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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 16:07:55 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 16:07:55 -0400
commitb278240839e20fa9384ea430df463b367b90e04e (patch)
treef99f0c8cdd4cc7f177cd75440e6bd181cded7fb3 /arch/i386/kernel/cpu
parentdd77a4ee0f3981693d4229aa1d57cea9e526ff47 (diff)
parent3f75f42d7733e73aca5c78326489efd4189e0111 (diff)
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits) [PATCH] Don't set calgary iommu as default y [PATCH] i386/x86-64: New Intel feature flags [PATCH] x86: Add a cumulative thermal throttle event counter. [PATCH] i386: Make the jiffies compares use the 64bit safe macros. [PATCH] x86: Refactor thermal throttle processing [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) [PATCH] Fix unwinder warning in traps.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 [PATCH] x86: Move direct PCI scanning functions out of line [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI [PATCH] Don't leak NT bit into next task [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder [PATCH] Fix some broken white space in ia32_signal.c [PATCH] Initialize argument registers for 32bit signal handlers. [PATCH] Remove all traces of signal number conversion [PATCH] Don't synchronize time reading on single core AMD systems [PATCH] Remove outdated comment in x86-64 mmconfig code [PATCH] Use string instructions for Core2 copy/clear [PATCH] x86: - restore i8259A eoi status on resume [PATCH] i386: Split multi-line printk in oops output. ...
Diffstat (limited to 'arch/i386/kernel/cpu')
-rw-r--r--arch/i386/kernel/cpu/amd.c7
-rw-r--r--arch/i386/kernel/cpu/centaur.c24
-rw-r--r--arch/i386/kernel/cpu/common.c8
-rw-r--r--arch/i386/kernel/cpu/cpu.h2
-rw-r--r--arch/i386/kernel/cpu/cyrix.c42
-rw-r--r--arch/i386/kernel/cpu/intel.c3
-rw-r--r--arch/i386/kernel/cpu/mcheck/Makefile2
-rw-r--r--arch/i386/kernel/cpu/mcheck/p4.c26
-rw-r--r--arch/i386/kernel/cpu/mcheck/therm_throt.c180
-rw-r--r--arch/i386/kernel/cpu/nexgen.c9
-rw-r--r--arch/i386/kernel/cpu/proc.c4
-rw-r--r--arch/i386/kernel/cpu/rise.c4
-rw-r--r--arch/i386/kernel/cpu/transmeta.c7
-rw-r--r--arch/i386/kernel/cpu/umc.c7
14 files changed, 242 insertions, 83 deletions
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index e6a2d6b80cda..e4758095d87a 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -22,7 +22,7 @@
22extern void vide(void); 22extern void vide(void);
23__asm__(".align 4\nvide: ret"); 23__asm__(".align 4\nvide: ret");
24 24
25static void __init init_amd(struct cpuinfo_x86 *c) 25static void __cpuinit init_amd(struct cpuinfo_x86 *c)
26{ 26{
27 u32 l, h; 27 u32 l, h;
28 int mbytes = num_physpages >> (20-PAGE_SHIFT); 28 int mbytes = num_physpages >> (20-PAGE_SHIFT);
@@ -246,7 +246,7 @@ static void __init init_amd(struct cpuinfo_x86 *c)
246 num_cache_leaves = 3; 246 num_cache_leaves = 3;
247} 247}
248 248
249static unsigned int amd_size_cache(struct cpuinfo_x86 * c, unsigned int size) 249static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
250{ 250{
251 /* AMD errata T13 (order #21922) */ 251 /* AMD errata T13 (order #21922) */
252 if ((c->x86 == 6)) { 252 if ((c->x86 == 6)) {
@@ -259,7 +259,7 @@ static unsigned int amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
259 return size; 259 return size;
260} 260}
261 261
262static struct cpu_dev amd_cpu_dev __initdata = { 262static struct cpu_dev amd_cpu_dev __cpuinitdata = {
263 .c_vendor = "AMD", 263 .c_vendor = "AMD",
264 .c_ident = { "AuthenticAMD" }, 264 .c_ident = { "AuthenticAMD" },
265 .c_models = { 265 .c_models = {
@@ -275,7 +275,6 @@ static struct cpu_dev amd_cpu_dev __initdata = {
275 }, 275 },
276 }, 276 },
277 .c_init = init_amd, 277 .c_init = init_amd,
278 .c_identify = generic_identify,
279 .c_size_cache = amd_size_cache, 278 .c_size_cache = amd_size_cache,
