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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:58 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:58 +0200
commitf7627e2513987bb5d4e8cb13c4e0a478352141ac (patch)
tree46ef70a107285c1dfe8161a57f433d30252d285a /arch/i386
parent4ac24f63fd203bc12a841a88a2034dccd358d0d1 (diff)
i386: move kernel/cpu
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/Makefile_322
-rw-r--r--arch/i386/kernel/cpu/Makefile20
-rw-r--r--arch/i386/kernel/cpu/addon_cpuid_features.c50
-rw-r--r--arch/i386/kernel/cpu/amd.c337
-rw-r--r--arch/i386/kernel/cpu/bugs.c192
-rw-r--r--arch/i386/kernel/cpu/centaur.c471
-rw-r--r--arch/i386/kernel/cpu/common.c733
-rw-r--r--arch/i386/kernel/cpu/cpu.h28
-rw-r--r--arch/i386/kernel/cpu/cyrix.c463
-rw-r--r--arch/i386/kernel/cpu/intel.c333
-rw-r--r--arch/i386/kernel/cpu/intel_cacheinfo.c806
-rw-r--r--arch/i386/kernel/cpu/nexgen.c60
-rw-r--r--arch/i386/kernel/cpu/perfctr-watchdog.c713
-rw-r--r--arch/i386/kernel/cpu/proc.c192
-rw-r--r--arch/i386/kernel/cpu/transmeta.c116
-rw-r--r--arch/i386/kernel/cpu/umc.c26
16 files changed, 1 insertions, 4541 deletions
diff --git a/arch/i386/kernel/Makefile_32 b/arch/i386/kernel/Makefile_32
index af8304b921d..5096f486d38 100644
--- a/arch/i386/kernel/Makefile_32
+++ b/arch/i386/kernel/Makefile_32
@@ -10,7 +10,7 @@ obj-y := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
quirks.o i8237.o topology.o alternative.o i8253_32.o tsc_32.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
-obj-y += cpu/
+obj-y += ../../x86/kernel/cpu/
obj-y += ../../x86/kernel/acpi/
obj-$(CONFIG_X86_BIOS_REBOOT) += reboot_32.o
obj-$(CONFIG_MCA) += mca_32.o
diff --git a/arch/i386/kernel/cpu/Makefile b/arch/i386/kernel/cpu/Makefile
deleted file mode 100644
index 6687f6d5ad2..00000000000
--- a/arch/i386/kernel/cpu/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# Makefile for x86-compatible CPU details and quirks
-#
-
-obj-y := common.o proc.o bugs.o
-
-obj-y += amd.o
-obj-y += cyrix.o
-obj-y += centaur.o
-obj-y += transmeta.o
-obj-y += intel.o intel_cacheinfo.o addon_cpuid_features.o
-obj-y += nexgen.o
-obj-y += umc.o
-
-obj-$(CONFIG_X86_MCE) += ../../../x86/kernel/cpu/mcheck/
-
-obj-$(CONFIG_MTRR) += ../../../x86/kernel/cpu/mtrr/
-obj-$(CONFIG_CPU_FREQ) += ../../../x86/kernel/cpu/cpufreq/
-
-obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o
diff --git a/arch/i386/kernel/cpu/addon_cpuid_features.c b/arch/i386/kernel/cpu/addon_cpuid_features.c
deleted file mode 100644
index 3e91d3ee26e..00000000000
--- a/arch/i386/kernel/cpu/addon_cpuid_features.c
+++ /dev/null
@@ -1,50 +0,0 @@
-
-/*
- * Routines to indentify additional cpu features that are scattered in
- * cpuid space.
- */
-
-#include <linux/cpu.h>
-
-#include <asm/processor.h>
-
-struct cpuid_bit {
- u16 feature;
- u8 reg;
- u8 bit;
- u32 level;
-};
-
-enum cpuid_regs {
- CR_EAX = 0,
- CR_ECX,
- CR_EDX,
- CR_EBX
-};
-
-void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
-{
- u32 max_level;
- u32 regs[4];
- const struct cpuid_bit *cb;
-
- static const struct cpuid_bit cpuid_bits[] = {
- { X86_FEATURE_IDA, CR_EAX, 1, 0x00000006 },
- { 0, 0, 0, 0 }
- };
-
- for (cb = cpuid_bits; cb->feature; cb++) {
-
- /* Verify that the level is valid */
- max_level = cpuid_eax(cb->level & 0xffff0000);
- if (max_level < cb->level ||
- max_level > (cb->level | 0xffff))
- continue;
-
- cpuid(cb->level, &regs[CR_EAX], &regs[CR_EBX],
- &regs[CR_ECX], &regs[CR_EDX]);
-
- if (regs[cb->reg] & (1 << cb->bit))
- set_bit(cb->feature, c->x86_capability);
- }
-}
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
deleted file mode 100644
index dcf6bbb1c7c..00000000000
--- a/arch/i386/kernel/cpu/amd.c
+++ /dev/null
@@ -1,337 +0,0 @@
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/mm.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/apic.h>
-
-#include "cpu.h"
-
-/*
- * B step AMD K6 before B 9730xxxx have hardware bugs that can cause
- * misexecution of code under Linux. Owners of such processors should
- * contact AMD for precise details and a CPU swap.
- *
- * See http://www.multimania.com/poulot/k6bug.html
- * http://www.amd.com/K6/k6docs/revgd.html
- *
- * The following test is erm.. interesting. AMD neglected to up
- * the chip setting when fixing the bug but they also tweaked some
- * performance at the same time..
- */
-
-extern void vide(void);
-__asm__(".align 4\nvide: ret");
-
-#ifdef CONFIG_X86_LOCAL_APIC
-#define ENABLE_C1E_MASK 0x18000000
-#define CPUID_PROCESSOR_SIGNATURE 1
-#define CPUID_XFAM 0x0ff00000
-#define CPUID_XFAM_K8 0x00000000
-#define CPUID_XFAM_10H 0x00100000
-#define CPUID_XFAM_11H 0x00200000
-#define CPUID_XMOD 0x000f0000
-#define CPUID_XMOD_REV_F 0x00040000
-
-/* AMD systems with C1E don't have a working lAPIC timer. Check for that. */
-static __cpuinit int amd_apic_timer_broken(void)
-{
- u32 lo, hi;
- u32 eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
- switch (eax & CPUID_XFAM) {
- case CPUID_XFAM_K8:
- if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F)
- break;
- case CPUID_XFAM_10H:
- case CPUID_XFAM_11H:
- rdmsr(MSR_K8_ENABLE_C1E, lo, hi);
- if (lo & ENABLE_C1E_MASK)
- return 1;
- break;
- default:
- /* err on the side of caution */
- return 1;
- }
- return 0;
-}
-#endif
-
-int force_mwait __cpuinitdata;
-
-static void __cpuinit init_amd(struct cpuinfo_x86 *c)
-{
- u32 l, h;
- int mbytes = num_physpages >> (20-PAGE_SHIFT);
- int r;
-
-#ifdef CONFIG_SMP
- unsigned long long value;
-
- /* Disable TLB flush filter by setting HWCR.FFDIS on K8
- * bit 6 of msr C001_0015
- *
- * Errata 63 for SH-B3 steppings
- * Errata 122 for all steppings (F+ have it disabled by default)
- */
- if (c->x86 == 15) {
- rdmsrl(MSR_K7_HWCR, value);
- value |= 1 << 6;
- wrmsrl(MSR_K7_HWCR, value);
- }
-#endif
-
- /*
- * FIXME: We should handle the K5 here. Set up the write
- * range and also turn on MSR 83 bits 4 and 31 (write alloc,
- * no bus pipeline)
- */
-
- /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
- 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
- clear_bit(0*32+31, c->x86_capability);
-
- r = get_model_name(c);
-
- switch(c->x86)
- {
- case 4:
- /*
- * General Systems BIOSen alias the cpu frequency registers
- * of the Elan at 0x000df000. Unfortuantly, one of the Linux
- * drivers subsequently pokes it, and changes the CPU speed.
- * Workaround : Remove the unneeded alias.
- */
-#define CBAR (0xfffc) /* Configuration Base Address (32-bit) */
-#define CBAR_ENB (0x80000000)
-#define CBAR_KEY (0X000000CB)
- if (c->x86_model==9 || c->x86_model == 10) {
- if (inl (CBAR) & CBAR_ENB)
- outl (0 | CBAR_KEY, CBAR);
- }
- break;
- case 5:
- if( c->x86_model < 6 )
- {
- /* Based on AMD doc 20734R - June 2000 */
- if ( c->x86_model == 0 ) {
- clear_bit(X86_FEATURE_APIC, c->x86_capability);
- set_bit(X86_FEATURE_PGE, c->x86_capability);
- }
- break;
- }
-
- if ( c->x86_model == 6 && c->x86_mask == 1 ) {
- const int K6_BUG_LOOP = 1000000;
- int n;
- void (*f_vide)(void);
- unsigned long d, d2;
-
- printk(KERN_INFO "AMD K6 stepping B detected - ");
-
- /*
- * It looks like AMD fixed the 2.6.2 bug and improved indirect
- * calls at the same time.
- */
-
- n = K6_BUG_LOOP;
- f_vide = vide;
- rdtscl(d);
- while (n--)
- f_vide();
- rdtscl(d2);
- d = d2-d;
-
- if (d > 20*K6_BUG_LOOP)
- printk("system stability may be impaired when more than 32 MB are used.\n");
- else
- printk("probably OK (after B9730xxxx).\n");
- printk(KERN_INFO "Please see http://membres.lycos.fr/poulot/k6bug.html\n");
- }
-
- /* K6 with old style WHCR */
- if (c->x86_model < 8 ||
- (c->x86_model== 8 && c->x86_mask < 8)) {
- /* We can only write allocate on the low 508Mb */
- if(mbytes>508)
- mbytes=508;
-
- rdmsr(MSR_K6_WHCR, l, h);
- if ((l&0x0000FFFF)==0) {
- unsigned long flags;
- l=(1<<0)|((mbytes/4)<<1);
- local_irq_save(flags);
- wbinvd();
- wrmsr(MSR_K6_WHCR, l, h);
- local_irq_restore(flags);
- printk(KERN_INFO "Enabling old style K6 write allocation for %d Mb\n",
- mbytes);
- }
- break;
- }
-
- if ((c->x86_model == 8 && c->x86_mask >7) ||
- c->x86_model == 9 || c->x86_model == 13) {
- /* The more serious chips .. */
-
- if(mbytes>4092)
- mbytes=4092;
-
- rdmsr(MSR_K6_WHCR, l, h);
- if ((l&0xFFFF0000)==0) {
- unsigned long flags;
- l=((mbytes>>2)<<22)|(1<<16);
- local_irq_save(flags);
- wbinvd();
- wrmsr(MSR_K6_WHCR, l, h);
- local_irq_restore(flags);
- printk(KERN_INFO "Enabling new style K6 write allocation for %d Mb\n",
- mbytes);
- }
-
- /* Set MTRR capability flag if appropriate */
- if (c->x86_model == 13 || c->x86_model == 9 ||
- (c->x86_model == 8 && c->x86_mask >= 8))
- set_bit(X86_FEATURE_K6_MTRR, c->x86_capability);
- break;
- }
-
- if (c->x86_model == 10) {
- /* AMD Geode LX is model 10 */
- /* placeholder for any needed mods */
- break;
- }
- break;
- case 6: /* An Athlon/Duron */
-
- /* Bit 15 of Athlon specific MSR 15, needs to be 0
- * to enable SSE on Palomino/Morgan/Barton CPU's.
- * If the BIOS didn't enable it already, enable it here.
- */
- if (c->x86_model >= 6 && c->x86_model <= 10) {
- if (!cpu_has(c, X86_FEATURE_XMM)) {
- printk(KERN_INFO "Enabling disabled K7/SSE Support.\n");
- rdmsr(MSR_K7_HWCR, l, h);
- l &= ~0x00008000;
- wrmsr(MSR_K7_HWCR, l, h);
- set_bit(X86_FEATURE_XMM, c->x86_capability);
- }
- }
-
- /* It's been determined by AMD that Athlons since model 8 stepping 1
- * are more robust with CLK_CTL set to 200xxxxx instead of 600xxxxx
- * As per AMD technical note 27212 0.2
- */
- if ((c->x86_model == 8 && c->x86_mask>=1) || (c->x86_model > 8)) {
- rdmsr(MSR_K7_CLK_CTL, l, h);
- if ((l & 0xfff00000) != 0x20000000) {
- printk ("CPU: CLK_CTL MSR was %x. Reprogramming to %x\n", l,
- ((l & 0x000fffff)|0x20000000));
- wrmsr(MSR_K7_CLK_CTL, (l & 0x000fffff)|0x20000000, h);
- }
- }
- break;
- }
-
- switch (c->x86) {
- case 15:
- /* Use K8 tuning for Fam10h and Fam11h */
- case 0x10:
- case 0x11:
- set_bit(X86_FEATURE_K8, c->x86_capability);
- break;
- case 6:
- set_bit(X86_FEATURE_K7, c->x86_capability);
- break;
- }
- if (c->x86 >= 6)
- set_bit(X86_FEATURE_FXSAVE_LEAK, c->x86_capability);
-
- display_cacheinfo(c);
-
- if (cpuid_eax(0x80000000) >= 0x80000008) {
- c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
- }
-
- if (cpuid_eax(0x80000000) >= 0x80000007) {
- c->x86_power = cpuid_edx(0x80000007);
- if (c->x86_power & (1<<8))
- set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
- }
-
-#ifdef CONFIG_X86_HT
- /*
- * On a AMD multi core setup the lower bits of the APIC id
- * distingush the cores.
- */
- if (c->x86_max_cores > 1) {
- int cpu = smp_processor_id();
- unsigned bits = (cpuid_ecx(0x80000008) >> 12) & 0xf;
-
- if (bits == 0) {
- while ((1 << bits) < c->x86_max_cores)
- bits++;
- }
- c->cpu_core_id = c->phys_proc_id & ((1<<bits)-1);
- c->phys_proc_id >>= bits;
- printk(KERN_INFO "CPU %d(%d) -> Core %d\n",
- cpu, c->x86_max_cores, c->cpu_core_id);
- }
-#endif
-
- if (cpuid_eax(0x80000000) >= 0x80000006) {
- if ((c->x86 == 0x10) && (cpuid_edx(0x80000006) & 0xf000))
- num_cache_leaves = 4;
- else
- num_cache_leaves = 3;
- }
-
-#ifdef CONFIG_X86_LOCAL_APIC
- if (amd_apic_timer_broken())
- local_apic_timer_disabled = 1;
-#endif
-
- if (c->x86 == 0x10 && !force_mwait)
- clear_bit(X86_FEATURE_MWAIT, c->x86_capability);
-
- /* K6s reports MCEs but don't actually have all the MSRs */
- if (c->x86 < 6)
- clear_bit(X86_FEATURE_MCE, c->x86_capability);
-}
-
-static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
-{
- /* AMD errata T13 (order #21922) */
- if ((c->x86 == 6)) {
- if (c->x86_model == 3 && c->x86_mask == 0) /* Duron Rev A0 */
- size = 64;
- if (c->x86_model == 4 &&
- (c->x86_mask==0 || c->x86_mask==1)) /* Tbird rev A1/A2 */
- size = 256;
- }
- return size;
-}
-
-static struct cpu_dev amd_cpu_dev __cpuinitdata = {
- .c_vendor = "AMD",
- .c_ident = { "AuthenticAMD" },
- .c_models = {
- { .vendor = X86_VENDOR_AMD, .family = 4, .model_names =
- {
- [3] = "486 DX/2",
- [7] = "486 DX/2-WB",
- [8] = "486 DX/4",
- [9] = "486 DX/4-WB",
- [14] = "Am5x86-WT",
- [15] = "Am5x86-WB"
- }
- },
- },
- .c_init = init_amd,
- .c_size_cache = amd_size_cache,
-};
-
-int __init amd_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_AMD] = &amd_cpu_dev;
- return 0;
-}
diff --git a/arch/i386/kernel/cpu/bugs.c b/arch/i386/kernel/cpu/bugs.c
deleted file mode 100644
index 59266f03d1c..00000000000
--- a/arch/i386/kernel/cpu/bugs.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * arch/i386/cpu/bugs.c
- *
- * Copyright (C) 1994 Linus Torvalds
- *
- * Cyrix stuff, June 1998 by:
- * - Rafael R. Reilova (moved everything from head.S),
- * <rreilova@ececs.uc.edu>
- * - Channing Corn (tests & fixes),
- * - Andrew D. Balsa (code cleanup).
- */
-#include <linux/init.h>
-#include <linux/utsname.h>
-#include <asm/bugs.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/msr.h>
-#include <asm/paravirt.h>
-#include <asm/alternative.h>
-
-static int __init no_halt(char *s)
-{
- boot_cpu_data.hlt_works_ok = 0;
- return 1;
-}
-
-__setup("no-hlt", no_halt);
-
-static int __init mca_pentium(char *s)
-{
- mca_pentium_flag = 1;
- return 1;
-}
-
-__setup("mca-pentium", mca_pentium);
-
-static int __init no_387(char *s)
-{
- boot_cpu_data.hard_math = 0;
- write_cr0(0xE | read_cr0());
- return 1;
-}
-
-__setup("no387", no_387);
-
-static double __initdata x = 4195835.0;
-static double __initdata y = 3145727.0;
-
-/*
- * This used to check for exceptions..
- * However, it turns out that to support that,
- * the XMM trap handlers basically had to
- * be buggy. So let's have a correct XMM trap
- * handler, and forget about printing out
- * some status at boot.
- *
- * We should really only care about bugs here
- * anyway. Not features.
- */
-static void __init check_fpu(void)
-{
- if (!boot_cpu_data.hard_math) {
-#ifndef CONFIG_MATH_EMULATION
- printk(KERN_EMERG "No coprocessor found and no math emulation present.\n");
- printk(KERN_EMERG "Giving up.\n");
- for (;;) ;
-#endif
- return;
- }
-
-/* trap_init() enabled FXSR and company _before_ testing for FP problems here. */
- /* Test for the divl bug.. */
- __asm__("fninit\n\t"
- "fldl %1\n\t"
- "fdivl %2\n\t"
- "fmull %2\n\t"
- "fldl %1\n\t"
- "fsubp %%st,%%st(1)\n\t"
- "fistpl %0\n\t"
- "fwait\n\t"
- "fninit"
- : "=m" (*&boot_cpu_data.fdiv_bug)
- : "m" (*&x), "m" (*&y));
- if (boot_cpu_data.fdiv_bug)
- printk("Hmm, FPU with FDIV bug.\n");
-}
-
-static void __init check_hlt(void)
-{
- if (paravirt_enabled())
- return;
-
- printk(KERN_INFO "Checking 'hlt' instruction... ");
- if (!boot_cpu_data.hlt_works_ok) {
- printk("disabled\n");
- return;
- }
- halt();
- halt();
- halt();
- halt();
- printk("OK.\n");
-}
-
-/*
- * Most 386 processors have a bug where a POPAD can lock the
- * machine even from user space.
