drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv50.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 "mem.h"
  23
  24 #include <core/memory.h>
  25 #include <subdev/bar.h>
  26 #include <subdev/fb.h>
  27
  28 #include <nvif/class.h>
  29 #include <nvif/if500b.h>
  30 #include <nvif/if500d.h>
  31 #include <nvif/unpack.h>
  32
  33 int
  34 nv50_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
  35              u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
  36 {
  37         struct nv50_vmm_map_v0 uvmm = {};
  38         union {
  39                 struct nv50_mem_map_vn vn;
  40                 struct nv50_mem_map_v0 v0;
  41         } *args = argv;
  42         struct nvkm_device *device = mmu->subdev.device;
  43         struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
  44         u64 size = nvkm_memory_size(memory);
  45         int ret = -ENOSYS;
  46
  47         if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
  48                 uvmm.ro   = args->v0.ro;
  49                 uvmm.kind = args->v0.kind;
  50                 uvmm.comp = args->v0.comp;
  51         } else
  52         if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
  53         } else
  54                 return ret;
  55
  56         ret = nvkm_vmm_get(bar, 12, size, pvma);
  57         if (ret)
  58                 return ret;
  59
  60         *paddr = device->func->resource_addr(device, 1) + (*pvma)->addr;
  61         *psize = (*pvma)->size;
  62         return nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm));
  63 }
  64
  65 int
  66 nv50_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
  67              void *argv, u32 argc, struct nvkm_memory **pmemory)
  68 {
  69         union {
  70                 struct nv50_mem_vn vn;
  71                 struct nv50_mem_v0 v0;
  72         } *args = argv;
  73         int ret = -ENOSYS;
  74         bool contig;
  75
  76         if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
  77                 type   = args->v0.bankswz ? 0x02 : 0x01;
  78                 contig = args->v0.contig;
  79         } else
  80         if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
  81                 type   = 0x01;
  82                 contig = false;
  83         } else
  84                 return -ENOSYS;
  85
  86         return nvkm_ram_get(mmu->subdev.device, NVKM_RAM_MM_NORMAL, type,
  87                             page, size, contig, false, pmemory);
  88 }