diff options
| author | Arun R Murthy <arun.r.murthy@intel.com> | 2025-04-07 11:13:45 +0530 |
|---|---|---|
| committer | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-05-09 15:29:40 +0530 |
| commit | 9cd5cc9da7ff650f1e9818dbfd54232c00ec47ed (patch) | |
| tree | 38a172d2801d6cc252de0d5c5654ef1c101c271e /drivers/gpu/drm/drm_plane.c | |
| parent | 91bdccf579817f9a899fd3df90361276951edf33 (diff) | |
drm/plane: Add new plane property IN_FORMATS_ASYNC
There exists a property IN_FORMATS which exposes the plane supported
modifiers/formats to the user. In some platforms when asynchronous flip
are used all of modifiers/formats mentioned in IN_FORMATS are not
supported. This patch adds a new plane property IN_FORMATS_ASYNC to
expose the async flip supported modifiers/formats so that user can use
this information ahead and do flip with unsupported
formats/modifiers. This will save flip failures.
Add a new function pointer similar to format_mod_supported specifically
for asynchronous flip.
v2: Remove async variable from drm_plane (Ville)
v3: Add new function pointer for async (Ville)
v5: Typo corrected in commit message & some correction in the kernel
documentation. (Chaitanya)
v7: Place IN_FORMATS_ASYNC next to IN_FORMATS (Ville)
v8: replace uint32_t with u32 and uint64_t with u64 (Chaitanya)
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Acked-by: Xaver Hugl <xaver.hugl@kde.org>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Naveen Kumar <naveen1.kumar@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20250407-asyn-v13-1-b93ef83076c5@intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_plane.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index a28b22fdd7a4..fe181c100217 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -141,6 +141,14 @@ * various bugs in this area with inconsistencies between the capability * flag and per-plane properties. * + * IN_FORMATS_ASYNC: + * Blob property which contains the set of buffer format and modifier + * pairs supported by this plane for asynchronous flips. The blob is a struct + * drm_format_modifier_blob. Userspace cannot change this property. This is an + * optional property and if not present then user should expect a failure in + * atomic ioctl when the modifier/format is not supported by that plane under + * asynchronous flip. + * * SIZE_HINTS: * Blob property which contains the set of recommended plane size * which can used for simple "cursor like" use cases (eg. no scaling). |