From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id A4A0410E605 for ; Thu, 28 Sep 2023 11:05:33 +0000 (UTC) From: Francois Dugast To: igt-dev@lists.freedesktop.org Date: Thu, 28 Sep 2023 11:05:03 +0000 Message-Id: <20230928110516.7-2-francois.dugast@intel.com> In-Reply-To: <20230928110516.7-1-francois.dugast@intel.com> References: <20230928110516.7-1-francois.dugast@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH v4 01/14] 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: From: Rodrigo Vivi 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 | 40 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/include/drm-uapi/xe_drm.h b/include/drm-uapi/xe_drm.h index 804c02270..13cd6a73d 100644 --- a/include/drm-uapi/xe_drm.h +++ b/include/drm-uapi/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 -- 2.34.1