diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/alpha/kernel/process.c linux.21pre3-ac4/arch/alpha/kernel/process.c --- linux.21pre3/arch/alpha/kernel/process.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/alpha/kernel/process.c 2003-01-06 19:09:59.000000000 +0000 @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -74,9 +75,6 @@ cpu_idle(void) { /* An endless idle loop with no priority at all. */ - current->nice = 20; - current->counter = -100; - while (1) { /* FIXME -- EV6 and LCA45 know how to power down the CPU. */ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/alpha/kernel/smp.c linux.21pre3-ac4/arch/alpha/kernel/smp.c --- linux.21pre3/arch/alpha/kernel/smp.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/alpha/kernel/smp.c 2003-01-06 19:09:59.000000000 +0000 @@ -81,6 +81,7 @@ int smp_num_probed; /* Internal processor count */ int smp_num_cpus = 1; /* Number that came online. */ int smp_threads_ready; /* True once the per process idle is forked. */ +unsigned long cache_decay_ticks; int __cpu_number_map[NR_CPUS]; int __cpu_logical_map[NR_CPUS]; @@ -155,11 +156,6 @@ { int cpuid = hard_smp_processor_id(); - if (current != init_tasks[cpu_number_map(cpuid)]) { - printk("BUG: smp_calling: cpu %d current %p init_tasks[cpu_number_map(cpuid)] %p\n", - cpuid, current, init_tasks[cpu_number_map(cpuid)]); - } - DBGS(("CALLIN %d state 0x%lx\n", cpuid, current->state)); /* Turn on machine checks. */ @@ -214,9 +210,6 @@ DBGS(("smp_callin: commencing CPU %d current %p\n", cpuid, current)); - /* Setup the scheduler for this processor. */ - init_idle(); - /* ??? This should be in init_idle. */ atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; @@ -446,14 +439,11 @@ if (idle == &init_task) panic("idle process is init_task for CPU %d", cpuid); - idle->processor = cpuid; - idle->cpus_runnable = 1 << cpuid; /* we schedule the first task manually */ + init_idle(idle, cpuid); + unhash_process(idle); + __cpu_logical_map[cpunum] = cpuid; __cpu_number_map[cpuid] = cpunum; - - del_from_runqueue(idle); - unhash_process(idle); - init_tasks[cpunum] = idle; DBGS(("smp_boot_one_cpu: CPU %d state 0x%lx flags 0x%lx\n", cpuid, idle->state, idle->flags)); @@ -560,13 +550,10 @@ __cpu_number_map[boot_cpuid] = 0; __cpu_logical_map[0] = boot_cpuid; - current->processor = boot_cpuid; smp_store_cpu_info(boot_cpuid); smp_setup_percpu_timer(boot_cpuid); - init_idle(); - /* ??? This should be in init_idle. */ atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/alpha/mm/fault.c linux.21pre3-ac4/arch/alpha/mm/fault.c --- linux.21pre3/arch/alpha/mm/fault.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/alpha/mm/fault.c 2003-01-06 19:10:18.000000000 +0000 @@ -122,8 +122,6 @@ goto bad_area; if (vma->vm_start <= address) goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (expand_stack(vma, address)) goto bad_area; /* diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/arm/config.in linux.21pre3-ac4/arch/arm/config.in --- linux.21pre3/arch/arm/config.in 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/arm/config.in 2003-01-06 15:41:35.000000000 +0000 @@ -646,6 +646,7 @@ bool 'Kernel debugging' CONFIG_DEBUG_KERNEL dep_bool ' Debug memory allocations' CONFIG_DEBUG_SLAB $CONFIG_DEBUG_KERNEL dep_bool ' Magic SysRq key' CONFIG_MAGIC_SYSRQ $CONFIG_DEBUG_KERNEL +dep_bool ' Morse code panics' CONFIG_PANIC_MORSE $CONFIG_DEBUG_KERNEL $CONFIG_PC_KEYB dep_bool ' Spinlock debugging' CONFIG_DEBUG_SPINLOCK $CONFIG_DEBUG_KERNEL dep_bool ' Wait queue debugging' CONFIG_DEBUG_WAITQ $CONFIG_DEBUG_KERNEL dep_bool ' Verbose BUG() reporting (adds 70K)' CONFIG_DEBUG_BUGVERBOSE $CONFIG_DEBUG_KERNEL diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/arm/mm/fault-common.c linux.21pre3-ac4/arch/arm/mm/fault-common.c --- linux.21pre3/arch/arm/mm/fault-common.c 2003-01-07 14:02:02.000000000 +0000 +++ linux.21pre3-ac4/arch/arm/mm/fault-common.c 2003-01-06 19:10:18.000000000 +0000 @@ -229,7 +229,7 @@ goto survive; check_stack: - if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr)) + if (!expand_stack(vma, addr)) goto good_area; out: return fault; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/boot/setup.S linux.21pre3-ac4/arch/i386/boot/setup.S --- linux.21pre3/arch/i386/boot/setup.S 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/boot/setup.S 2003-01-08 15:33:39.000000000 +0000 @@ -45,6 +45,10 @@ * New A20 code ported from SYSLINUX by H. Peter Anvin. AMD Elan bugfixes * by Robert Schwebel, December 2001 * + * BIOS Enhanced Disk Drive support + * by Matt Domsch October 2002 + * conformant to T13 Committee www.t13.org + * projects 1572D, 1484D, 1386D, 1226DT */ #include @@ -53,6 +57,7 @@ #include #include #include +#include #include /* Signature words to ensure LILO loaded us right */ @@ -543,6 +548,70 @@ done_apm_bios: #endif +#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) +# Do the BIOS Enhanced Disk Drive calls +# This consists of two calls: +# int 13h ah=41h "Check Extensions Present" +# int 13h ah=48h "Get Device Parameters" +# +# A buffer of size EDDMAXNR*(EDDEXTSIZE+EDDPARMSIZE) is reserved for our use +# in the empty_zero_page at EDDBUF. The first four bytes of which are +# used to store the device number, interface support map and version +# results from fn41. The following 74 bytes are used to store +# the results from fn48. Starting from device 80h, fn41, then fn48 +# are called and their results stored in EDDBUF+n*(EDDEXTSIZE+EDDPARMIZE). +# Then the pointer is incremented to store the data for the next call. +# This repeats until either a device doesn't exist, or until EDDMAXNR +# devices have been stored. +# The one tricky part is that ds:si always points four bytes into +# the structure, and the fn41 results are stored at offsets +# from there. This removes the need to increment the pointer for +# every store, and leaves it ready for the fn48 call. +# A second one-byte buffer, EDDNR, in the empty_zero_page stores +# the number of BIOS devices which exist, up to EDDMAXNR. +# In setup.c, copy_edd() stores both empty_zero_page buffers away +# for later use, as they would get overwritten otherwise. +# This code is sensitive to the size of the structs in edd.h +edd_start: + # %ds points to the bootsector + # result buffer for fn48 + movw $EDDBUF+EDDEXTSIZE, %si # in ds:si, fn41 results + # kept just before that + movb $0, (EDDNR) # zero value at EDDNR + movb $0x80, %dl # BIOS device 0x80 + +edd_check_ext: + movb $CHECKEXTENSIONSPRESENT, %ah # Function 41 + movw $EDDMAGIC1, %bx # magic + int $0x13 # make the call + jc edd_done # no more BIOS devices + + cmpw $EDDMAGIC2, %bx # is magic right? + jne edd_next # nope, next... + + movb %dl, %ds:-4(%si) # store device number + movb %ah, %ds:-3(%si) # store version + movw %cx, %ds:-2(%si) # store extensions + incb (EDDNR) # note that we stored something + +edd_get_device_params: + movw $EDDPARMSIZE, %ds:(%si) # put size + movb $GETDEVICEPARAMETERS, %ah # Function 48 + int $0x13 # make the call + # Don't check for fail return + # it doesn't matter. + movw %si, %ax # increment si + addw $EDDPARMSIZE+EDDEXTSIZE, %ax + movw %ax, %si + +edd_next: + incb %dl # increment to next device + cmpb $EDDMAXNR, (EDDNR) # Out of space? + jb edd_check_ext # keep looping + +edd_done: +#endif + # Now we want to move to protected mode ... cmpw $0, %cs:realmode_swtch jz rmodeswtch_normal diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/config.in linux.21pre3-ac4/arch/i386/config.in --- linux.21pre3/arch/i386/config.in 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/config.in 2003-01-10 16:26:51.000000000 +0000 @@ -99,7 +99,7 @@ define_int CONFIG_X86_L1_CACHE_SHIFT 5 define_bool CONFIG_X86_HAS_TSC y define_bool CONFIG_X86_GOOD_APIC y - define_bool CONFIG_X86_PGE y + bool 'PGE extensions (not for Cyrix/Transmeta)' CONFIG_X86_PGE define_bool CONFIG_X86_USE_PPRO_CHECKSUM y define_bool CONFIG_X86_PPRO_FENCE y define_bool CONFIG_X86_F00F_WORKS_OK y @@ -179,6 +179,23 @@ bool 'Machine Check Exception' CONFIG_X86_MCE +mainmenu_option next_comment +comment 'CPU Frequency scaling' +dep_bool 'CPU Frequency scaling (EXPERIMENTAL)' CONFIG_CPU_FREQ $CONFIG_EXPERIMENTAL +if [ "$CONFIG_CPU_FREQ" = "y" ]; then + bool ' /proc/sys/cpu/ interface (2.4. / OLD)' CONFIG_CPU_FREQ_24_API + tristate ' AMD Mobile K6-2/K6-3 PowerNow!' CONFIG_X86_POWERNOW_K6 + if [ "$CONFIG_MELAN" = "y" ]; then + tristate ' AMD Elan' CONFIG_ELAN_CPUFREQ + fi + tristate ' VIA Cyrix III Longhaul' CONFIG_X86_LONGHAUL + tristate ' Intel Speedstep' CONFIG_X86_SPEEDSTEP + tristate ' Intel Pentium 4 clock modulation' CONFIG_X86_P4_CLOCKMOD + tristate ' Transmeta LongRun' CONFIG_X86_LONGRUN + tristate ' Cyrix MediaGX/NatSemi Geode Suspend Modulation' CONFIG_X86_GX_SUSPMOD +fi +endmenu + tristate 'Toshiba Laptop support' CONFIG_TOSHIBA tristate 'Dell laptop support' CONFIG_I8K @@ -186,6 +203,10 @@ tristate '/dev/cpu/*/msr - Model-specific register support' CONFIG_X86_MSR tristate '/dev/cpu/*/cpuid - CPU information support' CONFIG_X86_CPUID +if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then + tristate 'BIOS Enhanced Disk Drive calls determine boot disk (EXPERIMENTAL)' CONFIG_EDD +fi + choice 'High Memory Support' \ "off CONFIG_NOHIGHMEM \ 4GB CONFIG_HIGHMEM4G \ @@ -277,6 +298,8 @@ bool 'ISA bus support' CONFIG_ISA fi +tristate 'NatSemi SCx200 support' CONFIG_SCx200 + source drivers/pci/Config.in bool 'EISA support' CONFIG_EISA @@ -309,6 +332,8 @@ tristate 'Kernel support for ELF binaries' CONFIG_BINFMT_ELF tristate 'Kernel support for MISC binaries' CONFIG_BINFMT_MISC +bool 'Kernel .config support' CONFIG_IKCONFIG + bool 'Power Management support' CONFIG_PM if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then @@ -459,12 +484,13 @@ bool 'Kernel debugging' CONFIG_DEBUG_KERNEL if [ "$CONFIG_DEBUG_KERNEL" != "n" ]; then bool ' Check for stack overflows' CONFIG_DEBUG_STACKOVERFLOW + bool ' Compile the kernel with frame pointers' CONFIG_FRAME_POINTER bool ' Debug high memory support' CONFIG_DEBUG_HIGHMEM bool ' Debug memory allocations' CONFIG_DEBUG_SLAB bool ' Memory mapped I/O debugging' CONFIG_DEBUG_IOVIRT bool ' Magic SysRq key' CONFIG_MAGIC_SYSRQ + bool ' Morse code panics' CONFIG_PANIC_MORSE bool ' Spinlock debugging' CONFIG_DEBUG_SPINLOCK - bool ' Compile the kernel with frame pointers' CONFIG_FRAME_POINTER fi endmenu diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/defconfig linux.21pre3-ac4/arch/i386/defconfig --- linux.21pre3/arch/i386/defconfig 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/defconfig 2003-01-08 15:33:39.000000000 +0000 @@ -56,6 +56,7 @@ # CONFIG_MICROCODE is not set # CONFIG_X86_MSR is not set # CONFIG_X86_CPUID is not set +# CONFIG_EDD is not set CONFIG_NOHIGHMEM=y # CONFIG_HIGHMEM4G is not set # CONFIG_HIGHMEM64G is not set diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/dmi_scan.c linux.21pre3-ac4/arch/i386/kernel/dmi_scan.c --- linux.21pre3/arch/i386/kernel/dmi_scan.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/dmi_scan.c 2003-01-06 15:38:26.000000000 +0000 @@ -694,6 +694,18 @@ MATCH(DMI_BIOS_VERSION, "R0204P1"), MATCH(DMI_BIOS_DATE, "09/12/00"), NO_MATCH } }, + + { swab_apm_power_in_minutes, "Sony VAIO", { /* Handle problems with APM on Sony Vaio PCG-Z600RE */ + MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), + MATCH(DMI_BIOS_VERSION, "R0116Z1"), + NO_MATCH, NO_MATCH + } }, + + { swab_apm_power_in_minutes, "Sony VAIO", { /* Handle problems with APM on Sony Vaio PCG-Z600RE */ + MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), + MATCH(DMI_BIOS_VERSION, "RK116Z1"), + NO_MATCH, NO_MATCH + } }, /* Machines which have problems handling enabled local APICs */ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/edd.c linux.21pre3-ac4/arch/i386/kernel/edd.c --- linux.21pre3/arch/i386/kernel/edd.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/edd.c 2003-01-08 15:33:39.000000000 +0000 @@ -0,0 +1,673 @@ +/* + * linux/arch/i386/kernel/edd.c + * Copyright (C) 2002 Dell Computer Corporation + * by Matt Domsch + * + * BIOS Enhanced Disk Drive Services (EDD) + * conformant to T13 Committee www.t13.org + * projects 1572D, 1484D, 1386D, 1226DT + * + * This code takes information provided by BIOS EDD calls + * fn41 - Check Extensions Present and + * fn48 - Get Device Parametes with EDD extensions + * made in setup.S, copied to safe structures in setup.c, + * and presents it in driverfs. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License v2.0 as published by + * the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +/* + * TODO: + * - Convert to using /proc instead of driverfs + * - move edd.[ch] to better locations if/when one is decided + * - keep current with 2.5 EDD code changes + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Matt Domsch "); +MODULE_DESCRIPTION("proc interface to BIOS EDD information"); +MODULE_LICENSE("GPL"); + +#define EDD_VERSION "0.08 2003-Jan-05" +#define EDD_DEVICE_NAME_SIZE 16 +#define REPORT_URL "http://domsch.com/linux/edd30/results.html" + +#define left (count - (p - page) - 1) + +static struct proc_dir_entry *bios_dir; + +struct attr_entry { + struct proc_dir_entry *entry; + struct list_head node; +}; + +struct edd_device { + char name[EDD_DEVICE_NAME_SIZE]; + struct edd_info *info; + struct proc_dir_entry *dir; + struct list_head attr_list; +}; + +static struct edd_device *edd_devices[EDDMAXNR]; + +struct edd_attribute { + char *name; + int (*show)(char *page, char **start, off_t off, + int count, int *eof, void *data); + int (*test) (struct edd_device * edev); +}; + +#define EDD_DEVICE_ATTR(_name,_show,_test) \ +struct edd_attribute edd_attr_##_name = { \ + .name = __stringify(_name), \ + .show = _show, \ + .test = _test, \ +}; + +static inline struct edd_info * +edd_dev_get_info(struct edd_device *edev) +{ + return edev->info; +} + +static inline void +edd_dev_set_info(struct edd_device *edev, struct edd_info *info) +{ + edev->info = info; +} + +static int +proc_calc_metrics(char *page, char **start, off_t off, + int count, int *eof, int len) +{ + if (len <= off+count) *eof = 1; + *start = page + off; + len -= off; + if (len>count) len = count; + if (len<0) len = 0; + return len; +} + +static int +edd_dump_raw_data(char *b, int count, void *data, int length) +{ + char *orig_b = b; + char hexbuf[80], ascbuf[20], *h, *a, c; + unsigned char *p = data; + unsigned long column = 0; + int length_printed = 0, d; + const char maxcolumn = 16; + while (length_printed < length && count > 0) { + h = hexbuf; + a = ascbuf; + for (column = 0; + column < maxcolumn && length_printed < length; column++) { + h += sprintf(h, "%02x ", (unsigned char) *p); + if (!isprint(*p)) + c = '.'; + else + c = *p; + a += sprintf(a, "%c", c); + p++; + length_printed++; + } + /* pad out the line */ + for (; column < maxcolumn; column++) { + h += sprintf(h, " "); + a += sprintf(a, " "); + } + d = snprintf(b, count, "%s\t%s\n", hexbuf, ascbuf); + b += d; + count -= d; + } + return (b - orig_b); +} + +static int +edd_show_host_bus(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + int i; + + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + for (i = 0; i < 4; i++) { + if (isprint(info->params.host_bus_type[i])) { + p += snprintf(p, left, "%c", info->params.host_bus_type[i]); + } else { + p += snprintf(p, left, " "); + } + } + + if (!strncmp(info->params.host_bus_type, "ISA", 3)) { + p += snprintf(p, left, "\tbase_address: %x\n", + info->params.interface_path.isa.base_address); + } else if (!strncmp(info->params.host_bus_type, "PCIX", 4) || + !strncmp(info->params.host_bus_type, "PCI", 3)) { + p += snprintf(p, left, + "\t%02x:%02x.%d channel: %u\n", + info->params.interface_path.pci.bus, + info->params.interface_path.pci.slot, + info->params.interface_path.pci.function, + info->params.interface_path.pci.channel); + } else if (!strncmp(info->params.host_bus_type, "IBND", 4) || + !strncmp(info->params.host_bus_type, "XPRS", 4) || + !strncmp(info->params.host_bus_type, "HTPT", 4)) { + p += snprintf(p, left, + "\tTBD: %llx\n", + info->params.interface_path.ibnd.reserved); + + } else { + p += snprintf(p, left, "\tunknown: %llx\n", + info->params.interface_path.unknown.reserved); + } + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_interface(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + int i; + + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + for (i = 0; i < 8; i++) { + if (isprint(info->params.interface_type[i])) { + p += snprintf(p, left, "%c", info->params.interface_type[i]); + } else { + p += snprintf(p, left, " "); + } + } + if (!strncmp(info->params.interface_type, "ATAPI", 5)) { + p += snprintf(p, left, "\tdevice: %u lun: %u\n", + info->params.device_path.atapi.device, + info->params.device_path.atapi.lun); + } else if (!strncmp(info->params.interface_type, "ATA", 3)) { + p += snprintf(p, left, "\tdevice: %u\n", + info->params.device_path.ata.device); + } else if (!strncmp(info->params.interface_type, "SCSI", 4)) { + p += snprintf(p, left, "\tid: %u lun: %llu\n", + info->params.device_path.scsi.id, + info->params.device_path.scsi.lun); + } else if (!strncmp(info->params.interface_type, "USB", 3)) { + p += snprintf(p, left, "\tserial_number: %llx\n", + info->params.device_path.usb.serial_number); + } else if (!strncmp(info->params.interface_type, "1394", 4)) { + p += snprintf(p, left, "\teui: %llx\n", + info->params.device_path.i1394.eui); + } else if (!strncmp(info->params.interface_type, "FIBRE", 5)) { + p += snprintf(p, left, "\twwid: %llx lun: %llx\n", + info->params.device_path.fibre.wwid, + info->params.device_path.fibre.lun); + } else if (!strncmp(info->params.interface_type, "I2O", 3)) { + p += snprintf(p, left, "\tidentity_tag: %llx\n", + info->params.device_path.i2o.identity_tag); + } else if (!strncmp(info->params.interface_type, "RAID", 4)) { + p += snprintf(p, left, "\tidentity_tag: %x\n", + info->params.device_path.raid.array_number); + } else if (!strncmp(info->params.interface_type, "SATA", 4)) { + p += snprintf(p, left, "\tdevice: %u\n", + info->params.device_path.sata.device); + } else { + p += snprintf(p, left, "\tunknown: %llx %llx\n", + info->params.device_path.unknown.reserved1, + info->params.device_path.unknown.reserved2); + } + + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +/** + * edd_show_raw_data() - unparses EDD information, returned to user-space + * + * Returns: number of bytes written, or 0 on failure + */ +static int +edd_show_raw_data(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + int i, warn_padding = 0, nonzero_path = 0, + len = sizeof (*info) - 4; + uint8_t checksum = 0, c = 0; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + if (!(info->params.key == 0xBEDD || info->params.key == 0xDDBE)) + len = info->params.length; + + p += snprintf(p, left, "int13 fn48 returned data:\n\n"); + p += edd_dump_raw_data(p, left, ((char *) info) + 4, len); + + /* Spec violation. Adaptec AIC7899 returns 0xDDBE + here, when it should be 0xBEDD. + */ + p += snprintf(p, left, "\n"); + if (info->params.key == 0xDDBE) { + p += snprintf(p, left, + "Warning: Spec violation. Key should be 0xBEDD, is 0xDDBE\n"); + } + + if (!(info->params.key == 0xBEDD || info->params.key == 0xDDBE)) { + goto out; + } + + for (i = 30; i <= 73; i++) { + c = *(((uint8_t *) info) + i + 4); + if (c) + nonzero_path++; + checksum += c; + } + + if (checksum) { + p += snprintf(p, left, + "Warning: Spec violation. Device Path checksum invalid.\n"); + } + + if (!nonzero_path) { + p += snprintf(p, left, "Error: Spec violation. Empty device path.\n"); + goto out; + } + + for (i = 0; i < 4; i++) { + if (!isprint(info->params.host_bus_type[i])) { + warn_padding++; + } + } + for (i = 0; i < 8; i++) { + if (!isprint(info->params.interface_type[i])) { + warn_padding++; + } + } + + if (warn_padding) { + p += snprintf(p, left, + "Warning: Spec violation. Padding should be 0x20.\n"); + } + +out: + p += snprintf(p, left, "\nPlease check %s\n", REPORT_URL); + p += snprintf(p, left, "to see if this device has been reported. If not,\n"); + p += snprintf(p, left, "please send the information requested there.\n"); + + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_version(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + p += snprintf(p, left, "0x%02x\n", info->version); + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_extensions(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + if (info->interface_support & EDD_EXT_FIXED_DISK_ACCESS) { + p += snprintf(p, left, "Fixed disk access\n"); + } + if (info->interface_support & EDD_EXT_DEVICE_LOCKING_AND_EJECTING) { + p += snprintf(p, left, "Device locking and ejecting\n"); + } + if (info->interface_support & EDD_EXT_ENHANCED_DISK_DRIVE_SUPPORT) { + p += snprintf(p, left, "Enhanced Disk Drive support\n"); + } + if (info->interface_support & EDD_EXT_64BIT_EXTENSIONS) { + p += snprintf(p, left, "64-bit extensions\n"); + } + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_info_flags(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + if (info->params.info_flags & EDD_INFO_DMA_BOUNDRY_ERROR_TRANSPARENT) + p += snprintf(p, left, "DMA boundry error transparent\n"); + if (info->params.info_flags & EDD_INFO_GEOMETRY_VALID) + p += snprintf(p, left, "geometry valid\n"); + if (info->params.info_flags & EDD_INFO_REMOVABLE) + p += snprintf(p, left, "removable\n"); + if (info->params.info_flags & EDD_INFO_WRITE_VERIFY) + p += snprintf(p, left, "write verify\n"); + if (info->params.info_flags & EDD_INFO_MEDIA_CHANGE_NOTIFICATION) + p += snprintf(p, left, "media change notification\n"); + if (info->params.info_flags & EDD_INFO_LOCKABLE) + p += snprintf(p, left, "lockable\n"); + if (info->params.info_flags & EDD_INFO_NO_MEDIA_PRESENT) + p += snprintf(p, left, "no media present\n"); + if (info->params.info_flags & EDD_INFO_USE_INT13_FN50) + p += snprintf(p, left, "use int13 fn50\n"); + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_default_cylinders(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + p += snprintf(p, left, "0x%x\n", info->params.num_default_cylinders); + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_default_heads(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + p += snprintf(p, left, "0x%x\n", info->params.num_default_heads); + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_default_sectors_per_track(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + p += snprintf(p, left, "0x%x\n", info->params.sectors_per_track); + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_show_sectors(char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct edd_info *info = data; + char *p = page; + if (!info || !page || off) { + return proc_calc_metrics(page, start, off, count, eof, 0); + } + + p += snprintf(p, left, "0x%llx\n", info->params.number_of_sectors); + return proc_calc_metrics(page, start, off, count, eof, (p - page)); +} + +static int +edd_has_default_cylinders(struct edd_device *edev) +{ + struct edd_info *info = edd_dev_get_info(edev); + if (!edev || !info) + return 0; + return info->params.num_default_cylinders > 0; +} + +static int +edd_has_default_heads(struct edd_device *edev) +{ + struct edd_info *info = edd_dev_get_info(edev); + if (!edev || !info) + return 0; + return info->params.num_default_heads > 0; +} + +static int +edd_has_default_sectors_per_track(struct edd_device *edev) +{ + struct edd_info *info = edd_dev_get_info(edev); + if (!edev || !info) + return 0; + return info->params.sectors_per_track > 0; +} + +static int +edd_has_edd30(struct edd_device *edev) +{ + struct edd_info *info = edd_dev_get_info(edev); + int i, nonzero_path = 0; + char c; + + if (!edev || !info) + return 0; + + if (!(info->params.key == 0xBEDD || info->params.key == 0xDDBE)) { + return 0; + } + + for (i = 30; i <= 73; i++) { + c = *(((uint8_t *) info) + i + 4); + if (c) { + nonzero_path++; + break; + } + } + if (!nonzero_path) { + return 0; + } + + return 1; +} + +static EDD_DEVICE_ATTR(raw_data, edd_show_raw_data, NULL); +static EDD_DEVICE_ATTR(version, edd_show_version, NULL); +static EDD_DEVICE_ATTR(extensions, edd_show_extensions, NULL); +static EDD_DEVICE_ATTR(info_flags, edd_show_info_flags, NULL); +static EDD_DEVICE_ATTR(sectors, edd_show_sectors, NULL); +static EDD_DEVICE_ATTR(default_cylinders, edd_show_default_cylinders, + edd_has_default_cylinders); +static EDD_DEVICE_ATTR(default_heads, edd_show_default_heads, + edd_has_default_heads); +static EDD_DEVICE_ATTR(default_sectors_per_track, + edd_show_default_sectors_per_track, + edd_has_default_sectors_per_track); +static EDD_DEVICE_ATTR(interface, edd_show_interface,edd_has_edd30); +static EDD_DEVICE_ATTR(host_bus, edd_show_host_bus, edd_has_edd30); + +static struct edd_attribute *def_attrs[] = { + &edd_attr_raw_data, + &edd_attr_version, + &edd_attr_extensions, + &edd_attr_info_flags, + &edd_attr_sectors, + &edd_attr_default_cylinders, + &edd_attr_default_heads, + &edd_attr_default_sectors_per_track, + &edd_attr_interface, + &edd_attr_host_bus, + NULL, +}; + +static inline void +edd_device_unregister(struct edd_device *edev) +{ + struct list_head *pos, *next; + struct attr_entry *ae; + + list_for_each_safe(pos, next, &edev->attr_list) { + ae = list_entry(pos, struct attr_entry, node); + remove_proc_entry(ae->entry->name, edev->dir); + list_del(&ae->node); + kfree(ae); + } + + remove_proc_entry(edev->dir->name, bios_dir); +} + +static int +edd_populate_dir(struct edd_device *edev) +{ + struct edd_attribute *attr; + struct attr_entry *ae; + int i; + int error = 0; + + for (i = 0; (attr=def_attrs[i]); i++) { + if (!attr->test || (attr->test && attr->test(edev))) { + ae = kmalloc(sizeof (*ae), GFP_KERNEL); + if (ae == NULL) { + error = 1; + break; + } + INIT_LIST_HEAD(&ae->node); + ae->entry = + create_proc_read_entry(attr->name, 0444, + edev->dir, attr->show, + edd_dev_get_info(edev)); + if (ae->entry == NULL) { + error = 1; + break; + } + list_add(&ae->node, &edev->attr_list); + } + } + + if (error) + return error; + + return 0; +} + +static int +edd_make_dir(struct edd_device *edev) +{ + int error=1; + + edev->dir = proc_mkdir(edev->name, bios_dir); + if (edev->dir != NULL) { + edev->dir->mode = (S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO); + error = edd_populate_dir(edev); + } + return error; +} + +static int +edd_device_register(struct edd_device *edev, int i) +{ + int error; + + if (!edev) + return 1; + memset(edev, 0, sizeof (*edev)); + INIT_LIST_HEAD(&edev->attr_list); + edd_dev_set_info(edev, &edd[i]); + snprintf(edev->name, EDD_DEVICE_NAME_SIZE, "int13_dev%02x", + edd[i].device); + error = edd_make_dir(edev); + return error; +} + +/** + * edd_init() - creates driverfs tree of EDD data + * + * This assumes that eddnr and edd were + * assigned in setup.c already. + */ +static int __init +edd_init(void) +{ + unsigned int i; + int rc = 0; + struct edd_device *edev; + + printk(KERN_INFO "BIOS EDD facility v%s, %d devices found\n", + EDD_VERSION, eddnr); + + if (!eddnr) { + printk(KERN_INFO "EDD information not available.\n"); + return 1; + } + + bios_dir = proc_mkdir("bios", NULL); + if (bios_dir == NULL) + return 1; + + for (i = 0; i < eddnr && i < EDDMAXNR && !rc; i++) { + edev = kmalloc(sizeof (*edev), GFP_KERNEL); + if (!edev) { + rc = 1; + break; + } + + rc = edd_device_register(edev, i); + if (rc) { + break; + } + edd_devices[i] = edev; + } + + if (rc) { + for (i = 0; i < eddnr && i < EDDMAXNR; i++) { + if ((edev = edd_devices[i])) { + edd_device_unregister(edev); + kfree(edev); + } + } + + remove_proc_entry(bios_dir->name, NULL); + } + + return rc; +} + +static void __exit +edd_exit(void) +{ + int i; + struct edd_device *edev; + + for (i = 0; i < eddnr && i < EDDMAXNR; i++) { + if ((edev = edd_devices[i])) { + edd_device_unregister(edev); + kfree(edev); + } + } + + remove_proc_entry(bios_dir->name, NULL); +} + +module_init(edd_init); +module_exit(edd_exit); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/elanfreq.c linux.21pre3-ac4/arch/i386/kernel/elanfreq.c --- linux.21pre3/arch/i386/kernel/elanfreq.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/elanfreq.c 2003-01-10 16:27:32.000000000 +0000 @@ -0,0 +1,297 @@ +/* + * elanfreq: cpufreq driver for the AMD ELAN family + * + * (c) Copyright 2002 Robert Schwebel + * + * Parts of this code are (c) Sven Geggus + * + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * 2002-02-13: - initial revision for 2.4.18-pre9 by Robert Schwebel + * + */ + +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +#define REG_CSCIR 0x22 /* Chip Setup and Control Index Register */ +#define REG_CSCDR 0x23 /* Chip Setup and Control Data Register */ + +static struct cpufreq_driver *elanfreq_driver; + +/* Module parameter */ +static int max_freq; + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Robert Schwebel , Sven Geggus "); +MODULE_DESCRIPTION("cpufreq driver for AMD's Elan CPUs"); + +struct s_elan_multiplier { + int clock; /* frequency in kHz */ + int val40h; /* PMU Force Mode register */ + int val80h; /* CPU Clock Speed Register */ +}; + +/* + * It is important that the frequencies + * are listed in ascending order here! + */ +struct s_elan_multiplier elan_multiplier[] = { + {1000, 0x02, 0x18}, + {2000, 0x02, 0x10}, + {4000, 0x02, 0x08}, + {8000, 0x00, 0x00}, + {16000, 0x00, 0x02}, + {33000, 0x00, 0x04}, + {66000, 0x01, 0x04}, + {99000, 0x01, 0x05} +}; + +static struct cpufreq_frequency_table elanfreq_table[] = { + {0, 1000}, + {1, 2000}, + {2, 4000}, + {3, 8000}, + {4, 16000}, + {5, 33000}, + {6, 66000}, + {7, 99000}, + {0, CPUFREQ_TABLE_END}, +}; + + +/** + * elanfreq_get_cpu_frequency: determine current cpu speed + * + * Finds out at which frequency the CPU of the Elan SOC runs + * at the moment. Frequencies from 1 to 33 MHz are generated + * the normal way, 66 and 99 MHz are called "Hyperspeed Mode" + * and have the rest of the chip running with 33 MHz. + */ + +static unsigned int elanfreq_get_cpu_frequency(void) +{ + u8 clockspeed_reg; /* Clock Speed Register */ + + local_irq_disable(); + outb_p(0x80,REG_CSCIR); + clockspeed_reg = inb_p(REG_CSCDR); + local_irq_enable(); + + if ((clockspeed_reg & 0xE0) == 0xE0) { return 0; } + + /* Are we in CPU clock multiplied mode (66/99 MHz)? */ + if ((clockspeed_reg & 0xE0) == 0xC0) { + if ((clockspeed_reg & 0x01) == 0) { + return 66000; + } else { + return 99000; + } + } + + /* 33 MHz is not 32 MHz... */ + if ((clockspeed_reg & 0xE0)==0xA0) + return 33000; + + return ((1<<((clockspeed_reg & 0xE0) >> 5)) * 1000); +} + + +/** + * elanfreq_set_cpu_frequency: Change the CPU core frequency + * @cpu: cpu number + * @freq: frequency in kHz + * + * This function takes a frequency value and changes the CPU frequency + * according to this. Note that the frequency has to be checked by + * elanfreq_validatespeed() for correctness! + * + * There is no return value. + */ + +static void elanfreq_set_cpu_state (unsigned int state) { + + struct cpufreq_freqs freqs; + + if (!elanfreq_driver) { + printk(KERN_ERR "cpufreq: initialization problem or invalid target frequency\n"); + return; + } + + freqs.old = elanfreq_get_cpu_frequency(); + freqs.new = elan_multiplier[state].clock; + freqs.cpu = 0; /* elanfreq.c is UP only driver */ + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + + printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",elan_multiplier[state].clock); + + + /* + * Access to the Elan's internal registers is indexed via + * 0x22: Chip Setup & Control Register Index Register (CSCI) + * 0x23: Chip Setup & Control Register Data Register (CSCD) + * + */ + + /* + * 0x40 is the Power Management Unit's Force Mode Register. + * Bit 6 enables Hyperspeed Mode (66/100 MHz core frequency) + */ + + local_irq_disable(); + outb_p(0x40,REG_CSCIR); /* Disable hyperspeed mode */ + outb_p(0x00,REG_CSCDR); + local_irq_enable(); /* wait till internal pipelines and */ + udelay(1000); /* buffers have cleaned up */ + + local_irq_disable(); + + /* now, set the CPU clock speed register (0x80) */ + outb_p(0x80,REG_CSCIR); + outb_p(elan_multiplier[state].val80h,REG_CSCDR); + + /* now, the hyperspeed bit in PMU Force Mode Register (0x40) */ + outb_p(0x40,REG_CSCIR); + outb_p(elan_multiplier[state].val40h,REG_CSCDR); + udelay(10000); + local_irq_enable(); + + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); +}; + + +/** + * elanfreq_validatespeed: test if frequency range is valid + * + * This function checks if a given frequency range in kHz is valid + * for the hardware supported by the driver. + */ + +static int elanfreq_verify (struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]); +} + +static int elanfreq_setpolicy (struct cpufreq_policy *policy) +{ + unsigned int newstate = 0; + + if (cpufreq_frequency_table_setpolicy(policy, &elanfreq_table[0], &newstate)) + return -EINVAL; + + elanfreq_set_cpu_state(newstate); + + return 0; +} + + +/* + * Module init and exit code + */ + +#ifndef MODULE +/** + * elanfreq_setup - elanfreq command line parameter parsing + * + * elanfreq command line parameter. Use: + * elanfreq=66000 + * to set the maximum CPU frequency to 66 MHz. Note that in + * case you do not give this boot parameter, the maximum + * frequency will fall back to _current_ CPU frequency which + * might be lower. If you build this as a module, use the + * max_freq module parameter instead. + */ +static int __init elanfreq_setup(char *str) +{ + max_freq = simple_strtoul(str, &str, 0); + return 1; +} +__setup("elanfreq=", elanfreq_setup); +#endif + +static int __init elanfreq_init(void) +{ + struct cpuinfo_x86 *c = cpu_data; + struct cpufreq_driver *driver; + int ret, i; + + /* Test if we have the right hardware */ + if ((c->x86_vendor != X86_VENDOR_AMD) || + (c->x86 != 4) || (c->x86_model!=10)) + { + printk(KERN_INFO "elanfreq: error: no Elan processor found!\n"); + return -ENODEV; + } + + driver = kmalloc(sizeof(struct cpufreq_driver) + + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (!driver) + return -ENOMEM; + + driver->policy = (struct cpufreq_policy *) (driver + 1); + + if (!max_freq) + max_freq = elanfreq_get_cpu_frequency(); + + /* table init */ + for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) { + if (elanfreq_table[i].frequency > max_freq) + elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID; + } + +#ifdef CONFIG_CPU_FREQ_24_API + driver->cpu_cur_freq[0] = elanfreq_get_cpu_frequency(); +#endif + + driver->verify = &elanfreq_verify; + driver->setpolicy = &elanfreq_setpolicy; + + driver->policy[0].cpu = 0; + ret = cpufreq_frequency_table_cpuinfo(&driver->policy[0], &elanfreq_table[0]); + if (ret) { + kfree(driver); + return ret; + } + driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE; + driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + + elanfreq_driver = driver; + + ret = cpufreq_register(driver); + if (ret) { + elanfreq_driver = NULL; + kfree(driver); + } + + return ret; +} + + +static void __exit elanfreq_exit(void) +{ + if (elanfreq_driver) { + cpufreq_unregister(); + kfree(elanfreq_driver); + } +} + +module_init(elanfreq_init); +module_exit(elanfreq_exit); + +MODULE_PARM (max_freq, "i"); + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/entry.S linux.21pre3-ac4/arch/i386/kernel/entry.S --- linux.21pre3/arch/i386/kernel/entry.S 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/entry.S 2003-01-06 19:10:43.000000000 +0000 @@ -79,7 +79,7 @@ exec_domain = 16 need_resched = 20 tsk_ptrace = 24 -processor = 52 +cpu = 32 ENOSYS = 38 @@ -184,9 +184,11 @@ ENTRY(ret_from_fork) +#if CONFIG_SMP pushl %ebx call SYMBOL_NAME(schedule_tail) addl $4, %esp +#endif GET_CURRENT(%ebx) testb $0x02,tsk_ptrace(%ebx) # PT_TRACESYS jne tracesys_exit @@ -645,8 +647,8 @@ .long SYMBOL_NAME(sys_tkill) .long SYMBOL_NAME(sys_ni_syscall) /* reserved for sendfile64 */ .long SYMBOL_NAME(sys_ni_syscall) /* 240 reserved for futex */ - .long SYMBOL_NAME(sys_ni_syscall) /* reserved for sched_setaffinity */ - .long SYMBOL_NAME(sys_ni_syscall) /* reserved for sched_getaffinity */ + .long SYMBOL_NAME(sys_sched_setaffinity) + .long SYMBOL_NAME(sys_sched_getaffinity) .long SYMBOL_NAME(sys_ni_syscall) /* sys_set_thread_area */ .long SYMBOL_NAME(sys_ni_syscall) /* sys_get_thread_area */ .long SYMBOL_NAME(sys_ni_syscall) /* 245 sys_io_setup */ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/gx-suspmod.c linux.21pre3-ac4/arch/i386/kernel/gx-suspmod.c --- linux.21pre3/arch/i386/kernel/gx-suspmod.