19f6219fdSBen Skeggs /*
29f6219fdSBen Skeggs * Copyright 2017 Red Hat Inc.
39f6219fdSBen Skeggs *
49f6219fdSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a
59f6219fdSBen Skeggs * copy of this software and associated documentation files (the "Software"),
69f6219fdSBen Skeggs * to deal in the Software without restriction, including without limitation
79f6219fdSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense,
89f6219fdSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the
99f6219fdSBen Skeggs * Software is furnished to do so, subject to the following conditions:
109f6219fdSBen Skeggs *
119f6219fdSBen Skeggs * The above copyright notice and this permission notice shall be included in
129f6219fdSBen Skeggs * all copies or substantial portions of the Software.
139f6219fdSBen Skeggs *
149f6219fdSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
159f6219fdSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
169f6219fdSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
179f6219fdSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
189f6219fdSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
199f6219fdSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
209f6219fdSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE.
219f6219fdSBen Skeggs */
229f6219fdSBen Skeggs #include "vmm.h"
239f6219fdSBen Skeggs
24fd542a3eSBen Skeggs #include <subdev/fb.h>
25fd542a3eSBen Skeggs #include <subdev/timer.h>
26fd542a3eSBen Skeggs #include <engine/gr.h>
27fd542a3eSBen Skeggs
289f6219fdSBen Skeggs #include <nvif/if500d.h>
299f6219fdSBen Skeggs #include <nvif/unpack.h>
309f6219fdSBen Skeggs
31fd542a3eSBen Skeggs static inline void
nv50_vmm_pgt_pte(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes,struct nvkm_vmm_map * map,u64 addr)32fd542a3eSBen Skeggs nv50_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
33fd542a3eSBen Skeggs u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
34fd542a3eSBen Skeggs {
352ffa64ebSBen Skeggs u64 next = addr + map->type, data;
36fd542a3eSBen Skeggs u32 pten;
37fd542a3eSBen Skeggs int log2blk;
38fd542a3eSBen Skeggs
39fd542a3eSBen Skeggs map->type += ptes * map->ctag;
40fd542a3eSBen Skeggs
41fd542a3eSBen Skeggs while (ptes) {
42fd542a3eSBen Skeggs for (log2blk = 7; log2blk >= 0; log2blk--) {
43fd542a3eSBen Skeggs pten = 1 << log2blk;
44fd542a3eSBen Skeggs if (ptes >= pten && IS_ALIGNED(ptei, pten))
45fd542a3eSBen Skeggs break;
46fd542a3eSBen Skeggs }
47fd542a3eSBen Skeggs
48fd542a3eSBen Skeggs data = next | (log2blk << 7);
49fd542a3eSBen Skeggs next += pten * map->next;
50fd542a3eSBen Skeggs ptes -= pten;
51fd542a3eSBen Skeggs
52fd542a3eSBen Skeggs while (pten--)
53fd542a3eSBen Skeggs VMM_WO064(pt, vmm, ptei++ * 8, data);
54fd542a3eSBen Skeggs }
55fd542a3eSBen Skeggs }
56fd542a3eSBen Skeggs
57fd542a3eSBen Skeggs static void
nv50_vmm_pgt_sgl(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes,struct nvkm_vmm_map * map)58fd542a3eSBen Skeggs nv50_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
59fd542a3eSBen Skeggs u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
60fd542a3eSBen Skeggs {
