diff options
Diffstat (limited to 'arch/i386')
62 files changed, 794 insertions, 693 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 9ba33490874..b22f003eaa6 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -14,6 +14,10 @@ config X86 486, 586, Pentiums, and various instruction-set-compatible chips by AMD, Cyrix, and others. +config SEMAPHORE_SLEEPERS + bool + default y + config MMU bool default y @@ -33,6 +37,10 @@ config GENERIC_IOMAP bool default y +config ARCH_MAY_HAVE_PC_FDC + bool + default y + source "init/Kconfig" menu "Processor type and features" @@ -754,6 +762,7 @@ config NUMA depends on SMP && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI)) default n if X86_PC default y if (X86_NUMAQ || X86_SUMMIT) + select SPARSEMEM_STATIC # Need comments to help the hapless user trying to turn on NUMA support comment "NUMA (NUMA-Q) requires SMP, 64GB highmem support" @@ -1312,6 +1321,11 @@ config GENERIC_IRQ_PROBE bool default y +config GENERIC_PENDING_IRQ + bool + depends on GENERIC_HARDIRQS && SMP + default y + config X86_SMP bool depends on SMP && !X86_VOYAGER diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S index 8cb420f40c5..ca668d9df16 100644 --- a/arch/i386/boot/setup.S +++ b/arch/i386/boot/setup.S @@ -82,7 +82,7 @@ start: # This is the setup header, and it must start at %cs:2 (old 0x9020:2) .ascii "HdrS" # header signature - .word 0x0203 # header version number (>= 0x0105) + .word 0x0204 # header version number (>= 0x0105) # or else old loadlin-1.5 will fail) realmode_swtch: .word 0, 0 # default_switch, SETUPSEG start_sys_seg: .word SYSSEG diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c index 6835f6d47c3..05798419a6a 100644 --- a/arch/i386/boot/tools/build.c +++ b/arch/i386/boot/tools/build.c @@ -177,7 +177,9 @@ int main(int argc, char ** argv) die("Output: seek failed"); buf[0] = (sys_size & 0xff); buf[1] = ((sys_size >> 8) & 0xff); - if (write(1, buf, 2) != 2) + buf[2] = ((sys_size >> 16) & 0xff); + buf[3] = ((sys_size >> 24) & 0xff); + if (write(1, buf, 4) != 4) die("Write of image length failed"); return 0; /* Everything is OK */ diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index c52b4fad011..f10de0f2c5e 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \ - doublefault.o quirks.o + doublefault.o quirks.o i8237.o obj-y += cpu/ obj-y += timers/ diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 0fb23c30eb9..a63351c085c 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -814,6 +814,9 @@ static void __init acpi_process_madt(void) if (!error) { acpi_lapic = 1; +#ifdef CONFIG_X86_GENERICARCH + generic_bigsmp_probe(); +#endif /* * Parse MADT IO-APIC entries */ diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 4553ffd94b1..46ce9b248f5 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -613,8 +613,8 @@ void __devinit cpu_init(void) memcpy(thread->tls_array, &per_cpu(cpu_gdt_table, cpu), GDT_ENTRY_TLS_ENTRIES * 8); - __asm__ __volatile__("lgdt %0" : : "m" (cpu_gdt_descr[cpu])); - __asm__ __volatile__("lidt %0" : : "m" (idt_descr)); + load_gdt(&cpu_gdt_descr[cpu]); + load_idt(&idt_descr); /* * Delete NT @@ -642,12 +642,12 @@ void __devinit cpu_init(void) asm volatile ("xorl %eax, %eax; movl %eax, %fs; movl %eax, %gs"); /* Clear all 6 debug registers: */ - -#define CD(register) set_debugreg(0, register) - - CD(0); CD(1); CD(2); CD(3); /* no