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/gx-suspmod.c 2003-01-10 16:26:51.000000000 +0000 @@ -0,0 +1,515 @@ +/* + * Cyrix MediaGX and NatSemi Geode Suspend Modulation + * (C) 2002 Zwane Mwaikambo + * (C) 2002 Hiroshi Miura + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation + * + * The author(s) of this software shall not be held liable for damages + * of any nature resulting due to the use of this software. This + * software is provided AS-IS with no warranties. + * + * Theoritical note: + * + * (see Geode(tm) CS5530 manual (rev.4.1) page.56) + * + * CPU frequency control on NatSemi Geode GX1/GXLV processor and CS55x0 + * are based on Suspend Moduration. + * + * Suspend Modulation works by asserting and de-asserting the SUSP# pin + * to CPU(GX1/GXLV) for configurable durations. When asserting SUSP# + * the CPU enters an idle state. GX1 stops its core clock when SUSP# is + * asserted then power consumption is reduced. + * + * Suspend Modulation's OFF/ON duration are configurable + * with 'Suspend Modulation OFF Count Register' + * and 'Suspend Modulation ON Count Register'. + * These registers are 8bit counters that represent the number of + * 32us intervals which the SUSP# pin is asserted/de-asserted to the + * processor. + * + * These counters define a ratio which is the effective frequency + * of operation of the system. + * + * On Count + * F_eff = Fgx * ---------------------- + * On Count + Off Count + * + * 0 <= On Count, Off Count <= 255 + * + * From these limits, we can get register values + * + * on_duration + off_duration <= MAX_DURATION + * off_duration = on_duration * (stock_freq - freq) / freq + * + * on_duration = (freq * DURATION) / stock_freq + * off_duration = DURATION - on_duration + * + * + *--------------------------------------------------------------------------- + * + * ChangeLog: + * Dec. 11, 2002 Hiroshi Miura + * - rewrite for Cyrix MediaGX Cx5510/5520 and + * NatSemi Geode Cs5530(A). + * + * Jul. ??, 2002 Zwane Mwaikambo + * - cs5530_mod patch for 2.4.19-rc1. + * + *--------------------------------------------------------------------------- + * + * Todo + * Test on machines with 5510, 5530, 5530A + */ + +/************************************************************************ + * Suspend Modulation - Definitions * + ************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* PCI config registers, all at F0 */ +#define PCI_PMER1 0x80 /* power management enable register 1 */ +#define PCI_PMER2 0x81 /* power management enable register 2 */ +#define PCI_PMER3 0x82 /* power management enable register 3 */ +#define PCI_IRQTC 0x8c /* irq speedup timer counter register:typical 2 to 4ms */ +#define PCI_VIDTC 0x8d /* video speedup timer counter register: typical 50 to 100ms */ +#define PCI_MODOFF 0x94 /* suspend modulation OFF counter register, 1 = 32us */ +#define PCI_MODON 0x95 /* suspend modulation ON counter register */ +#define PCI_SUSCFG 0x96 /* suspend configuration register */ + +/* PMER1 bits */ +#define GPM (1<<0) /* global power management */ +#define GIT (1<<1) /* globally enable PM device idle timers */ +#define GTR (1<<2) /* globally enable IO traps */ +#define IRQ_SPDUP (1<<3) /* disable clock throttle during interrupt handling */ +#define VID_SPDUP (1<<4) /* disable clock throttle during vga video handling */ + +/* SUSCFG bits */ +#define SUSMOD (1<<0) /* enable/disable suspend modulation */ +/* the belows support only with cs5530 (after rev.1.2)/cs5530A */ +#define SMISPDUP (1<<1) /* select how SMI re-enable suspend modulation: */ + /* IRQTC timer or read SMI speedup disable reg.(F1BAR[08-09h]) */ +#define SUSCFG (1<<2) /* enable powering down a GXLV processor. "Special 3Volt Suspend" mode */ +/* the belows support only with cs5530A */ +#define PWRSVE_ISA (1<<3) /* stop ISA clock */ +#define PWRSVE (1<<4) /* active idle */ + +struct gxfreq_params { + u8 on_duration; + u8 off_duration; + u8 pci_suscfg; + u8 pci_pmer1; + u8 pci_pmer2; + u8 pci_rev; + struct pci_dev *cs55x0; +}; + +static struct cpufreq_driver *gx_driver; +static struct gxfreq_params *gx_params; +static int stock_freq; + +/* PCI bus clock - defaults to 30.000 if cpu_khz is not available */ +static int pci_busclk = 0; +MODULE_PARM(pci_busclk, "i"); + +/* maximum duration for which the cpu may be suspended + * (32us * MAX_DURATION). If no parameter is given, this defaults + * to 255. + * Note that this leads to a maximum of 8 ms(!) where the CPU clock + * is suspended -- processing power is just 0.39% of what it used to be, + * though. 781.25 kHz(!) for a 200 MHz processor -- wow. */ +static int max_duration = 255; +MODULE_PARM(max_duration, "i"); + +/* For the default policy, we want at least some processing power + * - let's say 5%. (min = maxfreq / POLICY_MIN_DIV) + */ +#define POLICY_MIN_DIV 20 + + +/* DEBUG + * Define it if you want verbose debug output + */ + +#define SUSPMOD_DEBUG 1 + +#ifdef SUSPMOD_DEBUG +#define dprintk(msg...) printk(KERN_DEBUG "cpufreq:" msg) +#else +#define dprintk(msg...) do { } while(0); +#endif + +/** + * we can detect a core multipiler from dir0_lsb + * from GX1 datasheet p.56, + * MULT[3:0]: + * 0000 = SYSCLK multiplied by 4 (test only) + * 0001 = SYSCLK multiplied by 10 + * 0010 = SYSCLK multiplied by 4 + * 0011 = SYSCLK multiplied by 6 + * 0100 = SYSCLK multiplied by 9 + * 0101 = SYSCLK multiplied by 5 + * 0110 = SYSCLK multiplied by 7 + * 0111 = SYSCLK multiplied by 8 + * of 33.3MHz + **/ +static int gx_freq_mult[16] = { + 4, 10, 4, 6, 9, 5, 7, 8, + 0, 0, 0, 0, 0, 0, 0, 0 +}; + + +/**************************************************************** + * Low Level chipset interface * + ****************************************************************/ +static struct pci_device_id gx_chipset_tbl[] __initdata = { + { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, PCI_ANY_ID, PCI_ANY_ID }, + { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, PCI_ANY_ID, PCI_ANY_ID }, + { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, PCI_ANY_ID, PCI_ANY_ID }, + { 0, }, +}; + +/** + * gx_detect_chipset: + * + **/ +static __init struct pci_dev *gx_detect_chipset(void) +{ + struct pci_dev *gx_pci; + + /* check if CPU is a MediaGX or a Geode. */ + if ((current_cpu_data.x86_vendor != X86_VENDOR_NSC) && + (current_cpu_data.x86_vendor != X86_VENDOR_CYRIX)) { + printk(KERN_INFO "gx-suspmod: error: no MediaGX/Geode processor found!\n"); + return NULL; + } + + /* detect which companion chip is used */ + pci_for_each_dev(gx_pci) { + if ((pci_match_device (gx_chipset_tbl, gx_pci)) != NULL) { + return gx_pci; + } + } + + dprintk(KERN_INFO "gx-suspmod: error: no supported chipset found!\n"); + return NULL; +} + +/** + * gx_get_cpuspeed: + * + * Finds out at which efficient frequency the Cyrix MediaGX/NatSemi Geode CPU runs. + */ +static int gx_get_cpuspeed(void) +{ + if ((gx_params->pci_suscfg & SUSMOD) == 0) + return stock_freq; + + return (stock_freq * gx_params->on_duration) + / (gx_params->on_duration + gx_params->off_duration); +} + +/** + * gx_validate_speed: + * determine current cpu speed + * +**/ + +static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration, u8 *off_duration) +{ + unsigned int i; + u8 tmp_on, tmp_off; + int old_tmp_freq = stock_freq; + int tmp_freq; + + *on_duration=1; + *off_duration=0; + + for (i=max_duration; i>0; i--) { + tmp_on = ((khz * i) / stock_freq) & 0xff; + tmp_off = i - tmp_on; + tmp_freq = (stock_freq * tmp_on) / i; + /* if this relation is closer to khz, use this. If it's equal, + * prefer it, too - lower latency */ + if (abs(tmp_freq - khz) <= abs(old_tmp_freq - khz)) { + *on_duration = tmp_on; + *off_duration = tmp_off; + old_tmp_freq = tmp_freq; + } + } + + return old_tmp_freq; +} + + +/** + * gx_set_cpuspeed: + * set cpu speed in khz. + **/ + +static void gx_set_cpuspeed(unsigned int khz) +{ + u8 suscfg, pmer1; + unsigned int new_khz; + unsigned long flags; + struct cpufreq_freqs freqs; + + + freqs.cpu = 0; + freqs.old = gx_get_cpuspeed(); + + new_khz = gx_validate_speed(khz, &gx_params->on_duration, &gx_params->off_duration); + + freqs.new = new_khz; + + if (new_khz == stock_freq) { /* if new khz == 100% of CPU speed, it is special case */ + local_irq_save(flags); + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + pci_write_config_byte(gx_params->cs55x0, PCI_SUSCFG, (gx_params->pci_suscfg & ~(SUSMOD))); + pci_read_config_byte(gx_params->cs55x0, PCI_SUSCFG, &(gx_params->pci_suscfg)); + local_irq_restore(flags); + dprintk("suspend modulation disabled: cpu runs 100 percent speed.\n"); + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + return; + } + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + + local_irq_save(flags); + switch (gx_params->cs55x0->device) { + case PCI_DEVICE_ID_CYRIX_5530_LEGACY: + pmer1 = gx_params->pci_pmer1 | IRQ_SPDUP | VID_SPDUP; + /* FIXME: need to test other values -- Zwane,Miura */ + pci_write_config_byte(gx_params->cs55x0, PCI_IRQTC, 4); /* typical 2 to 4ms */ + pci_write_config_byte(gx_params->cs55x0, PCI_VIDTC, 100);/* typical 50 to 100ms */ + pci_write_config_byte(gx_params->cs55x0, PCI_PMER1, pmer1); + + if (gx_params->pci_rev < 0x10) { /* CS5530(rev 1.2, 1.3) */ + suscfg = gx_params->pci_suscfg | SUSMOD; + } else { /* CS5530A,B.. */ + suscfg = gx_params->pci_suscfg | SUSMOD | PWRSVE; + } + break; + case PCI_DEVICE_ID_CYRIX_5520: + case PCI_DEVICE_ID_CYRIX_5510: + suscfg = gx_params->pci_suscfg | SUSMOD; + break; + default: + local_irq_restore(flags); + dprintk("fatal: try to set unknown chipset.\n"); + return; + } + + pci_write_config_byte(gx_params->cs55x0, PCI_MODOFF, gx_params->off_duration); + pci_write_config_byte(gx_params->cs55x0, PCI_MODON, gx_params->on_duration); + + pci_write_config_byte(gx_params->cs55x0, PCI_SUSCFG, suscfg); + pci_read_config_byte(gx_params->cs55x0, PCI_SUSCFG, &suscfg); + + local_irq_restore(flags); + + gx_params->pci_suscfg = suscfg; + + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + dprintk("suspend modulation w/ duration of ON:%d us, OFF:%d us\n", + gx_params->on_duration * 32, gx_params->off_duration * 32); + dprintk("suspend modulation w/ clock speed: %d kHz.\n", freqs.new); +} + +/**************************************************************** + * High level functions * + ****************************************************************/ + +/* + * cpufreq_gx_verify: test if frequency range is valid + * + * This function checks if a given frequency range in kHz is valid + * for the hardware supported by the driver. + */ + +static int cpufreq_gx_verify(struct cpufreq_policy *policy) +{ + unsigned int tmp_freq = 0; + u8 tmp1, tmp2; + + if (!gx_driver || !stock_freq || !policy) + return -EINVAL; + + policy->cpu = 0; + cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq); + + /* it needs to be assured that at least one supported frequency is + * within policy->min and policy->max. If it is not, policy->max + * needs to be increased until one freuqency is supported. + * policy->min may not be decreased, though. This way we guarantee a + * specific processing capacity. + */ + tmp_freq = gx_validate_speed(policy->min, &tmp1, &tmp2); + if (tmp_freq > policy->min) { + policy->min = tmp_freq; + if (policy->min > policy->max) + policy->max = tmp_freq; + } else { + tmp_freq = gx_validate_speed(policy->max, &tmp1, &tmp2); + while (tmp_freq < policy->max) { + policy->max += stock_freq / max_duration; + tmp_freq = gx_validate_speed(policy->max, &tmp1, &tmp2); + } + } + + cpufreq_verify_within_limits(policy, (stock_freq / max_duration), stock_freq); + + return 0; +} + +/* + * cpufreq_gx_setpolicy: + * + */ +static int cpufreq_gx_setpolicy(struct cpufreq_policy *policy) +{ + + if (!gx_driver || !stock_freq || !policy) + return -EINVAL; + + policy->cpu = 0; + + if (policy->policy == CPUFREQ_POLICY_POWERSAVE) { + /* here we need to make sure that we don't set the + * frequency below policy->min (see comment in + * cpufreq_gx_verify() - guarantee of processing + * capacity. + */ + u8 tmp1, tmp2; + unsigned int tmp_freq = gx_validate_speed(policy->min, &tmp1, &tmp2); + while (tmp_freq < policy->min) { + tmp_freq += stock_freq / max_duration; + tmp_freq = gx_validate_speed(tmp_freq, &tmp1, &tmp2); + } + gx_set_cpuspeed(tmp_freq); + } else { + gx_set_cpuspeed(policy->max); + } + return 0; +} + +/* + * cpufreq_gx_init: + * MediaGX/Geode GX initilize cpufreq driver + */ + +static int __init cpufreq_gx_init(void) +{ + int maxfreq,ret,curfreq; + struct cpufreq_driver *driver; + struct gxfreq_params *params; + struct pci_dev *gx_pci; + u32 class_rev; + + /* Test if we have the right hardware */ + if ((gx_pci = gx_detect_chipset()) == NULL) + return -ENODEV; + + /* check whether module parameters are sane */ + if (max_duration > 0xff) + max_duration = 0xff; + + dprintk("geode suspend modulation available.\n"); + + driver = kmalloc(sizeof(struct cpufreq_driver) + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (driver == NULL) + return -ENOMEM; + params = kmalloc(sizeof(struct gxfreq_params), GFP_KERNEL); + if (params == NULL) { + kfree(driver); + return -ENOMEM; + } + + driver->policy = (struct cpufreq_policy *)(driver + 1); + params->cs55x0 = gx_pci; + + /* keep cs55x0 configurations */ + pci_read_config_byte(params->cs55x0, PCI_SUSCFG, &(params->pci_suscfg)); + pci_read_config_byte(params->cs55x0, PCI_PMER1, &(params->pci_pmer1)); + pci_read_config_byte(params->cs55x0, PCI_PMER2, &(params->pci_pmer2)); + pci_read_config_byte(params->cs55x0, PCI_MODON, &(params->on_duration)); + pci_read_config_byte(params->cs55x0, PCI_MODOFF, &(params->off_duration)); + pci_read_config_dword(params->cs55x0, PCI_CLASS_REVISION, &class_rev); + params->pci_rev = class_rev && 0xff; + + gx_params = params; + + /* determine maximum frequency */ + if (pci_busclk) { + maxfreq = pci_busclk * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f]; + } else if (cpu_khz) { + maxfreq = cpu_khz; + } else { + maxfreq = 30000 * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f]; + } + stock_freq = maxfreq; + curfreq = gx_get_cpuspeed(); + + dprintk("cpu max frequency is %d.\n", maxfreq); + dprintk("cpu current frequency is %dkHz.\n",curfreq); + + /* setup basic struct for cpufreq API */ +#ifdef CONFIG_CPU_FREQ_24_API + driver->cpu_cur_freq[0] = curfreq; +#endif + driver->policy[0].cpu = 0; + + if (max_duration < POLICY_MIN_DIV) + driver->policy[0].min = maxfreq / max_duration; + else + driver->policy[0].min = maxfreq / POLICY_MIN_DIV; + driver->policy[0].max = maxfreq; + driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE; + driver->policy[0].cpuinfo.min_freq = maxfreq / max_duration; + driver->policy[0].cpuinfo.max_freq = maxfreq; + driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + driver->verify = &cpufreq_gx_verify; + driver->setpolicy = &cpufreq_gx_setpolicy; + + gx_driver = driver; + + if ((ret = cpufreq_register(driver))) { + kfree(driver); + kfree(params); + return ret; /* register error! */ + } + + return 0; +} + +static void __exit cpufreq_gx_exit(void) +{ + if (gx_driver) { + /* disable throttling */ + gx_set_cpuspeed(stock_freq); + cpufreq_unregister(); + kfree(gx_driver); + kfree(gx_params); + } +} + +MODULE_AUTHOR ("Hiroshi Miura "); +MODULE_DESCRIPTION ("Cpufreq driver for Cyrix MediaGX and NatSemi Geode"); +MODULE_LICENSE ("GPL"); + +module_init(cpufreq_gx_init); +module_exit(cpufreq_gx_exit); + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/head.S linux.21pre3-ac4/arch/i386/kernel/head.S --- linux.21pre3/arch/i386/kernel/head.S 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/head.S 2003-01-06 15:43:53.000000000 +0000 @@ -445,4 +445,15 @@ .quad 0x00409a0000000000 /* 0x48 APM CS code */ .quad 0x00009a0000000000 /* 0x50 APM CS 16 code (16 bit) */ .quad 0x0040920000000000 /* 0x58 APM DS data */ + /* Segments used for calling PnP BIOS */ + .quad 0x00c09a0000000000 /* 0x60 32-bit code */ + .quad 0x00809a0000000000 /* 0x68 16-bit code */ + .quad 0x0080920000000000 /* 0x70 16-bit data */ + .quad 0x0080920000000000 /* 0x78 16-bit data */ + .quad 0x0080920000000000 /* 0x80 16-bit data */ + .quad 0x0000000000000000 /* 0x88 not used */ + .quad 0x0000000000000000 /* 0x90 not used */ + .quad 0x0000000000000000 /* 0x98 not used */ + /* Per CPU segments */ .fill NR_CPUS*4,8,0 /* space for TSS's and LDT's */ + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/i386_ksyms.c linux.21pre3-ac4/arch/i386/kernel/i386_ksyms.c --- linux.21pre3/arch/i386/kernel/i386_ksyms.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/i386_ksyms.c 2003-01-12 01:03:46.000000000 +0000 @@ -28,6 +28,7 @@ #include #include #include +#include extern void dump_thread(struct pt_regs *, struct user *); extern spinlock_t rtc_lock; @@ -49,6 +50,7 @@ EXPORT_SYMBOL(drive_info); #endif +extern unsigned long cpu_khz; extern unsigned long get_cmos_time(void); /* platform dependent support */ @@ -71,6 +73,7 @@ EXPORT_SYMBOL(pm_idle); EXPORT_SYMBOL(pm_power_off); EXPORT_SYMBOL(get_cmos_time); +EXPORT_SYMBOL(cpu_khz); EXPORT_SYMBOL(apm_info); EXPORT_SYMBOL(gdt); EXPORT_SYMBOL(empty_zero_page); @@ -86,6 +89,7 @@ /* Networking helper routines. */ EXPORT_SYMBOL(csum_partial_copy_generic); /* Delay loops */ +EXPORT_SYMBOL(__ndelay); EXPORT_SYMBOL(__udelay); EXPORT_SYMBOL(__delay); EXPORT_SYMBOL(__const_udelay); @@ -129,6 +133,7 @@ EXPORT_SYMBOL(cpu_data); EXPORT_SYMBOL(kernel_flag_cacheline); EXPORT_SYMBOL(smp_num_cpus); +EXPORT_SYMBOL(smp_num_siblings); EXPORT_SYMBOL(cpu_online_map); EXPORT_SYMBOL_NOVERS(__write_lock_failed); EXPORT_SYMBOL_NOVERS(__read_lock_failed); @@ -179,3 +184,8 @@ #ifdef CONFIG_MULTIQUAD EXPORT_SYMBOL(xquad_portio); #endif + +#ifdef CONFIG_EDD_MODULE +EXPORT_SYMBOL(edd); +EXPORT_SYMBOL(eddnr); +#endif diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/i387.c linux.21pre3-ac4/arch/i386/kernel/i387.c --- linux.21pre3/arch/i386/kernel/i387.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/i387.c 2003-01-06 15:38:26.000000000 +0000 @@ -248,7 +248,7 @@ * FXSR floating point environment conversions. */ -static inline int convert_fxsr_to_user( struct _fpstate *buf, +static int convert_fxsr_to_user( struct _fpstate *buf, struct i387_fxsave_struct *fxsave ) { unsigned long env[7]; @@ -270,13 +270,18 @@ to = &buf->_st[0]; from = (struct _fpxreg *) &fxsave->st_space[0]; for ( i = 0 ; i < 8 ; i++, to++, from++ ) { - if ( __copy_to_user( to, from, sizeof(*to) ) ) + unsigned long *t = (unsigned long *)to; + unsigned long *f = (unsigned long *)from; + + if (__put_user(*f, t) || + __put_user(*(f + 1), t + 1) || + __put_user(from->exponent, &to->exponent)) return 1; } return 0; } -static inline int convert_fxsr_from_user( struct i387_fxsave_struct *fxsave, +static int convert_fxsr_from_user( struct i387_fxsave_struct *fxsave, struct _fpstate *buf ) { unsigned long env[7]; @@ -299,7 +304,12 @@ to = (struct _fpxreg *) &fxsave->st_space[0]; from = &buf->_st[0]; for ( i = 0 ; i < 8 ; i++, to++, from++ ) { - if ( __copy_from_user( to, from, sizeof(*from) ) ) + unsigned long *t = (unsigned long *)to; + unsigned long *f = (unsigned long *)from; + + if (__get_user(*f, t) || + __get_user(*(f + 1), t + 1) || + __get_user(from->exponent, &to->exponent)) return 1; } return 0; @@ -321,7 +331,7 @@ return 1; } -static inline int save_i387_fxsave( struct _fpstate *buf ) +static int save_i387_fxsave( struct _fpstate *buf ) { struct task_struct *tsk = current; int err = 0; @@ -371,7 +381,7 @@ sizeof(struct i387_fsave_struct) ); } -static inline int restore_i387_fxsave( struct _fpstate *buf ) +static int restore_i387_fxsave( struct _fpstate *buf ) { struct task_struct *tsk = current; clear_fpu( tsk ); @@ -389,7 +399,7 @@ if ( HAVE_HWFP ) { if ( cpu_has_fxsr ) { - err = restore_i387_fxsave( buf ); + err = restore_i387_fxsave( buf ); } else { err = restore_i387_fsave( buf ); } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/io_apic.c linux.21pre3-ac4/arch/i386/kernel/io_apic.c --- linux.21pre3/arch/i386/kernel/io_apic.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/io_apic.c 2003-01-08 15:28:24.000000000 +0000 @@ -188,6 +188,86 @@ clear_IO_APIC_pin(apic, pin); } +static void set_ioapic_affinity (unsigned int irq, unsigned long mask) +{ + unsigned long flags; + + /* + * Only the first 8 bits are valid. + */ + mask = mask << 24; + spin_lock_irqsave(&ioapic_lock, flags); + __DO_ACTION(1, = mask, ) + spin_unlock_irqrestore(&ioapic_lock, flags); +} + +#if CONFIG_SMP + +typedef struct { + unsigned int cpu; + unsigned long timestamp; +} ____cacheline_aligned irq_balance_t; + +static irq_balance_t irq_balance[NR_IRQS] __cacheline_aligned + = { [ 0 ... NR_IRQS-1 ] = { 0, 0 } }; + +extern unsigned long irq_affinity [NR_IRQS]; + +#endif + +#define IDLE_ENOUGH(cpu,now) \ + (idle_cpu(cpu) && ((now) - irq_stat[(cpu)].idle_timestamp > 1)) + +#define IRQ_ALLOWED(cpu,allowed_mask) \ + ((1 << cpu) & (allowed_mask)) + +static unsigned long move(int curr_cpu, unsigned long allowed_mask, unsigned long now, int direction) +{ + int search_idle = 1; + int cpu = curr_cpu; + + goto inside; + + do { + if (unlikely(cpu == curr_cpu)) + search_idle = 0; +inside: + if (direction == 1) { + cpu++; + if (cpu >= smp_num_cpus) + cpu = 0; + } else { + cpu--; + if (cpu == -1) + cpu = smp_num_cpus-1; + } + } while (!IRQ_ALLOWED(cpu,allowed_mask) || + (search_idle && !IDLE_ENOUGH(cpu,now))); + + return cpu; +} + +static inline void balance_irq(int irq) +{ +#if CONFIG_SMP + irq_balance_t *entry = irq_balance + irq; + unsigned long now = jiffies; + + if (unlikely(entry->timestamp != now)) { + unsigned long allowed_mask; + int random_number; + + rdtscl(random_number); + random_number &= 1; + + allowed_mask = cpu_online_map & irq_affinity[irq]; + entry->timestamp = now; + entry->cpu = move(entry->cpu, allowed_mask, now, random_number); + set_ioapic_affinity(irq, apicid_to_phys_cpu_present(entry->cpu)); + } +#endif +} + /* * support for broken MP BIOSs, enables hand-redirection of PIRQ0-7 to * specific CPU-side IRQs. @@ -292,7 +372,7 @@ Dprintk("querying PCI -> IRQ mapping bus:%d, slot:%d, pin:%d.\n", bus, slot, pin); - if (mp_bus_id_to_pci_bus[bus] == -1) { + if ((mp_bus_id_to_pci_bus==NULL) || (mp_bus_id_to_pci_bus[bus] == -1)) { printk(KERN_WARNING "PCI BIOS passed nonexistent PCI bus %d!\n", bus); return -1; } @@ -739,8 +819,9 @@ void __init UNEXPECTED_IO_APIC(void) { - printk(KERN_WARNING " WARNING: unexpected IO-APIC, please mail\n"); - printk(KERN_WARNING " to linux-smp@vger.kernel.org\n"); + printk(KERN_WARNING + "An unexpected IO-APIC was found. If this kernel release is less than\n" + "three months old please report this to linux-smp@vger.kernel.org\n"); } void __init print_IO_APIC(void) @@ -793,6 +874,7 @@ printk(KERN_DEBUG "....... : PRQ implemented: %X\n", reg_01.PRQ); printk(KERN_DEBUG "....... : IO APIC version: %04X\n", reg_01.version); if ( (reg_01.version != 0x01) && /* 82489DX IO-APICs */ + (reg_01.version != 0x02) && /* VIA */ (reg_01.version != 0x10) && /* oldest IO-APICs */ (reg_01.version != 0x11) && /* Pentium/Pro IO-APICs */ (reg_01.version != 0x13) && /* Xeon IO-APICs */ @@ -1216,6 +1298,7 @@ */ static void ack_edge_ioapic_irq(unsigned int irq) { + balance_irq(irq); if ((irq_desc[irq].status & (IRQ_PENDING | IRQ_DISABLED)) == (IRQ_PENDING | IRQ_DISABLED)) mask_IO_APIC_irq(irq); @@ -1255,6 +1338,7 @@ unsigned long v; int i; + balance_irq(irq); /* * It appears there is an erratum which affects at least version 0x11 * of I/O APIC (that's the 82093AA and cores integrated into various @@ -1311,19 +1395,6 @@ static void mask_and_ack_level_ioapic_irq (unsigned int irq) { /* nothing */ } -static void set_ioapic_affinity (unsigned int irq, unsigned long mask) -{ - unsigned long flags; - /* - * Only the first 8 bits are valid. - */ - mask = mask << 24; - - spin_lock_irqsave(&ioapic_lock, flags); - __DO_ACTION(1, = mask, ) - spin_unlock_irqrestore(&ioapic_lock, flags); -} - /* * Level and edge triggered IO-APIC interrupts need different handling, * so we use two separate IRQ descriptors. Edge triggered IRQs can be diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/irq.c linux.21pre3-ac4/arch/i386/kernel/irq.c --- linux.21pre3/arch/i386/kernel/irq.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/irq.c 2003-01-06 21:42:11.000000000 +0000 @@ -1090,7 +1090,7 @@ static struct proc_dir_entry * smp_affinity_entry [NR_IRQS]; -static unsigned long irq_affinity [NR_IRQS] = { [0 ... NR_IRQS-1] = ~0UL }; +unsigned long irq_affinity [NR_IRQS] = { [0 ... NR_IRQS-1] = ~0UL }; static int irq_affinity_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data) { diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/ldt.c linux.21pre3-ac4/arch/i386/kernel/ldt.c --- linux.21pre3/arch/i386/kernel/ldt.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/ldt.c 2003-01-06 19:10:59.000000000 +0000 @@ -12,37 +12,139 @@ #include #include #include +#include #include #include #include #include +#ifdef CONFIG_SMP /* avoids "defined but not used" warnig */ +static void flush_ldt(void *mm) +{ + if (current->active_mm) + load_LDT(¤t->active_mm->context); +} +#endif + +static int alloc_ldt(mm_context_t *pc, int mincount, int reload) +{ + void *oldldt; + void *newldt; + int oldsize; + + if (mincount <= pc->size) + return 0; + oldsize = pc->size; + mincount = (mincount+511)&(~511); + if (mincount*LDT_ENTRY_SIZE > PAGE_SIZE) + newldt = vmalloc(mincount*LDT_ENTRY_SIZE); + else + newldt = kmalloc(mincount*LDT_ENTRY_SIZE, GFP_KERNEL); + + if (!newldt) + return -ENOMEM; + + if (oldsize) + memcpy(newldt, pc->ldt, oldsize*LDT_ENTRY_SIZE); + + oldldt = pc->ldt; + memset(newldt+oldsize*LDT_ENTRY_SIZE, 0, (mincount-oldsize)*LDT_ENTRY_SIZE); + wmb(); + pc->ldt = newldt; + pc->size = mincount; + if (reload) { + load_LDT(pc); +#ifdef CONFIG_SMP + if (current->mm->cpu_vm_mask != (1< PAGE_SIZE) + vfree(oldldt); + else + kfree(oldldt); + } + return 0; +} + +static inline int copy_ldt(mm_context_t *new, mm_context_t *old) +{ + int err = alloc_ldt(new, old->size, 0); + if (err < 0) { + printk(KERN_WARNING "ldt allocation failed\n"); + new->size = 0; + return err; + } + memcpy(new->ldt, old->ldt, old->size*LDT_ENTRY_SIZE); + return 0; +} + +/* + * we do not have to muck with descriptors here, that is + * done in switch_mm() as needed. + */ +int init_new_context(struct task_struct *tsk, struct mm_struct *mm) +{ + struct mm_struct * old_mm; + int retval = 0; + + init_MUTEX(&mm->context.sem); + mm->context.size = 0; + old_mm = current->mm; + if (old_mm && old_mm->context.size > 0) { + down(&old_mm->context.sem); + retval = copy_ldt(&mm->context, &old_mm->context); + up(&old_mm->context.sem); + } + return retval; +} + /* - * read_ldt() is not really atomic - this is not a problem since - * synchronization of reads and writes done to the LDT has to be - * assured by user-space anyway. Writes are atomic, to protect - * the security checks done on new descriptors. + * No need to lock the MM as we are the last user + * Do not touch the ldt register, we are already + * in the next thread. */ +void destroy_context(struct mm_struct *mm) +{ + if (mm->context.size) { + if (mm->context.size*LDT_ENTRY_SIZE > PAGE_SIZE) + vfree(mm->context.ldt); + else + kfree(mm->context.ldt); + mm->context.size = 0; + } +} + static int read_ldt(void * ptr, unsigned long bytecount) { int err; unsigned long size; struct mm_struct * mm = current->mm; - err = 0; - if (!mm->context.segments) - goto out; + if (!mm->context.size) + return 0; + if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES) + bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES; - size = LDT_ENTRIES*LDT_ENTRY_SIZE; + down(&mm->context.sem); + size = mm->context.size*LDT_ENTRY_SIZE; if (size > bytecount) size = bytecount; - err = size; - if (copy_to_user(ptr, mm->context.segments, size)) + err = 0; + if (copy_to_user(ptr, mm->context.ldt, size)) err = -EFAULT; -out: - return err; + up(&mm->context.sem); + if (err < 0) + return err; + if (size != bytecount) { + /* zero-fill the rest */ + clear_user(ptr+size, bytecount-size); + } + return bytecount; } static int read_default_ldt(void * ptr, unsigned long bytecount) @@ -53,7 +155,7 @@ err = 0; address = &default_ldt[0]; - size = sizeof(struct desc_struct); + size = 5*sizeof(struct desc_struct); if (size > bytecount) size = bytecount; @@ -88,24 +190,14 @@ goto out; } - /* - * the GDT index of the LDT is allocated dynamically, and is - * limited by MAX_LDT_DESCRIPTORS. - */ - down_write(&mm->mmap_sem); - if (!mm->context.segments) { - void * segments = vmalloc(LDT_ENTRIES*LDT_ENTRY_SIZE); - error = -ENOMEM; - if (!segments) + down(&mm->context.sem); + if (ldt_info.entry_number >= mm->context.size) { + error = alloc_ldt(¤t->mm->context, ldt_info.entry_number+1, 1); + if (error < 0) goto out_unlock; - memset(segments, 0, LDT_ENTRIES*LDT_ENTRY_SIZE); - wmb(); - mm->context.segments = segments; - mm->context.cpuvalid = 1UL << smp_processor_id(); - load_LDT(mm); } - lp = (__u32 *) ((ldt_info.entry_number << 3) + (char *) mm->context.segments); + lp = (__u32 *) ((ldt_info.entry_number << 3) + (char *) mm->context.ldt); /* Allow LDTs to be cleared by the user. */ if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { @@ -143,7 +235,7 @@ error = 0; out_unlock: - up_write(&mm->mmap_sem); + up(&mm->context.sem); out: return error; } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/longhaul.c linux.21pre3-ac4/arch/i386/kernel/longhaul.c --- linux.21pre3/arch/i386/kernel/longhaul.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/longhaul.c 2003-01-10 16:25:37.000000000 +0000 @@ -0,0 +1,813 @@ +/* + * $Id: longhaul.c,v 1.83 2003/01/02 22:16:26 db Exp $ + * + * (C) 2001 Dave Jones. + * (C) 2002 Padraig Brady. + * + * Licensed under the terms of the GNU GPL License version 2. + * Based upon datasheets & sample CPUs kindly provided by VIA. + * + * VIA have currently 3 different versions of Longhaul. + * + * +---------------------+----------+---------------------------------+ + * | Marketing name | Codename | longhaul version / features. | + * +---------------------+----------+---------------------------------+ + * | Samuel/CyrixIII | C5A | v1 : multipliers only | + * | Samuel2/C3 | C3E/C5B | v1 : multiplier only | + * | Ezra | C5C | v2 : multipliers & voltage | + * | Ezra-T | C5M/C5N | v3 : multipliers, voltage & FSB | + * +---------------------+----------+---------------------------------+ + * + * BIG FAT DISCLAIMER: Work in progress code. Possibly *dangerous* + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define DEBUG + +#ifdef DEBUG +#define dprintk(msg...) printk(msg) +#else +#define dprintk(msg...) do { } while(0); +#endif + +static int numscales=16, numvscales; +static int minvid, maxvid; +static int can_scale_voltage; +static int can_scale_fsb; +static int vrmrev; + + +/* Module parameters */ +static int dont_scale_voltage; +static int dont_scale_fsb; +static int current_fsb; + +#define __hlt() __asm__ __volatile__("hlt": : :"memory") + +/* + * Clock ratio tables. + * The eblcr ones specify the ratio read from the CPU. + * The clock_ratio ones specify what to write to the CPU. + */ + +/* VIA C3 Samuel 1 & Samuel 2 (stepping 0)*/ +static int __initdata longhaul1_clock_ratio[16] = { + -1, /* 0000 -> RESERVED */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + -1, /* 0011 -> RESERVED */ + -1, /* 0100 -> RESERVED */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + 55, /* 0111 -> 5.5x */ + 60, /* 1000 -> 6.0x */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 50, /* 1011 -> 5.0x */ + 65, /* 1100 -> 6.5x */ + 75, /* 1101 -> 7.5x */ + -1, /* 1110 -> RESERVED */ + -1, /* 1111 -> RESERVED */ +}; + +static int __initdata samuel1_eblcr[16] = { + 50, /* 0000 -> RESERVED */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + -1, /* 0011 -> RESERVED */ + 55, /* 0100 -> 5.5x */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + -1, /* 0111 -> RESERVED */ + -1, /* 1000 -> RESERVED */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 60, /* 1011 -> 6.0x */ + -1, /* 1100 -> RESERVED */ + 75, /* 1101 -> 7.5x */ + -1, /* 1110 -> RESERVED */ + 65, /* 1111 -> 6.5x */ +}; + +/* VIA C3 Samuel2 Stepping 1->15 & VIA C3 Ezra */ +static int __initdata longhaul2_clock_ratio[16] = { + 100, /* 0000 -> 10.0x */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + 90, /* 0011 -> 9.0x */ + 95, /* 0100 -> 9.5x */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + 55, /* 0111 -> 5.5x */ + 60, /* 1000 -> 6.0x */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 50, /* 1011 -> 5.0x */ + 65, /* 1100 -> 6.5x */ + 75, /* 1101 -> 7.5x */ + 85, /* 1110 -> 8.5x */ + 120, /* 1111 -> 12.0x */ +}; + +static int __initdata samuel2_eblcr[16] = { + 50, /* 0000 -> 5.0x */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + 100, /* 0011 -> 10.0x */ + 55, /* 0100 -> 5.5x */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + 110, /* 0111 -> 11.0x */ + 90, /* 1000 -> 9.0x */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 60, /* 1011 -> 6.0x */ + 120, /* 1100 -> 12.0x */ + 75, /* 1101 -> 7.5x */ + 130, /* 1110 -> 13.0x */ + 65, /* 1111 -> 6.5x */ +}; + +static int __initdata ezra_eblcr[16] = { + 50, /* 0000 -> 5.0x */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + 100, /* 0011 -> 10.0x */ + 55, /* 0100 -> 5.5x */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + 95, /* 0111 -> 9.5x */ + 90, /* 1000 -> 9.0x */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 60, /* 1011 -> 6.0x */ + 120, /* 1100 -> 12.0x */ + 75, /* 1101 -> 7.5x */ + 85, /* 1110 -> 8.5x */ + 65, /* 1111 -> 6.5x */ +}; + +/* VIA C5M. */ +static int __initdata longhaul3_clock_ratio[32] = { + 100, /* 0000 -> 10.0x */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + 90, /* 0011 -> 9.0x */ + 95, /* 0100 -> 9.5x */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + 55, /* 0111 -> 5.5x */ + 60, /* 1000 -> 6.0x */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 50, /* 1011 -> 5.0x */ + 65, /* 1100 -> 6.5x */ + 75, /* 1101 -> 7.5x */ + 85, /* 1110 -> 8.5x */ + 120, /* 1111 -> 12.0x */ + + -1, /* 0000 -> RESERVED (10.0x) */ + 110, /* 0001 -> 11.0x */ + 120, /* 0010 -> 12.0x */ + -1, /* 0011 -> RESERVED (9.0x)*/ + 105, /* 0100 -> 10.5x */ + 115, /* 0101 -> 11.5x */ + 125, /* 0110 -> 12.5x */ + 135, /* 0111 -> 13.5x */ + 140, /* 1000 -> 14.0x */ + 150, /* 1001 -> 15.0x */ + 160, /* 1010 -> 16.0x */ + 130, /* 1011 -> 13.0x */ + 145, /* 1100 -> 14.5x */ + 155, /* 1101 -> 15.5x */ + -1, /* 1110 -> RESERVED (13.0x) */ + -1, /* 1111 -> RESERVED (12.0x) */ +}; + +static int __initdata c5m_eblcr[32] = { + 50, /* 0000 -> 5.0x */ + 30, /* 0001 -> 3.0x */ + 40, /* 0010 -> 4.0x */ + 100, /* 0011 -> 10.0x */ + 55, /* 0100 -> 5.5x */ + 35, /* 0101 -> 3.5x */ + 45, /* 0110 -> 4.5x */ + 95, /* 0111 -> 9.5x */ + 90, /* 1000 -> 9.0x */ + 70, /* 1001 -> 7.0x */ + 80, /* 1010 -> 8.0x */ + 60, /* 1011 -> 6.0x */ + 120, /* 1100 -> 12.0x */ + 75, /* 1101 -> 7.5x */ + 85, /* 1110 -> 8.5x */ + 65, /* 1111 -> 6.5x */ + + -1, /* 0000 -> RESERVED (9.0x) */ + 110, /* 0001 -> 11.0x */ + 120, /* 0010 -> 12.0x */ + -1, /* 0011 -> RESERVED (10.0x)*/ + 135, /* 0100 -> 13.5x */ + 115, /* 0101 -> 11.5x */ + 125, /* 0110 -> 12.5x */ + 105, /* 0111 -> 10.5x */ + 130, /* 1000 -> 13.0x */ + 150, /* 1001 -> 15.0x */ + 160, /* 1010 -> 16.0x */ + 140, /* 1011 -> 14.0x */ + -1, /* 1100 -> RESERVED (12.0x) */ + 155, /* 1101 -> 15.5x */ + -1, /* 1110 -> RESERVED (13.0x) */ + 145, /* 1111 -> 14.5x */ +}; + +/* fsb values as defined in CPU */ +static unsigned int eblcr_fsb_table[] = { 66, 133, 100, -1 }; +/* fsb values to favour low fsb speed (lower power) */ +static unsigned int power_fsb_table[] = { 66, 100, 133, -1 }; +/* fsb values to favour high fsb speed (for e.g. if lowering CPU + freq because of heat, but want to maintain highest performance possible) */ +static unsigned int perf_fsb_table[] = { 133, 100, 66, -1 }; +static unsigned int *fsb_search_table; + +/* Voltage scales. Div by 1000 to get actual voltage. */ +static int __initdata vrm85scales[32] = { + 1250, 1200, 1150, 1100, 1050, 1800, 1750, 1700, + 1650, 1600, 1550, 1500, 1450, 1400, 1350, 1300, + 1275, 1225, 1175, 1125, 1075, 1825, 1775, 1725, + 1675, 1625, 1575, 1525, 1475, 1425, 1375, 1325, +}; + +static int __initdata mobilevrmscales[32] = { + 2000, 1950, 1900, 1850, 1800, 1750, 1700, 1650, + 1600, 1550, 1500, 1450, 1500, 1350, 1300, -1, + 1275, 1250, 1225, 1200, 1175, 1150, 1125, 1100, + 1075, 1050, 1025, 1000, 975, 950, 925, -1, +}; + +/* Clock ratios multiplied by 10 */ +static int clock_ratio[32]; +static int eblcr_table[32]; +static int voltage_table[32]; +static int highest_speed, lowest_speed; /* kHz */ +static int longhaul; /* version. */ +static struct cpufreq_driver *longhaul_driver; + + +static int longhaul_get_cpu_fsb (void) +{ + unsigned long invalue=0,lo, hi; + + if (current_fsb == 0) { + rdmsr (MSR_IA32_EBL_CR_POWERON, lo, hi); + invalue = (lo & (1<<18|1<<19)) >>18; + return eblcr_fsb_table[invalue]; + } else { + return current_fsb; + } +} + + +static int longhaul_get_cpu_mult (void) +{ + unsigned long invalue=0,lo, hi; + + rdmsr (MSR_IA32_EBL_CR_POWERON, lo, hi); + invalue = (lo & (1<<22|1<<23|1<<24|1<<25)) >>22; + if (longhaul==3) { + if (lo & (1<<27)) + invalue+=16; + } + return eblcr_table[invalue]; +} + + +/** + * longhaul_set_cpu_frequency() + * @clock_ratio_index : index of clock_ratio[] for new frequency + * @newfsb: the new FSB + * + * Sets a new clock ratio, and -if applicable- a new Front Side Bus + */ + +static void longhaul_setstate (unsigned int clock_ratio_index, unsigned int newfsb) +{ + unsigned long lo, hi; + unsigned int bits; + int revkey; + int vidindex, i; + struct cpufreq_freqs freqs; + + if (!newfsb || (clock_ratio[clock_ratio_index] == -1)) + return; + + if ((!can_scale_fsb) && (newfsb != current_fsb)) + return; + + if (((clock_ratio[clock_ratio_index] * newfsb * 100) > highest_speed) || + ((clock_ratio[clock_ratio_index] * newfsb * 100) < lowest_speed)) + return; + + freqs.old = longhaul_get_cpu_mult() * longhaul_get_cpu_fsb() * 100; + freqs.new = clock_ratio[clock_ratio_index] * newfsb * 100; + freqs.cpu = 0; /* longhaul.c is UP only driver */ + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + + dprintk (KERN_INFO "longhaul: New FSB:%d Mult(x10):%d\n", + newfsb, clock_ratio[clock_ratio_index]); + + bits = clock_ratio_index; + /* "bits" contains the bitpattern of the new multiplier. + we now need to transform it to the desired format. */ + + switch (longhaul) { + case 1: + rdmsr (MSR_VIA_BCR2, lo, hi); + revkey = (lo & 0xf)<<4; /* Rev key. */ + lo &= ~(1<<23|1<<24|1<<25|1<<26); + lo |= (1<<19); /* Enable software clock multiplier */ + lo |= (bits<<23); /* desired multiplier */ + lo |= revkey; + wrmsr (MSR_VIA_BCR2, lo, hi); + + __hlt(); + + /* Disable software clock multiplier */ + rdmsr (MSR_VIA_BCR2, lo, hi); + lo &= ~(1<<19); + lo |= revkey; + wrmsr (MSR_VIA_BCR2, lo, hi); + break; + + case 2: + rdmsr (MSR_VIA_LONGHAUL, lo, hi); + revkey = (lo & 0xf)<<4; /* Rev key. */ + lo &= 0xfff0bf0f; /* reset [19:16,14](bus ratio) and [7:4](rev key) to 0 */ + lo |= (bits<<16); + lo |= (1<<8); /* EnableSoftBusRatio */ + lo |= revkey; + + if (can_scale_voltage) { + if (can_scale_fsb==1) { + dprintk (KERN_INFO "longhaul: Voltage scaling + FSB scaling not done yet.