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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9ec1e66b80
There are currently 4 methods in intel_gvt_io_emulation_ops to emulate CFG/MMIO reading/writing for intel vGPU. A possibly better scope is: add 3 more methods for vgpu create/destroy/reset respectively, and rename the ops to 'intel_gvt_ops', then pass it to the MPT module (say the future kvmgt) to use: they are all methods for external usage. Signed-off-by: Jike Song <jike.song@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
107 lines
3.7 KiB
C
107 lines
3.7 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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* Ke Yu
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* Kevin Tian <kevin.tian@intel.com>
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* Dexuan Cui
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*
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* Contributors:
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* Tina Zhang <tina.zhang@intel.com>
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* Min He <min.he@intel.com>
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* Niu Bing <bing.niu@intel.com>
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* Zhi Wang <zhi.a.wang@intel.com>
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*
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*/
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#ifndef _GVT_MMIO_H_
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#define _GVT_MMIO_H_
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struct intel_gvt;
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struct intel_vgpu;
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#define D_SNB (1 << 0)
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#define D_IVB (1 << 1)
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#define D_HSW (1 << 2)
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#define D_BDW (1 << 3)
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#define D_SKL (1 << 4)
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#define D_GEN9PLUS (D_SKL)
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#define D_GEN8PLUS (D_BDW | D_SKL)
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#define D_GEN75PLUS (D_HSW | D_BDW | D_SKL)
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#define D_GEN7PLUS (D_IVB | D_HSW | D_BDW | D_SKL)
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#define D_SKL_PLUS (D_SKL)
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#define D_BDW_PLUS (D_BDW | D_SKL)
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#define D_HSW_PLUS (D_HSW | D_BDW | D_SKL)
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#define D_IVB_PLUS (D_IVB | D_HSW | D_BDW | D_SKL)
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#define D_PRE_BDW (D_SNB | D_IVB | D_HSW)
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#define D_PRE_SKL (D_SNB | D_IVB | D_HSW | D_BDW)
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#define D_ALL (D_SNB | D_IVB | D_HSW | D_BDW | D_SKL)
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struct intel_gvt_mmio_info {
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u32 offset;
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u32 size;
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u32 length;
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u32 addr_mask;
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u64 ro_mask;
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u32 device;
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int (*read)(struct intel_vgpu *, unsigned int, void *, unsigned int);
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int (*write)(struct intel_vgpu *, unsigned int, void *, unsigned int);
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u32 addr_range;
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struct hlist_node node;
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};
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unsigned long intel_gvt_get_device_type(struct intel_gvt *gvt);
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bool intel_gvt_match_device(struct intel_gvt *gvt, unsigned long device);
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int intel_gvt_setup_mmio_info(struct intel_gvt *gvt);
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void intel_gvt_clean_mmio_info(struct intel_gvt *gvt);
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struct intel_gvt_mmio_info *intel_gvt_find_mmio_info(struct intel_gvt *gvt,
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unsigned int offset);
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#define INTEL_GVT_MMIO_OFFSET(reg) ({ \
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typeof(reg) __reg = reg; \
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u32 *offset = (u32 *)&__reg; \
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*offset; \
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})
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int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa);
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int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, u64 pa,
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void *p_data, unsigned int bytes);
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int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, u64 pa,
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void *p_data, unsigned int bytes);
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bool intel_gvt_mmio_is_cmd_access(struct intel_gvt *gvt,
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unsigned int offset);
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bool intel_gvt_mmio_is_unalign(struct intel_gvt *gvt, unsigned int offset);
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void intel_gvt_mmio_set_accessed(struct intel_gvt *gvt, unsigned int offset);
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void intel_gvt_mmio_set_cmd_accessed(struct intel_gvt *gvt,
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unsigned int offset);
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bool intel_gvt_mmio_has_mode_mask(struct intel_gvt *gvt, unsigned int offset);
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int intel_vgpu_default_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
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void *p_data, unsigned int bytes);
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int intel_vgpu_default_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
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void *p_data, unsigned int bytes);
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#endif
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