280}; 279};
281 280
diff --git a/arch/i386/kernel/cpu/centaur.c b/arch/i386/kernel/cpu/centaur.c
index bd75629dd262..8c25047975c0 100644
--- a/arch/i386/kernel/cpu/centaur.c
+++ b/arch/i386/kernel/cpu/centaur.c
@@ -9,7 +9,7 @@
9 9
10#ifdef CONFIG_X86_OOSTORE 10#ifdef CONFIG_X86_OOSTORE
11 11
12static u32 __init power2(u32 x) 12static u32 __cpuinit power2(u32 x)
13{ 13{
14 u32 s=1; 14 u32 s=1;
15 while(s<=x) 15 while(s<=x)
@@ -22,7 +22,7 @@ static u32 __init power2(u32 x)
22 * Set up an actual MCR 22 * Set up an actual MCR
23 */ 23 */
24 24
25static void __init centaur_mcr_insert(int reg, u32 base, u32 size, int key) 25static void __cpuinit centaur_mcr_insert(int reg, u32 base, u32 size, int key)
26{ 26{
27 u32 lo, hi; 27 u32 lo, hi;
28 28
@@ -40,7 +40,7 @@ static void __init centaur_mcr_insert(int reg, u32 base, u32 size, int key)
40 * Shortcut: We know you can't put 4Gig of RAM on a winchip 40 * Shortcut: We know you can't put 4Gig of RAM on a winchip
41 */ 41 */
42 42
43static u32 __init ramtop(void) /* 16388 */ 43static u32 __cpuinit ramtop(void) /* 16388 */
44{ 44{
45 int i; 45 int i;
46 u32 top = 0; 46 u32 top = 0;
@@ -91,7 +91,7 @@ static u32 __init ramtop(void) /* 16388 */
91 * Compute a set of MCR's to give maximum coverage 91 * Compute a set of MCR's to give maximum coverage
92 */ 92 */
93 93
94static int __init centaur_mcr_compute(int nr, int key) 94static int __cpuinit centaur_mcr_compute(int nr, int key)
95{ 95{
96 u32 mem = ramtop(); 96 u32 mem = ramtop();
97 u32 root = power2(mem); 97 u32 root = power2(mem);
@@ -166,7 +166,7 @@ static int __init centaur_mcr_compute(int nr, int key)
166 return ct; 166 return ct;
167} 167}
168 168
169static void __init centaur_create_optimal_mcr(void) 169static void __cpuinit centaur_create_optimal_mcr(void)
170{ 170{
171 int i; 171 int i;
172 /* 172 /*
@@ -189,7 +189,7 @@ static void __init centaur_create_optimal_mcr(void)
189 wrmsr(MSR_IDT_MCR0+i, 0, 0); 189 wrmsr(MSR_IDT_MCR0+i, 0, 0);
190} 190}
191 191
192static void __init winchip2_create_optimal_mcr(void) 192static void __cpuinit winchip2_create_optimal_mcr(void)
193{ 193{
194 u32 lo, hi; 194 u32 lo, hi;
195 int i; 195 int i;
@@ -227,7 +227,7 @@ static void __init winchip2_create_optimal_mcr(void)
227 * Handle the MCR key on the Winchip 2. 227 * Handle the MCR key on the Winchip 2.
228 */ 228 */
229 229
230static void __init winchip2_unprotect_mcr(void) 230static void __cpuinit winchip2_unprotect_mcr(void)
231{ 231{
232 u32 lo, hi; 232 u32 lo, hi;
233 u32 key; 233 u32 key;
@@ -239,7 +239,7 @@ static void __init winchip2_unprotect_mcr(void)
239 wrmsr(MSR_IDT_MCR_CTRL, lo, hi); 239 wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
240} 240}
241 241
242static void __init winchip2_protect_mcr(void) 242static void __cpuinit winchip2_protect_mcr(void)
243{ 243{
244 u32 lo, hi; 244 u32 lo, hi;
245 245
@@ -257,7 +257,7 @@ static void __init winchip2_protect_mcr(void)
257#define RNG_ENABLED (1 << 3) 257#define RNG_ENABLED (1 << 3)
258#define RNG_ENABLE (1 << 6) /* MSR_VIA_RNG */ 258#define RNG_ENABLE (1 << 6) /* MSR_VIA_RNG */
259 259
260static void __init init_c3(struct cpuinfo_x86 *c) 260static void __cpuinit init_c3(struct cpuinfo_x86 *c)
261{ 261{
262 u32 lo, hi; 262 u32 lo, hi;
263 263
@@ -303,7 +303,7 @@ static void __init init_c3(struct cpuinfo_x86 *c)
303 display_cacheinfo(c); 303 display_cacheinfo(c);
304} 304}
305 305
306static void __init init_centaur(struct cpuinfo_x86 *c) 306static void __cpuinit init_centaur(struct cpuinfo_x86 *c)
307{ 307{
308 enum { 308 enum {
309 ECX8=1<<1, 309 ECX8=1<<1,
@@ -442,7 +442,7 @@ static void __init init_centaur(struct cpuinfo_x86 *c)
442 } 442 }
443} 443}
444 444
445static unsigned int centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size) 445static unsigned int __cpuinit centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size)
