mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 19:36:44 +07:00
04a705df47
Intel fixed counters do not support all the filters possible with a generic counter. Thus, if a fixed counter event is passed but with certain filters set, then the fixed_mode_idx() function must fail and the event must be measured in a generic counter instead. Reject filters are: inv, edge, cnt-mask. Signed-off-by: Stephane Eranian <eranian@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1254840129-6198-2-git-send-email-eranian@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
#ifndef _ASM_X86_PERF_EVENT_H
|
|
#define _ASM_X86_PERF_EVENT_H
|
|
|
|
/*
|
|
* Performance event hw details:
|
|
*/
|
|
|
|
#define X86_PMC_MAX_GENERIC 8
|
|
#define X86_PMC_MAX_FIXED 3
|
|
|
|
#define X86_PMC_IDX_GENERIC 0
|
|
#define X86_PMC_IDX_FIXED 32
|
|
#define X86_PMC_IDX_MAX 64
|
|
|
|
#define MSR_ARCH_PERFMON_PERFCTR0 0xc1
|
|
#define MSR_ARCH_PERFMON_PERFCTR1 0xc2
|
|
|
|
#define MSR_ARCH_PERFMON_EVENTSEL0 0x186
|
|
#define MSR_ARCH_PERFMON_EVENTSEL1 0x187
|
|
|
|
#define ARCH_PERFMON_EVENTSEL0_ENABLE (1 << 22)
|
|
#define ARCH_PERFMON_EVENTSEL_INT (1 << 20)
|
|
#define ARCH_PERFMON_EVENTSEL_OS (1 << 17)
|
|
#define ARCH_PERFMON_EVENTSEL_USR (1 << 16)
|
|
|
|
/*
|
|
* Includes eventsel and unit mask as well:
|
|
*/
|
|
#define ARCH_PERFMON_EVENT_MASK 0xffff
|
|
|
|
/*
|
|
* filter mask to validate fixed counter events.
|
|
* the following filters disqualify for fixed counters:
|
|
* - inv
|
|
* - edge
|
|
* - cnt-mask
|
|
* The other filters are supported by fixed counters.
|
|
* The any-thread option is supported starting with v3.
|
|
*/
|
|
#define ARCH_PERFMON_EVENT_FILTER_MASK 0xff840000
|
|
|
|
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c
|
|
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8)
|
|
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0
|
|
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \
|
|
(1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX))
|
|
|
|
#define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6
|
|
|
|
/*
|
|
* Intel "Architectural Performance Monitoring" CPUID
|
|
* detection/enumeration details:
|
|
*/
|
|
union cpuid10_eax {
|
|
struct {
|
|
unsigned int version_id:8;
|
|
unsigned int num_events:8;
|
|
unsigned int bit_width:8;
|
|
unsigned int mask_length:8;
|
|
} split;
|
|
unsigned int full;
|
|
};
|
|
|
|
union cpuid10_edx {
|
|
struct {
|
|
unsigned int num_events_fixed:4;
|
|
unsigned int reserved:28;
|
|
} split;
|
|
unsigned int full;
|
|
};
|
|
|
|
|
|
/*
|
|
* Fixed-purpose performance events:
|
|
*/
|
|
|
|
/*
|
|
* All 3 fixed-mode PMCs are configured via this single MSR:
|
|
*/
|
|
#define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d
|
|
|
|
/*
|
|
* The counts are available in three separate MSRs:
|
|
*/
|
|
|
|
/* Instr_Retired.Any: */
|
|
#define MSR_ARCH_PERFMON_FIXED_CTR0 0x309
|
|
#define X86_PMC_IDX_FIXED_INSTRUCTIONS (X86_PMC_IDX_FIXED + 0)
|
|
|
|
/* CPU_CLK_Unhalted.Core: */
|
|
#define MSR_ARCH_PERFMON_FIXED_CTR1 0x30a
|
|
#define X86_PMC_IDX_FIXED_CPU_CYCLES (X86_PMC_IDX_FIXED + 1)
|
|
|
|
/* CPU_CLK_Unhalted.Ref: */
|
|
#define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b
|
|
#define X86_PMC_IDX_FIXED_BUS_CYCLES (X86_PMC_IDX_FIXED + 2)
|
|
|
|
/*
|
|
* We model BTS tracing as another fixed-mode PMC.
|
|
*
|
|
* We choose a value in the middle of the fixed event range, since lower
|
|
* values are used by actual fixed events and higher values are used
|
|
* to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
|
|
*/
|
|
#define X86_PMC_IDX_FIXED_BTS (X86_PMC_IDX_FIXED + 16)
|
|
|
|
|
|
#ifdef CONFIG_PERF_EVENTS
|
|
extern void init_hw_perf_events(void);
|
|
extern void perf_events_lapic_init(void);
|
|
|
|
#define PERF_EVENT_INDEX_OFFSET 0
|
|
|
|
#else
|
|
static inline void init_hw_perf_events(void) { }
|
|
static inline void perf_events_lapic_init(void) { }
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_PERF_EVENT_H */
|