Message ID | 20230224200155.2510320-1-robdclark@gmail.com (mailing list archive) |
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Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from <linux-media-owner@vger.kernel.org>) id 1pVeGb-007vol-GZ; Fri, 24 Feb 2023 20:02:05 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229770AbjBXUCC (ORCPT <rfc822;mkrufky@linuxtv.org> + 1 other); Fri, 24 Feb 2023 15:02:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229481AbjBXUCC (ORCPT <rfc822;linux-media@vger.kernel.org>); Fri, 24 Feb 2023 15:02:02 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A55A614EA6; Fri, 24 Feb 2023 12:02:00 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id nw10-20020a17090b254a00b00233d7314c1cso3954236pjb.5; Fri, 24 Feb 2023 12:02:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=mk1VF7nfT+6id+DUlBftm181VOn00OpXZ9aoQ8/9Ri4=; b=lyvITwMHa5/MbF1J88r6mzMkAUSoXLwCAGhy6wsMTOayyUihm+WpWPPkxpvWAdS7vi NXhNb8mywFTPtQ83mEPdA5LWmVb5FdU7PBfd/io2R9mg+tm2sRs+7Tc7WSb9kCYdCnnm h3PvF0uwo/nt5wu53SbYYoOjkz2DDck2XcH9yzzK4GjjlgXLsL64hVw+y3akAQd/BH5h mip4ouSJlaJt/Vjv9FwgJgl6hpMNrtfehzmr+LjVOLeC7g2RKPLxs+huy11MC2XYtvwJ JGK2egmAG9YZn1hGsA7YUaRyl/fSgPa35jU0zjEIuB+tDD2AfuBCQrHiNue8hYzFZgqJ gBjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=mk1VF7nfT+6id+DUlBftm181VOn00OpXZ9aoQ8/9Ri4=; b=6yIeOD28L+LEkZy8tAnHuqiPL3SfJFtg4JPer1cv3JLG82YaFiz59hepulOcpi9ecV XtBqWk8rTGg5NuZW1SnhuSVJ7WFs+5s+jswZR7APQlmckeyUe9Pb6+Gu3cFiMZHZaAIv a1R6Z0mBIL5fntiw1E/MFu05MRx64h/pxmPGviG4Qpw5jTAQEeWN8zQDyadr6ELXXV2F WRMtP3RDDuyAHuGo/Z9+ZlVxpi/eLb2sOEsXAJAdrenv9wjuCg3macigUkB8/OnpGuSN px+4GqCG1RDyq9BpKSmnm8MQjU7lt7aZQtzjP26Y2Q9OnPfRl6yH+PkZt7Cy64WDvOs8 VhPg== X-Gm-Message-State: AO0yUKWadohWU1PUuKn+WzNvfnepR7Riv0waXWysHxzl0LVV0MdZCHaZ fo5m9AJl2m0fuNmDqG9h6iU= X-Google-Smtp-Source: AK7set/MCGgw4sWMEQil+Zu1uL8C35OoLNVcgddzAVBaEcb5RsD58//mSqRogHKbudTmp5Q9jYP+Pw== X-Received: by 2002:a17:90a:19c5:b0:237:1f17:68ad with SMTP id 5-20020a17090a19c500b002371f1768admr15713350pjj.18.1677268919978; Fri, 24 Feb 2023 12:01:59 -0800 (PST) Received: from localhost ([2a00:79e1:abd:4a00:61b:48ed:72ab:435b]) by smtp.gmail.com with ESMTPSA id t12-20020a17090ae50c00b002376d85844dsm31654pjy.51.2023.02.24.12.01.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Feb 2023 12:01:59 -0800 (PST) From: Rob Clark <robdclark@gmail.com> To: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org, Daniel Vetter <daniel@ffwll.ch>, =?utf-8?q?Christian_K=C3=B6nig?= <ckoenig.leichtzumerken@gmail.com>, =?utf-8?q?Michel_D=C3=A4nzer?= <michel@daenzer.net>, Tvrtko Ursulin <tvrtko.ursulin@intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Alex Deucher <alexander.deucher@amd.com>, Pekka Paalanen <ppaalanen@gmail.com>, Simon Ser <contact@emersion.fr>, Luben Tuikov <luben.tuikov@amd.com>, Rob Clark <robdclark@chromium.org>, Abhinav Kumar <quic_abhinavk@quicinc.com>, Dmitry Baryshkov <dmitry.baryshkov@linaro.org>, Douglas Anderson <dianders@chromium.org>, Gustavo Padovan <gustavo@padovan.org>, intel-gfx@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER SHARING FRAMEWORK), linux-arm-msm@vger.kernel.org (open list:DRM DRIVER FOR MSM ADRENO GPU), linux-kernel@vger.kernel.org (open list), linux-media@vger.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK), Liu Shixin <liushixin2@huawei.com>, Sean Paul <sean@poorly.run>, Stephen Boyd <swboyd@chromium.org>, Vinod Koul <vkoul@kernel.org>, Vinod Polimera <quic_vpolimer@quicinc.com> Subject: [PATCH v6 00/15] dma-fence: Deadline awareness Date: Fri, 24 Feb 2023 12:01:28 -0800 Message-Id: <20230224200155.2510320-1-robdclark@gmail.com> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-media.vger.kernel.org> X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,FREEMAIL_FORGED_FROMDOMAIN=0.001,FREEMAIL_FROM=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no |
Series |
dma-fence: Deadline awareness
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Message
Rob Clark
Feb. 24, 2023, 8:01 p.m. UTC
From: Rob Clark <robdclark@chromium.org>
This series adds a deadline hint to fences, so realtime deadlines
such as vblank can be communicated to the fence signaller for power/
frequency management decisions.
