mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 15:15:02 +07:00
818f5cb3e8
We are not allowed to rpm_get() inside the runtime-suspend callback, so
split the intel_uc_suspend() into the core that assumes the caller holds
the wakeref (intel_uc_runtime_suspend), and one that acquires the wakeref
as necessary (intel_uc_suspend).
Reported-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Fixes: 79ffac8599 ("drm/i915: Invert the GEM wakeref hierarchy")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190502203009.15727-1-chris@chris-wilson.co.uk
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/*
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* Copyright © 2014 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_UC_H_
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#define _INTEL_UC_H_
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#include "intel_guc.h"
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#include "intel_huc.h"
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#include "i915_params.h"
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void intel_uc_init_early(struct drm_i915_private *dev_priv);
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void intel_uc_cleanup_early(struct drm_i915_private *dev_priv);
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void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
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int intel_uc_init_misc(struct drm_i915_private *dev_priv);
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void intel_uc_fini_misc(struct drm_i915_private *dev_priv);
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void intel_uc_sanitize(struct drm_i915_private *dev_priv);
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int intel_uc_init_hw(struct drm_i915_private *dev_priv);
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void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
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int intel_uc_init(struct drm_i915_private *dev_priv);
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void intel_uc_fini(struct drm_i915_private *dev_priv);
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void intel_uc_reset_prepare(struct drm_i915_private *i915);
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void intel_uc_suspend(struct drm_i915_private *i915);
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void intel_uc_runtime_suspend(struct drm_i915_private *i915);
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int intel_uc_resume(struct drm_i915_private *dev_priv);
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static inline bool intel_uc_is_using_guc(struct drm_i915_private *i915)
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{
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GEM_BUG_ON(i915_modparams.enable_guc < 0);
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return i915_modparams.enable_guc > 0;
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}
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static inline bool intel_uc_is_using_guc_submission(struct drm_i915_private *i915)
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{
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GEM_BUG_ON(i915_modparams.enable_guc < 0);
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return i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION;
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}
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static inline bool intel_uc_is_using_huc(struct drm_i915_private *i915)
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{
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GEM_BUG_ON(i915_modparams.enable_guc < 0);
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return i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC;
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}
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#endif
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