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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.4 212/459] drm/mediatek: handle events when enabling/disabling crtc
Date: Fri, 14 Feb 2020 10:57:42 -0500
Message-ID: <20200214160149.11681-212-sashal@kernel.org> (raw)
In-Reply-To: <20200214160149.11681-1-sashal@kernel.org>

From: Bibby Hsieh <bibby.hsieh@mediatek.com>

[ Upstream commit 411f5c1eacfebb1f6e40b653d29447cdfe7282aa ]

The driver currently handles vblank events only when updating planes on
an already enabled CRTC. The atomic update API however allows requesting
an event when enabling or disabling a CRTC. This currently leads to
event objects being leaked in the kernel and to events not being sent
out. Fix it.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 34a7317557912..0b3d284d19569 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -298,6 +298,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
 static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc)
 {
 	struct drm_device *drm = mtk_crtc->base.dev;
+	struct drm_crtc *crtc = &mtk_crtc->base;
 	int i;
 
 	DRM_DEBUG_DRIVER("%s\n", __func__);
@@ -319,6 +320,13 @@ static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc)
 	mtk_disp_mutex_unprepare(mtk_crtc->mutex);
 
 	pm_runtime_put(drm->dev);
+
+	if (crtc->state->event && !crtc->state->active) {
+		spin_lock_irq(&crtc->dev->event_lock);
+		drm_crtc_send_vblank_event(crtc, crtc->state->event);
+		crtc->state->event = NULL;
+		spin_unlock_irq(&crtc->dev->event_lock);
+	}
 }
 
