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Wed, 31 Jul 2019 11:04:39 +0000 Received: from VI1PR08MB5488.eurprd08.prod.outlook.com ([fe80::c091:c28c:bb1a:5236]) by VI1PR08MB5488.eurprd08.prod.outlook.com ([fe80::c091:c28c:bb1a:5236%2]) with mapi id 15.20.2115.005; Wed, 31 Jul 2019 11:04:39 +0000 From: "Lowry Li (Arm Technology China)" To: Liviu Dudau , "james qian wang (Arm Technology China)" , "maarten.lankhorst@linux.intel.com" , "seanpaul@chromium.org" , "airlied@linux.ie" , "daniel@ffwll.ch" , Brian Starkey CC: "Julien Yin (Arm Technology China)" , "maxime.ripard@bootlin.com" , "eric@anholt.net" , "kieran.bingham+renesas@ideasonboard.com" , "sean@poorly.run" , "laurent.pinchart@ideasonboard.com" , "Jonathan Chai (Arm Technology China)" , Ayan Halder , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" , nd Subject: [PATCH v1 1/2] drm: Free the writeback_job when it with an empty fb Thread-Topic: [PATCH v1 1/2] drm: Free the writeback_job when it with an empty fb Thread-Index: AQHVR4++ZQXRcCwwSUeRbKZ2hesp5g== Date: Wed, 31 Jul 2019 11:04:38 +0000 Message-ID: <1564571048-15029-2-git-send-email-lowry.li@arm.com> References: <1564571048-15029-1-git-send-email-lowry.li@arm.com> In-Reply-To: <1564571048-15029-1-git-send-email-lowry.li@arm.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [113.29.88.7] x-clientproxiedby: SG2PR03CA0127.apcprd03.prod.outlook.com (2603:1096:4:91::31) To VI1PR08MB5488.eurprd08.prod.outlook.com (2603:10a6:803:137::22) Authentication-Results-Original: spf=none (sender IP is ) smtp.mailfrom=Lowry.Li@arm.com; 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With this change, the driver users will not check empty fb case any more. So refined accordingly. Signed-off-by: Lowry Li (Arm Technology China) Reviewed-by: Liviu Dudau Reviewed-by: James Qian Wang (Arm Technology China) --- drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c | 3 +-- drivers/gpu/drm/arm/malidp_mw.c | 4 ++-- drivers/gpu/drm/drm_atomic.c | 13 +++++++++---- drivers/gpu/drm/rcar-du/rcar_du_writeback.c | 4 ++-- drivers/gpu/drm/vc4/vc4_txp.c | 5 ++--- 5 files changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c index 617e1f7..d6103dd 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c @@ -43,9 +43,8 @@ struct komeda_data_flow_cfg dflow; int err; - if (!writeback_job || !writeback_job->fb) { + if (!writeback_job) return 0; - } if (!crtc_st->active) { DRM_DEBUG_ATOMIC("Cannot write the composition result out on a inactive CRTC.\n"); diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_mw.c index 2e81252..a59227b 100644 --- a/drivers/gpu/drm/arm/malidp_mw.c +++ b/drivers/gpu/drm/arm/malidp_mw.c @@ -130,7 +130,7 @@ static void malidp_mw_connector_destroy(struct drm_connector *connector) struct drm_framebuffer *fb; int i, n_planes; - if (!conn_state->writeback_job || !conn_state->writeback_job->fb) + if (!conn_state->writeback_job) return 0; fb = conn_state->writeback_job->fb; @@ -247,7 +247,7 @@ void malidp_mw_atomic_commit(struct drm_device *drm, mw_state = to_mw_state(conn_state); - if (conn_state->writeback_job && conn_state->writeback_job->fb) { + if (conn_state->writeback_job) { struct drm_framebuffer *fb = conn_state->writeback_job->fb; DRM_DEV_DEBUG_DRIVER(drm->dev, diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 419381a..14aeaf7 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -430,10 +430,15 @@ static int drm_atomic_connector_check(struct drm_connector *connector, return -EINVAL; } - if (writeback_job->out_fence && !writeback_job->fb) { - DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] requesting out-fence without framebuffer\n", - connector->base.id, connector->name); - return -EINVAL; + if (!writeback_job->fb) { + if (writeback_job->out_fence) { + DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] requesting out-fence without framebuffer\n", + connector->base.id, connector->name); + return -EINVAL; + } + + drm_writeback_cleanup_job(writeback_job); + state->writeback_job = NULL; } return 0; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_writeback.c b/drivers/gpu/drm/rcar-du/rcar_du_writeback.c index ae07290..04efa78d 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_writeback.