446{ 446{
447 /* VIA C3 CPUs (670-68F) need further shifting. */ 447 /* VIA C3 CPUs (670-68F) need further shifting. */
448 if ((c->x86 == 6) && ((c->x86_model == 7) || (c->x86_model == 8))) 448 if ((c->x86 == 6) && ((c->x86_model == 7) || (c->x86_model == 8)))
@@ -457,7 +457,7 @@ static unsigned int centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size
457 return size; 457 return size;
458} 458}
459 459
460static struct cpu_dev centaur_cpu_dev __initdata = { 460static struct cpu_dev centaur_cpu_dev __cpuinitdata = {
461 .c_vendor = "Centaur", 461 .c_vendor = "Centaur",
462 .c_ident = { "CentaurHauls" }, 462 .c_ident = { "CentaurHauls" },
463 .c_init = init_centaur, 463 .c_init = init_centaur,
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 70c87de582c7..2799baaadf45 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -36,7 +36,7 @@ struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
36 36
37extern int disable_pse; 37extern int disable_pse;
38 38
39static void default_init(struct cpuinfo_x86 * c) 39static void __cpuinit default_init(struct cpuinfo_x86 * c)
40{ 40{
41 /* Not much we can do here... */ 41 /* Not much we can do here... */
42 /* Check if at least it has cpuid */ 42 /* Check if at least it has cpuid */
@@ -49,7 +49,7 @@ static void default_init(struct cpuinfo_x86 * c)
49 } 49 }
50} 50}
51 51
52static struct cpu_dev default_cpu = { 52static struct cpu_dev __cpuinitdata default_cpu = {
53 .c_init = default_init, 53 .c_init = default_init,
54 .c_vendor = "Unknown", 54 .c_vendor = "Unknown",
55}; 55};
@@ -265,7 +265,7 @@ static void __init early_cpu_detect(void)
265 } 265 }
266} 266}
267 267
268void __cpuinit generic_identify(struct cpuinfo_x86 * c) 268static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
269{ 269{
270 u32 tfms, xlvl; 270 u32 tfms, xlvl;
271 int ebx; 271 int ebx;
@@ -675,7 +675,7 @@ old_gdt:
675#endif 675#endif
676 676
677 /* Clear %fs and %gs. */ 677 /* Clear %fs and %gs. */
678 asm volatile ("xorl %eax, %eax; movl %eax, %fs; movl %eax, %gs"); 678 asm volatile ("movl %0, %%fs; movl %0, %%gs" : : "r" (0));
679 679
680 /* Clear all 6 debug registers: */ 680 /* Clear all 6 debug registers: */
681 set_debugreg(0, 0); 681 set_debugreg(0, 0);
diff --git a/arch/i386/kernel/cpu/cpu.h b/arch/i386/kernel/cpu/cpu.h
index 5a1d4f163e84..2f6432cef6ff 100644
--- a/arch/i386/kernel/cpu/cpu.h
+++ b/arch/i386/kernel/cpu/cpu.h
@@ -24,7 +24,5 @@ extern struct cpu_dev * cpu_devs [X86_VENDOR_NUM];
24extern int get_model_name(struct cpuinfo_x86 *c); 24extern int get_model_name(struct cpuinfo_x86 *c);
25extern void display_cacheinfo(struct cpuinfo_x86 *c); 25extern void display_cacheinfo(struct cpuinfo_x86 *c);
26 26
27extern void generic_identify(struct cpuinfo_x86 * c);
28
29extern void early_intel_workaround(struct cpuinfo_x86 *c); 27extern void early_intel_workaround(struct cpuinfo_x86 *c);
30 28
diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c
index f03b7f94c304..c0c3b59de32c 100644
--- a/arch/i386/kernel/cpu/cyrix.c
+++ b/arch/i386/kernel/cpu/cyrix.c
@@ -12,7 +12,7 @@
12/* 12/*
13 * Read NSC/Cyrix DEVID registers (DIR) to get more detailed info. about the CPU 13 * Read NSC/Cyrix DEVID registers (DIR) to get more detailed info. about the CPU
14 */ 14 */
15static void __init do_cyrix_devid(unsigned char *dir0, unsigned char *dir1) 15static void __cpuinit do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
16{ 16{
17 unsigned char ccr2, ccr3; 17 unsigned char ccr2, ccr3;
18 unsigned long flags; 18 unsigned long flags;
@@ -52,25 +52,25 @@ static void __init do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
52 * Actually since bugs.h doesn't even reference this perhaps someone should 52 * Actually since bugs.h doesn't even reference this perhaps someone should
53 * fix the documentation ??? 53 * fix the documentation ???
