From patchwork Fri Sep 29 18:14:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Adri=C3=A1n_Larumbe?= X-Patchwork-Id: 13404753 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C658E728D7 for ; Fri, 29 Sep 2023 18:16:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233634AbjI2SQj (ORCPT ); Fri, 29 Sep 2023 14:16:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233481AbjI2SQf (ORCPT ); Fri, 29 Sep 2023 14:16:35 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C9B4136; Fri, 29 Sep 2023 11:16:31 -0700 (PDT) Received: from localhost.localdomain (unknown [IPv6:2a02:8010:65b5:0:1ac0:4dff:feee:236a]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: alarumbe) by madras.collabora.co.uk (Postfix) with ESMTPSA id 90C5B66072BC; Fri, 29 Sep 2023 19:16:29 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1696011389; bh=mYgruaYpadF7TPyMvAY1L2JYW1reyXOIu0TzF0pl4zY=; h=From:To:Cc:Subject:Date:From; b=V6uFILYX6fh9oL+rqIEC4qeD3cDc0b7j9CfVcetGRJICYMPd3g4w6iSi/LRy6VuSA JaKjVqg5vTgmUEtKY6r1sESXH996IOTofHEiR0GD5jc79EBTTzNdXxfSPgpuDgCeMA NG/I3fSEjPW0i9LrE+SBoSHIWSKP9KWQ/9ctvrnlqrNCpG9aTUVF2nruCGBFMDqAMg rak8gdCOIkCXRj12c21WZj6Zt9S8G3tAyrklmKZgErk9kx/9Bre57e4ZhGgXkd037Q M7GfrSlQXK6pX6+X+Z8c7PlcfiQje+/rmV0zXV9D9s7zyM08NAeRdNs/dlSzQ7yohk LTTD8Cv7Nxlqw== From: =?utf-8?q?Adri=C3=A1n_Larumbe?= To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch, robdclark@gmail.com, quic_abhinavk@quicinc.com, dmitry.baryshkov@linaro.org, sean@poorly.run, marijn.suijten@somainline.org, robh@kernel.org, steven.price@arm.com Cc: adrian.larumbe@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, healych@amazon.com, kernel@collabora.com, tvrtko.ursulin@linux.intel.com, boris.brezillon@collabora.com Subject: [PATCH v8 0/5] Add fdinfo support to Panfrost Date: Fri, 29 Sep 2023 19:14:26 +0100 Message-ID: <20230929181616.2769345-1-adrian.larumbe@collabora.com> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This patch series adds fdinfo support to the Panfrost DRM driver. It will display a series of key:value pairs under /proc/pid/fdinfo/fd for render processes that open the Panfrost DRM file. The pairs contain basic drm gpu engine and memory region information that can either be cat by a privileged user or accessed with IGT's gputop utility. Changelog: v1: https://lore.kernel.org/lkml/bb52b872-e41b-3894-285e-b52cfc849782@arm.com/T/ v2: https://lore.kernel.org/lkml/20230901084457.5bc1ad69@collabora.com/T/ - Changed the way gpu cycles and engine time are calculated, using GPU registers and taking into account potential resets. - Split render engine values into fragment and vertex/tiler ones. - Added more fine-grained calculation of RSS size for BO's. - Implemente selection of drm-memory region size units. - Removed locking of shrinker's mutex in GEM obj status function. v3: https://lore.kernel.org/lkml/20230905184533.959171-1-adrian.larumbe@collabora.com/ - Changed fdinfo engine names to something more descriptive.; - Mentioned GPU cycle counts aren't an exact measure. - Handled the case when job->priv might be NULL. - Handled 32 bit overflow of cycle register. - Kept fdinfo drm memory stats size unit display within 10k times the previous multiplier for more accurate BO size numbers. - Removed special handling of Prime imported BO RSS. - Use rss_size only for heap objects. - Use bo->base.madv instead of specific purgeable flag. - Fixed kernel test robot warnings. v4: https://lore.kernel.org/lkml/20230912084044.955864-1-adrian.larumbe@collabora.com/ - Move cycle