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33e059a2e4
Commit60c6a14b48("drm/i915/display: Force the state compute phase once to enable PSR") was forcing the state compute too earlier causing errors because not everything was initialized, so here moving to the end of i915_driver_modeset_probe() when the display is all initialized. Also fixing the place where it disarm the force probe as during the atomic check phase errors could happen like the ones due locking and it would cause PSR to never be enabled if that happens. Leaving the disarm to the atomic commit phase, intel_psr_enable() or intel_psr_update() will be called even if the current state do not allow PSR to be enabled. v2: Check if intel_dp is null in intel_psr_force_mode_changed_set() v3: Check intel_dp before get dev_priv v4: - renamed intel_psr_force_mode_changed_set() to intel_psr_set_force_mode_changed() - removed the set parameter from intel_psr_set_force_mode_changed() - not calling intel_psr_set_force_mode_changed() from intel_psr_enable/update(), directly setting it after the same checks that intel_psr_set_force_mode_changed() does - moved intel_psr_set_force_mode_changed() arm call to i915_driver_modeset_probe() as it is a better for a PSR call, all the functions calls happening between the old and the new function call will cause issue [backported to v5.6-rc3] Fixes:60c6a14b48("drm/i915/display: Force the state compute phase once to enable PSR") Closes: https://gitlab.freedesktop.org/drm/intel/issues/1151 Tested-by: Ross Zwisler <zwisler@google.com> Reported-by: Ross Zwisler <zwisler@google.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Anshuman Gupta <anshuman.gupta@intel.com> Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200221212635.11614-1-jose.souza@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20200227205540.126135-1-jose.souza@intel.com (cherry picked from commitdf1a5bfc16) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
46 lines
1.7 KiB
C
46 lines
1.7 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_PSR_H__
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#define __INTEL_PSR_H__
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#include "intel_frontbuffer.h"
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struct drm_connector;
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struct drm_connector_state;
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struct drm_i915_private;
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struct intel_crtc_state;
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struct intel_dp;
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#define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
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void intel_psr_init_dpcd(struct intel_dp *intel_dp);
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void intel_psr_enable(struct intel_dp *intel_dp,
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const struct intel_crtc_state *crtc_state);
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void intel_psr_disable(struct intel_dp *intel_dp,
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const struct intel_crtc_state *old_crtc_state);
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void intel_psr_update(struct intel_dp *intel_dp,
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const struct intel_crtc_state *crtc_state);
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int intel_psr_debug_set(struct drm_i915_private *dev_priv, u64 value);
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void intel_psr_invalidate(struct drm_i915_private *dev_priv,
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unsigned frontbuffer_bits,
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enum fb_op_origin origin);
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void intel_psr_flush(struct drm_i915_private *dev_priv,
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unsigned frontbuffer_bits,
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enum fb_op_origin origin);
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void intel_psr_init(struct drm_i915_private *dev_priv);
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void intel_psr_compute_config(struct intel_dp *intel_dp,
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struct intel_crtc_state *crtc_state);
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void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir);
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void intel_psr_short_pulse(struct intel_dp *intel_dp);
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int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state,
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u32 *out_value);
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bool intel_psr_enabled(struct intel_dp *intel_dp);
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void intel_psr_atomic_check(struct drm_connector *connector,
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struct drm_connector_state *old_state,
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struct drm_connector_state *new_state);
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void intel_psr_set_force_mode_changed(struct intel_dp *intel_dp);
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#endif /* __INTEL_PSR_H__ */
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