61fd542a3eSBen Skeggs VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
62fd542a3eSBen Skeggs }
63fd542a3eSBen Skeggs
64fd542a3eSBen Skeggs static void
nv50_vmm_pgt_dma(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes,struct nvkm_vmm_map * map)65fd542a3eSBen Skeggs nv50_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
66fd542a3eSBen Skeggs u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
67fd542a3eSBen Skeggs {
68fd542a3eSBen Skeggs if (map->page->shift == PAGE_SHIFT) {
69fd542a3eSBen Skeggs VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes);
70fd542a3eSBen Skeggs nvkm_kmap(pt->memory);
71fd542a3eSBen Skeggs while (ptes--) {
722ffa64ebSBen Skeggs const u64 data = *map->dma++ + map->type;
73fd542a3eSBen Skeggs VMM_WO064(pt, vmm, ptei++ * 8, data);
74fd542a3eSBen Skeggs map->type += map->ctag;
75fd542a3eSBen Skeggs }
76fd542a3eSBen Skeggs nvkm_done(pt->memory);
77fd542a3eSBen Skeggs return;
78fd542a3eSBen Skeggs }
79fd542a3eSBen Skeggs
80fd542a3eSBen Skeggs VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
81fd542a3eSBen Skeggs }
82fd542a3eSBen Skeggs
83fd542a3eSBen Skeggs static void
nv50_vmm_pgt_mem(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes,struct nvkm_vmm_map * map)84fd542a3eSBen Skeggs nv50_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
85fd542a3eSBen Skeggs u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
86fd542a3eSBen Skeggs {
87fd542a3eSBen Skeggs VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
88fd542a3eSBen Skeggs }
89fd542a3eSBen Skeggs
90fd542a3eSBen Skeggs static void
nv50_vmm_pgt_unmap(struct nvkm_vmm * vmm,struct nvkm_mmu_pt * pt,u32 ptei,u32 ptes)91fd542a3eSBen Skeggs nv50_vmm_pgt_unmap(struct nvkm_vmm *vmm,
92fd542a3eSBen Skeggs struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
93fd542a3eSBen Skeggs {
94fd542a3eSBen Skeggs VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes);
95fd542a3eSBen Skeggs }
96fd542a3eSBen Skeggs
979f6219fdSBen Skeggs static const struct nvkm_vmm_desc_func
989f6219fdSBen Skeggs nv50_vmm_pgt = {
99fd542a3eSBen Skeggs .unmap = nv50_vmm_pgt_unmap,
100fd542a3eSBen Skeggs .mem = nv50_vmm_pgt_mem,
101fd542a3eSBen Skeggs .dma = nv50_vmm_pgt_dma,
102fd542a3eSBen Skeggs .sgl = nv50_vmm_pgt_sgl,
1039f6219fdSBen Skeggs };
1049f6219fdSBen Skeggs
105fd542a3eSBen Skeggs static bool
nv50_vmm_pde(struct nvkm_vmm * vmm,struct nvkm_vmm_pt * pgt,u64 * pdata)106fd542a3eSBen Skeggs nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata)
107fd542a3eSBen Skeggs {
108fd542a3eSBen Skeggs struct nvkm_mmu_pt *pt;
109fd542a3eSBen Skeggs u64 data = 0xdeadcafe00000000ULL;
110fd542a3eSBen Skeggs if (pgt && (pt = pgt->pt[0])) {
111fd542a3eSBen Skeggs switch (pgt->page) {
112fd542a3eSBen Skeggs case 16: data = 0x00000001; break;
113fd542a3eSBen Skeggs case 12: data = 0x00000003;
114fd542a3eSBen Skeggs switch (nvkm_memory_size(pt->memory)) {
115fd542a3eSBen Skeggs case 0x100000: data |= 0x00000000; break;
116fd542a3eSBen Skeggs case 0x040000: data |= 0x00000020; break;
117fd542a3eSBen Skeggs case 0x020000: data |= 0x00000040; break;