\n"); + goto bad_voltage; + } else { + /* PB: TODO fix this up */ + vidindex = (((highest_speed-lowest_speed) / (newfsb/2)) - + ((highest_speed-((clock_ratio[clock_ratio_index] * newfsb * 100)/1000)) / (newfsb/2))); + } + for (i=0;i<32;i++) { + dprintk (KERN_INFO "VID hunting. Looking for %d, found %d\n", + minvid+(vidindex*25), voltage_table[i]); + if (voltage_table[i]==(minvid + (vidindex * 25))) + break; + } + if (i==32) + goto bad_voltage; + + dprintk (KERN_INFO "longhaul: Desired vid index=%d\n", i); +#if 0 + lo &= 0xfe0fffff;/* reset [24:20](voltage) to 0 */ + lo |= (i<<20); /* set voltage */ + lo |= (1<<9); /* EnableSoftVID */ +#endif + } + +bad_voltage: + wrmsr (MSR_VIA_LONGHAUL, lo, hi); + __hlt(); + + rdmsr (MSR_VIA_LONGHAUL, lo, hi); + lo &= ~(1<<8); + if (can_scale_voltage) + lo &= ~(1<<9); + lo |= revkey; + wrmsr (MSR_VIA_LONGHAUL, lo, hi); + break; + + case 3: + rdmsr (MSR_VIA_LONGHAUL, lo, hi); + revkey = (lo & 0xf)<<4; /* Rev key. */ + lo &= 0xfff0bf0f; /* reset longhaul[19:16,14] to 0 */ + lo |= (bits<<16); + lo |= (1<<8); /* EnableSoftBusRatio */ + lo |= revkey; + + /* Set FSB */ + if (can_scale_fsb==1) { + lo &= ~(1<<28|1<<29); + switch (newfsb) { + case 66: lo |= (1<<28|1<<29); /* 11 */ + break; + case 100: lo |= 1<<28; /* 01 */ + break; + case 133: break; /* 00*/ + } + } + wrmsr (MSR_VIA_LONGHAUL, lo, hi); + __hlt(); + + rdmsr (MSR_VIA_LONGHAUL, lo, hi); + lo &= ~(1<<8); + lo |= revkey; + wrmsr (MSR_VIA_LONGHAUL, lo, hi); + break; + } + + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); +} + + +static void __init longhaul_get_ranges (void) +{ + unsigned long lo, hi, invalue; + unsigned int minmult=0, maxmult=0, minfsb=0, maxfsb=0; + unsigned int multipliers[32]= { + 50,30,40,100,55,35,45,95,90,70,80,60,120,75,85,65, + -1,110,120,-1,135,115,125,105,130,150,160,140,-1,155,-1,145 }; + unsigned int fsb_table[4] = { 133, 100, -1, 66 }; + + switch (longhaul) { + case 1: + /* Ugh, Longhaul v1 didn't have the min/max MSRs. + Assume min=3.0x & max = whatever we booted at. */ + minmult = 30; + maxmult = longhaul_get_cpu_mult(); + minfsb = maxfsb = current_fsb; + break; + + case 2 ... 3: + rdmsr (MSR_VIA_LONGHAUL, lo, hi); + + invalue = (hi & (1<<0|1<<1|1<<2|1<<3)); + if (hi & (1<<11)) + invalue += 16; + maxmult=multipliers[invalue]; + +#if 0 /* This is MaxMhz @ Min Voltage. Ignore for now */ + invalue = (hi & (1<<16|1<<17|1<<18|1<<19)) >> 16; + if (hi & (1<<27)) + invalue += 16; + minmult = multipliers[invalue]; +#else + minmult = 30; /* as per spec */ +#endif + + if (can_scale_fsb==1) { + invalue = (hi & (1<<9|1<<10)) >> 9; + maxfsb = fsb_table[invalue]; + + invalue = (hi & (1<<25|1<<26)) >> 25; + minfsb = fsb_table[invalue]; + + dprintk (KERN_INFO "longhaul: Min FSB=%d Max FSB=%d\n", + minfsb, maxfsb); + } else { + minfsb = maxfsb = current_fsb; + } + break; + } + + highest_speed = maxmult * maxfsb * 100; + lowest_speed = minmult * minfsb * 100; + + dprintk (KERN_INFO "longhaul: MinMult(x10)=%d MaxMult(x10)=%d\n", + minmult, maxmult); + dprintk (KERN_INFO "longhaul: Lowestspeed=%d Highestspeed=%d\n", + lowest_speed, highest_speed); +} + + +static void __init longhaul_setup_voltagescaling (unsigned long lo, unsigned long hi) +{ + int revkey; + + can_scale_voltage = 1; + + minvid = (hi & (1<<20|1<<21|1<<22|1<<23|1<<24)) >> 20; /* 56:52 */ + maxvid = (hi & (1<<4|1<<5|1<<6|1<<7|1<<8)) >> 4; /* 40:36 */ + vrmrev = (lo & (1<<15))>>15; + + if (vrmrev==0) { + dprintk (KERN_INFO "longhaul: VRM 8.5 : "); + memcpy (voltage_table, vrm85scales, sizeof(voltage_table)); + numvscales = (voltage_table[maxvid]-voltage_table[minvid])/25; + } else { + dprintk (KERN_INFO "longhaul: Mobile VRM : "); + memcpy (voltage_table, mobilevrmscales, sizeof(voltage_table)); + numvscales = (voltage_table[maxvid]-voltage_table[minvid])/5; + } + + /* Current voltage isn't readable at first, so we need to + set it to a known value. The spec says to use maxvid */ + revkey = (lo & 0xf)<<4; /* Rev key. */ + lo &= 0xfe0fff0f; /* Mask unneeded bits */ + lo |= (1<<9); /* EnableSoftVID */ + lo |= revkey; /* Reinsert key */ + lo |= maxvid << 20; + wrmsr (MSR_VIA_LONGHAUL, lo, hi); + minvid = voltage_table[minvid]; + maxvid = voltage_table[maxvid]; + dprintk ("Min VID=%d.%03d Max VID=%d.%03d, %d possible voltage scales\n", + maxvid/1000, maxvid%1000, minvid/1000, minvid%1000, numvscales); +} + + +static inline unsigned int longhaul_statecount_fsb(struct cpufreq_policy *policy, unsigned int fsb) { + unsigned int i, count = 0; + + for(i=0; imax) && + ((clock_ratio[i] * fsb * 100) >= policy->min)) + count++; + } + + return count; +} + + +static int longhaul_verify(struct cpufreq_policy *policy) +{ + unsigned int number_states = 0; + unsigned int i; + unsigned int fsb_index = 0; + unsigned int tmpfreq = 0; + unsigned int newmax = -1; + + if (!policy || !longhaul_driver) + return -EINVAL; + + policy->cpu = 0; + cpufreq_verify_within_limits(policy, lowest_speed, highest_speed); + + if (can_scale_fsb==1) { + for (fsb_index=0; fsb_search_table[fsb_index]!=-1; fsb_index++) + number_states += longhaul_statecount_fsb(policy, fsb_search_table[fsb_index]); + } else + number_states = longhaul_statecount_fsb(policy, current_fsb); + + if (number_states) + return 0; + + /* get frequency closest above current policy->max */ + if (can_scale_fsb==1) { + for (fsb_index=0; fsb_search_table[fsb_index] != -1; fsb_index++) + for(i=0; i policy->max) && + (tmpfreq < newmax)) + newmax = tmpfreq; + } + } else { + for(i=0; i policy->max) && + (tmpfreq < newmax)) + newmax = tmpfreq; + } + } + + policy->max = newmax; + + cpufreq_verify_within_limits(policy, lowest_speed, highest_speed); + + return 0; +} + + +static int longhaul_get_best_freq_for_fsb(struct cpufreq_policy *policy, + unsigned int min_mult, + unsigned int max_mult, + unsigned int fsb, + unsigned int *new_mult) +{ + unsigned int optimal = 0; + unsigned int found_optimal = 0; + unsigned int i; + + switch(policy->policy) { + case CPUFREQ_POLICY_POWERSAVE: + optimal = max_mult; + break; + case CPUFREQ_POLICY_PERFORMANCE: + optimal = min_mult; + } + + for(i=0; i policy->max) || + (freq < policy->min)) + continue; + switch(policy->policy) { + case CPUFREQ_POLICY_POWERSAVE: + if (clock_ratio[i] < clock_ratio[optimal]) { + found_optimal = 1; + optimal = i; + } + break; + case CPUFREQ_POLICY_PERFORMANCE: + if (clock_ratio[i] > clock_ratio[optimal]) { + found_optimal = 1; + optimal = i; + } + break; + } + } + + if (found_optimal) { + *new_mult = optimal; + return 1; + } + return 0; +} + + +static int longhaul_setpolicy (struct cpufreq_policy *policy) +{ + unsigned int i; + unsigned int fsb_index = 0; + unsigned int new_fsb = 0; + unsigned int new_clock_ratio = 0; + unsigned int min_mult = 0; + unsigned int max_mult = 0; + + + if (!longhaul_driver) + return -EINVAL; + + if (policy->policy==CPUFREQ_POLICY_PERFORMANCE) + fsb_search_table = perf_fsb_table; + else + fsb_search_table = power_fsb_table; + + for(i=0;i clock_ratio[i]) + min_mult = i; + } + + if (can_scale_fsb==1) { + unsigned int found = 0; + for (fsb_index=0; fsb_search_table[fsb_index]!=-1; fsb_index++) + { + if (longhaul_get_best_freq_for_fsb(policy, + min_mult, max_mult, + fsb_search_table[fsb_index], + &new_clock_ratio)) { + new_fsb = fsb_search_table[fsb_index]; + break; + } + } + if (!found) + return -EINVAL; + } else { + new_fsb = current_fsb; + if (!longhaul_get_best_freq_for_fsb(policy, min_mult, + max_mult, new_fsb, &new_clock_ratio)) + return -EINVAL; + } + + longhaul_setstate(new_clock_ratio, new_fsb); + + return 0; +} + + +static int __init longhaul_init (void) +{ + struct cpuinfo_x86 *c = cpu_data; + unsigned int currentspeed; + static int currentmult; + unsigned long lo, hi; + int ret; + struct cpufreq_driver *driver; + + if ((c->x86_vendor != X86_VENDOR_CENTAUR) || (c->x86 !=6) ) + return -ENODEV; + + switch (c->x86_model) { + case 6: /* VIA C3 Samuel C5A */ + longhaul=1; + memcpy (clock_ratio, longhaul1_clock_ratio, sizeof(longhaul1_clock_ratio)); + memcpy (eblcr_table, samuel1_eblcr, sizeof(samuel1_eblcr)); + break; + + case 7: /* C5B / C5C */ + switch (c->x86_mask) { + case 0: + longhaul=1; + memcpy (clock_ratio, longhaul1_clock_ratio, sizeof(longhaul1_clock_ratio)); + memcpy (eblcr_table, samuel2_eblcr, sizeof(samuel2_eblcr)); + break; + case 1 ... 15: + longhaul=2; + memcpy (clock_ratio, longhaul2_clock_ratio, sizeof(longhaul2_clock_ratio)); + memcpy (eblcr_table, ezra_eblcr, sizeof(ezra_eblcr)); + break; + } + break; + + case 8: /* C5M/C5N */ + return -ENODEV; // Waiting on updated docs from VIA before this is usable + longhaul=3; + numscales=32; + memcpy (clock_ratio, longhaul3_clock_ratio, sizeof(longhaul3_clock_ratio)); + memcpy (eblcr_table, c5m_eblcr, sizeof(c5m_eblcr)); + break; + + default: + printk (KERN_INFO "longhaul: Unknown VIA CPU. Contact davej@suse.de\n"); + return -ENODEV; + } + + printk (KERN_INFO "longhaul: VIA CPU detected. Longhaul version %d supported\n", longhaul); + + current_fsb = longhaul_get_cpu_fsb(); + currentmult = longhaul_get_cpu_mult(); + currentspeed = currentmult * current_fsb * 100; + + dprintk (KERN_INFO "longhaul: CPU currently at %dMHz (%d x %d.%d)\n", + (currentspeed/1000), current_fsb, currentmult/10, currentmult%10); + + if (longhaul==2 || longhaul==3) { + rdmsr (MSR_VIA_LONGHAUL, lo, hi); + if ((lo & (1<<0)) && (dont_scale_voltage==0)) + longhaul_setup_voltagescaling (lo, hi); + + if ((lo & (1<<1)) && (dont_scale_fsb==0) && (current_fsb==0)) + can_scale_fsb = 1; + } + + longhaul_get_ranges(); + + driver = kmalloc(sizeof(struct cpufreq_driver) + + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (!driver) + return -ENOMEM; + + driver->policy = (struct cpufreq_policy *) (driver + 1); + +#ifdef CONFIG_CPU_FREQ_24_API + driver->cpu_cur_freq[0] = currentspeed; +#endif + + driver->verify = &longhaul_verify; + driver->setpolicy = &longhaul_setpolicy; + + driver->policy[0].cpu = 0; + driver->policy[0].min = (unsigned int) lowest_speed; + driver->policy[0].max = (unsigned int) highest_speed; + driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE; + driver->policy[0].cpuinfo.min_freq = (unsigned int) lowest_speed; + driver->policy[0].cpuinfo.max_freq = (unsigned int) highest_speed; + driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + + longhaul_driver = driver; + + ret = cpufreq_register(driver); + if (ret) { + longhaul_driver = NULL; + kfree(driver); + } + + return ret; +} + + +static void __exit longhaul_exit (void) +{ + if (longhaul_driver) { + cpufreq_unregister(); + kfree(longhaul_driver); + } +} + +MODULE_PARM (dont_scale_fsb, "i"); +MODULE_PARM (dont_scale_voltage, "i"); +MODULE_PARM (current_fsb, "i"); + +MODULE_AUTHOR ("Dave Jones "); +MODULE_DESCRIPTION ("Longhaul driver for VIA Cyrix processors."); +MODULE_LICENSE ("GPL"); + +module_init(longhaul_init); +module_exit(longhaul_exit); + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/longrun.c linux.21pre3-ac4/arch/i386/kernel/longrun.c --- linux.21pre3/arch/i386/kernel/longrun.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/longrun.c 2003-01-10 16:25:37.000000000 +0000 @@ -0,0 +1,292 @@ +/* + * $Id: longrun.c,v 1.18 2003/01/02 22:16:26 db Exp $ + * + * (C) 2002 Dominik Brodowski + * + * Licensed under the terms of the GNU GPL License version 2. + * + * BIG FAT DISCLAIMER: Work in progress code. Possibly *dangerous* + */ + +#include +#include +#include +#include +#include + +#include +#include +#include + +static struct cpufreq_driver *longrun_driver; + +/** + * longrun_{low,high}_freq is needed for the conversion of cpufreq kHz + * values into per cent values. In TMTA microcode, the following is valid: + * performance_pctg = (current_freq - low_freq)/(high_freq - low_freq) + */ +static unsigned int longrun_low_freq, longrun_high_freq; + + +/** + * longrun_get_policy - get the current LongRun policy + * @policy: struct cpufreq_policy where current policy is written into + * + * Reads the current LongRun policy by access to MSR_TMTA_LONGRUN_FLAGS + * and MSR_TMTA_LONGRUN_CTRL + */ +static void longrun_get_policy(struct cpufreq_policy *policy) +{ + u32 msr_lo, msr_hi; + + if (!longrun_driver) + return; + + rdmsr(MSR_TMTA_LONGRUN_FLAGS, msr_lo, msr_hi); + if (msr_lo & 0x01) + policy->policy = CPUFREQ_POLICY_PERFORMANCE; + else + policy->policy = CPUFREQ_POLICY_POWERSAVE; + + rdmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); + msr_lo &= 0x0000007F; + msr_hi &= 0x0000007F; + + policy->min = longrun_low_freq + msr_lo * + ((longrun_high_freq - longrun_low_freq) / 100); + policy->min = longrun_low_freq + msr_hi * + ((longrun_high_freq - longrun_low_freq) / 100); + policy->cpu = 0; +} + + +/** + * longrun_set_policy - sets a new CPUFreq policy + * @policy - new policy + * + * Sets a new CPUFreq policy on LongRun-capable processors. This function + * has to be called with cpufreq_driver locked. + */ +static int longrun_set_policy(struct cpufreq_policy *policy) +{ + u32 msr_lo, msr_hi; + u32 pctg_lo, pctg_hi; + + if (!longrun_driver || !policy) + return -EINVAL; + + pctg_lo = (policy->min - longrun_low_freq) / + ((longrun_high_freq - longrun_low_freq) / 100); + pctg_hi = (policy->max - longrun_low_freq) / + ((longrun_high_freq - longrun_low_freq) / 100); + + if (pctg_hi > 100) + pctg_hi = 100; + if (pctg_lo > pctg_hi) + pctg_lo = pctg_hi; + + /* performance or economy mode */ + rdmsr(MSR_TMTA_LONGRUN_FLAGS, msr_lo, msr_hi); + msr_lo &= 0xFFFFFFFE; + switch (policy->policy) { + case CPUFREQ_POLICY_PERFORMANCE: + msr_lo |= 0x00000001; + break; + case CPUFREQ_POLICY_POWERSAVE: + break; + } + wrmsr(MSR_TMTA_LONGRUN_FLAGS, msr_lo, msr_hi); + + /* lower and upper boundary */ + rdmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); + msr_lo &= 0xFFFFFF80; + msr_hi &= 0xFFFFFF80; + msr_lo |= pctg_lo; + msr_hi |= pctg_hi; + wrmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); + + return 0; +} + + +/** + * longrun_verify_poliy - verifies a new CPUFreq policy + * + * Validates a new CPUFreq policy. This function has to be called with + * cpufreq_driver locked. + */ +static int longrun_verify_policy(struct cpufreq_policy *policy) +{ + if (!policy || !longrun_driver) + return -EINVAL; + + policy->cpu = 0; + cpufreq_verify_within_limits(policy, + longrun_driver->policy[0].cpuinfo.min_freq, + longrun_driver->policy[0].cpuinfo.max_freq); + + return 0; +} + + +/** + * longrun_determine_freqs - determines the lowest and highest possible core frequency + * + * Determines the lowest and highest possible core frequencies on this CPU. + * This is neccessary to calculate the performance percentage according to + * TMTA rules: + * performance_pctg = (target_freq - low_freq)/(high_freq - low_freq) + */ +static unsigned int __init longrun_determine_freqs(unsigned int *low_freq, + unsigned int *high_freq) +{ + u32 msr_lo, msr_hi; + u32 save_lo, save_hi; + u32 eax, ebx, ecx, edx; + struct cpuinfo_x86 *c = cpu_data; + + if (!low_freq || !high_freq) + return -EINVAL; + + if (cpu_has(c, X86_FEATURE_LRTI)) { + /* if the LongRun Table Interface is present, the + * detection is a bit easier: + * For minimum frequency, read out the maximum + * level (msr_hi), write that into "currently + * selected level", and read out the frequency. + * For maximum frequency, read out level zero. + */ + /* minimum */ + rdmsr(MSR_TMTA_LRTI_READOUT, msr_lo, msr_hi); + wrmsr(MSR_TMTA_LRTI_READOUT, msr_hi, msr_hi); + rdmsr(MSR_TMTA_LRTI_VOLT_MHZ, msr_lo, msr_hi); + *low_freq = msr_lo * 1000; /* to kHz */ + + /* maximum */ + wrmsr(MSR_TMTA_LRTI_READOUT, 0, msr_hi); + rdmsr(MSR_TMTA_LRTI_VOLT_MHZ, msr_lo, msr_hi); + *high_freq = msr_lo * 1000; /* to kHz */ + + if (*low_freq > *high_freq) + *low_freq = *high_freq; + return 0; + } + + /* set the upper border to the value determined during TSC init */ + *high_freq = (cpu_khz / 1000); + *high_freq = *high_freq * 1000; + + /* get current borders */ + rdmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); + save_lo = msr_lo & 0x0000007F; + save_hi = msr_hi & 0x0000007F; + + /* if current perf_pctg is larger than 90%, we need to decrease the + * upper limit to make the calculation more accurate. + */ + cpuid(0x80860007, &eax, &ebx, &ecx, &edx); + if (ecx > 90) { + /* set to 0 to 80 perf_pctg */ + msr_lo &= 0xFFFFFF80; + msr_hi &= 0xFFFFFF80; + msr_lo |= 0; + msr_hi |= 80; + wrmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); + + /* read out current core MHz and current perf_pctg */ + cpuid(0x80860007, &eax, &ebx, &ecx, &edx); + + /* restore values */ + wrmsr(MSR_TMTA_LONGRUN_CTRL, save_lo, save_hi); + } + + /* performance_pctg = (current_freq - low_freq)/(high_freq - low_freq) + * eqals + * low_freq * ( 1 - perf_pctg) = (cur_freq - high_freq * perf_pctg) + * + * high_freq * perf_pctg is stored tempoarily into "ebx". + */ + ebx = (((cpu_khz / 1000) * ecx) / 100); /* to MHz */ + + if ((ecx > 95) || (ecx == 0) || (eax < ebx)) + return -EIO; + + edx = (eax - ebx) / (100 - ecx); + *low_freq = edx * 1000; /* back to kHz */ + + if (*low_freq > *high_freq) + *low_freq = *high_freq; + + return 0; +} + + +/** + * longrun_init - initializes the Transmeta Crusoe LongRun CPUFreq driver + * + * Initializes the LongRun support. + */ +static int __init longrun_init(void) +{ + int result; + struct cpufreq_driver *driver; + struct cpuinfo_x86 *c = cpu_data; + + if (c->x86_vendor != X86_VENDOR_TRANSMETA || + !cpu_has(c, X86_FEATURE_LONGRUN)) + return 0; + + /* initialization of main "cpufreq" code*/ + driver = kmalloc(sizeof(struct cpufreq_driver) + + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (!driver) + return -ENOMEM; + + driver->policy = (struct cpufreq_policy *) (driver + 1); + + if (longrun_determine_freqs(&longrun_low_freq, &longrun_high_freq)) { + kfree(driver); + return -EIO; + } + driver->policy[0].cpuinfo.min_freq = longrun_low_freq; + driver->policy[0].cpuinfo.max_freq = longrun_high_freq; + driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + + longrun_get_policy(&driver->policy[0]); + +#ifdef CONFIG_CPU_FREQ_24_API + driver->cpu_cur_freq[0] = longrun_high_freq; /* dummy value */ +#endif + + driver->verify = &longrun_verify_policy; + driver->setpolicy = &longrun_set_policy; + + longrun_driver = driver; + + result = cpufreq_register(driver); + if (result) { + longrun_driver = NULL; + kfree(driver); + } + + return result; +} + + +/** + * longrun_exit - unregisters LongRun support + */ +static void __exit longrun_exit(void) +{ + if (longrun_driver) { + cpufreq_unregister(); + kfree(longrun_driver); + } +} + + +MODULE_AUTHOR ("Dominik Brodowski "); +MODULE_DESCRIPTION ("LongRun driver for Transmeta Crusoe processors."); +MODULE_LICENSE ("GPL"); +module_init(longrun_init); +module_exit(longrun_exit); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/Makefile linux.21pre3-ac4/arch/i386/kernel/Makefile --- linux.21pre3/arch/i386/kernel/Makefile 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/Makefile 2003-01-10 16:26:51.000000000 +0000 @@ -40,5 +40,14 @@ obj-$(CONFIG_X86_LOCAL_APIC) += mpparse.o apic.o nmi.o obj-$(CONFIG_X86_IO_APIC) += io_apic.o acpitable.o obj-$(CONFIG_X86_VISWS_APIC) += visws_apic.o +obj-$(CONFIG_EDD) += edd.o +obj-$(CONFIG_X86_POWERNOW_K6) += powernow-k6.o +obj-$(CONFIG_X86_LONGHAUL) += longhaul.o +obj-$(CONFIG_X86_SPEEDSTEP) += speedstep.o +obj-$(CONFIG_X86_P4_CLOCKMOD) += p4-clockmod.o +obj-$(CONFIG_X86_LONGRUN) += longrun.o +obj-$(CONFIG_ELAN_CPUFREQ) += elanfreq.o +obj-$(CONFIG_X86_GX_SUSPMOD) += gx-suspmod.o + include $(TOPDIR)/Rules.make diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/mpparse.c linux.21pre3-ac4/arch/i386/kernel/mpparse.c --- linux.21pre3/arch/i386/kernel/mpparse.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/mpparse.c 2003-01-07 15:35:58.000000000 +0000 @@ -126,6 +126,8 @@ case 0x0F: if (model == 0x00) return("Pentium 4(tm)"); + if (model == 0x01) + return("Pentium 4(tm)"); if (model == 0x02) return("Pentium 4(tm) XEON(tm)"); if (model == 0x0F) @@ -891,18 +893,16 @@ * there is a real-mode segmented pointer pointing to the * 4K EBDA area at 0x40E, calculate and scan it here. * - * NOTE! There are Linux loaders that will corrupt the EBDA + * NOTE! There were Linux loaders that will corrupt the EBDA * area, and as such this kind of SMP config may be less * trustworthy, simply because the SMP table may have been - * stomped on during early boot. These loaders are buggy and - * should be fixed. + * stomped on during early boot. Thankfully the bootloaders + * now honour the EBDA. */ address = *(unsigned short *)phys_to_virt(0x40E); address <<= 4; smp_scan_config(address, 0x1000); - if (smp_found_config) - printk(KERN_WARNING "WARNING: MP table in the EBDA can be UNSAFE, contact linux-smp@vger.kernel.org if you experience SMP problems!\n"); } #else diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/mtrr.c linux.21pre3-ac4/arch/i386/kernel/mtrr.c --- linux.21pre3/arch/i386/kernel/mtrr.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/mtrr.c 2003-01-11 23:43:23.000000000 +0000 @@ -492,6 +492,14 @@ return 0; } } + /* Intel 450NX errata # 23. No ascending cachline evictions to + write combining memory may resulting in data corruption */ + dev = pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, NULL); + if(dev) + { + printk(KERN_INFO "mtrr: Intel 450NX MMC detected. Write-combining disabled.\n"); + return 0; + } switch ( mtrr_if ) { @@ -2143,7 +2151,7 @@ query the width (in bits) of the physical addressable memory on the Hammer family. */ - if (boot_cpu_data.x86 == 7 && (cpuid_eax(0x80000000) >= 0x80000008)) { + if (boot_cpu_data.x86 == 15 && (cpuid_eax(0x80000000) >= 0x80000008)) { u32 phys_addr; phys_addr = cpuid_eax(0x80000008) & 0xff ; size_or_mask = ~((1 << (phys_addr - PAGE_SHIFT)) - 1); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/nmi.c linux.21pre3-ac4/arch/i386/kernel/nmi.c --- linux.21pre3/arch/i386/kernel/nmi.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/nmi.c 2003-01-09 01:36:47.000000000 +0000 @@ -72,18 +72,21 @@ int __init check_nmi_watchdog (void) { - irq_cpustat_t tmp[NR_CPUS]; + unsigned int prev_nmi_count[NR_CPUS]; int j, cpu; printk(KERN_INFO "testing NMI watchdog ... "); - memcpy(tmp, irq_stat, sizeof(tmp)); + for (j = 0; j < smp_num_cpus; j++) { + cpu = cpu_logical_map(j); + prev_nmi_count[cpu] = irq_stat[cpu].__nmi_count; + } sti(); mdelay((10*1000)/nmi_hz); // wait 10 ticks for (j = 0; j < smp_num_cpus; j++) { cpu = cpu_logical_map(j); - if (nmi_count(cpu) - tmp[cpu].__nmi_count <= 5) { + if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { printk("CPU#%d: NMI appears to be stuck!\n", cpu); return -1; } @@ -119,7 +122,7 @@ nmi_watchdog = nmi; if ((nmi == NMI_LOCAL_APIC) && (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && - (boot_cpu_data.x86 == 6)) + (boot_cpu_data.x86 == 6 || boot_cpu_data.x86 == 15)) nmi_watchdog = nmi; /* * We can enable the IO-APIC watchdog @@ -278,7 +281,7 @@ { switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: - if (boot_cpu_data.x86 != 6) + if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15) return; setup_k7_watchdog(); break; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/p4-clockmod.c linux.21pre3-ac4/arch/i386/kernel/p4-clockmod.c --- linux.21pre3/arch/i386/kernel/p4-clockmod.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/p4-clockmod.c 2003-01-10 16:27:32.000000000 +0000 @@ -0,0 +1,287 @@ +/* + * Pentium 4/Xeon CPU on demand clock modulation/speed scaling + * (C) 2002 Zwane Mwaikambo + * (C) 2002 Arjan van de Ven + * (C) 2002 Tora T. Engstad + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * The author(s) of this software shall not be held liable for damages + * of any nature resulting due to the use of this software. This + * software is provided AS-IS with no warranties. + * + * Date Errata Description + * 20020525 N44, O17 12.5% or 25% DC causes lockup + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define PFX "cpufreq: " + +/* + * Duty Cycle (3bits), note DC_DISABLE is not specified in + * intel docs i just use it to mean disable + */ +enum { + DC_RESV, DC_DFLT, DC_25PT, DC_38PT, DC_50PT, + DC_64PT, DC_75PT, DC_88PT, DC_DISABLE +}; + +#define DC_ENTRIES 8 + + +static int has_N44_O17_errata; +static int stock_freq; +MODULE_PARM(stock_freq, "i"); + +static struct cpufreq_driver *cpufreq_p4_driver; + + +static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) +{ + u32 l, h; + unsigned long cpus_allowed; + struct cpufreq_freqs freqs; + int hyperthreading = 0; + int affected_cpu_map = 0; + int sibling = 0; + + if (!cpu_online(cpu) || (newstate > DC_DISABLE) || + (newstate == DC_RESV)) + return -EINVAL; + + /* switch to physical CPU where state is to be changed*/ + cpus_allowed = current->cpus_allowed; + + /* only run on CPU to be set, or on its sibling */ + affected_cpu_map = 1 << cpu; +#ifdef CONFIG_X86_HT + hyperthreading = ((cpu_has_ht) && (smp_num_siblings == 2)); + if (hyperthreading) { + sibling = cpu_sibling_map[cpu]; + affected_cpu_map |= (1 << sibling); + } +#endif + set_cpus_allowed(current, affected_cpu_map); + BUG_ON(!(affected_cpu_map & (1 << smp_processor_id()))); + + /* get current state */ + rdmsr(MSR_IA32_THERM_CONTROL, l, h); + if (l & 0x10) { + l = l >> 1; + l &= 0x7; + } else + l = DC_DISABLE; + + if (l == newstate) { + set_cpus_allowed(current, cpus_allowed); + return 0; + } else if (l == DC_RESV) { + printk(KERN_ERR PFX "BIG FAT WARNING: currently in invalid setting\n"); + } + + /* notifiers */ + freqs.old = stock_freq * l / 8; + freqs.new = stock_freq * newstate / 8; + freqs.cpu = cpu; + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + if (hyperthreading) { + freqs.cpu = sibling; + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + } + + rdmsr(MSR_IA32_THERM_STATUS, l, h); + if (l & 0x01) + printk(KERN_DEBUG PFX "CPU#%d currently thermal throttled\n", cpu); + + if (has_N44_O17_errata && (newstate == DC_25PT || newstate == DC_DFLT)) + newstate = DC_38PT; + + rdmsr(MSR_IA32_THERM_CONTROL, l, h); + if (newstate == DC_DISABLE) { + printk(KERN_INFO PFX "CPU#%d disabling modulation\n", cpu); + wrmsr(MSR_IA32_THERM_CONTROL, l & ~(1<<4), h); + } else { + printk(KERN_INFO PFX "CPU#%d setting duty cycle to %d%%\n", cpu, ((125 * newstate) / 10)); + /* bits 63 - 5 : reserved + * bit 4 : enable/disable + * bits 3-1 : duty cycle + * bit 0 : reserved + */ + l = (l & ~14); + l = l | (1<<4) | ((newstate & 0x7)<<1); + wrmsr(MSR_IA32_THERM_CONTROL, l, h); + } + + set_cpus_allowed(current, cpus_allowed); + + /* notifiers */ + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + if (hyperthreading) { + freqs.cpu = cpu; + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + } + + return 0; +} + + +static struct cpufreq_frequency_table p4clockmod_table[] = { + {DC_RESV, CPUFREQ_ENTRY_INVALID}, + {DC_DFLT, 0}, + {DC_25PT, 0}, + {DC_38PT, 0}, + {DC_50PT, 0}, + {DC_64PT, 0}, + {DC_75PT, 0}, + {DC_88PT, 0}, + {DC_DISABLE, 0}, + {DC_RESV, CPUFREQ_TABLE_END}, +}; + + +static int cpufreq_p4_setpolicy(struct cpufreq_policy *policy) +{ + unsigned int newstate = DC_RESV; + + if (cpufreq_frequency_table_setpolicy(policy, &p4clockmod_table[0], &newstate)) + return -EINVAL; + + cpufreq_p4_setdc(policy->cpu, newstate); + + return 0; +} + + +static int cpufreq_p4_verify(struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &p4clockmod_table[0]); +} + + +static int __init cpufreq_p4_init(void) +{ + struct cpuinfo_x86 *c = cpu_data; + int cpuid; + int ret; + struct cpufreq_driver *driver; + unsigned int i; + + /* + * THERM_CONTROL is architectural for IA32 now, so + * we can rely on the capability checks + */ + if (c->x86_vendor != X86_VENDOR_INTEL) + return -ENODEV; + + if (!test_bit(X86_FEATURE_ACPI, c->x86_capability) || + !test_bit(X86_FEATURE_ACC, c->x86_capability)) + return -ENODEV; + + /* Errata workarounds */ + cpuid = (c->x86 << 8) | (c->x86_model << 4) | c->x86_mask; + switch (cpuid) { + case 0x0f07: + case 0x0f0a: + case 0x0f11: + case 0x0f12: + has_N44_O17_errata = 1; + default: + break; + } + + printk(KERN_INFO PFX "P4/Xeon(TM) CPU On-Demand Clock Modulation available\n"); + + if (!stock_freq) { + if (cpu_khz) + stock_freq = cpu_khz; + else { + printk(KERN_INFO PFX "unknown core frequency - please use module parameter 'stock_freq'\n"); + return -EINVAL; + } + } + + driver = kmalloc(sizeof(struct cpufreq_driver) + + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (!driver) + return -ENOMEM; + + driver->policy = (struct cpufreq_policy *) (driver + 1); + + /* table init */ + for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) { + if ((i<2) && (has_N44_O17_errata)) + p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID; + else + p4clockmod_table[i].frequency = (stock_freq * i)/8; + } + + +#ifdef CONFIG_CPU_FREQ_24_API + for (i=0;icpu_cur_freq[i] = stock_freq; + } +#endif + + driver->verify = &cpufreq_p4_verify; + driver->setpolicy = &cpufreq_p4_setpolicy; + + for (i=0;ipolicy[i].cpu = i; + ret = cpufreq_frequency_table_cpuinfo(&driver->policy[i], &p4clockmod_table[0]); + if (ret) { + kfree(driver); + return ret; + } + driver->policy[i].policy = CPUFREQ_POLICY_PERFORMANCE; + driver->policy[i].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + } + + cpufreq_p4_driver = driver; + + ret = cpufreq_register(driver); + if (ret) { + cpufreq_p4_driver = NULL; + kfree(driver); + } + + return ret; +} + + +static void __exit cpufreq_p4_exit(void) +{ + unsigned int i; + + if (cpufreq_p4_driver) { + for (i=0; i"); +MODULE_DESCRIPTION ("cpufreq driver for Pentium(TM) 4/Xeon(TM)"); +MODULE_LICENSE ("GPL"); + +module_init(cpufreq_p4_init); +module_exit(cpufreq_p4_exit); + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/pci-dma.c linux.21pre3-ac4/arch/i386/kernel/pci-dma.c --- linux.21pre3/arch/i386/kernel/pci-dma.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/pci-dma.c 2003-01-06 16:22:34.000000000 +0000 @@ -19,7 +19,7 @@ void *ret; int gfp = GFP_ATOMIC; - if (hwdev == NULL || ((u32)hwdev->dma_mask < 0xffffffff)) + if (hwdev == NULL || hwdev->dma_mask < 0xffffffff) gfp |= GFP_DMA; ret = (void *)__get_free_pages(gfp, get_order(size)); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/powernow-k6.c linux.21pre3-ac4/arch/i386/kernel/powernow-k6.c --- linux.21pre3/arch/i386/kernel/powernow-k6.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/powernow-k6.c 2003-01-10 16:27:32.000000000 +0000 @@ -0,0 +1,237 @@ +/* + * $Id: powernow-k6.c,v 1.42 2003/01/02 22:41:08 db Exp $ + * This file was part of Powertweak Linux (http://powertweak.sf.net) + * and is shared with the Linux Kernel module. + * + * (C) 2000-2002 Dave Jones, Arjan van de Ven, Janne Pänkälä, Dominik Brodowski. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * BIG FAT DISCLAIMER: Work in progress code. Possibly *dangerous* + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include + + +#define POWERNOW_IOPORT 0xfff0 /* it doesn't matter where, as long + as it is unused */ + +static struct cpufreq_driver *powernow_driver; +static unsigned int busfreq; /* FSB, in 10 kHz */ +static unsigned int max_multiplier; + + +/* Clock ratio multiplied by 10 - see table 27 in AMD#23446 */ +static struct cpufreq_frequency_table clock_ratio[] = { + {45, /* 000 -> 4.5x */ 0}, + {50, /* 001 -> 5.0x */ 0}, + {40, /* 010 -> 4.0x */ 0}, + {55, /* 011 -> 5.5x */ 0}, + {20, /* 100 -> 2.0x */ 0}, + {30, /* 101 -> 3.0x */ 0}, + {60, /* 110 -> 6.0x */ 0}, + {35, /* 111 -> 3.5x */ 0}, + {0, CPUFREQ_TABLE_END} +}; + + +/** + * powernow_k6_get_cpu_multiplier - returns the current FSB multiplier + * + * Returns the current setting of the frequency multiplier. Core clock + * speed is frequency of the Front-Side Bus multiplied with this value. + */ +static int powernow_k6_get_cpu_multiplier(void) +{ + u64 invalue = 0; + u32 msrval; + + msrval = POWERNOW_IOPORT + 0x1; + wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */ + invalue=inl(POWERNOW_IOPORT + 0x8); + msrval = POWERNOW_IOPORT + 0x0; + wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */ + + return clock_ratio[(invalue >> 5)&7].index; +} + + +/** + * powernow_k6_set_state - set the PowerNow! multiplier + * @best_i: clock_ratio[best_i] is the target multiplier + * + * Tries to change the PowerNow! multiplier + */ +static void powernow_k6_set_state (unsigned int best_i) +{ + unsigned long outvalue=0, invalue=0; + unsigned long msrval; + struct cpufreq_freqs freqs; + + if (!powernow_driver) { + printk(KERN_ERR "cpufreq: initialization problem or invalid target frequency\n"); + return; + } + + freqs.old = busfreq * powernow_k6_get_cpu_multiplier(); + freqs.new = busfreq * clock_ratio[best_i].index; + freqs.cpu = 0; /* powernow-k6.c is UP only driver */ + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + + /* we now need to transform best_i to the BVC format, see AMD#23446 */ + + outvalue = (1<<12) | (1<<10) | (1<<9) | (best_i<<5); + + msrval = POWERNOW_IOPORT + 0x1; + wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */ + invalue=inl(POWERNOW_IOPORT + 0x8); + invalue = invalue & 0xf; + outvalue = outvalue | invalue; + outl(outvalue ,(POWERNOW_IOPORT + 0x8)); + msrval = POWERNOW_IOPORT + 0x0; + wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */ + + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + return; +} + + +/** + * powernow_k6_verify - verifies a new CPUfreq policy + * @policy: new policy + * + * Policy must be within lowest and highest possible CPU Frequency, + * and at least one possible state must be within min and max. + */ +static int powernow_k6_verify(struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &clock_ratio[0]); +} + + +/** + * powernow_k6_setpolicy - sets a new CPUFreq policy + * @policy - new policy + * + * sets a new CPUFreq policy + */ +static int powernow_k6_setpolicy (struct cpufreq_policy *policy) +{ + unsigned int newstate = 0; + + if (cpufreq_frequency_table_setpolicy(policy, &clock_ratio[0], &newstate)) + return -EINVAL; + + powernow_k6_set_state(newstate); + + return 0; +} + + +/** + * powernow_k6_init - initializes the k6 PowerNow! CPUFreq driver + * + * Initializes the K6 PowerNow! support. Returns -ENODEV on unsupported + * devices, -EINVAL or -ENOMEM on problems during initiatization, and zero + * on success. + */ +static int __init powernow_k6_init(void) +{ + struct cpuinfo_x86 *c = cpu_data; + struct cpufreq_driver *driver; + unsigned int result; + unsigned int i; + + if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) || + ((c->x86_model != 12) && (c->x86_model != 13))) + return -ENODEV; + + max_multiplier = powernow_k6_get_cpu_multiplier(); + busfreq = cpu_khz / max_multiplier; + + if (!request_region(POWERNOW_IOPORT, 16, "PowerNow!")) { + printk("cpufreq: PowerNow IOPORT region already used.\n"); + return -EIO; + } + + /* initialization of main "cpufreq" code*/ + driver = kmalloc(sizeof(struct cpufreq_driver) + + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (!driver) { + release_region (POWERNOW_IOPORT, 16); + return -ENOMEM; + } + driver->policy = (struct cpufreq_policy *) (driver + 1); + + /* table init */ + for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) { + if (clock_ratio[i].index > max_multiplier) + clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID; + else + clock_ratio[i].frequency = busfreq * clock_ratio[i].index; + } + + driver->verify = &powernow_k6_verify; + driver->setpolicy = &powernow_k6_setpolicy; + + /* cpuinfo and default policy values */ + driver->policy[0].cpu = 0; + driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE; +#ifdef CONFIG_CPU_FREQ_24_API + driver->cpu_cur_freq[0] = busfreq * max_multiplier; +#endif + result = cpufreq_frequency_table_cpuinfo(&driver->policy[0], &clock_ratio[0]); + if (result) { + kfree(driver); + return result; + } + + powernow_driver = driver; + + result = cpufreq_register(driver); + if (result) { + release_region (POWERNOW_IOPORT, 16); + powernow_driver = NULL; + kfree(driver); + } + + return result; +} + + +/** + * powernow_k6_exit - unregisters AMD K6-2+/3+ PowerNow! support + * + * Unregisters AMD K6-2+ / K6-3+ PowerNow! support. + */ +static void __exit powernow_k6_exit(void) +{ + unsigned int i; + + if (powernow_driver) { + for (i=0;i<8;i++) + if (clock_ratio[i].index == max_multiplier) + powernow_k6_set_state(i); + cpufreq_unregister(); + kfree(powernow_driver); + } +} + + +MODULE_AUTHOR ("Arjan van de Ven , Dave Jones , Dominik Brodowski "); +MODULE_DESCRIPTION ("PowerNow! driver for AMD K6-2+ / K6-3+ processors."); +MODULE_LICENSE ("GPL"); +module_init(powernow_k6_init); +module_exit(powernow_k6_exit); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/process.c linux.21pre3-ac4/arch/i386/kernel/process.c --- linux.21pre3/arch/i386/kernel/process.