ab2ee9ffa3
Some GPU units are capable of supporting "replayable" page faults, where the execution unit will wait for SW to fixup GPU page tables rather than triggering a channel-fatal fault. This feature isn't useful (it's harmful, even) unless something like HMM is being used to manage events appearing in the replayable fault buffer, so, it's disabled by default. This commit allows a client to request it be enabled. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
45 lines
1.7 KiB
C
45 lines
1.7 KiB
C
/*
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* Copyright 2017 Red Hat Inc.
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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 shall be included in
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* all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "mem.h"
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#include "vmm.h"
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#include <core/option.h>
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#include <nvif/class.h>
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static const struct nvkm_mmu_func
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gp10b_mmu = {
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.dma_bits = 47,
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.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
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.mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
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.vmm = {{ -1, 0, NVIF_CLASS_VMM_GP100}, gp10b_vmm_new },
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.kind = gm200_mmu_kind,
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.kind_sys = true,
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};
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int
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gp10b_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu)
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{
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if (!nvkm_boolopt(device->cfgopt, "GP100MmuLayout", true))
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return gm20b_mmu_new(device, index, pmmu);
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return nvkm_mmu_new_(&gp10b_mmu, device, index, pmmu);
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}
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