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1/*2 * Copyright 2017 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include "vmm.h"23 24#include <nvif/ifb00d.h>25#include <nvif/unpack.h>26 27static void28gm200_vmm_pgt_sparse(struct nvkm_vmm *vmm,29 struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)30{31 /* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */32 VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(32) /* VOL. */, ptes);33}34 35static const struct nvkm_vmm_desc_func36gm200_vmm_spt = {37 .unmap = gf100_vmm_pgt_unmap,38 .sparse = gm200_vmm_pgt_sparse,39 .mem = gf100_vmm_pgt_mem,40 .dma = gf100_vmm_pgt_dma,41 .sgl = gf100_vmm_pgt_sgl,42};43 44static const struct nvkm_vmm_desc_func45gm200_vmm_lpt = {46 .invalid = gk104_vmm_lpt_invalid,47 .unmap = gf100_vmm_pgt_unmap,48 .sparse = gm200_vmm_pgt_sparse,49 .mem = gf100_vmm_pgt_mem,50};51 52static void53gm200_vmm_pgd_sparse(struct nvkm_vmm *vmm,54 struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes)55{56 /* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */57 VMM_FO064(pt, vmm, pdei * 8, BIT_ULL(35) /* VOL_BIG. */, pdes);58}59 60static const struct nvkm_vmm_desc_func61gm200_vmm_pgd = {62 .unmap = gf100_vmm_pgt_unmap,63 .sparse = gm200_vmm_pgd_sparse,64 .pde = gf100_vmm_pgd_pde,65};66 67const struct nvkm_vmm_desc68gm200_vmm_desc_17_12[] = {69 { SPT, 15, 8, 0x1000, &gm200_vmm_spt },70 { PGD, 13, 8, 0x1000, &gm200_vmm_pgd },71 {}72};73 74const struct nvkm_vmm_desc75gm200_vmm_desc_17_17[] = {76 { LPT, 10, 8, 0x1000, &gm200_vmm_lpt },77 { PGD, 13, 8, 0x1000, &gm200_vmm_pgd },78 {}79};80 81const struct nvkm_vmm_desc82gm200_vmm_desc_16_12[] = {83 { SPT, 14, 8, 0x1000, &gm200_vmm_spt },84 { PGD, 14, 8, 0x1000, &gm200_vmm_pgd },85 {}86};87 88const struct nvkm_vmm_desc89gm200_vmm_desc_16_16[] = {90 { LPT, 10, 8, 0x1000, &gm200_vmm_lpt },91 { PGD, 14, 8, 0x1000, &gm200_vmm_pgd },92 {}93};94 95int96gm200_vmm_join_(struct nvkm_vmm *vmm, struct nvkm_memory *inst, u64 base)97{98 if (vmm->func->page[1].shift == 16)99 base |= BIT_ULL(11);100 return gf100_vmm_join_(vmm, inst, base);101}102 103int104gm200_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)105{106 return gm200_vmm_join_(vmm, inst, 0);107}108 109static const struct nvkm_vmm_func110gm200_vmm_17 = {111 .join = gm200_vmm_join,112 .part = gf100_vmm_part,113 .aper = gf100_vmm_aper,114 .valid = gf100_vmm_valid,115 .flush = gf100_vmm_flush,116 .invalidate_pdb = gf100_vmm_invalidate_pdb,117 .page = {118 { 27, &gm200_vmm_desc_17_17[1], NVKM_VMM_PAGE_Sxxx },119 { 17, &gm200_vmm_desc_17_17[0], NVKM_VMM_PAGE_SVxC },120 { 12, &gm200_vmm_desc_17_12[0], NVKM_VMM_PAGE_SVHx },121 {}122 }123};124 125static const struct nvkm_vmm_func126gm200_vmm_16 = {127 .join = gm200_vmm_join,128 .part = gf100_vmm_part,129 .aper = gf100_vmm_aper,130 .valid = gf100_vmm_valid,131 .flush = gf100_vmm_flush,132 .invalidate_pdb = gf100_vmm_invalidate_pdb,133 .page = {134 { 27, &gm200_vmm_desc_16_16[1], NVKM_VMM_PAGE_Sxxx },135 { 16, &gm200_vmm_desc_16_16[0], NVKM_VMM_PAGE_SVxC },136 { 12, &gm200_vmm_desc_16_12[0], NVKM_VMM_PAGE_SVHx },137 {}138 }139};140 141int142gm200_vmm_new_(const struct nvkm_vmm_func *func_16,143 const struct nvkm_vmm_func *func_17,144 struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,145 void *argv, u32 argc, struct lock_class_key *key,146 const char *name, struct nvkm_vmm **pvmm)147{148 const struct nvkm_vmm_func *func;149 union {150 struct gm200_vmm_vn vn;151 struct gm200_vmm_v0 v0;152 } *args = argv;153 int ret = -ENOSYS;154 155 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {156 switch (args->v0.bigpage) {157 case 16: func = func_16; break;158 case 17: func = func_17; break;159 default:160 return -EINVAL;161 }162 } else163 if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {164 func = func_17;165 } else166 return ret;167 168 return nvkm_vmm_new_(func, mmu, 0, managed, addr, size, key, name, pvmm);169}170 171int172gm200_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,173 void *argv, u32 argc, struct lock_class_key *key,174 const char *name, struct nvkm_vmm **pvmm)175{176 return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,177 size, argv, argc, key, name, pvmm);178}179 180int181gm200_vmm_new_fixed(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,182 void *argv, u32 argc, struct lock_class_key *key,183 const char *name, struct nvkm_vmm **pvmm)184{185 return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, managed, addr,186 size, argv, argc, key, name, pvmm);187}188