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sys/dev/drm/core/include/drm/drm_atomic_helper.h
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/* | |||||
* Copyright (C) 2014 Red Hat | |||||
* Copyright (C) 2014 Intel Corp. | |||||
* | |||||
* 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, sublicense, | |||||
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL | |||||
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: | |||||
* Rob Clark <robdclark@gmail.com> | |||||
* Daniel Vetter <daniel.vetter@ffwll.ch> | |||||
*/ | |||||
#ifndef DRM_ATOMIC_HELPER_H_ | |||||
#define DRM_ATOMIC_HELPER_H_ | |||||
#include <drm/drm_crtc.h> | |||||
#include <drm/drm_modeset_helper_vtables.h> | |||||
#include <drm/drm_modeset_helper.h> | |||||
#include <drm/drm_atomic_state_helper.h> | |||||
#include <drm/drm_util.h> | |||||
struct drm_atomic_state; | |||||
struct drm_private_obj; | |||||
struct drm_private_state; | |||||
int drm_atomic_helper_check_modeset(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, | |||||
const struct drm_crtc_state *crtc_state, | |||||
int min_scale, | |||||
int max_scale, | |||||
bool can_position, | |||||
bool can_update_disabled); | |||||
int drm_atomic_helper_check_planes(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
int drm_atomic_helper_check(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
void drm_atomic_helper_commit_tail(struct drm_atomic_state *state); | |||||
void drm_atomic_helper_commit_tail_rpm(struct drm_atomic_state *state); | |||||
int drm_atomic_helper_commit(struct drm_device *dev, | |||||
struct drm_atomic_state *state, | |||||
bool nonblock); | |||||
int drm_atomic_helper_async_check(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
void drm_atomic_helper_async_commit(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
int drm_atomic_helper_wait_for_fences(struct drm_device *dev, | |||||
struct drm_atomic_state *state, | |||||
bool pre_swap); | |||||
void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, | |||||
struct drm_atomic_state *old_state); | |||||
void drm_atomic_helper_wait_for_flip_done(struct drm_device *dev, | |||||
struct drm_atomic_state *old_state); | |||||
void | |||||
drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, | |||||
struct drm_atomic_state *old_state); | |||||
void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, | |||||
struct drm_atomic_state *old_state); | |||||
int drm_atomic_helper_prepare_planes(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
#define DRM_PLANE_COMMIT_ACTIVE_ONLY BIT(0) | |||||
#define DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET BIT(1) | |||||
void drm_atomic_helper_commit_planes(struct drm_device *dev, | |||||
struct drm_atomic_state *state, | |||||
uint32_t flags); | |||||
void drm_atomic_helper_cleanup_planes(struct drm_device *dev, | |||||
struct drm_atomic_state *old_state); | |||||
void drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state); | |||||
void | |||||
drm_atomic_helper_disable_planes_on_crtc(struct drm_crtc_state *old_crtc_state, | |||||
bool atomic); | |||||
int __must_check drm_atomic_helper_swap_state(struct drm_atomic_state *state, | |||||
bool stall); | |||||
/* nonblocking commit helpers */ | |||||
int drm_atomic_helper_setup_commit(struct drm_atomic_state *state, | |||||
bool nonblock); | |||||
void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *state); | |||||
void drm_atomic_helper_fake_vblank(struct drm_atomic_state *state); | |||||
void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *state); | |||||
void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *state); | |||||
/* implementations for legacy interfaces */ | |||||
int drm_atomic_helper_update_plane(struct drm_plane *plane, | |||||
struct drm_crtc *crtc, | |||||
struct drm_framebuffer *fb, | |||||
int crtc_x, int crtc_y, | |||||
unsigned int crtc_w, unsigned int crtc_h, | |||||
uint32_t src_x, uint32_t src_y, | |||||
uint32_t src_w, uint32_t src_h, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
int drm_atomic_helper_disable_plane(struct drm_plane *plane, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
int drm_atomic_helper_set_config(struct drm_mode_set *set, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
int drm_atomic_helper_disable_all(struct drm_device *dev, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
void drm_atomic_helper_shutdown(struct drm_device *dev); | |||||
struct drm_atomic_state * | |||||
