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https://github.com/NVIDIA/open-gpu-kernel-modules.git
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43 lines
1.9 KiB
C
43 lines
1.9 KiB
C
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/*******************************************************************************
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Copyright (c) 2020 NVIDIA Corporation
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to
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deal in the Software without restriction, including without limitation the
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rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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sell copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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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
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DEALINGS IN THE SOFTWARE.
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*******************************************************************************/
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#include "uvm_hal_types.h"
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#include "hwref/hopper/gh100/dev_fault.h"
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// TODO: Bug 1835884: [uvm] Query the maximum number of subcontexts from RM
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// ... to validate the ve_id
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#define MAX_SUBCONTEXTS 64
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NvU8 uvm_hal_hopper_fault_buffer_get_ve_id(NvU16 mmu_engine_id, uvm_mmu_engine_type_t mmu_engine_type)
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{
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// Only graphics engines can generate MMU faults from different subcontexts
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if (mmu_engine_type == UVM_MMU_ENGINE_TYPE_GRAPHICS) {
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NvU16 ve_id = mmu_engine_id - NV_PFAULT_MMU_ENG_ID_GRAPHICS;
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UVM_ASSERT(ve_id < MAX_SUBCONTEXTS);
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return (NvU8)ve_id;
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}
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else {
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return 0;
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}
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}
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