1fd51d9d97
Let GVT-g VM read the CSB and CSB write pointer from virtual HWSP, not all the host support this feature, need to check the BIT(3) of caps in PVINFO. v3 : Remove unnecessary comments. v4 : Separate VM enable patch with GVT-g implementation patch due to code dependency. v5 : Use inline for GVT virtual HWSP caps check function. v6 : Comments refine. Signed-off-by: Weinan Li <weinan.z.li@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1508039725-1066-1-git-send-email-weinan.z.li@intel.com
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
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* Copyright(c) 2011-2015 Intel Corporation. All rights reserved.
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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 FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _I915_VGPU_H_
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#define _I915_VGPU_H_
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#include "i915_pvinfo.h"
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void i915_check_vgpu(struct drm_i915_private *dev_priv);
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bool intel_vgpu_has_full_48bit_ppgtt(struct drm_i915_private *dev_priv);
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static inline bool
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intel_vgpu_has_hwsp_emulation(struct drm_i915_private *dev_priv)
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{
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return dev_priv->vgpu.caps & VGT_CAPS_HWSP_EMULATION;
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}
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int intel_vgt_balloon(struct drm_i915_private *dev_priv);
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void intel_vgt_deballoon(struct drm_i915_private *dev_priv);
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#endif /* _I915_VGPU_H_ */
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