drm: Nuke drm_atomic_legacy_backoff
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
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@ -1587,38 +1587,6 @@ drm_atomic_add_affected_planes(struct drm_atomic_state *state,
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}
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EXPORT_SYMBOL(drm_atomic_add_affected_planes);
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/**
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* drm_atomic_legacy_backoff - locking backoff for legacy ioctls
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* @state: atomic state
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*
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* This function should be used by legacy entry points which don't understand
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* -EDEADLK semantics. For simplicity this one will grab all modeset locks after
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* the slowpath completed.
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*/
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void drm_atomic_legacy_backoff(struct drm_atomic_state *state)
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{
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struct drm_device *dev = state->dev;
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int ret;
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bool global = false;
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if (WARN_ON(dev->mode_config.acquire_ctx == state->acquire_ctx)) {
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global = true;
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dev->mode_config.acquire_ctx = NULL;
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}
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retry:
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drm_modeset_backoff(state->acquire_ctx);
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ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);
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if (ret)
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goto retry;
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if (global)
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dev->mode_config.acquire_ctx = state->acquire_ctx;
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}
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EXPORT_SYMBOL(drm_atomic_legacy_backoff);
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/**
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* drm_atomic_check_only - check whether a given config would work
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* @state: atomic configuration to check
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@ -545,8 +545,6 @@ int __must_check
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drm_atomic_add_affected_planes(struct drm_atomic_state *state,
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struct drm_crtc *crtc);
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void drm_atomic_legacy_backoff(struct drm_atomic_state *state);
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void
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drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);
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