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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8bfa02c885
if a context is a restore inhibit context, gfx hw only load the first page for ring context, so we only need to copy from guest the 1 page too. v3: use "return" instead of "goto" for inhibit case. (zhenyu wang) v2: move judgement of restore inhibit to a macro in mmio_context.h Signed-off-by: Zhao Yan <yan.y.zhao@intel.com> Acked-by: Hang Yuan <hang.yuan@linux.intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/*
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* Copyright(c) 2011-2016 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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* Authors:
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* Eddie Dong <eddie.dong@intel.com>
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* Kevin Tian <kevin.tian@intel.com>
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*
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* Contributors:
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* Zhi Wang <zhi.a.wang@intel.com>
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* Changbin Du <changbin.du@intel.com>
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* Zhenyu Wang <zhenyuw@linux.intel.com>
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* Tina Zhang <tina.zhang@intel.com>
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* Bing Niu <bing.niu@intel.com>
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*
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*/
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#ifndef __GVT_RENDER_H__
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#define __GVT_RENDER_H__
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struct engine_mmio {
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int ring_id;
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i915_reg_t reg;
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u32 mask;
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bool in_context;
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u32 value;
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};
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void intel_gvt_switch_mmio(struct intel_vgpu *pre,
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struct intel_vgpu *next, int ring_id);
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void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt);
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bool is_inhibit_context(struct intel_context *ce);
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int intel_vgpu_restore_inhibit_context(struct intel_vgpu *vgpu,
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struct i915_request *req);
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#define IS_RESTORE_INHIBIT(a) \
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(_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT) == \
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((a) & _MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT)))
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#endif
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