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0088d39b6a
Let's adjust the vblank evasion to account for the case where a push has already been sent. In that case the vblank exit will start at vmin vblank start (as opposed to vmax vblank start when no push has been sent). This should minimize the effects of the tiny race between sampling the frame counter vs. intel_vrr_send_push() during the previous frame. This will also be required if we want to do mailbox style updates with vrr since then we'd definitely do multiple commits per frame. Currently mailbox updates are only used by the legacy cursor, but we don't do vrr push for those. Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211117183103.27418-2-ville.syrjala@linux.intel.com Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
33 lines
1.1 KiB
C
33 lines
1.1 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_VRR_H__
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#define __INTEL_VRR_H__
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#include <linux/types.h>
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struct drm_connector;
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struct drm_connector_state;
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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_dp;
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struct intel_encoder;
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bool intel_vrr_is_capable(struct drm_connector *connector);
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void intel_vrr_check_modeset(struct intel_atomic_state *state);
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void intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
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struct drm_connector_state *conn_state);
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void intel_vrr_enable(struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state);
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void intel_vrr_send_push(const struct intel_crtc_state *crtc_state);
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bool intel_vrr_is_push_sent(const struct intel_crtc_state *crtc_state);
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void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state);
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void intel_vrr_get_config(struct intel_crtc *crtc,
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struct intel_crtc_state *crtc_state);
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int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state);
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int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state);
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#endif /* __INTEL_VRR_H__ */
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