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/process.c 2003-01-06 19:12:06.000000000 +0000 @@ -124,15 +124,12 @@ void cpu_idle (void) { /* endless idle loop with no priority at all */ - init_idle(); - current->nice = 20; - current->counter = -100; while (1) { void (*idle)(void) = pm_idle; if (!idle) idle = default_idle; - while (!current->need_resched) + if (!current->need_resched) idle(); schedule(); check_pgt_cache(); @@ -187,7 +184,7 @@ } /* we will leave sorting out the final value when we are ready to reboot, since we might not - have set up boot_cpu_id or smp_num_cpu */ + have set up boot_cpu_physical_apicid or smp_num_cpu */ break; #endif } @@ -253,7 +250,7 @@ 0x66, 0x0f, 0x20, 0xc3, /* movl %cr0,%ebx */ 0x66, 0x81, 0xe3, 0x00, 0x00, 0x00, 0x60, /* andl $0x60000000,%ebx */ 0x74, 0x02, /* jz f */ - 0x0f, 0x08, /* invd */ + 0x0f, 0x09, /* wbinvd */ 0x24, 0x10, /* f: andb $0x10,al */ 0x66, 0x0f, 0x22, 0xc0 /* movl %eax,%cr0 */ }; @@ -466,23 +463,6 @@ } /* - * No need to lock the MM as we are the last user - */ -void release_segments(struct mm_struct *mm) -{ - void * ldt = mm->context.segments; - - /* - * free the LDT - */ - if (ldt) { - mm->context.segments = NULL; - clear_LDT(); - vfree(ldt); - } -} - -/* * Create a kernel thread */ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) @@ -534,45 +514,19 @@ void release_thread(struct task_struct *dead_task) { if (dead_task->mm) { - void * ldt = dead_task->mm->context.segments; - // temporary debugging check - if (ldt) { - printk("WARNING: dead process %8s still has LDT? <%p>\n", - dead_task->comm, ldt); + if (dead_task->mm->context.size) { + printk("WARNING: dead process %8s still has LDT? <%p/%d>\n", + dead_task->comm, + dead_task->mm->context.ldt, + dead_task->mm->context.size); BUG(); } } - release_x86_irqs(dead_task); } /* - * we do not have to muck with descriptors here, that is - * done in switch_mm() as needed. - */ -void copy_segments(struct task_struct *p, struct mm_struct *new_mm) -{ - struct mm_struct * old_mm; - void *old_ldt, *ldt; - - ldt = NULL; - old_mm = current->mm; - if (old_mm && (old_ldt = old_mm->context.segments) != NULL) { - /* - * Completely new LDT, we initialize it from the parent: - */ - ldt = vmalloc(LDT_ENTRIES*LDT_ENTRY_SIZE); - if (!ldt) - printk(KERN_WARNING "ldt allocation failed\n"); - else - memcpy(ldt, old_ldt, LDT_ENTRIES*LDT_ENTRY_SIZE); - } - new_mm->context.segments = ldt; - new_mm->context.cpuvalid = ~0UL; /* valid on all CPU's - they can't have stale data */ -} - -/* * Save a segment. */ #define savesegment(seg,value) \ @@ -697,15 +651,17 @@ asm volatile("movl %%gs,%0":"=m" (*(int *)&prev->gs)); /* - * Restore %fs and %gs. + * Restore %fs and %gs if needed. */ - loadsegment(fs, next->fs); - loadsegment(gs, next->gs); + if (unlikely(prev->fs | prev->gs | next->fs | next->gs)) { + loadsegment(fs, next->fs); + loadsegment(gs, next->gs); + } /* * Now maybe reload the debug registers */ - if (next->debugreg[7]){ + if (unlikely(next->debugreg[7])) { loaddebug(next, 0); loaddebug(next, 1); loaddebug(next, 2); @@ -715,7 +671,7 @@ loaddebug(next, 7); } - if (prev->ioperm || next->ioperm) { + if (unlikely(prev->ioperm || next->ioperm)) { if (next->ioperm) { /* * 4 cachelines copy ... not good, but not that diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/setup.c linux.21pre3-ac4/arch/i386/kernel/setup.c --- linux.21pre3/arch/i386/kernel/setup.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/setup.c 2003-01-10 16:25:37.000000000 +0000 @@ -71,6 +71,9 @@ * CacheSize bug workaround updates for AMD, Intel & VIA Cyrix. * Dave Jones , September, October 2001. * + * Provisions for empty E820 memory regions (reported by certain BIOSes). + * Alex Achenbach , December 2002. + * */ /* @@ -115,6 +118,7 @@ #include #include #include +#include /* * Machine setup.. */ @@ -193,6 +197,8 @@ #define KERNEL_START (*(unsigned long *) (PARAM+0x214)) #define INITRD_START (*(unsigned long *) (PARAM+0x218)) #define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c)) +#define EDD_NR (*(unsigned char *) (PARAM+EDDNR)) +#define EDD_BUF ((struct edd_info *) (PARAM+EDDBUF)) #define COMMAND_LINE ((char *) (PARAM+2048)) #define COMMAND_LINE_SIZE 256 @@ -200,6 +206,7 @@ #define RAMDISK_PROMPT_FLAG 0x8000 #define RAMDISK_LOAD_FLAG 0x4000 + #ifdef CONFIG_VISWS char visws_board_type = -1; char visws_board_rev = -1; @@ -501,7 +508,7 @@ int chgidx, still_changing; int overlap_entries; int new_bios_entry; - int old_nr, new_nr; + int old_nr, new_nr, chg_nr; int i; /* @@ -555,20 +562,24 @@ for (i=0; i < 2*old_nr; i++) change_point[i] = &change_point_list[i]; - /* record all known change-points (starting and ending addresses) */ + /* record all known change-points (starting and ending addresses), + omitting those that are for empty memory regions */ chgidx = 0; for (i=0; i < old_nr; i++) { - change_point[chgidx]->addr = biosmap[i].addr; - change_point[chgidx++]->pbios = &biosmap[i]; - change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].size; - change_point[chgidx++]->pbios = &biosmap[i]; + if (biosmap[i].size != 0) { + change_point[chgidx]->addr = biosmap[i].addr; + change_point[chgidx++]->pbios = &biosmap[i]; + change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].size; + change_point[chgidx++]->pbios = &biosmap[i]; + } } + chg_nr = chgidx; /* true number of change-points */ /* sort change-point list by memory addresses (low -> high) */ still_changing = 1; while (still_changing) { still_changing = 0; - for (i=1; i < 2*old_nr; i++) { + for (i=1; i < chg_nr; i++) { /* if > , swap */ /* or, if current= & last=, swap */ if ((change_point[i]->addr < change_point[i-1]->addr) || @@ -591,7 +602,7 @@ last_type = 0; /* start with undefined memory type */ last_addr = 0; /* start with 0 as last starting address */ /* loop through change-points, determining affect on the new bios map */ - for (chgidx=0; chgidx < 2*old_nr; chgidx++) + for (chgidx=0; chgidx < chg_nr; chgidx++) { /* keep track of all overlapping bios entries */ if (change_point[chgidx]->addr == change_point[chgidx]->pbios->addr) @@ -693,6 +704,23 @@ return 0; } +#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) +unsigned char eddnr; +struct edd_info edd[EDDNR]; +/** + * copy_edd() - Copy the BIOS EDD information + * from empty_zero_page into a safe place. + * + */ +static inline void copy_edd(void) +{ + eddnr = EDD_NR; + memcpy(edd, EDD_BUF, sizeof(edd)); +} +#else +#define copy_edd() do {} while (0) +#endif + /* * Do NOT EVER look at the BIOS memory size location. * It does not work on many machines. @@ -1105,6 +1133,7 @@ rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0); #endif setup_memory_region(); + copy_edd(); if (!MOUNT_ROOT_RDONLY) root_mountflags &= ~MS_RDONLY; @@ -1481,11 +1510,9 @@ } /* - * Cx86_dir0_msb is a HACK needed by check_cx686_cpuid/slop in bugs.h in - * order to identify the Cyrix CPU model after we're out of setup.c - * - * Actually since bugs.h doesn't even reference this perhaps someone should - * fix the documentation ??? + * Cx86_dir0_msb is a HACK needed by check_cx686_cpuid/slop in + * order to identify the Cyrix CPU model after we're out of the + * initial setup. */ static unsigned char Cx86_dir0_msb __initdata = 0; @@ -2913,6 +2940,7 @@ * applications want to get the raw CPUID data, they should access * /dev/cpu//cpuid instead. */ + extern int phys_proc_id[NR_CPUS]; static char *x86_cap_flags[] = { /* Intel-defined */ "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", @@ -2970,6 +2998,11 @@ /* Cache size */ if (c->x86_cache_size >= 0) seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size); + +#ifdef CONFIG_SMP + seq_printf(m, "physical id\t: %d\n",phys_proc_id[n]); + seq_printf(m, "siblings\t: %d\n",smp_num_siblings); +#endif /* We use exception 16 if we have hardware math and we've either seen it or the CPU claims it is internal */ fpu_exception = c->hard_math && (ignore_irq13 || cpu_has_fpu); @@ -3072,11 +3105,12 @@ set_tss_desc(nr,t); gdt_table[__TSS(nr)].b &= 0xfffffdff; load_TR(nr); - load_LDT(&init_mm); + load_LDT(&init_mm.context); - /* - * Clear all 6 debug registers: - */ + /* Clear %fs and %gs. */ + asm volatile ("xorl %eax, %eax; movl %eax, %fs; movl %eax, %gs"); + + /* Clear all 6 debug registers: */ #define CD(register) __asm__("movl %0,%%db" #register ::"r"(0) ); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/smpboot.c linux.21pre3-ac4/arch/i386/kernel/smpboot.c --- linux.21pre3/arch/i386/kernel/smpboot.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/smpboot.c 2003-01-06 19:12:31.000000000 +0000 @@ -58,7 +58,7 @@ /* Number of siblings per CPU package */ int smp_num_siblings = 1; -int __initdata phys_proc_id[NR_CPUS]; /* Package ID of each logical CPU */ +int phys_proc_id[NR_CPUS]; /* Package ID of each logical CPU */ /* Bitmask of currently online CPUs */ unsigned long cpu_online_map; @@ -365,7 +365,7 @@ * (This works even if the APIC is not enabled.) */ phys_id = GET_APIC_ID(apic_read(APIC_ID)); - cpuid = current->processor; + cpuid = cpu(); if (test_and_set_bit(cpuid, &cpu_online_map)) { printk("huh, phys CPU#%d, CPU#%d already present??\n", phys_id, cpuid); @@ -435,6 +435,7 @@ */ smp_store_cpu_info(cpuid); + disable_APIC_timer(); /* * Allow the master to continue. */ @@ -443,7 +444,7 @@ /* * Synchronize the TSC with the BP */ - if (cpu_has_tsc) + if (cpu_has_tsc > 1) synchronize_tsc_ap(); } @@ -465,6 +466,7 @@ smp_callin(); while (!atomic_read(&smp_commenced)) rep_nop(); + enable_APIC_timer(); /* * low-memory mappings have been cleared, flush them from * the local TLBs too. @@ -803,16 +805,13 @@ if (!idle) panic("No idle process for CPU %d", cpu); - idle->processor = cpu; - idle->cpus_runnable = 1 << cpu; /* we schedule the first task manually */ + init_idle(idle, cpu); map_cpu_to_boot_apicid(cpu, apicid); idle->thread.eip = (unsigned long) start_secondary; - del_from_runqueue(idle); unhash_process(idle); - init_tasks[cpu] = idle; /* start_eip had better be page-aligned! */ start_eip = setup_trampoline(); @@ -925,6 +924,7 @@ } cycles_t cacheflush_time; +unsigned long cache_decay_ticks; static void smp_tune_scheduling (void) { @@ -958,9 +958,13 @@ cacheflush_time = (cpu_khz>>10) * (cachesize<<10) / bandwidth; } + cache_decay_ticks = (long)cacheflush_time/cpu_khz * HZ / 1000; + printk("per-CPU timeslice cutoff: %ld.%02ld usecs.\n", (long)cacheflush_time/(cpu_khz/1000), ((long)cacheflush_time*100/(cpu_khz/1000)) % 100); + printk("task migration cache decay timeout: %ld msecs.\n", + (cache_decay_ticks + 1) * 1000 / HZ); } /* @@ -1026,8 +1030,7 @@ map_cpu_to_boot_apicid(0, boot_cpu_apicid); global_irq_holder = 0; - current->processor = 0; - init_idle(); + current->cpu = 0; smp_tune_scheduling(); /* @@ -1219,7 +1222,7 @@ /* * Synchronize the TSC with the AP */ - if (cpu_has_tsc && cpucount) + if (cpu_has_tsc > 1 && cpucount) synchronize_tsc_bp(); smp_done: diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/smp.c linux.21pre3-ac4/arch/i386/kernel/smp.c --- linux.21pre3/arch/i386/kernel/smp.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/smp.c 2003-01-06 19:12:38.000000000 +0000 @@ -496,13 +496,23 @@ * it goes straight through and wastes no time serializing * anything. Worst case is that we lose a reschedule ... */ - void smp_send_reschedule(int cpu) { send_IPI_mask(1 << cpu, RESCHEDULE_VECTOR); } /* + * this function sends a reschedule IPI to all (other) CPUs. + * This should only be used if some 'global' task became runnable, + * such as a RT task, that must be handled now. The first CPU + * that manages to grab the task will run it. + */ +void smp_send_reschedule_all(void) +{ + send_IPI_allbutself(RESCHEDULE_VECTOR); +} + +/* * Structure and data for smp_call_function(). This is designed to minimise * static memory requirements. It also looks cleaner. */ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/speedstep.c linux.21pre3-ac4/arch/i386/kernel/speedstep.c --- linux.21pre3/arch/i386/kernel/speedstep.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/i386/kernel/speedstep.c 2003-01-10 16:27:32.000000000 +0000 @@ -0,0 +1,731 @@ +/* + * $Id: speedstep.c,v 1.64 2003/01/02 22:16:26 db Exp $ + * + * (C) 2001 Dave Jones, Arjan van de ven. + * (C) 2002 Dominik Brodowski + * + * Licensed under the terms of the GNU GPL License version 2. + * Based upon reverse engineered information, and on Intel documentation + * for chipsets ICH2-M and ICH3-M. + * + * Many thanks to Ducrot Bruno for finding and fixing the last + * "missing link" for ICH2-M/ICH3-M support, and to Thomas Winkler + * for extensive testing. + * + * BIG FAT DISCLAIMER: Work in progress code. Possibly *dangerous* + */ + + +/********************************************************************* + * SPEEDSTEP - DEFINITIONS * + *********************************************************************/ + +#include +#include +#include +#include +#include +#include + +#include + + +static struct cpufreq_driver *speedstep_driver; + +/* speedstep_chipset: + * It is necessary to know which chipset is used. As accesses to + * this device occur at various places in this module, we need a + * static struct pci_dev * pointing to that device. + */ +static unsigned int speedstep_chipset; +static struct pci_dev *speedstep_chipset_dev; + +#define SPEEDSTEP_CHIPSET_ICH2M 0x00000002 +#define SPEEDSTEP_CHIPSET_ICH3M 0x00000003 + + +/* speedstep_processor + */ +static unsigned int speedstep_processor = 0; +static int speedstep_coppermine = 0; + +#define SPEEDSTEP_PROCESSOR_PIII_C 0x00000001 /* Coppermine core */ +#define SPEEDSTEP_PROCESSOR_PIII_T 0x00000002 /* Tualatin core */ +#define SPEEDSTEP_PROCESSOR_P4M 0x00000003 /* P4-M with 100 MHz FSB */ + + +/* speedstep_[low,high]_freq + * There are only two frequency states for each processor. Values + * are in kHz for the time being. + */ +#define SPEEDSTEP_HIGH 0x00000000 +#define SPEEDSTEP_LOW 0x00000001 + +static struct cpufreq_frequency_table speedstep_freqs[] = { + {SPEEDSTEP_HIGH, 0}, + {SPEEDSTEP_LOW, 0}, + {0, CPUFREQ_TABLE_END}, +}; + +#define speedstep_low_freq speedstep_freqs[SPEEDSTEP_LOW].frequency +#define speedstep_high_freq speedstep_freqs[SPEEDSTEP_HIGH].frequency + + +/* DEBUG + * Define it if you want verbose debug output, e.g. for bug reporting + */ +//#define SPEEDSTEP_DEBUG + +#ifdef SPEEDSTEP_DEBUG +#define dprintk(msg...) printk(msg) +#else +#define dprintk(msg...) do { } while(0) +#endif + + + +/********************************************************************* + * LOW LEVEL CHIPSET INTERFACE * + *********************************************************************/ + +/** + * speedstep_get_state - read the current SpeedStep state + * @state: Speedstep state (SPEEDSTEP_LOW or SPEEDSTEP_HIGH) + * + * Tries to read the SpeedStep state. Returns -EIO when there has been + * trouble to read the status or write to the control register, -EINVAL + * on an unsupported chipset, and zero on success. + */ +static int speedstep_get_state (unsigned int *state) +{ + unsigned long flags; + u32 pmbase; + u8 value; + + if (!speedstep_chipset_dev || !state) + return -EINVAL; + + switch (speedstep_chipset) { + case SPEEDSTEP_CHIPSET_ICH2M: + case SPEEDSTEP_CHIPSET_ICH3M: + /* get PMBASE */ + pci_read_config_dword(speedstep_chipset_dev, 0x40, &pmbase); + if (!(pmbase & 0x01)) + return -EIO; + + pmbase &= 0xFFFFFFFE; + if (!pmbase) + return -EIO; + + /* read state */ + local_irq_save(flags); + value = inb(pmbase + 0x50); + local_irq_restore(flags); + + dprintk(KERN_DEBUG "cpufreq: read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); + + *state = value & 0x01; + return 0; + + } + + printk (KERN_ERR "cpufreq: setting CPU frequency on this chipset unsupported.\n"); + return -EINVAL; +} + + +/** + * speedstep_set_state - set the SpeedStep state + * @state: new processor frequency state (SPEEDSTEP_LOW or SPEEDSTEP_HIGH) + * + * Tries to change the SpeedStep state. + */ +static void speedstep_set_state (unsigned int state, int notify) +{ + u32 pmbase; + u8 pm2_blk; + u8 value; + unsigned long flags; + unsigned int oldstate; + struct cpufreq_freqs freqs; + + if (!speedstep_chipset_dev || (state > 0x1)) + return; + + if (speedstep_get_state(&oldstate)) + return; + + if (oldstate == state) + return; + + freqs.old = (oldstate == SPEEDSTEP_HIGH) ? speedstep_high_freq : speedstep_low_freq; + freqs.new = (state == SPEEDSTEP_HIGH) ? speedstep_high_freq : speedstep_low_freq; + freqs.cpu = 0; /* speedstep.c is UP only driver */ + + if (notify) + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + + switch (speedstep_chipset) { + case SPEEDSTEP_CHIPSET_ICH2M: + case SPEEDSTEP_CHIPSET_ICH3M: + /* get PMBASE */ + pci_read_config_dword(speedstep_chipset_dev, 0x40, &pmbase); + if (!(pmbase & 0x01)) + { + printk(KERN_ERR "cpufreq: could not find speedstep register\n"); + return; + } + + pmbase &= 0xFFFFFFFE; + if (!pmbase) { + printk(KERN_ERR "cpufreq: could not find speedstep register\n"); + return; + } + + /* Disable IRQs */ + local_irq_save(flags); + + /* read state */ + value = inb(pmbase + 0x50); + + dprintk(KERN_DEBUG "cpufreq: read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); + + /* write new state */ + value &= 0xFE; + value |= state; + + dprintk(KERN_DEBUG "cpufreq: writing 0x%x to pmbase 0x%x + 0x50\n", value, pmbase); + + /* Disable bus master arbitration */ + pm2_blk = inb(pmbase + 0x20); + pm2_blk |= 0x01; + outb(pm2_blk, (pmbase + 0x20)); + + /* Actual transition */ + outb(value, (pmbase + 0x50)); + + /* Restore bus master arbitration */ + pm2_blk &= 0xfe; + outb(pm2_blk, (pmbase + 0x20)); + + /* check if transition was sucessful */ + value = inb(pmbase + 0x50); + + /* Enable IRQs */ + local_irq_restore(flags); + + dprintk(KERN_DEBUG "cpufreq: read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); + + if (state == (value & 0x1)) { + dprintk (KERN_INFO "cpufreq: change to %u MHz succeded\n", (freqs.new / 1000)); + } else { + printk (KERN_ERR "cpufreq: change failed - I/O error\n"); + } + break; + default: + printk (KERN_ERR "cpufreq: setting CPU frequency on this chipset unsupported.\n"); + } + + if (notify) + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + return; +} + + +/** + * speedstep_activate - activate SpeedStep control in the chipset + * + * Tries to activate the SpeedStep status and control registers. + * Returns -EINVAL on an unsupported chipset, and zero on success. + */ +static int speedstep_activate (void) +{ + if (!speedstep_chipset_dev) + return -EINVAL; + + switch (speedstep_chipset) { + case SPEEDSTEP_CHIPSET_ICH2M: + case SPEEDSTEP_CHIPSET_ICH3M: + { + u16 value = 0; + + pci_read_config_word(speedstep_chipset_dev, + 0x00A0, &value); + if (!(value & 0x08)) { + value |= 0x08; + dprintk(KERN_DEBUG "cpufreq: activating SpeedStep (TM) registers\n"); + pci_write_config_word(speedstep_chipset_dev, + 0x00A0, value); + } + + return 0; + } + } + + printk (KERN_ERR "cpufreq: SpeedStep (TM) on this chipset unsupported.\n"); + return -EINVAL; +} + + +/** + * speedstep_detect_chipset - detect the Southbridge which contains SpeedStep logic + * + * Detects PIIX4, ICH2-M and ICH3-M so far. The pci_dev points to + * the LPC bridge / PM module which contains all power-management + * functions. Returns the SPEEDSTEP_CHIPSET_-number for the detected + * chipset, or zero on failure. + */ +static unsigned int speedstep_detect_chipset (void) +{ + speedstep_chipset_dev = pci_find_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82801CA_12, + PCI_ANY_ID, + PCI_ANY_ID, + NULL); + if (speedstep_chipset_dev) + return SPEEDSTEP_CHIPSET_ICH3M; + + + speedstep_chipset_dev = pci_find_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82801BA_10, + PCI_ANY_ID, + PCI_ANY_ID, + NULL); + if (speedstep_chipset_dev) { + /* speedstep.c causes lockups on Dell Inspirons 8000 and + * 8100 which use a pretty old revision of the 82815 + * host brige. Abort on these systems. + */ + static struct pci_dev *hostbridge; + u8 rev = 0; + + hostbridge = pci_find_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82815_MC, + PCI_ANY_ID, + PCI_ANY_ID, + NULL); + + if (!hostbridge) + return SPEEDSTEP_CHIPSET_ICH2M; + + pci_read_config_byte(hostbridge, PCI_REVISION_ID, &rev); + if (rev < 5) { + dprintk(KERN_INFO "cpufreq: hostbrige does not support speedstep\n"); + speedstep_chipset_dev = NULL; + return 0; + } + + return SPEEDSTEP_CHIPSET_ICH2M; + } + + return 0; +} + + + +/********************************************************************* + * LOW LEVEL PROCESSOR INTERFACE * + *********************************************************************/ + + +/** + * pentium3_get_frequency - get the core frequencies for PIIIs + * + * Returns the core frequency of a Pentium III processor (in kHz) + */ +static unsigned int pentium3_get_frequency (void) +{ + /* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */ + struct { + unsigned int ratio; /* Frequency Multiplier (x10) */ + u8 bitmap; /* power on configuration bits + [27, 25:22] (in MSR 0x2a) */ + } msr_decode_mult [] = { + { 30, 0x01 }, + { 35, 0x05 }, + { 40, 0x02 }, + { 45, 0x06 }, + { 50, 0x00 }, + { 55, 0x04 }, + { 60, 0x0b }, + { 65, 0x0f }, + { 70, 0x09 }, + { 75, 0x0d }, + { 80, 0x0a }, + { 85, 0x26 }, + { 90, 0x20 }, + { 100, 0x2b }, + { 0, 0xff } /* error or unknown value */ + }; + /* PIII(-M) FSB settings: see table b1-b of 24547206.pdf */ + struct { + unsigned int value; /* Front Side Bus speed in MHz */ + u8 bitmap; /* power on configuration bits [18: 19] + (in MSR 0x2a) */ + } msr_decode_fsb [] = { + { 66, 0x0 }, + { 100, 0x2 }, + { 133, 0x1 }, + { 0, 0xff} + }; + u32 msr_lo, msr_tmp; + int i = 0, j = 0; + struct cpuinfo_x86 *c = cpu_data; + + /* read MSR 0x2a - we only need the low 32 bits */ + rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); + dprintk(KERN_DEBUG "cpufreq: P3 - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); + msr_tmp = msr_lo; + + /* decode the FSB */ + msr_tmp &= 0x00c0000; + msr_tmp >>= 18; + while (msr_tmp != msr_decode_fsb[i].bitmap) { + if (msr_decode_fsb[i].bitmap == 0xff) + return -EINVAL; + i++; + } + + /* decode the multiplier */ + if ((c->x86_model == 0x08) && (c->x86_mask == 0x01)) + /* different on early Coppermine PIII */ + msr_lo &= 0x03c00000; + else + msr_lo &= 0x0bc00000; + msr_lo >>= 22; + while (msr_lo != msr_decode_mult[j].bitmap) { + if (msr_decode_mult[j].bitmap == 0xff) + return -EINVAL; + j++; + } + + return (msr_decode_mult[j].ratio * msr_decode_fsb[i].value * 100); +} + + +/** + * pentium4_get_frequency - get the core frequency for P4-Ms + * + * Should return the core frequency (in kHz) for P4-Ms. + */ +static unsigned int pentium4_get_frequency(void) +{ + u32 msr_lo, msr_hi; + + rdmsr(0x2c, msr_lo, msr_hi); + + dprintk(KERN_DEBUG "cpufreq: P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi); + + /* First 12 bits seem to change a lot (0x511, 0x410 and 0x30f seen + * yet). Next 12 bits always seem to be 0x300. If this is not true + * on this CPU, complain. Last 8 bits are frequency (in 100MHz). + */ + if (msr_hi || ((msr_lo & 0x00FFF000) != 0x300000)) { + printk(KERN_DEBUG "cpufreq: P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi); + printk(KERN_INFO "cpufreq: problem in initialization. Please contact Dominik Brodowski\n"); + printk(KERN_INFO "cpufreq: and attach this dmesg. Thanks in advance\n"); + return 0; + } + + msr_lo >>= 24; + return (msr_lo * 100000); +} + + +/** + * speedstep_detect_processor - detect Intel SpeedStep-capable processors. + * + * Returns the SPEEDSTEP_PROCESSOR_-number for the detected processor, + * or zero on failure. + */ +static unsigned int speedstep_detect_processor (void) +{ + struct cpuinfo_x86 *c = cpu_data; + u32 ebx; + + if ((c->x86_vendor != X86_VENDOR_INTEL) || + ((c->x86 != 6) && (c->x86 != 0xF))) + return 0; + + if (c->x86 == 0xF) { + /* Intel Pentium 4 Mobile P4-M */ + if (c->x86_model != 2) + return 0; + + if ((c->x86_mask != 4) && (c->x86_mask != 7)) + return 0; + + ebx = cpuid_ebx(0x00000001); + ebx &= 0x000000FF; + if ((ebx != 0x0e) && (ebx != 0x0f)) + return 0; + + return SPEEDSTEP_PROCESSOR_P4M; + } + + switch (c->x86_model) { + case 0x0B: /* Intel PIII [Tualatin] */ + /* cpuid_ebx(1) is 0x04 for desktop PIII, + 0x06 for mobile PIII-M */ + ebx = cpuid_ebx(0x00000001); + + ebx &= 0x000000FF; + if (ebx != 0x06) + return 0; + + /* So far all PIII-M processors support SpeedStep. See + * Intel's 24540633.pdf of August 2002 + */ + + return SPEEDSTEP_PROCESSOR_PIII_T; + + case 0x08: /* Intel PIII [Coppermine] */ + { + u32 msr_lo, msr_hi; + + /* all mobile PIII Coppermines have FSB 100 MHz + * ==> sort out a few desktop PIIIs. */ + rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_hi); + dprintk(KERN_DEBUG "cpufreq: Coppermine: MSR_IA32_EBL_Cr_POWERON is 0x%x, 0x%x\n", msr_lo, msr_hi); + msr_lo &= 0x00c0000; + if (msr_lo != 0x0080000) + return 0; + + if (speedstep_coppermine) + return SPEEDSTEP_PROCESSOR_PIII_C; + + printk(KERN_INFO "cpufreq: in case this is a SpeedStep-capable Intel Pentium III Coppermine\n"); + printk(KERN_INFO "cpufreq: processor, please pass the boot option or module parameter\n"); + printk(KERN_INFO "cpufreq: `speedstep_coppermine=1` to the kernel. Thanks!\n"); + return 0; + } + + default: + return 0; + } +} + + + +/********************************************************************* + * HIGH LEVEL FUNCTIONS * + *********************************************************************/ + +/** + * speedstep_detect_speeds - detects low and high CPU frequencies. + * + * Detects the low and high CPU frequencies in kHz. Returns 0 on + * success or -EINVAL / -EIO on problems. + */ +static int speedstep_detect_speeds (void) +{ + unsigned long flags; + unsigned int state; + int i, result; + + /* Disable irqs for entire detection process */ + local_irq_save(flags); + + for (i=0; i<2; i++) { + /* read the current state */ + result = speedstep_get_state(&state); + if (result) + return result; + + /* save the correct value, and switch to other */ + if (state == SPEEDSTEP_LOW) { + switch (speedstep_processor) { + case SPEEDSTEP_PROCESSOR_PIII_C: + case SPEEDSTEP_PROCESSOR_PIII_T: + speedstep_low_freq = pentium3_get_frequency(); + break; + case SPEEDSTEP_PROCESSOR_P4M: + speedstep_low_freq = pentium4_get_frequency(); + } + speedstep_set_state(SPEEDSTEP_HIGH, 0); + } else { + switch (speedstep_processor) { + case SPEEDSTEP_PROCESSOR_PIII_C: + case SPEEDSTEP_PROCESSOR_PIII_T: + speedstep_high_freq = pentium3_get_frequency(); + break; + case SPEEDSTEP_PROCESSOR_P4M: + speedstep_high_freq = pentium4_get_frequency(); + } + speedstep_set_state(SPEEDSTEP_LOW, 0); + } + } + + local_irq_restore(flags); + + if (!speedstep_low_freq || !speedstep_high_freq || + (speedstep_low_freq == speedstep_high_freq)) + return -EIO; + + return 0; +} + + +/** + * speedstep_setpolicy - set a new CPUFreq policy + * @policy: new policy + * + * Sets a new CPUFreq policy. + */ +static int speedstep_setpolicy (struct cpufreq_policy *policy) +{ + unsigned int newstate = 0; + + if (cpufreq_frequency_table_setpolicy(policy, &speedstep_freqs[0], &newstate)) + return -EINVAL; + + speedstep_set_state(newstate, 1); + + return 0; +} + + +/** + * speedstep_verify - verifies a new CPUFreq policy + * @freq: new policy + * + * Limit must be within speedstep_low_freq and speedstep_high_freq, with + * at least one border included. + */ +static int speedstep_verify (struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]); +} + + +#ifndef MODULE +/** + * speedstep_setup speedstep command line parameter parsing + * + * speedstep command line parameter. Use: + * speedstep_coppermine=1 + * if the CPU in your notebook is a SpeedStep-capable Intel + * Pentium III Coppermine. These processors cannot be detected + * automatically, as Intel continues to consider the detection + * alogrithm as proprietary material. + */ +static int __init speedstep_setup(char *str) +{ + speedstep_coppermine = simple_strtoul(str, &str, 0); + return 1; +} +__setup("speedstep_coppermine=", speedstep_setup); +#endif + +/** + * speedstep_init - initializes the SpeedStep CPUFreq driver + * + * Initializes the SpeedStep support. Returns -ENODEV on unsupported + * devices, -EINVAL on problems during initiatization, and zero on + * success. + */ +static int __init speedstep_init(void) +{ + int result; + unsigned int speed; + struct cpufreq_driver *driver; + + + /* detect chipset */ + speedstep_chipset = speedstep_detect_chipset(); + + /* detect chipset */ + if (speedstep_chipset) + speedstep_processor = speedstep_detect_processor(); + + if ((!speedstep_chipset) || (!speedstep_processor)) { + printk(KERN_INFO "cpufreq: Intel(R) SpeedStep(TM) for this %s not (yet) available.\n", speedstep_chipset ? "processor" : "chipset"); + return -ENODEV; + } + + dprintk(KERN_INFO "cpufreq: Intel(R) SpeedStep(TM) support $Revision: 1.64 $\n"); + dprintk(KERN_DEBUG "cpufreq: chipset 0x%x - processor 0x%x\n", + speedstep_chipset, speedstep_processor); + + /* activate speedstep support */ + result = speedstep_activate(); + if (result) + return result; + + /* detect low and high frequency */ + result = speedstep_detect_speeds(); + if (result) + return result; + + /* get current speed setting */ + result = speedstep_get_state(&speed); + if (result) + return result; + + speed = (speed == SPEEDSTEP_LOW) ? speedstep_low_freq : speedstep_high_freq; + + dprintk(KERN_INFO "cpufreq: currently at %s speed setting - %i MHz\n", + (speed == speedstep_low_freq) ? "low" : "high", + (speed / 1000)); + + /* initialization of main "cpufreq" code*/ + driver = kmalloc(sizeof(struct cpufreq_driver) + + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL); + if (!driver) + return -ENOMEM; + + driver->policy = (struct cpufreq_policy *) (driver + 1); + + driver->policy[0].cpu = 0; + result = cpufreq_frequency_table_cpuinfo(&driver->policy[0], &speedstep_freqs[0]); + if (result) { + kfree(driver); + return result; + } + +#ifdef CONFIG_CPU_FREQ_24_API + driver->cpu_cur_freq[0] = speed; +#endif + + driver->verify = &speedstep_verify; + driver->setpolicy = &speedstep_setpolicy; + + driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL; + + driver->policy[0].policy = (speed == speedstep_low_freq) ? + CPUFREQ_POLICY_POWERSAVE : CPUFREQ_POLICY_PERFORMANCE; + + speedstep_driver = driver; + + result = cpufreq_register(driver); + if (result) { + speedstep_driver = NULL; + kfree(driver); + } + + return result; +} + + +/** + * speedstep_exit - unregisters SpeedStep support + * + * Unregisters SpeedStep support. + */ +static void __exit speedstep_exit(void) +{ + if (speedstep_driver) { + cpufreq_unregister(); + kfree(speedstep_driver); + } +} + + +MODULE_AUTHOR ("Dave Jones , Dominik Brodowski "); +MODULE_DESCRIPTION ("Speedstep driver for Intel mobile processors."); +MODULE_LICENSE ("GPL"); +module_init(speedstep_init); +module_exit(speedstep_exit); + +MODULE_PARM (speedstep_coppermine, "i"); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/time.c linux.21pre3-ac4/arch/i386/kernel/time.c --- linux.21pre3/arch/i386/kernel/time.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/time.c 2003-01-10 16:26:19.000000000 +0000 @@ -42,6 +42,8 @@ #include #include #include +#include +#include #include #include @@ -825,6 +827,50 @@ return 0; } +#ifdef CONFIG_CPU_FREQ +static unsigned int ref_freq = 0; +static unsigned long loops_per_jiffy_ref = 0; + +#ifndef CONFIG_SMP +static unsigned long fast_gettimeoffset_ref = 0; +static unsigned long cpu_khz_ref = 0; +#endif + +static int +time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, + void *data) +{ + struct cpufreq_freqs *freq = data; + + if (!ref_freq) { + ref_freq = freq->old; + loops_per_jiffy_ref = cpu_data[freq->cpu].loops_per_jiffy; +#ifndef CONFIG_SMP + fast_gettimeoffset_ref = fast_gettimeoffset_quotient; + cpu_khz_ref = cpu_khz; +#endif + } + + if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || + (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) { + cpu_data[freq->cpu].loops_per_jiffy = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new); +#ifndef CONFIG_SMP + if (use_tsc) { + fast_gettimeoffset_quotient = cpufreq_scale(fast_gettimeoffset_ref, freq->new, ref_freq); + cpu_khz = cpufreq_scale(cpu_khz_ref, ref_freq, freq->new); + } +#endif + } + + return 0; +} + +static struct notifier_block time_cpufreq_notifier_block = { + .notifier_call = time_cpufreq_notifier +}; +#endif + + void __init time_init(void) { extern int x86_udelay_tsc; @@ -896,6 +942,9 @@ } } +#ifdef CONFIG_CPU_FREQ + cpufreq_register_notifier(&time_cpufreq_notifier_block, CPUFREQ_TRANSITION_NOTIFIER); +#endif #ifdef CONFIG_VISWS printk("Starting Cobalt Timer system clock\n"); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/kernel/traps.c linux.21pre3-ac4/arch/i386/kernel/traps.c --- linux.21pre3/arch/i386/kernel/traps.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/kernel/traps.c 2003-01-06 15:42:33.000000000 +0000 @@ -284,6 +284,20 @@ void die(const char * str, struct pt_regs * regs, long err) { +#ifdef CONFIG_PNPBIOS + if (regs->xcs == 0x60 || regs->xcs == 0x68) + { + extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; + extern u32 pnp_bios_is_utter_crap; + pnp_bios_is_utter_crap = 1; + printk(KERN_CRIT "PNPBIOS fault.. attempting recovery.\n"); + __asm__ volatile( + "movl %0, %%esp\n\t" + "jmp %1\n\t" + : "=a" (pnp_bios_fault_esp), "=b" (pnp_bios_fault_eip)); + panic("do_trap: can't hit this"); + } +#endif console_verbose(); spin_lock_irq(&die_lock); bust_spinlocks(1); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/lib/delay.c linux.21pre3-ac4/arch/i386/lib/delay.c --- linux.21pre3/arch/i386/lib/delay.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/lib/delay.c 2003-01-12 01:03:08.000000000 +0000 @@ -81,3 +81,8 @@ { __const_udelay(usecs * 0x000010c6); /* 2**32 / 1000000 */ } + +void __ndelay(unsigned long usecs) +{ + __const_udelay(usecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ +} diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/math-emu/fpu_system.h linux.21pre3-ac4/arch/i386/math-emu/fpu_system.h --- linux.21pre3/arch/i386/math-emu/fpu_system.h 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/math-emu/fpu_system.h 2003-01-06 19:12:50.000000000 +0000 @@ -20,7 +20,7 @@ of the stack frame of math_emulate() */ #define SETUP_DATA_AREA(arg) FPU_info = (struct info *) &arg -#define LDT_DESCRIPTOR(s) (((struct desc_struct *)current->mm->context.segments)[(s) >> 3]) +#define LDT_DESCRIPTOR(s) (((struct desc_struct *)current->mm->context.ldt)[(s) >> 3]) #define SEG_D_SIZE(x) ((x).b & (3 << 21)) #define SEG_G_BIT(x) ((x).b & (1 << 23)) #define SEG_GRANULARITY(x) (((x).b & (1 << 23)) ? 4096 : 1) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/mm/fault.c linux.21pre3-ac4/arch/i386/mm/fault.c --- linux.21pre3/arch/i386/mm/fault.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/mm/fault.c 2003-01-06 19:10:27.000000000 +0000 @@ -76,9 +76,7 @@ return 1; check_stack: - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; - if (expand_stack(vma, start) == 0) + if (!expand_stack(vma, start)) goto good_area; bad_area: diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/i386/mm/init.c linux.21pre3-ac4/arch/i386/mm/init.c --- linux.21pre3/arch/i386/mm/init.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/i386/mm/init.c 2003-01-08 15:27:29.000000000 +0000 @@ -510,7 +510,15 @@ if (!mem_map) BUG(); - +#ifdef CONFIG_HIGHMEM + /* check that fixmap and pkmap do not overlap */ + if (PKMAP_BASE+LAST_PKMAP*PAGE_SIZE >= FIXADDR_START) { + printk(KERN_ERR "fixmap and kmap areas overlap - this will crash\n"); + printk(KERN_ERR "pkstart: %lxh pkend: %lxh fixstart %lxh\n", + PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE, FIXADDR_START); + BUG(); + } +#endif set_max_mapnr_init(); high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ia64/ia32/sys_ia32.c linux.21pre3-ac4/arch/ia64/ia32/sys_ia32.c --- linux.21pre3/arch/ia64/ia32/sys_ia32.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/ia64/ia32/sys_ia32.c 2003-01-06 23:19:29.000000000 +0000 @@ -3782,7 +3782,11 @@ return result; } -struct dqblk32 { +extern asmlinkage long sys_quotactl(int cmd, const char *special, int id, caddr_t addr); + +#ifdef CONFIG_QIFACE_COMPAT +#ifdef CONFIG_QIFACE_V1 +struct user_dqblk32 { __u32 dqb_bhardlimit; __u32 dqb_bsoftlimit; __u32 dqb_curblocks; @@ -3792,49 +3796,82 @@ __kernel_time_t32 dqb_btime; __kernel_time_t32 dqb_itime; }; +typedef struct v1c_mem_dqblk comp_dqblk_t; -asmlinkage long -sys32_quotactl (int cmd, unsigned int special, int id, struct dqblk32 *addr) +#define Q_COMP_GETQUOTA Q_V1_GETQUOTA +#define Q_COMP_SETQUOTA Q_V1_SETQUOTA +#define Q_COMP_SETQLIM Q_V1_SETQLIM +#define Q_COMP_SETUSE Q_V1_SETUSE +#else +struct user_dqblk32 { + __u32 dqb_ihardlimit; + __u32 dqb_isoftlimit; + __u32 dqb_curinodes; + __u32 dqb_bhardlimit; + __u32 dqb_bsoftlimit; + __u64 dqb_curspace; + __kernel_time_t32 dqb_btime; + __kernel_time_t32 dqb_itime; +}; +typedef struct v2c_mem_dqblk comp_dqblk_t; + +#define Q_COMP_GETQUOTA Q_V2_GETQUOTA +#define Q_COMP_SETQUOTA Q_V2_SETQUOTA +#define Q_COMP_SETQLIM Q_V2_SETQLIM +#define Q_COMP_SETUSE Q_V2_SETUSE +#endif + +asmlinkage long sys32_quotactl(int cmd, const char *special, int id, caddr_t addr) { - extern asmlinkage long sys_quotactl (int, const char *, int, caddr_t); int cmds = cmd >> SUBCMDSHIFT; + long err; + comp_dqblk_t d; mm_segment_t old_fs; - struct dqblk d; char *spec; - long err; - + switch (cmds) { - case Q_GETQUOTA: - break; - case Q_SETQUOTA: - case Q_SETUSE: - case Q_SETQLIM: - if (copy_from_user (&d, addr, sizeof(struct dqblk32))) - return -EFAULT; - d.dqb_itime = ((struct dqblk32 *)&d)->dqb_itime; - d.dqb_btime = ((struct dqblk32 *)&d)->dqb_btime; - break; - default: - return sys_quotactl(cmd, (void *) A(special), id, (caddr_t) addr); + case Q_COMP_GETQUOTA: + break; + case Q_COMP_SETQUOTA: + case Q_COMP_SETUSE: + case Q_COMP_SETQLIM: + if (copy_from_user(&d, (struct user_dqblk32 *)addr, + sizeof (struct user_dqblk32))) + return -EFAULT; + d.dqb_itime = ((struct user_dqblk32 *)&d)->dqb_itime; + d.dqb_btime = ((struct user_dqblk32 *)&d)->dqb_btime; + break; + default: + return sys_quotactl(cmd, special, id, (__kernel_caddr_t)addr); } - spec = getname32((void *) A(special)); + spec = getname (special); err = PTR_ERR(spec); - if (IS_ERR(spec)) + if (IS_ERR(spec)) return err; + old_fs = get_fs(); + set_fs (KERNEL_DS); + err = sys_quotactl(cmd, (const char *)spec, id, (__kernel_caddr_t)&d); + set_fs (old_fs); + putname (spec); + if (err) return err; - old_fs = get_fs (); - set_fs(KERNEL_DS); - err = sys_quotactl(cmd, (const char *)spec, id, (caddr_t)&d); - set_fs(old_fs); - putname(spec); - if (cmds == Q_GETQUOTA) { + if (cmds == Q_COMP_GETQUOTA) { __kernel_time_t b = d.dqb_btime, i = d.dqb_itime; - ((struct dqblk32 *)&d)->dqb_itime = i; - ((struct dqblk32 *)&d)->dqb_btime = b; - if (copy_to_user(addr, &d, sizeof(struct dqblk32))) + ((struct user_dqblk32 *)&d)->dqb_itime = i; + ((struct user_dqblk32 *)&d)->dqb_btime = b; + if (copy_to_user ((struct user_dqblk32 *)addr, &d, + sizeof (struct user_dqblk32))) return -EFAULT; } - return err; + return 0; +} + +#else +/* No conversion needed for new interface */ +asmlinkage long sys32_quotactl(int cmd, const char *special, int id, caddr_t addr) +{ + return sys_quotactl(cmd, special, id, addr); } +#endif asmlinkage long sys32_sched_rr_get_interval (pid_t pid, struct timespec32 *interval) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ia64/mm/fault.c linux.21pre3-ac4/arch/ia64/mm/fault.c --- linux.21pre3/arch/ia64/mm/fault.