db4 and db5 */; CD(6); CD(7); - -#undef CD + set_debugreg(0, 0); + set_debugreg(0, 1); + set_debugreg(0, 2); + set_debugreg(0, 3); + set_debugreg(0, 6); + set_debugreg(0, 7); /* * Force FPU initialization: diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index 04e3563da4f..bf02b5026e6 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -64,8 +64,6 @@ static int dont_scale_voltage; #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "longhaul", msg) -#define __hlt() __asm__ __volatile__("hlt": : :"memory") - /* Clock ratios multiplied by 10 */ static int clock_ratio[32]; static int eblcr_table[32]; @@ -168,11 +166,9 @@ static void do_powersaver(union msr_longhaul *longhaul, outb(0xFE,0x21); /* TMR0 only */ outb(0xFF,0x80); /* delay */ - local_irq_enable(); - - __hlt(); + safe_halt(); wrmsrl(MSR_VIA_LONGHAUL, longhaul->val); - __hlt(); + halt(); local_irq_disable(); @@ -251,9 +247,7 @@ static void longhaul_setstate(unsigned int clock_ratio_index) bcr2.bits.CLOCKMUL = clock_ratio_index; local_irq_disable(); wrmsrl (MSR_VIA_BCR2, bcr2.val); - local_irq_enable(); - - __hlt(); + safe_halt(); /* Disable software clock multiplier */ rdmsrl (MSR_VIA_BCR2, bcr2.val); diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c index ba4b01138c8..ff87cc22b32 100644 --- a/arch/i386/kernel/cpu/cyrix.c +++ b/arch/i386/kernel/cpu/cyrix.c @@ -132,11 +132,7 @@ static void __init set_cx86_memwb(void) setCx86(CX86_CCR2, getCx86(CX86_CCR2) & ~0x04); /* set 'Not Write-through' */ cr0 = 0x20000000; - __asm__("movl %%cr0,%%eax\n\t" - "orl %0,%%eax\n\t" - "movl %%eax,%%cr0\n" - : : "r" (cr0) - :"ax"); + write_cr0(read_cr0() | cr0); /* CCR2 bit 2: lock NW bit and set WT1 */ setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14 ); } diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c index a2c33c1a46c..43601de0f63 100644 --- a/arch/i386/kernel/cpu/intel.c +++ b/arch/i386/kernel/cpu/intel.c @@ -82,16 +82,13 @@ static void __devinit Intel_errata_workarounds(struct cpuinfo_x86 *c) */ static int __devinit num_cpu_cores(struct cpuinfo_x86 *c) { - unsigned int eax; + unsigned int eax, ebx, ecx, edx; if (c->cpuid_level < 4) return 1; - __asm__("cpuid" - : "=a" (eax) - : "0" (4), "c" (0) - : "bx", "dx"); - + /* Intel has a non-standard dependency on %ecx for this CPUID level. */ + cpuid_count(4, 0, &eax, &ebx, &ecx, &edx); if (eax & 0x1f) return ((eax >> 26) + 1); else diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c index 6c55b50cf04..9e0d5f83cb9 100644 --- a/arch/i386/kernel/cpu/intel_cacheinfo.c +++ b/arch/i386/kernel/cpu/intel_cacheinfo.c @@ -305,6 +305,9 @@ static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index) { struct _cpuid4_info *this_leaf; unsigned long num_threads_sharing; +#ifdef CONFIG_X86_HT + struct cpuinfo_x86 *c = cpu_data + cpu; +#endif this_leaf = CPUID4_INFO_IDX(cpu, index); num_threads_sharing = 1 + this_leaf->eax.split.num_threads_sharing; @@ -314,10 +317,12 @@ static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index) #ifdef CONFIG_X86_HT else if (num_threads_sharing == smp_num_siblings) this_leaf->shared_cpu_map = cpu_sibling_map[cpu]; -#endif + else if (num_threads_sharing == (c->x86_num_cores * smp_num_siblings)) + this_leaf->shared_cpu_map = cpu_core_map[cpu]; else - printk(KERN_INFO "Number of CPUs