118fd542a3eSBen Skeggs case 0x010000: data |= 0x00000060; break;
119fd542a3eSBen Skeggs default:
120fd542a3eSBen Skeggs WARN_ON(1);
121fd542a3eSBen Skeggs return false;
122fd542a3eSBen Skeggs }
123fd542a3eSBen Skeggs break;
124fd542a3eSBen Skeggs default:
125fd542a3eSBen Skeggs WARN_ON(1);
126fd542a3eSBen Skeggs return false;
127fd542a3eSBen Skeggs }
128fd542a3eSBen Skeggs
129fd542a3eSBen Skeggs switch (nvkm_memory_target(pt->memory)) {
130fd542a3eSBen Skeggs case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break;
131fd542a3eSBen Skeggs case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break;
132fd542a3eSBen Skeggs case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; break;
133fd542a3eSBen Skeggs default:
134fd542a3eSBen Skeggs WARN_ON(1);
135fd542a3eSBen Skeggs return false;
136fd542a3eSBen Skeggs }
137fd542a3eSBen Skeggs
138fd542a3eSBen Skeggs data |= pt->addr;
139fd542a3eSBen Skeggs }
140fd542a3eSBen Skeggs *pdata = data;
141fd542a3eSBen Skeggs return true;
142fd542a3eSBen Skeggs }
143fd542a3eSBen Skeggs
144fd542a3eSBen Skeggs static void
nv50_vmm_pgd_pde(struct nvkm_vmm * vmm,struct nvkm_vmm_pt * pgd,u32 pdei)145fd542a3eSBen Skeggs nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
146fd542a3eSBen Skeggs {
147fd542a3eSBen Skeggs struct nvkm_vmm_join *join;
148fd542a3eSBen Skeggs u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8);
149fd542a3eSBen Skeggs u64 data;
150fd542a3eSBen Skeggs
151fd542a3eSBen Skeggs if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data))
152fd542a3eSBen Skeggs return;
153fd542a3eSBen Skeggs
154fd542a3eSBen Skeggs list_for_each_entry(join, &vmm->join, head) {
155fd542a3eSBen Skeggs nvkm_kmap(join->inst);
156fd542a3eSBen Skeggs nvkm_wo64(join->inst, pdeo, data);
157fd542a3eSBen Skeggs nvkm_done(join->inst);
158fd542a3eSBen Skeggs }
159fd542a3eSBen Skeggs }
160fd542a3eSBen Skeggs
1619f6219fdSBen Skeggs static const struct nvkm_vmm_desc_func
1629f6219fdSBen Skeggs nv50_vmm_pgd = {
163fd542a3eSBen Skeggs .pde = nv50_vmm_pgd_pde,
1649f6219fdSBen Skeggs };
1659f6219fdSBen Skeggs
1662ffa64ebSBen Skeggs const struct nvkm_vmm_desc
1679f6219fdSBen Skeggs nv50_vmm_desc_12[] = {
1689f6219fdSBen Skeggs { PGT, 17, 8, 0x1000, &nv50_vmm_pgt },
1699f6219fdSBen Skeggs { PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
1709f6219fdSBen Skeggs {}
1719f6219fdSBen Skeggs };
1729f6219fdSBen Skeggs
1732ffa64ebSBen Skeggs const struct nvkm_vmm_desc
1749f6219fdSBen Skeggs nv50_vmm_desc_16[] = {
1759f6219fdSBen Skeggs { PGT, 13, 8, 0x1000, &nv50_vmm_pgt },
1769f6219fdSBen Skeggs { PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
1779f6219fdSBen Skeggs {}
1789f6219fdSBen Skeggs };
1799f6219fdSBen Skeggs
1802ffa64ebSBen Skeggs void
nv50_vmm_flush(struct nvkm_vmm * vmm,int level)181fd542a3eSBen Skeggs nv50_vmm_flush(struct nvkm_vmm *vmm, int level)
182fd542a3eSBen Skeggs {
183fd542a3eSBen Skeggs struct nvkm_subdev *subdev = &vmm->mmu->subdev;
184fd542a3eSBen Skeggs struct nvkm_device *device = subdev->device;
185fd542a3eSBen Skeggs int i, id;
186fd542a3eSBen Skeggs
1875ec69c91SBen Skeggs mutex_lock(&vmm->mmu->mutex);