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/ia64/mm/fault.c 2003-01-06 19:13:14.000000000 +0000 @@ -127,8 +127,6 @@ check_expansion: if (!(prev_vma && (prev_vma->vm_flags & VM_GROWSUP) && (address == prev_vma->vm_end))) { - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (rgn_index(address) != rgn_index(vma->vm_start) || rgn_offset(address) >= RGN_MAP_LIMIT) goto bad_area; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/mips/mm/fault.c linux.21pre3-ac4/arch/mips/mm/fault.c --- linux.21pre3/arch/mips/mm/fault.c 2003-01-07 14:01:59.000000000 +0000 +++ linux.21pre3-ac4/arch/mips/mm/fault.c 2003-01-06 19:13:14.000000000 +0000 @@ -111,8 +111,6 @@ goto bad_area; if (vma->vm_start <= address) goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (expand_stack(vma, address)) goto bad_area; /* diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/mips64/mm/fault.c linux.21pre3-ac4/arch/mips64/mm/fault.c --- linux.21pre3/arch/mips64/mm/fault.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/mips64/mm/fault.c 2003-01-06 19:13:14.000000000 +0000 @@ -135,8 +135,6 @@ goto bad_area; if (vma->vm_start <= address) goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (expand_stack(vma, address)) goto bad_area; /* diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/config.in linux.21pre3-ac4/arch/parisc/config.in --- linux.21pre3/arch/parisc/config.in 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/config.in 2003-01-06 15:38:40.000000000 +0000 @@ -47,9 +47,6 @@ bool 'Symmetric multi-processing support' CONFIG_SMP bool 'Chassis LCD and LED support' CONFIG_CHASSIS_LCD_LED -bool 'Kernel Debugger support' CONFIG_KWDB -# define_bool CONFIG_KWDB n - bool 'U2/Uturn I/O MMU' CONFIG_IOMMU_CCIO bool 'VSC/GSC/HSC bus support' CONFIG_GSC dep_bool ' Lasi I/O support' CONFIG_GSC_LASI $CONFIG_GSC @@ -194,6 +191,7 @@ #bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC bool 'Magic SysRq key' CONFIG_MAGIC_SYSRQ +bool 'Debug spinlocks' CONFIG_DEBUG_SPINLOCK endmenu source lib/Config.in diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/defconfig linux.21pre3-ac4/arch/parisc/defconfig --- linux.21pre3/arch/parisc/defconfig 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/defconfig 2003-01-06 15:38:40.000000000 +0000 @@ -32,7 +32,6 @@ # # CONFIG_SMP is not set CONFIG_CHASSIS_LCD_LED=y -# CONFIG_KWDB is not set CONFIG_IOMMU_CCIO=y CONFIG_GSC=y CONFIG_GSC_LASI=y @@ -87,7 +86,9 @@ # CONFIG_PARIDE is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_CISS_SCSI_TAPE is not set # CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set CONFIG_BLK_DEV_LOOP=y # CONFIG_BLK_DEV_NBD is not set CONFIG_BLK_DEV_RAM=y @@ -138,6 +139,11 @@ # # CONFIG_IPX is not set # CONFIG_ATALK is not set + +# +# Appletalk devices +# +# CONFIG_DEV_APPLETALK is not set # CONFIG_DECNET is not set # CONFIG_BRIDGE is not set # CONFIG_X25 is not set @@ -155,6 +161,11 @@ # CONFIG_NET_SCHED is not set # +# Network testing +# +# CONFIG_NET_PKTGEN is not set + +# # ATA/IDE/MFM/RLL support # CONFIG_IDE=y @@ -171,6 +182,7 @@ # CONFIG_BLK_DEV_HD is not set # CONFIG_BLK_DEV_IDEDISK is not set # CONFIG_IDEDISK_MULTI_MODE is not set +# CONFIG_IDEDISK_STROKE is not set # CONFIG_BLK_DEV_IDEDISK_VENDOR is not set # CONFIG_BLK_DEV_IDEDISK_FUJITSU is not set # CONFIG_BLK_DEV_IDEDISK_IBM is not set @@ -185,6 +197,7 @@ # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set # CONFIG_BLK_DEV_IDESCSI is not set +# CONFIG_IDE_TASK_IOCTL is not set # # IDE chipset support/bugfixes @@ -196,12 +209,15 @@ CONFIG_BLK_DEV_IDEPCI=y # CONFIG_IDEPCI_SHARE_IRQ is not set CONFIG_BLK_DEV_IDEDMA_PCI=y -CONFIG_BLK_DEV_ADMA=y # CONFIG_BLK_DEV_OFFBOARD is not set +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set # CONFIG_IDEDMA_PCI_AUTO is not set +# CONFIG_IDEDMA_ONLYDISK is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_PCI_WIP is not set +# CONFIG_BLK_DEV_IDEDMA_TIMEOUT is not set # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set +CONFIG_BLK_DEV_ADMA=y # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_AEC62XX_TUNING is not set # CONFIG_BLK_DEV_ALI15X3 is not set @@ -209,6 +225,7 @@ # CONFIG_BLK_DEV_AMD74XX is not set # CONFIG_AMD74XX_OVERRIDE is not set # CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_CMD680 is not set # CONFIG_BLK_DEV_CY82C693 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT34X is not set @@ -296,9 +313,13 @@ CONFIG_53C700_USE_CONSISTENT=y # CONFIG_SCSI_NCR53C7xx is not set # CONFIG_SCSI_SYM53C8XX_2 is not set -# CONFIG_SCSI_NCR53C8XX is not set -CONFIG_SCSI_SYM53C8XX=y +# CONFIG_ASK_ZALON is not set +# CONFIG_ASK_NCR53C8XX is not set +# CONFIG_ASK_SYM53C8XX is not set CONFIG_SCSI_ZALON=y +CONFIG_ASK_ZALON=y +CONFIG_SCSI_SYM53C8XX=y +CONFIG_ASK_SYM53C8XX=y CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8 CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32 CONFIG_SCSI_NCR53C8XX_SYNC=20 @@ -366,6 +387,7 @@ # CONFIG_APRICOT is not set # CONFIG_CS89x0 is not set CONFIG_TULIP=y +# CONFIG_TC35815 is not set # CONFIG_TULIP_MWI is not set # CONFIG_TULIP_MMIO is not set # CONFIG_DE4X5 is not set @@ -403,6 +425,7 @@ # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_SK98LIN is not set +# CONFIG_TIGON3 is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PLIP is not set @@ -473,6 +496,7 @@ CONFIG_PSMOUSE=y # CONFIG_82C710_MOUSE is not set # CONFIG_PC110_PAD is not set +# CONFIG_MK712_MOUSE is not set # # Joysticks @@ -515,7 +539,6 @@ # # CONFIG_WATCHDOG is not set CONFIG_GENRTC=y -# CONFIG_INTEL_RNG is not set # CONFIG_NVRAM is not set # CONFIG_RTC is not set # CONFIG_DTLK is not set @@ -585,7 +608,7 @@ # CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set # CONFIG_TMPFS is not set -# CONFIG_RAMFS is not set +CONFIG_RAMFS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y # CONFIG_ZISOFS is not set @@ -697,6 +720,7 @@ # CONFIG_FB_RIVA is not set # CONFIG_FB_CLGEN is not set # CONFIG_FB_PM2 is not set +# CONFIG_FB_PM3 is not set # CONFIG_FB_CYBER2000 is not set CONFIG_FB_STI=y # CONFIG_FB_MATROX is not set @@ -704,6 +728,7 @@ # CONFIG_FB_RADEON is not set # CONFIG_FB_ATY128 is not set # CONFIG_FB_SIS is not set +# CONFIG_FB_NEOMAGIC is not set # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_TRIDENT is not set @@ -759,106 +784,6 @@ # CONFIG_USB is not set # -# USB Controllers -# -# CONFIG_USB_UHCI is not set -# CONFIG_USB_UHCI_ALT is not set -# CONFIG_USB_OHCI is not set - -# -# USB Device Class drivers -# -# CONFIG_USB_AUDIO is not set -# CONFIG_USB_BLUETOOTH is not set -# CONFIG_USB_STORAGE is not set -# CONFIG_USB_STORAGE_DEBUG is not set -# CONFIG_USB_STORAGE_DATAFAB is not set -# CONFIG_USB_STORAGE_FREECOM is not set -# CONFIG_USB_STORAGE_ISD200 is not set -# CONFIG_USB_STORAGE_DPCM is not set -# CONFIG_USB_STORAGE_HP8200e is not set -# CONFIG_USB_STORAGE_SDDR09 is not set -# CONFIG_USB_STORAGE_JUMPSHOT is not set -# CONFIG_USB_ACM is not set -# CONFIG_USB_PRINTER is not set - -# -# USB Human Interface Devices (HID) -# -# CONFIG_USB_HID is not set -# CONFIG_USB_HIDDEV is not set -# CONFIG_USB_KBD is not set -# CONFIG_USB_MOUSE is not set -# CONFIG_USB_WACOM is not set - -# -# USB Imaging devices -# -# CONFIG_USB_DC2XX is not set -# CONFIG_USB_MDC800 is not set -# CONFIG_USB_SCANNER is not set -# CONFIG_USB_MICROTEK is not set -# CONFIG_USB_HPUSBSCSI is not set - -# -# USB Multimedia devices -# - -# -# Video4Linux support is needed for USB Multimedia device support -# - -# -# USB Network adaptors -# -# CONFIG_USB_PEGASUS is not set -# CONFIG_USB_KAWETH is not set -# CONFIG_USB_CATC is not set -# CONFIG_USB_CDCETHER is not set -# CONFIG_USB_USBNET is not set - -# -# USB port drivers -# -# CONFIG_USB_USS720 is not set - -# -# USB Serial Converter support -# -# CONFIG_USB_SERIAL is not set -# CONFIG_USB_SERIAL_GENERIC is not set -# CONFIG_USB_SERIAL_BELKIN is not set -# CONFIG_USB_SERIAL_WHITEHEAT is not set -# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set -# CONFIG_USB_SERIAL_EMPEG is not set -# CONFIG_USB_SERIAL_FTDI_SIO is not set -# CONFIG_USB_SERIAL_VISOR is not set -# CONFIG_USB_SERIAL_IPAQ is not set -# CONFIG_USB_SERIAL_IR is not set -# CONFIG_USB_SERIAL_EDGEPORT is not set -# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set -# CONFIG_USB_SERIAL_KEYSPAN is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set -# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set -# CONFIG_USB_SERIAL_MCT_U232 is not set -# CONFIG_USB_SERIAL_KLSI is not set -# CONFIG_USB_SERIAL_PL2303 is not set -# CONFIG_USB_SERIAL_CYBERJACK is not set -# CONFIG_USB_SERIAL_XIRCOM is not set -# CONFIG_USB_SERIAL_OMNINET is not set - -# -# USB Miscellaneous drivers -# -# CONFIG_USB_RIO500 is not set - -# # Kernel hacking # CONFIG_MAGIC_SYSRQ=y diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/ccio-dma.c linux.21pre3-ac4/arch/parisc/kernel/ccio-dma.c --- linux.21pre3/arch/parisc/kernel/ccio-dma.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/ccio-dma.c 2003-01-06 15:38:40.000000000 +0000 @@ -609,8 +609,6 @@ return 0; } - dev->dma_mask = mask; /* save it */ - /* only support 32-bit devices (ie PCI/GSC) */ return (int)(mask == 0xffffffffUL); } @@ -1441,7 +1439,7 @@ result = request_resource(&iomem_resource, res); if (result < 0) { printk(KERN_ERR - "%s: failed to claim CCIO bus address space (%p,%p)\n", + "%s: failed to claim CCIO bus address space (%lx,%lx)\n", __FILE__, res->start, res->end); } } @@ -1486,7 +1484,7 @@ int ccio_allocate_resource(const struct parisc_device *dev, struct resource *res, unsigned long size, unsigned long min, unsigned long max, unsigned long align, - void (*alignf)(void *, struct resource *, unsigned long), + void (*alignf)(void *, struct resource *, unsigned long, unsigned long), void *alignf_data) { struct ioc *ioc = ccio_get_iommu(dev); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/ccio-rm-dma.c linux.21pre3-ac4/arch/parisc/kernel/ccio-rm-dma.c --- linux.21pre3/arch/parisc/kernel/ccio-rm-dma.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/ccio-rm-dma.c 2003-01-06 15:38:40.000000000 +0000 @@ -74,8 +74,6 @@ return(0); } - dev->dma_mask = mask; /* save it */ - /* only support 32-bit devices (ie PCI/GSC) */ return((int) (mask >= 0xffffffffUL)); } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/drivers.c linux.21pre3-ac4/arch/parisc/kernel/drivers.c --- linux.21pre3/arch/parisc/kernel/drivers.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/drivers.c 2003-01-06 15:38:40.000000000 +0000 @@ -461,6 +461,7 @@ #define BC_PORT_MASK 0x8 #define BC_LOWER_PORT 0x8 + #define BUS_CONVERTER(dev) \ ((dev->id.hw_type == HPHW_IOA) || (dev->id.hw_type == HPHW_BCPORT)) @@ -473,14 +474,29 @@ __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_low) << 16 : \ __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_low)) -static void walk_native_bus(unsigned long addr, struct parisc_device *parent); +#define READ_IO_IO_HIGH(dev) \ + (dev->id.hw_type == HPHW_IOA ? \ + __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_high) << 16 : \ + __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_high)) + + +static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high, + struct parisc_device *parent); + +#define FLEX_MASK (unsigned long)0xfffffffffffc0000 + + void walk_lower_bus(struct parisc_device *dev) { + unsigned long io_io_low, io_io_high; if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev)) return; - walk_native_bus((unsigned long)(signed int)READ_IO_IO_LOW(dev), dev); + io_io_low = ((unsigned long)(signed int)READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK; + io_io_high = ((unsigned long)(signed int)READ_IO_IO_HIGH(dev) + ~FLEX_MASK) & FLEX_MASK; + + walk_native_bus(io_io_low, io_io_high, dev); } #define MAX_NATIVE_DEVICES 64 @@ -488,7 +504,9 @@ /** * walk_native_bus -- Probe a bus for devices - * @addr: Base address of this bus. + * @io_io_low: Base address of this bus. + * @io_io_high: Last address of this bus. + * @parent: The parent bus device. * * A native bus (eg Runway or GSC) may have up to 64 devices on it, * spaced at intervals of 0x1000 bytes. PDC may not inform us of these @@ -496,28 +514,32 @@ * devices which are not physically connected (such as extra serial & * keyboard ports). This problem is not yet solved. */ -static void walk_native_bus(unsigned long addr, struct parisc_device *parent) +static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high, + struct parisc_device *parent) { - int i; + int i, devices_found = 0; + unsigned long hpa = io_io_low; struct hardware_path path; get_node_path(parent, &path); - for (i = 0; i < MAX_NATIVE_DEVICES; i++) { - unsigned long hpa = (addr + i * NATIVE_DEVICE_OFFSET); - struct parisc_device *dev; - - /* Was the device already added by Firmware? */ - dev = find_device_by_addr(hpa); - if (!dev) { - path.mod = i; - dev = alloc_pa_dev(hpa, &path); - if (!dev) - continue; - - register_parisc_device(dev); + do { + for (i = 0; i < MAX_NATIVE_DEVICES; i++, hpa += NATIVE_DEVICE_OFFSET) { + struct parisc_device *dev; + + /* Was the device already added by Firmware? */ + dev = find_device_by_addr(hpa); + if (!dev) { + path.mod = i; + dev = alloc_pa_dev(hpa, &path); + if (!dev) + continue; + + register_parisc_device(dev); + devices_found++; + } + walk_lower_bus(dev); } - walk_lower_bus(dev); - } + } while (!devices_found && hpa < io_io_high); } #define CENTRAL_BUS_ADDR (unsigned long) 0xfffffffffff80000 @@ -530,7 +552,9 @@ */ void walk_central_bus(void) { - walk_native_bus(CENTRAL_BUS_ADDR, &root); + walk_native_bus(CENTRAL_BUS_ADDR, + CENTRAL_BUS_ADDR + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET), + &root); } void fixup_child_irqs(struct parisc_device *parent, int base, diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/entry.S linux.21pre3-ac4/arch/parisc/kernel/entry.S --- linux.21pre3/arch/parisc/kernel/entry.S 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/entry.S 2003-01-06 15:38:40.000000000 +0000 @@ -759,32 +759,30 @@ .import do_softirq,code intr_do_softirq: - bl do_softirq,%r2 #ifdef __LP64__ ldo -16(%r30),%r29 /* Reference param save area */ -#else - nop #endif - b intr_check_resched - nop + ldil L%intr_check_resched, %r2 + b do_softirq + ldo R%intr_check_resched(%r2), %r2 .import schedule,code intr_do_resched: /* Only do reschedule if we are returning to user space */ LDREG PT_IASQ0(%r16), %r20 - CMPIB= 0,%r20,intr_restore /* backward */ + CMPIB= 0,%r20,intr_check_sig /* backward */ nop LDREG PT_IASQ1(%r16), %r20 - CMPIB= 0,%r20,intr_restore /* backward */ + CMPIB= 0,%r20,intr_check_sig /* backward */ nop #ifdef __LP64__ ldo -16(%r30),%r29 /* Reference param save area */ #endif - ldil L%intr_return, %r2 + ldil L%intr_check_sig, %r2 b schedule - ldo R%intr_return(%r2), %r2 /* return to intr_return, not here */ + ldo R%intr_check_sig(%r2), %r2 .import do_signal,code @@ -799,15 +797,14 @@ copy %r0, %r24 /* unsigned long in_syscall */ copy %r16, %r25 /* struct pt_regs *regs */ - ssm PSW_SM_I, %r0 + copy %r0, %r26 /* sigset_t *oldset = NULL */ #ifdef __LP64__ ldo -16(%r30),%r29 /* Reference param save area */ #endif - bl do_signal,%r2 - copy %r0, %r26 /* sigset_t *oldset = NULL */ + ldil L%intr_restore, %r2 + b do_signal + ldo R%intr_restore(%r2), %r2 - b intr_restore - nop /* * External interrupts. @@ -852,7 +849,7 @@ ldo -16(%r30),%r29 /* Reference param save area */ #endif b do_cpu_irq_mask - ldo R%intr_return(%r2), %r2 /* return to intr_return, not here */ + ldo R%intr_return(%r2), %r2 @@ -925,19 +922,16 @@ loadgp copy %r29, %r25 /* arg1 is pt_regs */ -#ifdef CONFIG_KWDB - copy %r29, %r3 /* KWDB - update frame pointer (gr3) */ -#endif #ifdef __LP64__ ldo -16(%r30),%r29 /* Reference param save area */ #endif - ldil L%intr_return, %r2 + ldil L%intr_restore, %r2 copy %r25, %r16 /* save pt_regs */ b handle_interruption - ldo R%intr_return(%r2), %r2 /* return to intr_return */ + ldo R%intr_restore(%r2), %r2 /* @@ -1319,9 +1313,9 @@ /* Get rid of prot bits and convert to page addr for idtlbt */ - extrd,s pte,35,4,t0 + extrd,s pte,35,4,t1 depdi 0,63,12,pte /* clear lower 12 bits */ - addi,= 1,t0,0 + addi,= 1,t1,0 extrd,u,*tr pte,56,25,pte extrd,s pte,56,25,pte /* bit 31:8 >> 8 */ idtlbt pte,prot @@ -1389,9 +1383,9 @@ /* Get rid of prot bits and convert to page addr for idtlbt */ - extrd,s pte,35,4,t0 + extrd,s pte,35,4,t1 depdi 0,63,12,pte /* clear lower 12 bits */ - addi,= 1,t0,0 + addi,= 1,t1,0 extrd,u,*tr pte,56,25,pte extrd,s pte,56,25,pte /* bit 31:8 >> 8 */ idtlbt pte,prot @@ -1642,9 +1636,9 @@ /* Get rid of prot bits and convert to page addr for iitlbt */ - extrd,s pte,35,4,t0 + extrd,s pte,35,4,t1 depdi 0,63,12,pte /* clear lower 12 bits */ - addi,= 1,t0,0 + addi,= 1,t1,0 extrd,u,*tr pte,56,25,pte extrd,s pte,56,25,pte /* bit 31:8 >> 8 */ iitlbt pte,prot @@ -1860,9 +1854,9 @@ extrd,u,*= pte,_PAGE_GATEWAY_BIT+32,1,r0 depdi 0,11,2,prot /* If Gateway, Set PL2 to 0 */ - extrd,s pte,35,4,t0 + extrd,s pte,35,4,t1 depdi 0,63,12,pte /* clear lower 12 bits */ - addi,= 1,t0,0 + addi,= 1,t1,0 extrd,u,*tr pte,56,25,pte extrd,s pte,56,25,pte /* bit 31:8 >> 8 */ idtlbt pte,prot @@ -2358,9 +2352,9 @@ STREG %r2,TASK_PT_IAOQ0(%r1) ldo 4(%r2),%r2 STREG %r2,TASK_PT_IAOQ1(%r1) - copy %r25,%r16 + b intr_restore - nop + copy %r25,%r16 .import do_softirq,code syscall_do_softirq: diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/firmware.c linux.21pre3-ac4/arch/parisc/kernel/firmware.c --- linux.21pre3/arch/parisc/kernel/firmware.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/firmware.c 2003-01-06 15:38:40.000000000 +0000 @@ -1,4 +1,4 @@ -/* arch/parisc/kernel/pdc.c - safe pdc access routines +/* arch/parisc/kernel/firmware.c - safe pdc access routines * * Copyright 1999 SuSE GmbH Nuernberg (Philipp Rumpf, prumpf@tux.org) * portions Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy) @@ -177,6 +177,45 @@ } /** + * pdc_pat_chassis_send_log - Sends a PDC PAT CHASSIS log message. + * @retval: -1 on error, 0 on success. Other value are PDC errors + * + * Must be correctly formatted or expect system crash + */ +#ifdef __LP64__ +int pdc_pat_chassis_send_log(unsigned long state, unsigned long data) +{ + if (!is_pdc_pat()) + return -1; + + int retval = 0; + + spin_lock_irq(&pdc_lock); + retval = mem_pdc_call(PDC_PAT_CHASSIS_LOG, PDC_PAT_CHASSIS_WRITE_LOG, __pa(&state), __pa(&data)); + spin_unlock_irq(&pdc_lock); + + return retval; +} +#endif + +/** + * pdc_chassis_disp - Updates display + * @retval: -1 on error, 0 on success + * + * Works on old PDC only (E class, others?) + */ +int pdc_chassis_disp(unsigned long disp) +{ + int retval = 0; + + spin_lock_irq(&pdc_lock); + retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_DISP, disp); + spin_unlock_irq(&pdc_lock); + + return retval; +} + +/** * pdc_coproc_cfg - To identify coprocessors attached to the processor. * @pdc_coproc_info: Return buffer address. * @@ -507,12 +546,11 @@ /* BCJ-XXXX series boxes. E.G. "9000/785/C3000" */ #define IS_SPROCKETS() (strlen(boot_cpu_data.pdc.sys_model_name) == 14 && \ - strncmp(boot_cpu_data.pdc.sys_model_name, "9000/785", 9) == 0) + strncmp(boot_cpu_data.pdc.sys_model_name, "9000/785", 8) == 0) retval = mem_pdc_call(PDC_INITIATOR, PDC_GET_INITIATOR, __pa(pdc_result), __pa(hwpath)); - if (retval >= PDC_OK) { *scsi_id = (unsigned char) pdc_result[0]; @@ -534,10 +572,12 @@ ** pdc_result[3] PDC suggested SCSI rate */ + /* + ** XXX REVISIT: Doesn't look like PAT PDC does the same. + ** Problem is A500 also exports 50-pin SE SCSI port. + */ if (IS_SPROCKETS()) { /* - ** Revisit: PAT PDC do the same thing? - ** A500 also exports 50-pin SE SCSI. ** 0 == 8-bit ** 1 == 16-bit */ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/head64.S linux.21pre3-ac4/arch/parisc/kernel/head64.S --- linux.21pre3/arch/parisc/kernel/head64.S 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/head64.S 2003-01-06 15:38:40.000000000 +0000 @@ -24,7 +24,7 @@ #include /* for PDC_PSW defines */ - .level 2.0 + .level 2.0w .section .initcall.init .align 4 diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/ioctl32.c linux.21pre3-ac4/arch/parisc/kernel/ioctl32.c --- linux.21pre3/arch/parisc/kernel/ioctl32.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/ioctl32.c 2003-01-06 15:38:40.000000000 +0000 @@ -2986,6 +2986,9 @@ COMPATIBLE_IOCTL(BLKFRASET) COMPATIBLE_IOCTL(BLKSECTSET) COMPATIBLE_IOCTL(BLKSSZGET) +COMPATIBLE_IOCTL(BLKBSZGET) +COMPATIBLE_IOCTL(BLKBSZSET) +COMPATIBLE_IOCTL(BLKGETSIZE64) /* RAID */ COMPATIBLE_IOCTL(RAID_VERSION) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/irq.c linux.21pre3-ac4/arch/parisc/kernel/irq.c --- linux.21pre3/arch/parisc/kernel/irq.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/irq.c 2003-01-06 15:38:40.000000000 +0000 @@ -201,7 +201,7 @@ { #ifdef CONFIG_PROC_FS char *p = buf; - unsigned int regnr; + unsigned int regnr = 0; p += sprintf(p, " "); #ifdef CONFIG_SMP diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/lasimap.map linux.21pre3-ac4/arch/parisc/kernel/lasimap.map --- linux.21pre3/arch/parisc/kernel/lasimap.map 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/lasimap.map 1970-01-01 01:00:00.000000000 +0100 @@ -1,322 +0,0 @@ -# HP 712 kernel keymap. This uses 7 modifier combinations. - -keymaps 0-2,4-5,8,12 -# ie, plain, Shift, AltGr, Control, Control+Shift, Alt and Control+Alt - - -# Change the above line into -# keymaps 0-2,4-6,8,12 -# in case you want the entries -# altgr control keycode 83 = Boot -# altgr control keycode 111 = Boot -# below. -# -# In fact AltGr is used very little, and one more keymap can -# be saved by mapping AltGr to Alt (and adapting a few entries): -# keycode 100 = Alt -# -keycode 1 = F9 F19 Console_21 - control keycode 1 = F9 - alt keycode 1 = Console_9 - control alt keycode 1 = Console_9 -keycode 2 = -keycode 3 = F5 F15 Console_17 - control keycode 3 = F5 - alt keycode 3 = Console_5 - control alt keycode 3 = Console_5 -keycode 4 = F3 F13 Console_15 - control keycode 4 = F3 - alt keycode 4 = Console_3 - control alt keycode 4 = Console_3 -keycode 5 = F1 F11 Console_13 - control keycode 5 = F1 - alt keycode 5 = Console_1 - control alt keycode 5 = Console_1 -keycode 6 = F2 F12 Console_14 - control keycode 6 = F2 - alt keycode 6 = Console_2 - control alt keycode 6 = Console_2 -keycode 7 = F12 F12 Console_24 - control keycode 7 = F12 - alt keycode 7 = Console_12 - control alt keycode 7 = Console_12 -keycode 8 = -keycode 9 = F10 F20 Console_22 - control keycode 9 = F10 - alt keycode 9 = Console_10 - control alt keycode 9 = Console_10 -keycode 10 = F8 F18 Console_20 - control keycode 10 = F8 - alt keycode 10 = Console_8 - control alt keycode 10 = Console_8 -keycode 11 = F6 F16 Console_18 - control keycode 11 = F6 - alt keycode 11 = Console_6 - control alt keycode 11 = Console_6 -keycode 12 = F4 F14 Console_16 - control keycode 12 = F4 - alt keycode 12 = Console_4 - control alt keycode 12 = Console_4 -keycode 13 = Tab Tab - alt keycode 13 = Meta_Tab -keycode 14 = grave asciitilde - control keycode 14 = nul - alt keycode 14 = Meta_grave -keycode 15 = -keycode 16 = -keycode 17 = Alt -keycode 18 = Shift -keycode 19 = -keycode 20 = Control -keycode 21 = q -keycode 22 = one exclam exclam -keycode 23 = -keycode 24 = -keycode 25 = -keycode 26 = z -keycode 27 = s -keycode 28 = a - altgr keycode 28 = Hex_A -keycode 29 = w -keycode 30 = two at at -keycode 31 = -keycode 32 = -keycode 33 = c - altgr keycode 46 = Hex_C -keycode 34 = x -keycode 35 = d - altgr keycode 35 = Hex_D -keycode 36 = e - altgr keycode 36 = Hex_E -keycode 37 = four dollar -keycode 38 = three numbersign -keycode 39 = -keycode 40 = -keycode 41 = -keycode 42 = v -keycode 43 = f - altgr keycode 43 = Hex_F -keycode 44 = t -keycode 45 = r -keycode 46 = five percent -keycode 47 = -keycode 48 = -keycode 49 = n -keycode 50 = b - altgr keycode 50 = Hex_B -keycode 51 = h -keycode 52 = g -keycode 53 = y -keycode 54 = six asciicircum -keycode 55 = -keycode 56 = -keycode 57 = -keycode 58 = m -keycode 59 = j -keycode 60 = u -keycode 61 = seven ampersand -keycode 62 = eight asterisk asterisk -keycode 63 = -keycode 64 = -keycode 65 = comma less - alt keycode 65 = Meta_comma -keycode 66 = k -keycode 67 = i -keycode 68 = o -keycode 69 = zero parenright bracketright -keycode 70 = nine parenleft bracketleft -keycode 71 = -keycode 72 = -keycode 73 = period greater - control keycode 73 = Compose - alt keycode 73 = Meta_period -keycode 74 = slash question - control keycode 74 = Delete - alt keycode 53 = Meta_slash -keycode 75 = l -keycode 76 = semicolon colon - alt keycode 39 = Meta_semicolon -keycode 77 = p -keycode 78 = minus underscore -keycode 79 = -keycode 80 = -keycode 81 = -keycode 82 = apostrophe quotedbl - control keycode 82 = Control_g - alt keycode 40 = Meta_apostrophe -keycode 83 = -keycode 84 = bracketleft braceleft - control keycode 84 = Escape - alt keycode 26 = Meta_bracketleft -keycode 85 = equal plus -keycode 86 = -keycode 87 = -keycode 88 = Caps_Lock -keycode 88 = -keycode 89 = -keycode 89 = -keycode 89 = -keycode 90 = Return - alt keycode 90 = Meta_Control_m -keycode 91 = bracketright braceright asciitilde - control keycode 91 = Control_bracketright - alt keycode 91 = Meta_bracketright -keycode 92 = -keycode 93 = backslash bar - control keycode 43 = Control_backslash - alt keycode 43 = Meta_backslash -keycode 94 = -keycode 95 = -keycode 96 = -keycode 97 = -keycode 98 = -keycode 99 = -keycode 100 = -keycode 101 = -keycode 102 = BackSpace -keycode 103 = -keycode 104 = -keycode 105 = KP_1 - alt keycode 105 = Ascii_1 - altgr keycode 105 = Hex_1 -keycode 106 = -keycode 107 = KP_4 - alt keycode 107 = Ascii_4 - altgr keycode 107 = Hex_4 -keycode 108 = KP_7 - alt keycode 108 = Ascii_7 - altgr keycode 108 = Hex_7 -keycode 109 = -keycode 110 = -keycode 111 = -keycode 112 = KP_0 - alt keycode 82 = Ascii_0 - altgr keycode 82 = Hex_0 -keycode 113 = KP_Period -keycode 114 = KP_2 - alt keycode 114 = Ascii_2 - altgr keycode 114 = Hex_2 -keycode 115 = KP_5 - alt keycode 115 = Ascii_5 - altgr keycode 115 = Hex_5 -keycode 116 = KP_6 - alt keycode 116 = Ascii_6 - altgr keycode 116 = Hex_6 -keycode 117 = KP_8 - alt keycode 117 = Ascii_8 - altgr keycode 117 = Hex_8 -keycode 118 = Escape -keycode 119 = -keycode 120 = F11 -keycode 121 = KP_Add -keycode 122 = KP_3 - alt keycode 122 = Ascii_3 - altgr keycode 122 = Hex_3 -keycode 123 = KP_Subtract -keycode 124 = KP_Multiply -keycode 125 = KP_9 - alt keycode 125 = Ascii_9 - altgr keycode 125 = Hex_9 -keycode 126 = -# 131!! -keycode 127 = F7 F17 Console_19 - control keycode 127 = F7 - alt keycode 127 = Console_7 - control alt keycode 127 = Console_7 - -string F1 = "\033[[A" -string F2 = "\033[[B" -string F3 = "\033[[C" -string F4 = "\033[[D" -string F5 = "\033[[E" -string F6 = "\033[17~" -string F7 = "\033[18~" -string F8 = "\033[19~" -string F9 = "\033[20~" -string F10 = "\033[21~" -string F11 = "\033[23~" -string F12 = "\033[24~" -string F13 = "\033[25~" -string F14 = "\033[26~" -string F15 = "\033[28~" -string F16 = "\033[29~" -string F17 = "\033[31~" -string F18 = "\033[32~" -string F19 = "\033[33~" -string F20 = "\033[34~" -string Find = "\033[1~" -string Insert = "\033[2~" -string Remove = "\033[3~" -string Select = "\033[4~" -string Prior = "\033[5~" -string Next = "\033[6~" -string Macro = "\033[M" -string Pause = "\033[P" -compose '`' 'A' to 'À' -compose '`' 'a' to 'à' -compose '\'' 'A' to 'Á' -compose '\'' 'a' to 'á' -compose '^' 'A' to 'Â' -compose '^' 'a' to 'â' -compose '~' 'A' to 'Ã' -compose '~' 'a' to 'ã' -compose '"' 'A' to 'Ä' -compose '"' 'a' to 'ä' -compose 'O' 'A' to 'Å' -compose 'o' 'a' to 'å' -compose '0' 'A' to 'Å' -compose '0' 'a' to 'å' -compose 'A' 'A' to 'Å' -compose 'a' 'a' to 'å' -compose 'A' 'E' to 'Æ' -compose 'a' 'e' to 'æ' -compose ',' 'C' to 'Ç' -compose ',' 'c' to 'ç' -compose '`' 'E' to 'È' -compose '`' 'e' to 'è' -compose '\'' 'E' to 'É' -compose '\'' 'e' to 'é' -compose '^' 'E' to 'Ê' -compose '^' 'e' to 'ê' -compose '"' 'E' to 'Ë' -compose '"' 'e' to 'ë' -compose '`' 'I' to 'Ì' -compose '`' 'i' to 'ì' -compose '\'' 'I' to 'Í' -compose '\'' 'i' to 'í' -compose '^' 'I' to 'Î' -compose '^' 'i' to 'î' -compose '"' 'I' to 'Ï' -compose '"' 'i' to 'ï' -compose '-' 'D' to 'Ð' -compose '-' 'd' to 'ð' -compose '~' 'N' to 'Ñ' -compose '~' 'n' to 'ñ' -compose '`' 'O' to 'Ò' -compose '`' 'o' to 'ò' -compose '\'' 'O' to 'Ó' -compose '\'' 'o' to 'ó' -compose '^' 'O' to 'Ô' -compose '^' 'o' to 'ô' -compose '~' 'O' to 'Õ' -compose '~' 'o' to 'õ' -compose '"' 'O' to 'Ö' -compose '"' 'o' to 'ö' -compose '/' 'O' to 'Ø' -compose '/' 'o' to 'ø' -compose '`' 'U' to 'Ù' -compose '`' 'u' to 'ù' -compose '\'' 'U' to 'Ú' -compose '\'' 'u' to 'ú' -compose '^' 'U' to 'Û' -compose '^' 'u' to 'û' -compose '"' 'U' to 'Ü' -compose '"' 'u' to 'ü' -compose '\'' 'Y' to 'Ý' -compose '\'' 'y' to 'ý' -compose 'T' 'H' to 'Þ' -compose 't' 'h' to 'þ' -compose 's' 's' to 'ß' -compose '"' 'y' to 'ÿ' -compose 's' 'z' to 'ß' -compose 'i' 'j' to 'ÿ' diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/lba_pci.c linux.21pre3-ac4/arch/parisc/kernel/lba_pci.c --- linux.21pre3/arch/parisc/kernel/lba_pci.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/lba_pci.c 2003-01-06 15:38:40.000000000 +0000 @@ -735,47 +735,11 @@ bus->resource[0] = &(ldev->hba.io_space); bus->resource[1] = &(ldev->hba.lmmio_space); } else { - /* KLUGE ALERT! - ** PCI-PCI Bridge resource munging. - ** This hack should go away in the near future. - ** It's based on the Alpha port. - */ - int i; - u16 cmd; - - for (i = 0; i < 4; i++) { - bus->resource[i] = - &bus->self->resource[PCI_BRIDGE_RESOURCES+i]; - bus->resource[i]->name = bus->name; - } -#if 0 - bus->resource[0]->flags |= pci_bridge_check_io(bus->self); -#else - bus->resource[0]->flags |= IORESOURCE_IO; -#endif - bus->resource[1]->flags |= IORESOURCE_MEM; - bus->resource[2]->flags = 0; /* Don't support prefetchable */ - bus->resource[3]->flags = 0; /* not used */ - - /* - ** If the PPB is enabled (ie already configured) then - ** just read those values. - */ - (void) lba_cfg_read16(bus->self, PCI_COMMAND, &cmd); - if (cmd & (PCI_COMMAND_MEMORY | PCI_COMMAND_IO)) { - pci_read_bridge_bases(bus); - } else { - /* Not configured. - ** For now, propogate HBA limits to the bus; - ** PCI will adjust them later. - */ - bus->resource[0]->end = ldev->hba.io_space.end; - bus->resource[1]->end = ldev->hba.lmmio_space.end; - } + pci_read_bridge_bases(bus); - /* Turn off downstream PF memory address range by default */ - bus->resource[2]->start = 1024*1024; - bus->resource[2]->end = bus->resource[2]->start - 1; + /* Turn off downstream PreFetchable Memory range by default */ + bus->resource[2]->start = 0; + bus->resource[2]->end = 0; } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/led.c linux.21pre3-ac4/arch/parisc/kernel/led.c --- linux.21pre3/arch/parisc/kernel/led.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/led.c 2003-01-06 15:38:40.000000000 +0000 @@ -352,7 +352,8 @@ static unsigned long led_net_rx_counter, led_net_tx_counter; static void led_get_net_stats(int addvalue) -{ +{ +#ifdef CONFIG_NET static unsigned long rx_total_last, tx_total_last; unsigned long rx_total, tx_total; struct net_device *dev; @@ -383,6 +384,7 @@ rx_total_last += rx_total; tx_total_last += tx_total; +#endif } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/Makefile linux.21pre3-ac4/arch/parisc/kernel/Makefile --- linux.21pre3/arch/parisc/kernel/Makefile 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/Makefile 2003-01-06 15:38:40.000000000 +0000 @@ -24,7 +24,7 @@ pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \ ptrace.o hardware.o inventory.o drivers.o semaphore.o \ signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \ - processor.o power.o + processor.o power.o pdc_chassis.o export-objs := parisc_ksyms.o superio.o keyboard.o diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/parisc_ksyms.c linux.21pre3-ac4/arch/parisc/kernel/parisc_ksyms.c --- linux.21pre3/arch/parisc/kernel/parisc_ksyms.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/parisc_ksyms.c 2003-01-06 15:38:40.000000000 +0000 @@ -232,3 +232,11 @@ EXPORT_SYMBOL_NOVERS($$dyncall); #endif +#ifdef CONFIG_SMP +#ifdef CONFIG_DEBUG_SPINLOCK +#include +EXPORT_SYMBOL(spin_lock); +EXPORT_SYMBOL(spin_unlock); +EXPORT_SYMBOL(spin_trylock); +#endif +#endif diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/pci.c linux.21pre3-ac4/arch/parisc/kernel/pci.c --- linux.21pre3/arch/parisc/kernel/pci.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/pci.c 2003-01-06 15:38:40.000000000 +0000 @@ -306,13 +306,13 @@ (32) for primary and secondary buses. */ pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32); - /* Read bridge control */ + /* Read bridge control - force SERR/PERR on */ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bus->bridge_ctl); + bus->bridge_ctl |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bus->bridge_ctl); } - /* Set FBB bit for now. Disable ISA IO forwarding. Enable PERR/SERR */ - bus->bridge_ctl |= PCI_BRIDGE_CTL_FAST_BACK | - PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR; + bus->bridge_ctl |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR; } @@ -390,7 +390,7 @@ */ void __devinit pcibios_align_resource(void *data, struct resource *res, - unsigned long size, unsigned long alignment) + unsigned long size, unsigned long alignment) { unsigned long mask, align; @@ -407,7 +407,7 @@ align = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM; /* Align to largest of MIN or input size */ - mask = MAX(size, align) - 1; + mask = MAX(alignment, align) - 1; res->start += mask; res->start &= ~mask; @@ -420,7 +420,7 @@ int __devinit -pcibios_enable_device(struct pci_dev *dev) +pcibios_enable_device(struct pci_dev *dev, int mask) { u16 cmd; int idx; @@ -438,6 +438,11 @@ */ for (idx=0; idxresource[idx]; + + /* only setup requested resources */ + if (!(mask & (1<flags & IORESOURCE_IO) cmd |= PCI_COMMAND_IO; if (r->flags & IORESOURCE_MEM) @@ -454,9 +459,11 @@ */ cmd |= (PCI_COMMAND_SERR | PCI_COMMAND_PARITY); +#if 0 /* If bridge/bus controller has FBB enabled, child must too. */ if (dev->bus->bridge_ctl & PCI_BRIDGE_CTL_FAST_BACK) cmd |= PCI_COMMAND_FAST_BACK; +#endif DBGC("PCIBIOS: Enabling device %s cmd 0x%04x\n", dev->slot_name, cmd); pci_write_config_word(dev, PCI_COMMAND, cmd); @@ -478,6 +485,19 @@ #endif } +static void __devinit +pcibios_enable_ppb(struct pci_bus *bus) +{ + struct list_head *list; + + /* find a leaf of the PCI bus tree. */ + list_for_each(list, &bus->children) + pcibios_enable_ppb(pci_bus_b(list)); + + if (bus->self && (bus->self->class >> 8) == PCI_CLASS_BRIDGE_PCI) + pdev_enable_device(bus->self); +} + /* ** Mostly copied from drivers/pci/setup-bus.c:pci_assign_unassigned_resources() @@ -486,16 +506,13 @@ pcibios_assign_unassigned_resources(struct pci_bus *bus) { /* from drivers/pci/setup-bus.c */ - extern void pbus_assign_resources(struct pci_bus *bus, struct pbus_set_ranges_data *ranges); + extern void pbus_size_bridges(struct pci_bus *bus); + extern void pbus_assign_resources(struct pci_bus *bus); - struct pbus_set_ranges_data ranges; + pbus_size_bridges(bus); + pbus_assign_resources(bus); - ranges.io_end = ranges.io_start - = bus->resource[0]->start + PCIBIOS_MIN_IO; - ranges.mem_end = ranges.mem_start - = bus->resource[1]->start + PCIBIOS_MIN_MEM; - ranges.found_vga = 0; - pbus_assign_resources(bus, &ranges); + pcibios_enable_ppb(bus); } /* diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/pdc_chassis.c linux.21pre3-ac4/arch/parisc/kernel/pdc_chassis.c --- linux.21pre3/arch/parisc/kernel/pdc_chassis.