counter get and put to panfrost_job_hw_submit and panfrost_job_handle_{err,done} for more accuracy. - Make sure cycle counter refs are released in reset path - Drop the model param for toggling cycle counting and do leave it down to the debugfs file. - Don't disable cycle counter when togglint debugfs file, let refcounting logic handle it instead. - Remove fdinfo data nested structure definion and 'names' field - When incrementing BO RSS size in GPU MMU page fault IRQ handler, assume granuality of 2MiB for every successful mapping. - drm-file picks an fdinfo memory object size unit that doesn't lose precision. v5: https://lore.kernel.org/lkml/20230914223928.2374933-1-adrian.larumbe@collabora.com/ - Removed explicit initialisation of atomic variable for profiling mode, as it's allocated with kzalloc. - Pass engine utilisation structure to jobs rather than the file context, to avoid future misusage of the latter. - Remove double reading of cycle counter register and ktime in job deqeueue function, as the scheduler will make sure these values are read over in case of requeuing. - Moved putting of cycle counting refcnt into panfrost job dequeue. function to avoid repetition. v6: https://lore.kernel.org/lkml/c73ad42b-a8db-23c2-86c7-1a2939dba044@linux.intel.com/T/ - Fix wrong swapped-round engine time and cycle values in fdinfo drm print statements. v7: https://lore.kernel.org/lkml/20230927213133.1651169-6-adrian.larumbe@collabora.com/T/ - Make sure an object's actual RSS size is added to the overall fdinfo's purgeable and active size tally when it's both resident and purgeable or active. - Create a drm/panfrost.rst documentation file with meaning of fdinfo strings. - BUILD_BUG_ON checking the engine name array size for fdinfo. - Added copyright notices for Amazon in Panfrost's new debugfs files. - Discarded fdinfo memory stats unit size selection patch. v8: - Style improvements and addressing nitpicks. Adrián Larumbe (5): drm/panfrost: Add cycle count GPU register definitions drm/panfrost: Add fdinfo support GPU load metrics drm/panfrost: Add fdinfo support for memory stats drm/drm_file: Add DRM obj's RSS reporting function for fdinfo drm/panfrost: Implement generic DRM object RSS reporting function Documentation/gpu/drm-usage-stats.rst | 1 + Documentation/gpu/panfrost.rst | 38 +++++++++++++ drivers/gpu/drm/drm_file.c | 8 +-- drivers/gpu/drm/panfrost/Makefile | 2 + drivers/gpu/drm/panfrost/panfrost_debugfs.c | 21 ++++++++ drivers/gpu/drm/panfrost/panfrost_debugfs.h | 14 +++++ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 8 +++ drivers/gpu/drm/panfrost/panfrost_devfreq.h | 3 ++ drivers/gpu/drm/panfrost/panfrost_device.c | 2 + drivers/gpu/drm/panfrost/panfrost_device.h | 13 +++++ drivers/gpu/drm/panfrost/panfrost_drv.c | 60 ++++++++++++++++++++- drivers/gpu/drm/panfrost/panfrost_gem.c | 30 +++++++++++ drivers/gpu/drm/panfrost/panfrost_gem.h | 5 ++ drivers/gpu/drm/panfrost/panfrost_gpu.c | 41 ++++++++++++++ drivers/gpu/drm/panfrost/panfrost_gpu.h | 4 ++ drivers/gpu/drm/panfrost/panfrost_job.c | 24 +++++++++ drivers/gpu/drm/panfrost/panfrost_job.h | 5 ++ drivers/gpu/drm/panfrost/panfrost_mmu.c | 1 + drivers/gpu/drm/panfrost/panfrost_regs.h | 5 ++ include/drm/drm_gem.h | 9 ++++ 20 files changed, 290 insertions(+), 4 deletions(-) create mode 100644 Documentation/gpu/panfrost.rst create mode 100644 drivers/gpu/drm/panfrost/panfrost_debugfs.c create mode 100644 drivers/gpu/drm/panfrost/panfrost_debugfs.h base-commit: f45acf7acf75921c0409d452f0165f51a19a74fd