188fd542a3eSBen Skeggs for (i = 0; i < NVKM_SUBDEV_NR; i++) {
189fd542a3eSBen Skeggs if (!atomic_read(&vmm->engref[i]))
190fd542a3eSBen Skeggs continue;
191fd542a3eSBen Skeggs
192fd542a3eSBen Skeggs /* unfortunate hw bug workaround... */
193fd542a3eSBen Skeggs if (i == NVKM_ENGINE_GR && device->gr) {
194fd542a3eSBen Skeggs int ret = nvkm_gr_tlb_flush(device->gr);
195fd542a3eSBen Skeggs if (ret != -ENODEV)
196fd542a3eSBen Skeggs continue;
197fd542a3eSBen Skeggs }
198fd542a3eSBen Skeggs
199fd542a3eSBen Skeggs switch (i) {
200fd542a3eSBen Skeggs case NVKM_ENGINE_GR : id = 0x00; break;
201fd542a3eSBen Skeggs case NVKM_ENGINE_VP :
202fd542a3eSBen Skeggs case NVKM_ENGINE_MSPDEC: id = 0x01; break;
203fd542a3eSBen Skeggs case NVKM_SUBDEV_BAR : id = 0x06; break;
204fd542a3eSBen Skeggs case NVKM_ENGINE_MSPPP :
205fd542a3eSBen Skeggs case NVKM_ENGINE_MPEG : id = 0x08; break;
206fd542a3eSBen Skeggs case NVKM_ENGINE_BSP :
207fd542a3eSBen Skeggs case NVKM_ENGINE_MSVLD : id = 0x09; break;
208fd542a3eSBen Skeggs case NVKM_ENGINE_CIPHER:
209fd542a3eSBen Skeggs case NVKM_ENGINE_SEC : id = 0x0a; break;
210353108a4SBen Skeggs case NVKM_ENGINE_CE : id = 0x0d; break;
211fd542a3eSBen Skeggs default:
212fd542a3eSBen Skeggs continue;
213fd542a3eSBen Skeggs }
214fd542a3eSBen Skeggs
215fd542a3eSBen Skeggs nvkm_wr32(device, 0x100c80, (id << 16) | 1);
216fd542a3eSBen Skeggs if (nvkm_msec(device, 2000,
217fd542a3eSBen Skeggs if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
218fd542a3eSBen Skeggs break;
219fd542a3eSBen Skeggs ) < 0)
2209c28abb7SBen Skeggs nvkm_error(subdev, "%s mmu invalidate timeout\n", nvkm_subdev_type[i]);
221fd542a3eSBen Skeggs }
2225ec69c91SBen Skeggs mutex_unlock(&vmm->mmu->mutex);
223fd542a3eSBen Skeggs }
224fd542a3eSBen Skeggs
2252ffa64ebSBen Skeggs int
nv50_vmm_valid(struct nvkm_vmm * vmm,void * argv,u32 argc,struct nvkm_vmm_map * map)226fd542a3eSBen Skeggs nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc,
227fd542a3eSBen Skeggs struct nvkm_vmm_map *map)
228fd542a3eSBen Skeggs {
229fd542a3eSBen Skeggs const struct nvkm_vmm_page *page = map->page;
230fd542a3eSBen Skeggs union {
231fd542a3eSBen Skeggs struct nv50_vmm_map_vn vn;
232fd542a3eSBen Skeggs struct nv50_vmm_map_v0 v0;
233fd542a3eSBen Skeggs } *args = argv;
234fd542a3eSBen Skeggs struct nvkm_device *device = vmm->mmu->subdev.device;
235fd542a3eSBen Skeggs struct nvkm_ram *ram = device->fb->ram;
236fd542a3eSBen Skeggs struct nvkm_memory *memory = map->memory;
237176ada03SJames Jones u8 aper, kind, kind_inv, comp, priv, ro;
238fd542a3eSBen Skeggs int kindn, ret = -ENOSYS;
239fd542a3eSBen Skeggs const u8 *kindm;
240fd542a3eSBen Skeggs
241fd542a3eSBen Skeggs map->type = map->ctag = 0;
242fd542a3eSBen Skeggs map->next = 1 << page->shift;
243fd542a3eSBen Skeggs
244fd542a3eSBen Skeggs if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
245fd542a3eSBen Skeggs ro = !!args->v0.ro;
246fd542a3eSBen Skeggs priv = !!args->v0.priv;
247fd542a3eSBen Skeggs kind = args->v0.kind & 0x7f;
248fd542a3eSBen Skeggs comp = args->v0.comp & 0x03;
249fd542a3eSBen Skeggs } else