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/parisc/kernel/pdc_chassis.c 2003-01-06 15:38:40.000000000 +0000 @@ -0,0 +1,205 @@ +/* + * arch/parisc/kernel/pdc_chassis.c + * + * Copyright (C) 2002 Laurent Canet + * Copyright (C) 2002 Thibaut Varene + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#undef PDC_CHASSIS_DEBUG +#ifdef PDC_CHASSIS_DEBUG +#define DPRINTK(fmt, args...) printk(fmt, ## args) +#else +#define DPRINTK(fmt, args...) +#endif + +#include +#include +#include +#include + +#include +#include + +static int pdc_chassis_old = 0; + + +/** + * pdc_chassis_checkold() - Checks for old PDC_CHASSIS compatibility + * @pdc_chassis_old: 1 if old pdc chassis style + * + * Currently, only E class and A180 are known to work with this. + * Inspired by Christoph Plattner + */ + +static void __init pdc_chassis_checkold(void) +{ + switch(CPU_HVERSION) { + case 0x480: /* E25 */ + case 0x481: /* E35 */ + case 0x482: /* E45 */ + case 0x483: /* E55 */ + case 0x516: /* A180 */ + pdc_chassis_old = 1; + break; + + default: + break; + } + DPRINTK(KERN_DEBUG "%s: pdc_chassis_checkold(); pdc_chassis_old = %d\n", __FILE__, pdc_chassis_old); +} + + +/** + * pdc_chassis_panic_event() - Called by the panic handler. + * + * As soon as a panic occurs, we should inform the PDC. + */ + +static int pdc_chassis_panic_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC); + return NOTIFY_DONE; +} + + +static struct notifier_block pdc_chassis_panic_block = { + notifier_call: pdc_chassis_panic_event, + priority: INT_MAX, +}; + + +/** + * parisc_reboot_event() - Called by the reboot handler. + * + * As soon as a reboot occurs, we should inform the PDC. + */ + +static int pdc_chassis_reboot_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN); + return NOTIFY_DONE; +} + + +static struct notifier_block pdc_chassis_reboot_block = { + notifier_call: pdc_chassis_reboot_event, + priority: INT_MAX, +}; + + +/** + * parisc_pdc_chassis_init() - Called at boot time. + */ + +void __init parisc_pdc_chassis_init(void) +{ + DPRINTK(KERN_DEBUG "%s: parisc_pdc_chassis_init()\n", __FILE__); + + /* initialize panic notifier chain */ + notifier_chain_register(&panic_notifier_list, &pdc_chassis_panic_block); + + /* initialize reboot notifier chain */ + register_reboot_notifier(&pdc_chassis_reboot_block); + + /* Check for old LED Panel */ + pdc_chassis_checkold(); +} + + +/** + * pdc_chassis_send_status() - Sends a predefined message to the chassis, + * and changes the front panel LEDs according to the new system state + * @retval: PDC call return value. + * + * Only machines with 64 bits PDC PAT and E-class are supported atm. + * + * returns 0 if no error, -1 if no supported PDC is present or invalid message, + * else returns the appropriate PDC error code. + * + * For a list of predefined messages, see asm-parisc/pdc_chassis.h + */ + +int pdc_chassis_send_status(int message) +{ + /* Maybe we should do that in an other way ? */ + int retval = 0; + + DPRINTK(KERN_DEBUG "%s: pdc_chassis_send_status(%d)\n", __FILE__, message); + +#ifdef __LP64__ /* pdc_pat_chassis_send_log is defined only when #ifdef __LP64__ */ + if (is_pdc_pat()) { + switch(message) { + case PDC_CHASSIS_DIRECT_BSTART: + retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_BSTART, PDC_CHASSIS_LSTATE_RUN_NORMAL); + break; + + case PDC_CHASSIS_DIRECT_BCOMPLETE: + retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_BCOMPLETE, PDC_CHASSIS_LSTATE_RUN_NORMAL); + break; + + case PDC_CHASSIS_DIRECT_SHUTDOWN: + retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_SHUTDOWN, PDC_CHASSIS_LSTATE_NONOS); + break; + + case PDC_CHASSIS_DIRECT_PANIC: + retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_PANIC, PDC_CHASSIS_LSTATE_RUN_CRASHREC); + break; + + case PDC_CHASSIS_DIRECT_LPMC: + retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_LPMC, PDC_CHASSIS_LSTATE_RUN_SYSINT); + break; + + case PDC_CHASSIS_DIRECT_HPMC: + retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_HPMC, PDC_CHASSIS_LSTATE_RUN_NCRIT); + break; + + default: + retval = -1; + } + } else retval = -1; +#else + if (pdc_chassis_old) { + switch (message) { + case PDC_CHASSIS_DIRECT_BSTART: + case PDC_CHASSIS_DIRECT_BCOMPLETE: + retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_RUN)); + break; + + case PDC_CHASSIS_DIRECT_SHUTDOWN: + retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_SHUT)); + break; + + case PDC_CHASSIS_DIRECT_HPMC: + case PDC_CHASSIS_DIRECT_PANIC: + retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_FLT)); + break; + + case PDC_CHASSIS_DIRECT_LPMC: + retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_WARN)); + break; + + default: + retval = -1; + } + } else retval = -1; +#endif + + return retval; +} diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/pdc_cons.c linux.21pre3-ac4/arch/parisc/kernel/pdc_cons.c --- linux.21pre3/arch/parisc/kernel/pdc_cons.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/pdc_cons.c 2003-01-06 15:38:40.000000000 +0000 @@ -51,33 +51,33 @@ return 0; } -#ifdef CONFIG_PDC_CONSOLE +#if defined(CONFIG_PDC_CONSOLE) || defined(CONFIG_SERIAL_MUX) +#define PDC_CONSOLE_DEVICE pdc_console_device static kdev_t pdc_console_device (struct console *c) { - return MKDEV(PDCCONS_MAJOR, 0); + return MKDEV(MUX_MAJOR, 0); } -#endif - -#ifdef CONFIG_PDC_CONSOLE -#define PDC_CONSOLE_DEVICE pdc_console_device -#else +#else #define PDC_CONSOLE_DEVICE NULL #endif static struct console pdc_cons = { name: "ttyB", write: pdc_console_write, - device: PDC_CONSOLE_DEVICE, +#warning UPSTREAM 2.4.19 removed the next 4 lines but we did not + read: NULL, + device: PDC_CONSOLE_DEVICE, + unblank: NULL, setup: pdc_console_setup, flags: CON_BOOT|CON_PRINTBUFFER|CON_ENABLED, index: -1, }; static int pdc_console_initialized; - extern unsigned long con_start; /* kernel/printk.c */ extern unsigned long log_end; /* kernel/printk.c */ - + + static void pdc_console_init_force(void) { if (pdc_console_initialized) @@ -94,7 +94,7 @@ void pdc_console_init(void) { -#if defined(EARLY_BOOTUP_DEBUG) || defined(CONFIG_PDC_CONSOLE) +#if defined(EARLY_BOOTUP_DEBUG) || defined(CONFIG_PDC_CONSOLE) || defined(CONFIG_SERIAL_MUX) pdc_console_init_force(); #endif #ifdef EARLY_BOOTUP_DEBUG diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/power.c linux.21pre3-ac4/arch/parisc/kernel/power.c --- linux.21pre3/arch/parisc/kernel/power.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/power.c 2003-01-06 15:38:40.000000000 +0000 @@ -44,15 +44,12 @@ #include #include #include -#include -#include #include #include #include #include #include -#include #include @@ -144,11 +141,7 @@ DECLARE_TASKLET_DISABLED(power_tasklet, NULL, 0); /* soft power switch enabled/disabled */ -#ifdef CONFIG_PROC_FS -static int pwrsw_enabled = 1; -#else -#define pwrsw_enabled (1) -#endif +int pwrsw_enabled = 1; /* * On gecko style machines (e.g. 712/xx and 715/xx) @@ -209,90 +202,6 @@ -/* - * /proc filesystem support - */ - -#ifdef CONFIG_SYSCTL -static int power_proc_read(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - char *out = page; - int len; - - out += sprintf(out, "Software power switch support: "); - out += sprintf(out, pwrsw_enabled ? "enabled (1)" : "disabled (0)" ); - out += sprintf(out, "\n"); - - len = out - page - off; - if (len < count) { - *eof = 1; - if (len <= 0) return 0; - } else { - len = count; - } - *start = page + off; - return len; -} - -static int power_proc_write(struct file *file, const char *buf, - unsigned long count, void *data) -{ - char *cur, lbuf[count]; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - memset(lbuf, 0, count); - - copy_from_user(lbuf, buf, count); - cur = lbuf; - - /* skip initial spaces */ - while (*cur && isspace(*cur)) - cur++; - - switch (*cur) { - case '0': pwrsw_enabled = 0; - break; - case '1': pwrsw_enabled = 1; - break; - default: printk(KERN_CRIT "/proc/" SYSCTL_FILENAME - ": Parse error: only '0' or '1' allowed!\n"); - return -EINVAL; - } /* switch() */ - - return count; -} - -static struct proc_dir_entry *ent; - -static void __init power_create_procfs(void) -{ - if (!power_tasklet.func) - return; - - ent = create_proc_entry(SYSCTL_FILENAME, S_IFREG|S_IRUGO|S_IWUSR, 0); - if (!ent) return; - - ent->nlink = 1; - ent->read_proc = power_proc_read; - ent->write_proc = power_proc_write; - ent->owner = THIS_MODULE; -} - -static void __exit power_remove_procfs(void) -{ - remove_proc_entry(SYSCTL_FILENAME, NULL); -} - -#else -#define power_create_procfs() do { } while (0) -#define power_remove_procfs() do { } while (0) -#endif /* CONFIG_SYSCTL */ - - - /* parisc_panic_event() is called by the panic handler. * As soon as a panic occurs, our tasklets above will not be * executed any longer. This function then re-enables the @@ -346,7 +255,6 @@ /* Register a call for panic conditions. */ notifier_chain_register(&panic_notifier_list, &parisc_panic_block); - power_create_procfs(); tasklet_enable(&power_tasklet); return 0; @@ -359,7 +267,6 @@ tasklet_disable(&power_tasklet); notifier_chain_unregister(&panic_notifier_list, &parisc_panic_block); - power_remove_procfs(); power_tasklet.func = NULL; pdc_soft_power_button(0); } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/process.c linux.21pre3-ac4/arch/parisc/kernel/process.c --- linux.21pre3/arch/parisc/kernel/process.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/process.c 2003-01-06 15:38:40.000000000 +0000 @@ -36,6 +36,7 @@ #include #include #include +#include int hlt_counter; @@ -118,6 +119,9 @@ /* "Normal" system reset */ pdc_do_reset(); + /* set up a new led state on systems shipped with a LED State panel */ + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN); + /* Nope...box should reset with just CMD_RESET now */ gsc_writel(CMD_RESET, COMMAND_GLOBAL); @@ -150,6 +154,8 @@ * following call will immediately power off. */ pdc_soft_power_button(0); + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN); + /* It seems we have no way to power the system off via * software. The user has to press the button himself. */ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/processor.c linux.21pre3-ac4/arch/parisc/kernel/processor.c --- linux.21pre3/arch/parisc/kernel/processor.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/processor.c 2003-01-06 15:38:40.000000000 +0000 @@ -1,4 +1,4 @@ -/* $Id: processor.c,v 1.13 2002/07/04 19:33:01 grundler Exp $ +/* $Id: processor.c,v 1.14 2002/09/13 06:46:28 grundler Exp $ * * Initial setup-routines for HP 9000 based hardware. * @@ -77,6 +77,8 @@ unsigned long txn_addr; unsigned long cpuid; struct cpuinfo_parisc *p; + extern struct irq_region_ops cpu_irq_ops; /* arch/parisc...irq.c */ + extern struct irqaction cpu_irq_actions[]; /* arch/parisc...irq.c */ #ifndef CONFIG_SMP if (boot_cpu_data.cpu_count > 0) { @@ -167,12 +169,24 @@ ** p->state = STATE_RENDEZVOUS; */ - /* - ** itimer and ipi IRQ handlers are statically initialized in - ** arch/parisc/kernel/irq.c. ie Don't need to register them. - */ - p->region = irq_region[IRQ_FROM_REGION(CPU_IRQ_REGION)]; +#if 0 + /* CPU 0 IRQ table is statically allocated/initialized */ + if (cpuid) { + struct irqaction actions[]; + + /* + ** itimer and ipi IRQ handlers are statically initialized in + ** arch/parisc/kernel/irq.c. ie Don't need to register them. + */ + actions = kmalloc(sizeof(struct irqaction)*MAX_CPU_IRQ, GFP_ATOMIC); + if (!actions) { + /* not getting it's own table, share with monarch */ + actions = cpu_irq_actions[0]; + } + cpu_irq_actions[cpuid] = actions; + } +#endif return 0; } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/sba_iommu.c linux.21pre3-ac4/arch/parisc/kernel/sba_iommu.c --- linux.21pre3/arch/parisc/kernel/sba_iommu.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/sba_iommu.c 2003-01-06 15:38:40.000000000 +0000 @@ -812,10 +812,8 @@ return(0); } - dev->dma_mask = mask; /* save it */ - /* only support 32-bit PCI devices - no DAC support (yet) */ - return((int) (mask == 0xffffffff)); + return((int) (mask == 0xffffffffUL)); } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/setup.c linux.21pre3-ac4/arch/parisc/kernel/setup.c --- linux.21pre3/arch/parisc/kernel/setup.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/setup.c 2003-01-06 15:38:40.000000000 +0000 @@ -41,6 +41,7 @@ #include #include #include +#include #include /* for pa7300lc_init() proto */ #define COMMAND_LINE_SIZE 1024 @@ -283,6 +284,11 @@ parisc_init_resources(); do_device_inventory(); /* probe for hardware */ + parisc_pdc_chassis_init(); + + /* set up a new led state on systems shipped LED State panel */ + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART); + processor_init(); printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n", boot_cpu_data.cpu_count, diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/syscall.S linux.21pre3-ac4/arch/parisc/kernel/syscall.S --- linux.21pre3/arch/parisc/kernel/syscall.S 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/syscall.S 2003-01-06 15:38:40.000000000 +0000 @@ -593,11 +593,18 @@ ENTRY_DIFF(ftruncate64) /* 200 */ ENTRY_SAME(getdents64) ENTRY_DIFF(fcntl64) - ENTRY_SAME(ni_syscall) /* attrctl */ - ENTRY_SAME(ni_syscall) /* acl_get */ - ENTRY_SAME(ni_syscall) /* acl_set */ - ENTRY_SAME(gettid) +#ifdef CONFIG_XFS_FS + ENTRY_SAME(attrctl) + ENTRY_SAME(acl_get) + ENTRY_SAME(acl_set) /* 205 */ +#else + ENTRY_SAME(ni_syscall) + ENTRY_SAME(ni_syscall) + ENTRY_SAME(ni_syscall) /* 205 */ +#endif + ENTRY_SAME(gettid) ENTRY_SAME(readahead) + ENTRY_SAME(tkill) .end diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/sys_parisc32.c linux.21pre3-ac4/arch/parisc/kernel/sys_parisc32.c --- linux.21pre3/arch/parisc/kernel/sys_parisc32.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/sys_parisc32.c 2003-01-06 15:38:40.000000000 +0000 @@ -2759,20 +2759,9 @@ asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg) { - switch (cmd) { - case F_GETLK64: - cmd = F_GETLK; - break; - case F_SETLK64: - cmd = F_SETLK; - break; - case F_SETLKW64: - cmd = F_SETLKW; - break; - default: - break; - } - return sys_fcntl(fd, cmd, arg); + if (cmd >= F_GETLK64 && cmd <= F_SETLKW64) + return sys_fcntl(fd, cmd + F_GETLK - F_GETLK64, arg); + return sys32_fcntl(fd, cmd, arg); } asmlinkage int sys32_pread(int fd, void *buf, size_t count, unsigned int high, unsigned int low) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/traps.c linux.21pre3-ac4/arch/parisc/kernel/traps.c --- linux.21pre3/arch/parisc/kernel/traps.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/traps.c 2003-01-06 15:38:40.000000000 +0000 @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -34,17 +35,10 @@ #include #include #include +#include #include "../math-emu/math-emu.h" /* for handle_fpe() */ -#ifdef CONFIG_KWDB -#include /* for BI2_KGDB_GDB */ -#include /* for __() */ -#include /* for struct save_state */ -#include /* for pt_regs_to_ssp and ssp_to_pt_regs */ -#include /* for I_BRK_INST */ -#endif /* CONFIG_KWDB */ - #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */ /* dumped to the console via printk) */ @@ -66,6 +60,99 @@ #define RFMT "%08lx" #endif +static int kstack_depth_to_print = 24; +extern struct module *module_list; +extern struct module kernel_module; + +static inline int kernel_text_address(unsigned long addr) +{ +#ifdef CONFIG_MODULES + int retval = 0; + struct module *mod; +#endif + extern char _stext, _etext; + + if (addr >= (unsigned long) &_stext && + addr <= (unsigned long) &_etext) + return 1; + +#ifdef CONFIG_MODULES + for (mod = module_list; mod != &kernel_module; mod = mod->next) { + /* mod_bound tests for addr being inside the vmalloc'ed + * module area. Of course it'd be better to test only + * for the .text subset... */ + if (mod_bound(addr, 0, mod)) { + retval = 1; + break; + } + } + return retval; +#endif +} + + +void show_trace(unsigned long * stack) +{ + unsigned long *startstack; + unsigned long addr; + int i; + + startstack = (unsigned long *)((unsigned long)stack & ~(THREAD_SIZE - 1)); + i = 1; + printk("Kernel addresses on the stack:\n"); + while (stack >= startstack) { + addr = *stack--; + if (kernel_text_address(addr)) { + printk(" [<" RFMT ">] ", addr); + if ((i & 0x03) == 0) + printk("\n"); + i++; + } + } + printk("\n"); +} + +void show_trace_task(struct task_struct *tsk) +{ + show_trace((unsigned long *)tsk->thread.regs.ksp); +} + +void show_stack(unsigned long * sp) +{ + unsigned long *stack; + int i; + + /* + * debugging aid: "show_stack(NULL);" prints the + * back trace for this cpu. + */ + if (sp==NULL) + sp = (unsigned long*)&sp; + + stack = sp; + printk("\n" KERN_CRIT "Stack Dump:\n"); + printk(KERN_CRIT " " RFMT ": ", (unsigned long) stack); + for (i=0; i < kstack_depth_to_print; i++) { + if (((long) stack & (THREAD_SIZE-1)) == 0) + break; + if (i && ((i & 0x03) == 0)) + printk("\n" KERN_CRIT " " RFMT ": ", + (unsigned long) stack); + printk(RFMT " ", *stack--); + } + printk("\n" KERN_CRIT "\n"); + show_trace(sp); +} + +/* + * The architecture-independent backtrace generator + */ +void dump_stack(void) +{ + show_stack(0); +} + + void show_regs(struct pt_regs *regs) { int i; @@ -121,84 +208,6 @@ } -static void dump_stack(unsigned long from, unsigned long to, int istackflag) -{ - unsigned int *fromptr; - unsigned int *toptr; - - fromptr = (unsigned int *)from; - toptr = (unsigned int *)to; - - printk("\n"); - printk(KERN_CRIT "Dumping %sStack from 0x%p to 0x%p:\n", - istackflag ? "Interrupt " : "", - fromptr, toptr); - - while (fromptr < toptr) { - printk(KERN_CRIT "%04lx %08x %08x %08x %08x %08x %08x %08x %08x\n", - ((unsigned long)fromptr) & 0xffff, - fromptr[0], fromptr[1], fromptr[2], fromptr[3], - fromptr[4], fromptr[5], fromptr[6], fromptr[7]); - fromptr += 8; - } -} - - -void show_stack(struct pt_regs *regs) -{ -#if 1 - /* If regs->sr[7] == 0, we are on a kernel stack */ - if (regs->sr[7] == 0) { - - unsigned long sp = regs->gr[30]; - unsigned long cr30; - unsigned long cr31; - unsigned long stack_start; - struct pt_regs *int_regs; - - cr30 = mfctl(30); - cr31 = mfctl(31); - stack_start = sp & ~(ISTACK_SIZE - 1); - if (stack_start == cr31) { - /* - * We are on the interrupt stack, get the stack - * pointer from the first pt_regs structure on - * the interrupt stack, so we can dump the task - * stack first. - */ - - int_regs = (struct pt_regs *)cr31; - sp = int_regs->gr[30]; - stack_start = sp & ~(INIT_TASK_SIZE - 1); - if (stack_start != cr30) { - printk(KERN_CRIT "WARNING! Interrupt-Stack pointer and cr30 do not correspond!\n"); - printk(KERN_CRIT "Dumping virtual address stack instead\n"); - dump_stack((unsigned long)__va(stack_start), (unsigned long)__va(sp), 0); - } else { - dump_stack(stack_start, sp, 0); - }; - - printk("\n\n" KERN_DEBUG "Registers at Interrupt:\n"); - show_regs(int_regs); - - /* Now dump the interrupt stack */ - - sp = regs->gr[30]; - stack_start = sp & ~(ISTACK_SIZE - 1); - dump_stack(stack_start,sp,1); - } - else - { - /* Stack Dump! */ - printk(KERN_CRIT "WARNING! Stack pointer and cr30 do not correspond!\n"); - printk(KERN_CRIT "Dumping virtual address stack instead\n"); - dump_stack((unsigned long)__va(stack_start), (unsigned long)__va(sp), 0); - } - } -#endif -} - - void die_if_kernel(char *str, struct pt_regs *regs, long err) { if (user_mode(regs)) { @@ -260,9 +269,6 @@ void handle_break(unsigned iir, struct pt_regs *regs) { struct siginfo si; -#ifdef CONFIG_KWDB - struct save_state ssp; -#endif /* CONFIG_KWDB */ switch(iir) { case 0x00: @@ -285,26 +291,6 @@ handle_gdb_break(regs, TRAP_BRKPT); break; -#ifdef CONFIG_KWDB - case KGDB_BREAK_INSN: - mtctl(0, 15); - pt_regs_to_ssp(regs, &ssp); - kgdb_trap(I_BRK_INST, &ssp, 1); - ssp_to_pt_regs(&ssp, regs); - break; - - case KGDB_INIT_BREAK_INSN: - mtctl(0, 15); - pt_regs_to_ssp(regs, &ssp); - kgdb_trap(I_BRK_INST, &ssp, 1); - ssp_to_pt_regs(&ssp, regs); - - /* Advance pcoq to skip break */ - regs->iaoq[0] = regs->iaoq[1]; - regs->iaoq[1] += 4; - break; -#endif /* CONFIG_KWDB */ - default: #ifdef PRINT_USER_FAULTS printk(KERN_DEBUG "break %#08x: pid=%d command='%s'\n", @@ -335,20 +321,6 @@ void (*cpu_lpmc) (int code, struct pt_regs *regs) = default_trap; -#ifdef CONFIG_KWDB -int debug_call (void) -{ - printk (KERN_DEBUG "Debug call.\n"); - return 0; -} - -int debug_call_leaf (void) -{ - return 0; -} -#endif /* CONFIG_KWDB */ - - void transfer_pim_to_trap_frame(struct pt_regs *regs) { register int i; @@ -425,7 +397,7 @@ /* - * This routine handles page faults. It determines the address, + * This routine handles various exception codes. It determines the address, * and the problem, and then passes it off to one of the appropriate * routines. */ @@ -444,10 +416,20 @@ if (!console_drivers) pdc_console_restart(); - if (code == 1) - transfer_pim_to_trap_frame(regs); - show_stack(regs); + /* Not all switch paths will gutter the processor... */ + switch(code){ + + case 1: + transfer_pim_to_trap_frame(regs); + break; + + default: + /* Fall through */ + break; + } + + show_stack((unsigned long *)regs->gr[30]); printk("\n"); printk(KERN_CRIT "%s: Code=%d regs=%p (Addr=" RFMT ")\n", @@ -461,32 +443,34 @@ * system will shut down immediately right here. */ pdc_soft_power_button(0); + /* Gutter the processor... */ for(;;) ; } + void handle_interruption(int code, struct pt_regs *regs) { unsigned long fault_address = 0; unsigned long fault_space = 0; struct siginfo si; -#ifdef CONFIG_KWDB - struct save_state ssp; -#endif /* CONFIG_KWDB */ - - if (code == 1) - pdc_console_restart(); /* switch back to pdc if HPMC */ - else - sti(); -#if 0 - printk(KERN_CRIT "Interruption # %d\n", code); -#endif + /* HACK! jsm is going to fix this. + * entry.S will manage I-bit - only enable I-bit if it was + * enabled before we took the "trap". + */ + if (code != 1) + local_irq_enable(); switch(code) { case 1: /* High-priority machine check (HPMC) */ + pdc_console_restart(); /* switch back to pdc if HPMC */ + + /* set up a new led state on systems shipped with a LED State panel */ + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_HPMC); + parisc_terminate("High Priority Machine Check (HPMC)", regs, code, 0); /* NOT REACHED */ @@ -506,6 +490,9 @@ case 5: /* Low-priority machine check */ + + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_LPMC); + flush_all_caches(); cpu_lpmc(5, regs); return; @@ -554,6 +541,7 @@ die_if_kernel("Privileged register usage", regs, code); si.si_code = ILL_PRVREG; + /* Fall thru */ give_sigill: si.si_signo = SIGILL; si.si_errno = 0; @@ -561,17 +549,47 @@ force_sig_info(SIGILL, &si, current); return; + case 12: + /* Overflow Trap, let the userland signal handler do the cleanup */ + si.si_signo = SIGFPE; + si.si_code = FPE_INTOVF; + si.si_addr = (void *) regs->iaoq[0]; + force_sig_info(SIGFPE, &si, current); + return; + + case 13: + /* Conditional Trap + The condition succees in an instruction which traps on condition */ + si.si_signo = SIGFPE; + /* Set to zero, and let the userspace app figure it out from + the insn pointed to by si_addr */ + si.si_code = 0; + si.si_addr = (void *) regs->iaoq[0]; + force_sig_info(SIGFPE, &si, current); + return; + case 14: /* Assist Exception Trap, i.e. floating point exception. */ die_if_kernel("Floating point exception", regs, 0); /* quiet */ handle_fpe(regs); return; + case 15: + /* Data TLB miss fault/Data page fault */ + /* Fall thru */ + case 16: + /* Non-access instruction TLB miss fault */ + /* The instruction TLB entry needed for the target address of the FIC + is absent, and hardware can't find it, so we get to cleanup */ + /* Fall thru */ case 17: /* Non-access data TLB miss fault/Non-access data page fault */ /* TODO: Still need to add slow path emulation code here */ + /* TODO: Understand what is meant by the TODO listed + above this one. (Carlos) */ fault_address = regs->ior; - parisc_terminate("Non access data tlb fault!",regs,code,fault_address); + fault_space = regs->isr; + break; case 18: /* PCXS only -- later cpu's split this into types 26,27 & 28 */ @@ -581,9 +599,8 @@ return; } /* Fall Through */ - - case 15: /* Data TLB miss fault/Data page fault */ - case 26: /* PCXL: Data memory access rights trap */ + case 26: + /* PCXL: Data memory access rights trap */ fault_address = regs->ior; fault_space = regs->isr; break; @@ -599,7 +616,6 @@ case 25: /* Taken branch trap */ -#ifndef CONFIG_KWDB regs->gr[0] &= ~PSW_T; if (regs->iasq[0]) handle_gdb_break(regs, TRAP_BRANCH); @@ -607,14 +623,6 @@ * run. */ return; -#else - /* Kernel debugger: */ - mtctl(0, 15); - pt_regs_to_ssp(regs, &ssp); - kgdb_trap(I_TAKEN_BR, &ssp, 1); - ssp_to_pt_regs(&ssp, regs); - break; -#endif /* CONFIG_KWDB */ case 7: /* Instruction access rights */ @@ -648,7 +656,6 @@ up_read(¤t->mm->mmap_sem); } /* Fall Through */ - case 27: /* Data memory protection ID trap */ die_if_kernel("Protection id trap", regs, code); @@ -682,6 +689,9 @@ force_sig_info(SIGBUS, &si, current); return; } + + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC); + parisc_terminate("Unexpected interruption", regs, code, 0); /* NOT REACHED */ } @@ -710,24 +720,17 @@ * The kernel should never fault on its own address space. */ - if (fault_space == 0) - parisc_terminate("Kernel Fault", regs, code, fault_address); + if (fault_space == 0) { + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC); + parisc_terminate("Kernel Fault", regs, code, fault_address); + /** NOT REACHED **/ + } } -#ifdef CONFIG_KWDB - debug_call_leaf (); -#endif /* CONFIG_KWDB */ - do_page_fault(regs, code, fault_address); } -void show_trace_task(struct task_struct *tsk) -{ - BUG(); -} - - int __init check_ivt(void *iva) { diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/kernel/unaligned.c linux.21pre3-ac4/arch/parisc/kernel/unaligned.c --- linux.21pre3/arch/parisc/kernel/unaligned.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/kernel/unaligned.c 2003-01-06 15:38:40.000000000 +0000 @@ -1,4 +1,4 @@ -/* $Id: unaligned.c,v 1.9 2001/10/04 03:31:08 tausq Exp $ +/* $Id: unaligned.c,v 1.10 2002/09/22 02:21:05 tausq Exp $ * * Unaligned memory access handler * @@ -108,7 +108,7 @@ #define OPCODE_STW_L OPCODE4(0x1A) #define OPCODE_STW_L2 OPCODE4(0x1B) - +int unaligned_enabled = 1; void die_if_kernel (char *str, struct pt_regs *regs, long err); @@ -281,6 +281,9 @@ } } + if (!unaligned_enabled) + goto force_sigbus; + /* TODO: make this cleaner... */ switch (regs->iir & OPCODE1_MASK) { @@ -368,7 +371,7 @@ { printk(KERN_CRIT "Unaligned handler failed, ret = %d\n", ret); die_if_kernel("Unaligned data reference", regs, 28); - +force_sigbus: /* couldn't handle it ... */ si.si_signo = SIGBUS; si.si_errno = 0; @@ -432,3 +435,4 @@ return (int)(regs->ior & align_mask); } + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/lib/locks.c linux.21pre3-ac4/arch/parisc/lib/locks.c --- linux.21pre3/arch/parisc/lib/locks.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/parisc/lib/locks.c 2003-01-06 15:38:40.000000000 +0000 @@ -0,0 +1,68 @@ +/* + * debugging spinlocks for parisc + * + * Adapted from the ppc version + */ + + +#include +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_DEBUG_SPINLOCK + +#undef INIT_STUCK +#define INIT_STUCK 200000000 /*0xffffffff*/ + +#define __spin_trylock(x) (__ldcw(&(x)->lock) != 0) + +void spin_lock(spinlock_t *lock) +{ + int cpu = smp_processor_id(); + unsigned int stuck = INIT_STUCK; + while (!__spin_trylock(lock)) { + while ((unsigned volatile long)lock->lock == 0) { + if (!--stuck) { + printk("spin_lock(%p) CPU#%d NIP %p" + " holder: cpu %ld pc %08lX\n", + lock, cpu, __builtin_return_address(0), + lock->owner_cpu,lock->owner_pc); + stuck = INIT_STUCK; + /* steal the lock */ + /*xchg_u32((void *)&lock->lock,0);*/ + } + } + } + lock->owner_pc = (unsigned long)__builtin_return_address(0); + lock->owner_cpu = cpu; +} + +int spin_trylock(spinlock_t *lock) +{ + if (!__spin_trylock(lock)) + return 0; + lock->owner_cpu = smp_processor_id(); + lock->owner_pc = (unsigned long)__builtin_return_address(0); + return 1; +} + +void spin_unlock(spinlock_t *lp) +{ + if ( lp->lock ) + printk("spin_unlock(%p): no lock cpu %d curr PC %p %s/%d\n", + lp, smp_processor_id(), __builtin_return_address(0), + current->comm, current->pid); + if ( lp->owner_cpu != smp_processor_id() ) + printk("spin_unlock(%p): cpu %d trying clear of cpu %d pc %lx val %x\n", + lp, smp_processor_id(), (int)lp->owner_cpu, + lp->owner_pc,lp->lock); + lp->owner_pc = lp->owner_cpu = 0; + wmb(); + lp->lock = 1; +} + +#endif diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/lib/Makefile linux.21pre3-ac4/arch/parisc/lib/Makefile --- linux.21pre3/arch/parisc/lib/Makefile 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/lib/Makefile 2003-01-06 15:38:40.000000000 +0000 @@ -6,4 +6,6 @@ L_TARGET = lib.a obj-y := lusercopy.o bitops.o checksum.o io.o memset.o +obj-$(CONFIG_SMP) += locks.o + include $(TOPDIR)/Rules.make diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/Makefile linux.21pre3-ac4/arch/parisc/Makefile --- linux.21pre3/arch/parisc/Makefile 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/Makefile 2003-01-06 15:38:40.000000000 +0000 @@ -91,14 +91,6 @@ SUBDIRS := $(SUBDIRS) arch/parisc/math-emu DRIVERS := $(DRIVERS) arch/parisc/math-emu/math.o -ifdef CONFIG_KWDB -SUBDIRS := $(SUBDIRS) arch/parisc/kdb -DRIVERS := $(DRIVERS) arch/parisc/kdb/kdb.o - -arch/parisc/kdb: dummy - $(MAKE) linuxsubdirs SUBDIRS=arch/parisc/kdb -endif - arch/parisc/kernel: dummy $(MAKE) linuxsubdirs SUBDIRS=arch/parisc/kernel @@ -106,6 +98,21 @@ $(MAKE) linuxsubdirs SUBDIRS=arch/parisc/mm palo: vmlinux + @if [ $$(palo -f /dev/null >/dev/null 2>&1 ; echo $$?) != 2 ]; then \ + echo 'ERROR: Please install palo first (apt-get install palo)';\ + echo 'or build it from source and install it somewhere in your $$PATH';\ + false; \ + fi + @if [ ! -f ./palo.conf ]; then \ + cp arch/parisc/defpalo.conf palo.conf; \ + echo 'A generic palo config file (./palo.conf) has been created for you.'; \ + echo 'You should check it and re-run "make palo".'; \ + echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \ + false; \ + fi + palo -f ./palo.conf + +oldpalo: vmlinux export TOPDIR=`pwd`; \ unset STRIP LDFLAGS CPP CPPFLAGS AFLAGS CFLAGS CC LD; cd ../palo && make lifimage diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/mm/fault.c linux.21pre3-ac4/arch/parisc/mm/fault.c --- linux.21pre3/arch/parisc/mm/fault.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/mm/fault.c 2003-01-06 15:38:40.000000000 +0000 @@ -257,7 +257,8 @@ } parisc_terminate("Bad Address (null pointer deref?)", regs, code, address); - + /* NOT REACHED! */ + out_of_memory: up_read(&mm->mmap_sem); printk(KERN_CRIT "VM: killing process %s\n", current->comm); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/mm/init.c linux.21pre3-ac4/arch/parisc/mm/init.c --- linux.21pre3/arch/parisc/mm/init.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/mm/init.c 2003-01-06 15:38:40.000000000 +0000 @@ -21,6 +21,7 @@ #include #include +#include mmu_gather_t mmu_gathers[NR_CPUS]; @@ -409,6 +410,9 @@ } printk("%luk freed\n", (unsigned long)(&__init_end - &__init_begin) >> 10); + + /* set up a new led state on systems shipped LED State panel */ + pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE); } /* @@ -574,13 +578,8 @@ for (tmp2 = start_pte; tmp2 < PTRS_PER_PTE; tmp2++,pg_table++) { pte_t pte; -#if !defined(CONFIG_KWDB) && !defined(CONFIG_STI_CONSOLE) +#if !defined(CONFIG_STI_CONSOLE) #warning STI console should explicitly allocate executable pages but does not -/* KWDB needs to write kernel text when setting break points. -** -** The right thing to do seems like KWDB modify only the pte which -** has a break point on it...otherwise we might mask worse bugs. -*/ /* * Map the fault vector writable so we can * write the HPMC checksum. diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/vmlinux64.lds linux.21pre3-ac4/arch/parisc/vmlinux64.lds --- linux.21pre3/arch/parisc/vmlinux64.lds 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/vmlinux64.lds 2003-01-06 15:38:40.000000000 +0000 @@ -15,12 +15,12 @@ *(.gnu.warning) } = 0 + _etext = .; /* End of text section */ + . = ALIGN(16); .rodata : { *(.rodata) } .kstrtab : { *(.kstrtab) } - _etext = .; /* End of text section */ - .data BLOCK(8192) : { /* Data without special */ data_start = .; *(.data) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/parisc/vmlinux.lds linux.21pre3-ac4/arch/parisc/vmlinux.lds --- linux.21pre3/arch/parisc/vmlinux.lds 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/parisc/vmlinux.lds 2003-01-06 15:38:40.000000000 +0000 @@ -14,12 +14,12 @@ *(.gnu.warning) } = 0 + _etext = .; /* End of text section */ + . = ALIGN(16); .rodata : { *(.rodata) *(.rodata.*) } .kstrtab : { *(.kstrtab) } - _etext = .; /* End of text section */ - .data BLOCK(8192) : { /* Data without special */ data_start = .; *(.data) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ppc/kernel/entry.S linux.21pre3-ac4/arch/ppc/kernel/entry.S --- linux.21pre3/arch/ppc/kernel/entry.S 2003-01-07 14:02:00.000000000 +0000 +++ linux.21pre3-ac4/arch/ppc/kernel/entry.S 2003-01-06 19:13:14.000000000 +0000 @@ -264,7 +264,9 @@ .globl ret_from_fork ret_from_fork: +#ifdef CONFIG_SMP bl schedule_tail +#endif lwz r0,TASK_PTRACE(r2) andi. r0,r0,PT_TRACESYS bnel- syscall_trace diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ppc/kernel/idle.c linux.21pre3-ac4/arch/ppc/kernel/idle.c --- linux.21pre3/arch/ppc/kernel/idle.c 2003-01-07 14:02:00.000000000 +0000 +++ linux.21pre3-ac4/arch/ppc/kernel/idle.c 2003-01-06 19:13:14.000000000 +0000 @@ -51,9 +51,6 @@ do_power_save = 1; /* endless loop with no priority at all */ - current->nice = 20; - current->counter = -100; - init_idle(); for (;;) { #ifdef CONFIG_SMP if (!do_power_save) { @@ -73,11 +70,8 @@ if (do_power_save && !current->need_resched) power_save_6xx(); #endif /* CONFIG_6xx */ - - if (current->need_resched) { - schedule(); - check_pgt_cache(); - } + schedule(); + check_pgt_cache(); } return 0; } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ppc/kernel/mk_defs.c linux.21pre3-ac4/arch/ppc/kernel/mk_defs.c --- linux.21pre3/arch/ppc/kernel/mk_defs.c 2003-01-07 14:02:00.000000000 +0000 +++ linux.21pre3-ac4/arch/ppc/kernel/mk_defs.c 2003-01-06 19:13:14.000000000 +0000 @@ -37,8 +37,7 @@ /*DEFINE(KERNELBASE, KERNELBASE);*/ DEFINE(STATE, offsetof(struct task_struct, state)); DEFINE(NEXT_TASK, offsetof(struct task_struct, next_task)); - DEFINE(COUNTER, offsetof(struct task_struct, counter)); - DEFINE(PROCESSOR, offsetof(struct task_struct, processor)); + DEFINE(PROCESSOR, offsetof(struct task_struct, cpu)); DEFINE(SIGPENDING, offsetof(struct task_struct, sigpending)); DEFINE(THREAD, offsetof(struct task_struct, thread)); DEFINE(MM, offsetof(struct task_struct, mm)); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ppc/kernel/ppc_defs.h linux.21pre3-ac4/arch/ppc/kernel/ppc_defs.h --- linux.21pre3/arch/ppc/kernel/ppc_defs.h 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/arch/ppc/kernel/ppc_defs.h 2003-01-06 19:13:14.000000000 +0000 @@ -0,0 +1,81 @@ +/* + * WARNING! This file is automatically generated - DO NOT EDIT! + */ +#define STATE 0 +#define NEXT_TASK 76 +#define PROCESSOR 32 +#define SIGPENDING 8 +#define THREAD 608 +#define MM 84 +#define ACTIVE_MM 88 +#define TASK_STRUCT_SIZE 1520 +#define KSP 0 +#define PGDIR 16 +#define LAST_SYSCALL 20 +#define PT_REGS 8 +#define PT_TRACESYS 2 +#define TASK_FLAGS 4 +#define TASK_PTRACE 24 +#define NEED_RESCHED 20 +#define THREAD_FPR0 24 +#define THREAD_FPSCR 284 +#define THREAD_VR0 288 +#define THREAD_VRSAVE 816 +#define THREAD_VSCR 800 +#define TASK_UNION_SIZE 8192 +#define STACK_FRAME_OVERHEAD 16 +#define INT_FRAME_SIZE 192 +#define GPR0 16 +#define GPR1 20 +#define GPR2 24 +#define GPR3 28 +#define GPR4 32 +#define GPR5 36 +#define GPR6 40 +#define GPR7 44 +#define GPR8 48 +#define GPR9 52 +#define GPR10 56 +#define GPR11 60 +#define GPR12 64 +#define GPR13 68 +#define GPR14 72 +#define GPR15 76 +#define GPR16 80 +#define GPR17 84 +#define GPR18 88 +#define GPR19 92 +#define GPR20 96 +#define GPR21 100 +#define GPR22 104 +#define GPR23 108 +#define GPR24 112 +#define GPR25 116 +#define GPR26 120 +#define GPR27 124 +#define GPR28 128 +#define GPR29 132 +#define GPR30 136 +#define GPR31 140 +#define _NIP 144 +#define _MSR 148 +#define _CTR 156 +#define _LINK 160 +#define _CCR 168 +#define _MQ 172 +#define _XER 164 +#define _DAR 180 +#define _DSISR 184 +#define _DEAR 180 +#define _ESR 184 +#define ORIG_GPR3 152 +#define RESULT 188 +#define TRAP 176 +#define CLONE_VM 256 +#define MM_PGD 12 +#define CPU_SPEC_ENTRY_SIZE 32 +#define CPU_SPEC_PVR_MASK 0 +#define CPU_SPEC_PVR_VALUE 4 +#define CPU_SPEC_FEATURES 12 +#define CPU_SPEC_SETUP 28 +#define NUM_USER_SEGMENTS 8 diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ppc/kernel/smp.c linux.21pre3-ac4/arch/ppc/kernel/smp.c --- linux.21pre3/arch/ppc/kernel/smp.c 2003-01-07 14:02:00.000000000 +0000 +++ linux.21pre3-ac4/arch/ppc/kernel/smp.c 2003-01-06 19:13:14.000000000 +0000 @@ -294,8 +294,6 @@ cpu_callin_map[0] = 1; current->processor = 0; - init_idle(); - for (i = 0; i < NR_CPUS; i++) { prof_counter[i] = 1; prof_multiplier[i] = 1; @@ -348,7 +346,8 @@ p = init_task.prev_task; if (!p) panic("No idle task for CPU %d", i); - del_from_runqueue(p); + init_idle(p, i); + unhash_process(p); init_tasks[i] = p; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/ppc/mm/fault.c linux.21pre3-ac4/arch/ppc/mm/fault.c --- linux.21pre3/arch/ppc/mm/fault.c 2003-01-07 14:02:00.000000000 +0000 +++ linux.21pre3-ac4/arch/ppc/mm/fault.c 2003-01-06 19:13:14.000000000 +0000 @@ -109,8 +109,6 @@ goto bad_area; if (vma->vm_start <= address) goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (expand_stack(vma, address)) goto bad_area; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/s390/kernel/entry.S linux.21pre3-ac4/arch/s390/kernel/entry.S --- linux.21pre3/arch/s390/kernel/entry.S 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/s390/kernel/entry.S 2003-01-06 19:13:14.000000000 +0000 @@ -254,13 +254,14 @@ ret_from_fork: basr %r13,0 l %r13,.Lentry_base-.