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Diffstat (limited to 'include/asm-x86/msr.h')
-rw-r--r--include/asm-x86/msr.h247
1 files changed, 0 insertions, 247 deletions
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
deleted file mode 100644
index 530af1f6389..00000000000
--- a/include/asm-x86/msr.h
+++ /dev/null
@@ -1,247 +0,0 @@
-#ifndef ASM_X86__MSR_H
-#define ASM_X86__MSR_H
-
-#include <asm/msr-index.h>
-
-#ifndef __ASSEMBLY__
-# include <linux/types.h>
-#endif
-
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-
-#include <asm/asm.h>
-#include <asm/errno.h>
-
-static inline unsigned long long native_read_tscp(unsigned int *aux)
-{
- unsigned long low, high;
- asm volatile(".byte 0x0f,0x01,0xf9"
- : "=a" (low), "=d" (high), "=c" (*aux));
- return low | ((u64)high << 32);
-}
-
-/*
- * i386 calling convention returns 64-bit value in edx:eax, while
- * x86_64 returns at rax. Also, the "A" constraint does not really
- * mean rdx:rax in x86_64, so we need specialized behaviour for each
- * architecture
- */
-#ifdef CONFIG_X86_64
-#define DECLARE_ARGS(val, low, high) unsigned low, high
-#define EAX_EDX_VAL(val, low, high) ((low) | ((u64)(high) << 32))
-#define EAX_EDX_ARGS(val, low, high) "a" (low), "d" (high)
-#define EAX_EDX_RET(val, low, high) "=a" (low), "=d" (high)
-#else
-#define DECLARE_ARGS(val, low, high) unsigned long long val
-#define EAX_EDX_VAL(val, low, high) (val)
-#define EAX_EDX_ARGS(val, low, high) "A" (val)
-#define EAX_EDX_RET(val, low, high) "=A" (val)
-#endif
-
-static inline unsigned long long native_read_msr(unsigned int msr)
-{
- DECLARE_ARGS(val, low, high);
-
- asm volatile("rdmsr" : EAX_EDX_RET(val, low, high) : "c" (msr));
- return EAX_EDX_VAL(val, low, high);
-}
-
-static inline unsigned long long native_read_msr_safe(unsigned int msr,
- int *err)
-{
- DECLARE_ARGS(val, low, high);
-
- asm volatile("2: rdmsr ; xor %[err],%[err]\n"
- "1:\n\t"
- ".section .fixup,\"ax\"\n\t"
- "3: mov %[fault],%[err] ; jmp 1b\n\t"
- ".previous\n\t"
- _ASM_EXTABLE(2b, 3b)
- : [err] "=r" (*err), EAX_EDX_RET(val, low, high)
- : "c" (msr), [fault] "i" (-EFAULT));
- return EAX_EDX_VAL(val, low, high);
-}
-
-static inline unsigned long long native_read_msr_amd_safe(unsigned int msr,
- int *err)
-{
- DECLARE_ARGS(val, low, high);
-
- asm volatile("2: rdmsr ; xor %0,%0\n"
- "1:\n\t"
- ".section .fixup,\"ax\"\n\t"
- "3: mov %3,%0 ; jmp 1b\n\t"
- ".previous\n\t"
- _ASM_EXTABLE(2b, 3b)
- : "=r" (*err), EAX_EDX_RET(val, low, high)
- : "c" (msr), "D" (0x9c5a203a), "i" (-EFAULT));
- return EAX_EDX_VAL(val, low, high);
-}
-
-static inline void native_write_msr(unsigned int msr,
- unsigned low, unsigned high)
-{
- asm volatile("wrmsr" : : "c" (msr), "a"(low), "d" (high) : "memory");
-}
-
-static inline int native_write_msr_safe(unsigned int msr,
- unsigned low, unsigned high)
-{
- int err;
- asm volatile("2: wrmsr ; xor %[err],%[err]\n"
- "1:\n\t"
- ".section .fixup,\"ax\"\n\t"
- "3: mov %[fault],%[err] ; jmp 1b\n\t"
- ".previous\n\t"
- _ASM_EXTABLE(2b, 3b)
- : [err] "=a" (err)
- : "c" (msr), "0" (low), "d" (high),
- [fault] "i" (-EFAULT)
- : "memory");
- return err;
-}
-
-extern unsigned long long native_read_tsc(void);
-
-static __always_inline unsigned long long __native_read_tsc(void)
-{
- DECLARE_ARGS(val, low, high);
-
- rdtsc_barrier();
- asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
- rdtsc_barrier();
-
- return EAX_EDX_VAL(val, low, high);
-}
-
-static inline unsigned long long native_read_pmc(int counter)
-{
- DECLARE_ARGS(val, low, high);
-
- asm volatile("rdpmc" : EAX_EDX_RET(val, low, high) : "c" (counter));
- return EAX_EDX_VAL(val, low, high);
-}
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#include <linux/errno.h>
-/*
- * Access to machine-specific registers (available on 586 and better only)
- * Note: the rd* operations modify the parameters directly (without using
- * pointer indirection), this allows gcc to optimize better
- */
-
-#define rdmsr(msr, val1, val2) \
-do { \
- u64 __val = native_read_msr((msr)); \
- (val1) = (u32)__val; \
- (val2) = (u32)(__val >> 32); \
-} while (0)
-
-static inline void wrmsr(unsigned msr, unsigned low, unsigned high)
-{
- native_write_msr(msr, low, high);
-}
-
-#define rdmsrl(msr, val) \
- ((val) = native_read_msr((msr)))
-
-#define wrmsrl(msr, val) \
- native_write_msr((msr), (u32)((u64)(val)), (u32)((u64)(val) >> 32))
-
-/* wrmsr with exception handling */
-static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high)
-{
- return native_write_msr_safe(msr, low, high);
-}
-
-/* rdmsr with exception handling */
-#define rdmsr_safe(msr, p1, p2) \
-({ \
- int __err; \
- u64 __val = native_read_msr_safe((msr), &__err); \
- (*p1) = (u32)__val; \
- (*p2) = (u32)(__val >> 32); \
- __err; \
-})
-
-static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
-{
- int err;
-
- *p = native_read_msr_safe(msr, &err);
- return err;
-}
-static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
-{
- int err;
-
- *p = native_read_msr_amd_safe(msr, &err);
- return err;
-}
-
-#define rdtscl(low) \
- ((low) = (u32)native_read_tsc())
-
-#define rdtscll(val) \
- ((val) = native_read_tsc())
-
-#define rdpmc(counter, low, high) \
-do { \
- u64 _l = native_read_pmc((counter)); \
- (low) = (u32)_l; \
- (high) = (u32)(_l >> 32); \
-} while (0)
-
-#define rdtscp(low, high, aux) \
-do { \
- unsigned long long _val = native_read_tscp(&(aux)); \
- (low) = (u32)_val; \
- (high) = (u32)(_val >> 32); \
-} while (0)
-
-#define rdtscpll(val, aux) (val) = native_read_tscp(&(aux))
-
-#endif /* !CONFIG_PARAVIRT */
-
-
-#define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val), \
- (u32)((val) >> 32))
-
-#define write_tsc(val1, val2) wrmsr(0x10, (val1), (val2))
-
-#define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0)
-
-#ifdef CONFIG_SMP
-int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
-int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
-int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
-int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
-#else /* CONFIG_SMP */
-static inline int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
- rdmsr(msr_no, *l, *h);
- return 0;
-}
-static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
- wrmsr(msr_no, l, h);
- return 0;
-}
-static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no,
- u32 *l, u32 *h)
-{
- return rdmsr_safe(msr_no, l, h);
-}
-static inline int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
- return wrmsr_safe(msr_no, l, h);
-}
-#endif /* CONFIG_SMP */
-#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
-
-
-#endif /* ASM_X86__MSR_H */
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