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-rw-r--r--include/asm-i386/msr.h400
1 files changed, 117 insertions, 283 deletions
diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h
index 2ad3f30b1a68..9559894c7658 100644
--- a/include/asm-i386/msr.h
+++ b/include/asm-i386/msr.h
@@ -1,6 +1,79 @@
1#ifndef __ASM_MSR_H 1#ifndef __ASM_MSR_H
2#define __ASM_MSR_H 2#define __ASM_MSR_H
3 3
4#include <asm/msr-index.h>
5
6#ifdef __KERNEL__
7#ifndef __ASSEMBLY__
8
9#include <asm/errno.h>
10
11static inline unsigned long long native_read_msr(unsigned int msr)
12{
13 unsigned long long val;
14
15 asm volatile("rdmsr" : "=A" (val) : "c" (msr));
16 return val;
17}
18
19static inline unsigned long long native_read_msr_safe(unsigned int msr,
20 int *err)
21{
22 unsigned long long val;
23
24 asm volatile("2: rdmsr ; xorl %0,%0\n"
25 "1:\n\t"
26 ".section .fixup,\"ax\"\n\t"
27 "3: movl %3,%0 ; jmp 1b\n\t"
28 ".previous\n\t"
29 ".section __ex_table,\"a\"\n"
30 " .align 4\n\t"
31 " .long 2b,3b\n\t"
32 ".previous"
33 : "=r" (*err), "=A" (val)
34 : "c" (msr), "i" (-EFAULT));
35
36 return val;
37}
38
39static inline void native_write_msr(unsigned int msr, unsigned long long val)
40{
41 asm volatile("wrmsr" : : "c" (msr), "A"(val));
42}
43
44static inline int native_write_msr_safe(unsigned int msr,
45 unsigned long long val)
46{
47 int err;
48 asm volatile("2: wrmsr ; xorl %0,%0\n"
49 "1:\n\t"
50 ".section .fixup,\"ax\"\n\t"
51 "3: movl %4,%0 ; jmp 1b\n\t"
52 ".previous\n\t"
53 ".section __ex_table,\"a\"\n"
54 " .align 4\n\t"
55 " .long 2b,3b\n\t"
56 ".previous"
57 : "=a" (err)
58 : "c" (msr), "0" ((u32)val), "d" ((u32)(val>>32)),
59 "i" (-EFAULT));
60 return err;
61}
62
63static inline unsigned long long native_read_tsc(void)
64{
65 unsigned long long val;
66 asm volatile("rdtsc" : "=A" (val));
67 return val;
68}
69
70static inline unsigned long long native_read_pmc(void)
71{
72 unsigned long long val;
73 asm volatile("rdpmc" : "=A" (val));
74 return val;
75}
76
4#ifdef CONFIG_PARAVIRT 77#ifdef CONFIG_PARAVIRT
5#include <asm/paravirt.h> 78#include <asm/paravirt.h>
6#else 79#else
@@ -11,22 +84,20 @@
11 * pointer indirection), this allows gcc to optimize better 84 * pointer indirection), this allows gcc to optimize better
12 */ 85 */
13 86
14#define rdmsr(msr,val1,val2) \ 87#define rdmsr(msr,val1,val2) \
15 __asm__ __volatile__("rdmsr" \ 88 do { \
16 : "=a" (val1), "=d" (val2) \ 89 unsigned long long __val = native_read_msr(msr); \
17 : "c" (msr)) 90 val1 = __val; \
91 val2 = __val >> 32; \
92 } while(0)
18 93
19#define wrmsr(msr,val1,val2) \ 94#define wrmsr(msr,val1,val2) \