(%r13) # setup base pointer to &entry_base + # not saving R14 here because we go to sysc_return ultimately + l %r1,BASED(.Lschedtail) + basr %r14,%r1 # call schedule_tail (unlock stuff) GET_CURRENT # load pointer to task_struct to R9 stosm 24(%r15),0x03 # reenable interrupts sr %r0,%r0 # child returns 0 st %r0,SP_R2(%r15) # store return value (change R2 on stack) - l %r1,BASED(.Lschedtail) - la %r14,BASED(sysc_return) - br %r1 # call schedule_tail, return to sysc_return + b BASED(sysc_return) # # clone, fork, vfork, exec and sigreturn need glue, diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/s390x/kernel/entry.S linux.21pre3-ac4/arch/s390x/kernel/entry.S --- linux.21pre3/arch/s390x/kernel/entry.S 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/s390x/kernel/entry.S 2003-01-06 19:13:14.000000000 +0000 @@ -240,11 +240,11 @@ # .globl ret_from_fork ret_from_fork: + brasl %r14,schedule_tail GET_CURRENT # load pointer to task_struct to R9 stosm 48(%r15),0x03 # reenable interrupts xc SP_R2(8,%r15),SP_R2(%r15) # child returns 0 - larl %r14,sysc_return - jg schedule_tail # return to sysc_return + j sysc_return # # clone, fork, vfork, exec and sigreturn need glue, diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/s390x/kernel/linux32.c linux.21pre3-ac4/arch/s390x/kernel/linux32.c --- linux.21pre3/arch/s390x/kernel/linux32.c 2003-01-07 14:02:05.000000000 +0000 +++ linux.21pre3-ac4/arch/s390x/kernel/linux32.c 2003-01-06 23:19:40.000000000 +0000 @@ -912,64 +912,97 @@ return sys32_fcntl(fd, cmd, arg); } -struct dqblk32 { - __u32 dqb_bhardlimit; - __u32 dqb_bsoftlimit; - __u32 dqb_curblocks; - __u32 dqb_ihardlimit; - __u32 dqb_isoftlimit; - __u32 dqb_curinodes; - __kernel_time_t32 dqb_btime; - __kernel_time_t32 dqb_itime; -}; - extern asmlinkage int sys_quotactl(int cmd, const char *special, int id, caddr_t addr); -asmlinkage int sys32_quotactl(int cmd, const char *special, int id, unsigned long addr) +#ifdef CONFIG_QIFACE_COMPAT +#ifdef CONFIG_QIFACE_V1 +struct user_dqblk32 { + __u32 dqb_bhardlimit; + __u32 dqb_bsoftlimit; + __u32 dqb_curblocks; + __u32 dqb_ihardlimit; + __u32 dqb_isoftlimit; + __u32 dqb_curinodes; + __kernel_time_t32 dqb_btime; + __kernel_time_t32 dqb_itime; +}; +typedef struct v1c_mem_dqblk comp_dqblk_t; + +#define Q_COMP_GETQUOTA Q_V1_GETQUOTA +#define Q_COMP_SETQUOTA Q_V1_SETQUOTA +#define Q_COMP_SETQLIM Q_V1_SETQLIM +#define Q_COMP_SETUSE Q_V1_SETUSE +#else +struct user_dqblk32 { + __u32 dqb_ihardlimit; + __u32 dqb_isoftlimit; + __u32 dqb_curinodes; + __u32 dqb_bhardlimit; + __u32 dqb_bsoftlimit; + __u64 dqb_curspace; + __kernel_time_t32 dqb_btime; + __kernel_time_t32 dqb_itime; +}; +typedef struct v2c_mem_dqblk comp_dqblk_t; + +#define Q_COMP_GETQUOTA Q_V2_GETQUOTA +#define Q_COMP_SETQUOTA Q_V2_SETQUOTA +#define Q_COMP_SETQLIM Q_V2_SETQLIM +#define Q_COMP_SETUSE Q_V2_SETUSE +#endif + +asmlinkage int sys32_quotactl(int cmd, const char *special, int id, caddr_t addr) { int cmds = cmd >> SUBCMDSHIFT; int err; - struct dqblk d; + comp_dqblk_t d; mm_segment_t old_fs; char *spec; switch (cmds) { - case Q_GETQUOTA: - break; - case Q_SETQUOTA: - case Q_SETUSE: - case Q_SETQLIM: - if (copy_from_user (&d, (struct dqblk32 *)addr, - sizeof (struct dqblk32))) - return -EFAULT; - d.dqb_itime = ((struct dqblk32 *)&d)->dqb_itime; - d.dqb_btime = ((struct dqblk32 *)&d)->dqb_btime; - break; + case Q_COMP_GETQUOTA: + break; + case Q_COMP_SETQUOTA: + case Q_COMP_SETUSE: + case Q_COMP_SETQLIM: + if (copy_from_user(&d, (struct user_dqblk32 *)addr, + sizeof (struct user_dqblk32))) + return -EFAULT; + d.dqb_itime = ((struct user_dqblk32 *)&d)->dqb_itime; + d.dqb_btime = ((struct user_dqblk32 *)&d)->dqb_btime; + break; default: - return sys_quotactl(cmd, special, - id, (caddr_t)addr); + return sys_quotactl(cmd, special, id, (__kernel_caddr_t)addr); } spec = getname (special); err = PTR_ERR(spec); if (IS_ERR(spec)) return err; - old_fs = get_fs (); + old_fs = get_fs(); set_fs (KERNEL_DS); - err = sys_quotactl(cmd, (const char *)spec, id, (caddr_t)&d); + err = sys_quotactl(cmd, (const char *)spec, id, (__kernel_caddr_t)&d); set_fs (old_fs); putname (spec); if (err) return err; - if (cmds == Q_GETQUOTA) { + if (cmds == Q_COMP_GETQUOTA) { __kernel_time_t b = d.dqb_btime, i = d.dqb_itime; - ((struct dqblk32 *)&d)->dqb_itime = i; - ((struct dqblk32 *)&d)->dqb_btime = b; - if (copy_to_user ((struct dqblk32 *)addr, &d, - sizeof (struct dqblk32))) + ((struct user_dqblk32 *)&d)->dqb_itime = i; + ((struct user_dqblk32 *)&d)->dqb_btime = b; + if (copy_to_user ((struct user_dqblk32 *)addr, &d, + sizeof (struct user_dqblk32))) return -EFAULT; } return 0; } +#else +/* No conversion needed for new interface */ +asmlinkage int sys32_quotactl(int cmd, const char *special, int id, caddr_t addr) +{ + return sys_quotactl(cmd, special, id, addr); +} +#endif + static inline int put_statfs (struct statfs32 *ubuf, struct statfs *kbuf) { int err; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sh/mm/fault.c linux.21pre3-ac4/arch/sh/mm/fault.c --- linux.21pre3/arch/sh/mm/fault.c 2003-01-07 14:02:02.000000000 +0000 +++ linux.21pre3-ac4/arch/sh/mm/fault.c 2003-01-06 19:13:27.000000000 +0000 @@ -72,8 +72,6 @@ return 1; check_stack: - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (expand_stack(vma, start) == 0) goto good_area; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sparc/kernel/sunos_ioctl.c linux.21pre3-ac4/arch/sparc/kernel/sunos_ioctl.c --- linux.21pre3/arch/sparc/kernel/sunos_ioctl.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/sparc/kernel/sunos_ioctl.c 2003-01-06 18:20:22.000000000 +0000 @@ -39,8 +39,12 @@ { int ret = -EBADF; - if (fd >= SUNOS_NR_OPEN || !fcheck(fd)) + read_lock(¤t->files->file_lock); + if (fd >= SUNOS_NR_OPEN || !fcheck(fd)) { + read_unlock(¤t->files->file_lock); goto out; + } + read_unlock(¤t->files->file_lock); /* First handle an easy compat. case for tty ldisc. */ if(cmd == TIOCSETD) { diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sparc/mm/fault.c linux.21pre3-ac4/arch/sparc/mm/fault.c --- linux.21pre3/arch/sparc/mm/fault.c 2003-01-07 14:01:57.000000000 +0000 +++ linux.21pre3-ac4/arch/sparc/mm/fault.c 2003-01-06 19:13:27.000000000 +0000 @@ -249,8 +249,6 @@ goto bad_area; if(vma->vm_start <= address) goto good_area; - if(!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if(expand_stack(vma, address)) goto bad_area; /* @@ -496,8 +494,6 @@ goto bad_area; if(vma->vm_start <= address) goto good_area; - if(!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if(expand_stack(vma, address)) goto bad_area; good_area: diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sparc64/kernel/sunos_ioctl32.c linux.21pre3-ac4/arch/sparc64/kernel/sunos_ioctl32.c --- linux.21pre3/arch/sparc64/kernel/sunos_ioctl32.c 2003-01-07 14:02:01.000000000 +0000 +++ linux.21pre3-ac4/arch/sparc64/kernel/sunos_ioctl32.c 2003-01-06 18:20:34.000000000 +0000 @@ -100,8 +100,12 @@ if(fd >= SUNOS_NR_OPEN) goto out; - if(!fcheck(fd)) + read_lock(¤t->files->file_lock); + if(!fcheck(fd)) { + read_unlock(¤t->files->file_lock); goto out; + } + read_unlock(¤t->files->file_lock); if(cmd == TIOCSETD) { mm_segment_t old_fs = get_fs(); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sparc64/kernel/sys_sparc32.c linux.21pre3-ac4/arch/sparc64/kernel/sys_sparc32.c --- linux.21pre3/arch/sparc64/kernel/sys_sparc32.c 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/arch/sparc64/kernel/sys_sparc32.c 2003-01-06 23:19:40.000000000 +0000 @@ -888,62 +888,97 @@ return sys32_fcntl(fd, cmd, arg); } -struct dqblk32 { - __u32 dqb_bhardlimit; - __u32 dqb_bsoftlimit; - __u32 dqb_curblocks; - __u32 dqb_ihardlimit; - __u32 dqb_isoftlimit; - __u32 dqb_curinodes; - __kernel_time_t32 dqb_btime; - __kernel_time_t32 dqb_itime; -}; - extern asmlinkage int sys_quotactl(int cmd, const char *special, int id, caddr_t addr); -asmlinkage int sys32_quotactl(int cmd, const char *special, int id, unsigned long addr) +#ifdef CONFIG_QIFACE_COMPAT +#ifdef CONFIG_QIFACE_V1 +struct user_dqblk32 { + __u32 dqb_bhardlimit; + __u32 dqb_bsoftlimit; + __u32 dqb_curblocks; + __u32 dqb_ihardlimit; + __u32 dqb_isoftlimit; + __u32 dqb_curinodes; + __kernel_time_t32 dqb_btime; + __kernel_time_t32 dqb_itime; +}; +typedef struct v1c_mem_dqblk comp_dqblk_t; + +#define Q_COMP_GETQUOTA Q_V1_GETQUOTA +#define Q_COMP_SETQUOTA Q_V1_SETQUOTA +#define Q_COMP_SETQLIM Q_V1_SETQLIM +#define Q_COMP_SETUSE Q_V1_SETUSE +#else +struct user_dqblk32 { + __u32 dqb_ihardlimit; + __u32 dqb_isoftlimit; + __u32 dqb_curinodes; + __u32 dqb_bhardlimit; + __u32 dqb_bsoftlimit; + __u64 dqb_curspace; + __kernel_time_t32 dqb_btime; + __kernel_time_t32 dqb_itime; +}; +typedef struct v2c_mem_dqblk comp_dqblk_t; + +#define Q_COMP_GETQUOTA Q_V2_GETQUOTA +#define Q_COMP_SETQUOTA Q_V2_SETQUOTA +#define Q_COMP_SETQLIM Q_V2_SETQLIM +#define Q_COMP_SETUSE Q_V2_SETUSE +#endif + +asmlinkage int sys32_quotactl(int cmd, const char *special, int id, caddr_t addr) { int cmds = cmd >> SUBCMDSHIFT; int err; - struct dqblk d; + comp_dqblk_t d; mm_segment_t old_fs; char *spec; switch (cmds) { - case Q_GETQUOTA: - break; - case Q_SETQUOTA: - case Q_SETUSE: - case Q_SETQLIM: - if (copy_from_user (&d, (struct dqblk32 *)addr, - sizeof (struct dqblk32))) - return -EFAULT; - d.dqb_itime = ((struct dqblk32 *)&d)->dqb_itime; - d.dqb_btime = ((struct dqblk32 *)&d)->dqb_btime; - break; + case Q_COMP_GETQUOTA: + break; + case Q_COMP_SETQUOTA: + case Q_COMP_SETUSE: + case Q_COMP_SETQLIM: + if (copy_from_user(&d, (struct user_dqblk32 *)addr, + sizeof (struct user_dqblk32))) + return -EFAULT; + d.dqb_itime = ((struct user_dqblk32 *)&d)->dqb_itime; + d.dqb_btime = ((struct user_dqblk32 *)&d)->dqb_btime; + break; default: - return sys_quotactl(cmd, special, - id, (caddr_t)addr); + return sys_quotactl(cmd, special, id, (__kernel_caddr_t)addr); } spec = getname (special); err = PTR_ERR(spec); if (IS_ERR(spec)) return err; - old_fs = get_fs (); + old_fs = get_fs(); set_fs (KERNEL_DS); - err = sys_quotactl(cmd, (const char *)spec, id, (caddr_t)&d); + err = sys_quotactl(cmd, (const char *)spec, id, (__kernel_caddr_t)&d); set_fs (old_fs); putname (spec); - if (cmds == Q_GETQUOTA) { + if (err) + return err; + if (cmds == Q_COMP_GETQUOTA) { __kernel_time_t b = d.dqb_btime, i = d.dqb_itime; - ((struct dqblk32 *)&d)->dqb_itime = i; - ((struct dqblk32 *)&d)->dqb_btime = b; - if (copy_to_user ((struct dqblk32 *)addr, &d, - sizeof (struct dqblk32))) + ((struct user_dqblk32 *)&d)->dqb_itime = i; + ((struct user_dqblk32 *)&d)->dqb_btime = b; + if (copy_to_user ((struct user_dqblk32 *)addr, &d, + sizeof (struct user_dqblk32))) return -EFAULT; } - return err; + return 0; } +#else +/* No conversion needed for new interface */ +asmlinkage int sys32_quotactl(int cmd, const char *special, int id, caddr_t addr) +{ + return sys_quotactl(cmd, special, id, addr); +} +#endif + static inline int put_statfs (struct statfs32 *ubuf, struct statfs *kbuf) { int err; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sparc64/mm/fault.c linux.21pre3-ac4/arch/sparc64/mm/fault.c --- linux.21pre3/arch/sparc64/mm/fault.c 2003-01-07 14:02:02.000000000 +0000 +++ linux.21pre3-ac4/arch/sparc64/mm/fault.c 2003-01-06 19:13:39.000000000 +0000 @@ -373,8 +373,6 @@ if (vma->vm_start <= address) goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; if (!(fault_code & FAULT_CODE_WRITE)) { /* Non-faulting loads shouldn't expand stack. */ insn = get_fault_insn(regs, insn); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/arch/sparc64/solaris/timod.c linux.21pre3-ac4/arch/sparc64/solaris/timod.c --- linux.21pre3/arch/sparc64/solaris/timod.c 2003-01-07 14:02:02.000000000 +0000 +++ linux.21pre3-ac4/arch/sparc64/solaris/timod.c 2003-01-06 18:20:56.000000000 +0000 @@ -149,7 +149,9 @@ struct socket *sock; SOLD("wakeing socket"); + read_lock(¤t->files->file_lock); sock = ¤t->files->fd[fd]->f_dentry->d_inode->u.socket_i; + read_unlock(¤t->files->file_lock); wake_up_interruptible(&sock->wait); read_lock(&sock->sk->callback_lock); if (sock->fasync_list && !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags)) @@ -163,7 +165,9 @@ struct sol_socket_struct *sock; SOLD("queuing primsg"); + read_lock(¤t->files->file_lock); sock = (struct sol_socket_struct *)current->files->fd[fd]->private_data; + read_unlock(¤t->files->file_lock); it->next = sock->pfirst; sock->pfirst = it; if (!sock->plast) @@ -177,7 +181,9 @@ struct sol_socket_struct *sock; SOLD("queuing primsg at end"); + read_lock(¤t->files->file_lock); sock = (struct sol_socket_struct *)current->files->fd[fd]->private_data; + read_unlock(¤t->files->file_lock); it->next = NULL; if (sock->plast) sock->plast->next = it; @@ -355,7 +361,11 @@ (int (*)(int, unsigned long *))SYS(socketcall); int (*sys_sendto)(int, void *, size_t, unsigned, struct sockaddr *, int) = (int (*)(int, void *, size_t, unsigned, struct sockaddr *, int))SYS(sendto); - filp = current->files->fd[fd]; + read_lock(¤t->files->file_lock); + filp = fcheck(fd); + read_unlock(¤t->files->file_lock); + if (!filp) + return -EBADF; ino = filp->f_dentry->d_inode; sock = (struct sol_socket_struct *)filp->private_data; SOLD("entry"); @@ -636,7 +646,11 @@ SOLD("entry"); SOLDD(("%u %p %d %p %p %d %p %d\n", fd, ctl_buf, ctl_maxlen, ctl_len, data_buf, data_maxlen, data_len, *flags_p)); - filp = current->files->fd[fd]; + read_lock(¤t->files->file_lock); + filp = fcheck(fd); + read_unlock(¤t->files->file_lock); + if (!filp) + return -EBADF; ino = filp->f_dentry->d_inode; sock = (struct sol_socket_struct *)filp->private_data; SOLDD(("%p %p\n", sock->pfirst, sock->pfirst ? sock->pfirst->next : NULL)); @@ -847,7 +861,9 @@ lock_kernel(); if(fd >= NR_OPEN) goto out; - filp = current->files->fd[fd]; + read_lock(¤t->files->file_lock); + filp = fcheck(fd); + read_unlock(¤t->files->file_lock); if(!filp) goto out; ino = filp->f_dentry->d_inode; @@ -914,7 +930,9 @@ lock_kernel(); if(fd >= NR_OPEN) goto out; - filp = current->files->fd[fd]; + read_lock(¤t->files->file_lock); + filp = fcheck(fd); + read_unlock(¤t->files->file_lock); if(!filp) goto out; ino = filp->f_dentry->d_inode; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/CREDITS linux.21pre3-ac4/CREDITS --- linux.21pre3/CREDITS 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/CREDITS 2003-01-09 19:42:15.000000000 +0000 @@ -2405,13 +2405,10 @@ D: CDROM driver "sonycd535" (Sony CDU-535/531) N: Stelian Pop -E: stelian.pop@fr.alcove.com +E: stelian@popies.net P: 1024D/EDBB6147 7B36 0E07 04BC 11DC A7A0 D3F7 7185 9E7A EDBB 6147 D: sonypi, meye drivers, mct_u232 usb serial hacks -S: Alcôve -S: 153, bd. Anatole France -S: 93200 Saint Denis -S: France +S: Paris, France N: Frederic Potter E: fpotter@cirpack.com @@ -2549,6 +2546,12 @@ S: 7000 Stuttgart 50 S: Germany +N: Andrew Rodland +E: arodland@linuxguru.net +D: That crazy morse code thing. +P: D2B1 5215 B1B9 18E0 B6AD 6ADD 4373 165F 1770 BD5C +S: Pennsylvania, USA + N: Christoph Rohland E: hans-christoph.rohland@sap.com E: ch.rohland@gmx.net diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/00-INDEX linux.21pre3-ac4/Documentation/00-INDEX --- linux.21pre3/Documentation/00-INDEX 2003-01-07 14:02:06.000000000 +0000 +++ linux.21pre3-ac4/Documentation/00-INDEX 2003-01-06 16:20:24.000000000 +0000 @@ -52,6 +52,8 @@ - directory with information on the CD-ROM drivers that Linux has. computone.txt - info on Computone Intelliport II/Plus Multiport Serial Driver +cpufreq + - describes the CPU frequency and voltage scaling support cpqarray.txt - info on using Compaq's SMART2 Intelligent Disk Array Controllers. devices.txt diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/Configure.help linux.21pre3-ac4/Documentation/Configure.help --- linux.21pre3/Documentation/Configure.help 2003-01-07 14:03:08.000000000 +0000 +++ linux.21pre3-ac4/Documentation/Configure.help 2003-01-12 00:31:39.000000000 +0000 @@ -464,8 +464,14 @@ The initial RAM disk is a RAM disk that is loaded by the boot loader (loadlin or lilo) and that is mounted as root before the normal boot procedure. It is typically used to load modules needed to mount the - "real" root file system, etc. See - for details. + "real" root file system, etc. + + Due to a problem elsewhere in the kernel, initial RAM disks _must_ + have the file system on them created with a 1024 byte block size. + If any other value is used, the kernel will be unable to mount the + RAM disk at boot time, causing a kernel panic. + + See for details. Loopback device support CONFIG_BLK_DEV_LOOP @@ -1161,11 +1167,13 @@ If unsure, say N. -HPT366/368/370 chipset support +HPT36X/37X chipset support CONFIG_BLK_DEV_HPT366 HPT366 is an Ultra DMA chipset for ATA-66. HPT368 is an Ultra DMA chipset for ATA-66 RAID Based. HPT370 is an Ultra DMA chipset for ATA-100. + HPT372 is an Ultra DMA chipset for ATA-133. + HPT374 is an Ultra DMA chipset for ATA-133. This driver adds up to 4 more EIDE devices sharing a single interrupt. @@ -1835,6 +1843,20 @@ want), say M here and read . The module will be called lvm-mod.o. +Device-mapper support +CONFIG_BLK_DEV_DM + Device-mapper is a low level volume manager. It works by allowing + people to specify mappings for ranges of logical sectors. Various + mapping types are available, in addition people may write their own + modules containing custom mappings if they wish. + + Higher level volume managers such as LVM2 use this driver. + + If you want to compile this as a module, say M here and read + . The module will be called dm-mod.o. + + If unsure, say N. + Multiple devices driver support (RAID and LVM) CONFIG_MD Support multiple physical spindles through a single logical device. @@ -4583,14 +4605,11 @@ BIOS routines contained in a ROM chip in HP PA-RISC based machines. Enabling this option will implement the linux framebuffer device and an fbcon color text console using calls to the STI BIOS routines. - The HP framebuffer device is usually planar, uses a strange memory + The HP framebuffer device is sometimes planar, using a strange memory layout, and changing the plane mask to create colored pixels - requires a call to the STI routines, so do not expect /dev/fb to - actually be useful. However, it is the best we have as far as - graphics on the HP chipsets due to lack of hardware level - documentation for the various on-board HP chipsets used in these - systems. It is sufficient for basic text console functions, - including fonts. + can require a call to the STI routines, so /dev/fb may not actually + be useful. However, on some systems packed pixel formats are supported. + It is sufficient for basic text console functions, including fonts. You should probably enable this option, unless you are having trouble getting video when booting the kernel (make sure it isn't @@ -4728,12 +4747,11 @@ messages. Most people will want to say N here. If unsure, you will also want to say N. -Matrox unified accelerated driver CONFIG_FB_MATROX - Say Y here if you have a Matrox Millennium, Millennium II, Mystique, - Mystique 220, Productiva G100, Mystique G200, Millennium G200, - Matrox G400, G450 or G550 card in your box. At this time, support for - the G-series digital output is almost non-existant. + Say Y here if you have a Matrox Millennium, Matrox Millennium II, + Matrox Mystique, Matrox Mystique 220, Matrox Productiva G100, Matrox + Mystique G200, Matrox Millennium G200, Matrox Marvel G200 video, + Matrox G400, G450 or G550 card in your box. This driver is also available as a module ( = code which can be inserted and removed from the running kernel whenever you want). @@ -4744,7 +4762,6 @@ module load time. The parameters look like "video=matrox:XXX", and are described in . -Matrox Millennium I/II support CONFIG_FB_MATROX_MILLENIUM Say Y here if you have a Matrox Millennium or Matrox Millennium II video card. If you select "Advanced lowlevel driver options" below, @@ -4752,7 +4769,6 @@ packed pixel, 24 bpp packed pixel and 32 bpp packed pixel. You can also use font widths different from 8. -Matrox Mystique support CONFIG_FB_MATROX_MYSTIQUE Say Y here if you have a Matrox Mystique or Matrox Mystique 220 video card. If you select "Advanced lowlevel driver options" below, @@ -4760,27 +4776,46 @@ packed pixel and 32 bpp packed pixel. You can also use font widths different from 8. -Matrox G100/G200/G400/G450/G550 support -CONFIG_FB_MATROX_G100 - Say Y here if you have a Matrox G100, G200, G400, G450, or G550 - based video card. If you select "Advanced lowlevel driver options", - you should check 8 bpp packed pixel, 16 bpp packed pixel, 24 bpp - packed pixel and 32 bpp packed pixel. You can also use font widths +CONFIG_FB_MATROX_G450 + Say Y here if you have a Matrox G100, G200, G400, G450 or G550 based + video card. If you select "Advanced lowlevel driver options", you + should check 8 bpp packed pixel, 16 bpp packed pixel, 24 bpp packed + pixel and 32 bpp packed pixel. You can also use font widths different from 8. If you need support for G400 secondary head, you must first say Y to "I2C support" and "I2C bit-banging support" in the character devices section, and then to "Matrox I2C support" and "G400 second head - support" here in the framebuffer section. + support" here in the framebuffer section. G450/G550 secondary head + and digital output are supported without additional modules. + + The driver starts in monitor mode. You must use the matroxset tool + (available at ) to + swap primary and secondary head outputs, or to change output mode. + Secondary head driver always start in 640x480 resolution and you + must use fbset to change it. + + Do not forget that second head supports only 16 and 32 bpp + packed pixels, so it is a good idea to compile them into the kernel + too. You can use only some font widths, as the driver uses generic + painting procedures (the secondary head does not use acceleration + engine). - If you have G550, you must also compile support for G450/G550 secondary - head into kernel, otherwise picture will be shown only on the output you - are probably not using... + G450/G550 hardware can display TV picture only from secondary CRTC, + and it performs no scaling, so picture must have 525 or 625 lines. - If you need support for G450 or G550 secondary head, say Y to - "Matrox G450/G550 second head support" below. +CONFIG_FB_MATROX_G100A + Say Y here if you have a Matrox G100, G200 or G400 based + video card. If you select "Advanced lowlevel driver options", you + should check 8 bpp packed pixel, 16 bpp packed pixel, 24 bpp packed + pixel and 32 bpp packed pixel. You can also use font widths + different from 8. + + If you need support for G400 secondary head, you must first say Y to + "I2C support" and "I2C bit-banging support" in the character devices + section, and then to "Matrox I2C support" and "G400 second head + support" here in the framebuffer section. -Matrox I2C support CONFIG_FB_MATROX_I2C This drivers creates I2C buses which are needed for accessing the DDC (I2C) bus present on all Matroxes, an I2C bus which @@ -4794,7 +4829,6 @@ If you compile it as module, it will create a module named i2c-matroxfb.o. -Matrox G400 second head support CONFIG_FB_MATROX_MAVEN WARNING !!! This support does not work with G450 !!! @@ -4823,32 +4857,14 @@ painting procedures (the secondary head does not use acceleration engine). -Matrox G450 second head support -CONFIG_FB_MATROX_G450 - Say Y or M here if you want to use a secondary head (meaning two - monitors in parallel) on G450, or if you are using analog output - of G550. - - If you compile it as module, two modules are created, - matroxfb_crtc2.o and matroxfb_g450.o. Both modules are needed if you - want two independent display devices. - - The driver starts in monitor mode and currently does not support - output in TV modes. You must use the matroxset tool (available - at ) to swap - primary and secondary head outputs. Secondary head driver always - start in 640x480 resolution and you must use fbset to change it. - - Note on most G550 cards the analog output is the secondary head, - so you will need to say Y here to use it. - - Also do not forget that second head supports only 16 and 32 bpp - packed pixels, so it is a good idea to compile them into the kernel - too. You can use only some font widths, as the driver uses generic - painting procedures (the secondary head does not use acceleration - engine). - -Matrox unified driver multihead support +CONFIG_FB_MATROX_PROC + Say Y or M here if you want to access some informations about driver + state through /proc interface. + + You should download matrox_pins tool (available at + ) to get human + readable output. + CONFIG_FB_MATROX_MULTIHEAD Say Y here if you have more than one (supported) Matrox device in your computer and you want to use all of them for different monitors @@ -5294,6 +5310,19 @@ replacement for kerneld.) Say Y here and read about configuring it in . +Kernel .config file saved in kernel image +CONFIG_IKCONFIG + This option enables the complete Linux kernel ".config" file contents + to be saved in the kernel (zipped) image file. It provides + documentation of which kernel options are used in a running kernel or + in an on-disk kernel. It can be extracted from the kernel image file + with a script and used as input to rebuild the current kernel or to + build another kernel. Since the kernel image is zipped, using this + option adds approximately 8 KB to a kernel image file. + This option is not available as a module. If you want a separate + file to save the kernel's .config contents, use 'installkernel' or 'cp' + or a similar tool, or just save it in '/lib/modules/'. + ARP daemon support CONFIG_ARPD Normally, the kernel maintains an internal cache which maps IP @@ -9117,7 +9146,7 @@ Aironet 4500/4800 I365 broken support CONFIG_AIRONET4500_I365 If you have a PCMCIA Aironet 4500/4800 card which you want to use - without the standard PCMCIA cardservices provided by the pcmcia-cs + without the standard PCMCIA card services provided by the pcmcia-cs package, say Y here. This is not recommended, so say N. Aironet 4500/4800 PCMCIA support @@ -10915,31 +10944,41 @@ The safe and default value for this is N. -SysKonnect SK-98xx support +SysKonnect SK-98xx and SK-95xx Gigabit Ethernet Adapter family support CONFIG_SK98LIN - Say Y here if you have a SysKonnect SK-98xx Gigabit Ethernet Server - Adapter. The following adapters are supported by this driver: - - SK-9841 (single link 1000Base-LX) - - SK-9842 (dual link 1000Base-LX) - - SK-9843 (single link 1000Base-SX) - - SK-9844 (dual link 1000Base-SX) - - SK-9821 (single link 1000Base-T) - - SK-9822 (dual link 1000Base-T) - - SK-9861 (single link Volition connector) - - SK-9862 (dual link Volition connector) - The driver also supports the following adapters from Allied Telesyn: - - AT2970... - - The dual link adapters support a link-failover feature. Read - for information about + Say Y here if you have a SysKonnect SK-98xx or SK-95xx Gigabit + Ethernet Server Adapter. The following adapters are supported by + this driver: + - SK-9521 10/100/1000Base-T Adapter + - SK-9821 Gigabit Ethernet 1000Base-T Server Adapter + - SK-9822 Gigabit Ethernet 1000Base-T Dual Port Server Adapter + - SK-9841 Gigabit Ethernet 1000Base-LX Server Adapter + - SK-9842 Gigabit Ethernet 1000Base-LX Dual Port Server Adapter + - SK-9843 Gigabit Ethernet 1000Base-SX Server Adapter + - SK-9844 Gigabit Ethernet 1000Base-SX Dual Port Server Adapter + - SK-9861 Gigabit Ethernet 1000Base-SX Server Adapter + - SK-9862 Gigabit Ethernet 1000Base-SX Dual Port Server Adapter + - SK-9871 Gigabit Ethernet 1000Base-ZX Server Adapter + - SK-9872 Gigabit Ethernet 1000Base-ZX Dual Port Server Adapter + - SK-9821 V2.0 Gigabit Ethernet 10/100/1000Base-T Adapter + - SK-9841 V2.0 Gigabit Ethernet 1000Base-LX Adapter + - SK-9843 V2.0 Gigabit Ethernet 1000Base-SX Adapter + - SK-9851 V2.0 Gigabit Ethernet 1000Base-SX Adapter + - SK-9861 V2.0 Gigabit Ethernet 1000Base-SX Adapter + - SK-9871 V2.0 Gigabit Ethernet 1000Base-ZX Adapter + + The adapters support Jumbo Frames. + The dual link adapters support link-failover and dual port features. + The V2.0 adapters support the scatter-gather functionality with + sendfile(). Read Documentation/networking/sk98lin.txt for information about optional driver parameters. Questions concerning this driver may be addressed to: linux@syskonnect.de If you want to compile this driver as a module ( = code which can be inserted in and removed from the running kernel whenever you want), - say M here and read . This is - recommended. The module will be called sk98lin.o. + say M here and read Documentation/modules.txt. This is recommended. + The module will be called sk98lin.o. Sun GEM support CONFIG_SUNGEM @@ -12699,12 +12738,44 @@ Quota support CONFIG_QUOTA If you say Y here, you will be able to set per user limits for disk - usage (also called disk quotas). Currently, it works only for the - ext2 file system. You need additional software in order to use quota - support; for details, read the Quota mini-HOWTO, available from + usage (also called disk quotas). Currently, it works for the + ext2, ext3, and reiserfs file system. You need additional software + in order to use quota support (you can download sources from + ). For further details, read + the Quota mini-HOWTO, available from . Probably the quota support is only useful for multi user systems. If unsure, say N. +Old quota format support +CONFIG_QFMT_V1 + This quota format was (is) used by kernels earlier than 2.4.??. If + you have quota working and you don't want to convert to new quota + format say Y here. + +VFS v0 quota format support +CONFIG_QFMT_V2 + This quota format allows using quotas with 32-bit UIDs/GIDs. If you + need this functionality say Y here. Note that you will need latest + quota utilities for new quota format with this kernel. + +Compatible quota interfaces +CONFIG_QIFACE_COMPAT + This option will enable old quota interface in kernel. + If you have old quota tools (version <= 3.04) and you don't want to + upgrade them say Y here. + +Original quota interface +CONFIG_QIFACE_V1 + This is the oldest quota interface. It was used for old quota format. + If you have old quota tools and you use old quota format choose this + interface (if unsure, this interface is the best one to choose). + +VFS v0 quota interface +CONFIG_QIFACE_V2 + This quota interface was used by VFS v0 quota format. If you need + support for VFS v0 quota format (eg. you're using quota on ReiserFS) + and you don't want to upgrade quota tools, choose this interface. + Memory Technology Device (MTD) support CONFIG_MTD Memory Technology Devices are flash, RAM and similar chips, often @@ -13925,8 +13996,8 @@ USB Scanner support CONFIG_USB_SCANNER Say Y here if you want to connect a USB scanner to your computer's - USB port. Please read and - for more information. + USB port. Please read for more + information. This code is also available as a module ( = code which can be inserted in and removed from the running kernel whenever you want). @@ -15292,35 +15363,6 @@ Example: mount -t befs /dev/hda2 /mnt -o debug -BeOS filesystem support (BeFS) (read only) -CONFIG_BEFS_FS - The BeOS File System (BeFS) is the native file system of Be, Inc's - BeOS. Notable features include support for arbitrary attributes - on files and directories, and database-like indices on selected - attributes. (Also note that this driver doesn't make those features - available at this time). It is a 64 bit filesystem, so it supports - extremely large volumes and files. - - If you use this filesystem, you should also say Y to at least one - of the NLS (native language support) options below. - - If you don't know what this is about, say N. - - If you want to compile this as a module ( = code which can be - inserted in and removed from the running kernel whenever you want), - say M here and read Documentation/modules.txt. The module will be - called befs.o. - -Debug BeFS -CONFIG_BEFS_DEBUG - If you say Y here, you can use the 'debug' mount option to enable - debugging output from the driver. This is unlike previous versions - of the driver, where enabling this option would turn on debugging - output automatically. - - Example: - mount -t befs /dev/hda2 /mnt -o debug - BFS file system support CONFIG_BFS_FS Boot File System (BFS) is a file system used under SCO UnixWare to @@ -15720,6 +15762,30 @@ If unsure, say N. +Allow direct I/O on files in NFS +CONFIG_NFS_DIRECTIO + There are important applications whose performance or correctness + depends on uncached access to file data. Database clusters (multiple + copies of the same instance running on separate hosts) implement their + own cache coherency protocol that subsumes the NFS cache protocols. + Applications that process datasets considerably larger than the client's + memory do not always benefit from a local cache. A streaming video + server, for instance, has no need to cache the contents of a file. + + This option enables applications to perform direct I/O on files in NFS + file systems using the O_DIRECT open() flag. When O_DIRECT is set for + files, their data is not cached in the system's page cache. Direct + read and write operations are aligned to block boundaries. Data is + moved to and from user-level application buffers directly. + + Unless your program is designed to use O_DIRECT properly, you are much + better off allowing the NFS client to manage caching for you. Misusing + O_DIRECT can cause poor server performance or network storms. This + kernel build option defaults OFF to avoid exposing system administrators + unwittingly to a potentially hazardous feature. + + If unsure, say N. + Root file system on NFS CONFIG_ROOT_NFS If you want your Linux box to mount its whole root file system (the @@ -16116,7 +16182,7 @@ Say Y here if you would like to use hard disks under Linux which were partitioned on a Macintosh. -Windows Logical Disk Manager (Dynamic Disk) support (EXPERIMENTAL) +Windows Logical Disk Manager (Dynamic Disk) support CONFIG_LDM_PARTITION Say Y here if you would like to use hard disks under Linux which were partitioned using Windows 2000's or XP's Logical Disk Manager. @@ -16131,8 +16197,7 @@ Normal partitions are now called Basic Disks under Windows 2000 and XP. - Technical documentation to accompany this driver is available from: - . + For a fuller description read . If unsure, say N. @@ -16205,8 +16270,9 @@ Intel EFI GUID partition support CONFIG_EFI_PARTITION Say Y here if you would like to use hard disks under Linux which - were partitioned using EFI GPT. Presently only useful on the - IA-64 platform. + were partitioned using EFI GPT. This is the default partition + scheme on IA64, and can be used on other platforms when + large block device (64-bit block address) support is desired. Ultrix partition table support CONFIG_ULTRIX_PARTITION @@ -17048,17 +17114,36 @@ HIL keyboard support CONFIG_HIL The "Human Interface Loop" is a older, 8-channel USB-like controller - used in Hewlett Packard PA-RISC based machines. There are a few - cases where it is seen on PC/MAC architectures as well, usually also - manufactured by HP. This driver is based off MACH and BSD drivers, - and implements support for a keyboard attached to the HIL port. + used in several Hewlett Packard models. This driver is based off + MACH and BSD drivers, and implements support for a keyboard attached + to the HIL port, but not for any other types of HIL input devices + like mice or tablets. However, it has been thoroughly tested and is + stable. + Full support for the USB-like functions and non-keyboard channels of - the HIL is not provided for in this driver. There are vestiges of - mouse support in the driver, but it is probably not working. The - necessary hardware documentation to fully support the HIL controller - and interface it to the linux-input API is lacking. + the HIL is currently being added to the PA-RISC port and will + be backported to work on the m68k port as well. + + Enable this option if you intend to use a HIL keyboard as your + primary keyboard and/or do not wish to test the new HIL driver. - Enable this option if you intend to use a HIL keyboard. +HP System Device Controller support +CONFIG_HP_SDC + This option enables supports for the the "System Device Controller", + an i8042 carrying microcode to manage a few miscellanous devices + on some Hewlett Packard systems. The SDC itself contains a 10ms + resolution timer/clock capable of delivering interrupts on periodic + and one-shot basis. The SDC may also be connected to a battery-backed + real-time clock, a basic audio waveform generator, and an HP-HIL + Master Link Controller serving up to seven input devices. + + By itself this option is rather useless, but enabling it will + enable selection of drivers for the abovementioned devices. + It is, however, incompatible with the old, reliable HIL keyboard + driver, and the new HIL driver is experimental, so if you plan to + use a HIL keyboard as your primary keyboard, you may wish to + keep using that driver until the new HIL drivers have had more + testing. Include IOP (IIfx/Quadra 9x0) ADB driver CONFIG_ADB_IOP @@ -17368,6 +17453,19 @@ read . The module will be called istallion.o. +PDC software console support +CONFIG_PDC_CONSOLE + Saying Y here will enable the software based PDC console to be + used as the system console. This is useful for machines in + which the hardware based console has not been written yet. The + following steps must be competed to use the PDC console: + + 1. create the device entry (mknod /dev/ttyB0 c 60 0) + 2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0 + 3. Add device ttyB0 to /etc/securetty (if you want to log on as + root on this console.) + 4. Change the kernel command console parameter to: console=ttyB0 + Microgate SyncLink adapter support CONFIG_SYNCLINK Provides support for the SyncLink ISA and PCI multiprotocol serial @@ -17517,6 +17615,10 @@ doing that; to actually get it to happen you need to pass the option "console=lp0" to the kernel at boot time. + Note that kernel messages can get lost if the printer is out of + paper (or off, or unplugged, or too busy..), but this behaviour + can be changed. See drivers/char/lp.c (do this at your own risk). + If the printer is out of paper (or off, or unplugged, or too busy..) the kernel will stall until the printer is ready again. By defining CONSOLE_LP_STRICT to 0 (at your own risk) you @@ -19022,6 +19124,15 @@ . The module will be called cpuid.o +x86 BIOS Enhanced Disk Drive support +CONFIG_EDD + Say Y or M here if you want to enable BIOS Enhanced Disk Drive + Services real mode BIOS calls to determine which disk + BIOS tries boot from. This information is then exported via /proc. + + This option is experimental, but believed to be safe, + and most disk controller BIOS vendors do not yet implement this feature. + SBC-60XX Watchdog Timer CONFIG_60XX_WDT This driver can be used with the watchdog timer found on some @@ -23070,6 +23181,23 @@ say M here and read . The module will be called radio-sf16fmi.o. +SF16FMR2 Radio +CONFIG_RADIO_SF16FMR2 + Choose Y here if you have one of these FM radio cards. If you + compile the driver into the kernel and your card is not PnP one, you + have to add "sf16fmr2=" to the kernel command line (I/O address is + 0x284 or 0x384, default 0x384). + + In order to control your radio card, you will need to use programs + that are compatible with the Video For Linux API. Information on + this API and pointers to "v4l" programs may be found on the WWW at + . + + If you want to compile this driver as a module ( = code which can be + inserted in and removed from the running kernel whenever you want), + say M here and read . The module + will be called radio-sf16fmr2.o. + Typhoon Radio (a.k.a. EcoRadio) CONFIG_RADIO_TYPHOON Choose Y here if you have one of these FM radio cards, and then fill @@ -25832,6 +25960,14 @@ of the BUG call as well as the EIP and oops trace. This aids debugging but costs about 70-100K of memory. +Morse code panics +CONFIG_PANIC_MORSE + Say Y here to receive panic messages in morse code on your keyboard LEDs, and + optionally the PC speaker, if available. + The kernel param "panicblink" controls this feature, set it to 0 to disable, + 1 for LEDs only, 2 for pc speaker, or 3 for both. If you disable this option, + then you will receive a steady blink on the LEDs instead. + Include kgdb kernel debugger CONFIG_KGDB Include in-kernel hooks for kgdb, the Linux kernel source level @@ -25877,9 +26013,11 @@ U2/Uturn I/O MMU CONFIG_IOMMU_CCIO - Say Y here to enable DMA management routines for the first - generation of PA-RISC cache-coherent machines. Programs the - U2/Uturn chip in "Virtual Mode" and use the I/O MMU. + The U2/UTurn is a bus converter with io mmu present in the Cxxx, D, + J, K, and R class machines. Compiling this driver into the kernel will + not hurt anything, removing it will reduce your kernel by about 14k. + + If unsure, say Y. LBA/Elroy PCI support CONFIG_PCI_LBA @@ -26252,6 +26390,96 @@ written) to implement the policy. If you don't understand what this is all about, it's safe to say 'N'. + For more information, take a look at linux/Documentation/cpufreq or + at + + If in doubt, say N. + +CONFIG_CPU_FREQ_24_API + This enables the /proc/sys/cpu/ sysctl interface for controlling + CPUFreq, as known from the 2.4.