- */
-
-static void __init check_popad(void)
-{
-#ifndef CONFIG_X86_POPAD_OK
- int res, inp = (int) &res;
-
- printk(KERN_INFO "Checking for popad bug... ");
- __asm__ __volatile__(
- "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
- : "=&a" (res)
- : "d" (inp)
- : "ecx", "edi" );
- /* If this fails, it means that any user program may lock the CPU hard. Too bad. */
- if (res != 12345678) printk( "Buggy.\n" );
- else printk( "OK.\n" );
-#endif
-}
-
-/*
- * Check whether we are able to run this kernel safely on SMP.
- *
- * - In order to run on a i386, we need to be compiled for i386
- * (for due to lack of "invlpg" and working WP on a i386)
- * - In order to run on anything without a TSC, we need to be
- * compiled for a i486.
- * - In order to support the local APIC on a buggy Pentium machine,
- * we need to be compiled with CONFIG_X86_GOOD_APIC disabled,
- * which happens implicitly if compiled for a Pentium or lower
- * (unless an advanced selection of CPU features is used) as an
- * otherwise config implies a properly working local APIC without
- * the need to do extra reads from the APIC.
-*/
-
-static void __init check_config(void)
-{
-/*
- * We'd better not be a i386 if we're configured to use some
- * i486+ only features! (WP works in supervisor mode and the
- * new "invlpg" and "bswap" instructions)
- */
-#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_BSWAP)
- if (boot_cpu_data.x86 == 3)
- panic("Kernel requires i486+ for 'invlpg' and other features");
-#endif
-
-/*
- * If we configured ourselves for a TSC, we'd better have one!
- */
-#ifdef CONFIG_X86_TSC
- if (!cpu_has_tsc && !tsc_disable)
- panic("Kernel compiled for Pentium+, requires TSC feature!");
-#endif
-
-/*
- * If we were told we had a good local APIC, check for buggy Pentia,
- * i.e. all B steppings and the C2 stepping of P54C when using their
- * integrated APIC (see 11AP erratum in "Pentium Processor
- * Specification Update").
- */
-#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_GOOD_APIC)
- if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL
- && cpu_has_apic
- && boot_cpu_data.x86 == 5
- && boot_cpu_data.x86_model == 2
- && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11))
- panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!");
-#endif
-}
-
-
-void __init check_bugs(void)
-{
- identify_boot_cpu();
-#ifndef CONFIG_SMP
- printk("CPU: ");
- print_cpu_info(&boot_cpu_data);
-#endif
- check_config();
- check_fpu();
- check_hlt();
- check_popad();
- init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
- alternative_instructions();
-}
diff --git a/arch/i386/kernel/cpu/centaur.c b/arch/i386/kernel/cpu/centaur.c
deleted file mode 100644
index 473eac883c7..00000000000
--- a/arch/i386/kernel/cpu/centaur.c
+++ /dev/null
@@ -1,471 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <asm/processor.h>
-#include <asm/msr.h>
-#include <asm/e820.h>
-#include <asm/mtrr.h>
-#include "cpu.h"
-
-#ifdef CONFIG_X86_OOSTORE
-
-static u32 __cpuinit power2(u32 x)
-{
- u32 s=1;
- while(s<=x)
- s<<=1;
- return s>>=1;
-}
-
-
-/*
- * Set up an actual MCR
- */
-
-static void __cpuinit centaur_mcr_insert(int reg, u32 base, u32 size, int key)
-{
- u32 lo, hi;
-
- hi = base & ~0xFFF;
- lo = ~(size-1); /* Size is a power of 2 so this makes a mask */
- lo &= ~0xFFF; /* Remove the ctrl value bits */
- lo |= key; /* Attribute we wish to set */
- wrmsr(reg+MSR_IDT_MCR0, lo, hi);
- mtrr_centaur_report_mcr(reg, lo, hi); /* Tell the mtrr driver */
-}
-
-/*
- * Figure what we can cover with MCR's
- *
- * Shortcut: We know you can't put 4Gig of RAM on a winchip
- */
-
-static u32 __cpuinit ramtop(void) /* 16388 */
-{
- int i;
- u32 top = 0;
- u32 clip = 0xFFFFFFFFUL;
-
- for (i = 0; i < e820.nr_map; i++) {
- unsigned long start, end;
-
- if (e820.map[i].addr > 0xFFFFFFFFUL)
- continue;
- /*
- * Don't MCR over reserved space. Ignore the ISA hole
- * we frob around that catastrophy already
- */
-
- if (e820.map[i].type == E820_RESERVED)
- {
- if(e820.map[i].addr >= 0x100000UL && e820.map[i].addr < clip)
- clip = e820.map[i].addr;
- continue;
- }
- start = e820.map[i].addr;
- end = e820.map[i].addr + e820.map[i].size;
- if (start >= end)
- continue;
- if (end > top)
- top = end;
- }
- /* Everything below 'top' should be RAM except for the ISA hole.
- Because of the limited MCR's we want to map NV/ACPI into our
- MCR range for gunk in RAM
-
- Clip might cause us to MCR insufficient RAM but that is an
- acceptable failure mode and should only bite obscure boxes with
- a VESA hole at 15Mb
-
- The second case Clip sometimes kicks in is when the EBDA is marked
- as reserved. Again we fail safe with reasonable results
- */
-
- if(top>clip)
- top=clip;
-
- return top;
-}
-
-/*
- * Compute a set of MCR's to give maximum coverage
- */
-
-static int __cpuinit centaur_mcr_compute(int nr, int key)
-{
- u32 mem = ramtop();
- u32 root = power2(mem);
- u32 base = root;
- u32 top = root;
- u32 floor = 0;
- int ct = 0;
-
- while(ct<nr)
- {
- u32 fspace = 0;
-
- /*
- * Find the largest block we will fill going upwards
- */
-
- u32 high = power2(mem-top);
-
- /*
- * Find the largest block we will fill going downwards
- */
-
- u32 low = base/2;
-
- /*
- * Don't fill below 1Mb going downwards as there
- * is an ISA hole in the way.
- */
-
- if(base <= 1024*1024)
- low = 0;
-
- /*
- * See how much space we could cover by filling below
- * the ISA hole
- */
-
- if(floor == 0)
- fspace = 512*1024;
- else if(floor ==512*1024)
- fspace = 128*1024;
-
- /* And forget ROM space */
-
- /*
- * Now install the largest coverage we get
- */
-
- if(fspace > high && fspace > low)
- {
- centaur_mcr_insert(ct, floor, fspace, key);
- floor += fspace;
- }
- else if(high > low)
- {
- centaur_mcr_insert(ct, top, high, key);
- top += high;
- }
- else if(low > 0)
- {
- base -= low;
- centaur_mcr_insert(ct, base, low, key);
- }
- else break;
- ct++;
- }
- /*
- * We loaded ct values. We now need to set the mask. The caller
- * must do this bit.
- */
-
- return ct;
-}
-
-static void __cpuinit centaur_create_optimal_mcr(void)
-{
- int i;
- /*
- * Allocate up to 6 mcrs to mark as much of ram as possible
- * as write combining and weak write ordered.
- *
- * To experiment with: Linux never uses stack operations for
- * mmio spaces so we could globally enable stack operation wc
- *
- * Load the registers with type 31 - full write combining, all
- * writes weakly ordered.
- */
- int used = centaur_mcr_compute(6, 31);
-
- /*
- * Wipe unused MCRs
- */
-
- for(i=used;i<8;i++)
- wrmsr(MSR_IDT_MCR0+i, 0, 0);
-}
-
-static void __cpuinit winchip2_create_optimal_mcr(void)
-{
- u32 lo, hi;
- int i;
-
- /*
- * Allocate up to 6 mcrs to mark as much of ram as possible
- * as write combining, weak store ordered.
- *
- * Load the registers with type 25
- * 8 - weak write ordering
- * 16 - weak read ordering
- * 1 - write combining
- */
-
- int used = centaur_mcr_compute(6, 25);
-
- /*
- * Mark the registers we are using.
- */
-
- rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
- for(i=0;i<used;i++)
- lo|=1<<(9+i);
- wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
-
- /*
- * Wipe unused MCRs
- */
-
- for(i=used;i<8;i++)
- wrmsr(MSR_IDT_MCR0+i, 0, 0);
-}
-
-/*
- * Handle the MCR key on the Winchip 2.
- */
-
-static void __cpuinit winchip2_unprotect_mcr(void)
-{
- u32 lo, hi;
- u32 key;
-
- rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
- lo&=~0x1C0; /* blank bits 8-6 */
- key = (lo>>17) & 7;
- lo |= key<<6; /* replace with unlock key */
- wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
-}
-
-static void __cpuinit winchip2_protect_mcr(void)
-{
- u32 lo, hi;
-
- rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
- lo&=~0x1C0; /* blank bits 8-6 */
- wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
-}
-#endif /* CONFIG_X86_OOSTORE */
-
-#define ACE_PRESENT (1 << 6)
-#define ACE_ENABLED (1 << 7)
-#define ACE_FCR (1 << 28) /* MSR_VIA_FCR */
-
-#define RNG_PRESENT (1 << 2)
-#define RNG_ENABLED (1 << 3)
-#define RNG_ENABLE (1 << 6) /* MSR_VIA_RNG */
-
-static void __cpuinit init_c3(struct cpuinfo_x86 *c)
-{
- u32 lo, hi;
-
- /* Test for Centaur Extended Feature Flags presence */
- if (cpuid_eax(0xC0000000) >= 0xC0000001) {
- u32 tmp = cpuid_edx(0xC0000001);
-
- /* enable ACE unit, if present and disabled */
- if ((tmp & (ACE_PRESENT | ACE_ENABLED)) == ACE_PRESENT) {
- rdmsr (MSR_VIA_FCR, lo, hi);
- lo |= ACE_FCR; /* enable ACE unit */
- wrmsr (MSR_VIA_FCR, lo, hi);
- printk(KERN_INFO "CPU: Enabled ACE h/w crypto\n");
- }
-
- /* enable RNG unit, if present and disabled */
- if ((tmp & (RNG_PRESENT | RNG_ENABLED)) == RNG_PRESENT) {
- rdmsr (MSR_VIA_RNG, lo, hi);
- lo |= RNG_ENABLE; /* enable RNG unit */
- wrmsr (MSR_VIA_RNG, lo, hi);
- printk(KERN_INFO "CPU: Enabled h/w RNG\n");
- }
-
- /* store Centaur Extended Feature Flags as
- * word 5 of the CPU capability bit array
- */
- c->x86_capability[5] = cpuid_edx(0xC0000001);
- }
-
- /* Cyrix III family needs CX8 & PGE explicity enabled. */
- if (c->x86_model >=6 && c->x86_model <= 9) {
- rdmsr (MSR_VIA_FCR, lo, hi);
- lo |= (1<<1 | 1<<7);
- wrmsr (MSR_VIA_FCR, lo, hi);
- set_bit(X86_FEATURE_CX8, c->x86_capability);
- }
-
- /* Before Nehemiah, the C3's had 3dNOW! */
- if (c->x86_model >=6 && c->x86_model <9)
- set_bit(X86_FEATURE_3DNOW, c->x86_capability);
-
- get_model_name(c);
- display_cacheinfo(c);
-}
-
-static void __cpuinit init_centaur(struct cpuinfo_x86 *c)
-{
- enum {
- ECX8=1<<1,
- EIERRINT=1<<2,
- DPM=1<<3,
- DMCE=1<<4,
- DSTPCLK=1<<5,
- ELINEAR=1<<6,
- DSMC=1<<7,
- DTLOCK=1<<8,
- EDCTLB=1<<8,
- EMMX=1<<9,
- DPDC=1<<11,
- EBRPRED=1<<12,
- DIC=1<<13,
- DDC=1<<14,
- DNA=1<<15,
- ERETSTK=1<<16,
- E2MMX=1<<19,
- EAMD3D=1<<20,
- };
-
- char *name;
- u32 fcr_set=0;
- u32 fcr_clr=0;
- u32 lo,hi,newlo;
- u32 aa,bb,cc,dd;
-
- /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
- 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
- clear_bit(0*32+31, c->x86_capability);
-
- switch (c->x86) {
-
- case 5:
- switch(c->x86_model) {
- case 4:
- name="C6";
- fcr_set=ECX8|DSMC|EDCTLB|EMMX|ERETSTK;
- fcr_clr=DPDC;
- printk(KERN_NOTICE "Disabling bugged TSC.\n");
- clear_bit(X86_FEATURE_TSC, c->x86_capability);
-#ifdef CONFIG_X86_OOSTORE
- centaur_create_optimal_mcr();
- /* Enable
- write combining on non-stack, non-string
- write combining on string, all types
- weak write ordering
-
- The C6 original lacks weak read order
-
- Note 0x120 is write only on Winchip 1 */
-
- wrmsr(MSR_IDT_MCR_CTRL, 0x01F0001F, 0);
-#endif
- break;
- case 8:
- switch(c->x86_mask) {
- default:
- name="2";
- break;
- case 7 ... 9:
- name="2A";
- break;
- case 10 ... 15:
- name="2B";
- break;
- }
- fcr_set=ECX8|DSMC|DTLOCK|EMMX|EBRPRED|ERETSTK|E2MMX|EAMD3D;
- fcr_clr=DPDC;
-#ifdef CONFIG_X86_OOSTORE
- winchip2_unprotect_mcr();
- winchip2_create_optimal_mcr();
- rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
- /* Enable
- write combining on non-stack, non-string
- write combining on string, all types
- weak write ordering
- */
- lo|=31;
- wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
- winchip2_protect_mcr();
-#endif
- break;
- case 9:
- name="3";
- fcr_set=ECX8|DSMC|DTLOCK|EMMX|EBRPRED|ERETSTK|E2MMX|EAMD3D;
- fcr_clr=DPDC;
-#ifdef CONFIG_X86_OOSTORE
- winchip2_unprotect_mcr();
- winchip2_create_optimal_mcr();
- rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
- /* Enable
- write combining on non-stack, non-string
- write combining on string, all types
- weak write ordering
- */
- lo|=31;
- wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
- winchip2_protect_mcr();
-#endif
- break;
- default:
- name="??";
- }
-
- rdmsr(MSR_IDT_FCR1, lo, hi);
- newlo=(lo|fcr_set) & (~fcr_clr);
-
- if (newlo!=lo) {
- printk(KERN_INFO "Centaur FCR was 0x%X now 0x%X\n", lo, newlo );
- wrmsr(MSR_IDT_FCR1, newlo, hi );
- } else {
- printk(KERN_INFO "Centaur FCR is 0x%X\n",lo);
- }
- /* Emulate MTRRs using Centaur's MCR. */
- set_bit(X86_FEATURE_CENTAUR_MCR, c->x86_capability);
- /* Report CX8 */
- set_bit(X86_FEATURE_CX8, c->x86_capability);
- /* Set 3DNow! on Winchip 2 and above. */
- if (c->x86_model >=8)
- set_bit(X86_FEATURE_3DNOW, c->x86_capability);
- /* See if we can find out some more. */
- if ( cpuid_eax(0x80000000) >= 0x80000005 ) {
- /* Yes, we can. */
- cpuid(0x80000005,&aa,&bb,&cc,&dd);
- /* Add L1 data and code cache sizes. */
- c->x86_cache_size = (cc>>24)+(dd>>24);
- }
- sprintf( c->x86_model_id, "WinChip %s", name );
- break;
-
- case 6:
- init_c3(c);
- break;
- }
-}
-
-static unsigned int __cpuinit centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size)
-{
- /* VIA C3 CPUs (670-68F) need further shifting. */
- if ((c->x86 == 6) && ((c->x86_model == 7) || (c->x86_model == 8)))
- size >>= 8;
-
- /* VIA also screwed up Nehemiah stepping 1, and made
- it return '65KB' instead of '64KB'
- - Note, it seems this may only be in engineering samples. */
- if ((c->x86==6) && (c->x86_model==9) && (c->x86_mask==1) && (size==65))
- size -=1;
-
- return size;
-}
-
-static struct cpu_dev centaur_cpu_dev __cpuinitdata = {
- .c_vendor = "Centaur",
- .c_ident = { "CentaurHauls" },
- .c_init = init_centaur,
- .c_size_cache = centaur_size_cache,
-};
-
-int __init centaur_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_CENTAUR] = &centaur_cpu_dev;
- return 0;
-}
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
deleted file mode 100644
index d506201d397..00000000000
--- a/arch/i386/kernel/cpu/common.c
+++ /dev/null
@@ -1,733 +0,0 @@
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/smp.h>
-#include <linux/module.h>
-#include <linux/percpu.h>
-#include <linux/bootmem.h>
-#include <asm/semaphore.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/msr.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/mtrr.h>
-#include <asm/mce.h>
-#ifdef CONFIG_X86_LOCAL_APIC
-#include <asm/mpspec.h>
-#include <asm/apic.h>
-#include <mach_apic.h>
-#endif
-
-#include "cpu.h"
-
-DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
- [GDT_ENTRY_KERNEL_CS] = { 0x0000ffff, 0x00cf9a00 },
- [GDT_ENTRY_KERNEL_DS] = { 0x0000ffff, 0x00cf9200 },
- [GDT_ENTRY_DEFAULT_USER_CS] = { 0x0000ffff, 0x00cffa00 },
- [GDT_ENTRY_DEFAULT_USER_DS] = { 0x0000ffff, 0x00cff200 },
- /*
- * Segments used for calling PnP BIOS have byte granularity.
- * They code segments and data segments have fixed 64k limits,
- * the transfer segment sizes are set at run time.
- */
- [GDT_ENTRY_PNPBIOS_CS32] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */
- [GDT_ENTRY_PNPBIOS_CS16] = { 0x0000ffff, 0x00009a00 },/* 16-bit code */
- [GDT_ENTRY_PNPBIOS_DS] = { 0x0000ffff, 0x00009200 }, /* 16-bit data */
- [GDT_ENTRY_PNPBIOS_TS1] = { 0x00000000, 0x00009200 },/* 16-bit data */
- [GDT_ENTRY_PNPBIOS_TS2] = { 0x00000000, 0x00009200 },/* 16-bit data */
- /*
- * The APM segments have byte granularity and their bases
- * are set at run time. All have 64k limits.
