1 /*
2 * Copyright 2015 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
23 */
24 #include <core/memory.h>
25 #include <subdev/instmem.h>
26
27 void
nvkm_memory_ctor(const struct nvkm_memory_func * func,struct nvkm_memory * memory)28 nvkm_memory_ctor(const struct nvkm_memory_func *func,
29 struct nvkm_memory *memory)
30 {
31 memory->func = func;
32 }
33
34 void
nvkm_memory_del(struct nvkm_memory ** pmemory)35 nvkm_memory_del(struct nvkm_memory **pmemory)
36 {
37 struct nvkm_memory *memory = *pmemory;
38 if (memory && !WARN_ON(!memory->func)) {
39 if (memory->func->dtor)
40 *pmemory = memory->func->dtor(memory);
41 kfree(*pmemory);
42 *pmemory = NULL;
43 }
44 }
45
46 int
nvkm_memory_new(struct nvkm_device * device,enum nvkm_memory_target target,u64 size,u32 align,bool zero,struct nvkm_memory ** pmemory)47 nvkm_memory_new(struct nvkm_device *device, enum nvkm_memory_target target,
48 u64 size, u32 align, bool zero,
49 struct nvkm_memory **pmemory)
50 {
51 struct nvkm_instmem *imem = device->imem;
52 struct nvkm_memory *memory;
53 int ret = -ENOSYS;
54
55 if (unlikely(target != NVKM_MEM_TARGET_INST || !imem))
56 return -ENOSYS;
57
58 ret = nvkm_instobj_new(imem, size, align, zero, &memory);
59 if (ret)
60 return ret;
61
62 *pmemory = memory;
63 return 0;
64 }
65