cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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intel_opregion.h (3696B)

      1/*
      2 * Copyright © 2008-2017 Intel Corporation
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice (including the next
     12 * paragraph) shall be included in all copies or substantial portions of the
     13 * Software.
     14 *
     15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21 * IN THE SOFTWARE.
     22 *
     23 */
     24
     25#ifndef _INTEL_OPREGION_H_
     26#define _INTEL_OPREGION_H_
     27
     28#include <linux/workqueue.h>
     29#include <linux/pci.h>
     30
     31struct drm_i915_private;
     32struct intel_connector;
     33struct intel_encoder;
     34
     35struct opregion_header;
     36struct opregion_acpi;
     37struct opregion_swsci;
     38struct opregion_asle;
     39struct opregion_asle_ext;
     40
     41struct intel_opregion {
     42	struct opregion_header *header;
     43	struct opregion_acpi *acpi;
     44	struct opregion_swsci *swsci;
     45	u32 swsci_gbda_sub_functions;
     46	u32 swsci_sbcb_sub_functions;
     47	struct opregion_asle *asle;
     48	struct opregion_asle_ext *asle_ext;
     49	void *rvda;
     50	void *vbt_firmware;
     51	const void *vbt;
     52	u32 vbt_size;
     53	u32 *lid_state;
     54	struct work_struct asle_work;
     55	struct notifier_block acpi_notifier;
     56};
     57
     58#define OPREGION_SIZE            (8 * 1024)
     59
     60#ifdef CONFIG_ACPI
     61
     62int intel_opregion_setup(struct drm_i915_private *dev_priv);
     63
     64void intel_opregion_register(struct drm_i915_private *dev_priv);
     65void intel_opregion_unregister(struct drm_i915_private *dev_priv);
     66
     67void intel_opregion_resume(struct drm_i915_private *dev_priv);
     68void intel_opregion_suspend(struct drm_i915_private *dev_priv,
     69			    pci_power_t state);
     70
     71void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
     72int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
     73				  bool enable);
     74int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
     75				  pci_power_t state);
     76int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
     77struct edid *intel_opregion_get_edid(struct intel_connector *connector);
     78
     79#else /* CONFIG_ACPI*/
     80
     81static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
     82{
     83	return 0;
     84}
     85
     86static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
     87{
     88}
     89
     90static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
     91{
     92}
     93
     94static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
     95{
     96}
     97
     98static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
     99					  pci_power_t state)
    100{
    101}
    102
    103static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
    104{
    105}
    106
    107static inline int
    108intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
    109{
    110	return 0;
    111}
    112
    113static inline int
    114intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
    115{
    116	return 0;
    117}
    118
    119static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
    120{
    121	return -ENODEV;
    122}
    123
    124static inline struct edid *
    125intel_opregion_get_edid(struct intel_connector *connector)
    126{
    127	return NULL;
    128}
    129
    130#endif /* CONFIG_ACPI */
    131
    132#endif