- */
- [GDT_ENTRY_APMBIOS_BASE] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */
- /* 16-bit code */
- [GDT_ENTRY_APMBIOS_BASE+1] = { 0x0000ffff, 0x00009a00 },
- [GDT_ENTRY_APMBIOS_BASE+2] = { 0x0000ffff, 0x00409200 }, /* data */
-
- [GDT_ENTRY_ESPFIX_SS] = { 0x00000000, 0x00c09200 },
- [GDT_ENTRY_PERCPU] = { 0x00000000, 0x00000000 },
-} };
-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
-
-static int cachesize_override __cpuinitdata = -1;
-static int disable_x86_fxsr __cpuinitdata;
-static int disable_x86_serial_nr __cpuinitdata = 1;
-static int disable_x86_sep __cpuinitdata;
-
-struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
-
-extern int disable_pse;
-
-static void __cpuinit default_init(struct cpuinfo_x86 * c)
-{
- /* Not much we can do here... */
- /* Check if at least it has cpuid */
- if (c->cpuid_level == -1) {
- /* No cpuid. It must be an ancient CPU */
- if (c->x86 == 4)
- strcpy(c->x86_model_id, "486");
- else if (c->x86 == 3)
- strcpy(c->x86_model_id, "386");
- }
-}
-
-static struct cpu_dev __cpuinitdata default_cpu = {
- .c_init = default_init,
- .c_vendor = "Unknown",
-};
-static struct cpu_dev * this_cpu __cpuinitdata = &default_cpu;
-
-static int __init cachesize_setup(char *str)
-{
- get_option (&str, &cachesize_override);
- return 1;
-}
-__setup("cachesize=", cachesize_setup);
-
-int __cpuinit get_model_name(struct cpuinfo_x86 *c)
-{
- unsigned int *v;
- char *p, *q;
-
- if (cpuid_eax(0x80000000) < 0x80000004)
- return 0;
-
- v = (unsigned int *) c->x86_model_id;
- cpuid(0x80000002, &v[0], &v[1], &v[2], &v[3]);
- cpuid(0x80000003, &v[4], &v[5], &v[6], &v[7]);
- cpuid(0x80000004, &v[8], &v[9], &v[10], &v[11]);
- c->x86_model_id[48] = 0;
-
- /* Intel chips right-justify this string for some dumb reason;
- undo that brain damage */
- p = q = &c->x86_model_id[0];
- while ( *p == ' ' )
- p++;
- if ( p != q ) {
- while ( *p )
- *q++ = *p++;
- while ( q <= &c->x86_model_id[48] )
- *q++ = '\0'; /* Zero-pad the rest */
- }
-
- return 1;
-}
-
-
-void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
-{
- unsigned int n, dummy, ecx, edx, l2size;
-
- n = cpuid_eax(0x80000000);
-
- if (n >= 0x80000005) {
- cpuid(0x80000005, &dummy, &dummy, &ecx, &edx);
- printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), D cache %dK (%d bytes/line)\n",
- edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
- c->x86_cache_size=(ecx>>24)+(edx>>24);
- }
-
- if (n < 0x80000006) /* Some chips just has a large L1. */
- return;
-
- ecx = cpuid_ecx(0x80000006);
- l2size = ecx >> 16;
-
- /* do processor-specific cache resizing */
- if (this_cpu->c_size_cache)
- l2size = this_cpu->c_size_cache(c,l2size);
-
- /* Allow user to override all this if necessary. */
- if (cachesize_override != -1)
- l2size = cachesize_override;
-
- if ( l2size == 0 )
- return; /* Again, no L2 cache is possible */
-
- c->x86_cache_size = l2size;
-
- printk(KERN_INFO "CPU: L2 Cache: %dK (%d bytes/line)\n",
- l2size, ecx & 0xFF);
-}
-
-/* Naming convention should be: <Name> [(<Codename>)] */
-/* This table only is used unless init_<vendor>() below doesn't set it; */
-/* in particular, if CPUID levels 0x80000002..4 are supported, this isn't used */
-
-/* Look up CPU names by table lookup. */
-static char __cpuinit *table_lookup_model(struct cpuinfo_x86 *c)
-{
- struct cpu_model_info *info;
-
- if ( c->x86_model >= 16 )
- return NULL; /* Range check */
-
- if (!this_cpu)
- return NULL;
-
- info = this_cpu->c_models;
-
- while (info && info->family) {
- if (info->family == c->x86)
- return info->model_names[c->x86_model];
- info++;
- }
- return NULL; /* Not found */
-}
-
-
-static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
-{
- char *v = c->x86_vendor_id;
- int i;
- static int printed;
-
- for (i = 0; i < X86_VENDOR_NUM; i++) {
- if (cpu_devs[i]) {
- if (!strcmp(v,cpu_devs[i]->c_ident[0]) ||
- (cpu_devs[i]->c_ident[1] &&
- !strcmp(v,cpu_devs[i]->c_ident[1]))) {
- c->x86_vendor = i;
- if (!early)
- this_cpu = cpu_devs[i];
- return;
- }
- }
- }
- if (!printed) {
- printed++;
- printk(KERN_ERR "CPU: Vendor unknown, using generic init.\n");
- printk(KERN_ERR "CPU: Your system may be unstable.\n");
- }
- c->x86_vendor = X86_VENDOR_UNKNOWN;
- this_cpu = &default_cpu;
-}
-
-
-static int __init x86_fxsr_setup(char * s)
-{
- /* Tell all the other CPU's to not use it... */
- disable_x86_fxsr = 1;
-
- /*
- * ... and clear the bits early in the boot_cpu_data
- * so that the bootup process doesn't try to do this
- * either.
- */
- clear_bit(X86_FEATURE_FXSR, boot_cpu_data.x86_capability);
- clear_bit(X86_FEATURE_XMM, boot_cpu_data.x86_capability);
- return 1;
-}
-__setup("nofxsr", x86_fxsr_setup);
-
-
-static int __init x86_sep_setup(char * s)
-{
- disable_x86_sep = 1;
- return 1;
-}
-__setup("nosep", x86_sep_setup);
-
-
-/* Standard macro to see if a specific flag is changeable */
-static inline int flag_is_changeable_p(u32 flag)
-{
- u32 f1, f2;
-
- asm("pushfl\n\t"
- "pushfl\n\t"
- "popl %0\n\t"
- "movl %0,%1\n\t"
- "xorl %2,%0\n\t"
- "pushl %0\n\t"
- "popfl\n\t"
- "pushfl\n\t"
- "popl %0\n\t"
- "popfl\n\t"
- : "=&r" (f1), "=&r" (f2)
- : "ir" (flag));
-
- return ((f1^f2) & flag) != 0;
-}
-
-
-/* Probe for the CPUID instruction */
-static int __cpuinit have_cpuid_p(void)
-{
- return flag_is_changeable_p(X86_EFLAGS_ID);
-}
-
-void __init cpu_detect(struct cpuinfo_x86 *c)
-{
- /* Get vendor name */
- cpuid(0x00000000, &c->cpuid_level,
- (int *)&c->x86_vendor_id[0],
- (int *)&c->x86_vendor_id[8],
- (int *)&c->x86_vendor_id[4]);
-
- c->x86 = 4;
- if (c->cpuid_level >= 0x00000001) {
- u32 junk, tfms, cap0, misc;
- cpuid(0x00000001, &tfms, &misc, &junk, &cap0);
- c->x86 = (tfms >> 8) & 15;
- c->x86_model = (tfms >> 4) & 15;
- if (c->x86 == 0xf)
- c->x86 += (tfms >> 20) & 0xff;
- if (c->x86 >= 0x6)
- c->x86_model += ((tfms >> 16) & 0xF) << 4;
- c->x86_mask = tfms & 15;
- if (cap0 & (1<<19))
- c->x86_cache_alignment = ((misc >> 8) & 0xff) * 8;
- }
-}
-
-/* Do minimum CPU detection early.
- Fields really needed: vendor, cpuid_level, family, model, mask, cache alignment.
- The others are not touched to avoid unwanted side effects.
-
- WARNING: this function is only called on the BP. Don't add code here
- that is supposed to run on all CPUs. */
-static void __init early_cpu_detect(void)
-{
- struct cpuinfo_x86 *c = &boot_cpu_data;
-
- c->x86_cache_alignment = 32;
-
- if (!have_cpuid_p())
- return;
-
- cpu_detect(c);
-
- get_cpu_vendor(c, 1);
-}
-
-static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
-{
- u32 tfms, xlvl;
- int ebx;
-
- if (have_cpuid_p()) {
- /* Get vendor name */
- cpuid(0x00000000, &c->cpuid_level,
- (int *)&c->x86_vendor_id[0],
- (int *)&c->x86_vendor_id[8],
- (int *)&c->x86_vendor_id[4]);
-
- get_cpu_vendor(c, 0);
- /* Initialize the standard set of capabilities */
- /* Note that the vendor-specific code below might override */
-
- /* Intel-defined flags: level 0x00000001 */
- if ( c->cpuid_level >= 0x00000001 ) {
- u32 capability, excap;
- cpuid(0x00000001, &tfms, &ebx, &excap, &capability);
- c->x86_capability[0] = capability;
- c->x86_capability[4] = excap;
- c->x86 = (tfms >> 8) & 15;
- c->x86_model = (tfms >> 4) & 15;
- if (c->x86 == 0xf)
- c->x86 += (tfms >> 20) & 0xff;
- if (c->x86 >= 0x6)
- c->x86_model += ((tfms >> 16) & 0xF) << 4;
- c->x86_mask = tfms & 15;
-#ifdef CONFIG_X86_HT
- c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0);
-#else
- c->apicid = (ebx >> 24) & 0xFF;
-#endif
- if (c->x86_capability[0] & (1<<19))
- c->x86_clflush_size = ((ebx >> 8) & 0xff) * 8;
- } else {
- /* Have CPUID level 0 only - unheard of */
- c->x86 = 4;
- }
-
- /* AMD-defined flags: level 0x80000001 */
- xlvl = cpuid_eax(0x80000000);
- if ( (xlvl & 0xffff0000) == 0x80000000 ) {
- if ( xlvl >= 0x80000001 ) {
- c->x86_capability[1] = cpuid_edx(0x80000001);
- c->x86_capability[6] = cpuid_ecx(0x80000001);
- }
- if ( xlvl >= 0x80000004 )
- get_model_name(c); /* Default name */
- }
-
- init_scattered_cpuid_features(c);
- }
-
- early_intel_workaround(c);
-
-#ifdef CONFIG_X86_HT
- c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
-#endif
-}
-
-static void __cpuinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
-{
- if (cpu_has(c, X86_FEATURE_PN) && disable_x86_serial_nr ) {
- /* Disable processor serial number */
- unsigned long lo,hi;
- rdmsr(MSR_IA32_BBL_CR_CTL,lo,hi);
- lo |= 0x200000;
- wrmsr(MSR_IA32_BBL_CR_CTL,lo,hi);
- printk(KERN_NOTICE "CPU serial number disabled.\n");
- clear_bit(X86_FEATURE_PN, c->x86_capability);
-
- /* Disabling the serial number may affect the cpuid level */
- c->cpuid_level = cpuid_eax(0);
- }
-}
-
-static int __init x86_serial_nr_setup(char *s)
-{
- disable_x86_serial_nr = 0;
- return 1;
-}
-__setup("serialnumber", x86_serial_nr_setup);
-
-
-
-/*
- * This does the hard work of actually picking apart the CPU stuff...
- */
-static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
-{
- int i;
-
- c->loops_per_jiffy = loops_per_jiffy;
- c->x86_cache_size = -1;
- c->x86_vendor = X86_VENDOR_UNKNOWN;
- c->cpuid_level = -1; /* CPUID not detected */
- c->x86_model = c->x86_mask = 0; /* So far unknown... */
- c->x86_vendor_id[0] = '\0'; /* Unset */
- c->x86_model_id[0] = '\0'; /* Unset */
- c->x86_max_cores = 1;
- c->x86_clflush_size = 32;
- memset(&c->x86_capability, 0, sizeof c->x86_capability);
-
- if (!have_cpuid_p()) {
- /* First of all, decide if this is a 486 or higher */
- /* It's a 486 if we can modify the AC flag */
- if ( flag_is_changeable_p(X86_EFLAGS_AC) )
- c->x86 = 4;
- else
- c->x86 = 3;
- }
-
- generic_identify(c);
-
- printk(KERN_DEBUG "CPU: After generic identify, caps:");
- for (i = 0; i < NCAPINTS; i++)
- printk(" %08lx", c->x86_capability[i]);
- printk("\n");
-
- if (this_cpu->c_identify) {
- this_cpu->c_identify(c);
-
- printk(KERN_DEBUG "CPU: After vendor identify, caps:");
- for (i = 0; i < NCAPINTS; i++)
- printk(" %08lx", c->x86_capability[i]);
- printk("\n");
- }
-
- /*
- * Vendor-specific initialization. In this section we
- * canonicalize the feature flags, meaning if there are
- * features a certain CPU supports which CPUID doesn't
- * tell us, CPUID claiming incorrect flags, or other bugs,
- * we handle them here.
- *
- * At the end of this section, c->x86_capability better
- * indicate the features this CPU genuinely supports!
- */
- if (this_cpu->c_init)
- this_cpu->c_init(c);
-
- /* Disable the PN if appropriate */
- squash_the_stupid_serial_number(c);
-
- /*
- * The vendor-specific functions might have changed features. Now
- * we do "generic changes."
- */
-
- /* TSC disabled? */
- if ( tsc_disable )
- clear_bit(X86_FEATURE_TSC, c->x86_capability);
-
- /* FXSR disabled? */
- if (disable_x86_fxsr) {
- clear_bit(X86_FEATURE_FXSR, c->x86_capability);
- clear_bit(X86_FEATURE_XMM, c->x86_capability);
- }
-
- /* SEP disabled? */
- if (disable_x86_sep)
- clear_bit(X86_FEATURE_SEP, c->x86_capability);
-
- if (disable_pse)
- clear_bit(X86_FEATURE_PSE, c->x86_capability);
-
- /* If the model name is still unset, do table lookup. */
- if ( !c->x86_model_id[0] ) {
- char *p;
- p = table_lookup_model(c);
- if ( p )
- strcpy(c->x86_model_id, p);
- else
- /* Last resort... */
- sprintf(c->x86_model_id, "%02x/%02x",
- c->x86, c->x86_model);
- }
-
- /* Now the feature flags better reflect actual CPU features! */
-
- printk(KERN_DEBUG "CPU: After all inits, caps:");
- for (i = 0; i < NCAPINTS; i++)
- printk(" %08lx", c->x86_capability[i]);
- printk("\n");
-
- /*
- * On SMP, boot_cpu_data holds the common feature set between
- * all CPUs; so make sure that we indicate which features are
- * common between the CPUs. The first time this routine gets
- * executed, c == &boot_cpu_data.
- */
- if ( c != &boot_cpu_data ) {
- /* AND the already accumulated flags with these */
- for ( i = 0 ; i < NCAPINTS ; i++ )
- boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
- }
-
- /* Init Machine Check Exception if available. */
- mcheck_init(c);
-}
-
-void __init identify_boot_cpu(void)
-{
- identify_cpu(&boot_cpu_data);
- sysenter_setup();
- enable_sep_cpu();
- mtrr_bp_init();
-}
-
-void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
-{
- BUG_ON(c == &boot_cpu_data);
- identify_cpu(c);
- enable_sep_cpu();
- mtrr_ap_init();
-}
-
-#ifdef CONFIG_X86_HT
-void __cpuinit detect_ht(struct cpuinfo_x86 *c)
-{
- u32 eax, ebx, ecx, edx;
- int index_msb, core_bits;
-
- cpuid(1, &eax, &ebx, &ecx, &edx);
-
- if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
- return;
-
- smp_num_siblings = (ebx & 0xff0000) >> 16;
-
- if (smp_num_siblings == 1) {
- printk(KERN_INFO "CPU: Hyper-Threading is disabled\n");
- } else if (smp_num_siblings > 1 ) {
-
- if (smp_num_siblings > NR_CPUS) {
- printk(KERN_WARNING "CPU: Unsupported number of the "
- "siblings %d", smp_num_siblings);
- smp_num_siblings = 1;
- return;
- }
-
- index_msb = get_count_order(smp_num_siblings);
- c->phys_proc_id = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
-
- printk(KERN_INFO "CPU: Physical Processor ID: %d\n",
- c->phys_proc_id);
-
- smp_num_siblings = smp_num_siblings / c->x86_max_cores;
-
- index_msb = get_count_order(smp_num_siblings) ;
-
- core_bits = get_count_order(c->x86_max_cores);
-
- c->cpu_core_id = phys_pkg_id((ebx >> 24) & 0xFF, index_msb) &
- ((1 << core_bits) - 1);
-
- if (c->x86_max_cores > 1)
- printk(KERN_INFO "CPU: Processor Core ID: %d\n",
- c->cpu_core_id);
- }
-}
-#endif
-
-void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
-{
- char *vendor = NULL;
-
- if (c->x86_vendor < X86_VENDOR_NUM)
- vendor = this_cpu->c_vendor;
- else if (c->cpuid_level >= 0)
- vendor = c->x86_vendor_id;
-
- if (vendor && strncmp(c->x86_model_id, vendor, strlen(vendor)))
- printk("%s ", vendor);
-
- if (!c->x86_model_id[0])
- printk("%d86", c->x86);
- else
- printk("%s", c->x86_model_id);
-
- if (c->x86_mask || c->cpuid_level >= 0)
- printk(" stepping %02x\n", c->x86_mask);
- else
- printk("\n");
-}
-
-cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
-
-/* This is hacky. :)
- * We're emulating future behavior.
- * In the future, the cpu-specific init functions will be called implicitly
- * via the magic of initcalls.
- * They will insert themselves into the cpu_devs structure.
- * Then, when cpu_init() is called, we can just iterate over that array.
- */
-
-extern int intel_cpu_init(void);
-extern int cyrix_init_cpu(void);
-extern int nsc_init_cpu(void);
-extern int amd_init_cpu(void);
-extern int centaur_init_cpu(void);
-extern int transmeta_init_cpu(void);
-extern int nexgen_init_cpu(void);
-extern int umc_init_cpu(void);
-
-void __init early_cpu_init(void)
-{
- intel_cpu_init();
- cyrix_init_cpu();
- nsc_init_cpu();
- amd_init_cpu();
- centaur_init_cpu();
- transmeta_init_cpu();
- nexgen_init_cpu();
- umc_init_cpu();
- early_cpu_detect();
-
-#ifdef CONFIG_DEBUG_PAGEALLOC
- /* pse is not compatible with on-the-fly unmapping,
- * disable it even if the cpus claim to support it.