sharing cache didn't match " + printk(KERN_DEBUG "Number of CPUs sharing cache didn't match " "any known set of CPUs\n"); +#endif } #else static void __init cache_shared_cpu_map_setup(unsigned int cpu, int index) {} diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c index 764cac64e21..dd4ebd6af7e 100644 --- a/arch/i386/kernel/cpu/mtrr/main.c +++ b/arch/i386/kernel/cpu/mtrr/main.c @@ -561,7 +561,7 @@ struct mtrr_value { static struct mtrr_value * mtrr_state; -static int mtrr_save(struct sys_device * sysdev, u32 state) +static int mtrr_save(struct sys_device * sysdev, pm_message_t state) { int i; int size = num_var_ranges * sizeof(struct mtrr_value); diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index e5fab12f792..913be77bb84 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -153,7 +153,7 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu) disable_local_APIC(); atomic_dec(&waiting_for_crash_ipi); /* Assume hlt works */ - __asm__("hlt"); + halt(); for(;;); return 1; diff --git a/arch/i386/kernel/dmi_scan.c b/arch/i386/kernel/dmi_scan.c index a3cdf894302..58516e2ac17 100644 --- a/arch/i386/kernel/dmi_scan.c +++ b/arch/i386/kernel/dmi_scan.c @@ -6,32 +6,28 @@ #include <linux/bootmem.h> -struct dmi_header { - u8 type; - u8 length; - u16 handle; -}; - -#undef DMI_DEBUG - -#ifdef DMI_DEBUG -#define dmi_printk(x) printk x -#else -#define dmi_printk(x) -#endif - static char * __init dmi_string(struct dmi_header *dm, u8 s) { u8 *bp = ((u8 *) dm) + dm->length; + char *str = ""; - if (!s) - return ""; - s--; - while (s > 0 && *bp) { - bp += strlen(bp) + 1; + if (s) { s--; - } - return bp; + while (s > 0 && *bp) { + bp += strlen(bp) + 1; + s--; + } + + if (*bp != 0) { + str = alloc_bootmem(strlen(bp) + 1); + if (str != NULL) + strcpy(str, bp); + else + printk(KERN_ERR "dmi_string: out of memory.\n"); + } + } + + return str; } /* @@ -84,69 +80,76 @@ static int __init dmi_checksum(u8 *buf) return sum == 0; } -static int __init dmi_iterate(void (*decode)(struct dmi_header *)) +static char *dmi_ident[DMI_STRING_MAX]; +static LIST_HEAD(dmi_devices); + +/* + * Save a DMI string + */ +static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string) { - u8 buf[15]; - char __iomem *p, *q; + char *p, *d = (char*) dm; - /* - * no iounmap() for that ioremap(); it would be a no-op, but it's - * so early in setup that sucker gets confused into doing what - * it shouldn't if we actually call it. - */ - p = ioremap(0xF0000, 0x10000); + if (dmi_ident[slot]) + return; + + p = dmi_string(dm, d[string]); if (p == NULL) - return -1; + return; - for (q = p; q < p + 0x10000; q += 16) { - memcpy_fromio(buf, q, 15); - if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) { - u16 num = (buf[13] << 8) | buf[12]; - u16 len = (buf[7] << 8) | buf[6]; - u32 base = (buf[11] << 24) | (buf[10] << 16) | - (buf[9] << 8) | buf[8]; + dmi_ident[slot] = p; +} - /* - * DMI version 0.0 means that the real version is taken from - * the SMBIOS version, which we don't know at this point. - */ - if (buf[14] != 0) - printk(KERN_INFO "DMI %d.%d present.\n", - buf[14] >> 4, buf[14] & 0xF); - else - printk(KERN_INFO "DMI present.\n"); +static void __init dmi_save_devices(struct dmi_header *dm) +{ + int i, count = (dm->length - sizeof(struct dmi_header)) / 2; + struct dmi_device *dev; + + for (i = 0; i < count; i++) { + char *d = ((char *) dm) + (i * 2); - dmi_printk((KERN_INFO "%d structures occupying %d bytes.