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 <drm/ttm/ttm_tt.h>
23
24 #include "nouveau_mem.h"
25 #include "nouveau_drv.h"
26 #include "nouveau_bo.h"
27
28
29 #include <nvif/class.h>
30 #include <nvif/if000a.h>
31 #include <nvif/if500b.h>
32 #include <nvif/if500d.h>
33 #include <nvif/if900b.h>
34 #include <nvif/if900d.h>
35
36 int
nouveau_mem_map(struct nouveau_mem * mem,struct nvif_vmm * vmm,struct nvif_vma * vma)37 nouveau_mem_map(struct nouveau_mem *mem,
38 struct nvif_vmm *vmm, struct nvif_vma *vma)
39 {
40 union {
41 struct nv50_vmm_map_v0 nv50;
42 struct gf100_vmm_map_v0 gf100;
43 } args;
44 u32 argc = 0;
45
46 switch (vmm->object.oclass) {
47 case NVIF_CLASS_VMM_NV04:
48 break;
49 case NVIF_CLASS_VMM_NV50:
50 args.nv50.version = 0;
51 args.nv50.ro = 0;
52 args.nv50.priv = 0;
53 args.nv50.kind = mem->kind;
54 args.nv50.comp = mem->comp;
55 argc = sizeof(args.nv50);
56 break;
57 case NVIF_CLASS_VMM_GF100:
58 case NVIF_CLASS_VMM_GM200:
59 case NVIF_CLASS_VMM_GP100:
60 args.gf100.version = 0;
61 if (mem->mem.type & NVIF_MEM_VRAM)
62 args.gf100.vol = 0;
63 else
64 args.gf100.vol = 1;
65 args.gf100.ro = 0;
66 args.gf100.priv = 0;
67 args.gf100.kind = mem->kind;
68 argc = sizeof(args.gf100);
69 break;
70 default:
71 WARN_ON(1);
72 return -ENOSYS;
73 }
74
75 return nvif_vmm_map(vmm, vma->addr, mem->mem.size, &args, argc, &mem->mem, 0);
76 }
77
78 void
nouveau_mem_fini(struct nouveau_mem * mem)79 nouveau_mem_fini(struct nouveau_mem *mem)
80 {
81 nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[1]);
82 nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[0]);
83 mutex_lock(&mem->cli->drm->master.lock);
84 nvif_mem_dtor(&mem->mem);
85 mutex_unlock(&mem->cli->drm->master.lock);
86 }
87
88 int
nouveau_mem_host(struct ttm_resource * reg,struct ttm_tt * tt)89 nouveau_mem_host(struct ttm_resource *reg, struct ttm_tt *tt)
90 {
91 struct nouveau_mem *mem = nouveau_mem(reg);
92 struct nouveau_cli *cli = mem->cli;
93 struct nouveau_drm *drm = cli->drm;
94 struct nvif_mmu *mmu = &cli->mmu;
95 struct nvif_mem_ram_v0 args = {};
96 u8 type;
97 int ret;
98
99 if (!nouveau_drm_use_coherent_gpu_mapping(drm))
100 type = drm->ttm.type_ncoh[!!mem->kind];
101 else
102 type = drm->ttm.type_host[0];
103
104 if (mem->kind && !(mmu->type[type].type & NVIF_MEM_KIND))
105 mem->comp = mem->kind = 0;
106 if (mem->comp && !(mmu->type[type].type & NVIF_MEM_COMP)) {
107 if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100)
108 mem->kind = mmu->kind[mem->kind];
109 mem->comp = 0;
110 }
111
112 if (tt->sg)
113 args.sgl = tt->sg->sgl;
114 else
115 args.dma = tt->dma_address;
116
117 mutex_lock(&drm->master.lock);
118 ret = nvif_mem_ctor_type(mmu, "ttmHostMem", cli->mem->oclass, type, PAGE_SHIFT,
119 reg->size,
120 &args, sizeof(args), &mem->mem);
121 mutex_unlock(&drm->master.lock);
122 return ret;
123 }
124
125 int
nouveau_mem_vram(struct ttm_resource * reg,bool contig,u8 page)126 nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page)
127 {
128 struct nouveau_mem *mem = nouveau_mem(reg);
129 struct nouveau_cli *cli = mem->cli;
130 struct nouveau_drm *drm = cli->drm;
131 struct nvif_mmu *mmu = &cli->mmu;
132 u64 size = ALIGN(reg->size, 1 << page);
133 int ret;
134
135 mutex_lock(&drm->master.lock);
136 switch (cli->mem->oclass) {
137 case NVIF_CLASS_MEM_GF100:
138 ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass,
139 drm->ttm.type_vram, page, size,
140 &(struct gf100_mem_v0) {
141 .contig = contig,
142 }, sizeof(struct gf100_mem_v0),
143 &mem->mem);
144 break;
145 case NVIF_CLASS_MEM_NV50:
146 ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass,
147 drm->ttm.type_vram, page, size,
148 &(struct nv50_mem_v0) {
149 .bankswz = mmu->kind[mem->kind] == 2,
150 .contig = contig,
151 }, sizeof(struct nv50_mem_v0),
152 &mem->mem);
153 break;
154 default:
155 ret = -ENOSYS;
156 WARN_ON(1);
157 break;
158 }
159 mutex_unlock(&drm->master.lock);
160
161 reg->start = mem->mem.addr >> PAGE_SHIFT;
162 return ret;
163 }
164
165 void
nouveau_mem_del(struct ttm_resource_manager * man,struct ttm_resource * reg)166 nouveau_mem_del(struct ttm_resource_manager *man, struct ttm_resource *reg)
167 {
168 struct nouveau_mem *mem = nouveau_mem(reg);
169
170 nouveau_mem_fini(mem);
171 ttm_resource_fini(man, reg);
172 kfree(mem);
173 }
174
175 int
nouveau_mem_new(struct nouveau_cli * cli,u8 kind,u8 comp,struct ttm_resource ** res)176 nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
177 struct ttm_resource **res)
178 {
179 struct nouveau_mem *mem;
180
181 if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
182 return -ENOMEM;
183
184 mem->cli = cli;
185 mem->kind = kind;
186 mem->comp = comp;
187
188 *res = &mem->base;
189 return 0;
190 }
191
192 bool
nouveau_mem_intersects(struct ttm_resource * res,const struct ttm_place * place,size_t size)193 nouveau_mem_intersects(struct ttm_resource *res,
194 const struct ttm_place *place,
195 size_t size)
196 {
197 u32 num_pages = PFN_UP(size);
198
199 /* Don't evict BOs outside of the requested placement range */
200 if (place->fpfn >= (res->start + num_pages) ||
201 (place->lpfn && place->lpfn <= res->start))
202 return false;
203
204 return true;
205 }
206
207 bool
nouveau_mem_compatible(struct ttm_resource * res,const struct ttm_place * place,size_t size)208 nouveau_mem_compatible(struct ttm_resource *res,
209 const struct ttm_place *place,
210 size_t size)
211 {
212 u32 num_pages = PFN_UP(size);
213
214 if (res->start < place->fpfn ||
215 (place->lpfn && (res->start + num_pages) > place->lpfn))
216 return false;
217
218 return true;
219 }
220