- */
- clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability);
- disable_pse = 1;
-#endif
-}
-
-/* Make sure %fs is initialized properly in idle threads */
-struct pt_regs * __devinit idle_regs(struct pt_regs *regs)
-{
- memset(regs, 0, sizeof(struct pt_regs));
- regs->xfs = __KERNEL_PERCPU;
- return regs;
-}
-
-/* Current gdt points %fs at the "master" per-cpu area: after this,
- * it's on the real one. */
-void switch_to_new_gdt(void)
-{
- struct Xgt_desc_struct gdt_descr;
-
- gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id());
- gdt_descr.size = GDT_SIZE - 1;
- load_gdt(&gdt_descr);
- asm("mov %0, %%fs" : : "r" (__KERNEL_PERCPU) : "memory");
-}
-
-/*
- * cpu_init() initializes state that is per-CPU. Some data is already
- * initialized (naturally) in the bootstrap process, such as the GDT
- * and IDT. We reload them nevertheless, this function acts as a
- * 'CPU state barrier', nothing should get across.
- */
-void __cpuinit cpu_init(void)
-{
- int cpu = smp_processor_id();
- struct task_struct *curr = current;
- struct tss_struct * t = &per_cpu(init_tss, cpu);
- struct thread_struct *thread = &curr->thread;
-
- if (cpu_test_and_set(cpu, cpu_initialized)) {
- printk(KERN_WARNING "CPU#%d already initialized!\n", cpu);
- for (;;) local_irq_enable();
- }
-
- printk(KERN_INFO "Initializing CPU#%d\n", cpu);
-
- if (cpu_has_vme || cpu_has_tsc || cpu_has_de)
- clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
- if (tsc_disable && cpu_has_tsc) {
- printk(KERN_NOTICE "Disabling TSC...\n");
- /**** FIX-HPA: DOES THIS REALLY BELONG HERE? ****/
- clear_bit(X86_FEATURE_TSC, boot_cpu_data.x86_capability);
- set_in_cr4(X86_CR4_TSD);
- }
-
- load_idt(&idt_descr);
- switch_to_new_gdt();
-
- /*
- * Set up and load the per-CPU TSS and LDT
- */
- atomic_inc(&init_mm.mm_count);
- curr->active_mm = &init_mm;
- if (curr->mm)
- BUG();
- enter_lazy_tlb(&init_mm, curr);
-
- load_esp0(t, thread);
- set_tss_desc(cpu,t);
- load_TR_desc();
- load_LDT(&init_mm.context);
-
-#ifdef CONFIG_DOUBLEFAULT
- /* Set up doublefault TSS pointer in the GDT */
- __set_tss_desc(cpu, GDT_ENTRY_DOUBLEFAULT_TSS, &doublefault_tss);
-#endif
-
- /* Clear %gs. */
- asm volatile ("mov %0, %%gs" : : "r" (0));
-
- /* Clear all 6 debug registers: */
- 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:
- */
- current_thread_info()->status = 0;
- clear_used_math();
- mxcsr_feature_mask_init();
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-void __cpuinit cpu_uninit(void)
-{
- int cpu = raw_smp_processor_id();
- cpu_clear(cpu, cpu_initialized);
-
- /* lazy TLB state */
- per_cpu(cpu_tlbstate, cpu).state = 0;
- per_cpu(cpu_tlbstate, cpu).active_mm = &init_mm;
-}
-#endif
diff --git a/arch/i386/kernel/cpu/cpu.h b/arch/i386/kernel/cpu/cpu.h
deleted file mode 100644
index 2f6432cef6f..00000000000
--- a/arch/i386/kernel/cpu/cpu.h
+++ /dev/null
@@ -1,28 +0,0 @@
-
-struct cpu_model_info {
- int vendor;
- int family;
- char *model_names[16];
-};
-
-/* attempt to consolidate cpu attributes */
-struct cpu_dev {
- char * c_vendor;
-
- /* some have two possibilities for cpuid string */
- char * c_ident[2];
-
- struct cpu_model_info c_models[4];
-
- void (*c_init)(struct cpuinfo_x86 * c);
- void (*c_identify)(struct cpuinfo_x86 * c);
- unsigned int (*c_size_cache)(struct cpuinfo_x86 * c, unsigned int size);
-};
-
-extern struct cpu_dev * cpu_devs [X86_VENDOR_NUM];
-
-extern int get_model_name(struct cpuinfo_x86 *c);
-extern void display_cacheinfo(struct cpuinfo_x86 *c);
-
-extern void early_intel_workaround(struct cpuinfo_x86 *c);
-
diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c
deleted file mode 100644
index 122d2d75aa9..00000000000
--- a/arch/i386/kernel/cpu/cyrix.c
+++ /dev/null
@@ -1,463 +0,0 @@
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/processor-cyrix.h>
-#include <asm/timer.h>
-#include <asm/pci-direct.h>
-#include <asm/tsc.h>
-
-#include "cpu.h"
-
-/*
- * Read NSC/Cyrix DEVID registers (DIR) to get more detailed info. about the CPU
- */
-static void __cpuinit do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
-{
- unsigned char ccr2, ccr3;
- unsigned long flags;
-
- /* we test for DEVID by checking whether CCR3 is writable */
- local_irq_save(flags);
- ccr3 = getCx86(CX86_CCR3);
- setCx86(CX86_CCR3, ccr3 ^ 0x80);
- getCx86(0xc0); /* dummy to change bus */
-
- if (getCx86(CX86_CCR3) == ccr3) { /* no DEVID regs. */
- ccr2 = getCx86(CX86_CCR2);
- setCx86(CX86_CCR2, ccr2 ^ 0x04);
- getCx86(0xc0); /* dummy */
-
- if (getCx86(CX86_CCR2) == ccr2) /* old Cx486SLC/DLC */
- *dir0 = 0xfd;
- else { /* Cx486S A step */
- setCx86(CX86_CCR2, ccr2);
- *dir0 = 0xfe;
- }
- }
- else {
- setCx86(CX86_CCR3, ccr3); /* restore CCR3 */
-
- /* read DIR0 and DIR1 CPU registers */
- *dir0 = getCx86(CX86_DIR0);
- *dir1 = getCx86(CX86_DIR1);
- }
- local_irq_restore(flags);
-}
-
-/*
- * 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 ???
- */
-static unsigned char Cx86_dir0_msb __cpuinitdata = 0;
-
-static char Cx86_model[][9] __cpuinitdata = {
- "Cx486", "Cx486", "5x86 ", "6x86", "MediaGX ", "6x86MX ",
- "M II ", "Unknown"
-};
-static char Cx486_name[][5] __cpuinitdata = {
- "SLC", "DLC", "SLC2", "DLC2", "SRx", "DRx",
- "SRx2", "DRx2"
-};
-static char Cx486S_name[][4] __cpuinitdata = {
- "S", "S2", "Se", "S2e"
-};
-static char Cx486D_name[][4] __cpuinitdata = {
- "DX", "DX2", "?", "?", "?", "DX4"
-};
-static char Cx86_cb[] __cpuinitdata = "?.5x Core/Bus Clock";
-static char cyrix_model_mult1[] __cpuinitdata = "12??43";
-static char cyrix_model_mult2[] __cpuinitdata = "12233445";
-
-/*
- * Reset the slow-loop (SLOP) bit on the 686(L) which is set by some old
- * BIOSes for compatibility with DOS games. This makes the udelay loop
- * work correctly, and improves performance.
- *
- * FIXME: our newer udelay uses the tsc. We don't need to frob with SLOP
- */
-
-extern void calibrate_delay(void) __init;
-
-static void __cpuinit check_cx686_slop(struct cpuinfo_x86 *c)
-{
- unsigned long flags;
-
- if (Cx86_dir0_msb == 3) {
- unsigned char ccr3, ccr5;
-
- local_irq_save(flags);
- ccr3 = getCx86(CX86_CCR3);
- setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */
- ccr5 = getCx86(CX86_CCR5);
- if (ccr5 & 2)
- setCx86(CX86_CCR5, ccr5 & 0xfd); /* reset SLOP */
- setCx86(CX86_CCR3, ccr3); /* disable MAPEN */
- local_irq_restore(flags);
-
- if (ccr5 & 2) { /* possible wrong calibration done */
- printk(KERN_INFO "Recalibrating delay loop with SLOP bit reset\n");
- calibrate_delay();
- c->loops_per_jiffy = loops_per_jiffy;
- }
- }
-}
-
-
-static void __cpuinit set_cx86_reorder(void)
-{
- u8 ccr3;
-
- printk(KERN_INFO "Enable Memory access reorder on Cyrix/NSC processor.\n");
- ccr3 = getCx86(CX86_CCR3);
- setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN  */
-
- /* Load/Store Serialize to mem access disable (=reorder it)  */
- setCx86(CX86_PCR0, getCx86(CX86_PCR0) & ~0x80);
- /* set load/store serialize from 1GB to 4GB */
- ccr3 |= 0xe0;
- setCx86(CX86_CCR3, ccr3);
-}
-
-static void __cpuinit set_cx86_memwb(void)
-{
- u32 cr0;
-
- printk(KERN_INFO "Enable Memory-Write-back mode on Cyrix/NSC processor.\n");
-
- /* CCR2 bit 2: unlock NW bit */
- setCx86(CX86_CCR2, getCx86(CX86_CCR2) & ~0x04);
- /* set 'Not Write-through' */
- cr0 = 0x20000000;
- write_cr0(read_cr0() | cr0);
- /* CCR2 bit 2: lock NW bit and set WT1 */
- setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14 );
-}
-
-static void __cpuinit set_cx86_inc(void)
-{
- unsigned char ccr3;
-
- printk(KERN_INFO "Enable Incrementor on Cyrix/NSC processor.\n");
-
- ccr3 = getCx86(CX86_CCR3);
- setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN  */
- /* PCR1 -- Performance Control */
- /* Incrementor on, whatever that is */
- setCx86(CX86_PCR1, getCx86(CX86_PCR1) | 0x02);
- /* PCR0 -- Performance Control */
- /* Incrementor Margin 10 */
- setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x04);
- setCx86(CX86_CCR3, ccr3); /* disable MAPEN */
-}
-
-/*
- * Configure later MediaGX and/or Geode processor.
- */
-
-static void __cpuinit geode_configure(void)
-{
- unsigned long flags;
- u8 ccr3;
- local_irq_save(flags);
-
- /* Suspend on halt power saving and enable #SUSP pin */
- setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88);
-
- ccr3 = getCx86(CX86_CCR3);
- setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */
-
-
- /* FPU fast, DTE cache, Mem bypass */
- setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x38);
- setCx86(CX86_CCR3, ccr3); /* disable MAPEN */
-
- set_cx86_memwb();
- set_cx86_reorder();
- set_cx86_inc();
-
- local_irq_restore(flags);
-}
-
-
-static void __cpuinit init_cyrix(struct cpuinfo_x86 *c)
-{
- unsigned char dir0, dir0_msn, dir0_lsn, dir1 = 0;
- char *buf = c->x86_model_id;
- const char *p = NULL;
-
- /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
- 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
- clear_bit(0*32+31, c->x86_capability);
-
- /* Cyrix used bit 24 in extended (AMD) CPUID for Cyrix MMX extensions */
- if ( test_bit(1*32+24, c->x86_capability) ) {
- clear_bit(1*32+24, c->x86_capability);
- set_bit(X86_FEATURE_CXMMX, c->x86_capability);
- }
-
- do_cyrix_devid(&dir0, &dir1);
-
- check_cx686_slop(c);
-
- Cx86_dir0_msb = dir0_msn = dir0 >> 4; /* identifies CPU "family" */
- dir0_lsn = dir0 & 0xf; /* model or clock multiplier */
-
- /* common case step number/rev -- exceptions handled below */
- c->x86_model = (dir1 >> 4) + 1;
- c->x86_mask = dir1 & 0xf;
-
- /* Now cook; the original recipe is by Channing Corn, from Cyrix.
- * We do the same thing for each generation: we work out
- * the model, multiplier and stepping. Black magic included,
- * to make the silicon step/rev numbers match the printed ones.
- */
-
- switch (dir0_msn) {
- unsigned char tmp;
-
- case 0: /* Cx486SLC/DLC/SRx/DRx */
- p = Cx486_name[dir0_lsn & 7];
- break;
-
- case 1: /* Cx486S/DX/DX2/DX4 */
- p = (dir0_lsn & 8) ? Cx486D_name[dir0_lsn & 5]
- : Cx486S_name[dir0_lsn & 3];
- break;
-
- case 2: /* 5x86 */
- Cx86_cb[2] = cyrix_model_mult1[dir0_lsn & 5];
- p = Cx86_cb+2;
- break;
-
- case 3: /* 6x86/6x86L */
- Cx86_cb[1] = ' ';
- Cx86_cb[2] = cyrix_model_mult1[dir0_lsn & 5];
- if (dir1 > 0x21) { /* 686L */
- Cx86_cb[0] = 'L';
- p = Cx86_cb;
- (c->x86_model)++;
- } else /* 686 */
- p = Cx86_cb+1;
- /* Emulate MTRRs using Cyrix's ARRs. */
- set_bit(X86_FEATURE_CYRIX_ARR, c->x86_capability);
- /* 6x86's contain this bug */
- c->coma_bug = 1;
- break;
-
- case 4: /* MediaGX/GXm or Geode GXM/GXLV/GX1 */
-#ifdef CONFIG_PCI
- {
- u32 vendor, device;
- /* It isn't really a PCI quirk directly, but the cure is the
- same. The MediaGX has deep magic SMM stuff that handles the
- SB emulation. It thows away the fifo on disable_dma() which
- is wrong and ruins the audio.
-
- Bug2: VSA1 has a wrap bug so that using maximum sized DMA
- causes bad things. According to NatSemi VSA2 has another
- bug to do with 'hlt'. I've not seen any boards using VSA2
- and X doesn't seem to support it either so who cares 8).
- VSA1 we work around however.
- */
-
- printk(KERN_INFO "Working around Cyrix MediaGX virtual DMA bugs.\n");
- isa_dma_bridge_buggy = 2;
-
- /* We do this before the PCI layer is running. However we
- are safe here as we know the bridge must be a Cyrix
- companion and must be present */
- vendor = read_pci_config_16(0, 0, 0x12, PCI_VENDOR_ID);
- device = read_pci_config_16(0, 0, 0x12, PCI_DEVICE_ID);
-
- /*
- * The 5510/5520 companion chips have a funky PIT.
- */
- if (vendor == PCI_VENDOR_ID_CYRIX &&
- (device == PCI_DEVICE_ID_CYRIX_5510 || device == PCI_DEVICE_ID_CYRIX_5520))
- mark_tsc_unstable("cyrix 5510/5520 detected");
- }
-#endif
- c->x86_cache_size=16; /* Yep 16K integrated cache thats it */
-
- /* GXm supports extended cpuid levels 'ala' AMD */
- if (c->cpuid_level == 2) {
- /* Enable cxMMX extensions (GX1 Datasheet 54) */
- setCx86(CX86_CCR7, getCx86(CX86_CCR7) | 1);
-
- /*
- * GXm : 0x30 ... 0x5f GXm datasheet 51
- * GXlv: 0x6x GXlv datasheet 54
- * ? : 0x7x
- * GX1 : 0x8x GX1 datasheet 56
- */
- if((0x30 <= dir1 && dir1 <= 0x6f) || (0x80 <=dir1 && dir1 <= 0x8f))
- geode_configure();
- get_model_name(c); /* get CPU marketing name */
- return;
- }
- else { /* MediaGX */
- Cx86_cb[2] = (dir0_lsn & 1) ? '3' : '4';
- p = Cx86_cb+2;
- c->x86_model = (dir1 & 0x20) ? 1 : 2;
- }
- break;
-
- case 5: /* 6x86MX/M II */
- if (dir1 > 7)
- {
- dir0_msn++; /* M II */
- /* Enable MMX extensions (App note 108) */
- setCx86(CX86_CCR7, getCx86(CX86_CCR7)|1);
- }
- else
- {
- c->coma_bug = 1; /* 6x86MX, it has the bug. */
- }
- tmp = (!(dir0_lsn & 7) || dir0_lsn & 1) ? 2 : 0;
- Cx86_cb[tmp] = cyrix_model_mult2[dir0_lsn & 7];
- p = Cx86_cb+tmp;
- if (((dir1 & 0x0f) > 4) || ((dir1 & 0xf0) == 0x20))
- (c->x86_model)++;
- /* Emulate MTRRs using Cyrix's ARRs. */
- set_bit(X86_FEATURE_CYRIX_ARR, c->x86_capability);
- break;
-
- case 0xf: /* Cyrix 486 without DEVID registers */
- switch (dir0_lsn) {
- case 0xd: /* either a 486SLC or DLC w/o DEVID */
- dir0_msn = 0;
- p = Cx486_name[(c->hard_math) ? 1 : 0];
- break;
-
- case 0xe: /* a 486S A step */
- dir0_msn = 0;
- p = Cx486S_name[0];
- break;
- }
- break;
-
- default: /* unknown (shouldn't happen, we know everyone ;-) */
- dir0_msn = 7;
- break;
- }
- strcpy(buf, Cx86_model[dir0_msn & 7]);
- if (p) strcat(buf, p);
- return;
-}
-
-/*
- * Handle National Semiconductor branded processors
- */
-static void __cpuinit init_nsc(struct cpuinfo_x86 *c)
-{
- /* There may be GX1 processors in the wild that are branded
- * NSC and not Cyrix.
- *
- * This function only handles the GX processor, and kicks every
- * thing else to the Cyrix init function above - that should
- * cover any processors that might have been branded differently
- * after NSC acquired Cyrix.
- *
- * If this breaks your GX1 horribly, please e-mail
- * info-linux@ldcmail.amd.com to tell us.
- */
-
- /* Handle the GX (Formally known as the GX2) */
-
- if (c->x86 == 5 && c->x86_model == 5)
- display_cacheinfo(c);
- else
- init_cyrix(c);
-}
-
-/*
- * Cyrix CPUs without cpuid or with cpuid not yet enabled can be detected
- * by the fact that they preserve the flags across the division of 5/2.
- * PII and PPro exhibit this behavior too, but they have cpuid available.
- */
-
-/*
- * Perform the Cyrix 5/2 test. A Cyrix won't change
- * the flags, while other 486 chips will.