This is partially inspired by a trick i915 does, but implemented
via dma-fence for a couple of reasons:
1) To continue to be able to use the atomic helpers
2) To support cases where display and gpu are different drivers
This iteration adds a dma-fence ioctl to set a deadline (both to
support igt-tests, and compositors which delay decisions about which
client buffer to display), and a sw_sync ioctl to read back the
deadline. IGT tests utilizing these can be found at:
https://gitlab.freedesktop.org/robclark/igt-gpu-tools/-/commits/fence-deadline
v1: https://patchwork.freedesktop.org/series/93035/
v2: Move filtering out of later deadlines to fence implementation
to avoid increasing the size of dma_fence
v3: Add support in fence-array and fence-chain; Add some uabi to
support igt tests and userspace compositors.
v4: Rebase, address various comments, and add syncobj deadline
support, and sync_file EPOLLPRI based on experience with perf/
freq issues with clvk compute workloads on i915 (anv)
v5: Clarify that this is a hint as opposed to a more hard deadline
guarantee, switch to using u64 ns values in UABI (still absolute
CLOCK_MONOTONIC values), drop syncobj related cap and driver
feature flag in favor of allowing count_handles==0 for probing
kernel support.
v6: Re-work vblank helper to calculate time of _start_ of vblank,
and work correctly if the last vblank event was more than a
frame ago. Add (mostly unrelated) drm/msm patch which also
uses the vblank helper. Use dma_fence_chain_contained(). More
verbose syncobj UABI comments. Drop DMA_FENCE_FLAG_HAS_DEADLINE_BIT.
Rob Clark (15):
dma-buf/dma-fence: Add deadline awareness
dma-buf/fence-array: Add fence deadline support
dma-buf/fence-chain: Add fence deadline support
dma-buf/dma-resv: Add a way to set fence deadline
dma-buf/sync_file: Add SET_DEADLINE ioctl
dma-buf/sync_file: Support (E)POLLPRI
dma-buf/sw_sync: Add fence deadline support
drm/scheduler: Add fence deadline support
drm/syncobj: Add deadline support for syncobj waits
drm/vblank: Add helper to get next vblank time
drm/atomic-helper: Set fence deadline for vblank
drm/msm: Add deadline based boost support
drm/msm: Add wait-boost support
drm/msm/atomic: Switch to vblank_start helper
drm/i915: Add deadline based boost support
drivers/dma-buf/dma-fence-array.c | 11 ++++
drivers/dma-buf/dma-fence-chain.c | 12 ++++
drivers/dma-buf/dma-fence.c | 20 +++++++
drivers/dma-buf/dma-resv.c | 22 ++++++++
drivers/dma-buf/sw_sync.c | 58 +++++++++++++++++++
drivers/dma-buf/sync_debug.h | 2 +
drivers/dma-buf/sync_file.c | 27 +++++++++
drivers/gpu/drm/drm_atomic_helper.c | 36 ++++++++++++
drivers/gpu/drm/drm_syncobj.c | 64 ++++++++++++++++-----
drivers/gpu/drm/drm_vblank.c | 52 ++++++++++++++---
drivers/gpu/drm/i915/i915_request.c | 20 +++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 15 -----
drivers/gpu/drm/msm/msm_atomic.c | 8 ++-
drivers/gpu/drm/msm/msm_drv.c | 12 ++--
drivers/gpu/drm/msm/msm_fence.c | 74 +++++++++++++++++++++++++
drivers/gpu/drm/msm/msm_fence.h | 20 +++++++
drivers/gpu/drm/msm/msm_gem.c | 5 ++
drivers/gpu/drm/msm/msm_kms.h | 8 ---
drivers/gpu/drm/scheduler/sched_fence.c | 46 +++++++++++++++
drivers/gpu/drm/scheduler/sched_main.c | 2 +-
include/drm/drm_vblank.h | 1 +
include/drm/gpu_scheduler.h | 17 ++++++
include/linux/dma-fence.h | 19 +++++++
include/linux/dma-resv.h | 2 +
include/uapi/drm/drm.h | 17 ++++++
include/uapi/drm/msm_drm.h | 14 ++++-
include/uapi/linux/sync_file.h | 26 +++++++++
27 files changed, 555 insertions(+), 55 deletions(-)