\n", - num, len)); - dmi_printk((KERN_INFO "DMI table at 0x%08X.\n", base)); + /* Skip disabled device */ + if ((*d & 0x80) == 0) + continue; - if (dmi_table(base,len, num, decode) == 0) - return 0; + dev = alloc_bootmem(sizeof(*dev)); + if (!dev) { + printk(KERN_ERR "dmi_save_devices: out of memory.\n"); + break; } + + dev->type = *d++ & 0x7f; + dev->name = dmi_string(dm, *d); + dev->device_data = NULL; + + list_add(&dev->list, &dmi_devices); } - return -1; } -static char *dmi_ident[DMI_STRING_MAX]; - -/* - * Save a DMI string - */ -static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string) +static void __init dmi_save_ipmi_device(struct dmi_header *dm) { - char *d = (char*)dm; - char *p = dmi_string(dm, d[string]); + struct dmi_device *dev; + void * data; - if (p == NULL || *p == 0) + data = alloc_bootmem(dm->length); + if (data == NULL) { + printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n"); return; - if (dmi_ident[slot]) + } + + memcpy(data, dm, dm->length); + + dev = alloc_bootmem(sizeof(*dev)); + if (!dev) { + printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n"); return; + } - dmi_ident[slot] = alloc_bootmem(strlen(p) + 1); - if(dmi_ident[slot]) - strcpy(dmi_ident[slot], p); - else - printk(KERN_ERR "dmi_save_ident: out of memory.\n"); + dev->type = DMI_DEV_TYPE_IPMI; + dev->name = "IPMI controller"; + dev->device_data = data; + + list_add(&dev->list, &dmi_devices); } /* @@ -156,42 +159,69 @@ static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string) */ static void __init dmi_decode(struct dmi_header *dm) { - u8 *data __attribute__((__unused__)) = (u8 *)dm; - switch(dm->type) { - case 0: - dmi_printk(("BIOS Vendor: %s\n", dmi_string(dm, data[4]))); + case 0: /* BIOS Information */ dmi_save_ident(dm, DMI_BIOS_VENDOR, 4); - dmi_printk(("BIOS Version: %s\n", dmi_string(dm, data[5]))); dmi_save_ident(dm, DMI_BIOS_VERSION, 5); - dmi_printk(("BIOS Release: %s\n", dmi_string(dm, data[8]))); dmi_save_ident(dm, DMI_BIOS_DATE, 8); break; - case 1: - dmi_printk(("System Vendor: %s\n", dmi_string(dm, data[4]))); + case 1: /* System Information */ dmi_save_ident(dm, DMI_SYS_VENDOR, 4); - dmi_printk(("Product Name: %s\n", dmi_string(dm, data[5]))); dmi_save_ident(dm, DMI_PRODUCT_NAME, 5); - dmi_printk(("Version: %s\n", dmi_string(dm, data[6]))); dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6); - dmi_printk(("Serial Number: %s\n", dmi_string(dm, data[7]))); dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7); break; - case 2: - dmi_printk(("Board Vendor: %s\n", dmi_string(dm, data[4]))); + case 2: /* Base Board Information */ dmi_save_ident(dm, DMI_BOARD_VENDOR, 4); - dmi_printk(("Board Name: %s\n", dmi_string(dm, data[5]))); dmi_save_ident(dm, DMI_BOARD_NAME, 5); - dmi_printk(("Board Version: %s\n", dmi_string(dm, data[6]))); dmi_save_ident(dm, DMI_BOARD_VERSION, 6); break; + case 10: /* Onboard Devices Information */ + dmi_save_devices(dm); + break; + case 38: /* IPMI Device Information */ + dmi_save_ipmi_device(dm); } } void __init dmi_scan_machine(void) { - if (dmi_iterate(dmi_decode)) - printk(KERN_INFO "DMI not present.