From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Rodrigo Vivi To: , Date: Tue, 19 Sep 2023 10:19:44 -0400 Message-ID: <20230919142000.91363-2-rodrigo.vivi@intel.com> In-Reply-To: <20230919142000.91363-1-rodrigo.vivi@intel.com> References: <20230919142000.91363-1-rodrigo.vivi@intel.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t 01/16] drm-uapi/xe_drm: Align with new PMU interface List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rodrigo Vivi Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Align with commit ("drm/xe/pmu: Enable PMU interface") Cc: Francois Dugast Cc: Aravind Iddamsetty Signed-off-by: Francois Dugast Signed-off-by: Rodrigo Vivi --- include/drm-uapi/xe_drm.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/include/drm-uapi/xe_drm.h b/include/drm-uapi/xe_drm.h index 804c02270..6aaa8517c 100644 --- a/include/drm-uapi/xe_drm.h +++ b/include/drm-uapi/xe_drm.h @@ -1053,6 +1053,44 @@ struct drm_xe_vm_madvise { __u64 reserved[2]; }; +/** + * XE PMU event config IDs + * + * Check 'man perf_event_open' to use these ID's 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 -- 2.41.0