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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,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 CC69CC4320A for ; Mon, 26 Jul 2021 23:34:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B599F60F57 for ; Mon, 26 Jul 2021 23:34:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234126AbhGZWy2 (ORCPT ); Mon, 26 Jul 2021 18:54:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234038AbhGZWyX (ORCPT ); Mon, 26 Jul 2021 18:54:23 -0400 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 E187AC061757 for ; Mon, 26 Jul 2021 16:34:51 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id ds11-20020a17090b08cbb0290172f971883bso1389925pjb.1 for ; Mon, 26 Jul 2021 16:34:51 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=E+66KfoweN1Ee2V/z8f+apJdNLDFgl8859mlwwnYsf8=; b=bfhY6VwKlj+C3dibhtf+6FCziD4F30M0czf6J4IRYrHfmUOuY9+D+9m+J8afHMwrHp uaToPQMdviXDDvnQSs2HOIaOkldYqGRKFaN2idV1tmuk6Qb19xj/RancvYxD47v/H5+t ehvvRfrandEFu66JzyYprwJKr7jPchYza/+lMDxscdb33M+RN2FZnU5pIBqA1GqDaJzo NFwVtJq/L9vwUjpq2I9s7wAjoAvJ3UKqBSHLb0XcZQqCuCjJYDQ/kLU8RzQ5lvh7WGkQ y0qCqw28sz5urBKttycjjqnUP9tXKccGSqpSKZM1uZZ6bUhZAUPWl547KCCtWOIs2A6Z EJ4w== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=E+66KfoweN1Ee2V/z8f+apJdNLDFgl8859mlwwnYsf8=; b=WCBSig/D1ry1UvbUwIdjI1MjYaHNnm+t/xIcYFGLnEkK8D/nld4YMPVbfgO3WTtpJX QBYNmb92T6aR/ayk24UBkHNF54IJI76Uu1NUJjFbhnwnAO9SJxVikpAdcUD7Q18p+4XL CFgo+7XA+8wEwiPKWCNrPpUBNQjrLVZARQMSEsO9LeCl/qfXyAgsKvUwGorA029QpAiZ kMjDWgy5+2UB5hGlCcqXstHj7L7WdXBrC8BRZFn2gxgHDkQh/3B4fIy+FV14tN5hRpna 3wQG7onkLXEweyJpLYNh8eNwKGtk6Q+uSM8xsJykiYBlTE5LApY0SNmo00RQbaw/VZkK HPiA== X-Gm-Message-State: AOAM5328QxIKtVa0jURDY1YUuMeC6VXoSxnWMP0OzP7MD881tBa9sYjt ASjdd5G9qYuDJIJqG+NBI1c= X-Google-Smtp-Source: ABdhPJwhCMg1vxAUIgBpCE4SBwS5qWyulr+AZ6krJy2fdCYh/e6aJXgSEQEuwjqmqVRzGiLIeX4Plw== X-Received: by 2002:a17:90a:6a86:: with SMTP id u6mr1319647pjj.207.1627342491492; Mon, 26 Jul 2021 16:34:51 -0700 (PDT) Received: from localhost ([2601:1c0:5200:a6:307:a401:7b76:c6e5]) by smtp.gmail.com with ESMTPSA id u6sm1152304pfn.31.2021.07.26.16.34.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jul 2021 16:34:50 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: Daniel Vetter , Matthew Brost , =?UTF-8?q?Christian=20K=C3=B6nig?= , Rob Clark , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , linux-kernel@vger.kernel.org (open list) Subject: [RFC 3/4] drm/atomic-helper: Set fence deadline for vblank Date: Mon, 26 Jul 2021 16:38:50 -0700 Message-Id: <20210726233854.2453899-4-robdclark@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210726233854.2453899-1-robdclark@gmail.com> References: <20210726233854.2453899-1-robdclark@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rob Clark For an atomic commit updating a single CRTC (ie. a pageflip) calculate the next vblank time, and inform the fence(s) of that deadline. Signed-off-by: Rob Clark --- drivers/gpu/drm/drm_atomic_helper.c | 36 +++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index bc3487964fb5..f81b20775b15 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1406,6 +1406,40 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, } EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables); +/* + * For atomic updates which touch just a single CRTC, calculate the time of the + * next vblank, and inform all the fences of the of the deadline. + */ +static void set_fence_deadline(struct drm_device *dev, + struct drm_atomic_state *state) +{ + struct drm_crtc *crtc, *wait_crtc = NULL; + struct drm_crtc_state *new_crtc_state; + struct drm_plane *plane; + struct drm_plane_state *new_plane_state; + ktime_t vbltime; + int i; + + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { + if (!wait_crtc) + return; + wait_crtc = crtc; + } + + /* If no CRTCs updated, then nothing to do: */ + if (!wait_crtc) + return; + + if (drm_crtc_next_vblank_time(wait_crtc, &vbltime)) + return; + + for_each_new_plane_in_state (state, plane, new_plane_state, i) { + if (!new_plane_state->fence) + continue; + dma_fence_set_deadline(new_plane_state->fence, vbltime); + } +} + /** * drm_atomic_helper_wait_for_fences - wait for fences stashed in plane state * @dev: DRM device @@ -1435,6 +1469,8 @@ int drm_atomic_helper_wait_for_fences(struct drm_device *dev, struct drm_plane_state *new_plane_state; int i, ret; + set_fence_deadline(dev, state); + for_each_new_plane_in_state(state, plane, new_plane_state, i) { if (!new_plane_state->fence) continue; -- 2.31.1