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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e88230a374
The plane buffer address/stride/height was incorrectly updated in the
plane_atomic_update operation instead of the vsync irq.
This patch delays this operation in the vsync irq along with the
other plane delayed setup.
This issue was masked using legacy framebuffer and X11 modesetting, but
is clearly visible using gbm rendering when buffer is submitted late after
vblank, like using software decoding and OpenGL rendering in Kodi.
With this patch, tearing and other artifacts disappears completely.
Cc: Michal Lazo <michal.lazo@gmail.com>
Fixes: bbbe775ec5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1518689976-23292-1-git-send-email-narmstrong@baylibre.com
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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* Copyright (C) 2016 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MESON_DRV_H
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#define __MESON_DRV_H
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/of.h>
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#include <drm/drmP.h>
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struct meson_drm {
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struct device *dev;
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void __iomem *io_base;
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struct regmap *hhi;
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struct regmap *dmc;
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int vsync_irq;
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struct drm_device *drm;
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struct drm_crtc *crtc;
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struct drm_fbdev_cma *fbdev;
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struct drm_plane *primary_plane;
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/* Components Data */
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struct {
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bool osd1_enabled;
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bool osd1_interlace;
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bool osd1_commit;
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uint32_t osd1_ctrl_stat;
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uint32_t osd1_blk0_cfg[5];
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uint32_t osd1_addr;
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uint32_t osd1_stride;
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uint32_t osd1_height;
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} viu;
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struct {
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unsigned int current_mode;
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bool hdmi_repeat;
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bool venc_repeat;
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bool hdmi_use_enci;
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} venc;
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};
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static inline int meson_vpu_is_compatible(struct meson_drm *priv,
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const char *compat)
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{
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return of_device_is_compatible(priv->dev->of_node, compat);
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}
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#endif /* __MESON_DRV_H */
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