54 */ 54 */
55static unsigned char Cx86_dir0_msb __initdata = 0; 55static unsigned char Cx86_dir0_msb __cpuinitdata = 0;
56 56
57static char Cx86_model[][9] __initdata = { 57static char Cx86_model[][9] __cpuinitdata = {
58 "Cx486", "Cx486", "5x86 ", "6x86", "MediaGX ", "6x86MX ", 58 "Cx486", "Cx486", "5x86 ", "6x86", "MediaGX ", "6x86MX ",
59 "M II ", "Unknown" 59 "M II ", "Unknown"
60}; 60};
61static char Cx486_name[][5] __initdata = { 61static char Cx486_name[][5] __cpuinitdata = {
62 "SLC", "DLC", "SLC2", "DLC2", "SRx", "DRx", 62 "SLC", "DLC", "SLC2", "DLC2", "SRx", "DRx",
63 "SRx2", "DRx2" 63 "SRx2", "DRx2"
64}; 64};
65static char Cx486S_name[][4] __initdata = { 65static char Cx486S_name[][4] __cpuinitdata = {
66 "S", "S2", "Se", "S2e" 66 "S", "S2", "Se", "S2e"
67}; 67};
68static char Cx486D_name[][4] __initdata = { 68static char Cx486D_name[][4] __cpuinitdata = {
69 "DX", "DX2", "?", "?", "?", "DX4" 69 "DX", "DX2", "?", "?", "?", "DX4"
70}; 70};
71static char Cx86_cb[] __initdata = "?.5x Core/Bus Clock"; 71static char Cx86_cb[] __cpuinitdata = "?.5x Core/Bus Clock";
72static char cyrix_model_mult1[] __initdata = "12??43"; 72static char cyrix_model_mult1[] __cpuinitdata = "12??43";
73static char cyrix_model_mult2[] __initdata = "12233445"; 73static char cyrix_model_mult2[] __cpuinitdata = "12233445";
74 74
75/* 75/*
76 * Reset the slow-loop (SLOP) bit on the 686(L) which is set by some old 76 * Reset the slow-loop (SLOP) bit on the 686(L) which is set by some old
@@ -82,7 +82,7 @@ static char cyrix_model_mult2[] __initdata = "12233445";
82 82
83extern void calibrate_delay(void) __init; 83extern void calibrate_delay(void) __init;
84 84
85static void __init check_cx686_slop(struct cpuinfo_x86 *c) 85static void __cpuinit check_cx686_slop(struct cpuinfo_x86 *c)
86{ 86{
87 unsigned long flags; 87 unsigned long flags;
88 88
@@ -107,7 +107,7 @@ static void __init check_cx686_slop(struct cpuinfo_x86 *c)
107} 107}
108 108
109 109
110static void __init set_cx86_reorder(void) 110static void __cpuinit set_cx86_reorder(void)
111{ 111{
112 u8 ccr3; 112 u8 ccr3;
113 113
@@ -122,7 +122,7 @@ static void __init set_cx86_reorder(void)
122 setCx86(CX86_CCR3, ccr3); 122 setCx86(CX86_CCR3, ccr3);
123} 123}
124 124
125static void __init set_cx86_memwb(void) 125static void __cpuinit set_cx86_memwb(void)
126{ 126{
127 u32 cr0; 127 u32 cr0;
128 128
@@ -137,7 +137,7 @@ static void __init set_cx86_memwb(void)
137 setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14 ); 137 setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14 );
138} 138}
139 139
140static void __init set_cx86_inc(void) 140static void __cpuinit set_cx86_inc(void)
141{ 141{
142 unsigned char ccr3; 142 unsigned char ccr3;
143 143
@@ -158,7 +158,7 @@ static void __init set_cx86_inc(void)
158 * Configure later MediaGX and/or Geode processor. 158 * Configure later MediaGX and/or Geode processor.
159 */ 159 */
160 160
161static void __init geode_configure(void) 161static void __cpuinit geode_configure(void)
162{ 162{
163 unsigned long flags; 163 unsigned long flags;
164 u8 ccr3, ccr4; 164 u8 ccr3, ccr4;
@@ -184,14 +184,14 @@ static void __init geode_configure(void)
184 184
185 185
186#ifdef CONFIG_PCI 186#ifdef CONFIG_PCI
187static struct pci_device_id __initdata cyrix_55x0[] = { 187static struct pci_device_id __cpuinitdata cyrix_55x0[] = {
188 { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510) }, 188 { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510) },
189 { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520) }, 189 { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520) },
190 { }, 190 { },
191}; 191};
192#endif 192#endif
193 193
194static void __init init_cyrix(struct cpuinfo_x86 *c) 194static void __cpuinit init_cyrix(struct cpuinfo_x86 *c)
195{ 195{
196 unsigned char dir0, dir0_msn, dir0_lsn, dir1 = 0; 196 unsigned char dir0, dir0_msn, dir0_lsn, dir1 = 0;
197 char *buf = c->x86_model_id; 197 char *buf = c->x86_model_id;
@@ -346,7 +346,7 @@ static void __init init_cyrix(struct cpuinfo_x86 *c)
346/* 346/*
347 * Handle National Semiconductor branded processors 347 * Handle National Semiconductor branded processors
348 */ 348 */
349static void __init init_nsc(struct cpuinfo_x86 *c) 349static void __cpuinit init_nsc(struct cpuinfo_x86 *c)
350{ 350{
351 /* There may be GX1 processors in the wild that are branded 351 /* There may be GX1 processors in the wild that are branded
352 * NSC and not Cyrix. 352 * NSC and not Cyrix.
