diff options
Diffstat (limited to 'include/asm-i386/msr.h')
| -rw-r--r-- | include/asm-i386/msr.h | 400 |
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 @@ #ifndef __ASM_MSR_H #define __ASM_MSR_H +#include <asm/msr-index.h> + +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ + +#include <asm/errno.h> + +static inline unsigned long long native_read_msr(unsigned int msr) +{ + unsigned long long val; + + asm volatile("rdmsr" : "=A" (val) : "c" (msr)); + return val; +} + +static inline unsigned long long native_read_msr_safe(unsigned int msr, + int *err) +{ + unsigned long long val; + + asm volatile("2: rdmsr ; xorl %0,%0\n" + "1:\n\t" + ".section .fixup,\"ax\"\n\t" + "3: movl %3,%0 ; jmp 1b\n\t" + ".previous\n\t" + ".section __ex_table,\"a\"\n" + " .align 4\n\t" + " .long 2b,3b\n\t" + ".previous" + : "=r" (*err), "=A" (val) + : "c" (msr), "i" (-EFAULT)); + + return val; +} + +static inline void native_write_msr(unsigned int msr, unsigned long long val) +{ + asm volatile("wrmsr" : : "c" (msr), "A"(val)); +} + +static inline int native_write_msr_safe(unsigned int msr, + unsigned long long val) +{ + int err; + asm volatile("2: wrmsr ; xorl %0,%0\n" + "1:\n\t" + ".section .fixup,\"ax\"\n\t" + "3: movl %4,%0 ; jmp 1b\n\t" + ".previous\n\t" + ".section __ex_table,\"a\"\n" + " .align 4\n\t" + " .long 2b,3b\n\t" + ".previous" + : "=a" (err) + : "c" (msr), "0" ((u32)val), "d" ((u32)(val>>32)), + "i" (-EFAULT)); + return err; +} + +static inline unsigned long long native_read_tsc(void) +{ + unsigned long long val; + asm volatile("rdtsc" : "=A" (val)); + return val; +} + +static inline unsigned long long native_read_pmc(void) +{ + unsigned long long val; + asm volatile("rdpmc" : "=A" (val)); + return val; +} + #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else @@ -11,22 +84,20 @@ * pointer indirection), this allows gcc to optimize better */ -#define rdmsr(msr,val1,val2) \ - __asm__ __volatile__("rdmsr" \ - : "=a" (val1), "=d" (val2) \ - : "c" (msr)) +#define rdmsr(msr,val1,val2) \ + do { \ + unsigned long long __val = native_read_msr(msr); \ + val1 = __val; \ + val2 = __val >> 32; \ + } while(0) -#define wrmsr(msr,val1,val2) \ - __asm__ __volatile__("wrmsr" \ - : /* no outputs */ \ - : "c" (msr), "a" (val1), "d" (val2)) +#define wrmsr(msr,val1,val2) \ + native_write_msr(msr, ((unsigned long long)val2 << 32) | val1) -#define rdmsrl(msr,val) do { \ - unsigned long l__,h__; \ - rdmsr (msr, l__, h__); \ - val = l__; \ - val |= ((u64)h__<<32); \ -} while(0) +#define rdmsrl(msr,val) \ + do { \ + (val) = native_read_msr(msr); \ + } while(0) static inline void wrmsrl (unsigned long msr, unsigned long long val) { @@ -37,50 +108,41 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val) } /* wrmsr with exception handling */ -#define wrmsr_safe(msr,a,b) ({ int ret__; \ - asm volatile("2: wrmsr ; xorl %0,%0\n" \ - "1:\n\t" \ - ".section .fixup,\"ax\"\n\t" \ - "3: movl %4,%0 ; jmp 1b\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n\t" \ - " .long 2b,3b\n\t" \ - ".previous" \ - : "=a" (ret__) \ - : "c" (msr), "0" (a), "d" (b), "i" (-EFAULT));\ - ret__; }) +#define wrmsr_safe(msr,val1,val2) \ + (native_write_msr_safe(msr, ((unsigned long long)val2 << 32) | val1)) /* rdmsr with exception handling */ -#define rdmsr_safe(msr,a,b) ({ int ret__; \ - asm volatile("2: rdmsr ; xorl %0,%0\n" \ - "1:\n\t" \ - ".section .fixup,\"ax\"\n\t" \ - "3: movl %4,%0 ; jmp 1b\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n\t" \ - " .long 2b,3b\n\t" \ - ".previous" \ - : "=r" (ret__), "=a" (*(a)), "=d" (*(b)) \ - : "c" (msr), "i" (-EFAULT));\ - ret__; }) - -#define rdtsc(low,high) \ - __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high)) - -#define rdtscl(low) \ - __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx") - -#define rdtscll(val) \ - __asm__ __volatile__("rdtsc" : "=A" (val)) +#define rdmsr_safe(msr,p1,p2) \ + ({ \ + int __err; \ + unsigned long long __val = native_read_msr_safe(msr, &__err);\ + (*p1) = __val; \ + (*p2) = __val >> 32; \ + __err; \ + }) + +#define rdtsc(low,high) \ + do { \ + u64 _l = native_read_tsc(); \ + (low) = (u32)_l; \ + (high) = _l >> 32; \ + } while(0) + +#define rdtscl(low) \ + do { \ + (low) = native_read_tsc(); \ + } while(0) + +#define rdtscll(val) ((val) = native_read_tsc()) #define write_tsc(val1,val2) wrmsr(0x10, val1, val2) -#define rdpmc(counter,low,high) \ - __asm__ __volatile__("rdpmc" \ - : "=a" (low), "=d" (high) \ - : "c" (counter)) +#define rdpmc(counter,low,high) \ + do { \ + u64 _l = native_read_pmc(); \ + low = (u32)_l; \ + high = _l >> 32; \ + } while(0) #endif /* !CONFIG_PARAVIRT */ #ifdef CONFIG_SMP @@ -96,234 +158,6 @@ static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) wrmsr(msr_no, l, h); } #endif /* CONFIG_SMP */ - -/* symbolic names for some interesting MSRs */ -/* Intel defined MSRs. */ -#define MSR_IA32_P5_MC_ADDR 0 -#define MSR_IA32_P5_MC_TYPE 1 -#define MSR_IA32_PLATFORM_ID 0x17 -#define MSR_IA32_EBL_CR_POWERON 0x2a - -#define MSR_IA32_APICBASE 0x1b -#define MSR_IA32_APICBASE_BSP (1<<8) -#define MSR_IA32_APICBASE_ENABLE (1<<11) -#define MSR_IA32_APICBASE_BASE (0xfffff<<12) - -#define MSR_IA32_UCODE_WRITE 0x79 -#define MSR_IA32_UCODE_REV 0x8b - -#define MSR_P6_PERFCTR0 0xc1 -#define MSR_P6_PERFCTR1 0xc2 -#define MSR_FSB_FREQ 0xcd - - -#define MSR_IA32_BBL_CR_CTL 0x119 - -#define MSR_IA32_SYSENTER_CS 0x174 -#define MSR_IA32_SYSENTER_ESP 0x175 -#define MSR_IA32_SYSENTER_EIP 0x176 - -#define MSR_IA32_MCG_CAP 0x179 -#define MSR_IA32_MCG_STATUS 0x17a -#define MSR_IA32_MCG_CTL 0x17b - -/* P4/Xeon+ specific */ -#define MSR_IA32_MCG_EAX 0x180 -#define MSR_IA32_MCG_EBX 0x181 -#define MSR_IA32_MCG_ECX 0x182 -#define MSR_IA32_MCG_EDX 0x183 -#define MSR_IA32_MCG_ESI 0x184 -#define MSR_IA32_MCG_EDI 0x185 -#define MSR_IA32_MCG_EBP 0x186 -#define