- */
-static inline int test_cyrix_52div(void)
-{
- unsigned int test;
-
- __asm__ __volatile__(
- "sahf\n\t" /* clear flags (%eax = 0x0005) */
- "div %b2\n\t" /* divide 5 by 2 */
- "lahf" /* store flags into %ah */
- : "=a" (test)
- : "0" (5), "q" (2)
- : "cc");
-
- /* AH is 0x02 on Cyrix after the divide.. */
- return (unsigned char) (test >> 8) == 0x02;
-}
-
-static void __cpuinit cyrix_identify(struct cpuinfo_x86 * c)
-{
- /* Detect Cyrix with disabled CPUID */
- if ( c->x86 == 4 && test_cyrix_52div() ) {
- unsigned char dir0, dir1;
-
- strcpy(c->x86_vendor_id, "CyrixInstead");
- c->x86_vendor = X86_VENDOR_CYRIX;
-
- /* Actually enable cpuid on the older cyrix */
-
- /* Retrieve CPU revisions */
-
- do_cyrix_devid(&dir0, &dir1);
-
- dir0>>=4;
-
- /* Check it is an affected model */
-
- if (dir0 == 5 || dir0 == 3)
- {
- unsigned char ccr3;
- unsigned long flags;
- printk(KERN_INFO "Enabling CPUID on Cyrix processor.\n");
- local_irq_save(flags);
- ccr3 = getCx86(CX86_CCR3);
- setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */
- setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x80); /* enable cpuid */
- setCx86(CX86_CCR3, ccr3); /* disable MAPEN */
- local_irq_restore(flags);
- }
- }
-}
-
-static struct cpu_dev cyrix_cpu_dev __cpuinitdata = {
- .c_vendor = "Cyrix",
- .c_ident = { "CyrixInstead" },
- .c_init = init_cyrix,
- .c_identify = cyrix_identify,
-};
-
-int __init cyrix_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_CYRIX] = &cyrix_cpu_dev;
- return 0;
-}
-
-static struct cpu_dev nsc_cpu_dev __cpuinitdata = {
- .c_vendor = "NSC",
- .c_ident = { "Geode by NSC" },
- .c_init = init_nsc,
-};
-
-int __init nsc_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_NSC] = &nsc_cpu_dev;
- return 0;
-}
-
diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c
deleted file mode 100644
index dc4e08147b1..00000000000
--- a/arch/i386/kernel/cpu/intel.c
+++ /dev/null
@@ -1,333 +0,0 @@
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/string.h>
-#include <linux/bitops.h>
-#include <linux/smp.h>
-#include <linux/thread_info.h>
-#include <linux/module.h>
-
-#include <asm/processor.h>
-#include <asm/msr.h>
-#include <asm/uaccess.h>
-
-#include "cpu.h"
-
-#ifdef CONFIG_X86_LOCAL_APIC
-#include <asm/mpspec.h>
-#include <asm/apic.h>
-#include <mach_apic.h>
-#endif
-
-extern int trap_init_f00f_bug(void);
-
-#ifdef CONFIG_X86_INTEL_USERCOPY
-/*
- * Alignment at which movsl is preferred for bulk memory copies.
- */
-struct movsl_mask movsl_mask __read_mostly;
-#endif
-
-void __cpuinit early_intel_workaround(struct cpuinfo_x86 *c)
-{
- if (c->x86_vendor != X86_VENDOR_INTEL)
- return;
- /* Netburst reports 64 bytes clflush size, but does IO in 128 bytes */
- if (c->x86 == 15 && c->x86_cache_alignment == 64)
- c->x86_cache_alignment = 128;
-}
-
-/*
- * Early probe support logic for ppro memory erratum #50
- *
- * This is called before we do cpu ident work
- */
-
-int __cpuinit ppro_with_ram_bug(void)
-{
- /* Uses data from early_cpu_detect now */
- if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
- boot_cpu_data.x86 == 6 &&
- boot_cpu_data.x86_model == 1 &&
- boot_cpu_data.x86_mask < 8) {
- printk(KERN_INFO "Pentium Pro with Errata#50 detected. Taking evasive action.\n");
- return 1;
- }
- return 0;
-}
-
-
-/*
- * P4 Xeon errata 037 workaround.
- * Hardware prefetcher may cause stale data to be loaded into the cache.
- */
-static void __cpuinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
-{
- unsigned long lo, hi;
-
- if ((c->x86 == 15) && (c->x86_model == 1) && (c->x86_mask == 1)) {
- rdmsr (MSR_IA32_MISC_ENABLE, lo, hi);
- if ((lo & (1<<9)) == 0) {
- printk (KERN_INFO "CPU: C0 stepping P4 Xeon detected.\n");
- printk (KERN_INFO "CPU: Disabling hardware prefetching (Errata 037)\n");
- lo |= (1<<9); /* Disable hw prefetching */
- wrmsr (MSR_IA32_MISC_ENABLE, lo, hi);
- }
- }
-}
-
-
-/*
- * find out the number of processor cores on the die
- */
-static int __cpuinit num_cpu_cores(struct cpuinfo_x86 *c)
-{
- unsigned int eax, ebx, ecx, edx;
-
- if (c->cpuid_level < 4)
- return 1;
-
- /* 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
- return 1;
-}
-
-static void __cpuinit init_intel(struct cpuinfo_x86 *c)
-{
- unsigned int l2 = 0;
- char *p = NULL;
-
-#ifdef CONFIG_X86_F00F_BUG
- /*
- * All current models of Pentium and Pentium with MMX technology CPUs
- * have the F0 0F bug, which lets nonprivileged users lock up the system.
- * Note that the workaround only should be initialized once...
- */
- c->f00f_bug = 0;
- if (!paravirt_enabled() && c->x86 == 5) {
- static int f00f_workaround_enabled = 0;
-
- c->f00f_bug = 1;
- if ( !f00f_workaround_enabled ) {
- trap_init_f00f_bug();
- printk(KERN_NOTICE "Intel Pentium with F0 0F bug - workaround enabled.\n");
- f00f_workaround_enabled = 1;
- }
- }
-#endif
-
- select_idle_routine(c);
- l2 = init_intel_cacheinfo(c);
- if (c->cpuid_level > 9 ) {
- unsigned eax = cpuid_eax(10);
- /* Check for version and the number of counters */
- if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
- set_bit(X86_FEATURE_ARCH_PERFMON, c->x86_capability);
- }
-
- /* SEP CPUID bug: Pentium Pro reports SEP but doesn't have it until model 3 mask 3 */
- if ((c->x86<<8 | c->x86_model<<4 | c->x86_mask) < 0x633)
- clear_bit(X86_FEATURE_SEP, c->x86_capability);
-
- /* Names for the Pentium II/Celeron processors
- detectable only by also checking the cache size.
- Dixon is NOT a Celeron. */
- if (c->x86 == 6) {
- switch (c->x86_model) {
- case 5:
- if (c->x86_mask == 0) {
- if (l2 == 0)
- p = "Celeron (Covington)";
- else if (l2 == 256)
- p = "Mobile Pentium II (Dixon)";
- }
- break;
-
- case 6:
- if (l2 == 128)
- p = "Celeron (Mendocino)";
- else if (c->x86_mask == 0 || c->x86_mask == 5)
- p = "Celeron-A";
- break;
-
- case 8:
- if (l2 == 128)
- p = "Celeron (Coppermine)";
- break;
- }
- }
-
- if ( p )
- strcpy(c->x86_model_id, p);
-
- c->x86_max_cores = num_cpu_cores(c);
-
- detect_ht(c);
-
- /* Work around errata */
- Intel_errata_workarounds(c);
-
-#ifdef CONFIG_X86_INTEL_USERCOPY
- /*
- * Set up the preferred alignment for movsl bulk memory moves
- */
- switch (c->x86) {
- case 4: /* 486: untested */
- break;
- case 5: /* Old Pentia: untested */
- break;
- case 6: /* PII/PIII only like movsl with 8-byte alignment */
- movsl_mask.mask = 7;
- break;
- case 15: /* P4 is OK down to 8-byte alignment */
- movsl_mask.mask = 7;
- break;
- }
-#endif
-
- if (c->x86 == 15) {
- set_bit(X86_FEATURE_P4, c->x86_capability);
- set_bit(X86_FEATURE_SYNC_RDTSC, c->x86_capability);
- }
- if (c->x86 == 6)
- set_bit(X86_FEATURE_P3, c->x86_capability);
- if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
- (c->x86 == 0x6 && c->x86_model >= 0x0e))
- set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
-
- if (cpu_has_ds) {
- unsigned int l1;
- rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
- if (!(l1 & (1<<11)))
- set_bit(X86_FEATURE_BTS, c->x86_capability);
- if (!(l1 & (1<<12)))
- set_bit(X86_FEATURE_PEBS, c->x86_capability);
- }
-}
-
-static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 * c, unsigned int size)
-{
- /* Intel PIII Tualatin. This comes in two flavours.
- * One has 256kb of cache, the other 512. We have no way
- * to determine which, so we use a boottime override
- * for the 512kb model, and assume 256 otherwise.
- */
- if ((c->x86 == 6) && (c->x86_model == 11) && (size == 0))
- size = 256;
- return size;
-}
-
-static struct cpu_dev intel_cpu_dev __cpuinitdata = {
- .c_vendor = "Intel",
- .c_ident = { "GenuineIntel" },
- .c_models = {
- { .vendor = X86_VENDOR_INTEL, .family = 4, .model_names =
- {
- [0] = "486 DX-25/33",
- [1] = "486 DX-50",
- [2] = "486 SX",
- [3] = "486 DX/2",
- [4] = "486 SL",
- [5] = "486 SX/2",
- [7] = "486 DX/2-WB",
- [8] = "486 DX/4",
- [9] = "486 DX/4-WB"
- }
- },
- { .vendor = X86_VENDOR_INTEL, .family = 5, .model_names =
- {
- [0] = "Pentium 60/66 A-step",
- [1] = "Pentium 60/66",
- [2] = "Pentium 75 - 200",
- [3] = "OverDrive PODP5V83",
- [4] = "Pentium MMX",
- [7] = "Mobile Pentium 75 - 200",
- [8] = "Mobile Pentium MMX"
- }
- },
- { .vendor = X86_VENDOR_INTEL, .family = 6, .model_names =
- {
- [0] = "Pentium Pro A-step",
- [1] = "Pentium Pro",
- [3] = "Pentium II (Klamath)",
- [4] = "Pentium II (Deschutes)",
- [5] = "Pentium II (Deschutes)",
- [6] = "Mobile Pentium II",
- [7] = "Pentium III (Katmai)",
- [8] = "Pentium III (Coppermine)",
- [10] = "Pentium III (Cascades)",
- [11] = "Pentium III (Tualatin)",
- }
- },
- { .vendor = X86_VENDOR_INTEL, .family = 15, .model_names =
- {
- [0] = "Pentium 4 (Unknown)",
- [1] = "Pentium 4 (Willamette)",
- [2] = "Pentium 4 (Northwood)",
- [4] = "Pentium 4 (Foster)",
- [5] = "Pentium 4 (Foster)",
- }
- },
- },
- .c_init = init_intel,
- .c_size_cache = intel_size_cache,
-};
-
-__init int intel_cpu_init(void)
-{
- cpu_devs[X86_VENDOR_INTEL] = &intel_cpu_dev;
- return 0;
-}
-
-#ifndef CONFIG_X86_CMPXCHG
-unsigned long cmpxchg_386_u8(volatile void *ptr, u8 old, u8 new)
-{
- u8 prev;
- unsigned long flags;
-
- /* Poor man's cmpxchg for 386. Unsuitable for SMP */
- local_irq_save(flags);
- prev = *(u8 *)ptr;
- if (prev == old)
- *(u8 *)ptr = new;
- local_irq_restore(flags);
- return prev;
-}
-EXPORT_SYMBOL(cmpxchg_386_u8);
-
-unsigned long cmpxchg_386_u16(volatile void *ptr, u16 old, u16 new)
-{
- u16 prev;
- unsigned long flags;
-
- /* Poor man's cmpxchg for 386. Unsuitable for SMP */
- local_irq_save(flags);
- prev = *(u16 *)ptr;
- if (prev == old)
- *(u16 *)ptr = new;
- local_irq_restore(flags);
- return prev;
-}
-EXPORT_SYMBOL(cmpxchg_386_u16);
-
-unsigned long cmpxchg_386_u32(volatile void *ptr, u32 old, u32 new)
-{
- u32 prev;
- unsigned long flags;
-
- /* Poor man's cmpxchg for 386. Unsuitable for SMP */
- local_irq_save(flags);
- prev = *(u32 *)ptr;
- if (prev == old)
- *(u32 *)ptr = new;
- local_irq_restore(flags);
- return prev;
-}
-EXPORT_SYMBOL(cmpxchg_386_u32);
-#endif
-
-// arch_initcall(intel_cpu_init);
-
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
deleted file mode 100644
index db6c25aa577..00000000000
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ /dev/null
@@ -1,806 +0,0 @@
-/*
- * Routines to indentify caches on Intel CPU.
- *
- * Changes:
- * Venkatesh Pallipadi : Adding cache identification through cpuid(4)
- * Ashok Raj <ashok.raj@intel.com>: Work with CPU hotplug infrastructure.
- * Andi Kleen / Andreas Herrmann : CPUID4 emulation on AMD.
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/compiler.h>
-#include <linux/cpu.h>
-#include <linux/sched.h>
-
-#include <asm/processor.h>
-#include <asm/smp.h>
-
-#define LVL_1_INST 1
-#define LVL_1_DATA 2
-#define LVL_2 3
-#define LVL_3 4
-#define LVL_TRACE 5
-
-struct _cache_table
-{
- unsigned char descriptor;
- char cache_type;
- short size;
-};
-
-/* all the cache descriptor types we care about (no TLB or trace cache entries) */
-static struct _cache_table cache_table[] __cpuinitdata =
-{
- { 0x06, LVL_1_INST, 8 }, /* 4-way set assoc, 32 byte line size */
- { 0x08, LVL_1_INST, 16 }, /* 4-way set assoc, 32 byte line size */
- { 0x0a, LVL_1_DATA, 8 }, /* 2 way set assoc, 32 byte line size */
- { 0x0c, LVL_1_DATA, 16 }, /* 4-way set assoc, 32 byte line size */
- { 0x22, LVL_3, 512 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x23, LVL_3, 1024 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x25, LVL_3, 2048 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x29, LVL_3, 4096 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x2c, LVL_1_DATA, 32 }, /* 8-way set assoc, 64 byte line size */
- { 0x30, LVL_1_INST, 32 }, /* 8-way set assoc, 64 byte line size */
- { 0x39, LVL_2, 128 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x3a, LVL_2, 192 }, /* 6-way set assoc, sectored cache, 64 byte line size */
- { 0x3b, LVL_2, 128 }, /* 2-way set assoc, sectored cache, 64 byte line size */
- { 0x3c, LVL_2, 256 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x3d, LVL_2, 384 }, /* 6-way set assoc, sectored cache, 64 byte line size */
- { 0x3e, LVL_2, 512 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x41, LVL_2, 128 }, /* 4-way set assoc, 32 byte line size */
- { 0x42, LVL_2, 256 }, /* 4-way set assoc, 32 byte line size */
- { 0x43, LVL_2, 512 }, /* 4-way set assoc, 32 byte line size */
- { 0x44, LVL_2, 1024 }, /* 4-way set assoc, 32 byte line size */
- { 0x45, LVL_2, 2048 }, /* 4-way set assoc, 32 byte line size */
- { 0x46, LVL_3, 4096 }, /* 4-way set assoc, 64 byte line size */
- { 0x47, LVL_3, 8192 }, /* 8-way set assoc, 64 byte line size */
- { 0x49, LVL_3, 4096 }, /* 16-way set assoc, 64 byte line size */
- { 0x4a, LVL_3, 6144 }, /* 12-way set assoc, 64 byte line size */
- { 0x4b, LVL_3, 8192 }, /* 16-way set assoc, 64 byte line size */
- { 0x4c, LVL_3, 12288 }, /* 12-way set assoc, 64 byte line size */
- { 0x4d, LVL_3, 16384 }, /* 16-way set assoc, 64 byte line size */
- { 0x60, LVL_1_DATA, 16 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x66, LVL_1_DATA, 8 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x67, LVL_1_DATA, 16 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x68, LVL_1_DATA, 32 }, /* 4-way set assoc, sectored cache, 64 byte line size */
- { 0x70, LVL_TRACE, 12 }, /* 8-way set assoc */
- { 0x71, LVL_TRACE, 16 }, /* 8-way set assoc */
- { 0x72, LVL_TRACE, 32 }, /* 8-way set assoc */
- { 0x73, LVL_TRACE, 64 }, /* 8-way set assoc */
- { 0x78, LVL_2, 1024 }, /* 4-way set assoc, 64 byte line size */
- { 0x79, LVL_2, 128 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x7a, LVL_2, 256 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x7b, LVL_2, 512 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x7c, LVL_2, 1024 }, /* 8-way set assoc, sectored cache, 64 byte line size */
- { 0x7d, LVL_2, 2048 }, /* 8-way set assoc, 64 byte line size */
- { 0x7f, LVL_2, 512 }, /* 2-way set assoc, 64 byte line size */
- { 0x82, LVL_2, 256 }, /* 8-way set assoc, 32 byte line size */
- { 0x83, LVL_2, 512 }, /* 8-way set assoc, 32 byte line size */
- { 0x84, LVL_2, 1024 }, /* 8-way set assoc, 32 byte line size */
- { 0x85, LVL_2, 2048 }, /* 8-way set assoc, 32 byte line size */
- { 0x86, LVL_2, 512 }, /* 4-way set assoc, 64 byte line size */
- { 0x87, LVL_2, 1024 }, /* 8-way set assoc, 64 byte line size */
- { 0x00, 0, 0}
-};
-
-
-enum _cache_type
-{
- CACHE_TYPE_NULL = 0,
- CACHE_TYPE_DATA = 1,
- CACHE_TYPE_INST = 2,
- CACHE_TYPE_UNIFIED = 3
-};
-
-union _cpuid4_leaf_eax {
- struct {
- enum _cache_type type:5;
- unsigned int level:3;
- unsigned int is_self_initializing:1;
- unsigned int is_fully_associative:1;
- unsigned int reserved:4;
- unsigned int num_threads_sharing:12;
- unsigned int num_cores_on_die:6;
- } split;
- u32 full;
-};
-
-union _cpuid4_leaf_ebx {
- struct {
- unsigned int coherency_line_size:12;
- unsigned int physical_line_partition:10;
- unsigned int ways_of_associativity:10;
- } split;
- u32 full;
-};
-
-union _cpuid4_leaf_ecx {
- struct {
- unsigned int number_of_sets:32;
- } split;
- u32 full;
-};
-
-struct _cpuid4_info {
- union _cpuid4_leaf_eax eax;
- union _cpuid4_leaf_ebx ebx;
- union _cpuid4_leaf_ecx ecx;
- unsigned long size;
- cpumask_t shared_cpu_map;
-};
-
-unsigned short num_cache_leaves;
-
-/* AMD doesn't have CPUID4. Emulate it here to report the same
- information to the user. This makes some assumptions about the machine:
- L2 not shared, no SMT etc. that is currently true on AMD CPUs.