20 __asm__ __volatile__("wrmsr" \ 95 native_write_msr(msr, ((unsigned long long)val2 << 32) | val1)
21 : /* no outputs */ \
22 : "c" (msr), "a" (val1), "d" (val2))
23 96
24#define rdmsrl(msr,val) do { \ 97#define rdmsrl(msr,val) \
25 unsigned long l__,h__; \ 98 do { \
26 rdmsr (msr, l__, h__); \ 99 (val) = native_read_msr(msr); \
27 val = l__; \ 100 } while(0)
28 val |= ((u64)h__<<32); \
29} while(0)
30 101
31static inline void wrmsrl (unsigned long msr, unsigned long long val) 102static inline void wrmsrl (unsigned long msr, unsigned long long val)
32{ 103{
@@ -37,50 +108,41 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val)
37} 108}
38 109
39/* wrmsr with exception handling */ 110/* wrmsr with exception handling */
40#define wrmsr_safe(msr,a,b) ({ int ret__; \ 111#define wrmsr_safe(msr,val1,val2) \
41 asm volatile("2: wrmsr ; xorl %0,%0\n" \ 112 (native_write_msr_safe(msr, ((unsigned long long)val2 << 32) | val1))
42 "1:\n\t" \
43 ".section .fixup,\"ax\"\n\t" \
44 "3: movl %4,%0 ; jmp 1b\n\t" \
45 ".previous\n\t" \
46 ".section __ex_table,\"a\"\n" \
47 " .align 4\n\t" \
48 " .long 2b,3b\n\t" \
49 ".previous" \
50 : "=a" (ret__) \
51 : "c" (msr), "0" (a), "d" (b), "i" (-EFAULT));\
52 ret__; })
53 113
54/* rdmsr with exception handling */ 114/* rdmsr with exception handling */
55#define rdmsr_safe(msr,a,b) ({ int ret__; \ 115#define rdmsr_safe(msr,p1,p2) \
56 asm volatile("2: rdmsr ; xorl %0,%0\n" \ 116 ({ \
57 "1:\n\t" \ 117 int __err; \
58 ".section .fixup,\"ax\"\n\t" \ 118 unsigned long long __val = native_read_msr_safe(msr, &__err);\
59 "3: movl %4,%0 ; jmp 1b\n\t" \ 119 (*p1) = __val; \
60 ".previous\n\t" \ 120 (*p2) = __val >> 32; \
61 ".section __ex_table,\"a\"\n" \ 121 __err; \
62 " .align 4\n\t" \ 122 })
63 " .long 2b,3b\n\t" \ 123
64 ".previous" \ 124#define rdtsc(low,high) \
65 : "=r" (ret__), "=a" (*(a)), "=d" (*(b)) \ 125 do { \
66 : "c" (msr), "i" (-EFAULT));\ 126 u64 _l = native_read_tsc(); \
67 ret__; }) 127 (low) = (u32)_l; \
68 128 (high) = _l >> 32; \
69#define rdtsc(low,high) \ 129 } while(0)
70 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high)) 130
71 131#define rdtscl(low) \
72#define rdtscl(low) \ 132 do { \
73 __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx") 133 (low) = native_read_tsc(); \
74 134 } while(0)
75#define rdtscll(val) \ 135
76 __asm__ __volatile__("rdtsc" : "=A" (val)) 136#define rdtscll(val) ((val) = native_read_tsc())
77 137
78#define write_tsc(val1,val2) wrmsr(0x10, val1, val2) 138#define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
79 139
80#define rdpmc(counter,low,high) \ 140#define rdpmc(counter,low,high) \