drm_atomic_helper_duplicate_state(struct drm_device *dev, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
struct drm_atomic_state *drm_atomic_helper_suspend(struct drm_device *dev); | |||||
int drm_atomic_helper_commit_duplicated_state(struct drm_atomic_state *state, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
int drm_atomic_helper_resume(struct drm_device *dev, | |||||
struct drm_atomic_state *state); | |||||
int drm_atomic_helper_page_flip(struct drm_crtc *crtc, | |||||
struct drm_framebuffer *fb, | |||||
struct drm_pending_vblank_event *event, | |||||
uint32_t flags, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
int drm_atomic_helper_page_flip_target( | |||||
struct drm_crtc *crtc, | |||||
struct drm_framebuffer *fb, | |||||
struct drm_pending_vblank_event *event, | |||||
uint32_t flags, | |||||
uint32_t target, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, | |||||
u16 *red, u16 *green, u16 *blue, | |||||
uint32_t size, | |||||
struct drm_modeset_acquire_ctx *ctx); | |||||
/** | |||||
* drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC | |||||
* @plane: the loop cursor | |||||
* @crtc: the crtc whose planes are iterated | |||||
* | |||||
* This iterates over the current state, useful (for example) when applying | |||||
* atomic state after it has been checked and swapped. To iterate over the | |||||
* planes which *will* be attached (more useful in code called from | |||||
* &drm_mode_config_funcs.atomic_check) see | |||||
* drm_atomic_crtc_state_for_each_plane(). | |||||
*/ | |||||
#define drm_atomic_crtc_for_each_plane(plane, crtc) \ | |||||
drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask) | |||||
/** | |||||
* drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state | |||||
* @plane: the loop cursor | |||||
* @crtc_state: the incoming crtc-state | |||||
* | |||||
* Similar to drm_crtc_for_each_plane(), but iterates the planes that will be | |||||
* attached if the specified state is applied. Useful during for example | |||||
* in code called from &drm_mode_config_funcs.atomic_check operations, to | |||||
* validate the incoming state. | |||||
*/ | |||||
#define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \ | |||||
drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) | |||||
/** | |||||
* drm_crtc_atomic_state_for_each_plane_state - iterate over attached planes in new state | |||||
* @plane: the loop cursor | |||||
* @plane_state: loop cursor for the plane's state, must be const | |||||
* @crtc_state: the incoming crtc-state | |||||
* | |||||
* Similar to drm_crtc_for_each_plane(), but iterates the planes that will be | |||||
* attached if the specified state is applied. Useful during for example | |||||
* in code called from &drm_mode_config_funcs.atomic_check operations, to | |||||
* validate the incoming state. | |||||
* | |||||
* Compared to just drm_atomic_crtc_state_for_each_plane() this also fills in a | |||||
* const plane_state. This is useful when a driver just wants to peek at other | |||||
* active planes on this crtc, but does not need to change it. | |||||
*/ | |||||
#define drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state) \ | |||||
drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) \ | |||||
for_each_if ((plane_state = \ | |||||
__drm_atomic_get_current_plane_state((crtc_state)->state, \ | |||||
plane))) | |||||
/** | |||||
* drm_atomic_plane_disabling - check whether a plane is being disabled | |||||
* @old_plane_state: old atomic plane state | |||||
* @new_plane_state: new atomic plane state | |||||
* | |||||
* Checks the atomic state of a plane to determine whether it's being disabled | |||||
* or not. This also WARNs if it detects an invalid state (both CRTC and FB | |||||
* need to either both be NULL or both be non-NULL). | |||||
* | |||||
* RETURNS: | |||||
* True if the plane is being disabled, false otherwise. | |||||
*/ | |||||
static inline bool | |||||
drm_atomic_plane_disabling(struct drm_plane_state *old_plane_state, | |||||
struct drm_plane_state *new_plane_state) | |||||
{ | |||||
/* | |||||
* When disabling a plane, CRTC and FB should always be NULL together. | |||||
* Anything else should be considered a bug in the atomic core, so we | |||||
* gently warn about it. | |||||
*/ | |||||
WARN_ON((new_plane_state->crtc == NULL && new_plane_state->fb != NULL) || | |||||
(new_plane_state->crtc != NULL && new_plane_state->fb == NULL)); | |||||
return old_plane_state->crtc && !new_plane_state->crtc; | |||||
} | |||||
#endif /* DRM_ATOMIC_HELPER_H_ */ |