2 * Copyright 2017 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
24 #include <subdev/fb.h>
25 #include <subdev/timer.h>
26 #include <engine/gr.h>
28 #include <nvif/if500d.h>
29 #include <nvif/unpack.h>
32 nv50_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
33 u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
35 u64 next = addr + map->type, data;
39 map->type += ptes * map->ctag;
42 for (log2blk = 7; log2blk >= 0; log2blk--) {
44 if (ptes >= pten && IS_ALIGNED(ptei, pten))
48 data = next | (log2blk << 7);
49 next += pten * map->next;
53 VMM_WO064(pt, vmm, ptei++ * 8, data);
58 nv50_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
59 u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
61 VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
65 nv50_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
66 u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
68 if (map->page->shift == PAGE_SHIFT) {
69 VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes);
70 nvkm_kmap(pt->memory);
72 const u64 data = *map->dma++ + map->type;
73 VMM_WO064(pt, vmm, ptei++ * 8, data);
74 map->type += map->ctag;
76 nvkm_done(pt->memory);
80 VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
84 nv50_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
85 u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
87 VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
91 nv50_vmm_pgt_unmap(struct nvkm_vmm *vmm,
92 struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
94 VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes);
97 static const struct nvkm_vmm_desc_func
99 .unmap = nv50_vmm_pgt_unmap,
100 .mem = nv50_vmm_pgt_mem,
101 .dma = nv50_vmm_pgt_dma,
102 .sgl = nv50_vmm_pgt_sgl,
106 nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata)
108 struct nvkm_mmu_pt *pt;
109 u64 data = 0xdeadcafe00000000ULL;
110 if (pgt && (pt = pgt->pt[0])) {
112 case 16: data = 0x00000001; break;
113 case 12: data = 0x00000003;
114 switch (nvkm_memory_size(pt->memory)) {
115 case 0x100000: data |= 0x00000000; break;
116 case 0x040000: data |= 0x00000020; break;
117 case 0x020000: data |= 0x00000040; break;
118 case 0x010000: data |= 0x00000060; break;
129 switch (nvkm_memory_target(pt->memory)) {
130 case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break;
131 case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break;
132 case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; break;
145 nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
147 struct nvkm_vmm_join *join;
148 u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8);
151 if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data))
154 list_for_each_entry(join, &vmm->join, head) {
155 nvkm_kmap(join->inst);
156 nvkm_wo64(join->inst, pdeo, data);
157 nvkm_done(join->inst);
161 static const struct nvkm_vmm_desc_func
163 .pde = nv50_vmm_pgd_pde,
166 const struct nvkm_vmm_desc
167 nv50_vmm_desc_12[] = {
168 { PGT, 17, 8, 0x1000, &nv50_vmm_pgt },
169 { PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
173 const struct nvkm_vmm_desc
174 nv50_vmm_desc_16[] = {
175 { PGT, 13, 8, 0x1000, &nv50_vmm_pgt },
176 { PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
181 nv50_vmm_flush(struct nvkm_vmm *vmm, int level)
183 struct nvkm_subdev *subdev = &vmm->mmu->subdev;
184 struct nvkm_device *device = subdev->device;
187 mutex_lock(&subdev->mutex);
188 for (i = 0; i < NVKM_SUBDEV_NR; i++) {
189 if (!atomic_read(&vmm->engref[i]))
192 /* unfortunate hw bug workaround... */
193 if (i == NVKM_ENGINE_GR && device->gr) {
194 int ret = nvkm_gr_tlb_flush(device->gr);
200 case NVKM_ENGINE_GR : id = 0x00; break;
