mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 08:55:05 +07:00
0ef1905ecf
Our current global state handling is pretty ad-hoc. Let's try to make it better by imitating the standard drm core private object approach. The reason why we don't want to directly use the private objects is locking; Each private object has its own lock so if we introduce any global private objects we get serialized by that single lock across all pipes. The global state apporoach instead uses a read/write lock type of approach where each individual crtc lock counts as a read lock, and grabbing all the crtc locks allows one write access. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200120174728.21095-15-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak <imre.deak@intel.com>
64 lines
2.2 KiB
C
64 lines
2.2 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_ATOMIC_H__
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#define __INTEL_ATOMIC_H__
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#include <linux/types.h>
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struct drm_atomic_state;
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struct drm_connector;
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struct drm_connector_state;
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struct drm_crtc;
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struct drm_crtc_state;
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struct drm_device;
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struct drm_i915_private;
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struct drm_property;
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struct intel_atomic_state;
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struct intel_connector;
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struct intel_crtc;
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struct intel_crtc_state;
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int intel_digital_connector_atomic_get_property(struct drm_connector *connector,
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const struct drm_connector_state *state,
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struct drm_property *property,
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u64 *val);
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int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
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struct drm_connector_state *state,
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struct drm_property *property,
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u64 val);
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int intel_digital_connector_atomic_check(struct drm_connector *conn,
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struct drm_atomic_state *state);
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struct drm_connector_state *
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intel_digital_connector_duplicate_state(struct drm_connector *connector);
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bool intel_connector_needs_modeset(struct intel_atomic_state *state,
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struct drm_connector *connector);
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struct intel_digital_connector_state *
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intel_atomic_get_digital_connector_state(struct intel_atomic_state *state,
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struct intel_connector *connector);
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struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
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void intel_crtc_destroy_state(struct drm_crtc *crtc,
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struct drm_crtc_state *state);
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void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state);
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void intel_crtc_copy_color_blobs(struct intel_crtc_state *crtc_state);
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struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
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void intel_atomic_state_free(struct drm_atomic_state *state);
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void intel_atomic_state_clear(struct drm_atomic_state *state);
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struct intel_crtc_state *
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intel_atomic_get_crtc_state(struct drm_atomic_state *state,
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struct intel_crtc *crtc);
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int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
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struct intel_crtc *intel_crtc,
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struct intel_crtc_state *crtc_state);
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int _intel_atomic_lock_global_state(struct intel_atomic_state *state);
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int _intel_atomic_serialize_global_state(struct intel_atomic_state *state);
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#endif /* __INTEL_ATOMIC_H__ */
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