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authorTomohito Esaki <etom@igel.co.jp>2022-01-28 15:08:34 +0900
committerDaniel Vetter <daniel.vetter@ffwll.ch>2022-01-31 21:45:23 +0100
commit2af104290da5e4858e8caefa068827d7392c6a09 (patch)
tree4760e7ee41888b74c664dc9bee58fd8b28a7b10f /drivers/gpu/drm/drm_ioctl.c
parent9987151a90567785beebcbd5c8ac58d05f254137 (diff)
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.c2
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;