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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/drm_ioctl.c | |
| parent | drm/bridge: lt9611: Fix an error handling path in lt9611_probe() (diff) | |
| download | wireguard-linux-2af104290da5e4858e8caefa068827d7392c6a09.tar.xz wireguard-linux-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/drm_ioctl.c')
| -rw-r--r-- | drivers/gpu/drm/drm_ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 8b8744dcf691..51fcf1298023 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -297,7 +297,7 @@ static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_ req->value = 64; break; case DRM_CAP_ADDFB2_MODIFIERS: - req->value = dev->mode_config.allow_fb_modifiers; + req->value = !dev->mode_config.fb_modifiers_not_supported; break; case DRM_CAP_CRTC_IN_VBLANK_EVENT: req->value = 1; |