mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-09 06:14:34 +02:00
Maxime RipardandDave Airlie
5164f7e7ff
The KMS framework uses two slightly different definitions for the state concept. For a given object (plane, CRTC, encoder, etc., so drm_$OBJECT_state), the state is the entire state of that object. However, at the device level, drm_atomic_state refers to a state update for a limited number of objects. Thus, drm_atomic_state isn't the entire device state, but only the full state of some objects in that device. This has been an endless source of confusion and thus bugs. We can rename the drm_atomic_state structure to drm_atomic_commit to make it less confusing. This patch was created using: rg -l drm_atomic_state | \ xargs sed -i 's/drm_atomic_state/drm_atomic_commit/g; s/drm_atomic_commit_helper/drm_atomic_state_helper/g' mv drivers/gpu/drm/tests/drm_atomic_state_test.c drivers/gpu/drm/tests/drm_atomic_commit_test.c Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patch.msgid.link/20260427-drm-drm-atomic-update-v4-1-c0e713bfdf25@kernel.org
85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
|
|
/**************************************************************************
|
|
*
|
|
* Copyright (c) 2018 VMware, Inc., Palo Alto, CA., USA
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
* USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Deepak Rawat <drawat@vmware.com>
|
|
*
|
|
**************************************************************************/
|
|
|
|
#ifndef DRM_DAMAGE_HELPER_H_
|
|
#define DRM_DAMAGE_HELPER_H_
|
|
|
|
#include <drm/drm_atomic_helper.h>
|
|
|
|
/**
|
|
* drm_atomic_for_each_plane_damage - Iterator macro for plane damage.
|
|
* @iter: The iterator to advance.
|
|
* @rect: Return a rectangle in fb coordinate clipped to plane src.
|
|
*
|
|
* Note that if the first call to iterator macro return false then no need to do
|
|
* plane update. Iterator will return full plane src when damage is not passed
|
|
* by user-space.
|
|
*/
|
|
#define drm_atomic_for_each_plane_damage(iter, rect) \
|
|
while (drm_atomic_helper_damage_iter_next(iter, rect))
|
|
|
|
/**
|
|
* struct drm_atomic_helper_damage_iter - Closure structure for damage iterator.
|
|
*
|
|
* This structure tracks state needed to walk the list of plane damage clips.
|
|
*/
|
|
struct drm_atomic_helper_damage_iter {
|
|
/* private: Plane src in whole number. */
|
|
struct drm_rect plane_src;
|
|
/* private: Rectangles in plane damage blob. */
|
|
const struct drm_rect *clips;
|
|
/* private: Number of rectangles in plane damage blob. */
|
|
uint32_t num_clips;
|
|
/* private: Current clip iterator is advancing on. */
|
|
uint32_t curr_clip;
|
|
/* private: Whether need full plane update. */
|
|
bool full_update;
|
|
};
|
|
|
|
void drm_atomic_helper_check_plane_damage(struct drm_atomic_commit *state,
|
|
struct drm_plane_state *plane_state);
|
|
int drm_atomic_helper_dirtyfb(struct drm_framebuffer *fb,
|
|
struct drm_file *file_priv, unsigned int flags,
|
|
unsigned int color, struct drm_clip_rect *clips,
|
|
unsigned int num_clips);
|
|
void
|
|
drm_atomic_helper_damage_iter_init(struct drm_atomic_helper_damage_iter *iter,
|
|
const struct drm_plane_state *old_state,
|
|
const struct drm_plane_state *new_state);
|
|
bool
|
|
drm_atomic_helper_damage_iter_next(struct drm_atomic_helper_damage_iter *iter,
|
|
struct drm_rect *rect);
|
|
bool drm_atomic_helper_damage_merged(const struct drm_plane_state *old_state,
|
|
const struct drm_plane_state *state,
|
|
struct drm_rect *rect);
|
|
|
|
#endif
|