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.
26 #include <core/client.h>
27 #include <core/memory.h>
29 #include <nvif/if000c.h>
30 #include <nvif/unpack.h>
32 static const struct nvkm_object_func nvkm_uvmm;
34 nvkm_uvmm_search(struct nvkm_client *client, u64 handle)
36 struct nvkm_object *object;
38 object = nvkm_object_search(client, handle, &nvkm_uvmm);
40 return (void *)object;
42 return nvkm_uvmm(object)->vmm;
46 nvkm_uvmm_mthd_pfnclr(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
48 struct nvkm_client *client = uvmm->object.client;
50 struct nvif_vmm_pfnclr_v0 v0;
52 struct nvkm_vmm *vmm = uvmm->vmm;
56 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
66 mutex_lock(&vmm->mutex);
67 ret = nvkm_vmm_pfn_unmap(vmm, addr, size);
68 mutex_unlock(&vmm->mutex);
75 nvkm_uvmm_mthd_pfnmap(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
77 struct nvkm_client *client = uvmm->object.client;
79 struct nvif_vmm_pfnmap_v0 v0;
81 struct nvkm_vmm *vmm = uvmm->vmm;
83 u64 addr, size, *phys;
86 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) {
91 if (argc != (size >> page) * sizeof(args->v0.phys[0]))
100 mutex_lock(&vmm->mutex);
101 ret = nvkm_vmm_pfn_map(vmm, page, addr, size, phys);
102 mutex_unlock(&vmm->mutex);
109 nvkm_uvmm_mthd_unmap(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
111 struct nvkm_client *client = uvmm->object.client;
113 struct nvif_vmm_unmap_v0 v0;
115 struct nvkm_vmm *vmm = uvmm->vmm;
116 struct nvkm_vma *vma;
120 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
121 addr = args->v0.addr;
125 mutex_lock(&vmm->mutex);
126 vma = nvkm_vmm_node_search(vmm, addr);
127 if (ret = -ENOENT, !vma || vma->addr != addr) {
128 VMM_DEBUG(vmm, "lookup %016llx: %016llx",
129 addr, vma ? vma->addr : ~0ULL);
133 if (ret = -ENOENT, (!vma->user && !client->super) || vma->busy) {
134 VMM_DEBUG(vmm, "denied %016llx: %d %d %d", addr,
135 vma->user, !client->super, vma->busy);
139 if (ret = -EINVAL, !vma->memory) {
140 VMM_DEBUG(vmm, "unmapped");
144 nvkm_vmm_unmap_locked(vmm, vma, false);
147 mutex_unlock(&vmm->mutex);
152 nvkm_uvmm_mthd_map(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
154 struct nvkm_client *client = uvmm->object.client;
156 struct nvif_vmm_map_v0 v0;
158 u64 addr, size, handle, offset;
159 struct nvkm_vmm *vmm = uvmm->vmm;
160 struct nvkm_vma *vma;
161 struct nvkm_memory *memory;
164 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) {
165 addr = args->v0.addr;
166 size = args->v0.size;
167 handle = args->v0.memory;
168 offset = args->v0.offset;
172 memory = nvkm_umem_search(client, handle);
173 if (IS_ERR(memory)) {
174 VMM_DEBUG(vmm, "memory %016llx %ld\n", handle, PTR_ERR(memory));
175 return PTR_ERR(memory);
178 mutex_lock(&vmm->mutex);
179 if (ret = -ENOENT, !(vma = nvkm_vmm_node_search(vmm, addr))) {
180 VMM_DEBUG(vmm, "lookup %016llx", addr);
184 if (ret = -ENOENT, (!vma->user && !client->super) || vma->busy) {
185 VMM_DEBUG(vmm, "denied %016llx: %d %d %d", addr,
186 vma->user, !client->super, vma->busy);
190 if (ret = -EINVAL, vma->mapped && !vma->memory) {
191 VMM_DEBUG(vmm, "pfnmap %016llx", addr);
195 if (ret = -EINVAL, vma->addr != addr || vma->size != size) {
196 if (addr + size > vma->addr + vma->size || vma->memory ||
197 (vma->refd == NVKM_VMA_PAGE_NONE && !vma->mapref)) {
198 VMM_DEBUG(vmm, "split %d %d %d "
199 "%016llx %016llx %016llx %016llx",
200 !!vma->memory, vma->refd, vma->mapref,
201 addr, size, vma->addr, (u64)vma->size);
205 vma = nvkm_vmm_node_split(vmm, vma, addr, size);
212 mutex_unlock(&vmm->mutex);
214 ret = nvkm_memory_map(memory, offset, vmm, vma, argv, argc);
216 /* Successful map will clear vma->busy. */
217 nvkm_memory_unref(&memory);
221 mutex_lock(&vmm->mutex);
223 nvkm_vmm_unmap_region(vmm, vma);
225 mutex_unlock(&vmm->mutex);
226 nvkm_memory_unref(&memory);
231 nvkm_uvmm_mthd_put(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
233 struct nvkm_client *client = uvmm->object.client;
