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
nouveau_mem_map(struct nouveau_mem * mem,struct nvif_vmm * vmm,struct nvif_vma * vma)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
nouveau_mem_fini(struct nouveau_mem * mem)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
nouveau_mem_host(struct ttm_resource * reg,struct ttm_tt * tt)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
nouveau_mem_vram(struct ttm_resource * reg,bool contig,u8 page)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
nouveau_mem_del(struct ttm_resource_manager * man,struct ttm_resource * reg)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
nouveau_mem_new(struct nouveau_cli * cli,u8 kind,u8 comp,struct ttm_resource ** res)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
nouveau_mem_intersects(struct ttm_resource * res,const struct ttm_place * place,size_t size)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
nouveau_mem_compatible(struct ttm_resource * res,const struct ttm_place * place,size_t size)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