From patchwork Mon Jul 26 14:43:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 485910 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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 2A05EC4320A for ; Mon, 26 Jul 2021 14:39:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B06B60EB2 for ; Mon, 26 Jul 2021 14:39:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234389AbhGZN7X (ORCPT ); Mon, 26 Jul 2021 09:59:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233206AbhGZN7W (ORCPT ); Mon, 26 Jul 2021 09:59:22 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC198C061757; Mon, 26 Jul 2021 07:39:49 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id mt6so13197269pjb.1; Mon, 26 Jul 2021 07:39:49 -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=yYvK9aTzc6a6mw4NkjoqvsdrfloQMHrbtNcPQkcDqvs=; b=sNrV1hIjNLb+jarQ5Td+Ia164crR90C5uz98OgfCVUBSZZB7/clHXhcPJv6x8DJbuN rKAl8/Ar8I6pkKdPNSovPLl7JlOOgFjvJXzAuW26ut/CUiuT1JWum4Hevp1VNL0gph5m GmmJSTraAZ+BgqAIvbTV6c1bYkAKqAsESejOKo/kIlGO5LEBQJpHURthQyl65kK0s2vs TdMMaM4c4ifKl6/FWHeBy4+0vUT59SfiX1RCnXvuXjBbVqCohj7oQObXCI/3vERRIifH K6xvLCFG790+7pwl0Wr+ujMKC14Q3gls9yn+gHe4y7PvpALLJSMTDYylu+L2Ut6CFo+4 jGvA== 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=yYvK9aTzc6a6mw4NkjoqvsdrfloQMHrbtNcPQkcDqvs=; b=ZOnPajQJHWOOMeZ1gmGnP9XSMitSjtHy/djJErzRnpOCXQn4wMK9zqPyjpvNVit6cj /viDXQ+X1KcpyKgocma1ewcVLMta358mpk0QYlLRNP7kPT1fuar3q5jINz49Qy9vYCzC S1UyzVjNycXU+ldifCkf/MTEwYx7sig0nyhxO1JDaXcDT498NtPD4UBaJgQGZcbo2vFu pP68PZ8zuXNaBwBBDHUcT3J1e8ftCjV6F0qfdQz+eToruAMcPUXdvJmFdtBHnhG95zQu C8T0UiG43RYdAC31Aht7MFmjh8iyjyf2EC/7vOCUtYq5JtBaOXQMsYlxLt1LFP3IkrsH XjKg== X-Gm-Message-State: AOAM531IpUXmjuSTyLb1J3+MnNMQKcFows5VVllxs90zE9uKBFipmJyY aElaHNXKBXqNu0aKGaJTk+U= X-Google-Smtp-Source: ABdhPJyANxBEIcujpjY/aUnkk7Nm6OAiHljjrusdLSVto/jwB7ZIzT4K22rrIQ3wqUrjA6/cHXMBeg== X-Received: by 2002:a17:90b:1e46:: with SMTP id pi6mr8048098pjb.57.1627310389230; Mon, 26 Jul 2021 07:39:49 -0700 (PDT) Received: from localhost ([2601:1c0:5200:a6:307:a401:7b76:c6e5]) by smtp.gmail.com with ESMTPSA id d31sm28342226pgd.33.2021.07.26.07.39.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jul 2021 07:39:48 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: Rob Clark , freedreno@lists.freedesktop.org (open list:DRM DRIVER FOR MSM ADRENO GPU), 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) Subject: [PATCH 0/2] drm/msm: Reduce fence signal latency Date: Mon, 26 Jul 2021 07:43:56 -0700 Message-Id: <20210726144359.2179302-1-robdclark@gmail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Rob Clark A couple tweaks to reduce fence signal latency. Rob Clark (2): drm/msm: Let fences read directly from memptrs drm/msm: Signal fences sooner drivers/gpu/drm/msm/msm_fence.c | 11 +++++-- drivers/gpu/drm/msm/msm_fence.h | 41 +++++++++++++++++++++++--- drivers/gpu/drm/msm/msm_gpu.c | 44 ++++++++++++++++------------ drivers/gpu/drm/msm/msm_ringbuffer.c | 2 +- 4 files changed, 73 insertions(+), 25 deletions(-)