52b2416ceb
This adds a new vGPU cap info bit VGT_CAPS_HUGE_GTT, which is to detect whether the host supports shadowing of huge gtt pages. If host does support it, remove the page sizes restriction for vGPU. Signed-off-by: Changbin Du <changbin.du@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1525770425-5373-1-git-send-email-changbin.du@intel.com
49 lines
1.8 KiB
C
49 lines
1.8 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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static inline bool
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intel_vgpu_has_huge_gtt(struct drm_i915_private *dev_priv)
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{
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return dev_priv->vgpu.caps & VGT_CAPS_HUGE_GTT;
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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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