From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C882C4363A for ; Fri, 23 Oct 2020 16:50:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA722241A4 for ; Fri, 23 Oct 2020 16:50:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XWd4i3Yx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751546AbgJWQuF (ORCPT ); Fri, 23 Oct 2020 12:50:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750451AbgJWQuE (ORCPT ); Fri, 23 Oct 2020 12:50:04 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E45FC0613CE; Fri, 23 Oct 2020 09:50:04 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id r3so1167521plo.1; Fri, 23 Oct 2020 09:50:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=nBPnkSzxv9sPok1QPqQrqR3RAN+aeKw0AQbLebVLUkg=; b=XWd4i3YxdLK6VWhNOtDxDiaINl8/TMi05tnnJR9puUiJz/lyGwupODZ2BioSlxNWAs WvUKyvqWwQHs+h636Ih+DDVJYM8Dmdr4psbtqQMdRBJve8Yf1B2KrTOc5WbQVzVGIV5Q YBom1yXreJCyTzkwWwJYLdBwzHSbnxdCC2Vh0ES3F5gyr9fgwQk1Gy+CV/M9WHOgNe// SmHRT4Yrd+MReu0/5yrfi/wuUGJUqgqiN11WzCBkP3hxzO2YS+OFexsatzjKCdHGsebc QyOTPupwrn6DlUxEf1+QnfH5zypSUxXK6W8vJ9VYTCoO9ncFSfYuOuthfXTeFJOaQvFT gdGA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=nBPnkSzxv9sPok1QPqQrqR3RAN+aeKw0AQbLebVLUkg=; b=BezStE185EB/DF2TKtW7TU/1IFiPrcHNqt+kDv9TCfCYK4Q8UqoMmqpSEle5kCIqWS ZTTslpkzWDI21xnHGL1NTNlp20k/N4ArKrEZ6EPP2g4BqSvXJrwz3hE09r0JXeVKB0m9 ku6R6L6/St6zWPiV11YgPVvh2Bojvxdb1fleydQNv3BLc42Ga981bQTr2ZgbIr1Qphje DbV+matKM4zhWpvO1CXaWQnGcGogIGmIw24KD72iUJzjhR+KQoPyDtYoSjWVQVFCnb0P 8r8dM05T6Teb2om45+9kEL+qccdKYEJHt4iK8m8pHy284EE827/+Vl4zuwevdOemBGvD kTvA== X-Gm-Message-State: AOAM530bw3CU61ON8t7L/0Hr46Um4rAsgYNpeFNWx6V4i87EWERVwt7m e5VGr/wa4mjCILNzYmD8PgI= X-Google-Smtp-Source: ABdhPJyHkDmRF2Pq6NHPnw+ueoQTE8icbQuxnnOlfwxFMwu6/Tb1NJ3F9e0raXPtHEKsO3ge9RuTEA== X-Received: by 2002:a17:902:9a84:b029:d2:9390:5e6 with SMTP id w4-20020a1709029a84b02900d2939005e6mr3262382plp.37.1603471803833; Fri, 23 Oct 2020 09:50:03 -0700 (PDT) Received: from localhost (c-73-25-156-94.hsd1.or.comcast.net. [73.25.156.94]) by smtp.gmail.com with ESMTPSA id e4sm2363441pgg.37.2020.10.23.09.50.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Oct 2020 09:50:02 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Rob Clark , Abhinav Kumar , Akhil P Oommen , AngeloGioacchino Del Regno , Brian Masney , Christophe JAILLET , Daniel Vetter , Emil Velikov , Eric Anholt , Harigovindan P , Jeffrey Hugo , Jonathan Marek , Jordan Crouse , "Kristian H. Kristensen" , linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER SHARING FRAMEWORK), linux-kernel@vger.kernel.org (open list), linux-media@vger.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK), Matthias Kaehlcke , Maxime Ripard , Rajendra Nayak , Sam Ravnborg , Sharat Masetty , Thomas Zimmermann Subject: [PATCH v4 00/23] drm/msm: de-struct_mutex-ification Date: Fri, 23 Oct 2020 09:51:01 -0700 Message-Id: <20201023165136.561680-1-robdclark@gmail.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Rob Clark This doesn't remove *all* the struct_mutex, but it covers the worst of it, ie. shrinker/madvise/free/retire. The submit path still uses struct_mutex, but it still needs *something* serialize a portion of the submit path, and lock_stat mostly just shows the lock contention there being with other submits. And there are a few other bits of struct_mutex usage in less critical paths (debugfs, etc). But this seems like a reasonable step in the right direction. v2: teach lockdep about shrinker locking patters (danvet) and convert to obj->resv locking (danvet) v3: fix get_vaddr locking for legacy userspace (relocs), devcoredump, and rd/hangrd v4: couple minor review comments (krh), fix deadlock with imported dma-buf's (ie. from v4l2, etc) Rob Clark (23): drm/msm: Fix a couple incorrect usages of get_vaddr_active() drm/msm/gem: Add obj->lock wrappers drm/msm/gem: Rename internal get_iova_locked helper drm/msm/gem: Move prototypes to msm_gem.h drm/msm/gem: Add some _locked() helpers drm/msm/gem: Move locking in shrinker path drm/msm/submit: Move copy_from_user ahead of locking bos drm/msm: Do rpm get sooner in the submit path drm/msm/gem: Switch over to obj->resv for locking drm/msm: Use correct drm_gem_object_put() in fail case drm/msm: Drop chatty trace drm/msm: Move update_fences() drm/msm: Add priv->mm_lock to protect active/inactive lists drm/msm: Document and rename preempt_lock drm/msm: Protect ring->submits with it's own lock drm/msm: Refcount submits drm/msm: Remove obj->gpu drm/msm: Drop struct_mutex from the retire path drm/msm: Drop struct_mutex in free_object() path drm/msm: Remove msm_gem_free_work drm/msm: Drop struct_mutex in madvise path drm/msm: Drop struct_mutex in shrinker path drm/msm: Don't implicit-sync if only a single ring drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 6 +- drivers/gpu/drm/msm/adreno/a5xx_preempt.c | 12 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 6 +- drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c | 1 + drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 1 + drivers/gpu/drm/msm/dsi/dsi_host.c | 1 + drivers/gpu/drm/msm/msm_debugfs.c | 7 + drivers/gpu/drm/msm/msm_drv.c | 21 +- drivers/gpu/drm/msm/msm_drv.h | 73 +----- drivers/gpu/drm/msm/msm_fbdev.c | 1 + drivers/gpu/drm/msm/msm_gem.c | 271 +++++++++++----------- drivers/gpu/drm/msm/msm_gem.h | 133 +++++++++-- drivers/gpu/drm/msm/msm_gem_shrinker.c | 81 ++----- drivers/gpu/drm/msm/msm_gem_submit.c | 164 ++++++++----- drivers/gpu/drm/msm/msm_gpu.c | 110 +++++---- drivers/gpu/drm/msm/msm_gpu.h | 5 +- drivers/gpu/drm/msm/msm_rd.c | 2 +- drivers/gpu/drm/msm/msm_ringbuffer.c | 3 +- drivers/gpu/drm/msm/msm_ringbuffer.h | 13 +- 19 files changed, 506 insertions(+), 405 deletions(-) -- 2.26.2