-
- In theory the TLBs could be reported as fake type (they are in "dummy").
- Maybe later */
-union l1_cache {
- struct {
- unsigned line_size : 8;
- unsigned lines_per_tag : 8;
- unsigned assoc : 8;
- unsigned size_in_kb : 8;
- };
- unsigned val;
-};
-
-union l2_cache {
- struct {
- unsigned line_size : 8;
- unsigned lines_per_tag : 4;
- unsigned assoc : 4;
- unsigned size_in_kb : 16;
- };
- unsigned val;
-};
-
-union l3_cache {
- struct {
- unsigned line_size : 8;
- unsigned lines_per_tag : 4;
- unsigned assoc : 4;
- unsigned res : 2;
- unsigned size_encoded : 14;
- };
- unsigned val;
-};
-
-static const unsigned short assocs[] = {
- [1] = 1, [2] = 2, [4] = 4, [6] = 8,
- [8] = 16, [0xa] = 32, [0xb] = 48,
- [0xc] = 64,
- [0xf] = 0xffff // ??
-};
-
-static const unsigned char levels[] = { 1, 1, 2, 3 };
-static const unsigned char types[] = { 1, 2, 3, 3 };
-
-static void __cpuinit amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax,
- union _cpuid4_leaf_ebx *ebx,
- union _cpuid4_leaf_ecx *ecx)
-{
- unsigned dummy;
- unsigned line_size, lines_per_tag, assoc, size_in_kb;
- union l1_cache l1i, l1d;
- union l2_cache l2;
- union l3_cache l3;
- union l1_cache *l1 = &l1d;
-
- eax->full = 0;
- ebx->full = 0;
- ecx->full = 0;
-
- cpuid(0x80000005, &dummy, &dummy, &l1d.val, &l1i.val);
- cpuid(0x80000006, &dummy, &dummy, &l2.val, &l3.val);
-
- switch (leaf) {
- case 1:
- l1 = &l1i;
- case 0:
- if (!l1->val)
- return;
- assoc = l1->assoc;
- line_size = l1->line_size;
- lines_per_tag = l1->lines_per_tag;
- size_in_kb = l1->size_in_kb;
- break;
- case 2:
- if (!l2.val)
- return;
- assoc = l2.assoc;
- line_size = l2.line_size;
- lines_per_tag = l2.lines_per_tag;
- /* cpu_data has errata corrections for K7 applied */
- size_in_kb = current_cpu_data.x86_cache_size;
- break;
- case 3:
- if (!l3.val)
- return;
- assoc = l3.assoc;
- line_size = l3.line_size;
- lines_per_tag = l3.lines_per_tag;
- size_in_kb = l3.size_encoded * 512;
- break;
- default:
- return;
- }
-
- eax->split.is_self_initializing = 1;
- eax->split.type = types[leaf];
- eax->split.level = levels[leaf];
- if (leaf == 3)
- eax->split.num_threads_sharing = current_cpu_data.x86_max_cores - 1;
- else
- eax->split.num_threads_sharing = 0;
- eax->split.num_cores_on_die = current_cpu_data.x86_max_cores - 1;
-
-
- if (assoc == 0xf)
- eax->split.is_fully_associative = 1;
- ebx->split.coherency_line_size = line_size - 1;
- ebx->split.ways_of_associativity = assocs[assoc] - 1;
- ebx->split.physical_line_partition = lines_per_tag - 1;
- ecx->split.number_of_sets = (size_in_kb * 1024) / line_size /
- (ebx->split.ways_of_associativity + 1) - 1;
-}
-
-static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
-{
- union _cpuid4_leaf_eax eax;
- union _cpuid4_leaf_ebx ebx;
- union _cpuid4_leaf_ecx ecx;
- unsigned edx;
-
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
- amd_cpuid4(index, &eax, &ebx, &ecx);
- else
- cpuid_count(4, index, &eax.full, &ebx.full, &ecx.full, &edx);
- if (eax.split.type == CACHE_TYPE_NULL)
- return -EIO; /* better error ? */
-
- this_leaf->eax = eax;
- this_leaf->ebx = ebx;
- this_leaf->ecx = ecx;
- this_leaf->size = (ecx.split.number_of_sets + 1) *
- (ebx.split.coherency_line_size + 1) *
- (ebx.split.physical_line_partition + 1) *
- (ebx.split.ways_of_associativity + 1);
- return 0;
-}
-
-static int __cpuinit find_num_cache_leaves(void)
-{
- unsigned int eax, ebx, ecx, edx;
- union _cpuid4_leaf_eax cache_eax;
- int i = -1;
-
- do {
- ++i;
- /* Do cpuid(4) loop to find out num_cache_leaves */
- cpuid_count(4, i, &eax, &ebx, &ecx, &edx);
- cache_eax.full = eax;
- } while (cache_eax.split.type != CACHE_TYPE_NULL);
- return i;
-}
-
-unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
-{
- unsigned int trace = 0, l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */
- unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */
- unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */
- unsigned int l2_id = 0, l3_id = 0, num_threads_sharing, index_msb;
-#ifdef CONFIG_X86_HT
- unsigned int cpu = (c == &boot_cpu_data) ? 0 : (c - cpu_data);
-#endif
-
- if (c->cpuid_level > 3) {
- static int is_initialized;
-
- if (is_initialized == 0) {
- /* Init num_cache_leaves from boot CPU */
- num_cache_leaves = find_num_cache_leaves();
- is_initialized++;
- }
-
- /*
- * Whenever possible use cpuid(4), deterministic cache
- * parameters cpuid leaf to find the cache details
- */
- for (i = 0; i < num_cache_leaves; i++) {
- struct _cpuid4_info this_leaf;
-
- int retval;
-
- retval = cpuid4_cache_lookup(i, &this_leaf);
- if (retval >= 0) {
- switch(this_leaf.eax.split.level) {
- case 1:
- if (this_leaf.eax.split.type ==
- CACHE_TYPE_DATA)
- new_l1d = this_leaf.size/1024;
- else if (this_leaf.eax.split.type ==
- CACHE_TYPE_INST)
- new_l1i = this_leaf.size/1024;
- break;
- case 2:
- new_l2 = this_leaf.size/1024;
- num_threads_sharing = 1 + this_leaf.eax.split.num_threads_sharing;
- index_msb = get_count_order(num_threads_sharing);
- l2_id = c->apicid >> index_msb;
- break;
- case 3:
- new_l3 = this_leaf.size/1024;
- num_threads_sharing = 1 + this_leaf.eax.split.num_threads_sharing;
- index_msb = get_count_order(num_threads_sharing);
- l3_id = c->apicid >> index_msb;
- break;
- default:
- break;
- }
- }
- }
- }
- /*
- * Don't use cpuid2 if cpuid4 is supported. For P4, we use cpuid2 for
- * trace cache
- */
- if ((num_cache_leaves == 0 || c->x86 == 15) && c->cpuid_level > 1) {
- /* supports eax=2 call */
- int i, j, n;
- int regs[4];
- unsigned char *dp = (unsigned char *)regs;
- int only_trace = 0;
-
- if (num_cache_leaves != 0 && c->x86 == 15)
- only_trace = 1;
-
- /* Number of times to iterate */
- n = cpuid_eax(2) & 0xFF;
-
- for ( i = 0 ; i < n ; i++ ) {
- cpuid(2, &regs[0], &regs[1], &regs[2], &regs[3]);
-
- /* If bit 31 is set, this is an unknown format */
- for ( j = 0 ; j < 3 ; j++ ) {
- if ( regs[j] < 0 ) regs[j] = 0;
- }
-
- /* Byte 0 is level count, not a descriptor */
- for ( j = 1 ; j < 16 ; j++ ) {
- unsigned char des = dp[j];
- unsigned char k = 0;
-
- /* look up this descriptor in the table */
- while (cache_table[k].descriptor != 0)
- {
- if (cache_table[k].descriptor == des) {
- if (only_trace && cache_table[k].cache_type != LVL_TRACE)
- break;
- switch (cache_table[k].cache_type) {
- case LVL_1_INST:
- l1i += cache_table[k].size;
- break;
- case LVL_1_DATA:
- l1d += cache_table[k].size;
- break;
- case LVL_2:
- l2 += cache_table[k].size;
- break;
- case LVL_3:
- l3 += cache_table[k].size;
- break;
- case LVL_TRACE:
- trace += cache_table[k].size;
- break;
- }
-
- break;
- }
-
- k++;
- }
- }
- }
- }
-
- if (new_l1d)
- l1d = new_l1d;
-
- if (new_l1i)
- l1i = new_l1i;
-
- if (new_l2) {
- l2 = new_l2;
-#ifdef CONFIG_X86_HT
- cpu_llc_id[cpu] = l2_id;
-#endif
- }
-
- if (new_l3) {
- l3 = new_l3;
-#ifdef CONFIG_X86_HT
- cpu_llc_id[cpu] = l3_id;
-#endif
- }
-
- if (trace)
- printk (KERN_INFO "CPU: Trace cache: %dK uops", trace);
- else if ( l1i )
- printk (KERN_INFO "CPU: L1 I cache: %dK", l1i);
-
- if (l1d)
- printk(", L1 D cache: %dK\n", l1d);
- else
- printk("\n");
-
- if (l2)
- printk(KERN_INFO "CPU: L2 cache: %dK\n", l2);
-
- if (l3)
- printk(KERN_INFO "CPU: L3 cache: %dK\n", l3);
-
- c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));
-
- return l2;
-}
-
-/* pointer to _cpuid4_info array (for each cache leaf) */
-static struct _cpuid4_info *cpuid4_info[NR_CPUS];
-#define CPUID4_INFO_IDX(x,y) (&((cpuid4_info[x])[y]))
-
-#ifdef CONFIG_SMP
-static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
-{
- struct _cpuid4_info *this_leaf, *sibling_leaf;
- unsigned long num_threads_sharing;
- int index_msb, i;
- struct cpuinfo_x86 *c = cpu_data;
-
- this_leaf = CPUID4_INFO_IDX(cpu, index);
- num_threads_sharing = 1 + this_leaf->eax.split.num_threads_sharing;
-
- if (num_threads_sharing == 1)
- cpu_set(cpu, this_leaf->shared_cpu_map);
- else {
- index_msb = get_count_order(num_threads_sharing);
-
- for_each_online_cpu(i) {
- if (c[i].apicid >> index_msb ==
- c[cpu].apicid >> index_msb) {
- cpu_set(i, this_leaf->shared_cpu_map);
- if (i != cpu && cpuid4_info[i]) {
- sibling_leaf = CPUID4_INFO_IDX(i, index);
- cpu_set(cpu, sibling_leaf->shared_cpu_map);
- }
- }
- }
- }
-}
-static void __cpuinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
-{
- struct _cpuid4_info *this_leaf, *sibling_leaf;
- int sibling;
-
- this_leaf = CPUID4_INFO_IDX(cpu, index);
- for_each_cpu_mask(sibling, this_leaf->shared_cpu_map) {
- sibling_leaf = CPUID4_INFO_IDX(sibling, index);
- cpu_clear(cpu, sibling_leaf->shared_cpu_map);
- }
-}
-#else
-static void __init cache_shared_cpu_map_setup(unsigned int cpu, int index) {}
-static void __init cache_remove_shared_cpu_map(unsigned int cpu, int index) {}
-#endif
-
-static void free_cache_attributes(unsigned int cpu)
-{
- kfree(cpuid4_info[cpu]);
- cpuid4_info[cpu] = NULL;
-}
-
-static int __cpuinit detect_cache_attributes(unsigned int cpu)
-{
- struct _cpuid4_info *this_leaf;
- unsigned long j;
- int retval;
- cpumask_t oldmask;
-
- if (num_cache_leaves == 0)
- return -ENOENT;
-
- cpuid4_info[cpu] = kzalloc(
- sizeof(struct _cpuid4_info) * num_cache_leaves, GFP_KERNEL);
- if (cpuid4_info[cpu] == NULL)
- return -ENOMEM;
-
- oldmask = current->cpus_allowed;
- retval = set_cpus_allowed(current, cpumask_of_cpu(cpu));
- if (retval)
- goto out;
-
- /* Do cpuid and store the results */
- retval = 0;
- for (j = 0; j < num_cache_leaves; j++) {
- this_leaf = CPUID4_INFO_IDX(cpu, j);
- retval = cpuid4_cache_lookup(j, this_leaf);
- if (unlikely(retval < 0))
- break;
- cache_shared_cpu_map_setup(cpu, j);
- }
- set_cpus_allowed(current, oldmask);
-
-out:
- if (retval)
- free_cache_attributes(cpu);
- return retval;
-}
-
-#ifdef CONFIG_SYSFS
-
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-
-extern struct sysdev_class cpu_sysdev_class; /* from drivers/base/cpu.c */
-
-/* pointer to kobject for cpuX/cache */
-static struct kobject * cache_kobject[NR_CPUS];
-
-struct _index_kobject {
- struct kobject kobj;
- unsigned int cpu;
- unsigned short index;
-};
-
-/* pointer to array of kobjects for cpuX/cache/indexY */
-static struct _index_kobject *index_kobject[NR_CPUS];
-#define INDEX_KOBJECT_PTR(x,y) (&((index_kobject[x])[y]))
-
-#define show_one_plus(file_name, object, val) \
-static ssize_t show_##file_name \
- (struct _cpuid4_info *this_leaf, char *buf) \
-{ \
- return sprintf (buf, "%lu\n", (unsigned long)this_leaf->object + val); \
-}
-
-show_one_plus(level, eax.split.level, 0);
-show_one_plus(coherency_line_size, ebx.split.coherency_line_size, 1);
-show_one_plus(physical_line_partition, ebx.split.physical_line_partition, 1);
-show_one_plus(ways_of_associativity, ebx.split.ways_of_associativity, 1);
-show_one_plus(number_of_sets, ecx.split.number_of_sets, 1);
-
-static ssize_t show_size(struct _cpuid4_info *this_leaf, char *buf)
-{
- return sprintf (buf, "%luK\n", this_leaf->size / 1024);
-}
-
-static ssize_t show_shared_cpu_map(struct _cpuid4_info *this_leaf, char *buf)
-{
- char mask_str[NR_CPUS];
- cpumask_scnprintf(mask_str, NR_CPUS, this_leaf->shared_cpu_map);
- return sprintf(buf, "%s\n", mask_str);
-}
-
-static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf) {
- switch(this_leaf->eax.split.type) {
- case CACHE_TYPE_DATA:
- return sprintf(buf, "Data\n");
- break;
- case CACHE_TYPE_INST:
- return sprintf(buf, "Instruction\n");
- break;
- case CACHE_TYPE_UNIFIED:
- return sprintf(buf, "Unified\n");
- break;
- default:
- return sprintf(buf, "Unknown\n");
- break;
- }
-}
-
-struct _cache_attr {
- struct attribute attr;
- ssize_t (*show)(struct _cpuid4_info *, char *);
- ssize_t (*store)(struct _cpuid4_info *, const char *, size_t count);
-};
-
-#define define_one_ro(_name) \
-static struct _cache_attr _name = \
- __ATTR(_name, 0444, show_##_name, NULL)
-
-define_one_ro(level);
-define_one_ro(type);
-define_one_ro(coherency_line_size);
-define_one_ro(physical_line_partition);
-define_one_ro(ways_of_associativity);
-define_one_ro(number_of_sets);
-define_one_ro(size);
-define_one_ro(shared_cpu_map);
-
-static struct attribute * default_attrs[] = {
- &type.attr,
- &level.attr,
- &coherency_line_size.attr,
- &physical_line_partition.attr,
- &ways_of_associativity.attr,
- &number_of_sets.attr,
- &size.attr,
- &shared_cpu_map.attr,
- NULL
-};
-
-#define to_object(k) container_of(k, struct _index_kobject, kobj)
-#define to_attr(a) container_of(a, struct _cache_attr, attr)
-
-static ssize_t show(struct kobject * kobj, struct attribute * attr, char * buf)
-{
- struct _cache_attr *fattr = to_attr(attr);
- struct _index_kobject *this_leaf = to_object(kobj);
- ssize_t ret;
-
- ret = fattr->show ?