 static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
-- 
2.20.1

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  parent reply index

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-14 15:54 [PATCH AUTOSEL 5.4 001/459] drm/amdgpu: remove set but not used variable 'mc_shared_chmap' from 'gfx_v6_0.c' and 'gfx_v7_0.c' Sasha Levin
2020-02-14 15:54 ` [PATCH AUTOSEL 5.4 002/459] drm/gma500: Fixup fbdev stolen size usage evaluation Sasha Levin
2020-02-14 15:54 ` [PATCH AUTOSEL 5.4 005/459] drm/qxl: Complete exception handling in qxl_device_init() Sasha Levin
2020-02-14 15:54 ` [PATCH AUTOSEL 5.4 023/459] drm/amd/display: Map ODM memory correctly when doing ODM combine Sasha Levin
2020-02-14 15:54 ` [PATCH AUTOSEL 5.4 031/459] drm/mipi_dbi: Fix off-by-one bugs in mipi_dbi_blank() Sasha Levin
2020-02-14 15:54 ` [PATCH AUTOSEL 5.4 032/459] drm/msm/adreno: fix zap vs no-zap handling Sasha Levin
2020-02-14 15:54 ` [PATCH AUTOSEL 5.4 033/459] pxa168fb: Fix the function used to release some memory in an error handling path Sasha Levin
2020-02-14 15:55 ` [PATCH AUTOSEL 5.4 061/459] drm/amdgpu/sriov: workaround on rev_id for Navi12 under sriov Sasha Levin
2020-02-14 15:55 ` [PATCH AUTOSEL 5.4 065/459] drm/nouveau/nouveau: fix incorrect sizeof on args.src an args.dst Sasha Levin
2020-02-14 15:55 ` [PATCH AUTOSEL 5.4 070/459] drm/amd/display: Clear state after exiting fixed active VRR state Sasha Levin
2020-02-14 15:55 ` [PATCH AUTOSEL 5.4 101/459] drm/amd/display: Retrain dongles when SINK_COUNT becomes non-zero Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 113/459] drm/amdkfd: Fix a bug in SDMA RLC queue counting under HWS mode Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 119/459] drm/amdgpu: remove 4 set but not used variable in amdgpu_atombios_get_connector_info_from_object_table Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 120/459] drm/amdgpu: remove set but not used variable 'dig_connector' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 121/459] drm/amdgpu: remove set but not used variable 'dig' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 122/459] drm/amdgpu: remove always false comparison in 'amdgpu_atombios_i2c_process_i2c_ch' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 123/459] drm/amdgpu: remove set but not used variable 'mc_shared_chmap' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 124/459] drm/amd/powerplay: remove set but not used variable 'vbios_version', 'data' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 125/459] drm/amd/powerplay: remove set but not used variable 'data' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 126/459] drm/amd/powerplay: remove set but not used variable 'threshold', 'state' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 127/459] drm/amdgpu: remove set but not used variable 'amdgpu_connector' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 128/459] drm/amdgpu: remove set but not used variable 'count' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 129/459] drm/amdgpu: remove set but not used variable 'invalid' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 130/459] drm/amd/powerplay: remove set but not used variable 'us_mvdd' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 131/459] drm/gma500: remove set but not used variable 'htotal' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 132/459] drm/gma500: remove set but not used variable 'error' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 133/459] drm/gma500: remove set but not used variable 'is_hdmi', 'is_crt' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 134/459] drm/gma500: remove set but not used variable 'channel_eq' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 135/459] drm/amdkfd: remove set but not used variable 'top_dev' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 136/459] drm/amd/display: remove set but not used variable 'old_plane_crtc' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 137/459] drm/amd/display: remove set but not used variable 'bp' in bios_parser2.c Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 138/459] drm/amd/display: remove set but not used variable 'bp' in bios_parser.c Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 139/459] drm/radeon: remove set but not used variable 'size', 'relocs_chunk' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 140/459] drm/radeon: remove set but not used variable 'backbias_response_time' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 141/459] drm/radeon: remove set but not used variable 'dig_connector' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 142/459] drm/radeon: remove set but not used variable 'radeon_connector' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 143/459] drm/radeon: remove set but not used variable 'blocks' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 144/459] drm/radeon: remove set but not used variable 'tv_pll_cntl1' Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 146/459] drm/amdgpu: Ensure ret is always initialized when using SOC15_WAIT_ON_RREG Sasha Levin
2020-02-14 15:56 ` [PATCH AUTOSEL 5.4 147/459] drm/panel: simple: Add Logic PD Type 28 display support Sasha Levin
2020-02-14 15:57 ` [PATCH AUTOSEL 5.4 182/459] gpu/drm: ingenic: Avoid null pointer deference in plane atomic update Sasha Levin
2020-02-14 15:57 ` [PATCH AUTOSEL 5.4 204/459] drm/amdgpu: fix KIQ ring test fail in TDR of SRIOV Sasha Levin
2020-02-14 15:57 ` Sasha Levin [this message]
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 234/459] drm/fbdev: Fallback to non tiled mode if all tiles not present Sasha Levin
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 239/459] fbdev: fix numbering of fbcon options Sasha Levin
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 255/459] drm/amdkfd: Fix permissions of hang_hws Sasha Levin
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 258/459] drm: remove the newline for CRC source name Sasha Levin
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 260/459] drm/gma500: remove set but not used variables 'hist_reg' Sasha Levin
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 270/459] drm/mediatek: Add gamma property according to hardware capability Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 309/459] drm/nouveau/secboot/gm20b: initialize pointer in gm20b_secboot_new() Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 310/459] drm/nouveau/gr/gk20a, gm200-: add terminators to method lists read from fw Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 311/459] drm/nouveau: Fix copy-paste error in nouveau_fence_wait_uevent_handler Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 312/459] drm/nouveau/drm/ttm: Remove set but not used variable 'mem' Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 313/459] drm/nouveau/fault/gv100-: fix memory leak on module unload Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 316/459] drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 337/459] drm/amd/display: fixup DML dependencies Sasha Levin
2020-02-14 16:00 ` [PATCH AUTOSEL 5.4 379/459] drm/nouveau/mmu: fix comptag memory leak Sasha Levin
2020-02-14 16:00 ` [PATCH AUTOSEL 5.4 380/459] drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector' Sasha Levin
2020-02-14 16:01 ` [PATCH AUTOSEL 5.4 422/459] drm/amd/display: do not allocate display_mode_lib unnecessarily Sasha Levin
2020-02-14 16:01 ` [PATCH AUTOSEL 5.4 424/459] drm/nouveau/disp/nv50-: prevent oops when no channel method map provided Sasha Levin
2020-02-14 16:01 ` [PATCH AUTOSEL 5.4 429/459] radeon: insert 10ms sleep in dce5_crtc_load_lut Sasha Levin
2020-02-14 16:01 ` [PATCH AUTOSEL 5.4 449/459] drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_latency Sasha Levin
2020-02-14 16:01 ` [PATCH AUTOSEL 5.4 450/459] drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_voltage Sasha Levin

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