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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-04-01 12:37:14 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-04-07 12:02:07 +0300 |
| commit | 177dfbdb7e67db24d86dbd41cde20813d6e820cc (patch) | |
| tree | 84aa63bc0130359a49655bceee78253c8897dbe5 /drivers/gpu/drm/sysfb/drm_sysfb_helper.h | |
| parent | ea86aba47c3a724ea18a26ad498c1835f087dc63 (diff) | |
| download | linux-177dfbdb7e67db24d86dbd41cde20813d6e820cc.tar.xz | |
drm/sysfb: Merge primary-plane functions
Merge the primary plane code of ofdrm and simpledrm. Replace the
plane implementation in each driver with the shared helpers. Set
up driver callbacks and format modifiers with initializer macros.
The plane code in ofdrm and simpledrm is very similar. Ofdrm has a
more sophisticated implementation of atomic_disable, which clears
individual scanlines. The code in simpledrm clears the whole buffer
at once. Take the ofdrm version.
Simpledrm supports get_scanout_buffer. Import it into the shared
helpers, which makes it available in ofdrm.
The supported formats are all native formats plus an optional enulated
XRGB8888 if that's not already a native format. Provide an initializer
macro that computes the size of the formats array.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250401094056.32904-12-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/sysfb/drm_sysfb_helper.h')
| -rw-r--r-- | drivers/gpu/drm/sysfb/drm_sysfb_helper.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sysfb/drm_sysfb_helper.h b/drivers/gpu/drm/sysfb/drm_sysfb_helper.h index c8e5ac6b9b63..45e396bf74b7 100644 --- a/drivers/gpu/drm/sysfb/drm_sysfb_helper.h +++ b/drivers/gpu/drm/sysfb/drm_sysfb_helper.h @@ -40,6 +40,38 @@ static inline struct drm_sysfb_device *to_drm_sysfb_device(struct drm_device *de } /* + * Plane + */ + +int drm_sysfb_plane_helper_atomic_check(struct drm_plane *plane, + struct drm_atomic_state *new_state); +void drm_sysfb_plane_helper_atomic_update(struct drm_plane *plane, + struct drm_atomic_state *state); +void drm_sysfb_plane_helper_atomic_disable(struct drm_plane *plane, + struct drm_atomic_state *state); +int drm_sysfb_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb); + +#define DRM_SYSFB_PLANE_NFORMATS(_num_native) \ + ((_num_native) + 1) + +#define DRM_SYSFB_PLANE_FORMAT_MODIFIERS \ + DRM_FORMAT_MOD_LINEAR, \ + DRM_FORMAT_MOD_INVALID + +#define DRM_SYSFB_PLANE_HELPER_FUNCS \ + DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, \ + .atomic_check = drm_sysfb_plane_helper_atomic_check, \ + .atomic_update = drm_sysfb_plane_helper_atomic_update, \ + .atomic_disable = drm_sysfb_plane_helper_atomic_disable, \ + .get_scanout_buffer = drm_sysfb_plane_helper_get_scanout_buffer + +#define DRM_SYSFB_PLANE_FUNCS \ + .update_plane = drm_atomic_helper_update_plane, \ + .disable_plane = drm_atomic_helper_disable_plane, \ + DRM_GEM_SHADOW_PLANE_FUNCS + +/* * CRTC */ |