diff options
Diffstat (limited to 'include/drm/drm_atomic_helper.h')
| -rw-r--r-- | include/drm/drm_atomic_helper.h | 50 |
1 files changed, 44 insertions, 6 deletions
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 85df04c8e62f..53382fe93537 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -34,12 +34,23 @@ #include <drm/drm_atomic_state_helper.h> #include <drm/drm_util.h> +/* + * Drivers that don't allow primary plane scaling may pass this macro in place + * of the min/max scale parameters of the plane-state checker function. + * + * Due to src being in 16.16 fixed point and dest being in integer pixels, + * 1<<16 represents no scaling. + */ +#define DRM_PLANE_NO_SCALING (1<<16) + 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_wb_connector_state(struct drm_connector *connector, + 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, @@ -48,6 +59,7 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, bool can_update_disabled); int drm_atomic_helper_check_planes(struct drm_device *dev, struct drm_atomic_state *state); +int drm_atomic_helper_check_crtc_primary_plane(struct drm_crtc_state *crtc_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); @@ -84,6 +96,8 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, int drm_atomic_helper_prepare_planes(struct drm_device *dev, struct drm_atomic_state *state); +void drm_atomic_helper_unprepare_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) @@ -125,6 +139,8 @@ int drm_atomic_helper_set_config(struct drm_mode_set *set, int drm_atomic_helper_disable_all(struct drm_device *dev, struct drm_modeset_acquire_ctx *ctx); +int drm_atomic_helper_reset_crtc(struct drm_crtc *crtc, + 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, @@ -147,10 +163,6 @@ int drm_atomic_helper_page_flip_target( 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 @@ -167,7 +179,7 @@ int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *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 + * drm_atomic_crtc_state_for_each_plane - iterate over attached planes in new state * @plane: the loop cursor * @crtc_state: the incoming CRTC state * @@ -180,7 +192,7 @@ int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, 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 + * drm_atomic_crtc_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 @@ -201,6 +213,32 @@ int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, plane))) /** + * drm_atomic_plane_enabling - check whether a plane is being enabled + * @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 enabled + * 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 enabled, false otherwise. + */ +static inline bool drm_atomic_plane_enabling(struct drm_plane_state *old_plane_state, + struct drm_plane_state *new_plane_state) +{ + /* + * When enabling a plane, CRTC and FB should always be set together. + * Anything else should be considered a bug in the atomic core, so we + * gently warn about it. + */ + WARN_ON((!new_plane_state->crtc && new_plane_state->fb) || + (new_plane_state->crtc && !new_plane_state->fb)); + + return !old_plane_state->crtc && new_plane_state->crtc; +} + +/** * 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 |