1/*
  2 * Copyright 2017 Red Hat Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 */
 22#include "vmm.h"
 23
 24void
 25gk104_vmm_lpt_invalid(struct nvkm_vmm *vmm,
 26		      struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
 27{
 28	/* VALID_FALSE + PRIV tells the MMU to ignore corresponding SPTEs. */
 29	VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(1) /* PRIV. */, ptes);
 30}
 31
 32static const struct nvkm_vmm_desc_func
 33gk104_vmm_lpt = {
 34	.invalid = gk104_vmm_lpt_invalid,
 35	.unmap = gf100_vmm_pgt_unmap,
 36	.mem = gf100_vmm_pgt_mem,
 37};
 38
 39const struct nvkm_vmm_desc
 40gk104_vmm_desc_17_12[] = {
 41	{ SPT, 15, 8, 0x1000, &gf100_vmm_pgt },
 42	{ PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
 43	{}
 44};
 45
 46const struct nvkm_vmm_desc
 47gk104_vmm_desc_17_17[] = {
 48	{ LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
 49	{ PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
 50	{}
 51};
 52
 53const struct nvkm_vmm_desc
 54gk104_vmm_desc_16_12[] = {
 55	{ SPT, 14, 8, 0x1000, &gf100_vmm_pgt },
 56	{ PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
 57	{}
 58};
 59
 60const struct nvkm_vmm_desc
 61gk104_vmm_desc_16_16[] = {
 62	{ LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
 63	{ PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
 64	{}
 65};
 66
 67static const struct nvkm_vmm_func
 68gk104_vmm_17 = {
 69	.join = gf100_vmm_join,
 70	.part = gf100_vmm_part,
 71	.aper = gf100_vmm_aper,
 72	.valid = gf100_vmm_valid,
 73	.flush = gf100_vmm_flush,
 74	.invalidate_pdb = gf100_vmm_invalidate_pdb,
 75	.page = {
 76		{ 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC },
 77		{ 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx },
 78		{}
 79	}
 80};
 81
 82static const struct nvkm_vmm_func
 83gk104_vmm_16 = {
 84	.join = gf100_vmm_join,
 85	.part = gf100_vmm_part,
 86	.aper = gf100_vmm_aper,
 87	.valid = gf100_vmm_valid,
 88	.flush = gf100_vmm_flush,
 89	.invalidate_pdb = gf100_vmm_invalidate_pdb,
 90	.page = {
 91		{ 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC },
 92		{ 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx },
 93		{}
 94	}
 95};
 96
 97int
 98gk104_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
 99	      void *argv, u32 argc, struct lock_class_key *key,
100	      const char *name, struct nvkm_vmm **pvmm)
101{
102	return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, managed, addr,
103			      size, argv, argc, key, name, pvmm);
104}