@@ -394,7 +394,7 @@ static inline int test_cyrix_52div(void)
394 return (unsigned char) (test >> 8) == 0x02; 394 return (unsigned char) (test >> 8) == 0x02;
395} 395}
396 396
397static void cyrix_identify(struct cpuinfo_x86 * c) 397static void __cpuinit cyrix_identify(struct cpuinfo_x86 * c)
398{ 398{
399 /* Detect Cyrix with disabled CPUID */ 399 /* Detect Cyrix with disabled CPUID */
400 if ( c->x86 == 4 && test_cyrix_52div() ) { 400 if ( c->x86 == 4 && test_cyrix_52div() ) {
@@ -427,10 +427,9 @@ static void cyrix_identify(struct cpuinfo_x86 * c)
427 local_irq_restore(flags); 427 local_irq_restore(flags);
428 } 428 }
429 } 429 }
430 generic_identify(c);
431} 430}
432 431
433static struct cpu_dev cyrix_cpu_dev __initdata = { 432static struct cpu_dev cyrix_cpu_dev __cpuinitdata = {
434 .c_vendor = "Cyrix", 433 .c_vendor = "Cyrix",
435 .c_ident = { "CyrixInstead" }, 434 .c_ident = { "CyrixInstead" },
436 .c_init = init_cyrix, 435 .c_init = init_cyrix,
@@ -453,11 +452,10 @@ static int __init cyrix_exit_cpu(void)
453 452
454late_initcall(cyrix_exit_cpu); 453late_initcall(cyrix_exit_cpu);
455 454
456static struct cpu_dev nsc_cpu_dev __initdata = { 455static struct cpu_dev nsc_cpu_dev __cpuinitdata = {
457 .c_vendor = "NSC", 456 .c_vendor = "NSC",
458 .c_ident = { "Geode by NSC" }, 457 .c_ident = { "Geode by NSC" },
459 .c_init = init_nsc, 458 .c_init = init_nsc,
460 .c_identify = generic_identify,
461}; 459};
462 460
463int __init nsc_init_cpu(void) 461int __init nsc_init_cpu(void)
diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c
index 5a2e270924b1..94a95aa5227e 100644
--- a/arch/i386/kernel/cpu/intel.c
+++ b/arch/i386/kernel/cpu/intel.c
@@ -198,7 +198,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
198} 198}
199 199
200 200
201static unsigned int intel_size_cache(struct cpuinfo_x86 * c, unsigned int size) 201static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 * c, unsigned int size)
202{ 202{
203 /* Intel PIII Tualatin. This comes in two flavours. 203 /* Intel PIII Tualatin. This comes in two flavours.
204 * One has 256kb of cache, the other 512. We have no way 204 * One has 256kb of cache, the other 512. We have no way
@@ -263,7 +263,6 @@ static struct cpu_dev intel_cpu_dev __cpuinitdata = {
263 }, 263 },
264 }, 264 },
265 .c_init = init_intel, 265 .c_init = init_intel,
266 .c_identify = generic_identify,
267 .c_size_cache = intel_size_cache, 266 .c_size_cache = intel_size_cache,
268}; 267};
269 268
diff --git a/arch/i386/kernel/cpu/mcheck/Makefile b/arch/i386/kernel/cpu/mcheck/Makefile
index 30808f3d6715..f1ebe1c1c17a 100644
--- a/arch/i386/kernel/cpu/mcheck/Makefile
+++ b/arch/i386/kernel/cpu/mcheck/Makefile
@@ -1,2 +1,2 @@
1obj-y = mce.o k7.o p4.o p5.o p6.o winchip.o 1obj-y = mce.o k7.o p4.o p5.o p6.o winchip.o therm_throt.o
2obj-$(CONFIG_X86_MCE_NONFATAL) += non-fatal.o 2obj-$(CONFIG_X86_MCE_NONFATAL) += non-fatal.o
diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c
index b95f1b3d53aa..504434a46011 100644
--- a/arch/i386/kernel/cpu/mcheck/p4.c
+++ b/arch/i386/kernel/cpu/mcheck/p4.c
@@ -13,6 +13,8 @@
13#include <asm/msr.h> 13#include <asm/msr.h>
14#include <asm/apic.h> 14#include <asm/apic.h>
15 15
16#include <asm/therm_throt.h>
17
16#include "mce.h" 18#include "mce.h"
17 19
18/* as supported by the P4/Xeon family */ 20/* as supported by the P4/Xeon family */
@@ -44,25 +46,12 @@ static void unexpected_thermal_interrupt(struct pt_regs *regs)
44/* P4/Xeon Thermal transition interrupt handler */ 46/* P4/Xeon Thermal transition interrupt handler */
45static void intel_thermal_interrupt(struct pt_regs *regs) 47static void intel_thermal_interrupt(struct pt_regs *regs)
46{ 48{
47 u32 l, h; 49 __u64 msr_val;
48 unsigned int cpu = smp_processor_id();
49 static unsigned long next[NR_CPUS];
50 50
51 ack_APIC_irq(); 51 ack_APIC_irq();
52 52
53 if (time_after(next[cpu], jiffies)) 53 rdmsrl(MSR_IA32_THERM_STATUS, msr_val);
54 return; 54 therm_throt_process(msr_val & 0x1);
55
56 next[cpu] = jiffies + HZ*5;
57 rdmsr(MSR_IA32_THERM_STATUS, l, h);
58 if (l & 0x1) {
