drivers/gpu/drm/nouveau/nouveau_mem.c

   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 <subdev/ltc.h>
  27
  28 #include <drm/ttm/ttm_bo_driver.h>
  29
  30 int
  31 nouveau_mem_map(struct nouveau_mem *mem,
  32                 struct nvkm_vmm *vmm, struct nvkm_vma *vma)
  33 {
  34         nvkm_vm_map(vma, mem->_mem);
  35         return 0;
  36 }
  37
  38 void
  39 nouveau_mem_fini(struct nouveau_mem *mem)
  40 {
  41         if (mem->vma[1].node) {
  42                 nvkm_vm_unmap(&mem->vma[1]);
  43                 nvkm_vm_put(&mem->vma[1]);
  44         }
  45         if (mem->vma[0].node) {
  46                 nvkm_vm_unmap(&mem->vma[0]);
  47                 nvkm_vm_put(&mem->vma[0]);
  48         }
  49         nvkm_memory_tags_put(&mem->memory, nvxx_device(&mem->cli->device),
  50                              &mem->tags);
  51 }
  52
  53 int
  54 nouveau_mem_host(struct ttm_mem_reg *reg, struct ttm_dma_tt *tt)
  55 {
  56         struct nouveau_mem *mem = nouveau_mem(reg);
  57         struct nouveau_cli *cli = mem->cli;
  58
  59         if (mem->kind && cli->device.info.chipset == 0x50)
  60                 mem->comp = mem->kind = 0;
  61         if (mem->comp) {
  62                 if (cli->device.info.chipset >= 0xc0)
  63                         mem->kind = gf100_pte_storage_type_map[mem->kind];
  64                 mem->comp = 0;
  65         }
  66
  67         mem->__mem.size = (reg->num_pages << PAGE_SHIFT) >> 12;
  68         mem->__mem.memtype = (mem->comp << 7) | mem->kind;
  69         if (tt->ttm.sg) mem->__mem.sg    = tt->ttm.sg;
  70         else            mem->__mem.pages = tt->dma_address;
  71         mem->_mem = &mem->__mem;
  72         mem->mem.page = 12;
  73         mem->_mem->memory = &mem->memory;
  74         return 0;
  75 }
  76
  77 #include <subdev/fb/nv50.h>
  78
  79 struct nvkm_vram {
  80         struct nvkm_memory memory;
  81         struct nvkm_ram *ram;
  82         u8 page;
  83         struct nvkm_mm_node *mn;
  84 };
  85
  86 int
  87 nouveau_mem_vram(struct ttm_mem_reg *reg, bool contig, u8 page)
  88 {
  89         struct nouveau_mem *mem = nouveau_mem(reg);
  90         struct nouveau_cli *cli = mem->cli;
  91         struct nvkm_device *device = nvxx_device(&cli->device);
  92         u64 size = ALIGN(reg->num_pages << PAGE_SHIFT, 1 << page);
  93         u8  type;
  94         int ret;
  95
  96         mem->mem.page = page;
  97         mem->_mem = &mem->__mem;
  98
  99         if (cli->device.info.chipset < 0xc0) {
 100                 type = nv50_fb_memtype[mem->kind];
 101         } else {
 102                 if (!mem->comp)
 103                         mem->kind = gf100_pte_storage_type_map[mem->kind];
 104                 mem->comp = 0;
 105                 type = 0x01;
 106         }
 107
 108         ret = nvkm_ram_get(device, NVKM_RAM_MM_NORMAL, type, page, size,
 109                            contig, false, &mem->_mem->memory);
 110         if (ret)
 111                 return ret;
 112
 113         mem->_mem->size = size >> NVKM_RAM_MM_SHIFT;
 114         mem->_mem->offset = nvkm_memory_addr(mem->_mem->memory);
 115
 116         if (cli->device.info.chipset < 0xc0 && mem->comp) {
 117                 if (page == 16) {
 118                         ret = nvkm_memory_tags_get(mem->_mem->memory, device,
 119                                                    size >> page, NULL,
 120                                                    &mem->tags);
 121                         WARN_ON(ret);
 122                 }
 123                 if (!mem->tags || !mem->tags->mn)
 124                         mem->comp = 0;
 125         } else
 126         if (cli->device.info.chipset >= 0xc0 &&
 127             gf100_pte_storage_type_map[mem->kind] != mem->kind) {
 128                 if (page == 17) {
 129                         ret = nvkm_memory_tags_get(mem->_mem->memory, device,
 130                                                    size >> page,
 131                                                    nvkm_ltc_tags_clear,
 132                                                    &mem->tags);
 133                         WARN_ON(ret);
 134                 }
 135                 if (!mem->tags || !mem->tags->mn)
 136                         mem->kind = gf100_pte_storage_type_map[mem->kind];
 137         }
 138
 139         if (mem->tags && mem->tags->mn)
 140                 mem->_mem->tag = mem->tags->mn;
 141         mem->_mem->mem = ((struct nvkm_vram *)mem->_mem->memory)->mn;
 142         mem->_mem->memtype = (mem->comp << 7) | mem->kind;
 143
 144         reg->start = mem->_mem->offset >> PAGE_SHIFT;
 145         return ret;
 146 }
 147
 148 void
 149 nouveau_mem_del(struct ttm_mem_reg *reg)
 150 {
 151         struct nouveau_mem *mem = nouveau_mem(reg);
 152         nouveau_mem_fini(mem);
 153         kfree(reg->mm_node);
 154         reg->mm_node = NULL;
 155 }
 156
 157 static enum nvkm_memory_target
 158 nouveau_mem_memory_target(struct nvkm_memory *memory)
 159 {
 160         struct nouveau_mem *mem = container_of(memory, typeof(*mem), memory);
 161         if (mem->_mem->mem)
 162                 return NVKM_MEM_TARGET_VRAM;
 163         return NVKM_MEM_TARGET_HOST;
 164 };
 165
 166 static u8
 167 nouveau_mem_memory_page(struct nvkm_memory *memory)
 168 {
 169         struct nouveau_mem *mem = container_of(memory, typeof(*mem), memory);
 170         return mem->mem.page;
 171 };
 172
 173 static u64
 174 nouveau_mem_memory_size(struct nvkm_memory *memory)
 175 {
 176         struct nouveau_mem *mem = container_of(memory, typeof(*mem), memory);
 177         return mem->_mem->size << 12;
 178 }
 179
 180 static const struct nvkm_memory_func
 181 nouveau_mem_memory = {
 182         .target = nouveau_mem_memory_target,
 183         .page = nouveau_mem_memory_page,
 184         .size = nouveau_mem_memory_size,
 185 };
 186
 187 int
 188 nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
 189                 struct ttm_mem_reg *reg)
 190 {
 191         struct nouveau_mem *mem;
 192
 193         if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
 194                 return -ENOMEM;
 195         mem->cli = cli;
 196         mem->kind = kind;
 197         mem->comp = comp;
 198         nvkm_memory_ctor(&nouveau_mem_memory, &mem->memory);
 199
 200         reg->mm_node = mem;
 201         return 0;
 202 }