From patchwork Thu Sep 14 22:38:38 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: 13386164 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 3166ECA553F for ; Thu, 14 Sep 2023 22:39:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230131AbjINWjq (ORCPT ); Thu, 14 Sep 2023 18:39:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42042 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230083AbjINWjo (ORCPT ); Thu, 14 Sep 2023 18:39:44 -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 C69E52700; Thu, 14 Sep 2023 15:39:39 -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 C04326607350; Thu, 14 Sep 2023 23:39:36 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1694731176; bh=OK5infk9BxygcIXGmk8vlYqu+naQhzVw1gYQcdoroDg=; h=From:To:Cc:Subject:Date:From; b=TzDK69k4d8ymxZVj/G8l3kJa/SXAfSMG/EbGV9Zx/eLAWys8cvuUCZCiayWuULxMj o8PEZ52dJvIRdVpVZx2M4054Yia58+6rOdhFZoTPzp+ufVmcKZItPHW56TUTrrr34l o8zu+BRvmzP6ULaPkLV1kRTNPSYx5r6KLKRnNkfbLePTHebynrzRNu88kJtco85L4S 0XYEWBy/2S6ar2RJuiBcVVU91P5oXhqdui8V8ALF7ctLVSAddKqwildRimyUtmqpTk 298uxoEWO3Eg7OlXliqOW1TalVgCmKoNpezrOSKwfnentInQAX/IvJTL3Sz0+KjOPn kdDEpkNzxgxaQ== 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 Subject: [PATCH v5 0/6] Add fdinfo support to Panfrost Date: Thu, 14 Sep 2023 23:38:38 +0100 Message-ID: <20230914223928.2374933-1-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: - 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. Adrián Larumbe (6): 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 drm/drm-file: Show finer-grained BO sizes in drm_show_memory_stats drivers/gpu/drm/drm_file.c | 10 +++- drivers/gpu/drm/panfrost/Makefile | 2 + drivers/gpu/drm/panfrost/panfrost_debugfs.c | 20 +++++++ drivers/gpu/drm/panfrost/panfrost_debugfs.h | 13 +++++ 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 | 59 ++++++++++++++++++++- drivers/gpu/drm/panfrost/panfrost_gem.c | 29 ++++++++++ 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 ++++ 18 files changed, 250 insertions(+), 3 deletions(-) create mode 100644 drivers/gpu/drm/panfrost/panfrost_debugfs.c create mode 100644 drivers/gpu/drm/panfrost/panfrost_debugfs.h base-commit: f45acf7acf75921c0409d452f0165f51a19a74fd