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| author | Tomohito Esaki <etom@igel.co.jp> | 2022-01-28 15:08:34 +0900 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2022-01-31 21:45:23 +0100 |
| commit | 2af104290da5e4858e8caefa068827d7392c6a09 (patch) | |
| tree | 4760e7ee41888b74c664dc9bee58fd8b28a7b10f /drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | |
| parent | 9987151a90567785beebcbd5c8ac58d05f254137 (diff) | |
| download | lwn-2af104290da5e4858e8caefa068827d7392c6a09.tar.gz lwn-2af104290da5e4858e8caefa068827d7392c6a09.zip | |
drm: introduce fb_modifiers_not_supported flag in mode_config
If only linear modifier is advertised, since there are many drivers that
only linear supported, the DRM core should handle this rather than
open-coding in every driver. However, there are legacy drivers such as
radeon that do not support modifiers but infer the actual layout of the
underlying buffer. Therefore, a new flag fb_modifiers_not_supported is
introduced for these legacy drivers, and allow_fb_modifiers is replaced
with this new flag.
v3:
- change the order as follows:
1. add fb_modifiers_not_supported flag
2. add default modifiers
3. remove allow_fb_modifiers flag
- add a conditional disable in amdgpu_dm_plane_init()
v4:
- modify kernel docs
v5:
- modify kernel docs
Signed-off-by: Tomohito Esaki <etom@igel.co.jp>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220128060836.11216-2-etom@igel.co.jp
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_display.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index 9a273420a67a..4c847f48f276 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -956,7 +956,7 @@ static int amdgpu_display_verify_sizes(struct amdgpu_framebuffer *rfb) int ret; unsigned int i, block_width, block_height, block_size_log2; - if (!rfb->base.dev->mode_config.allow_fb_modifiers) + if (rfb->base.dev->mode_config.fb_modifiers_not_supported) return 0; for (i = 0; i < format_info->num_planes; ++i) { @@ -1143,7 +1143,7 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, if (ret) return ret; - if (!dev->mode_config.allow_fb_modifiers) { + if (dev->mode_config.fb_modifiers_not_supported) { drm_WARN_ONCE(dev, adev->family >= AMDGPU_FAMILY_AI, "GFX9+ requires FB check based on format modifier\n"); ret = check_tiling_flags_gfx6(rfb); @@ -1151,7 +1151,7 @@ int amdgpu_display_framebuffer_init(struct drm_device *dev, return ret; } - if (dev->mode_config.allow_fb_modifiers && + if (!dev->mode_config.fb_modifiers_not_supported && !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) { ret = convert_tiling_flags_to_modifier(rfb); if (ret) { |