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Commit 16fece01 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm: Nuke drm_atomic_legacy_backoff 



Finally all users are gone!

Reviewed-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-9-daniel.vetter@ffwll.ch
parent 7d902c05

drivers/gpu/drm/drm_atomic.c

+0 −32
Original line number Diff line number Diff line
@@ -1587,38 +1587,6 @@ drm_atomic_add_affected_planes(struct drm_atomic_state *state, 
}

EXPORT_SYMBOL(drm_atomic_add_affected_planes);



/**

 * drm_atomic_legacy_backoff - locking backoff for legacy ioctls

 * @state: atomic state

 *

 * This function should be used by legacy entry points which don't understand

 * -EDEADLK semantics. For simplicity this one will grab all modeset locks after

 * the slowpath completed.

 */

void drm_atomic_legacy_backoff(struct drm_atomic_state *state)

{

	struct drm_device *dev = state->dev;

	int ret;

	bool global = false;



	if (WARN_ON(dev->mode_config.acquire_ctx == state->acquire_ctx)) {

		global = true;



		dev->mode_config.acquire_ctx = NULL;

	}



retry:

	drm_modeset_backoff(state->acquire_ctx);



	ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);

	if (ret)

		goto retry;



	if (global)

		dev->mode_config.acquire_ctx = state->acquire_ctx;

}

EXPORT_SYMBOL(drm_atomic_legacy_backoff);



/**

 * drm_atomic_check_only - check whether a given config would work

 * @state: atomic configuration to check

include/drm/drm_atomic.h

+0 −2
Original line number Diff line number Diff line
@@ -545,8 +545,6 @@ int __must_check 
drm_atomic_add_affected_planes(struct drm_atomic_state *state,

			       struct drm_crtc *crtc);



void drm_atomic_legacy_backoff(struct drm_atomic_state *state);



void

drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);