201 case NVKM_ENGINE_VP :
202 case NVKM_ENGINE_MSPDEC: id = 0x01; break;
203 case NVKM_SUBDEV_BAR : id = 0x06; break;
204 case NVKM_ENGINE_MSPPP :
205 case NVKM_ENGINE_MPEG : id = 0x08; break;
206 case NVKM_ENGINE_BSP :
207 case NVKM_ENGINE_MSVLD : id = 0x09; break;
208 case NVKM_ENGINE_CIPHER:
209 case NVKM_ENGINE_SEC : id = 0x0a; break;
210 case NVKM_ENGINE_CE0 : id = 0x0d; break;
215 nvkm_wr32(device, 0x100c80, (id << 16) | 1);
216 if (nvkm_msec(device, 2000,
217 if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
220 nvkm_error(subdev, "%s mmu invalidate timeout\n",
221 nvkm_subdev_name[i]);
223 mutex_unlock(&subdev->mutex);
227 nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc,
228 struct nvkm_vmm_map *map)
230 const struct nvkm_vmm_page *page = map->page;
232 struct nv50_vmm_map_vn vn;
233 struct nv50_vmm_map_v0 v0;
235 struct nvkm_device *device = vmm->mmu->subdev.device;
236 struct nvkm_ram *ram = device->fb->ram;
237 struct nvkm_memory *memory = map->memory;
238 u8 aper, kind, comp, priv, ro;
239 int kindn, ret = -ENOSYS;
242 map->type = map->ctag = 0;
243 map->next = 1 << page->shift;
245 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
247 priv = !!args->v0.priv;
248 kind = args->v0.kind & 0x7f;
249 comp = args->v0.comp & 0x03;
251 if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
257 VMM_DEBUG(vmm, "args");
261 switch (nvkm_memory_target(memory)) {
262 case NVKM_MEM_TARGET_VRAM:
264 map->type |= ram->stolen;
270 case NVKM_MEM_TARGET_HOST:
273 case NVKM_MEM_TARGET_NCOH:
281 kindm = vmm->mmu->func->kind(vmm->mmu, &kindn);
282 if (kind >= kindn || kindm[kind] == 0x7f) {
283 VMM_DEBUG(vmm, "kind %02x", kind);
287 if (map->mem && map->mem->type != kindm[kind]) {
288 VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind,
289 kindm[kind], map->mem->type);
294 u32 tags = (nvkm_memory_size(memory) >> 16) * comp;
295 if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) {
296 VMM_DEBUG(vmm, "comp %d %02x", aper, page->type);
300 ret = nvkm_memory_tags_get(memory, device, tags, NULL,
303 VMM_DEBUG(vmm, "comp %d", ret);
308 u32 tags = map->tags->mn->offset + (map->offset >> 16);
309 map->ctag |= (u64)comp << 49;
310 map->type |= (u64)comp << 47;
311 map->type |= (u64)tags << 49;
312 map->next |= map->ctag;
316 map->type |= BIT(0); /* Valid. */
317 map->type |= (u64)ro << 3;
318 map->type |= (u64)aper << 4;
319 map->type |= (u64)priv << 6;
320 map->type |= (u64)kind << 40;
325 nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
327 struct nvkm_vmm_join *join;
329 list_for_each_entry(join, &vmm->join, head) {
330 if (join->inst == inst) {
331 list_del(&join->head);
339 nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
341 const u32 pd_offset = vmm->mmu->func->vmm.pd_offset;
342 struct nvkm_vmm_join *join;
347 if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
350 list_add_tail(&join->head, &vmm->join);
352 nvkm_kmap(join->inst);
353 for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) {
354 if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) {
358 nvkm_wo64(join->inst, pd_offset + (pdei * 8), data);
360 nvkm_done(join->inst);
364 static const struct nvkm_vmm_func
366 .join = nv50_vmm_join,
367 .part = nv50_vmm_part,
368 .valid = nv50_vmm_valid,
369 .flush = nv50_vmm_flush,
370 .page_block = 1 << 29,
372 { 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC },
373 { 12, &nv50_vmm_desc_12[0], NVKM_VMM_PAGE_xVHx },
379 nv50_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
380 struct lock_class_key *key, const char *name,
381 struct nvkm_vmm **pvmm)
383 return nv04_vmm_new_(&nv50_vmm, mmu, 0, addr, size,
384 argv, argc, key, name, pvmm);