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 "nouveau_mem.h" 23 #include "nouveau_drv.h" 24 #include "nouveau_bo.h" 25 26 #include <drm/ttm/ttm_bo_driver.h> 27 28 #include <nvif/class.h> 29 #include <nvif/if000a.h> 30 #include <nvif/if500b.h> 31 #include <nvif/if500d.h> 32 #include <nvif/if900b.h> 33 #include <nvif/if900d.h> 34 35 int 36 nouveau_mem_map(struct nouveau_mem *mem, 37 struct nvif_vmm *vmm, struct nvif_vma *vma) 38 { 39 union { 40 struct nv50_vmm_map_v0 nv50; 41 struct gf100_vmm_map_v0 gf100; 42 } args; 43 u32 argc = 0; 44 45 switch (vmm->object.oclass) { 46 case NVIF_CLASS_VMM_NV04: 47 break; 48 case NVIF_CLASS_VMM_NV50: 49 args.nv50.version = 0; 50 args.nv50.ro = 0; 51 args.nv50.priv = 0; 52 args.nv50.kind = mem->kind; 53 args.nv50.comp = mem->comp; 54 argc = sizeof(args.nv50); 55 break; 56 case NVIF_CLASS_VMM_GF100: 57 case NVIF_CLASS_VMM_GM200: 58 case NVIF_CLASS_VMM_GP100: 59 args.gf100.version = 0; 60 if (mem->mem.type & NVIF_MEM_VRAM) 61 args.gf100.vol = 0; 62 else 63 args.gf100.vol = 1; 64 args.gf100.ro = 0; 65 args.gf100.priv = 0; 66 args.gf100.kind = mem->kind; 67 argc = sizeof(args.gf100); 68 break; 69 default: 70 WARN_ON(1); 71 return -ENOSYS; 72 } 73 74 return nvif_vmm_map(vmm, vma->addr, mem->mem.size, &args, argc, &mem->mem, 0); 75 } 76 77 void 78 nouveau_mem_fini(struct nouveau_mem *mem) 79 { 80 nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[1]); 81 nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[0]); 82 mutex_lock(&mem->cli->drm->master.lock); 83 nvif_mem_dtor(&mem->mem); 84 mutex_unlock(&mem->cli->drm->master.lock); 85 } 86 87 int 88 nouveau_mem_host(struct ttm_resource *reg, struct ttm_tt *tt) 89 { 90 struct nouveau_mem *mem = nouveau_mem(reg); 91 struct nouveau_cli *cli = mem->cli; 92 struct nouveau_drm *drm = cli->drm; 93 struct nvif_mmu *mmu = &cli->mmu; 94 struct nvif_mem_ram_v0 args = {}; 95 u8 type; 96 int ret; 97 98 if (!nouveau_drm_use_coherent_gpu_mapping(drm)) 99 type = drm->ttm.type_ncoh[!!mem->kind]; 100 else 101 type = drm->ttm.type_host[0]; 102 103 if (mem->kind && !(mmu->type[type].type & NVIF_MEM_KIND)) 104 mem->comp = mem->kind = 0; 105 if (mem->comp && !(mmu->type[type].type & NVIF_MEM_COMP)) { 106 if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100) 107 mem->kind = mmu->kind[mem->kind]; 108 mem->comp = 0; 109 } 110 111 if (tt->sg) 112 args.sgl = tt->sg->sgl; 113 else 114 args.dma = tt->dma_address; 115 116 mutex_lock(&drm->master.lock); 117 ret = nvif_mem_ctor_type(mmu, "ttmHostMem", cli->mem->oclass, type, PAGE_SHIFT, 118 reg->num_pages << PAGE_SHIFT, 119 &args, sizeof(args), &mem->mem); 120 mutex_unlock(&drm->master.lock); 121 return ret; 122 } 123 124 int 125 nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page) 126 { 127 struct nouveau_mem *mem = nouveau_mem(reg); 128 struct nouveau_cli *cli = mem->cli; 129 struct nouveau_drm *drm = cli->drm; 130 struct nvif_mmu *mmu = &cli->mmu; 131 u64 size = ALIGN(reg->num_pages << PAGE_SHIFT, 1 << page); 132 int ret; 133 134 mutex_lock(&drm->master.lock); 135 switch (cli->mem->oclass) { 136 case NVIF_CLASS_MEM_GF100: 137 ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass, 138 drm->ttm.type_vram, page, size, 139 &(struct gf100_mem_v0) { 140 .contig = contig, 141 }, sizeof(struct gf100_mem_v0), 142 &mem->mem); 143 break; 144 case NVIF_CLASS_MEM_NV50: 145 ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass, 146 drm->ttm.type_vram, page, size, 147 &(struct nv50_mem_v0) { 148 .bankswz = mmu->kind[mem->kind] == 2, 149 .contig = contig, 150 }, sizeof(struct nv50_mem_v0), 151 &mem->mem); 152 break; 153 default: 154 ret = -ENOSYS; 155 WARN_ON(1); 156 break; 157 } 158 mutex_unlock(&drm->master.lock); 159 160 reg->start = mem->mem.addr >> PAGE_SHIFT; 161 return ret; 162 } 163 164 void 165 nouveau_mem_del(struct ttm_resource_manager *man, struct ttm_resource *reg) 166 { 167 struct nouveau_mem *mem = nouveau_mem(reg); 168 169 nouveau_mem_fini(mem); 170 ttm_resource_fini(man, reg); 171 kfree(mem); 172 } 173 174 int 175 nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp, 176 struct ttm_resource **res) 177 { 178 struct nouveau_mem *mem; 179 180 if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL))) 181 return -ENOMEM; 182 183 mem->cli = cli; 184 mem->kind = kind; 185 mem->comp = comp; 186 187 *res = &mem->base; 188 return 0; 189 } 190 191 bool 192 nouveau_mem_intersects(struct ttm_resource *res, 193 const struct ttm_place *place, 194 size_t size) 195 { 196 u32 num_pages = PFN_UP(size); 197 198 /* Don't evict BOs outside of the requested placement range */ 199 if (place->fpfn >= (res->start + num_pages) || 200 (place->lpfn && place->lpfn <= res->start)) 201 return false; 202 203 return true; 204 } 205 206 bool 207 nouveau_mem_compatible(struct ttm_resource *res, 208 const struct ttm_place *place, 209 size_t size) 210 { 211 u32 num_pages = PFN_UP(size); 212 213 if (res->start < place->fpfn || 214 (place->lpfn && (res->start + num_pages) > place->lpfn)) 215 return false; 216 217 return true; 218 } 219