diff options
Diffstat (limited to 'arch/x86/include/asm/msr.h')
| -rw-r--r-- | arch/x86/include/asm/msr.h | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 86f20d520a07..0b4920a7238e 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -60,22 +60,20 @@ struct saved_msrs { #define EAX_EDX_RET(val, low, high) "=A" (val) #endif -#ifdef CONFIG_TRACEPOINTS /* * Be very careful with includes. This header is prone to include loops. */ #include <asm/atomic.h> #include <linux/tracepoint-defs.h> -extern struct tracepoint __tracepoint_read_msr; -extern struct tracepoint __tracepoint_write_msr; -extern struct tracepoint __tracepoint_rdpmc; -#define msr_tracepoint_active(t) static_key_false(&(t).key) +#ifdef CONFIG_TRACEPOINTS +DECLARE_TRACEPOINT(read_msr); +DECLARE_TRACEPOINT(write_msr); +DECLARE_TRACEPOINT(rdpmc); extern void do_trace_write_msr(unsigned int msr, u64 val, int failed); extern void do_trace_read_msr(unsigned int msr, u64 val, int failed); extern void do_trace_rdpmc(unsigned int msr, u64 val, int failed); #else -#define msr_tracepoint_active(t) false static inline void do_trace_write_msr(unsigned int msr, u64 val, int failed) {} static inline void do_trace_read_msr(unsigned int msr, u64 val, int failed) {} static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {} @@ -128,7 +126,7 @@ static inline unsigned long long native_read_msr(unsigned int msr) val = __rdmsr(msr); - if (msr_tracepoint_active(__tracepoint_read_msr)) + if (tracepoint_enabled(read_msr)) do_trace_read_msr(msr, val, 0); return val; @@ -150,7 +148,7 @@ static inline unsigned long long native_read_msr_safe(unsigned int msr, _ASM_EXTABLE(2b, 3b) : [err] "=r" (*err), EAX_EDX_RET(val, low, high) : "c" (msr), [fault] "i" (-EIO)); - if (msr_tracepoint_active(__tracepoint_read_msr)) + if (tracepoint_enabled(read_msr)) do_trace_read_msr(msr, EAX_EDX_VAL(val, low, high), *err); return EAX_EDX_VAL(val, low, high); } @@ -161,7 +159,7 @@ native_write_msr(unsigned int msr, u32 low, u32 high) { __wrmsr(msr, low, high); - if (msr_tracepoint_active(__tracepoint_write_msr)) + if (tracepoint_enabled(write_msr)) do_trace_write_msr(msr, ((u64)high << 32 | low), 0); } @@ -181,7 +179,7 @@ native_write_msr_safe(unsigned int msr, u32 low, u32 high) : "c" (msr), "0" (low), "d" (high), [fault] "i" (-EIO) : "memory"); - if (msr_tracepoint_active(__tracepoint_write_msr)) + if (tracepoint_enabled(write_msr)) do_trace_write_msr(msr, ((u64)high << 32 | low), err); return err; } @@ -248,7 +246,7 @@ 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)); - if (msr_tracepoint_active(__tracepoint_rdpmc)) + if (tracepoint_enabled(rdpmc)) do_trace_rdpmc(counter, EAX_EDX_VAL(val, low, high), 0); return EAX_EDX_VAL(val, low, high); } |