MSR_IA32_MCG_ESP 0x187 -#define MSR_IA32_MCG_EFLAGS 0x188 -#define MSR_IA32_MCG_EIP 0x189 -#define MSR_IA32_MCG_RESERVED 0x18A - -#define MSR_P6_EVNTSEL0 0x186 -#define MSR_P6_EVNTSEL1 0x187 - -#define MSR_IA32_PERF_STATUS 0x198 -#define MSR_IA32_PERF_CTL 0x199 - -#define MSR_IA32_MPERF 0xE7 -#define MSR_IA32_APERF 0xE8 - -#define MSR_IA32_THERM_CONTROL 0x19a -#define MSR_IA32_THERM_INTERRUPT 0x19b -#define MSR_IA32_THERM_STATUS 0x19c -#define MSR_IA32_MISC_ENABLE 0x1a0 - -#define MSR_IA32_DEBUGCTLMSR 0x1d9 -#define MSR_IA32_LASTBRANCHFROMIP 0x1db -#define MSR_IA32_LASTBRANCHTOIP 0x1dc -#define MSR_IA32_LASTINTFROMIP 0x1dd -#define MSR_IA32_LASTINTTOIP 0x1de - -#define MSR_IA32_MC0_CTL 0x400 -#define MSR_IA32_MC0_STATUS 0x401 -#define MSR_IA32_MC0_ADDR 0x402 -#define MSR_IA32_MC0_MISC 0x403 - -#define MSR_IA32_PEBS_ENABLE 0x3f1 -#define MSR_IA32_DS_AREA 0x600 -#define MSR_IA32_PERF_CAPABILITIES 0x345 - -/* Pentium IV performance counter MSRs */ -#define MSR_P4_BPU_PERFCTR0 0x300 -#define MSR_P4_BPU_PERFCTR1 0x301 -#define MSR_P4_BPU_PERFCTR2 0x302 -#define MSR_P4_BPU_PERFCTR3 0x303 -#define MSR_P4_MS_PERFCTR0 0x304 -#define MSR_P4_MS_PERFCTR1 0x305 -#define MSR_P4_MS_PERFCTR2 0x306 -#define MSR_P4_MS_PERFCTR3 0x307 -#define MSR_P4_FLAME_PERFCTR0 0x308 -#define MSR_P4_FLAME_PERFCTR1 0x309 -#define MSR_P4_FLAME_PERFCTR2 0x30a -#define MSR_P4_FLAME_PERFCTR3 0x30b -#define MSR_P4_IQ_PERFCTR0 0x30c -#define MSR_P4_IQ_PERFCTR1 0x30d -#define MSR_P4_IQ_PERFCTR2 0x30e -#define MSR_P4_IQ_PERFCTR3 0x30f -#define MSR_P4_IQ_PERFCTR4 0x310 -#define MSR_P4_IQ_PERFCTR5 0x311 -#define MSR_P4_BPU_CCCR0 0x360 -#define MSR_P4_BPU_CCCR1 0x361 -#define MSR_P4_BPU_CCCR2 0x362 -#define MSR_P4_BPU_CCCR3 0x363 -#define MSR_P4_MS_CCCR0 0x364 -#define MSR_P4_MS_CCCR1 0x365 -#define MSR_P4_MS_CCCR2 0x366 -#define MSR_P4_MS_CCCR3 0x367 -#define MSR_P4_FLAME_CCCR0 0x368 -#define MSR_P4_FLAME_CCCR1 0x369 -#define MSR_P4_FLAME_CCCR2 0x36a -#define MSR_P4_FLAME_CCCR3 0x36b -#define MSR_P4_IQ_CCCR0 0x36c -#define MSR_P4_IQ_CCCR1 0x36d -#define MSR_P4_IQ_CCCR2 0x36e -#define MSR_P4_IQ_CCCR3 0x36f -#define MSR_P4_IQ_CCCR4 0x370 -#define MSR_P4_IQ_CCCR5 0x371 -#define MSR_P4_ALF_ESCR0 0x3ca -#define MSR_P4_ALF_ESCR1 0x3cb -#define MSR_P4_BPU_ESCR0 0x3b2 -#define MSR_P4_BPU_ESCR1 0x3b3 -#define MSR_P4_BSU_ESCR0 0x3a0 -#define MSR_P4_BSU_ESCR1 0x3a1 -#define MSR_P4_CRU_ESCR0 0x3b8 -#define MSR_P4_CRU_ESCR1 0x3b9 -#define MSR_P4_CRU_ESCR2 0x3cc -#define MSR_P4_CRU_ESCR3 0x3cd -#define MSR_P4_CRU_ESCR4 0x3e0 -#define MSR_P4_CRU_ESCR5 0x3e1 -#define MSR_P4_DAC_ESCR0 0x3a8 -#define MSR_P4_DAC_ESCR1 0x3a9 -#define MSR_P4_FIRM_ESCR0 0x3a4 -#define MSR_P4_FIRM_ESCR1 0x3a5 -#define MSR_P4_FLAME_ESCR0 0x3a6 -#define MSR_P4_FLAME_ESCR1 0x3a7 -#define MSR_P4_FSB_ESCR0 0x3a2 -#define MSR_P4_FSB_ESCR1 0x3a3 -#define MSR_P4_IQ_ESCR0 0x3ba -#define MSR_P4_IQ_ESCR1 0x3bb -#define MSR_P4_IS_ESCR0 0x3b4 -#define MSR_P4_IS_ESCR1 0x3b5 -#define MSR_P4_ITLB_ESCR0 0x3b6 -#define MSR_P4_ITLB_ESCR1 0x3b7 -#define MSR_P4_IX_ESCR0 0x3c8 -#define MSR_P4_IX_ESCR1 0x3c9 -#define MSR_P4_MOB_ESCR0 0x3aa -#define MSR_P4_MOB_ESCR1 0x3ab -#define MSR_P4_MS_ESCR0 0x3c0 -#define MSR_P4_MS_ESCR1 0x3c1 -#define MSR_P4_PMH_ESCR0 0x3ac -#define MSR_P4_PMH_ESCR1 0x3ad -#define MSR_P4_RAT_ESCR0 0x3bc -#define MSR_P4_RAT_ESCR1 0x3bd -#define MSR_P4_SAAT_ESCR0 0x3ae -#define MSR_P4_SAAT_ESCR1 0x3af -#define MSR_P4_SSU_ESCR0 0x3be -#define MSR_P4_SSU_ESCR1 0x3bf /* guess: not defined in manual */ -#define MSR_P4_TBPU_ESCR0 0x3c2 -#define MSR_P4_TBPU_ESCR1 0x3c3 -#define MSR_P4_TC_ESCR0 0x3c4 -#define MSR_P4_TC_ESCR1 0x3c5 -#define MSR_P4_U2L_ESCR0 0x3b0 -#define MSR_P4_U2L_ESCR1 0x3b1 - -/* AMD Defined MSRs */ -#define MSR_K6_EFER 0xC0000080 -#define MSR_K6_STAR 0xC0000081 -#define MSR_K6_WHCR 0xC0000082 -#define MSR_K6_UWCCR 0xC0000085 -#define MSR_K6_EPMR 0xC0000086 -#define MSR_K6_PSOR 0xC0000087 -#define MSR_K6_PFIR 0xC0000088 - -#define MSR_K7_EVNTSEL0 0xC0010000 -#define MSR_K7_EVNTSEL1 0xC0010001 -#define MSR_K7_EVNTSEL2 0xC0010002 -#define MSR_K7_EVNTSEL3 0xC0010003 -#define MSR_K7_PERFCTR0 0xC0010004 -#define MSR_K7_PERFCTR1 0xC0010005 -#define MSR_K7_PERFCTR2 0xC0010006 -#define MSR_K7_PERFCTR3 0xC0010007 -#define MSR_K7_HWCR 0xC0010015 -#define MSR_K7_CLK_CTL 0xC001001b -#define MSR_K7_FID_VID_CTL 0xC0010041 -#define MSR_K7_FID_VID_STATUS 0xC0010042 - -#define MSR_K8_ENABLE_C1E 0xC0010055 - -/* extended feature register */ -#define MSR_EFER 0xc0000080 - -/* EFER bits: */ - -/* Execute Disable enable */ -#define _EFER_NX 11 -#define EFER_NX (1<<_EFER_NX) - -/* Centaur-Hauls/IDT defined MSRs. */ -#define MSR_IDT_FCR1 0x107 -#define MSR_IDT_FCR2 0x108 -#define MSR_IDT_FCR3 0x109 -#define MSR_IDT_FCR4 0x10a - -#define MSR_IDT_MCR0 0x110 -#define MSR_IDT_MCR1 0x111 -#define MSR_IDT_MCR2 0x112 -#define MSR_IDT_MCR3 0x113 -#define MSR_IDT_MCR4 0x114 -#define MSR_IDT_MCR5 0x115 -#define MSR_IDT_MCR6 0x116 -#define MSR_IDT_MCR7 0x117 -#define MSR_IDT_MCR_CTRL 0x120 - -/* VIA Cyrix defined MSRs*/ -#define MSR_VIA_FCR 0x1107 -#define MSR_VIA_LONGHAUL 0x110a -#define MSR_VIA_RNG 0x110b -#define MSR_VIA_BCR2 0x1147 - -/* Transmeta defined MSRs */ -#define MSR_TMTA_LONGRUN_CTRL 0x80868010 -#define MSR_TMTA_LONGRUN_FLAGS 0x80868011 -#define MSR_TMTA_LRTI_READOUT 0x80868018 -#define MSR_TMTA_LRTI_VOLT_MHZ 0x8086801a - -/* Intel Core-based CPU performance counters */ -#define MSR_CORE_PERF_FIXED_CTR0 0x309 -#define MSR_CORE_PERF_FIXED_CTR1 0x30a -#define MSR_CORE_PERF_FIXED_CTR2 0x30b -#define MSR_CORE_PERF_FIXED_CTR_CTRL 0x38d -#define MSR_CORE_PERF_GLOBAL_STATUS 0x38e -#define MSR_CORE_PERF_GLOBAL_CTRL 0x38f -#define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x390 - -/* Geode defined MSRs */ -#define MSR_GEODE_BUSCONT_CONF0 0x1900 - +#endif +#endif #endif /* __ASM_MSR_H */ |