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drm: Nuke drm_atomic_legacy_backoff

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Finally all users are gone!

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-9-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2017-07-25 10:01:22 +02:00
parent 7d902c05b4
commit 16fece0153
2 changed files with 0 additions and 34 deletions
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32
drivers/gpu/drm/drm_atomic.c
View File

@ -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

2
include/drm/drm_atomic.h
View File

@ -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);