235 struct nvif_vmm_put_v0 v0;
237 struct nvkm_vmm *vmm = uvmm->vmm;
238 struct nvkm_vma *vma;
242 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
243 addr = args->v0.addr;
247 mutex_lock(&vmm->mutex);
248 vma = nvkm_vmm_node_search(vmm, args->v0.addr);
249 if (ret = -ENOENT, !vma || vma->addr != addr || vma->part) {
250 VMM_DEBUG(vmm, "lookup %016llx: %016llx %d", addr,
251 vma ? vma->addr : ~0ULL, vma ? vma->part : 0);
255 if (ret = -ENOENT, (!vma->user && !client->super) || vma->busy) {
256 VMM_DEBUG(vmm, "denied %016llx: %d %d %d", addr,
257 vma->user, !client->super, vma->busy);
261 nvkm_vmm_put_locked(vmm, vma);
264 mutex_unlock(&vmm->mutex);
269 nvkm_uvmm_mthd_get(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
271 struct nvkm_client *client = uvmm->object.client;
273 struct nvif_vmm_get_v0 v0;
275 struct nvkm_vmm *vmm = uvmm->vmm;
276 struct nvkm_vma *vma;
278 bool getref, mapref, sparse;
282 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
283 getref = args->v0.type == NVIF_VMM_GET_V0_PTES;
284 mapref = args->v0.type == NVIF_VMM_GET_V0_ADDR;
285 sparse = args->v0.sparse;
286 page = args->v0.page;
287 align = args->v0.align;
288 size = args->v0.size;
292 mutex_lock(&vmm->mutex);
293 ret = nvkm_vmm_get_locked(vmm, getref, mapref, sparse,
294 page, align, size, &vma);
295 mutex_unlock(&vmm->mutex);
299 args->v0.addr = vma->addr;
300 vma->user = !client->super;
305 nvkm_uvmm_mthd_page(struct nvkm_uvmm *uvmm, void *argv, u32 argc)
308 struct nvif_vmm_page_v0 v0;
310 const struct nvkm_vmm_page *page;
314 page = uvmm->vmm->func->page;
315 for (nr = 0; page[nr].shift; nr++);
317 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
318 if ((index = args->v0.index) >= nr)
320 type = page[index].type;
321 args->v0.shift = page[index].shift;
322 args->v0.sparse = !!(type & NVKM_VMM_PAGE_SPARSE);
323 args->v0.vram = !!(type & NVKM_VMM_PAGE_VRAM);
324 args->v0.host = !!(type & NVKM_VMM_PAGE_HOST);
325 args->v0.comp = !!(type & NVKM_VMM_PAGE_COMP);
333 nvkm_uvmm_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
335 struct nvkm_uvmm *uvmm = nvkm_uvmm(object);
337 case NVIF_VMM_V0_PAGE : return nvkm_uvmm_mthd_page (uvmm, argv, argc);
338 case NVIF_VMM_V0_GET : return nvkm_uvmm_mthd_get (uvmm, argv, argc);
339 case NVIF_VMM_V0_PUT : return nvkm_uvmm_mthd_put (uvmm, argv, argc);
340 case NVIF_VMM_V0_MAP : return nvkm_uvmm_mthd_map (uvmm, argv, argc);
341 case NVIF_VMM_V0_UNMAP : return nvkm_uvmm_mthd_unmap (uvmm, argv, argc);
342 case NVIF_VMM_V0_PFNMAP: return nvkm_uvmm_mthd_pfnmap(uvmm, argv, argc);
343 case NVIF_VMM_V0_PFNCLR: return nvkm_uvmm_mthd_pfnclr(uvmm, argv, argc);
344 case NVIF_VMM_V0_MTHD(0x00) ... NVIF_VMM_V0_MTHD(0x7f):
345 if (uvmm->vmm->func->mthd) {
346 return uvmm->vmm->func->mthd(uvmm->vmm,
358 nvkm_uvmm_dtor(struct nvkm_object *object)
360 struct nvkm_uvmm *uvmm = nvkm_uvmm(object);
361 nvkm_vmm_unref(&uvmm->vmm);
365 static const struct nvkm_object_func
367 .dtor = nvkm_uvmm_dtor,
368 .mthd = nvkm_uvmm_mthd,
372 nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
373 struct nvkm_object **pobject)
375 struct nvkm_mmu *mmu = nvkm_ummu(oclass->parent)->mmu;
376 const bool more = oclass->base.maxver >= 0;
378 struct nvif_vmm_v0 v0;
380 const struct nvkm_vmm_page *page;
381 struct nvkm_uvmm *uvmm;
386 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, more))) {
387 managed = args->v0.managed != 0;
388 addr = args->v0.addr;
389 size = args->v0.size;
393 if (!(uvmm = kzalloc(sizeof(*uvmm), GFP_KERNEL)))
395 nvkm_object_ctor(&nvkm_uvmm, oclass, &uvmm->object);
396 *pobject = &uvmm->object;
399 ret = mmu->func->vmm.ctor(mmu, managed, addr, size, argv, argc,
400 NULL, "user", &uvmm->vmm);
404 uvmm->vmm->debug = max(uvmm->vmm->debug, oclass->client->debug);
409 uvmm->vmm = nvkm_vmm_ref(mmu->vmm);
412 page = uvmm->vmm->func->page;
413 args->v0.page_nr = 0;
414 while (page && (page++)->shift)
416 args->v0.addr = uvmm->vmm->start;
417 args->v0.size = uvmm->vmm->limit;