250fd542a3eSBen Skeggs if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
251fd542a3eSBen Skeggs ro = 0;
252fd542a3eSBen Skeggs priv = 0;
253fd542a3eSBen Skeggs kind = 0x00;
254fd542a3eSBen Skeggs comp = 0;
255fd542a3eSBen Skeggs } else {
256fd542a3eSBen Skeggs VMM_DEBUG(vmm, "args");
257fd542a3eSBen Skeggs return ret;
258fd542a3eSBen Skeggs }
259fd542a3eSBen Skeggs
260fd542a3eSBen Skeggs switch (nvkm_memory_target(memory)) {
261fd542a3eSBen Skeggs case NVKM_MEM_TARGET_VRAM:
262fd542a3eSBen Skeggs if (ram->stolen) {
263fd542a3eSBen Skeggs map->type |= ram->stolen;
264fd542a3eSBen Skeggs aper = 3;
265fd542a3eSBen Skeggs } else {
266fd542a3eSBen Skeggs aper = 0;
267fd542a3eSBen Skeggs }
268fd542a3eSBen Skeggs break;
269fd542a3eSBen Skeggs case NVKM_MEM_TARGET_HOST:
270fd542a3eSBen Skeggs aper = 2;
271fd542a3eSBen Skeggs break;
272fd542a3eSBen Skeggs case NVKM_MEM_TARGET_NCOH:
273fd542a3eSBen Skeggs aper = 3;
274fd542a3eSBen Skeggs break;
275fd542a3eSBen Skeggs default:
276fd542a3eSBen Skeggs WARN_ON(1);
277fd542a3eSBen Skeggs return -EINVAL;
278fd542a3eSBen Skeggs }
279fd542a3eSBen Skeggs
280176ada03SJames Jones kindm = vmm->mmu->func->kind(vmm->mmu, &kindn, &kind_inv);
281176ada03SJames Jones if (kind >= kindn || kindm[kind] == kind_inv) {
282fd542a3eSBen Skeggs VMM_DEBUG(vmm, "kind %02x", kind);
283fd542a3eSBen Skeggs return -EINVAL;
284fd542a3eSBen Skeggs }
285fd542a3eSBen Skeggs
286fd542a3eSBen Skeggs if (map->mem && map->mem->type != kindm[kind]) {
287fd542a3eSBen Skeggs VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind,
288fd542a3eSBen Skeggs kindm[kind], map->mem->type);
289fd542a3eSBen Skeggs return -EINVAL;
290fd542a3eSBen Skeggs }
291fd542a3eSBen Skeggs
292fd542a3eSBen Skeggs if (comp) {
293fd542a3eSBen Skeggs u32 tags = (nvkm_memory_size(memory) >> 16) * comp;
294fd542a3eSBen Skeggs if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) {
295fd542a3eSBen Skeggs VMM_DEBUG(vmm, "comp %d %02x", aper, page->type);
296fd542a3eSBen Skeggs return -EINVAL;
297fd542a3eSBen Skeggs }
298fd542a3eSBen Skeggs
299*6b252cf4SDanilo Krummrich if (!map->no_comp) {
300fd542a3eSBen Skeggs ret = nvkm_memory_tags_get(memory, device, tags, NULL,
301fd542a3eSBen Skeggs &map->tags);
302fd542a3eSBen Skeggs if (ret) {
303fd542a3eSBen Skeggs VMM_DEBUG(vmm, "comp %d", ret);
304fd542a3eSBen Skeggs return ret;
305fd542a3eSBen Skeggs }
306fd542a3eSBen Skeggs
307fd542a3eSBen Skeggs if (map->tags->mn) {
308*6b252cf4SDanilo Krummrich u32 tags = map->tags->mn->offset +
309*6b252cf4SDanilo Krummrich (map->offset >> 16);
310fd542a3eSBen Skeggs map->ctag |= (u64)comp << 49;
311fd542a3eSBen Skeggs map->type |= (u64)comp << 47;
312fd542a3eSBen Skeggs map->type |= (u64)tags << 49;
313fd542a3eSBen Skeggs map->next |= map->ctag;
314fd542a3eSBen Skeggs }
315fd542a3eSBen Skeggs }
316*6b252cf4SDanilo Krummrich }
317fd542a3eSBen Skeggs
318fd542a3eSBen Skeggs map->type |= BIT(0); /* Valid. */
319fd542a3eSBen Skeggs map->type |= (u64)ro << 3;
320fd542a3eSBen Skeggs map->type |= (u64)aper << 4;
321fd542a3eSBen Skeggs map->type |= (u64)priv << 6;
322fd542a3eSBen Skeggs map->type |= (u64)kind << 40;