- fattr->show(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index),
- buf) :
- 0;
- return ret;
-}
-
-static ssize_t store(struct kobject * kobj, struct attribute * attr,
- const char * buf, size_t count)
-{
- return 0;
-}
-
-static struct sysfs_ops sysfs_ops = {
- .show = show,
- .store = store,
-};
-
-static struct kobj_type ktype_cache = {
- .sysfs_ops = &sysfs_ops,
- .default_attrs = default_attrs,
-};
-
-static struct kobj_type ktype_percpu_entry = {
- .sysfs_ops = &sysfs_ops,
-};
-
-static void cpuid4_cache_sysfs_exit(unsigned int cpu)
-{
- kfree(cache_kobject[cpu]);
- kfree(index_kobject[cpu]);
- cache_kobject[cpu] = NULL;
- index_kobject[cpu] = NULL;
- free_cache_attributes(cpu);
-}
-
-static int __cpuinit cpuid4_cache_sysfs_init(unsigned int cpu)
-{
-
- if (num_cache_leaves == 0)
- return -ENOENT;
-
- detect_cache_attributes(cpu);
- if (cpuid4_info[cpu] == NULL)
- return -ENOENT;
-
- /* Allocate all required memory */
- cache_kobject[cpu] = kzalloc(sizeof(struct kobject), GFP_KERNEL);
- if (unlikely(cache_kobject[cpu] == NULL))
- goto err_out;
-
- index_kobject[cpu] = kzalloc(
- sizeof(struct _index_kobject ) * num_cache_leaves, GFP_KERNEL);
- if (unlikely(index_kobject[cpu] == NULL))
- goto err_out;
-
- return 0;
-
-err_out:
- cpuid4_cache_sysfs_exit(cpu);
- return -ENOMEM;
-}
-
-/* Add/Remove cache interface for CPU device */
-static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
-{
- unsigned int cpu = sys_dev->id;
- unsigned long i, j;
- struct _index_kobject *this_object;
- int retval = 0;
-
- retval = cpuid4_cache_sysfs_init(cpu);
- if (unlikely(retval < 0))
- return retval;
-
- cache_kobject[cpu]->parent = &sys_dev->kobj;
- kobject_set_name(cache_kobject[cpu], "%s", "cache");
- cache_kobject[cpu]->ktype = &ktype_percpu_entry;
- retval = kobject_register(cache_kobject[cpu]);
-
- for (i = 0; i < num_cache_leaves; i++) {
- this_object = INDEX_KOBJECT_PTR(cpu,i);
- this_object->cpu = cpu;
- this_object->index = i;
- this_object->kobj.parent = cache_kobject[cpu];
- kobject_set_name(&(this_object->kobj), "index%1lu", i);
- this_object->kobj.ktype = &ktype_cache;
- retval = kobject_register(&(this_object->kobj));
- if (unlikely(retval)) {
- for (j = 0; j < i; j++) {
- kobject_unregister(
- &(INDEX_KOBJECT_PTR(cpu,j)->kobj));
- }
- kobject_unregister(cache_kobject[cpu]);
- cpuid4_cache_sysfs_exit(cpu);
- break;
- }
- }
- return retval;
-}
-
-static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
-{
- unsigned int cpu = sys_dev->id;
- unsigned long i;
-
- if (cpuid4_info[cpu] == NULL)
- return;
- for (i = 0; i < num_cache_leaves; i++) {
- cache_remove_shared_cpu_map(cpu, i);
- kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
- }
- kobject_unregister(cache_kobject[cpu]);
- cpuid4_cache_sysfs_exit(cpu);
- return;
-}
-
-static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
-{
- unsigned int cpu = (unsigned long)hcpu;
- struct sys_device *sys_dev;
-
- sys_dev = get_cpu_sysdev(cpu);
- switch (action) {
- case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
- cache_add_dev(sys_dev);
- break;
- case CPU_DEAD:
- case CPU_DEAD_FROZEN:
- cache_remove_dev(sys_dev);
- break;
- }
- return NOTIFY_OK;
-}
-
-static struct notifier_block __cpuinitdata cacheinfo_cpu_notifier =
-{
- .notifier_call = cacheinfo_cpu_callback,
-};
-
-static int __cpuinit cache_sysfs_init(void)
-{
- int i;
-
- if (num_cache_leaves == 0)
- return 0;
-
- register_hotcpu_notifier(&cacheinfo_cpu_notifier);
-
- for_each_online_cpu(i) {
- cacheinfo_cpu_callback(&cacheinfo_cpu_notifier, CPU_ONLINE,
- (void *)(long)i);
- }
-
- return 0;
-}
-
-device_initcall(cache_sysfs_init);
-
-#endif
diff --git a/arch/i386/kernel/cpu/nexgen.c b/arch/i386/kernel/cpu/nexgen.c
deleted file mode 100644
index 961fbe1a748..00000000000
--- a/arch/i386/kernel/cpu/nexgen.c
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <asm/processor.h>
-
-#include "cpu.h"
-
-/*
- * Detect a NexGen CPU running without BIOS hypercode new enough
- * to have CPUID. (Thanks to Herbert Oppmann)
- */
-
-static int __cpuinit deep_magic_nexgen_probe(void)
-{
- int ret;
-
- __asm__ __volatile__ (
- " movw $0x5555, %%ax\n"
- " xorw %%dx,%%dx\n"
- " movw $2, %%cx\n"
- " divw %%cx\n"
- " movl $0, %%eax\n"
- " jnz 1f\n"
- " movl $1, %%eax\n"
- "1:\n"
- : "=a" (ret) : : "cx", "dx" );
- return ret;
-}
-
-static void __cpuinit init_nexgen(struct cpuinfo_x86 * c)
-{
- c->x86_cache_size = 256; /* A few had 1 MB... */
-}
-
-static void __cpuinit nexgen_identify(struct cpuinfo_x86 * c)
-{
- /* Detect NexGen with old hypercode */
- if ( deep_magic_nexgen_probe() ) {
- strcpy(c->x86_vendor_id, "NexGenDriven");
- }
-}
-
-static struct cpu_dev nexgen_cpu_dev __cpuinitdata = {
- .c_vendor = "Nexgen",
- .c_ident = { "NexGenDriven" },
- .c_models = {
- { .vendor = X86_VENDOR_NEXGEN,
- .family = 5,
- .model_names = { [1] = "Nx586" }
- },
- },
- .c_init = init_nexgen,
- .c_identify = nexgen_identify,
-};
-
-int __init nexgen_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_NEXGEN] = &nexgen_cpu_dev;
- return 0;
-}
diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c
deleted file mode 100644
index 93fecd4b03d..00000000000
--- a/arch/i386/kernel/cpu/perfctr-watchdog.c
+++ /dev/null
@@ -1,713 +0,0 @@
-/* local apic based NMI watchdog for various CPUs.
- This file also handles reservation of performance counters for coordination
- with other users (like oprofile).
-
- Note that these events normally don't tick when the CPU idles. This means
- the frequency varies with CPU load.
-
- Original code for K7/P6 written by Keith Owens */
-
-#include <linux/percpu.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/bitops.h>
-#include <linux/smp.h>
-#include <linux/nmi.h>
-#include <asm/apic.h>
-#include <asm/intel_arch_perfmon.h>
-
-struct nmi_watchdog_ctlblk {
- unsigned int cccr_msr;
- unsigned int perfctr_msr; /* the MSR to reset in NMI handler */
- unsigned int evntsel_msr; /* the MSR to select the events to handle */
-};
-
-/* Interface defining a CPU specific perfctr watchdog */
-struct wd_ops {
- int (*reserve)(void);
- void (*unreserve)(void);
- int (*setup)(unsigned nmi_hz);
- void (*rearm)(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz);
- void (*stop)(void);
- unsigned perfctr;
- unsigned evntsel;
- u64 checkbit;
-};
-
-static struct wd_ops *wd_ops;
-
-/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's
- * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now)
- */
-#define NMI_MAX_COUNTER_BITS 66
-
-/* perfctr_nmi_owner tracks the ownership of the perfctr registers:
- * evtsel_nmi_owner tracks the ownership of the event selection
- * - different performance counters/ event selection may be reserved for
- * different subsystems this reservation system just tries to coordinate
- * things a little
- */
-static DECLARE_BITMAP(perfctr_nmi_owner, NMI_MAX_COUNTER_BITS);
-static DECLARE_BITMAP(evntsel_nmi_owner, NMI_MAX_COUNTER_BITS);
-
-static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk);
-
-/* converts an msr to an appropriate reservation bit */
-static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr)
-{
- /* returns the bit offset of the performance counter register */
- switch (boot_cpu_data.x86_vendor) {
- case X86_VENDOR_AMD:
- return (msr - MSR_K7_PERFCTR0);
- case X86_VENDOR_INTEL:
- if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON))
- return (msr - MSR_ARCH_PERFMON_PERFCTR0);
-
- switch (boot_cpu_data.x86) {
- case 6:
- return (msr - MSR_P6_PERFCTR0);
- case 15:
- return (msr - MSR_P4_BPU_PERFCTR0);
- }
- }
- return 0;
-}
-
-/* converts an msr to an appropriate reservation bit */
-/* returns the bit offset of the event selection register */
-static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr)
-{
- /* returns the bit offset of the event selection register */
- switch (boot_cpu_data.x86_vendor) {
- case X86_VENDOR_AMD:
- return (msr - MSR_K7_EVNTSEL0);
- case X86_VENDOR_INTEL:
- if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON))
- return (msr - MSR_ARCH_PERFMON_EVENTSEL0);
-
- switch (boot_cpu_data.x86) {
- case 6:
- return (msr - MSR_P6_EVNTSEL0);
- case 15:
- return (msr - MSR_P4_BSU_ESCR0);
- }
- }
- return 0;
-
-}
-
-/* checks for a bit availability (hack for oprofile) */
-int avail_to_resrv_perfctr_nmi_bit(unsigned int counter)
-{
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- return (!test_bit(counter, perfctr_nmi_owner));
-}
-
-/* checks the an msr for availability */
-int avail_to_resrv_perfctr_nmi(unsigned int msr)
-{
- unsigned int counter;
-
- counter = nmi_perfctr_msr_to_bit(msr);
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- return (!test_bit(counter, perfctr_nmi_owner));
-}
-
-int reserve_perfctr_nmi(unsigned int msr)
-{
- unsigned int counter;
-
- counter = nmi_perfctr_msr_to_bit(msr);
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- if (!test_and_set_bit(counter, perfctr_nmi_owner))
- return 1;
- return 0;
-}
-
-void release_perfctr_nmi(unsigned int msr)
-{
- unsigned int counter;
-
- counter = nmi_perfctr_msr_to_bit(msr);
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- clear_bit(counter, perfctr_nmi_owner);
-}
-
-int reserve_evntsel_nmi(unsigned int msr)
-{
- unsigned int counter;
-
- counter = nmi_evntsel_msr_to_bit(msr);
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- if (!test_and_set_bit(counter, evntsel_nmi_owner))
- return 1;
- return 0;
-}
-
-void release_evntsel_nmi(unsigned int msr)
-{
- unsigned int counter;
-
- counter = nmi_evntsel_msr_to_bit(msr);
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- clear_bit(counter, evntsel_nmi_owner);
-}
-
-EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi);
-EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit);
-EXPORT_SYMBOL(reserve_perfctr_nmi);
-EXPORT_SYMBOL(release_perfctr_nmi);
-EXPORT_SYMBOL(reserve_evntsel_nmi);
-EXPORT_SYMBOL(release_evntsel_nmi);
-
-void disable_lapic_nmi_watchdog(void)
-{
- BUG_ON(nmi_watchdog != NMI_LOCAL_APIC);
-
- if (atomic_read(&nmi_active) <= 0)
- return;
-
- on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1);
- wd_ops->unreserve();
-
- BUG_ON(atomic_read(&nmi_active) != 0);
-}
-
-void enable_lapic_nmi_watchdog(void)
-{
- BUG_ON(nmi_watchdog != NMI_LOCAL_APIC);
-
- /* are we already enabled */
- if (atomic_read(&nmi_active) != 0)
- return;
-
- /* are we lapic aware */
- if (!wd_ops)
- return;
- if (!wd_ops->reserve()) {
- printk(KERN_ERR "NMI watchdog: cannot reserve perfctrs\n");
- return;
- }
-
- on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1);
- touch_nmi_watchdog();
-}
-
-/*
- * Activate the NMI watchdog via the local APIC.
- */
-
-static unsigned int adjust_for_32bit_ctr(unsigned int hz)
-{
- u64 counter_val;
- unsigned int retval = hz;
-
- /*
- * On Intel CPUs with P6/ARCH_PERFMON only 32 bits in the counter
- * are writable, with higher bits sign extending from bit 31.
- * So, we can only program the counter with 31 bit values and
- * 32nd bit should be 1, for 33.. to be 1.
- * Find the appropriate nmi_hz
- */
- counter_val = (u64)cpu_khz * 1000;
- do_div(counter_val, retval);
- if (counter_val > 0x7fffffffULL) {
- u64 count = (u64)cpu_khz * 1000;
- do_div(count, 0x7fffffffUL);
- retval = count + 1;
- }
- return retval;
-}
-
-static void
-write_watchdog_counter(unsigned int perfctr_msr, const char *descr, unsigned nmi_hz)
-{
- u64 count = (u64)cpu_khz * 1000;
-
- do_div(count, nmi_hz);
- if(descr)
- Dprintk("setting %s to -0x%08Lx\n", descr, count);
- wrmsrl(perfctr_msr, 0 - count);
-}
-
-static void write_watchdog_counter32(unsigned int perfctr_msr,
- const char *descr, unsigned nmi_hz)
-{
- u64 count = (u64)cpu_khz * 1000;
-
- do_div(count, nmi_hz);
- if(descr)
- Dprintk("setting %s to -0x%08Lx\n", descr, count);
- wrmsr(perfctr_msr, (u32)(-count), 0);
-}
-
-/* AMD K7/K8/Family10h/Family11h support. AMD keeps this interface
- nicely stable so there is not much variety */
-
-#define K7_EVNTSEL_ENABLE (1 << 22)
-#define K7_EVNTSEL_INT (1 << 20)
-#define K7_EVNTSEL_OS (1 << 17)
-#define K7_EVNTSEL_USR (1 << 16)
-#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76
-#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING
-
-static int setup_k7_watchdog(unsigned nmi_hz)
-{
- unsigned int perfctr_msr, evntsel_msr;
- unsigned int evntsel;
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
-
- perfctr_msr = wd_ops->perfctr;
- evntsel_msr = wd_ops->evntsel;
-
- wrmsrl(perfctr_msr, 0UL);
-
- evntsel = K7_EVNTSEL_INT
- | K7_EVNTSEL_OS
- | K7_EVNTSEL_USR
- | K7_NMI_EVENT;
-
- /* setup the timer */
- wrmsr(evntsel_msr, evntsel, 0);
- write_watchdog_counter(perfctr_msr, "K7_PERFCTR0",nmi_hz);
- apic_write(APIC_LVTPC, APIC_DM_NMI);
- evntsel |= K7_EVNTSEL_ENABLE;
- wrmsr(evntsel_msr, evntsel, 0);
-
- wd->perfctr_msr = perfctr_msr;
- wd->evntsel_msr = evntsel_msr;
- wd->cccr_msr = 0; //unused
- return 1;
-}
-
-static void single_msr_stop_watchdog(void)
-{
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
-
- wrmsr(wd->evntsel_msr, 0, 0);
-}
-
-static int single_msr_reserve(void)
-{
- if (!reserve_perfctr_nmi(wd_ops->perfctr))
- return 0;
-
- if (!reserve_evntsel_nmi(wd_ops->evntsel)) {
- release_perfctr_nmi(wd_ops->perfctr);
- return 0;
- }
- return 1;
-}
-
-static void single_msr_unreserve(void)
-{
- release_evntsel_nmi(wd_ops->evntsel);
- release_perfctr_nmi(wd_ops->perfctr);
-}
-
-static void single_msr_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
-{
- /* start the cycle over again */
- write_watchdog_counter(wd->perfctr_msr, NULL, nmi_hz);
-}
-
-static struct wd_ops k7_wd_ops = {
- .reserve = single_msr_reserve,
- .unreserve = single_msr_unreserve,
- .setup = setup_k7_watchdog,
- .rearm = single_msr_rearm,
- .stop = single_msr_stop_watchdog,
- .perfctr = MSR_K7_PERFCTR0,
- .evntsel = MSR_K7_EVNTSEL0,
- .checkbit = 1ULL<<47,
-};
-
-/* Intel Model 6 (PPro+,P2,P3,P-M,Core1) */
-
-#define P6_EVNTSEL0_ENABLE (1 << 22)
-#define P6_EVNTSEL_INT (1 << 20)
-#define P6_EVNTSEL_OS (1 << 17)
-#define P6_EVNTSEL_USR (1 << 16)
-#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79
-#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED
-
-static int setup_p6_watchdog(unsigned nmi_hz)
-{
- unsigned int perfctr_msr, evntsel_msr;
- unsigned int evntsel;
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
-
- perfctr_msr = wd_ops->perfctr;
- evntsel_msr = wd_ops->evntsel;
-
- /* KVM doesn't implement this MSR */
- if (wrmsr_safe(perfctr_msr, 0, 0) < 0)
- return 0;
-
- evntsel = P6_EVNTSEL_INT
- | P6_EVNTSEL_OS
- | P6_EVNTSEL_USR
- | P6_NMI_EVENT;
-
- /* setup the timer */
- wrmsr(evntsel_msr, evntsel, 0);
- nmi_hz = adjust_for_32bit_ctr(nmi_hz);
- write_watchdog_counter32(perfctr_msr, "P6_PERFCTR0",nmi_hz);
- apic_write(APIC_LVTPC, APIC_DM_NMI);
- evntsel |= P6_EVNTSEL0_ENABLE;
- wrmsr(evntsel_msr, evntsel, 0);
-
- wd->perfctr_msr = perfctr_msr;
- wd->evntsel_msr = evntsel_msr;
- wd->cccr_msr = 0; //unused
- return 1;
-}
-
-static void p6_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
-{
- /* P6 based Pentium M need to re-unmask
- * the apic vector but it doesn't hurt
- * other P6 variant.
- * ArchPerfom/Core Duo also needs this */
- apic_write(APIC_LVTPC, APIC_DM_NMI);
- /* P6/ARCH_PERFMON has 32 bit counter write */
- write_watchdog_counter32(wd->perfctr_msr, NULL,nmi_hz);
-}
-
-static struct wd_ops p6_wd_ops = {
- .reserve = single_msr_reserve,
- .unreserve = single_msr_unreserve,
- .setup = setup_p6_watchdog,
- .rearm = p6_rearm,
- .stop = single_msr_stop_watchdog,
- .perfctr = MSR_P6_PERFCTR0,
- .evntsel = MSR_P6_EVNTSEL0,
- .checkbit = 1ULL<<39,
-};
-
-/* Intel P4 performance counters. By far the most complicated of all. */
-
-#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7)
-#define P4_ESCR_EVENT_SELECT(N) ((N)<<25)
-#define P4_ESCR_OS (1<<3)
-#define P4_ESCR_USR (1<<2)
-#define P4_CCCR_OVF_PMI0 (1<<26)
-#define P4_CCCR_OVF_PMI1 (1<<27)
-#define P4_CCCR_THRESHOLD(N) ((N)<<20)
-#define P4_CCCR_COMPLEMENT (1<<19)
-#define P4_CCCR_COMPARE (1<<18)
-#define P4_CCCR_REQUIRED (3<<16)
-#define P4_CCCR_ESCR_SELECT(N) ((N)<<13)
-#define P4_CCCR_ENABLE (1<<12)
-#define P4_CCCR_OVF (1<<31)
-
-/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter
- CRU_ESCR0 (with any non-null event selector) through a complemented
- max threshold. [IA32-Vol3, Section 14.9.9] */
-
-static int setup_p4_watchdog(unsigned nmi_hz)
-{
- unsigned int perfctr_msr, evntsel_msr, cccr_msr;
- unsigned int evntsel, cccr_val;
- unsigned int misc_enable, dummy;
- unsigned int ht_num;
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
-
- rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy);
- if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL))
- return 0;
-
-#ifdef CONFIG_SMP
- /* detect which hyperthread we are on */
- if (smp_num_siblings == 2) {
- unsigned int ebx, apicid;
-
- ebx = cpuid_ebx(1);
- apicid = (ebx >> 24) & 0xff;
- ht_num = apicid & 1;
- } else
-#endif
- ht_num = 0;
-
- /* performance counters are shared resources
- * assign each hyperthread its own set
- * (re-use the ESCR0 register, seems safe
- * and keeps the cccr_val the same)
- */
- if (!ht_num) {
- /* logical cpu 0 */
- perfctr_msr = MSR_P4_IQ_PERFCTR0;
- evntsel_msr = MSR_P4_CRU_ESCR0;
- cccr_msr = MSR_P4_IQ_CCCR0;
- cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4);
- } else {
- /* logical cpu 1 */
- perfctr_msr = MSR_P4_IQ_PERFCTR1;
- evntsel_msr = MSR_P4_CRU_ESCR0;
- cccr_msr = MSR_P4_IQ_CCCR1;
- cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4);
- }
-
- evntsel = P4_ESCR_EVENT_SELECT(0x3F)
- | P4_ESCR_OS
- | P4_ESCR_USR;
-
- cccr_val |= P4_CCCR_THRESHOLD(15)
- | P4_CCCR_COMPLEMENT
- | P4_CCCR_COMPARE
- | P4_CCCR_REQUIRED;
-
- wrmsr(evntsel_msr, evntsel, 0);
- wrmsr(cccr_msr, cccr_val, 0);
- write_watchdog_counter(perfctr_msr, "P4_IQ_COUNTER0", nmi_hz);
- apic_write(APIC_LVTPC, APIC_DM_NMI);
- cccr_val |= P4_CCCR_ENABLE;
- wrmsr(cccr_msr, cccr_val, 0);
- wd->perfctr_msr = perfctr_msr;
- wd->evntsel_msr = evntsel_msr;
- wd->cccr_msr = cccr_msr;
- return 1;
-}
-
-static void stop_p4_watchdog(void)
-{
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
- wrmsr(wd->cccr_msr, 0, 0);
- wrmsr(wd->evntsel_msr, 0, 0);
-}
-
-static int p4_reserve(void)
-{
- if (!reserve_perfctr_nmi(MSR_P4_IQ_PERFCTR0))
- return 0;
-#ifdef CONFIG_SMP
- if (smp_num_siblings > 1 && !reserve_perfctr_nmi(MSR_P4_IQ_PERFCTR1))
- goto fail1;
-#endif
- if (!reserve_evntsel_nmi(MSR_P4_CRU_ESCR0))
- goto fail2;
- /* RED-PEN why is ESCR1 not reserved here? */
- return 1;
- fail2:
-#ifdef CONFIG_SMP
- if (smp_num_siblings > 1)
- release_perfctr_nmi(MSR_P4_IQ_PERFCTR1);
- fail1:
-#endif
- release_perfctr_nmi(MSR_P4_IQ_PERFCTR0);
- return 0;
-}
-
-static void p4_unreserve(void)
-{
-#ifdef CONFIG_SMP
- if (smp_num_siblings > 1)
- release_perfctr_nmi(MSR_P4_IQ_PERFCTR1);
-#endif
- release_evntsel_nmi(MSR_P4_CRU_ESCR0);
- release_perfctr_nmi(MSR_P4_IQ_PERFCTR0);
-}
-
-static void p4_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
-{
- unsigned dummy;
- /*
- * P4 quirks:
- * - An overflown perfctr will assert its interrupt
- * until the OVF flag in its CCCR is cleared.