\n"); + u8 buf[15]; + char __iomem *p, *q; + + /* + * no iounmap() for that ioremap(); it would be a no-op, but it's + * so early in setup that sucker gets confused into doing what + * it shouldn't if we actually call it. + */ + p = ioremap(0xF0000, 0x10000); + if (p == NULL) + goto out; + + for (q = p; q < p + 0x10000; q += 16) { + memcpy_fromio(buf, q, 15); + if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) { + u16 num = (buf[13] << 8) | buf[12]; + u16 len = (buf[7] << 8) | buf[6]; + u32 base = (buf[11] << 24) | (buf[10] << 16) | + (buf[9] << 8) | buf[8]; + + /* + * DMI version 0.0 means that the real version is taken from + * the SMBIOS version, which we don't know at this point. + */ + if (buf[14] != 0) + printk(KERN_INFO "DMI %d.%d present.\n", + buf[14] >> 4, buf[14] & 0xF); + else + printk(KERN_INFO "DMI present.\n"); + + if (dmi_table(base,len, num, dmi_decode) == 0) + return; + } + } + +out: printk(KERN_INFO "DMI not present.\n"); } @@ -218,9 +248,9 @@ int dmi_check_system(struct dmi_system_id *list) /* No match */ goto fail; } + count++; if (d->callback && d->callback(d)) break; - count++; fail: d++; } @@ -240,3 +270,32 @@ char *dmi_get_system_info(int field) return dmi_ident[field]; } EXPORT_SYMBOL(dmi_get_system_info); + +/** + * dmi_find_device - find onboard device by type/name + * @type: device type or %DMI_DEV_TYPE_ANY to match all device types + * @desc: device name string or %NULL to match all + * @from: previous device found in search, or %NULL for new search. + * + * Iterates through the list of known onboard devices. If a device is + * found with a matching @vendor and @device, a pointer to its device + * structure is returned. Otherwise, %NULL is returned. + * A new search is initiated by passing %NULL to the @from argument. + * If @from is not %NULL, searches continue from next device. + */ +struct dmi_device * dmi_find_device(int type, const char *name, + struct dmi_device *from) +{ + struct list_head *d, *head = from ? &from->list : &dmi_devices; + + for(d = head->next; d != &dmi_devices; d = d->next) { + struct dmi_device *dev = list_entry(d, struct dmi_device, list); + + if (((type == DMI_DEV_TYPE_ANY) || (dev->type == type)) && + ((name == NULL) || (strcmp(dev->name, name) == 0))) + return dev; + } + + return NULL; +} +EXPORT_SYMBOL(dmi_find_device); diff --git a/arch/i386/kernel/doublefault.c b/arch/i386/kernel/doublefault.c index 789af3e9fb1..5edb1d379ad 100644 --- a/arch/i386/kernel/doublefault.c +++ b/arch/i386/kernel/doublefault.c @@ -20,7 +20,7 @@ static void doublefault_fn(void) struct Xgt_desc_struct gdt_desc = {0, 0}; unsigned long gdt, tss; - __asm__ __volatile__("sgdt %0": "=m" (gdt_desc): :"memory"); + store_gdt(&gdt_desc); gdt = gdt_desc.address; printk("double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c index 385883ea8c1..ecad519fd39 100644 --- a/arch/i386/kernel/efi.c +++ b/arch/i386/kernel/efi.c @@ -79,7 +79,7 @@ static void efi_call_phys_prelog(void) * directory. If I have PSE, I just need to duplicate one entry in * page directory. */ - __asm__ __volatile__("movl %%cr4, %0":"=r"(cr4)); + cr4 = read_cr4(); if (cr4 & X86_CR4_PSE) { efi_bak_pg_dir_pointer[0].pgd = @@ -104,8 +104,7 @@ static void efi_call_phys_prelog(void) local_flush_tlb(); cpu_gdt_descr[0].address = __pa(cpu_gdt_descr[0].address); - __asm__ __volatile__("lgdt %0":"=m" - (*(struct Xgt_desc_struct *) __pa(&cpu_gdt_descr[0]))); + |