56  * also provides convenience implementations for the atomic state handling
67  * interfaces on top of the atomic interface. See drm_atomic_helper_set_config(),
72  * The atomic helper uses the same function table structures as all other
156 	 * through the atomic ioctl.
229 		 * As an exception restoring duplicated atomic state
331 	 * atomic check or commit, this is racy. But that's OK: all we care
337 	 * we're trying to restore an atomic state during system resume since
569  * This does all the CRTC and connector related computations for an atomic
884 			DRM_DEBUG_ATOMIC("[PLANE:%d:%s] atomic driver check failed\n",
900 			DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic driver check failed\n",
1092  * @old_state: atomic state object with old state structures
1099  * Drivers can use this for building their own atomic commit if they don't have
1106  * existing driver to the atomic world.
1239  * @old_state: atomic state object with old state structures
1285  * @old_state: atomic state object with old state structures
1372  * @state: atomic state object with old state structures
1379  * just uses the atomic state to find the changed planes)
1382  * around depending upon whether an atomic commit is blocking or
1424  * @old_state: atomic state object with old state structures
1426  * Helper to, after atomic commit, wait for vblanks on all affected
1508  * @old_state: atomic state object with old state structures
1510  * Helper to, after atomic commit, wait for page flips on all affected
1547  * drm_atomic_helper_commit_tail - commit atomic update to hardware
1548  * @old_state: atomic state object with old state structures
1580  * drm_atomic_helper_commit_tail_rpm - commit atomic update to hardware
1849 	 * This scheme allows new atomic state updates to be prepared and
1877  * Nonblocking atomic commits should use struct &drm_crtc_commit to sequence
1894  * different atomic commits on different CRTCs in parallel. The simplest way to
1896  * that drivers are not required to split up atomic commits and run an
1903  * against all CRTCs therein. Therefore for atomic state updates which only flip
1905  * in its atomic check code: This would prevent committing of atomic updates to
2017  * This function prepares @state to be used by the atomic helper's support for
2149  * @old_state: atomic state object with old state structures
2156  * This is part of the atomic helper support for nonblocking commits, see
2238  * @old_state: atomic state object with old state structures
2249  * This is part of the atomic helper support for nonblocking commits, see
2277  * @old_state: atomic state object with old state structures
2287  * This is part of the atomic helper support for nonblocking commits, see
2326  * @old_state: atomic state object with old state structures
2328  * This signals completion of the atomic update @old_state, including any
2332  * This is part of the atomic helper support for nonblocking commits, see
2365  * @state: atomic state object with new state structures
2432  * @old_state: atomic state object with old state structures
2435  * This function commits the new plane state using the plane and atomic helper
2436  * functions for planes and CRTCs. It assumes that the atomic state has already
2558  * @old_crtc_state: atomic state object with the old CRTC state
2560  * This function commits the new plane state using the plane and atomic helper
2561  * functions for planes on the specific CRTC. It assumes that the atomic state
2621  * @old_crtc_state: atomic state object with the old CRTC state
2622  * @atomic: if set, synchronize with CRTC's atomic_begin/flush hooks
2628  * If the atomic-parameter is set the function calls the CRTC's
2637 					 bool atomic)
2644 	if (atomic && crtc_funcs && crtc_funcs->atomic_begin)
2659 	if (atomic && crtc_funcs && crtc_funcs->atomic_flush)
2667  * @old_state: atomic state object with old state structures
2673  * This function must also be called on the new state when the atomic update
2705  * drm_atomic_helper_swap_state - store atomic state into current sw state
2706  * @state: atomic state
2709  * This function stores the atomic state into the current state pointers in all
2718  * 1. Call drm_atomic_helper_prepare_planes() with the staged atomic state.
2731  * the current atomic helpers this is almost always the case, since the helpers
2851  * drm_atomic_helper_update_plane - Helper for primary plane update using atomic
2865  * Provides a default plane update handler using the atomic driver interface.
2918  * drm_atomic_helper_disable_plane - Helper for primary plane disable using * atomic
2922  * Provides a default plane disable handler using the atomic driver interface.
2964  * Provides a default CRTC set_config handler using the atomic driver interface.
3096  * and it is the atomic version of drm_crtc_force_disable_all().
3114  * drm_atomic_helper_duplicate_state - duplicate an atomic state object
3118  * Makes a copy of the current atomic state by looping over all objects and
3123  * Note that this treats atomic state as persistent between save and restore.
3131  * A pointer to the copy of the atomic state object on success or an
3205  * Duplicates the current atomic state, disables all active outputs and then
3206  * returns a pointer to the original atomic state to the caller. Drivers can
3211  * Note that it is potentially unsafe to use this. The atomic state object
3218  * encoded error code on failure. Drivers should store the returned atomic
3259  * @state: duplicated atomic state to commit
3305  * @state: atomic state to resume to
3308  * grabs all modeset locks and commits the atomic state object. This can be
3310  * implement suspend/resume for drivers that support atomic mode-setting.
3384  * using the atomic driver interface.
3483  * how the atomic color management and gamma tables work.

Indexes created Mon Nov 10 17:20:41 GMT 2025