5 #include <asm/paravirt.h>
9 * Access to machine-specific registers (available on 586 and better only)
10 * Note: the rd* operations modify the parameters directly (without using
11 * pointer indirection), this allows gcc to optimize better
14 #define rdmsr(msr,val1,val2) \
15 __asm__ __volatile__("rdmsr" \
16 : "=a" (val1), "=d" (val2) \
19 #define wrmsr(msr,val1,val2) \
20 __asm__ __volatile__("wrmsr" \
22 : "c" (msr), "a" (val1), "d" (val2))
24 #define rdmsrl(msr,val) do { \
25 unsigned long l__,h__; \
26 rdmsr (msr, l__, h__); \
28 val |= ((u64)h__<<32); \
31 static inline void wrmsrl (unsigned long msr, unsigned long long val)
34 lo = (unsigned long) val;
39 /* wrmsr with exception handling */
40 #define wrmsr_safe(msr,a,b) ({ int ret__; \
41 asm volatile("2: wrmsr ; xorl %0,%0\n" \
43 ".section .fixup,\"ax\"\n\t" \
44 "3: movl %4,%0 ; jmp 1b\n\t" \
46 ".section __ex_table,\"a\"\n" \
51 : "c" (msr), "0" (a), "d" (b), "i" (-EFAULT));\
54 /* rdmsr with exception handling */
55 #define rdmsr_safe(msr,a,b) ({ int ret__; \
56 asm volatile("2: rdmsr ; xorl %0,%0\n" \
58 ".section .fixup,\"ax\"\n\t" \
59 "3: movl %4,%0 ; jmp 1b\n\t" \
61 ".section __ex_table,\"a\"\n" \
65 : "=r" (ret__), "=a" (*(a)), "=d" (*(b)) \
66 : "c" (msr), "i" (-EFAULT));\
69 #define rdtsc(low,high) \
70 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
73 __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx")
75 #define rdtscll(val) \
76 __asm__ __volatile__("rdtsc" : "=A" (val))
78 #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
80 #define rdpmc(counter,low,high) \
81 __asm__ __volatile__("rdpmc" \
82 : "=a" (low), "=d" (high) \
84 #endif /* !CONFIG_PARAVIRT */
87 void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
88 void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
89 #else /* CONFIG_SMP */
90 static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
92 rdmsr(msr_no, *l, *h);
94 static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
98 #endif /* CONFIG_SMP */
100 /* symbolic names for some interesting MSRs */
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
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)
112 #define MSR_IA32_UCODE_WRITE 0x79
113 #define MSR_IA32_UCODE_REV 0x8b
115 #define MSR_P6_PERFCTR0 0xc1
116 #define MSR_P6_PERFCTR1 0xc2
117 #define MSR_FSB_FREQ 0xcd
120 #define MSR_IA32_BBL_CR_CTL 0x119
122 #define MSR_IA32_SYSENTER_CS 0x174
123 #define MSR_IA32_SYSENTER_ESP 0x175
124 #define MSR_IA32_SYSENTER_EIP 0x176
126 #define MSR_IA32_MCG_CAP 0x179
127 #define MSR_IA32_MCG_STATUS 0x17a
128 #define MSR_IA32_MCG_CTL 0x17b
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
143 #define MSR_P6_EVNTSEL0 0x186
144 #define MSR_P6_EVNTSEL1 0x187
146 #define MSR_IA32_PERF_STATUS 0x198
147 #define MSR_IA32_PERF_CTL 0x199
149 #define MSR_IA32_MPERF 0xE7
150 #define MSR_IA32_APERF 0xE8
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
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
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
168 #define MSR_IA32_PEBS_ENABLE 0x3f1
169 #define MSR_IA32_DS_AREA 0x600
170 #define MSR_IA32_PERF_CAPABILITIES 0x345
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
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
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
278 #define MSR_K8_ENABLE_C1E 0xC0010055
280 /* extended feature register */
281 #define MSR_EFER 0xc0000080
285 /* Execute Disable enable */
287 #define EFER_NX (1<<_EFER_NX)
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
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
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
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
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
326 /* Geode defined MSRs */
327 #define MSR_GEODE_BUSCONT_CONF0 0x1900
329 #endif /* __ASM_MSR_H */