treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / gpu / drm / i915 / display / intel_fbc.h
blobc8a5e50986872a6092f464faa0aec1c55ae2d808
1 /* SPDX-License-Identifier: MIT */
2 /*
3 * Copyright © 2019 Intel Corporation
4 */
6 #ifndef __INTEL_FBC_H__
7 #define __INTEL_FBC_H__
9 #include <linux/types.h>
11 #include "intel_frontbuffer.h"
13 struct drm_i915_private;
14 struct intel_atomic_state;
15 struct intel_crtc;
16 struct intel_crtc_state;
17 struct intel_plane_state;
19 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
20 struct intel_atomic_state *state);
21 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
22 bool intel_fbc_pre_update(struct intel_crtc *crtc,
23 const struct intel_crtc_state *crtc_state,
24 const struct intel_plane_state *plane_state);
25 void intel_fbc_post_update(struct intel_crtc *crtc);
26 void intel_fbc_init(struct drm_i915_private *dev_priv);
27 void intel_fbc_enable(struct intel_crtc *crtc,
28 const struct intel_crtc_state *crtc_state,
29 const struct intel_plane_state *plane_state);
30 void intel_fbc_disable(struct intel_crtc *crtc);
31 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
32 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
33 unsigned int frontbuffer_bits,
34 enum fb_op_origin origin);
35 void intel_fbc_flush(struct drm_i915_private *dev_priv,
36 unsigned int frontbuffer_bits, enum fb_op_origin origin);
37 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
38 void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv);
39 int intel_fbc_reset_underrun(struct drm_i915_private *dev_priv);
41 #endif /* __INTEL_FBC_H__ */