drm/nouveau/nouveau_mem.c

0001 /*
0002  * Copyright 2017 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  */
0022 #include "nouveau_mem.h"
0023 #include "nouveau_drv.h"
0024 #include "nouveau_bo.h"
0025
0026 #include <drm/ttm/ttm_bo_driver.h>
0027
0028 #include <nvif/class.h>
0029 #include <nvif/if000a.h>
0030 #include <nvif/if500b.h>
0031 #include <nvif/if500d.h>
0032 #include <nvif/if900b.h>
0033 #include <nvif/if900d.h>
0034
0035 int
0036 nouveau_mem_map(struct nouveau_mem *mem,
0037         struct nvif_vmm *vmm, struct nvif_vma *vma)
0038 {
0039     union {
0040         struct nv50_vmm_map_v0 nv50;
0041         struct gf100_vmm_map_v0 gf100;
0042     } args;
0043     u32 argc = 0;
0044
0045     switch (vmm->object.oclass) {
0046     case NVIF_CLASS_VMM_NV04:
0047         break;
0048     case NVIF_CLASS_VMM_NV50:
0049         args.nv50.version = 0;
0050         args.nv50.ro = 0;
0051         args.nv50.priv = 0;
0052         args.nv50.kind = mem->kind;
0053         args.nv50.comp = mem->comp;
0054         argc = sizeof(args.nv50);
0055         break;
0056     case NVIF_CLASS_VMM_GF100:
0057     case NVIF_CLASS_VMM_GM200:
0058     case NVIF_CLASS_VMM_GP100:
0059         args.gf100.version = 0;
0060         if (mem->mem.type & NVIF_MEM_VRAM)
0061             args.gf100.vol = 0;
0062         else
0063             args.gf100.vol = 1;
0064         args.gf100.ro = 0;
0065         args.gf100.priv = 0;
0066         args.gf100.kind = mem->kind;
0067         argc = sizeof(args.gf100);
0068         break;
0069     default:
0070         WARN_ON(1);
0071         return -ENOSYS;
0072     }
0073
0074     return nvif_vmm_map(vmm, vma->addr, mem->mem.size, &args, argc, &mem->mem, 0);
0075 }
0076
0077 void
0078 nouveau_mem_fini(struct nouveau_mem *mem)
0079 {
0080     nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[1]);
0081     nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[0]);
0082     mutex_lock(&mem->cli->drm->master.lock);
0083     nvif_mem_dtor(&mem->mem);
0084     mutex_unlock(&mem->cli->drm->master.lock);
0085 }
0086
0087 int
0088 nouveau_mem_host(struct ttm_resource *reg, struct ttm_tt *tt)
0089 {
0090     struct nouveau_mem *mem = nouveau_mem(reg);
0091     struct nouveau_cli *cli = mem->cli;
0092     struct nouveau_drm *drm = cli->drm;
0093     struct nvif_mmu *mmu = &cli->mmu;
0094     struct nvif_mem_ram_v0 args = {};
0095     u8 type;
0096     int ret;
0097
0098     if (!nouveau_drm_use_coherent_gpu_mapping(drm))
0099         type = drm->ttm.type_ncoh[!!mem->kind];
0100     else
0101         type = drm->ttm.type_host[0];
0102
0103     if (mem->kind && !(mmu->type[type].type & NVIF_MEM_KIND))
0104         mem->comp = mem->kind = 0;
0105     if (mem->comp && !(mmu->type[type].type & NVIF_MEM_COMP)) {
0106         if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100)
0107             mem->kind = mmu->kind[mem->kind];
0108         mem->comp = 0;
0109     }
0110
0111     if (tt->sg)
0112         args.sgl = tt->sg->sgl;
0113     else
0114         args.dma = tt->dma_address;
0115
0116     mutex_lock(&drm->master.lock);
0117     ret = nvif_mem_ctor_type(mmu, "ttmHostMem", cli->mem->oclass, type, PAGE_SHIFT,
0118                  reg->num_pages << PAGE_SHIFT,
0119                  &args, sizeof(args), &mem->mem);
0120     mutex_unlock(&drm->master.lock);
0121     return ret;
0122 }
0123
0124 int
0125 nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page)
0126 {
0127     struct nouveau_mem *mem = nouveau_mem(reg);
0128     struct nouveau_cli *cli = mem->cli;
0129     struct nouveau_drm *drm = cli->drm;
0130     struct nvif_mmu *mmu = &cli->mmu;
0131     u64 size = ALIGN(reg->num_pages << PAGE_SHIFT, 1 << page);
0132     int ret;
0133
0134     mutex_lock(&drm->master.lock);
0135     switch (cli->mem->oclass) {
0136     case NVIF_CLASS_MEM_GF100:
0137         ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass,
0138                      drm->ttm.type_vram, page, size,
0139                      &(struct gf100_mem_v0) {
0140                         .contig = contig,
0141                      }, sizeof(struct gf100_mem_v0),
0142                      &mem->mem);
0143         break;
0144     case NVIF_CLASS_MEM_NV50:
0145         ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass,
0146                      drm->ttm.type_vram, page, size,
0147                      &(struct nv50_mem_v0) {
0148                         .bankswz = mmu->kind[mem->kind] == 2,
0149                         .contig = contig,
0150                      }, sizeof(struct nv50_mem_v0),
0151                      &mem->mem);
0152         break;
0153     default:
0154         ret = -ENOSYS;
0155         WARN_ON(1);
0156         break;
0157     }
0158     mutex_unlock(&drm->master.lock);
0159
0160     reg->start = mem->mem.addr >> PAGE_SHIFT;
0161     return ret;
0162 }
0163
0164 void
0165 nouveau_mem_del(struct ttm_resource_manager *man, struct ttm_resource *reg)
0166 {
0167     struct nouveau_mem *mem = nouveau_mem(reg);
0168
0169     nouveau_mem_fini(mem);
0170     ttm_resource_fini(man, reg);
0171     kfree(mem);
0172 }
0173
0174 int
0175 nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
0176         struct ttm_resource **res)
0177 {
0178     struct nouveau_mem *mem;
0179
0180     if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
0181         return -ENOMEM;
0182
0183     mem->cli = cli;
0184     mem->kind = kind;
0185     mem->comp = comp;
0186
0187     *res = &mem->base;
0188     return 0;
0189 }