78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*
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* Copyright 2018 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 "vmm.h"
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#include <subdev/timer.h>
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static void
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tu102_vmm_flush(struct nvkm_vmm *vmm, int depth)
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{
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struct nvkm_device *device = vmm->mmu->subdev.device;
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u32 type = (5 /* CACHE_LEVEL_UP_TO_PDE3 */ - depth) << 24;
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type |= 0x00000001; /* PAGE_ALL */
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if (atomic_read(&vmm->engref[NVKM_SUBDEV_BAR]))
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type |= 0x00000006; /* HUB_ONLY | ALL PDB (hack) */
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mutex_lock(&vmm->mmu->mutex);
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nvkm_wr32(device, 0xb830a0, vmm->pd->pt[0]->addr >> 8);
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nvkm_wr32(device, 0xb830a4, 0x00000000);
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nvkm_wr32(device, 0x100e68, 0x00000000);
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nvkm_wr32(device, 0xb830b0, 0x80000000 | type);
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nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0xb830b0) & 0x80000000))
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break;
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);
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mutex_unlock(&vmm->mmu->mutex);
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}
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static const struct nvkm_vmm_func
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tu102_vmm = {
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.join = gv100_vmm_join,
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.part = gf100_vmm_part,
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.aper = gf100_vmm_aper,
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.valid = gp100_vmm_valid,
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.flush = tu102_vmm_flush,
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.mthd = gp100_vmm_mthd,
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.page = {
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{ 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
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{ 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
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{ 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
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{ 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
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{ 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
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{ 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
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{}
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}
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};
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int
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tu102_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
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void *argv, u32 argc, struct lock_class_key *key,
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const char *name, struct nvkm_vmm **pvmm)
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{
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return gp100_vmm_new_(&tu102_vmm, mmu, managed, addr, size,
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argv, argc, key, name, pvmm);
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}
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