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 /include/drm | |
| parent | drm/cirrus: Use non-hybrid PCI devres API (diff) | |
| download | wireguard-linux-9cd5cc9da7ff650f1e9818dbfd54232c00ec47ed.tar.xz wireguard-linux-9cd5cc9da7ff650f1e9818dbfd54232c00ec47ed.zip | |
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 'include/drm')
| -rw-r--r-- | include/drm/drm_mode_config.h | 6 | ||||
| -rw-r--r-- | include/drm/drm_plane.h | 17 |
2 files changed, 23 insertions, 0 deletions
diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index 4b8f0370b79b..9e524b51a001 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -937,6 +937,12 @@ struct drm_mode_config { struct drm_property *modifiers_property; /** + * @async_modifiers_property: Plane property to list support modifier/format + * combination for asynchronous flips. + */ + struct drm_property *async_modifiers_property; + + /** * @size_hints_property: Plane SIZE_HINTS property. */ struct drm_property *size_hints_property; diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index dd718c62ac31..01479dd94e76 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -549,6 +549,23 @@ struct drm_plane_funcs { */ bool (*format_mod_supported)(struct drm_plane *plane, uint32_t format, uint64_t modifier); + /** + * @format_mod_supported_async: + * + * This optional hook is used for the DRM to determine if for + * asynchronous flip the given format/modifier combination is valid for + * the plane. This allows the DRM to generate the correct format + * bitmask (which formats apply to which modifier), and to validate + * modifiers at atomic_check time. + * + * Returns: + * + * True if the given modifier is valid for that format on the plane. + * False otherwise. + */ + bool (*format_mod_supported_async)(struct drm_plane *plane, + u32 format, u64 modifier); + }; /** |