-kernel patches for CPUFreq. 2.5 + uses /proc/cpufreq instead. Please note that some drivers do not + work with the 2.4. /proc/sys/cpu sysctl interface, so if in doubt, + say N here. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_X86_POWERNOW_K6 + This adds the CPUFreq driver for mobile AMD K6-2+ and mobile + AMD K6-3+ processors. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_X86_P4_CLOCKMOD + This adds the CPUFreq driver for Intel Pentium 4 / XEON + processors. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_ELAN_CPUFREQ + This adds the CPUFreq driver for AMD Elan SC400 and SC410 + processors. + + You need to specify the processor maximum speed as a boot + parameter (or as module parameter): + elanfreq=maxspeed + with the argument "maxspeed" given in kHz. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_X86_LONGHAUL + This adds the CPUFreq driver for VIA Samuel/CyrixIII, + VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T + processors. + + If you do not want to scale the Front Side Bus or voltage, + pass the module parameter "dont_scale_fsb=1" or + "dont_scale_voltage=1". Additionally, it is advised that + you pass the current Front Side Bus speed (in MHz) to + this module as module parameter "current_fsb", e.g. + "current_fsb=133" for a Front Side Bus speed of 133 MHz. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_X86_SPEEDSTEP + This adds the CPUFreq driver for certain mobile Intel Pentium III + (Coppermine), all mobile Intel Pentium III-M (Tulatin) and all + mobile Intel Pentium 4 P4-Ms. + + If you use a Coppermine Pentium III which is capable of + SpeedStep, you need to pass the boot or module parameter + "speedstep_coppermine=1" to the kernel. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_X86_LONGRUN + This adds the CPUFreq driver for Transmeta Crusoe processors which + support LongRun. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + +CONFIG_X86_GX_SUSPMOD + This add the CPUFreq driver for NatSemi Geode processors which + support suspend modulation. + + For details, take a look at linux/Documentation/cpufreq. + + If in doubt, say N. + SiS CONFIG_DRM_SIS Choose this option if you have a SIS graphics card. AGP support is @@ -26265,7 +26493,7 @@ Slave has its own LEDs CONFIG_ETRAX_ETHERNET_LPSLAVE_HAS_LEDS - Enable if the slave has it's own LEDs. + Enable if the slave has its own LEDs. ATA/IDE support CONFIG_ETRAX_IDE @@ -26435,6 +26663,83 @@ If unsure, say N. +NatSemi SCx200 support +CONFIG_SCx200 + This provides basic support for the National Semiconductor SCx200 + processor. Right now this is just a driver for the GPIO pins. + + If you don't know what to do here, say N. + + This support is also available as a module. If compiled as a + module, it will be called scx200.o. + +NatSemi SCx200 Watchdog +CONFIG_SCx200_WDT + Enable the built-in watchdog timer support on the National + Semiconductor SCx200 processors. + + If compiled as a module, it will be called scx200_watchdog.o. + +Flash device mapped with DOCCS on NatSemi SCx200 +CONFIG_MTD_SCx200_DOCFLASH + Enable support for a flash chip mapped using the DOCCS signal on a + National Semiconductor SCx200 processor. + + If you don't know what to do here, say N. + + If compiled as a module, it will be called scx200_docflash.o. + +NatSemi SCx200 I2C using GPIO pins +CONFIG_SCx200_I2C + Enable the use of two GPIO pins of a SCx200 processor as an I2C bus. + + If you don't know what to do here, say N. + + If compiled as a module, it will be called scx200_i2c.o. + +GPIO pin used for SCL +CONFIG_SCx200_I2C_SCL + Enter the GPIO pin number used for the SCL signal. This value can + also be specified with a module parameter. + +GPIO pin used for SDA +CONFIG_SCx200_I2C_SDA + Enter the GPIO pin number used for the SSA signal. This value can + also be specified with a module parameter. + +NatSemi SCx200 ACCESS.bus +CONFIG_SCx200_ACB + Enable the use of the ACCESS.bus controllers of a SCx200 processor. + + If you don't know what to do here, say N. + + If compiled as a module, it will be called scx200_acb.o. + +IPMI top-level message handler +CONFIG_IPMI_HANDLER + This enables the central IPMI message handler, required for IPMI + to work. Note that you must have this enabled to do any other IPMI + things. See IPMI.txt for more details. + +Generate a panic event to all BMCs on a panic +CONFIG_IPMI_PANIC_EVENT + When a panic occurs, this will cause the IPMI message handler to + generate an IPMI event describing the panic to each interface + registered with the message handler. + +Device interface for IPMI +CONFIG_IPMI_DEVICE_INTERFACE + This provides an IOCTL interface to the IPMI message handler so + userland processes may use IPMI. It supports poll() and select(). + +IPMI KCS handler +CONFIG_IPMI_KCS + Provides a driver for a KCS-style interface to a BMC. + +IPMI Watchdog Timer +CONFIG_IPMI_WATCHDOG + This enables the IPMI watchdog timer. + # # A couple of things I keep forgetting: # capitalize: AppleTalk, Ethernet, DOS, DMA, FAT, FTP, Internet, diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/cpufreq linux.21pre3-ac4/Documentation/cpufreq --- linux.21pre3/Documentation/cpufreq 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/Documentation/cpufreq 2003-01-06 16:33:44.000000000 +0000 @@ -0,0 +1,363 @@ + CPU frequency and voltage scaling code in the Linux(TM) kernel + + + L i n u x C P U F r e q + + + + + Dominik Brodowski + David Kimdon + + + + Clock scaling allows you to change the clock speed of the CPUs on the + fly. This is a nice method to save battery power, because the lower + the clock speed, the less power the CPU consumes. + + + +Contents: +--------- +1. Supported architectures +2. User interface +2.1 /proc/cpufreq interface [2.6] +2.2. /proc/sys/cpu/ interface [2.4] +3. CPUFreq core and interfaces +3.1 General information +3.2 CPUFreq notifiers +3.3 CPUFreq architecture drivers +4. Mailing list and Links + + + +1. Supported architectures +========================== + +ARM: + ARM Integrator, SA 1100, SA1110 +-------------------------------- + No known issues. + + +AMD Elan: + SC400, SC410 +-------------------------------- + You need to specify the highest allowed CPU frequency as + a module parameter ("max_freq") or as boot parameter + ("elanfreq="). Else the available speed range will be + limited to the speed at which the CPU runs while this + module is loaded. + + +VIA Cyrix Longhaul: + VIA Samuel/CyrixIII, VIA Cyrix Samuel/C3, + VIA Cyrix Ezra, VIA Cyrix Ezra-T +-------------------------------- + If you do not want to scale the Front Side Bus or voltage, + pass the module parameter "dont_scale_fsb=1" or + "dont_scale_voltage=1". Additionally, it is advised that + you pass the current Front Side Bus speed (in MHz) to + this module as module parameter "current_fsb", e.g. + "current_fsb=133" for a Front Side Bus speed of 133 MHz. + + +Intel SpeedStep: + certain mobile Intel Pentium III (Coppermine), and all mobile + Intel Pentium III-M (Tualatin) and mobile Intel Pentium 4 P4-Ms. +-------------------------------- + Unfortunately, only modern Intel ICH2-M and ICH3-M chipsets are + supported yet. + + +P4 CPU Clock Modulation: + Intel Pentium 4 Xeon processors +--------------------------------- + Note that you can only switch the speed of two logical CPUs at + once - but each phyiscal CPU may have different throttling levels. + + +PowerNow! K6: + mobile AMD K6-2+ / mobile K6-3+: +-------------------------------- + No known issues. + + +Transmeta Crusoe Longrun: + Transmeta Crusoe processors: +-------------------------------- + It is recommended to use the 2.6. /proc/cpufreq interface when + using this driver + + + +2. User Interface +================= + +2.1 /proc/cpufreq interface [2.6] +*********************************** + +Starting in the patches for kernel 2.5.33, CPUFreq uses a "policy" +interface /proc/cpufreq. + +When you "cat" this file, you'll find something like: + +-- + minimum CPU frequency - maximum CPU frequency - policy +CPU 0 1200000 ( 75%) - 1600000 (100%) - performance +-- + +This means the current policy allows this CPU to be run anywhere +between 1.2 GHz (the value is in kHz) and 1.6 GHz with an eye towards +performance. + +To change the policy, "echo" the desired new policy into +/proc/cpufreq. Use one of the following formats: + +cpu_nr:min_freq:max_freq:policy +cpu_nr%min_freq%max_freq%policy +min_freq:max_freq:policy +min_freq%max_freq%policy + +with cpu_nr being the CPU which shall be affected, min_freq and +max_freq the lower and upper limit of the CPU core frequency in kHz, +and policy either "performance" or "powersave". +A few examples: + +root@notebook:#echo -n "0:0:0:powersave" > /proc/cpufreq + sets the CPU #0 to the lowest supported frequency. + +root@notebook:#echo -n "1%100%100%performance" > /proc/cpufreq + sets the CPU #1 to the highest supported frequency. + +root@notebook:#echo -n "1000000:2000000:performance" > /proc/cpufreq + to set the frequency of all CPUs between 1 GHz and 2 GHz and to + the policy "performance". + +Please note that the values you "echo" into /proc/cpufreq are +validated first, and may be limited by hardware or thermal +considerations. Because of this, a read from /proc/cpufreq might +differ from what was written into it. + + +When you read /proc/cpufreq for the first time after a CPUFreq driver +has been initialized, you'll see the "default policy" for this +driver. If this does not suit your needs, you can pass a boot +parameter to the cpufreq core. Use the following syntax for this: + "cpufreq=min_freq:max_freq:policy", i.e. you may not chose a +specific CPU and you need to specify the limits in kHz and not in +per cent. + + +2.2 /proc/cpufreq interface [2.4] +*********************************** + +Previsiously (and still available as a config option), CPUFreq used +a "sysctl" interface which is located in + /proc/sys/cpu/0/ + /proc/sys/cpu/1/ ... (SMP only) + +In these directories, you will find three files of importance for +CPUFreq: speed-max, speed-min and speed: + +speed shows the current CPU frequency in kHz, +speed-min the minimum supported CPU frequency, and +speed-max the maximum supported CPU frequency. + + +To change the CPU frequency, "echo" the desired CPU frequency (in kHz) +to speed. For example, to set the CPU speed to the lowest/highest +allowed frequency do: + +root@notebook:# cat /proc/sys/cpu/0/speed-min > /proc/sys/cpu/0/speed +root@notebook:# cat /proc/sys/cpu/0/speed-max > /proc/sys/cpu/0/speed + + + +3. CPUFreq core and interfaces +=============================== + +3.1 General information +************************* + +The CPUFreq core code is located in linux/kernel/cpufreq.c. This +cpufreq code offers a standardized interface for the CPUFreq +architecture drivers (those pieces of code that do actual +frequency transitions), as well as to "notifiers". These are device +drivers or other part of the kernel that need to be informed of +policy changes (like thermal modules like ACPI) or of all +frequency changes (like timing code) or even need to force certain +speed limits (like LCD drivers on ARM architecture). Additionally, the +kernel "constant" loops_per_jiffy is updated on frequency changes +here. + + +3.2 CPUFreq notifiers +*********************** + +CPUFreq notifiers conform to the standard kernel notifier interface. +See linux/include/linux/notifier.h for details on notifiers. + +There are two different CPUFreq notifiers - policy notifiers and +transition notifiers. + + +3.2.1 CPUFreq policy notifiers +****************************** + +These are notified when a new policy is intended to be set. Each +CPUFreq policy notifier is called three times for a policy transition: + +1.) During CPUFREQ_ADJUST all CPUFreq notifiers may change the limit if + they see a need for this - may it be thermal considerations or + hardware limitations. + +2.) During CPUFREQ_INCOMPATIBLE only changes may be done in order to avoid + hardware failure. + +3.) And during CPUFREQ_NOTIFY all notifiers are informed of the new policy + - if two hardware drivers failed to agree on a new policy before this + stage, the incompatible hardware shall be shut down, and the user + informed of this. + +The phase is specified in the second argument to the notifier. + +The third argument, a void *pointer, points to a struct cpufreq_policy +consisting of five values: cpu, min, max, policy and max_cpu_freq. Min +and max are the lower and upper frequencies (in kHz) of the new +policy, policy the new policy, cpu the number of the affected CPU or +CPUFREQ_ALL_CPUS for all CPUs; and max_cpu_freq the maximum supported +CPU frequency. This value is given for informational purposes only. + + +3.2.2 CPUFreq transition notifiers +********************************** + +These are notified twice when the CPUfreq driver switches the CPU core +frequency and this change has any external implications. + +The second argument specifies the phase - CPUFREQ_PRECHANGE or +CPUFREQ_POSTCHANGE. + +The third argument is a struct cpufreq_freqs with the following +values: +cpu - number of the affected CPU or CPUFREQ_ALL_CPUS +old - old frequency +new - new frequency + + +3.3 CPUFreq architecture drivers +********************************** + +CPUFreq architecture drivers are the pieces of kernel code that +actually perform CPU frequency transitions. These need to be +initialized separately (separate initcalls), and may be +modularized. They interact with the CPUFreq core in the following way: + +cpufreq_register() +------------------ +cpufreq_register registers an arch driver to the CPUFreq core. Please +note that only one arch driver may be registered at any time. -EBUSY +is returned when an arch driver is already registered. The argument to +cpufreq_register, struct cpufreq_driver *driver, is described later. + +cpufreq_unregister() +-------------------- +cpufreq_unregister unregisters an arch driver, e.g. on module +unloading. Please note that there is no check done that this is called +from the driver which actually registered itself to the core, so +please only call this function when you are sure the arch driver got +registered correctly before. + +cpufreq_notify_transition() +--------------------------- +On "dumb" hardware where only fixed frequency can be set, the driver +must call cpufreq_notify_transition() once before, and once after the +actual transition. + +struct cpufreq_driver +--------------------- +On initialization, the arch driver is supposed to pass a pointer +to a struct cpufreq_driver *cpufreq_driver consisting of the following +entries: + +cpufreq_verify_t verify: This is a pointer to a function with the + following definition: + int verify_function (struct cpufreq_policy *policy). + This function must verify the new policy is within the limits + supported by the CPU, and at least one supported CPU is within + this range. It may be useful to use cpufreq.h / + cpufreq_verify_within_limits for this. If this is called with + CPUFREQ_ALL_CPUS, and there is no common subset of frequencies + for all CPUs, exit with an error. + +cpufreq_setpolicy_t setpolicy: This is a pointer to a function with + the following definition: + int setpolicy_function (struct cpufreq_policy *policy). + This function must set the CPU to the new policy. If it is a + "dumb" CPU which only allows fixed frequencies to be set, it + shall set it to the lowest within the limit for + CPUFREQ_POLICY_POWERSAVE, and to the highest for + CPUFREQ_POLICY_PERFORMANCE. Once CONFIG_CPU_FREQ_DYNAMIC is + implemented, it can use a dynamic method to adjust the speed + between the lower and upper limit. + +struct cpufreq_policy *policy: This is an array of NR_CPUS struct + cpufreq_policies, containing the current policies set for these + CPUs. Note that policy[cpu].max_cpu_freq must contain the + absolute maximum CPU frequency supported by the specified cpu. + +In case the driver is expected to run with the 2.4.-style API +(/proc/sys/cpu/.../), two more values must be passed +#ifdef CONFIG_CPU_FREQ_24_API + unsigned int cpu_min_freq[NR_CPUS]; + unsigned int cpu_cur_freq[NR_CPUS]; +#endif + with cpu_min_freq[cpu] being the minimum CPU frequency + supported by the CPU; and the entries in cpu_cur_freq + reflecting the current speed of the appropriate CPU. + +Some Requirements to CPUFreq architecture drivers +------------------------------------------------- +* Only call cpufreq_register() when the ability to switch CPU + frequencies is _verified_ or can't be missing. Also, all + other initialization must be done beofre this call, as + cpfureq_register calls the driver's verify and setpolicy code for + each CPU. +* cpufreq_unregister() may only be called if cpufreq_register() has + been successfully(!) called before. +* kfree() the struct cpufreq_driver only after the call to + cpufreq_unregister(), unless cpufreq_register() failed. + + + +4. Mailing list and Links +************************* + + +Mailing List +------------ +There is a CPU frequency changing CVS commit and general list where +you can report bugs, problems or submit patches. To post a message, +send an email to cpufreq@www.linux.org.uk, to subscribe go to +http://www.linux.org.uk/mailman/listinfo/cpufreq. Previous post to the +mailing list are available to subscribers at +http://www.linux.org.uk/mailman/private/cpufreq/. + + +Links +----- +the FTP archives: +* ftp://ftp.linux.org.uk/pub/linux/cpufreq/ + +how to access the CVS repository: +* http://cvs.arm.linux.org.uk/ + +the CPUFreq Mailing list: +* http://www.linux.org.uk/mailman/listinfo/cpufreq + +Clock and voltage scaling for the SA-1100: +* http://www.lart.tudelft.nl/projects/scaling + +CPUFreq project homepage +* http://www.brodo.de/cpufreq/ diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/DocBook/videobook.tmpl linux.21pre3-ac4/Documentation/DocBook/videobook.tmpl --- linux.21pre3/Documentation/DocBook/videobook.tmpl 2003-01-07 14:02:07.000000000 +0000 +++ linux.21pre3-ac4/Documentation/DocBook/videobook.tmpl 2003-01-08 15:25:42.000000000 +0000 @@ -146,16 +146,17 @@ int __init myradio_init(struct video_init *v) { - if(check_region(io, MY_IO_SIZE)) + if(!request_region(io, MY_IO_SIZE, "myradio")) { printk(KERN_ERR "myradio: port 0x%03X is in use.\n", io); return -EBUSY; } - if(video_device_register(&my_radio, VFL_TYPE_RADIO)==-1) + if(video_device_register(&my_radio, VFL_TYPE_RADIO)==-1) { + release_region(io, MY_IO_SIZE); return -EINVAL; - request_region(io, MY_IO_SIZE, "myradio"); + } return 0; } @@ -920,7 +921,7 @@ int __init mycamera_init(struct video_init *v) { - if(check_region(io, MY_IO_SIZE)) + if(!request_region(io, MY_IO_SIZE, "mycamera")) { printk(KERN_ERR "mycamera: port 0x%03X is in use.\n", io); @@ -928,9 +929,10 @@ } if(video_device_register(&my_camera, - VFL_TYPE_GRABBER)==-1) + VFL_TYPE_GRABBER)==-1) { + release_region(io, MY_IO_SIZE); return -EINVAL; - request_region(io, MY_IO_SIZE, "mycamera"); + } return 0; } diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/DriverFixers linux.21pre3-ac4/Documentation/DriverFixers --- linux.21pre3/Documentation/DriverFixers 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/Documentation/DriverFixers 2003-01-06 15:44:42.000000000 +0000 @@ -0,0 +1,75 @@ +People who fix drivers as a business - ie for money. (No recommendation, +business association or other relationship implied. This for the benefit of +American lawyers is just a list of people who have asked to be listed - nothing +more). + +Companies Who Will Do Small Contract Work +----------------------------------------- + +Company: BitWizard +Contact: Rogier Wolff +E-Mail: R.E.Wolff@BitWizard.nl + +Company: Caederus +Contact: Justin Mitchell +E-Mail: info@caederus.com +Location: Swansea, Wales, UK +URL: http://www.caederus.com/ + +Company: Calsoft Inc +Contact: Anupam Bhide +E-Mail: anupam@calsoftinc.com +URL: http://www.calsoftinc.com +Location: Pune, India + +Company: Hansen Partnership Inc +Contact: James Bottomley +E-Mail: James.Bottomley@HansenPartnership.com +Location: 1, Partridge Square, Oswego, Illinois 60543, USA + +Company: Linking +Contact: Elmer Joandi +E-Mail: elmer@linkingsoft.com + +Company: Penguru Consulting, LLC +Contact: Komron Takmil +E-Mail: komron@penguru.net +Location: Salt Lake City, UT USA + +Company: 7Chips +Contact: Vadim Lebedev +E-Mail: vadim@7chips.com +Location: Paris, France +Notes: Experienced in Linux and uClinux on x86/ARM/Motorola + +Company: Weinigel Ingenjörsbyrå AB +Contact: Christer Weinigel +E-Mail: christer@weinigel.se +Location: Stockholm, Sweden + +Company: WildOpenSource +Contact: Martin Hicks +E-Mail: info@wildopensource.com + + +Companies Only Interested In Larger ($10000+) Jobs +-------------------------------------------------- + + + +Companies Only Interested In Very Large ($100000+) Jobs +------------------------------------------------------- + + +To be added to the list: email giving the +following information + +Company: CompanyName [Required] +Contact: ContactName [Required] +E-Mail: An email address [Required] +URL: Web site [Optional] +Location: Area/Country [Optional] +Telephone: Contact phone number [Optional] +Speciality: Any specific speciality [Optional] +Notes: Any other notes (eg certifications, specialities) + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/i386/zero-page.txt linux.21pre3-ac4/Documentation/i386/zero-page.txt --- linux.21pre3/Documentation/i386/zero-page.txt 2003-01-07 14:02:06.000000000 +0000 +++ linux.21pre3-ac4/Documentation/i386/zero-page.txt 2003-01-08 15:33:39.000000000 +0000 @@ -31,6 +31,7 @@ 0x1e0 unsigned long ALT_MEM_K, alternative mem check, in Kb 0x1e8 char number of entries in E820MAP (below) +0x1e9 unsigned char number of entries in EDDBUF (below) 0x1f1 char size of setup.S, number of sectors 0x1f2 unsigned short MOUNT_ROOT_RDONLY (if !=0) 0x1f4 unsigned short size of compressed kernel-part in the @@ -66,6 +67,7 @@ 0x220 4 bytes (setup.S) 0x224 unsigned short setup.S heap end pointer 0x2d0 - 0x600 E820MAP +0x600 - 0x7D4 EDDBUF (setup.S) 0x800 string, 2K max COMMAND_LINE, the kernel commandline as copied using CL_OFFSET. diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre3/Documentation/IPMI.txt linux.21pre3-ac4/Documentation/IPMI.txt --- linux.21pre3/Documentation/IPMI.txt 1970-01-01 01:00:00.000000000 +0100 +++ linux.21pre3-ac4/Documentation/IPMI.txt 2003-01-09 00:30:24.000000000 +0000 @@ -0,0 +1,352 @@ + + The Linux IPMI Driver + --------------------- + Corey Minyard + + + +This document describes how to use the IPMI driver for Linux. If you +are not familiar with IPMI itself, see the web site at +http://www.intel.com/design/servers/ipmi/index.htm. IPMI is a big +subject and I can't cover it all here! + +Basic Design +------------ + +The Linux IPMI driver is designed to be very modular and flexible, you +only need to take the pieces you need and you can use it in many +different ways. Because of that, it's broken into many chunks of +code. These chunks are: + +ipmi_msghandler - This is the central piece of software for the IPMI +system. It handles all messages, message timing, and responses. The +IPMI users tie into this, and the IPMI physical interfaces (called +System Management Interfaces, or SMIs) also tie in here. This +provides the kernelland interface for IPMI, but does not provide an +interface for use by application processes. + +ipmi_devintf - This provides a userland IOCTL interface for the IPMI +driver, each open file for this device ties in to the message handler +as an IPMI user. + +ipmi_kcs_drv - A driver for the KCS SMI. Most system have a KCS +interface for IPMI. + + +Much documentation for the interface is in the include files. The +IPMI include files are: + +ipmi.h - Contains the user interface and IOCTL interface for IPMI. + +ipmi_smi.h - Contains the interface for SMI drivers to use. + +ipmi_msgdefs.h - General definitions for base IPMI messaging. + + +Addressing +---------- + +The IPMI addressing works much like IP addresses, you have an overlay +to handle the different address types. The overlay is: + + struct ipmi_addr + { + int addr_type; + short channel; + char data[IPMI_MAX_ADDR_SIZE]; + }; + +The addr_type determines what the address really is. The driver +currently understands two different types of addresses. + +"System Interface" addresses are defined as: + + struct ipmi_system_interface_addr + { + int addr_type; + short channel; + }; + +and the type is IPMI_SYSTEM_INTERFACE_ADDR_TYPE. This is used for talking +straight to the BMC on the current card. The channel must be +IPMI_BMC_CHANNEL. + +Messages that are destined to go out on the IPMB bus use the +IPMI_IPMB_ADDR_TYPE address type. The format is + + struct ipmi_ipmb_addr + { + int addr_type; + short channel; + unsigned char slave_addr; + unsigned char lun; + }; + +The "channel" here is generally zero, but some devices support more +than one channel, it corresponds to the channel as defined in the IPMI +spec. + + +Messages +-------- + +Messages are defined as: + +struct ipmi_msg +{ + unsigned char netfn; + unsigned char lun; + unsigned char cmd; + unsigned char *data; + int data_len; +}; + +The driver takes care of adding/stripping the header information. The +data portion is just the data to be send (do NOT put addressing info +here) or the response. Note that the completion code of a response is +the first item in "data", it is not stripped out because that is how +all the messages are defined in the spec (and thus makes counting the +offsets a little easier :-). + +When using the IOCTL interface from userland, you must provide a block +of data for "data", fill it, and set data_len to the length of the +block of data, even when receiving messages. Otherwise the driver +will have no place to put the message. + +Messages coming up from the message handler in kernelland will come in +as: + + struct ipmi_recv_msg + { + struct list_head link; + + /* The type of message as defined in the "Receive Types" + defines above. */ + int recv_type; + + ipmi_user_t *user; + struct ipmi_addr addr; + long msgid; + struct ipmi_msg msg; + + /* Call this when done with the message. It will presumably free + the message and do any other necessary cleanup. */ + void (*done)(struct ipmi_recv_msg *msg); + + /* Place-holder for the data, don't make any assumptions about + the size or existence of this, since it may change. */ + unsigned char msg_data[IPMI_MAX_MSG_LENGTH]; + }; + +You should look at the receive type and handle the message +appropriately. + + +The Upper Layer Interface (Message Handler) +------------------------------------------- + +The upper layer of the interface provides the users with a consistent +view of the IPMI interfaces. It allows multiple SMI interfaces to be +addressed (because some boards actually have multiple BMCs on them) +and the user should not have to care what type of SMI is below them. + + +Creating the User + +To user the message handler, you must first create a user using +ipmi_create_user. The interface number specifies which SMI you want +to connect to, and you must supply callback functions to be called +when data comes in. The callback function can run at interrupt level, +so be careful using the callbacks. This also allows to you pass in a +piece of data, the handler_data, that will be passed back to you on +all calls. + +Once you are done, call ipmi_destroy_user() to get rid of the user. + +From userland, opening the device automatically creates a user, and +closing the device automatically destroys the user. + + +Messaging + +To send a message from kernel-land, the ipmi_request() call does +pretty much all message handling. Most of the parameter are +self-explanatory. However, it takes a "msgid" parameter. This is NOT +the sequence number of messages. It is simply a long value that is +passed back when the response for the message is returned. You may +use it for anything you like. + +Responses come back in the function pointed to by the ipmi_recv_hndl +field of the "handler" that you passed in to ipmi_create_user(). +Remember again, these may be running at interrupt level. Remember to +look at the receive type, too. + +From userland, you fill out an ipmi_req_t structure and use the +IPMICTL_SEND_COMMAND ioctl. For incoming stuff, you can use select() +or poll() to wait for messages to come in. However, you cannot use +read() to get them, you must call the IPMICTL_RECEIVE_MSG with the +ipmi_recv_t structure to actually get the message. Remember that you +must supply a pointer to a block of data in the msg.data field, and +you must fill in the msg.data_len field with the size of the data. +This gives the receiver a place to actually put the message. + +If the message cannot fit into the data you provide, you will get an +EMSGSIZE error and the driver will leave the data in the receive +queue. If you want to get it and have it truncate the message, us +the IPMICTL_RECEIVE_MSG_TRUNC ioctl. + +When you send a command (which is defined by the lowest-order bit of +the netfn per the IPMI spec) on the IPMB bus, the driver will +automatically assign the sequence number to the command and save the +command. If the response is not receive in the IPMI-specified 5 +seconds, it will generate a response automatically saying the command +timed out. If an unsolicited response comes in (if it was after 5 +seconds, for instance), that response will be ignored. + +In kernelland, after you receive a message and are done with it, you +MUST call ipmi_free_recv_msg() on it, or you will leak messages. Note +that you should NEVER mess with the "done" field of a message, that is +required to properly clean up the message. + +Note that when sending, there is an ipmi_request_supply_msgs() call +that lets you supply the smi and receive message. This is useful for +pieces of code that need to work even if the system is out of buffers +(the watchdog timer uses this, for instance). You supply your own +buffer and own free routines. This is not recommended for normal use, +though, since it is tricky to manage your own buffers. + + +Events and Incoming Commands + +The driver takes care of polling for IPMI events and receiving +commands (commands are messages that are not responses, they are +commands that other things on the IPMB bus have sent you). To receive +these, you must register for them, they will not automatically be sent +to you. + +To receive events, you must call ipmi_set_gets_events() and set the +"val" to non-zero. Any events that have been received by the driver +since startup will immediately be delivered to the first user that +registers for events. After that, if multiple users are registered +for events, they will all receive all events that come in. + +For receiving commands, you have to individually register commands you +want to receive. Call ipmi_register_for_cmd() and supply the netfn +and command name for each command you want to receive. Only one user +may be registered for each netfn/cmd, but different users may register +for different commands. + +From userland, equivalent IOCTLs are provided to do these functions. + + +The Lower Layer (SMI) Interface +------------------------------- + +As mentioned before, multiple SMI interfaces may be registered to the +message handler, each of these is assigned an interface number when +they register with the message handler. They are generally assigned +in the order they register, although if an SMI unregisters and then +another one registers, all bets are off. + +The ipmi_smi.h defines the interface for SMIs, see that for more +details. + + +The KCS Driver +-------------- + +The KCS driver allows up to 4 KCS interfaces to be configured in the +system. By default, the driver will register one KCS interface at the +spec-specified I/O port 0xca2 without interrupts. You can change this +at module load time (for a module) with: + + insmod ipmi_kcs_drv.o kcs_ports=,... kcs_addrs=, + kcs_irqs=,... kcs_trydefaults=[0|1] + +The KCS driver supports two types of interfaces, ports (for I/O port +based KCS interfaces) and memory addresses (for KCS interfaces in +memory). The driver will support both of them simultaneously, setting +the port to zero (or just not specifying it) will allow the memory +address to be used. The port will override the memory address if it +is specified and non-zero. kcs_trydefaults sets whether the standard +IPMI interface at 0xca2 and any interfaces specified by ACPE are +tried. By default, the driver tries it, set this value to zero to +turn this off. + +When compiled into the kernel, the addresses can be specified on the +kernel command line as: + + ipmi_kcs=:,:....,[nodefault] + +The values is either "p" or "m" for port or memory +addresses. So for instance, a KCS interface at port 0xca2 using +interrupt 9 and a memory interface at address 0xf9827341 with no +interrupt would be specified "ipmi_kcs=p0xca2:9,m0xf9827341". +If you specify zero for in irq or don't specify it, the driver will +run polled unless the software can detect the interrupt to use in the +ACPI tables. + +By default, the driver will attempt to detect a KCS device at the +spec-specified 0xca2 address and any address specified by ACPI. If +you want to turn this off, use the "nodefault" option. + +If you have high-res timers compiled into the kernel, the driver will +use them to provide much better performance. Note that if you do not +have high-res timers enabled in the kernel and you don't have +interrupts enabled, the driver will run VERY slowly. Don't blame me, +the KCS interface sucks. + + +Other Pieces +------------ + +Watchdog + +A watchdog timer is provided that implements the Linux-standard +watchdog timer interface. It has three module parameters that can be +used to control it: + + insmod ipmi_watchdog timeout= pretimeout= action= + preaction= preop= + +The timeout is the number of seconds to the action, and the pretimeout +is the amount of seconds before the reset that the pre-timeout panic will +occur (if pretimeout is zero, then pretimeout will not be enabled). + +The action may be "reset", "power_cycle", or "power_off", and +specifies what to do when the timer times out, and defaults to +"reset". + +The preaction may be "pre_smi" for an indication through the SMI +interface, "pre_int" for an indication through the SMI with an +interrupts, and "pre_nmi" for a NMI on a preaction. This is how +the driver is informed of the pretimeout. + +The preop may be set to "preop_none" for no operation on a pretimeout, +"preop_panic" to set the preoperation to panic, or "preop_give_data" +to provide data to read from the watchdog device when the pretimeout +occurs. A "pre_nmi" setting CANNOT be used with "preop_give_data" +because you can't do data operations from an NMI. + +When preop is set to "preop_give_data", one byte comes ready to read +on the device when the pretimeout occurs. Select and fasync work on +the device, as well. + +When compiled into the kernel, the kernel command line is available +for configuring the watchdog: + + ipmi_wdog=[,[,