59 printk(KERN_EMERG "CPU%d: Temperature above threshold\n", cpu);
60 printk(KERN_EMERG "CPU%d: Running in modulated clock mode\n",
61 cpu);
62 add_taint(TAINT_MACHINE_CHECK);
63 } else {
64 printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu);
65 }
66} 55}
67 56
68/* Thermal interrupt handler for this CPU setup */ 57/* Thermal interrupt handler for this CPU setup */
@@ -122,10 +111,13 @@ static void intel_init_thermal(struct cpuinfo_x86 *c)
122 111
123 rdmsr (MSR_IA32_MISC_ENABLE, l, h); 112 rdmsr (MSR_IA32_MISC_ENABLE, l, h);
124 wrmsr (MSR_IA32_MISC_ENABLE, l | (1<<3), h); 113 wrmsr (MSR_IA32_MISC_ENABLE, l | (1<<3), h);
125 114
126 l = apic_read (APIC_LVTTHMR); 115 l = apic_read (APIC_LVTTHMR);
127 apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED); 116 apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED);
128 printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu); 117 printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu);
118
119 /* enable thermal throttle processing */
120 atomic_set(&therm_throt_en, 1);
129 return; 121 return;
130} 122}
131#endif /* CONFIG_X86_MCE_P4THERMAL */ 123#endif /* CONFIG_X86_MCE_P4THERMAL */
diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c
new file mode 100644
index 000000000000..4f43047de406
--- /dev/null
+++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c
@@ -0,0 +1,180 @@
1/*
2 * linux/arch/i386/kerne/cpu/mcheck/therm_throt.c
3 *
4 * Thermal throttle event support code (such as syslog messaging and rate
5 * limiting) that was factored out from x86_64 (mce_intel.c) and i386 (p4.c).
6 * This allows consistent reporting of CPU thermal throttle events.
7 *
8 * Maintains a counter in /sys that keeps track of the number of thermal
9 * events, such that the user knows how bad the thermal problem might be
10 * (since the logging to syslog and mcelog is rate limited).
11 *
12 * Author: Dmitriy Zavin (dmitriyz@google.com)
13 *
14 * Credits: Adapted from Zwane Mwaikambo's original code in mce_intel.c.
15 * Inspired by Ross Biro's and Al Borchers' counter code.
16 */
17
18#include <linux/percpu.h>
19#include <linux/sysdev.h>
20#include <linux/cpu.h>
21#include <asm/cpu.h>
22#include <linux/notifier.h>
23#include <asm/therm_throt.h>
24
25/* How long to wait between reporting thermal events */
26#define CHECK_INTERVAL (300 * HZ)
27
28static DEFINE_PER_CPU(__u64, next_check) = INITIAL_JIFFIES;
29static DEFINE_PER_CPU(unsigned long, thermal_throttle_count);
30atomic_t therm_throt_en = ATOMIC_INIT(0);
31
32#ifdef CONFIG_SYSFS
33#define define_therm_throt_sysdev_one_ro(_name) \
34 static SYSDEV_ATTR(_name, 0444, therm_throt_sysdev_show_##_name, NULL)
35
36#define define_therm_throt_sysdev_show_func(name) \
37static ssize_t therm_throt_sysdev_show_##name(struct sys_device *dev, \
38 char *buf) \
39{ \
40 unsigned int cpu = dev->id; \
41 ssize_t ret; \
42 \
43 preempt_disable(); /* CPU hotplug */ \
44 if (cpu_online(cpu)) \
45 ret = sprintf(buf, "%lu\n", \
46 per_cpu(thermal_throttle_##name, cpu)); \
47 else \
48 ret = 0; \
49 preempt_enable(); \
50 \
51 return ret; \
52}
53
54define_therm_throt_sysdev_show_func(count);
55define_therm_throt_sysdev_one_ro(count);
56
57static struct attribute *thermal_throttle_attrs[] = {
58 &attr_count.attr,
59 NULL
60};
61
62static struct attribute_group thermal_throttle_attr_group = {
63 .attrs = thermal_throttle_attrs,
64 .name = "thermal_throttle"
65};
66#endif /* CONFIG_SYSFS */
67
68/***
69 * therm_throt_process - Process thermal throttling event from interrupt
70 * @curr: Whether the condition is current or not (boolean), since the
71 * thermal interrupt normally gets called both when the thermal
72 * event begins and once the event has ended.
73 *
74 * This function is called by the thermal interrupt after the
75 * IRQ has been acknowledged.
76 *
77 * It will take care of rate limiting and printing messages to the syslog.
78 *
79 * Returns: 0 : Event should NOT be further logged, i.e. still in
80 * "timeout" from previous log message.
81 * 1 : Event should be logged further, and a message has been
82 * printed to the syslog.
