2 * Copyright 2014 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.
22 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 #include <nvif/object.h>
26 #include <nvif/client.h>
27 #include <nvif/driver.h>
28 #include <nvif/ioctl.h>
31 nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack)
33 struct nvif_client *client = object->client;
35 struct nvif_ioctl_v0 v0;
38 if (size >= sizeof(*args) && args->v0.version == 0) {
39 if (object != &client->object)
40 args->v0.object = nvif_handle(object);
43 args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
47 return client->driver->ioctl(client->object.priv, data, size, hack);
51 nvif_object_sclass_put(struct nvif_sclass **psclass)
58 nvif_object_sclass_get(struct nvif_object *object, struct nvif_sclass **psclass)
61 struct nvif_ioctl_v0 ioctl;
62 struct nvif_ioctl_sclass_v0 sclass;
68 size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]);
69 if (!(args = kmalloc(size, GFP_KERNEL)))
71 args->ioctl.version = 0;
72 args->ioctl.type = NVIF_IOCTL_V0_SCLASS;
73 args->sclass.version = 0;
74 args->sclass.count = cnt;
76 ret = nvif_object_ioctl(object, args, size, NULL);
77 if (ret == 0 && args->sclass.count <= cnt)
79 cnt = args->sclass.count;
85 *psclass = kcalloc(args->sclass.count, sizeof(**psclass), GFP_KERNEL);
87 for (i = 0; i < args->sclass.count; i++) {
88 (*psclass)[i].oclass = args->sclass.oclass[i].oclass;
89 (*psclass)[i].minver = args->sclass.oclass[i].minver;
90 (*psclass)[i].maxver = args->sclass.oclass[i].maxver;
92 ret = args->sclass.count;
102 nvif_object_rd(struct nvif_object *object, int size, u64 addr)
105 struct nvif_ioctl_v0 ioctl;
106 struct nvif_ioctl_rd_v0 rd;
108 .ioctl.type = NVIF_IOCTL_V0_RD,
112 int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL);
121 nvif_object_wr(struct nvif_object *object, int size, u64 addr, u32 data)
124 struct nvif_ioctl_v0 ioctl;
125 struct nvif_ioctl_wr_v0 wr;
127 .ioctl.type = NVIF_IOCTL_V0_WR,
132 int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL);
139 nvif_object_mthd(struct nvif_object *object, u32 mthd, void *data, u32 size)
142 struct nvif_ioctl_v0 ioctl;
143 struct nvif_ioctl_mthd_v0 mthd;
148 if (sizeof(*args) + size > sizeof(stack)) {
149 if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL)))
152 args = (void *)stack;
154 args->ioctl.version = 0;
155 args->ioctl.type = NVIF_IOCTL_V0_MTHD;
156 args->mthd.version = 0;
157 args->mthd.method = mthd;
159 memcpy(args->mthd.data, data, size);
160 ret = nvif_object_ioctl(object, args, sizeof(*args) + size, NULL);
161 memcpy(data, args->mthd.data, size);
162 if (args != (void *)stack)
168 nvif_object_unmap_handle(struct nvif_object *object)
171 struct nvif_ioctl_v0 ioctl;
172 struct nvif_ioctl_unmap unmap;
174 .ioctl.type = NVIF_IOCTL_V0_UNMAP,
177 nvif_object_ioctl(object, &args, sizeof(args), NULL);
181 nvif_object_map_handle(struct nvif_object *object, void *argv, u32 argc,
182 u64 *handle, u64 *length)
185 struct nvif_ioctl_v0 ioctl;
186 struct nvif_ioctl_map_v0 map;
188 u32 argn = sizeof(*args) + argc;
191 if (!(args = kzalloc(argn, GFP_KERNEL)))
193 args->ioctl.type = NVIF_IOCTL_V0_MAP;
194 memcpy(args->map.data, argv, argc);
196 ret = nvif_object_ioctl(object, args, argn, NULL);
197 *handle = args->map.handle;
198 *length = args->map.length;
199 maptype = args->map.type;
201 return ret ? ret : (maptype == NVIF_IOCTL_MAP_V0_IO);
205 nvif_object_unmap(struct nvif_object *object)
207 struct nvif_client *client = object->client;
208 if (object->map.ptr) {
209 if (object->map.size) {
210 client->driver->unmap(client, object->map.ptr,
212 object->map.size = 0;
214 object->map.ptr = NULL;
215 nvif_object_unmap_handle(object);
220 nvif_object_map(struct nvif_object *object, void *argv, u32 argc)
222 struct nvif_client *client = object->client;
224 int ret = nvif_object_map_handle(object, argv, argc, &handle, &length);
227 object->map.ptr = client->driver->map(client,
230 if (ret = -ENOMEM, object->map.ptr) {
231 object->map.size = length;
235 object->map.ptr = (void *)(unsigned long)handle;
238 nvif_object_unmap_handle(object);
244 nvif_object_dtor(struct nvif_object *object)
247 struct nvif_ioctl_v0 ioctl;
248 struct nvif_ioctl_del del;
250 .ioctl.type = NVIF_IOCTL_V0_DEL,
256 nvif_object_unmap(object);
257 nvif_object_ioctl(object, &args, sizeof(args), NULL);
258 object->client = NULL;
262 nvif_object_ctor(struct nvif_object *parent, const char *name, u32 handle,
263 s32 oclass, void *data, u32 size, struct nvif_object *object)
266 struct nvif_ioctl_v0 ioctl;
267 struct nvif_ioctl_new_v0 new;
271 object->client = NULL;
272 object->name = name ? name : "nvifObject";
273 object->handle = handle;
274 object->oclass = oclass;
275 object->map.ptr = NULL;
276 object->map.size = 0;
279 if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) {
280 nvif_object_dtor(object);
284 object->parent = parent->parent;
286 args->ioctl.version = 0;
287 args->ioctl.type = NVIF_IOCTL_V0_NEW;
288 args->new.version = 0;
289 args->new.route = parent->client->route;
290 args->new.token = nvif_handle(object);
291 args->new.object = nvif_handle(object);
292 args->new.handle = handle;
293 args->new.oclass = oclass;
295 memcpy(args->new.data, data, size);
296 ret = nvif_object_ioctl(parent, args, sizeof(*args) + size,
298 memcpy(data, args->new.data, size);
301 object->client = parent->client;
305 nvif_object_dtor(object);