07fd0df822
On glk+ the hardware gets confused if we disable FBC while it's recompressing and we perform a plane update during the same frame. The result is that top of the screen gets corrupted. We can avoid that by giving the hardware enough time to finish the FBC disable before we touch the plane registers. Ie. we need an extra vblank wait after FBC disable. v2: Don't do the vblank wait if we never activated FBC in hw Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191128150338.12490-1-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef __INTEL_FBC_H__
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#define __INTEL_FBC_H__
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#include <linux/types.h>
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#include "intel_frontbuffer.h"
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struct drm_i915_private;
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struct intel_atomic_state;
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struct intel_crtc;
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struct intel_crtc_state;
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struct intel_plane_state;
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void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
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struct intel_atomic_state *state);
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bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
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bool intel_fbc_pre_update(struct intel_crtc *crtc,
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const struct intel_crtc_state *crtc_state,
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const struct intel_plane_state *plane_state);
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void intel_fbc_post_update(struct intel_crtc *crtc);
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void intel_fbc_init(struct drm_i915_private *dev_priv);
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void intel_fbc_enable(struct intel_crtc *crtc,
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const struct intel_crtc_state *crtc_state,
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const struct intel_plane_state *plane_state);
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void intel_fbc_disable(struct intel_crtc *crtc);
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void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
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void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
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unsigned int frontbuffer_bits,
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enum fb_op_origin origin);
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void intel_fbc_flush(struct drm_i915_private *dev_priv,
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unsigned int frontbuffer_bits, enum fb_op_origin origin);
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void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
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void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv);
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int intel_fbc_reset_underrun(struct drm_i915_private *dev_priv);
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#endif /* __INTEL_FBC_H__ */
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