1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2017 Red Hat Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun * all copies or substantial portions of the Software.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*4882a593Smuzhiyun * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*4882a593Smuzhiyun * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*4882a593Smuzhiyun * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*4882a593Smuzhiyun * OTHER DEALINGS IN THE SOFTWARE.
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun #include <nvif/mem.h>
23*4882a593Smuzhiyun #include <nvif/client.h>
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #include <nvif/if000a.h>
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun int
nvif_mem_ctor_map(struct nvif_mmu * mmu,const char * name,u8 type,u64 size,struct nvif_mem * mem)28*4882a593Smuzhiyun nvif_mem_ctor_map(struct nvif_mmu *mmu, const char *name, u8 type, u64 size,
29*4882a593Smuzhiyun struct nvif_mem *mem)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun int ret = nvif_mem_ctor(mmu, name, mmu->mem, NVIF_MEM_MAPPABLE | type,
32*4882a593Smuzhiyun 0, size, NULL, 0, mem);
33*4882a593Smuzhiyun if (ret == 0) {
34*4882a593Smuzhiyun ret = nvif_object_map(&mem->object, NULL, 0);
35*4882a593Smuzhiyun if (ret)
36*4882a593Smuzhiyun nvif_mem_dtor(mem);
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun return ret;
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun void
nvif_mem_dtor(struct nvif_mem * mem)42*4882a593Smuzhiyun nvif_mem_dtor(struct nvif_mem *mem)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun nvif_object_dtor(&mem->object);
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun int
nvif_mem_ctor_type(struct nvif_mmu * mmu,const char * name,s32 oclass,int type,u8 page,u64 size,void * argv,u32 argc,struct nvif_mem * mem)48*4882a593Smuzhiyun nvif_mem_ctor_type(struct nvif_mmu *mmu, const char *name, s32 oclass,
49*4882a593Smuzhiyun int type, u8 page, u64 size, void *argv, u32 argc,
50*4882a593Smuzhiyun struct nvif_mem *mem)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun struct nvif_mem_v0 *args;
53*4882a593Smuzhiyun u8 stack[128];
54*4882a593Smuzhiyun int ret;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun mem->object.client = NULL;
57*4882a593Smuzhiyun if (type < 0)
58*4882a593Smuzhiyun return -EINVAL;
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun if (sizeof(*args) + argc > sizeof(stack)) {
61*4882a593Smuzhiyun if (!(args = kmalloc(sizeof(*args) + argc, GFP_KERNEL)))
62*4882a593Smuzhiyun return -ENOMEM;
63*4882a593Smuzhiyun } else {
64*4882a593Smuzhiyun args = (void *)stack;
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun args->version = 0;
67*4882a593Smuzhiyun args->type = type;
68*4882a593Smuzhiyun args->page = page;
69*4882a593Smuzhiyun args->size = size;
70*4882a593Smuzhiyun memcpy(args->data, argv, argc);
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun ret = nvif_object_ctor(&mmu->object, name ? name : "nvifMem", 0, oclass,
73*4882a593Smuzhiyun args, sizeof(*args) + argc, &mem->object);
74*4882a593Smuzhiyun if (ret == 0) {
75*4882a593Smuzhiyun mem->type = mmu->type[type].type;
76*4882a593Smuzhiyun mem->page = args->page;
77*4882a593Smuzhiyun mem->addr = args->addr;
78*4882a593Smuzhiyun mem->size = args->size;
79*4882a593Smuzhiyun }
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun if (args != (void *)stack)
82*4882a593Smuzhiyun kfree(args);
83*4882a593Smuzhiyun return ret;
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun int
nvif_mem_ctor(struct nvif_mmu * mmu,const char * name,s32 oclass,u8 type,u8 page,u64 size,void * argv,u32 argc,struct nvif_mem * mem)88*4882a593Smuzhiyun nvif_mem_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass, u8 type,
89*4882a593Smuzhiyun u8 page, u64 size, void *argv, u32 argc, struct nvif_mem *mem)
90*4882a593Smuzhiyun {
91*4882a593Smuzhiyun int ret = -EINVAL, i;
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun mem->object.client = NULL;
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun for (i = 0; ret && i < mmu->type_nr; i++) {
96*4882a593Smuzhiyun if ((mmu->type[i].type & type) == type) {
97*4882a593Smuzhiyun ret = nvif_mem_ctor_type(mmu, name, oclass, i, page,
98*4882a593Smuzhiyun size, argv, argc, mem);
99*4882a593Smuzhiyun }
100*4882a593Smuzhiyun }
101*4882a593Smuzhiyun
102*4882a593Smuzhiyun return ret;
103*4882a593Smuzhiyun }
104