kernel/linux.git/drivers/gpu/drm/tiny/simpledrm.c, branch v6.1.168

drm/simpledrm: Synchronize access to GEM BOs

2022-09-27T08:27:00+00:00

Synchronize CPU access to GEM BOs with other drivers when updating the screen buffer. Imported buffers might otherwise contain stale data. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-6-tzimmermann@suse.de

drm/simpledrm: Iterate over damage clips

2022-09-27T08:26:57+00:00

Iterate over all damage clips and updated them one by one. Replaces the merging of damage areas, which can result in significant overhead if damage areas are not close to each other. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-5-tzimmermann@suse.de

drm/simpledrm: Remove !fb check from atomic_update

2022-09-27T08:26:37+00:00

The primary plane implements atomic_disable, so atomic_update will not be called without a framebuffer set. Remove the test for !fb. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-4-tzimmermann@suse.de

drm/simpledrm: Use drm_atomic_get_new_plane_state()

2022-09-27T08:25:22+00:00

Lookup the plane's state in atomic_update with the helper drm_atomic_get_new_plane_state(). Also rename the helpers' state arguments. No functional changes. Suggested-by: Ville Syrjälä Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Reviewed-by: Michael J. Ruhl Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-3-tzimmermann@suse.de

drm/simpledrm: Compute linestride with drm_format_info_min_pitch()

2022-09-27T08:24:47+00:00

If not given, compute the stride with drm_format_info_min_pitch(). It's the standard helper for this purpose. Suggested-by: Daniel Vetter Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Fixes: fd9e3169e42b ("drm/simpledrm: Compute framebuffer stride if not set") Cc: Javier Martinez Canillas Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-2-tzimmermann@suse.de

drm/plane-helper: Add a drm_plane_helper_atomic_check() helper

2022-09-16T21:33:52+00:00

Provides a default plane state check handler for primary planes that are a fullscreen scanout buffer and whose state scale and position can't change. There are some drivers that duplicate this logic in their helpers, such as simpledrm and ssd130x. Factor out this common code into a plane helper and make drivers use it. Suggested-by: Thomas Zimmermann Signed-off-by: Javier Martinez Canillas Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20220913162307.121503-1-javierm@redhat.com

drm/format-helper: Add drm_fb_build_fourcc_list() helper

2022-09-12T07:15:49+00:00

Add drm_fb_build_fourcc_list() function that builds a list of supported formats from native and emulated ones. Helpful for all drivers that do format conversion as part of their plane updates. Update current caller. v3: * improve warnings on ignored formats (Sam) v2: * use u32 instead of uint32_t (Sam) * print a warning if output array is too small (Sam) * comment fixes (Sam) Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-5-tzimmermann@suse.de

drm/modes: Add initializer macro DRM_MODE_INIT()

2022-09-12T07:14:59+00:00

The macro DRM_MODE_INIT() initializes an instance of struct drm_display_mode with typical parameters. Convert simpledrm and also update the macro DRM_SIMPLE_MODE(). v3: * fix DRM_MODE_INIT() docs (kernel test robot) Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-4-tzimmermann@suse.de

drm/probe-helper: Add drm_crtc_helper_mode_valid_fixed()

2022-09-12T07:14:26+00:00

Add drm_crtc_helper_mode_valid_fixed(), which validates a given mode against a display hardware's mode. Convert simpledrm and use it in a few other drivers with static modes. v4: * remove empty line after opening brace v2: * rename 'static' and 'hw' to 'fixed' everywhere Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-3-tzimmermann@suse.de

drm/probe-helper: Add drm_connector_helper_get_modes_fixed()

2022-09-12T07:13:25+00:00

Add drm_connector_helper_get_modes_fixed(), which duplicates a single display mode for a connector. Convert drivers. v2: * rename 'static' and 'hw' to 'fixed' everywhere * fix typo 'there' to 'their' (Sam) Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-2-tzimmermann@suse.de