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eb2983c09f
Export headless sku bit (bit 13) from opregion->header->pcon as an interface to check if our device is headless configuration. This is mainly targeted for hybrid gfx systems. E.g. when display is not supposed to be connected discrete graphics card it's opregion can inform this is headless graphics card. v3: Dummy version is now static inline function v2: Check also opregion version Bspec: 53441 Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220610085429.52935-2-jouni.hogander@intel.com
139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
/*
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* Copyright © 2008-2017 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#ifndef _INTEL_OPREGION_H_
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#define _INTEL_OPREGION_H_
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#include <linux/workqueue.h>
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#include <linux/pci.h>
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struct drm_i915_private;
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struct intel_connector;
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struct intel_encoder;
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struct opregion_header;
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struct opregion_acpi;
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struct opregion_swsci;
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struct opregion_asle;
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struct opregion_asle_ext;
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struct intel_opregion {
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struct opregion_header *header;
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struct opregion_acpi *acpi;
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struct opregion_swsci *swsci;
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u32 swsci_gbda_sub_functions;
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u32 swsci_sbcb_sub_functions;
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struct opregion_asle *asle;
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struct opregion_asle_ext *asle_ext;
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void *rvda;
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void *vbt_firmware;
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const void *vbt;
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u32 vbt_size;
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u32 *lid_state;
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struct work_struct asle_work;
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struct notifier_block acpi_notifier;
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};
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#define OPREGION_SIZE (8 * 1024)
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#ifdef CONFIG_ACPI
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int intel_opregion_setup(struct drm_i915_private *dev_priv);
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void intel_opregion_register(struct drm_i915_private *dev_priv);
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void intel_opregion_unregister(struct drm_i915_private *dev_priv);
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void intel_opregion_resume(struct drm_i915_private *dev_priv);
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void intel_opregion_suspend(struct drm_i915_private *dev_priv,
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pci_power_t state);
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void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
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int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
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bool enable);
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int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
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pci_power_t state);
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int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
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struct edid *intel_opregion_get_edid(struct intel_connector *connector);
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bool intel_opregion_headless_sku(struct drm_i915_private *i915);
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#else /* CONFIG_ACPI*/
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static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
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{
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return 0;
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}
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static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
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{
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}
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static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
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{
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}
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static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
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{
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}
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static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
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pci_power_t state)
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{
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}
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static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
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{
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}
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static inline int
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intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
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{
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return 0;
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}
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static inline int
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intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
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{
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return 0;
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}
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static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
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{
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return -ENODEV;
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}
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static inline struct edid *
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intel_opregion_get_edid(struct intel_connector *connector)
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{
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return NULL;
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}
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static inline bool intel_opregion_headless_sku(struct drm_i915_private *i915)
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{
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return false;
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}
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#endif /* CONFIG_ACPI */
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#endif
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