83 */
84int therm_throt_process(int curr)
85{
86 unsigned int cpu = smp_processor_id();
87 __u64 tmp_jiffs = get_jiffies_64();
88
89 if (curr)
90 __get_cpu_var(thermal_throttle_count)++;
91
92 if (time_before64(tmp_jiffs, __get_cpu_var(next_check)))
93 return 0;
94
95 __get_cpu_var(next_check) = tmp_jiffs + CHECK_INTERVAL;
96
97 /* if we just entered the thermal event */
98 if (curr) {
99 printk(KERN_CRIT "CPU%d: Temperature above threshold, "
100 "cpu clock throttled (total events = %lu)\n", cpu,
101 __get_cpu_var(thermal_throttle_count));
102
103 add_taint(TAINT_MACHINE_CHECK);
104 } else {
105 printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu);
106 }
107
108 return 1;
109}
110
111#ifdef CONFIG_SYSFS
112/* Add/Remove thermal_throttle interface for CPU device */
113static __cpuinit int thermal_throttle_add_dev(struct sys_device * sys_dev)
114{
115 sysfs_create_group(&sys_dev->kobj, &thermal_throttle_attr_group);
116 return 0;
117}
118
119#ifdef CONFIG_HOTPLUG_CPU
120static __cpuinit int thermal_throttle_remove_dev(struct sys_device * sys_dev)
121{
122 sysfs_remove_group(&sys_dev->kobj, &thermal_throttle_attr_group);
123 return 0;
124}
125
126/* Mutex protecting device creation against CPU hotplug */
127static DEFINE_MUTEX(therm_cpu_lock);
128
129/* Get notified when a cpu comes on/off. Be hotplug friendly. */
130static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb,
131 unsigned long action,
132 void *hcpu)
133{
134 unsigned int cpu = (unsigned long)hcpu;
135 struct sys_device *sys_dev;
136
137 sys_dev = get_cpu_sysdev(cpu);
138 mutex_lock(&therm_cpu_lock);
139 switch (action) {
140 case CPU_ONLINE:
141 thermal_throttle_add_dev(sys_dev);
142 break;
143 case CPU_DEAD:
144 thermal_throttle_remove_dev(sys_dev);
145 break;
146 }
147 mutex_unlock(&therm_cpu_lock);
148 return NOTIFY_OK;
149}
150
151static struct notifier_block thermal_throttle_cpu_notifier =
152{
153 .notifier_call = thermal_throttle_cpu_callback,
154};
155#endif /* CONFIG_HOTPLUG_CPU */
156
157static __init int thermal_throttle_init_device(void)
158{
159 unsigned int cpu = 0;
160
161 if (!atomic_read(&therm_throt_en))
162 return 0;
163
164 register_hotcpu_notifier(&thermal_throttle_cpu_notifier);
165
166#ifdef CONFIG_HOTPLUG_CPU
167 mutex_lock(&therm_cpu_lock);
168#endif
169 /* connect live CPUs to sysfs */
170 for_each_online_cpu(cpu)
171 thermal_throttle_add_dev(get_cpu_sysdev(cpu));
172#ifdef CONFIG_HOTPLUG_CPU
173 mutex_unlock(&therm_cpu_lock);
174#endif
175
176 return 0;
177}
178
179device_initcall(thermal_throttle_init_device);
180#endif /* CONFIG_SYSFS */
diff --git a/arch/i386/kernel/cpu/nexgen.c b/arch/i386/kernel/cpu/nexgen.c
index ad87fa58058d..8bf23cc80c63 100644
--- a/arch/i386/kernel/cpu/nexgen.c
+++ b/arch/i386/kernel/cpu/nexgen.c
@@ -10,7 +10,7 @@
10 * to have CPUID. (Thanks to Herbert Oppmann) 10 * to have CPUID. (Thanks to Herbert Oppmann)
11 */ 11 */
12 12
13static int __init deep_magic_nexgen_probe(void) 13static int __cpuinit deep_magic_nexgen_probe(void)
14{ 14{
15 int ret; 15 int ret;
16 16
@@ -27,21 +27,20 @@ static int __init deep_magic_nexgen_probe(void)
27 return ret; 27 return ret;
28} 28}
29 29
30static void __init init_nexgen(struct cpuinfo_x86 * c) 30static void __cpuinit init_nexgen(struct cpuinfo_x86 * c)
31{ 31{
32 c->x86_cache_size = 256; /* A few had 1 MB... */ 32 c->x86_cache_size = 256; /* A few had 1 MB... */
33} 33}
34 34
35static void __init nexgen_identify(struct cpuinfo_x86 * c) 35static void __cpuinit nexgen_identify(struct cpuinfo_x86 * c)
36{ 36{
37 /* Detect NexGen with old hypercode */ 37 /* Detect NexGen with old hypercode */
38 if ( deep_magic_nexgen_probe() ) { 38 if ( deep_magic_nexgen_probe() ) {
39 strcpy(c->x86_vendor_id, "NexGenDriven"); 39 strcpy(c->x86_vendor_id, "NexGenDriven");
40 } 40 }
41 generic_identify(c);
42} 41}
43 42
44static struct cpu_dev nexgen_cpu_dev __initdata = { 43static struct cpu_dev nexgen_cpu_dev __cpuinitdata = {
45 .c_vendor = "Nexgen", 44 .c_vendor = "Nexgen",
46 .c_ident = { "NexGenDriven" }, 45 .c_ident = { "NexGenDriven" },
47 .c_models = { 46 .c_models = {
