diff options
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/xe_drm.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h index 00d5cb4ef85e..d48d8e3c898c 100644 --- a/include/uapi/drm/xe_drm.h +++ b/include/uapi/drm/xe_drm.h @@ -1053,6 +1053,46 @@ struct drm_xe_vm_madvise { __u64 reserved[2]; }; +/** + * DOC: XE PMU event config IDs + * + * Check 'man perf_event_open' to use the ID's XE_PMU_XXXX listed in xe_drm.h + * in 'struct perf_event_attr' as part of perf_event_open syscall to read a + * particular event. + * + * For example to open the XE_PMU_INTERRUPTS(0): + * + * .. code-block:: C + * + * struct perf_event_attr attr; + * long long count; + * int cpu = 0; + * int fd; + * + * memset(&attr, 0, sizeof(struct perf_event_attr)); + * attr.type = type; // eg: /sys/bus/event_source/devices/xe_0000_56_00.0/type + * attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED; + * attr.use_clockid = 1; + * attr.clockid = CLOCK_MONOTONIC; + * attr.config = XE_PMU_INTERRUPTS(0); + * + * fd = syscall(__NR_perf_event_open, &attr, -1, cpu, -1, 0); + */ + +/* + * Top bits of every counter are GT id. + */ +#define __XE_PMU_GT_SHIFT (56) + +#define ___XE_PMU_OTHER(gt, x) \ + (((__u64)(x)) | ((__u64)(gt) << __XE_PMU_GT_SHIFT)) + +#define XE_PMU_INTERRUPTS(gt) ___XE_PMU_OTHER(gt, 0) +#define XE_PMU_RENDER_GROUP_BUSY(gt) ___XE_PMU_OTHER(gt, 1) +#define XE_PMU_COPY_GROUP_BUSY(gt) ___XE_PMU_OTHER(gt, 2) +#define XE_PMU_MEDIA_GROUP_BUSY(gt) ___XE_PMU_OTHER(gt, 3) +#define XE_PMU_ANY_ENGINE_GROUP_BUSY(gt) ___XE_PMU_OTHER(gt, 4) + #if defined(__cplusplus) } #endif |