323fd542a3eSBen Skeggs return 0;
324fd542a3eSBen Skeggs }
325fd542a3eSBen Skeggs
3262ffa64ebSBen Skeggs void
nv50_vmm_part(struct nvkm_vmm * vmm,struct nvkm_memory * inst)3279f6219fdSBen Skeggs nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
3289f6219fdSBen Skeggs {
3299f6219fdSBen Skeggs struct nvkm_vmm_join *join;
3309f6219fdSBen Skeggs
3319f6219fdSBen Skeggs list_for_each_entry(join, &vmm->join, head) {
3329f6219fdSBen Skeggs if (join->inst == inst) {
3339f6219fdSBen Skeggs list_del(&join->head);
3349f6219fdSBen Skeggs kfree(join);
3359f6219fdSBen Skeggs break;
3369f6219fdSBen Skeggs }
3379f6219fdSBen Skeggs }
3389f6219fdSBen Skeggs }
3399f6219fdSBen Skeggs
3402ffa64ebSBen Skeggs int
nv50_vmm_join(struct nvkm_vmm * vmm,struct nvkm_memory * inst)3419f6219fdSBen Skeggs nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
3429f6219fdSBen Skeggs {
343fd542a3eSBen Skeggs const u32 pd_offset = vmm->mmu->func->vmm.pd_offset;
3449f6219fdSBen Skeggs struct nvkm_vmm_join *join;
345fd542a3eSBen Skeggs int ret = 0;
346fd542a3eSBen Skeggs u64 data;
347fd542a3eSBen Skeggs u32 pdei;
3489f6219fdSBen Skeggs
3499f6219fdSBen Skeggs if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
3509f6219fdSBen Skeggs return -ENOMEM;
3519f6219fdSBen Skeggs join->inst = inst;
3529f6219fdSBen Skeggs list_add_tail(&join->head, &vmm->join);
353fd542a3eSBen Skeggs
354fd542a3eSBen Skeggs nvkm_kmap(join->inst);
355fd542a3eSBen Skeggs for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) {
356fd542a3eSBen Skeggs if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) {
357fd542a3eSBen Skeggs ret = -EINVAL;
358fd542a3eSBen Skeggs break;
359fd542a3eSBen Skeggs }
360fd542a3eSBen Skeggs nvkm_wo64(join->inst, pd_offset + (pdei * 8), data);
361fd542a3eSBen Skeggs }
362fd542a3eSBen Skeggs nvkm_done(join->inst);
363fd542a3eSBen Skeggs return ret;
3649f6219fdSBen Skeggs }
3659f6219fdSBen Skeggs
3669f6219fdSBen Skeggs static const struct nvkm_vmm_func
3679f6219fdSBen Skeggs nv50_vmm = {
3689f6219fdSBen Skeggs .join = nv50_vmm_join,
3699f6219fdSBen Skeggs .part = nv50_vmm_part,
370fd542a3eSBen Skeggs .valid = nv50_vmm_valid,
371fd542a3eSBen Skeggs .flush = nv50_vmm_flush,
3729f6219fdSBen Skeggs .page_block = 1 << 29,
3739f6219fdSBen Skeggs .page = {
3749f6219fdSBen Skeggs { 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC },
3759f6219fdSBen Skeggs { 12, &nv50_vmm_desc_12[0], NVKM_VMM_PAGE_xVHx },
3769f6219fdSBen Skeggs {}
3779f6219fdSBen Skeggs }
3789f6219fdSBen Skeggs };
3799f6219fdSBen Skeggs
3809f6219fdSBen Skeggs int
nv50_vmm_new(struct nvkm_mmu * mmu,bool managed,u64 addr,u64 size,void * argv,u32 argc,struct lock_class_key * key,const char * name,struct nvkm_vmm ** pvmm)3812606f291SBen Skeggs nv50_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
3822606f291SBen Skeggs void *argv, u32 argc, struct lock_class_key *key, const char *name,
3839f6219fdSBen Skeggs struct nvkm_vmm **pvmm)
3849f6219fdSBen Skeggs {
3852606f291SBen Skeggs return nv04_vmm_new_(&nv50_vmm, mmu, 0, managed, addr, size,
3869f6219fdSBen Skeggs argv, argc, key, name, pvmm);
3879f6219fdSBen Skeggs }
388