81 __asm__ __volatile__("rdpmc" \ 141 do { \
82 : "=a" (low), "=d" (high) \ 142 u64 _l = native_read_pmc(); \
83 : "c" (counter)) 143 low = (u32)_l; \
144 high = _l >> 32; \
145 } while(0)
84#endif /* !CONFIG_PARAVIRT */ 146#endif /* !CONFIG_PARAVIRT */
85 147
86#ifdef CONFIG_SMP 148#ifdef CONFIG_SMP
@@ -96,234 +158,6 @@ static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
96 wrmsr(msr_no, l, h); 158 wrmsr(msr_no, l, h);
97} 159}
98#endif /* CONFIG_SMP */ 160#endif /* CONFIG_SMP */
99 161#endif
100/* symbolic names for some interesting MSRs */ 162#endif
101/* Intel defined MSRs. */
102#define MSR_IA32_P5_MC_ADDR 0
103#define MSR_IA32_P5_MC_TYPE 1
104#define MSR_IA32_PLATFORM_ID 0x17
105#define MSR_IA32_EBL_CR_POWERON 0x2a
106
107#define MSR_IA32_APICBASE 0x1b
108#define MSR_IA32_APICBASE_BSP (1<<8)
109#define MSR_IA32_APICBASE_ENABLE (1<<11)
110#define MSR_IA32_APICBASE_BASE (0xfffff<<12)
111
112#define MSR_IA32_UCODE_WRITE 0x79
113#define MSR_IA32_UCODE_REV 0x8b
114
115#define MSR_P6_PERFCTR0 0xc1
116#define MSR_P6_PERFCTR1 0xc2
117#define MSR_FSB_FREQ 0xcd
118
119
120#define MSR_IA32_BBL_CR_CTL 0x119
121
122#define MSR_IA32_SYSENTER_CS 0x174
123#define MSR_IA32_SYSENTER_ESP 0x175
124#define MSR_IA32_SYSENTER_EIP 0x176
125
126#define MSR_IA32_MCG_CAP 0x179
127#define MSR_IA32_MCG_STATUS 0x17a
128#define MSR_IA32_MCG_CTL 0x17b
129
130/* P4/Xeon+ specific */
131#define MSR_IA32_MCG_EAX 0x180
132#define MSR_IA32_MCG_EBX 0x181
133#define MSR_IA32_MCG_ECX 0x182
134#define MSR_IA32_MCG_EDX 0x183
135#define MSR_IA32_MCG_ESI 0x184
136#define MSR_IA32_MCG_EDI 0x185
137#define MSR_IA32_MCG_EBP 0x186
138#define MSR_IA32_MCG_ESP 0x187
139#define MSR_IA32_MCG_EFLAGS 0x188
140#define MSR_IA32_MCG_EIP 0x189
141#define MSR_IA32_MCG_RESERVED 0x18A
142
143#define MSR_P6_EVNTSEL0 0x186
144#define MSR_P6_EVNTSEL1 0x187
145
146#define MSR_IA32_PERF_STATUS 0x198
147#define MSR_IA32_PERF_CTL 0x199
148
149#define MSR_IA32_MPERF 0xE7
150#define MSR_IA32_APERF 0xE8
151
152#define MSR_IA32_THERM_CONTROL 0x19a
153#define MSR_IA32_THERM_INTERRUPT 0x19b
154#define MSR_IA32_THERM_STATUS 0x19c
155#define MSR_IA32_MISC_ENABLE 0x1a0
156
157#define MSR_IA32_DEBUGCTLMSR 0x1d9
158#define MSR_IA32_LASTBRANCHFROMIP 0x1db
159#define MSR_IA32_LASTBRANCHTOIP 0x1dc
160#define MSR_IA32_LASTINTFROMIP 0x1dd
161#define MSR_IA32_LASTINTTOIP 0x1de
162
163#define MSR_IA32_MC0_CTL 0x400
164#define MSR_IA32_MC0_STATUS 0x401
165#define MSR_IA32_MC0_ADDR 0x402
166#define MSR_IA32_MC0_MISC 0x403
167
168#define MSR_IA32_PEBS_ENABLE 0x3f1
169#define MSR_IA32_DS_AREA 0x600
170#define MSR_IA32_PERF_CAPABILITIES 0x345
171
172/* Pentium IV performance counter MSRs */
