5 * Access to machine-specific registers (available on 586 and better only)
6 * Note: the rd* operations modify the parameters directly (without using
7 * pointer indirection), this allows gcc to optimize better
10 #define rdmsr(msr,val1,val2) \
11 __asm__ __volatile__("rdmsr" \
12 : "=a" (val1), "=d" (val2) \
15 #define wrmsr(msr,val1,val2) \
16 __asm__ __volatile__("wrmsr" \
18 : "c" (msr), "a" (val1), "d" (val2))
20 #define rdtsc(low,high) \
21 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
24 __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx")
26 #define rdtscll(val) \
27 __asm__ __volatile__("rdtsc" : "=A" (val))
29 #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
31 #define rdpmc(counter,low,high) \
32 __asm__ __volatile__("rdpmc" \
33 : "=a" (low), "=d" (high) \
36 /* symbolic names for some interesting MSRs */
37 /* Intel defined MSRs. */
38 #define MSR_IA32_P5_MC_ADDR 0
39 #define MSR_IA32_P5_MC_TYPE 1
40 #define MSR_IA32_PLATFORM_ID 0x17
41 #define MSR_IA32_EBL_CR_POWERON 0x2a
43 #define MSR_IA32_APICBASE 0x1b
44 #define MSR_IA32_APICBASE_BSP (1<<8)
45 #define MSR_IA32_APICBASE_ENABLE (1<<11)
46 #define MSR_IA32_APICBASE_BASE (0xfffff<<12)
48 #define MSR_IA32_UCODE_WRITE 0x79
49 #define MSR_IA32_UCODE_REV 0x8b
51 #define MSR_IA32_BBL_CR_CTL 0x119
53 #define MSR_IA32_MCG_CAP 0x179
54 #define MSR_IA32_MCG_STATUS 0x17a
55 #define MSR_IA32_MCG_CTL 0x17b
57 #define MSR_IA32_THERM_CONTROL 0x19a
58 #define MSR_IA32_THERM_INTERRUPT 0x19b
59 #define MSR_IA32_THERM_STATUS 0x19c
60 #define MSR_IA32_MISC_ENABLE 0x1a0
62 #define MSR_IA32_DEBUGCTLMSR 0x1d9
63 #define MSR_IA32_LASTBRANCHFROMIP 0x1db
64 #define MSR_IA32_LASTBRANCHTOIP 0x1dc
65 #define MSR_IA32_LASTINTFROMIP 0x1dd
66 #define MSR_IA32_LASTINTTOIP 0x1de
68 #define MSR_IA32_MC0_CTL 0x400
69 #define MSR_IA32_MC0_STATUS 0x401
70 #define MSR_IA32_MC0_ADDR 0x402
71 #define MSR_IA32_MC0_MISC 0x403
73 #define MSR_P6_PERFCTR0 0xc1
74 #define MSR_P6_PERFCTR1 0xc2
75 #define MSR_P6_EVNTSEL0 0x186
76 #define MSR_P6_EVNTSEL1 0x187
78 #define MSR_IA32_PERF_STATUS 0x198
79 #define MSR_IA32_PERF_CTL 0x199
81 /* AMD Defined MSRs */
82 #define MSR_K6_EFER 0xC0000080
83 #define MSR_K6_STAR 0xC0000081
84 #define MSR_K6_WHCR 0xC0000082
85 #define MSR_K6_UWCCR 0xC0000085
86 #define MSR_K6_EPMR 0xC0000086
87 #define MSR_K6_PSOR 0xC0000087
88 #define MSR_K6_PFIR 0xC0000088
90 #define MSR_K7_EVNTSEL0 0xC0010000
91 #define MSR_K7_PERFCTR0 0xC0010004
92 #define MSR_K7_HWCR 0xC0010015
93 #define MSR_K7_CLK_CTL 0xC001001b
94 #define MSR_K7_FID_VID_CTL 0xC0010041
95 #define MSR_K7_VID_STATUS 0xC0010042
97 /* Centaur-Hauls/IDT defined MSRs. */
98 #define MSR_IDT_FCR1 0x107
99 #define MSR_IDT_FCR2 0x108
100 #define MSR_IDT_FCR3 0x109
101 #define MSR_IDT_FCR4 0x10a
103 #define MSR_IDT_MCR0 0x110
104 #define MSR_IDT_MCR1 0x111
105 #define MSR_IDT_MCR2 0x112
106 #define MSR_IDT_MCR3 0x113
107 #define MSR_IDT_MCR4 0x114
108 #define MSR_IDT_MCR5 0x115
109 #define MSR_IDT_MCR6 0x116
110 #define MSR_IDT_MCR7 0x117
111 #define MSR_IDT_MCR_CTRL 0x120
113 /* VIA Cyrix defined MSRs*/
114 #define MSR_VIA_FCR 0x1107
115 #define MSR_VIA_LONGHAUL 0x110a
116 #define MSR_VIA_RNG 0x110b
117 #define MSR_VIA_BCR2 0x1147
119 /* Transmeta defined MSRs */
120 #define MSR_TMTA_LONGRUN_CTRL 0x80868010
121 #define MSR_TMTA_LONGRUN_FLAGS 0x80868011
122 #define MSR_TMTA_LRTI_READOUT 0x80868018
123 #define MSR_TMTA_LRTI_VOLT_MHZ 0x8086801a
125 #endif /* __ASM_MSR_H */