From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5EA366E83C for ; Wed, 25 Mar 2020 21:50:06 +0000 (UTC) From: Umesh Nerlige Ramappa Date: Wed, 25 Mar 2020 14:50:03 -0700 Message-Id: <20200325215005.5489-2-umesh.nerlige.ramappa@intel.com> In-Reply-To: <20200325215005.5489-1-umesh.nerlige.ramappa@intel.com> References: <20200325215005.5489-1-umesh.nerlige.ramappa@intel.com> MIME-Version: 1.0 Subject: [igt-dev] [PATCH 1/3] include/drm-uapi: Update i915_drm.h for perf OA APIs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: igt-dev@lists.freedesktop.org, Lionel G Landwerlin , Ashutosh Dixit List-ID: From: Lionel Landwerlin Add APIs to configure poll delay in perf OA. v2: (Umesh) - Remove interrupt and flush APIs - Change commit message v3: (Umesh) - Rebase - Rename uapi parameter used to set poll timer interval v4: - Update uapi comment to reflect the kerne uapi header (Ashutosh) Signed-off-by: Lionel Landwerlin Signed-off-by: Umesh Nerlige Ramappa --- include/drm-uapi/i915_drm.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/include/drm-uapi/i915_drm.h b/include/drm-uapi/i915_drm.h index 3794e768..2b55af13 100644 --- a/include/drm-uapi/i915_drm.h +++ b/include/drm-uapi/i915_drm.h @@ -1969,6 +1969,30 @@ enum drm_i915_perf_property_id { */ DRM_I915_PERF_PROP_HOLD_PREEMPTION, + /** + * Specifying this pins all contexts to the specified SSEU power + * configuration for the duration of the recording. + * + * This parameter's value is a pointer to a struct + * drm_i915_gem_context_param_sseu. + * + * This property is available in perf revision 4. + */ + DRM_I915_PERF_PROP_GLOBAL_SSEU, + + /** + * This optional parameter specifies the timer interval in nanoseconds + * at which the i915 driver will check the OA buffer for available data. + * Minimum allowed value is 100 microseconds. A default value is used by + * the driver if this parameter is not specified. Note that larger timer + * values will reduce cpu consumption during OA perf captures. However, + * excessively large values would potentially result in OA buffer + * overwrites as captures reach end of the OA buffer. + * + * This property is available in perf revision 5. + */ + DRM_I915_PERF_PROP_POLL_OA_PERIOD, + DRM_I915_PERF_PROP_MAX /* non-ABI */ }; -- 2.20.1 _______________________________________________ igt-dev mailing list igt-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/igt-dev