173#define MSR_P4_BPU_PERFCTR0 0x300
174#define MSR_P4_BPU_PERFCTR1 0x301
175#define MSR_P4_BPU_PERFCTR2 0x302
176#define MSR_P4_BPU_PERFCTR3 0x303
177#define MSR_P4_MS_PERFCTR0 0x304
178#define MSR_P4_MS_PERFCTR1 0x305
179#define MSR_P4_MS_PERFCTR2 0x306
180#define MSR_P4_MS_PERFCTR3 0x307
181#define MSR_P4_FLAME_PERFCTR0 0x308
182#define MSR_P4_FLAME_PERFCTR1 0x309
183#define MSR_P4_FLAME_PERFCTR2 0x30a
184#define MSR_P4_FLAME_PERFCTR3 0x30b
185#define MSR_P4_IQ_PERFCTR0 0x30c
186#define MSR_P4_IQ_PERFCTR1 0x30d
187#define MSR_P4_IQ_PERFCTR2 0x30e
188#define MSR_P4_IQ_PERFCTR3 0x30f
189#define MSR_P4_IQ_PERFCTR4 0x310
190#define MSR_P4_IQ_PERFCTR5 0x311
191#define MSR_P4_BPU_CCCR0 0x360
192#define MSR_P4_BPU_CCCR1 0x361
193#define MSR_P4_BPU_CCCR2 0x362
194#define MSR_P4_BPU_CCCR3 0x363
195#define MSR_P4_MS_CCCR0 0x364
196#define MSR_P4_MS_CCCR1 0x365
197#define MSR_P4_MS_CCCR2 0x366
198#define MSR_P4_MS_CCCR3 0x367
199#define MSR_P4_FLAME_CCCR0 0x368
200#define MSR_P4_FLAME_CCCR1 0x369
201#define MSR_P4_FLAME_CCCR2 0x36a
202#define MSR_P4_FLAME_CCCR3 0x36b
203#define MSR_P4_IQ_CCCR0 0x36c
204#define MSR_P4_IQ_CCCR1 0x36d
205#define MSR_P4_IQ_CCCR2 0x36e
206#define MSR_P4_IQ_CCCR3 0x36f
207#define MSR_P4_IQ_CCCR4 0x370
208#define MSR_P4_IQ_CCCR5 0x371
209#define MSR_P4_ALF_ESCR0 0x3ca
210#define MSR_P4_ALF_ESCR1 0x3cb
211#define MSR_P4_BPU_ESCR0 0x3b2
212#define MSR_P4_BPU_ESCR1 0x3b3
213#define MSR_P4_BSU_ESCR0 0x3a0
214#define MSR_P4_BSU_ESCR1 0x3a1
215#define MSR_P4_CRU_ESCR0 0x3b8
216#define MSR_P4_CRU_ESCR1 0x3b9
217#define MSR_P4_CRU_ESCR2 0x3cc
218#define MSR_P4_CRU_ESCR3 0x3cd
219#define MSR_P4_CRU_ESCR4 0x3e0
220#define MSR_P4_CRU_ESCR5 0x3e1
221#define MSR_P4_DAC_ESCR0 0x3a8
222#define MSR_P4_DAC_ESCR1 0x3a9
223#define MSR_P4_FIRM_ESCR0 0x3a4
224#define MSR_P4_FIRM_ESCR1 0x3a5
225#define MSR_P4_FLAME_ESCR0 0x3a6
226#define MSR_P4_FLAME_ESCR1 0x3a7
227#define MSR_P4_FSB_ESCR0 0x3a2
228#define MSR_P4_FSB_ESCR1 0x3a3
229#define MSR_P4_IQ_ESCR0 0x3ba
230#define MSR_P4_IQ_ESCR1 0x3bb
231#define MSR_P4_IS_ESCR0 0x3b4
232#define MSR_P4_IS_ESCR1 0x3b5
233#define MSR_P4_ITLB_ESCR0 0x3b6
234#define MSR_P4_ITLB_ESCR1 0x3b7
235#define MSR_P4_IX_ESCR0 0x3c8
236#define MSR_P4_IX_ESCR1 0x3c9
237#define MSR_P4_MOB_ESCR0 0x3aa
238#define MSR_P4_MOB_ESCR1 0x3ab
239#define MSR_P4_MS_ESCR0 0x3c0
240#define MSR_P4_MS_ESCR1 0x3c1
241#define MSR_P4_PMH_ESCR0 0x3ac
242#define MSR_P4_PMH_ESCR1 0x3ad
243#define MSR_P4_RAT_ESCR0 0x3bc
244#define MSR_P4_RAT_ESCR1 0x3bd
245#define MSR_P4_SAAT_ESCR0 0x3ae
246#define MSR_P4_SAAT_ESCR1 0x3af
247#define MSR_P4_SSU_ESCR0 0x3be