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index f54a15268ed7..76aac088a323 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -46,8 +46,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
46 46
47 /* Intel-defined (#2) */ 47 /* Intel-defined (#2) */
48 "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", 48 "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
49 "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL, 49 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
50 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 50 NULL, NULL, "dca", NULL, NULL, NULL, NULL, NULL,
51 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 51 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
52 52
53 /* VIA/Cyrix/Centaur-defined */ 53 /* VIA/Cyrix/Centaur-defined */
diff --git a/arch/i386/kernel/cpu/rise.c b/arch/i386/kernel/cpu/rise.c
index d08d5a2811c8..9317f7414989 100644
--- a/arch/i386/kernel/cpu/rise.c
+++ b/arch/i386/kernel/cpu/rise.c
@@ -5,7 +5,7 @@
5 5
6#include "cpu.h" 6#include "cpu.h"
7 7
8static void __init init_rise(struct cpuinfo_x86 *c) 8static void __cpuinit init_rise(struct cpuinfo_x86 *c)
9{ 9{
10 printk("CPU: Rise iDragon"); 10 printk("CPU: Rise iDragon");
11 if (c->x86_model > 2) 11 if (c->x86_model > 2)
@@ -28,7 +28,7 @@ static void __init init_rise(struct cpuinfo_x86 *c)
28 set_bit(X86_FEATURE_CX8, c->x86_capability); 28 set_bit(X86_FEATURE_CX8, c->x86_capability);
29} 29}
30 30
31static struct cpu_dev rise_cpu_dev __initdata = { 31static struct cpu_dev rise_cpu_dev __cpuinitdata = {
32 .c_vendor = "Rise", 32 .c_vendor = "Rise",
33 .c_ident = { "RiseRiseRise" }, 33 .c_ident = { "RiseRiseRise" },
34 .c_models = { 34 .c_models = {
diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c
index 7214c9b577ab..4056fb7d2cdf 100644
--- a/arch/i386/kernel/cpu/transmeta.c
+++ b/arch/i386/kernel/cpu/transmeta.c
@@ -5,7 +5,7 @@
5#include <asm/msr.h> 5#include <asm/msr.h>
6#include "cpu.h" 6#include "cpu.h"
7 7
8static void __init init_transmeta(struct cpuinfo_x86 *c) 8static void __cpuinit init_transmeta(struct cpuinfo_x86 *c)
9{ 9{
10 unsigned int cap_mask, uk, max, dummy; 10 unsigned int cap_mask, uk, max, dummy;
11 unsigned int cms_rev1, cms_rev2; 11 unsigned int cms_rev1, cms_rev2;
@@ -85,10 +85,9 @@ static void __init init_transmeta(struct cpuinfo_x86 *c)
85#endif 85#endif
86} 86}
87 87
88static void __init transmeta_identify(struct cpuinfo_x86 * c) 88static void __cpuinit transmeta_identify(struct cpuinfo_x86 * c)
89{ 89{
90 u32 xlvl; 90 u32 xlvl;
91 generic_identify(c);
92 91
93 /* Transmeta-defined flags: level 0x80860001 */ 92 /* Transmeta-defined flags: level 0x80860001 */
94 xlvl = cpuid_eax(0x80860000); 93 xlvl = cpuid_eax(0x80860000);
@@ -98,7 +97,7 @@ static void __init transmeta_identify(struct cpuinfo_x86 * c)
98 } 97 }
99} 98}
100 99
101static struct cpu_dev transmeta_cpu_dev __initdata = { 100static struct cpu_dev transmeta_cpu_dev __cpuinitdata = {
102 .c_vendor = "Transmeta", 101 .c_vendor = "Transmeta",
103 .c_ident = { "GenuineTMx86", "TransmetaCPU" }, 102 .c_ident = { "GenuineTMx86", "TransmetaCPU" },
104 .c_init = init_transmeta, 103 .c_init = init_transmeta,
diff --git a/arch/i386/kernel/cpu/umc.c b/arch/i386/kernel/cpu/umc.c
index 2cd988f6dc55..1bf3f87e9c5b 100644
--- a/arch/i386/kernel/cpu/umc.c
+++ b/arch/i386/kernel/cpu/umc.c
@@ -5,12 +5,8 @@
5 5
6/* UMC chips appear to be only either 386 or 486, so no special init takes place. 6/* UMC chips appear to be only either 386 or 486, so no special init takes place.
7 */ 7 */
8static void __init init_umc(struct cpuinfo_x86 * c)
9{
10
11}
12 8
13static struct cpu_dev umc_cpu_dev __initdata = { 9static struct cpu_dev umc_cpu_dev __cpuinitdata = {
14 .c_vendor = "UMC", 10 .c_vendor = "UMC",
15 .c_ident = { "UMC UMC UMC" }, 11 .c_ident = { "UMC UMC UMC" },
16 .c_models = { 12 .c_models = {
@@ -21,7 +17,6 @@ static struct cpu_dev umc_cpu_dev __initdata = {
21 } 17 }
22 }, 18 },
23 }, 19 },
24 .c_init = init_umc,
25}; 20};
26 21
27int __init umc_init_cpu(void) 22int __init umc_init_cpu(void)