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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 DD80DC433E2 for ; Mon, 31 Aug 2020 15:31:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF28321531 for ; Mon, 31 Aug 2020 15:31:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887876; bh=8CtIqjoJ1SacnqIRXbMc/xIzgI0xr7BYm3qPaqxHkiQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=1UYXjOCFp8hqoYVjiisOudQSN43L3KGuCYV6ZLssqoQJ/tIE7yT0N2h5K8GC6lkJk rIaCw2ecj/KNlCOhp4lzD8BTct/ZIPsMRNEZMjR97jLBe9lhfY2S5EliREpRxs5Sui ZmaC5z6IWVO8zWk0GDOku33gAPMenPIrXd2v5xH0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728822AbgHaPbM (ORCPT ); Mon, 31 Aug 2020 11:31:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:41012 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728722AbgHaPa4 (ORCPT ); Mon, 31 Aug 2020 11:30:56 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 617D22083E; Mon, 31 Aug 2020 15:30:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887855; bh=8CtIqjoJ1SacnqIRXbMc/xIzgI0xr7BYm3qPaqxHkiQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nqF9PlkkzTELR9ousLPemeWA5tFLVOAjoTQsl0Y6L3KD1FFUC100HDV4LztY2Ctu2 e1EG3wdmqc22l6f3LtVAZJsskShI6nTxXN2IH+Lm3PqMMGjfcqq8lymB/78NqxrJmU LwlKJlFpVUjKTC4YXWagGgI5LRJ/leBtAUZ9kVQE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Rob Clark , Stephen Boyd , Sasha Levin , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.4 09/23] drm/msm: enable vblank during atomic commits Date: Mon, 31 Aug 2020 11:30:25 -0400 Message-Id: <20200831153039.1024302-9-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200831153039.1024302-1-sashal@kernel.org> References: <20200831153039.1024302-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rob Clark [ Upstream commit 43906812eaab06423f56af5cca9a9fcdbb4ac454 ] This has roughly the same effect as drm_atomic_helper_wait_for_vblanks(), basically just ensuring that vblank accounting is enabled so that we get valid timestamp/seqn on pageflip events. Signed-off-by: Rob Clark Tested-by: Stephen Boyd Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/msm_atomic.c | 36 ++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index 5ccfad794c6a5..561bfa48841c3 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -27,6 +27,34 @@ int msm_atomic_prepare_fb(struct drm_plane *plane, return msm_framebuffer_prepare(new_state->fb, kms->aspace); } +/* + * Helpers to control vblanks while we flush.. basically just to ensure + * that vblank accounting is switched on, so we get valid seqn/timestamp + * on pageflip events (if requested) + */ + +static void vblank_get(struct msm_kms *kms, unsigned crtc_mask) +{ + struct drm_crtc *crtc; + + for_each_crtc_mask(kms->dev, crtc, crtc_mask) { + if (!crtc->state->active) + continue; + drm_crtc_vblank_get(crtc); + } +} + +static void vblank_put(struct msm_kms *kms, unsigned crtc_mask) +{ + struct drm_crtc *crtc; + + for_each_crtc_mask(kms->dev, crtc, crtc_mask) { + if (!crtc->state->active) + continue; + drm_crtc_vblank_put(crtc); + } +} + static void msm_atomic_async_commit(struct msm_kms *kms, int crtc_idx) { unsigned crtc_mask = BIT(crtc_idx); @@ -44,6 +72,8 @@ static void msm_atomic_async_commit(struct msm_kms *kms, int crtc_idx) kms->funcs->enable_commit(kms); + vblank_get(kms, crtc_mask); + /* * Flush hardware updates: */ @@ -58,6 +88,8 @@ static void msm_atomic_async_commit(struct msm_kms *kms, int crtc_idx) kms->funcs->wait_flush(kms, crtc_mask); trace_msm_atomic_wait_flush_finish(crtc_mask); + vblank_put(kms, crtc_mask); + mutex_lock(&kms->commit_lock); kms->funcs->complete_commit(kms, crtc_mask); mutex_unlock(&kms->commit_lock); @@ -221,6 +253,8 @@ void msm_atomic_commit_tail(struct drm_atomic_state *state) */ kms->pending_crtc_mask &= ~crtc_mask; + vblank_get(kms, crtc_mask); + /* * Flush hardware updates: */ @@ -235,6 +269,8 @@ void msm_atomic_commit_tail(struct drm_atomic_state *state) kms->funcs->wait_flush(kms, crtc_mask); trace_msm_atomic_wait_flush_finish(crtc_mask); + vblank_put(kms, crtc_mask); + mutex_lock(&kms->commit_lock); kms->funcs->complete_commit(kms, crtc_mask); mutex_unlock(&kms->commit_lock); -- 2.25.1