248#define MSR_P4_SSU_ESCR1 0x3bf /* guess: not defined in manual */
249#define MSR_P4_TBPU_ESCR0 0x3c2
250#define MSR_P4_TBPU_ESCR1 0x3c3
251#define MSR_P4_TC_ESCR0 0x3c4
252#define MSR_P4_TC_ESCR1 0x3c5
253#define MSR_P4_U2L_ESCR0 0x3b0
254#define MSR_P4_U2L_ESCR1 0x3b1
255
256/* AMD Defined MSRs */
257#define MSR_K6_EFER 0xC0000080
258#define MSR_K6_STAR 0xC0000081
259#define MSR_K6_WHCR 0xC0000082
260#define MSR_K6_UWCCR 0xC0000085
261#define MSR_K6_EPMR 0xC0000086
262#define MSR_K6_PSOR 0xC0000087
263#define MSR_K6_PFIR 0xC0000088
264
265#define MSR_K7_EVNTSEL0 0xC0010000
266#define MSR_K7_EVNTSEL1 0xC0010001
267#define MSR_K7_EVNTSEL2 0xC0010002
268#define MSR_K7_EVNTSEL3 0xC0010003
269#define MSR_K7_PERFCTR0 0xC0010004
270#define MSR_K7_PERFCTR1 0xC0010005
271#define MSR_K7_PERFCTR2 0xC0010006
272#define MSR_K7_PERFCTR3 0xC0010007
273#define MSR_K7_HWCR 0xC0010015
274#define MSR_K7_CLK_CTL 0xC001001b
275#define MSR_K7_FID_VID_CTL 0xC0010041
276#define MSR_K7_FID_VID_STATUS 0xC0010042
277
278#define MSR_K8_ENABLE_C1E 0xC0010055
279
280/* extended feature register */
281#define MSR_EFER 0xc0000080
282
283/* EFER bits: */
284
285/* Execute Disable enable */
286#define _EFER_NX 11
287#define EFER_NX (1<<_EFER_NX)
288
289/* Centaur-Hauls/IDT defined MSRs. */
290#define MSR_IDT_FCR1 0x107
291#define MSR_IDT_FCR2 0x108
292#define MSR_IDT_FCR3 0x109
293#define MSR_IDT_FCR4 0x10a
294
295#define MSR_IDT_MCR0 0x110
296#define MSR_IDT_MCR1 0x111
297#define MSR_IDT_MCR2 0x112
298#define MSR_IDT_MCR3 0x113
299#define MSR_IDT_MCR4 0x114
300#define MSR_IDT_MCR5 0x115
301#define MSR_IDT_MCR6 0x116
302#define MSR_IDT_MCR7 0x117
303#define MSR_IDT_MCR_CTRL 0x120
304
305/* VIA Cyrix defined MSRs*/
306#define MSR_VIA_FCR 0x1107
307#define MSR_VIA_LONGHAUL 0x110a
308#define MSR_VIA_RNG 0x110b
309#define MSR_VIA_BCR2 0x1147
310
311/* Transmeta defined MSRs */
312#define MSR_TMTA_LONGRUN_CTRL 0x80868010
313#define MSR_TMTA_LONGRUN_FLAGS 0x80868011
314#define MSR_TMTA_LRTI_READOUT 0x80868018
315#define MSR_TMTA_LRTI_VOLT_MHZ 0x8086801a
316
317/* Intel Core-based CPU performance counters */
318#define MSR_CORE_PERF_FIXED_CTR0 0x309
319#define MSR_CORE_PERF_FIXED_CTR1 0x30a
320#define MSR_CORE_PERF_FIXED_CTR2 0x30b
321#define MSR_CORE_PERF_FIXED_CTR_CTRL 0x38d
322#define MSR_CORE_PERF_GLOBAL_STATUS 0x38e
323#define MSR_CORE_PERF_GLOBAL_CTRL 0x38f
324#define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x390
325
326/* Geode defined MSRs */
327#define MSR_GEODE_BUSCONT_CONF0 0x1900
328
329#endif /* __ASM_MSR_H */ 163#endif /* __ASM_MSR_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-09 20:41:46 -0500