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_writeback.c @@ -147,7 +147,7 @@ static int rcar_du_wb_enc_atomic_check(struct drm_encoder *encoder, struct drm_device *dev = encoder->dev; struct drm_framebuffer *fb; - if (!conn_state->writeback_job || !conn_state->writeback_job->fb) + if (!conn_state->writeback_job) return 0; fb = conn_state->writeback_job->fb; @@ -221,7 +221,7 @@ void rcar_du_writeback_setup(struct rcar_du_crtc *rcrtc, unsigned int i; state = rcrtc->writeback.base.state; - if (!state || !state->writeback_job || !state->writeback_job->fb) + if (!state || !state->writeback_job) return; fb = state->writeback_job->fb; diff --git a/drivers/gpu/drm/vc4/vc4_txp.c b/drivers/gpu/drm/vc4/vc4_txp.c index 96f91c1..e92fa12 100644 --- a/drivers/gpu/drm/vc4/vc4_txp.c +++ b/drivers/gpu/drm/vc4/vc4_txp.c @@ -229,7 +229,7 @@ static int vc4_txp_connector_atomic_check(struct drm_connector *conn, int i; conn_state = drm_atomic_get_new_connector_state(state, conn); - if (!conn_state->writeback_job || !conn_state->writeback_job->fb) + if (!conn_state->writeback_job) return 0; crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc); @@ -269,8 +269,7 @@ static void vc4_txp_connector_atomic_commit(struct drm_connector *conn, u32 ctrl; int i; - if (WARN_ON(!conn_state->writeback_job || - !conn_state->writeback_job->fb)) + if (WARN_ON(!conn_state->writeback_job)) return; mode = &conn_state->crtc->state->adjusted_mode; From patchwork Wed Jul 31 11:04:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lowry Li (Arm Technology China)" X-Patchwork-Id: 11067507 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D83F13AC for ; Wed, 31 Jul 2019 11:05:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 48269209CE for ; 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Wed, 31 Jul 2019 11:04:45 +0000 From: "Lowry Li (Arm Technology China)" To: Liviu Dudau , "james qian wang (Arm Technology China)" , "maarten.lankhorst@linux.intel.com" , "seanpaul@chromium.org" , "airlied@linux.ie" , "daniel@ffwll.ch" , Brian Starkey CC: "Julien Yin (Arm Technology China)" , "maxime.ripard@bootlin.com" , "eric@anholt.net" , "kieran.bingham+renesas@ideasonboard.com" , "sean@poorly.run" , "laurent.pinchart@ideasonboard.com" , "Jonathan Chai (Arm Technology China)" , Ayan Halder , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" , nd Subject: [PATCH v1 2/2] drm: Clear the fence pointer when writeback job signaled Thread-Topic: [PATCH v1 2/2] drm: Clear the fence pointer when writeback job signaled Thread-Index: AQHVR4/CyrPm3jrEukClo/Nxj8QL5w== Date: Wed, 31 Jul 2019 11:04:45 +0000 Message-ID: <1564571048-15029-3-git-send-email-lowry.li@arm.com> References: <1564571048-15029-1-git-send-email-lowry.li@arm.com> In-Reply-To: <1564571048-15029-1-git-send-email-lowry.li@arm.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [113.29.88.7] x-clientproxiedby: SG2PR03CA0127.apcprd03.prod.outlook.com (2603:1096:4:91::31) To VI1PR08MB5488.eurprd08.prod.outlook.com (2603:10a6:803:137::22) Authentication-Results-Original: spf=none (sender IP is ) smtp.mailfrom=Lowry.Li@arm.com; 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Check if fence left over in drm_writeback_cleanup_job(), release it. Signed-off-by: Lowry Li (Arm Technology China) Reviewed-by: Brian Starkey Reviewed-by: James Qian Wang (Arm Technology China) --- drivers/gpu/drm/drm_writeback.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/drm_writeback.c b/drivers/gpu/drm/drm_writeback.c index ff138b6..43d9e3b 100644 --- a/drivers/gpu/drm/drm_writeback.c +++ b/drivers/gpu/drm/drm_writeback.c @@ -324,6 +324,9 @@ void drm_writeback_cleanup_job(struct drm_writeback_job *job) if (job->fb) drm_framebuffer_put(job->fb); + if (job->out_fence) + dma_fence_put(job->out_fence); + kfree(job); } EXPORT_SYMBOL(drm_writeback_cleanup_job); @@ -366,25 +369,29 @@ static void cleanup_work(struct work_struct *work) { unsigned long flags; struct drm_writeback_job *job; + struct dma_fence *out_fence; spin_lock_irqsave(&wb_connector->job_lock, flags); job = list_first_entry_or_null(&wb_connector->job_queue, struct drm_writeback_job, list_entry); - if (job) { + if (job) list_del(&job->list_entry); - if (job->out_fence) { - if (status) - dma_fence_set_error(job->out_fence, status); - dma_fence_signal(job->out_fence); - dma_fence_put(job->out_fence); - } - } + spin_unlock_irqrestore(&wb_connector->job_lock, flags); if (WARN_ON(!job)) return; + out_fence = job->out_fence; + if (out_fence) { + if (status) + dma_fence_set_error(out_fence, status); + dma_fence_signal(out_fence); + dma_fence_put(out_fence); + job->out_fence = NULL; + } + INIT_WORK(&job->cleanup_work, cleanup_work); queue_work(system_long_wq, &job->cleanup_work); }