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
28 nvkm_memory_ctor(const struct nvkm_memory_func *func,
29 		 struct nvkm_memory *memory)
30 {
31 	memory->func = func;
32 }
33 
34 void
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
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