- * - LVTPC is masked on interrupt and must be
- * unmasked by the LVTPC handler.
- */
- rdmsrl(wd->cccr_msr, dummy);
- dummy &= ~P4_CCCR_OVF;
- wrmsrl(wd->cccr_msr, dummy);
- apic_write(APIC_LVTPC, APIC_DM_NMI);
- /* start the cycle over again */
- write_watchdog_counter(wd->perfctr_msr, NULL, nmi_hz);
-}
-
-static struct wd_ops p4_wd_ops = {
- .reserve = p4_reserve,
- .unreserve = p4_unreserve,
- .setup = setup_p4_watchdog,
- .rearm = p4_rearm,
- .stop = stop_p4_watchdog,
- /* RED-PEN this is wrong for the other sibling */
- .perfctr = MSR_P4_BPU_PERFCTR0,
- .evntsel = MSR_P4_BSU_ESCR0,
- .checkbit = 1ULL<<39,
-};
-
-/* Watchdog using the Intel architected PerfMon. Used for Core2 and hopefully
- all future Intel CPUs. */
-
-#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL
-#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK
-
-static int setup_intel_arch_watchdog(unsigned nmi_hz)
-{
- unsigned int ebx;
- union cpuid10_eax eax;
- unsigned int unused;
- unsigned int perfctr_msr, evntsel_msr;
- unsigned int evntsel;
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
-
- /*
- * Check whether the Architectural PerfMon supports
- * Unhalted Core Cycles Event or not.
- * NOTE: Corresponding bit = 0 in ebx indicates event present.
- */
- cpuid(10, &(eax.full), &ebx, &unused, &unused);
- if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) ||
- (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT))
- return 0;
-
- perfctr_msr = wd_ops->perfctr;
- evntsel_msr = wd_ops->evntsel;
-
- wrmsrl(perfctr_msr, 0UL);
-
- evntsel = ARCH_PERFMON_EVENTSEL_INT
- | ARCH_PERFMON_EVENTSEL_OS
- | ARCH_PERFMON_EVENTSEL_USR
- | ARCH_PERFMON_NMI_EVENT_SEL
- | ARCH_PERFMON_NMI_EVENT_UMASK;
-
- /* setup the timer */
- wrmsr(evntsel_msr, evntsel, 0);
- nmi_hz = adjust_for_32bit_ctr(nmi_hz);
- write_watchdog_counter32(perfctr_msr, "INTEL_ARCH_PERFCTR0", nmi_hz);
- apic_write(APIC_LVTPC, APIC_DM_NMI);
- evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE;
- wrmsr(evntsel_msr, evntsel, 0);
-
- wd->perfctr_msr = perfctr_msr;
- wd->evntsel_msr = evntsel_msr;
- wd->cccr_msr = 0; //unused
- wd_ops->checkbit = 1ULL << (eax.split.bit_width - 1);
- return 1;
-}
-
-static struct wd_ops intel_arch_wd_ops = {
- .reserve = single_msr_reserve,
- .unreserve = single_msr_unreserve,
- .setup = setup_intel_arch_watchdog,
- .rearm = p6_rearm,
- .stop = single_msr_stop_watchdog,
- .perfctr = MSR_ARCH_PERFMON_PERFCTR1,
- .evntsel = MSR_ARCH_PERFMON_EVENTSEL1,
-};
-
-static struct wd_ops coreduo_wd_ops = {
- .reserve = single_msr_reserve,
- .unreserve = single_msr_unreserve,
- .setup = setup_intel_arch_watchdog,
- .rearm = p6_rearm,
- .stop = single_msr_stop_watchdog,
- .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
- .evntsel = MSR_ARCH_PERFMON_EVENTSEL0,
-};
-
-static void probe_nmi_watchdog(void)
-{
- switch (boot_cpu_data.x86_vendor) {
- case X86_VENDOR_AMD:
- if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15 &&
- boot_cpu_data.x86 != 16)
- return;
- wd_ops = &k7_wd_ops;
- break;
- case X86_VENDOR_INTEL:
- /* Work around Core Duo (Yonah) errata AE49 where perfctr1
- doesn't have a working enable bit. */
- if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 14) {
- wd_ops = &coreduo_wd_ops;
- break;
- }
- if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) {
- wd_ops = &intel_arch_wd_ops;
- break;
- }
- switch (boot_cpu_data.x86) {
- case 6:
- if (boot_cpu_data.x86_model > 0xd)
- return;
-
- wd_ops = &p6_wd_ops;
- break;
- case 15:
- if (boot_cpu_data.x86_model > 0x4)
- return;
-
- wd_ops = &p4_wd_ops;
- break;
- default:
- return;
- }
- break;
- }
-}
-
-/* Interface to nmi.c */
-
-int lapic_watchdog_init(unsigned nmi_hz)
-{
- if (!wd_ops) {
- probe_nmi_watchdog();
- if (!wd_ops)
- return -1;
-
- if (!wd_ops->reserve()) {
- printk(KERN_ERR
- "NMI watchdog: cannot reserve perfctrs\n");
- return -1;
- }
- }
-
- if (!(wd_ops->setup(nmi_hz))) {
- printk(KERN_ERR "Cannot setup NMI watchdog on CPU %d\n",
- raw_smp_processor_id());
- return -1;
- }
-
- return 0;
-}
-
-void lapic_watchdog_stop(void)
-{
- if (wd_ops)
- wd_ops->stop();
-}
-
-unsigned lapic_adjust_nmi_hz(unsigned hz)
-{
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
- if (wd->perfctr_msr == MSR_P6_PERFCTR0 ||
- wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR1)
- hz = adjust_for_32bit_ctr(hz);
- return hz;
-}
-
-int lapic_wd_event(unsigned nmi_hz)
-{
- struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
- u64 ctr;
- rdmsrl(wd->perfctr_msr, ctr);
- if (ctr & wd_ops->checkbit) { /* perfctr still running? */
- return 0;
- }
- wd_ops->rearm(wd, nmi_hz);
- return 1;
-}
-
-int lapic_watchdog_ok(void)
-{
- return wd_ops != NULL;
-}
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
deleted file mode 100644
index 1e31b6caffb..00000000000
--- a/arch/i386/kernel/cpu/proc.c
+++ /dev/null
@@ -1,192 +0,0 @@
-#include <linux/smp.h>
-#include <linux/timex.h>
-#include <linux/string.h>
-#include <asm/semaphore.h>
-#include <linux/seq_file.h>
-#include <linux/cpufreq.h>
-
-/*
- * Get CPU information for use by the procfs.
- */
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
- /*
- * These flag bits must match the definitions in <asm/cpufeature.h>.
- * NULL means this bit is undefined or reserved; either way it doesn't
- * have meaning as far as Linux is concerned. Note that it's important
- * to realize there is a difference between this table and CPUID -- if
- * applications want to get the raw CPUID data, they should access
- * /dev/cpu/<cpu_nr>/cpuid instead.
- */
- static const char * const x86_cap_flags[] = {
- /* Intel-defined */
- "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
- "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
- "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
- "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
-
- /* AMD-defined */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
- NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
- "3dnowext", "3dnow",
-
- /* Transmeta-defined */
- "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Other (Linux-defined) */
- "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
- NULL, NULL, NULL, NULL,
- "constant_tsc", "up", NULL, "arch_perfmon",
- "pebs", "bts", NULL, "sync_rdtsc",
- "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Intel-defined (#2) */
- "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
- "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
- NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* VIA/Cyrix/Centaur-defined */
- NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
- "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* AMD-defined (#2) */
- "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy",
- "altmovcr8", "abm", "sse4a",
- "misalignsse", "3dnowprefetch",
- "osvw", "ibs", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Auxiliary (Linux-defined) */
- "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- };
- static const char * const x86_power_flags[] = {
- "ts", /* temperature sensor */
- "fid", /* frequency id control */
- "vid", /* voltage id control */
- "ttp", /* thermal trip */
- "tm",
- "stc",
- "100mhzsteps",
- "hwpstate",
- "", /* constant_tsc - moved to flags */
- /* nothing */
- };
- struct cpuinfo_x86 *c = v;
- int i, n = c - cpu_data;
- int fpu_exception;
-
-#ifdef CONFIG_SMP
- if (!cpu_online(n))
- return 0;
-#endif
- seq_printf(m, "processor\t: %d\n"
- "vendor_id\t: %s\n"
- "cpu family\t: %d\n"
- "model\t\t: %d\n"
- "model name\t: %s\n",
- n,
- c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
- c->x86,
- c->x86_model,
- c->x86_model_id[0] ? c->x86_model_id : "unknown");
-
- if (c->x86_mask || c->cpuid_level >= 0)
- seq_printf(m, "stepping\t: %d\n", c->x86_mask);
- else
- seq_printf(m, "stepping\t: unknown\n");
-
- if ( cpu_has(c, X86_FEATURE_TSC) ) {
- unsigned int freq = cpufreq_quick_get(n);
- if (!freq)
- freq = cpu_khz;
- seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
- freq / 1000, (freq % 1000));
- }
-
- /* Cache size */
- if (c->x86_cache_size >= 0)
- seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
-#ifdef CONFIG_X86_HT
- if (c->x86_max_cores * smp_num_siblings > 1) {
- seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
- seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[n]));
- seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
- seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
- }
-#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_fpu_irq || cpu_has_fpu);
- seq_printf(m, "fdiv_bug\t: %s\n"
- "hlt_bug\t\t: %s\n"
- "f00f_bug\t: %s\n"
- "coma_bug\t: %s\n"
- "fpu\t\t: %s\n"
- "fpu_exception\t: %s\n"
- "cpuid level\t: %d\n"
- "wp\t\t: %s\n"
- "flags\t\t:",
- c->fdiv_bug ? "yes" : "no",
- c->hlt_works_ok ? "no" : "yes",
- c->f00f_bug ? "yes" : "no",
- c->coma_bug ? "yes" : "no",
- c->hard_math ? "yes" : "no",
- fpu_exception ? "yes" : "no",
- c->cpuid_level,
- c->wp_works_ok ? "yes" : "no");
-
- for ( i = 0 ; i < 32*NCAPINTS ; i++ )
- if ( test_bit(i, c->x86_capability) &&
- x86_cap_flags[i] != NULL )
- seq_printf(m, " %s", x86_cap_flags[i]);
-
- for (i = 0; i < 32; i++)
- if (c->x86_power & (1 << i)) {
- if (i < ARRAY_SIZE(x86_power_flags) &&
- x86_power_flags[i])
- seq_printf(m, "%s%s",
- x86_power_flags[i][0]?" ":"",
- x86_power_flags[i]);
- else
- seq_printf(m, " [%d]", i);
- }
-
- seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
- c->loops_per_jiffy/(500000/HZ),
- (c->loops_per_jiffy/(5000/HZ)) % 100);
- seq_printf(m, "clflush size\t: %u\n\n", c->x86_clflush_size);
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return *pos < NR_CPUS ? cpu_data + *pos : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return c_start(m, pos);
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = show_cpuinfo,
-};
diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c
deleted file mode 100644
index 200fb3f9ebf..00000000000
--- a/arch/i386/kernel/cpu/transmeta.c
+++ /dev/null
@@ -1,116 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <asm/processor.h>
-#include <asm/msr.h>
-#include "cpu.h"
-
-static void __cpuinit init_transmeta(struct cpuinfo_x86 *c)
-{
- unsigned int cap_mask, uk, max, dummy;
- unsigned int cms_rev1, cms_rev2;
- unsigned int cpu_rev, cpu_freq = 0, cpu_flags, new_cpu_rev;
- char cpu_info[65];
-
- get_model_name(c); /* Same as AMD/Cyrix */
- display_cacheinfo(c);
-
- /* Print CMS and CPU revision */
- max = cpuid_eax(0x80860000);
- cpu_rev = 0;
- if ( max >= 0x80860001 ) {
- cpuid(0x80860001, &dummy, &cpu_rev, &cpu_freq, &cpu_flags);
- if (cpu_rev != 0x02000000) {
- printk(KERN_INFO "CPU: Processor revision %u.%u.%u.%u, %u MHz\n",
- (cpu_rev >> 24) & 0xff,
- (cpu_rev >> 16) & 0xff,
- (cpu_rev >> 8) & 0xff,
- cpu_rev & 0xff,
- cpu_freq);
- }
- }
- if ( max >= 0x80860002 ) {
- cpuid(0x80860002, &new_cpu_rev, &cms_rev1, &cms_rev2, &dummy);
- if (cpu_rev == 0x02000000) {
- printk(KERN_INFO "CPU: Processor revision %08X, %u MHz\n",
- new_cpu_rev, cpu_freq);
- }
- printk(KERN_INFO "CPU: Code Morphing Software revision %u.%u.%u-%u-%u\n",
- (cms_rev1 >> 24) & 0xff,
- (cms_rev1 >> 16) & 0xff,
- (cms_rev1 >> 8) & 0xff,
- cms_rev1 & 0xff,
- cms_rev2);
- }
- if ( max >= 0x80860006 ) {
- cpuid(0x80860003,
- (void *)&cpu_info[0],
- (void *)&cpu_info[4],
- (void *)&cpu_info[8],
- (void *)&cpu_info[12]);
- cpuid(0x80860004,
- (void *)&cpu_info[16],
- (void *)&cpu_info[20],
- (void *)&cpu_info[24],
- (void *)&cpu_info[28]);
- cpuid(0x80860005,
- (void *)&cpu_info[32],
- (void *)&cpu_info[36],
- (void *)&cpu_info[40],
- (void *)&cpu_info[44]);
- cpuid(0x80860006,
- (void *)&cpu_info[48],
- (void *)&cpu_info[52],
- (void *)&cpu_info[56],
- (void *)&cpu_info[60]);
- cpu_info[64] = '\0';
- printk(KERN_INFO "CPU: %s\n", cpu_info);
- }
-
- /* Unhide possibly hidden capability flags */
- rdmsr(0x80860004, cap_mask, uk);
- wrmsr(0x80860004, ~0, uk);
- c->x86_capability[0] = cpuid_edx(0x00000001);
- wrmsr(0x80860004, cap_mask, uk);
-
- /* All Transmeta CPUs have a constant TSC */
- set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
-
- /* If we can run i686 user-space code, call us an i686 */
-#define USER686 ((1 << X86_FEATURE_TSC)|\
- (1 << X86_FEATURE_CX8)|\
- (1 << X86_FEATURE_CMOV))
- if (c->x86 == 5 && (c->x86_capability[0] & USER686) == USER686)
- c->x86 = 6;
-
-#ifdef CONFIG_SYSCTL
- /* randomize_va_space slows us down enormously;
- it probably triggers retranslation of x86->native bytecode */
- randomize_va_space = 0;
-#endif
-}
-
-static void __cpuinit transmeta_identify(struct cpuinfo_x86 * c)
-{
- u32 xlvl;
-
- /* Transmeta-defined flags: level 0x80860001 */
- xlvl = cpuid_eax(0x80860000);
- if ( (xlvl & 0xffff0000) == 0x80860000 ) {
- if ( xlvl >= 0x80860001 )
- c->x86_capability[2] = cpuid_edx(0x80860001);
- }
-}
-
-static struct cpu_dev transmeta_cpu_dev __cpuinitdata = {
- .c_vendor = "Transmeta",
- .c_ident = { "GenuineTMx86", "TransmetaCPU" },
- .c_init = init_transmeta,
- .c_identify = transmeta_identify,
-};
-
-int __init transmeta_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_TRANSMETA] = &transmeta_cpu_dev;
- return 0;
-}
diff --git a/arch/i386/kernel/cpu/umc.c b/arch/i386/kernel/cpu/umc.c
deleted file mode 100644
index a7a4e75bdcd..00000000000
--- a/arch/i386/kernel/cpu/umc.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <asm/processor.h>
-#include "cpu.h"
-
-/* UMC chips appear to be only either 386 or 486, so no special init takes place.
- */
-
-static struct cpu_dev umc_cpu_dev __cpuinitdata = {
- .c_vendor = "UMC",
- .c_ident = { "UMC UMC UMC" },
- .c_models = {
- { .vendor = X86_VENDOR_UMC, .family = 4, .model_names =
- {
- [1] = "U5D",
- [2] = "U5S",
- }
- },
- },
-};
-
-int __init umc_init_cpu(void)
-{
- cpu_devs[X86_VENDOR_UMC] = &umc_cpu_dev;
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 04:20:57 +0000