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/mmu.h>
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun #include <nvif/class.h>
25*4882a593Smuzhiyun #include <nvif/if0008.h>
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun void
nvif_mmu_dtor(struct nvif_mmu * mmu)28*4882a593Smuzhiyun nvif_mmu_dtor(struct nvif_mmu *mmu)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun kfree(mmu->kind);
31*4882a593Smuzhiyun kfree(mmu->type);
32*4882a593Smuzhiyun kfree(mmu->heap);
33*4882a593Smuzhiyun nvif_object_dtor(&mmu->object);
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun int
nvif_mmu_ctor(struct nvif_object * parent,const char * name,s32 oclass,struct nvif_mmu * mmu)37*4882a593Smuzhiyun nvif_mmu_ctor(struct nvif_object *parent, const char *name, s32 oclass,
38*4882a593Smuzhiyun struct nvif_mmu *mmu)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun static const struct nvif_mclass mems[] = {
41*4882a593Smuzhiyun { NVIF_CLASS_MEM_GF100, -1 },
42*4882a593Smuzhiyun { NVIF_CLASS_MEM_NV50 , -1 },
43*4882a593Smuzhiyun { NVIF_CLASS_MEM_NV04 , -1 },
44*4882a593Smuzhiyun {}
45*4882a593Smuzhiyun };
46*4882a593Smuzhiyun struct nvif_mmu_v0 args;
47*4882a593Smuzhiyun int ret, i;
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun args.version = 0;
50*4882a593Smuzhiyun mmu->heap = NULL;
51*4882a593Smuzhiyun mmu->type = NULL;
52*4882a593Smuzhiyun mmu->kind = NULL;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun ret = nvif_object_ctor(parent, name ? name : "nvifMmu", 0, oclass,
55*4882a593Smuzhiyun &args, sizeof(args), &mmu->object);
56*4882a593Smuzhiyun if (ret)
57*4882a593Smuzhiyun goto done;
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun mmu->dmabits = args.dmabits;
60*4882a593Smuzhiyun mmu->heap_nr = args.heap_nr;
61*4882a593Smuzhiyun mmu->type_nr = args.type_nr;
62*4882a593Smuzhiyun mmu->kind_nr = args.kind_nr;
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun ret = nvif_mclass(&mmu->object, mems);
65*4882a593Smuzhiyun if (ret < 0)
66*4882a593Smuzhiyun goto done;
67*4882a593Smuzhiyun mmu->mem = mems[ret].oclass;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun mmu->heap = kmalloc_array(mmu->heap_nr, sizeof(*mmu->heap),
70*4882a593Smuzhiyun GFP_KERNEL);
71*4882a593Smuzhiyun mmu->type = kmalloc_array(mmu->type_nr, sizeof(*mmu->type),
72*4882a593Smuzhiyun GFP_KERNEL);
73*4882a593Smuzhiyun if (ret = -ENOMEM, !mmu->heap || !mmu->type)
74*4882a593Smuzhiyun goto done;
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun mmu->kind = kmalloc_array(mmu->kind_nr, sizeof(*mmu->kind),
77*4882a593Smuzhiyun GFP_KERNEL);
78*4882a593Smuzhiyun if (!mmu->kind && mmu->kind_nr)
79*4882a593Smuzhiyun goto done;
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun for (i = 0; i < mmu->heap_nr; i++) {
82*4882a593Smuzhiyun struct nvif_mmu_heap_v0 args = { .index = i };
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_HEAP,
85*4882a593Smuzhiyun &args, sizeof(args));
86*4882a593Smuzhiyun if (ret)
87*4882a593Smuzhiyun goto done;
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun mmu->heap[i].size = args.size;
90*4882a593Smuzhiyun }
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun for (i = 0; i < mmu->type_nr; i++) {
93*4882a593Smuzhiyun struct nvif_mmu_type_v0 args = { .index = i };
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_TYPE,
96*4882a593Smuzhiyun &args, sizeof(args));
97*4882a593Smuzhiyun if (ret)
98*4882a593Smuzhiyun goto done;
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun mmu->type[i].type = 0;
101*4882a593Smuzhiyun if (args.vram) mmu->type[i].type |= NVIF_MEM_VRAM;
102*4882a593Smuzhiyun if (args.host) mmu->type[i].type |= NVIF_MEM_HOST;
103*4882a593Smuzhiyun if (args.comp) mmu->type[i].type |= NVIF_MEM_COMP;
104*4882a593Smuzhiyun if (args.disp) mmu->type[i].type |= NVIF_MEM_DISP;
105*4882a593Smuzhiyun if (args.kind ) mmu->type[i].type |= NVIF_MEM_KIND;
106*4882a593Smuzhiyun if (args.mappable) mmu->type[i].type |= NVIF_MEM_MAPPABLE;
107*4882a593Smuzhiyun if (args.coherent) mmu->type[i].type |= NVIF_MEM_COHERENT;
108*4882a593Smuzhiyun if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED;
109*4882a593Smuzhiyun mmu->type[i].heap = args.heap;
110*4882a593Smuzhiyun }
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun if (mmu->kind_nr) {
113*4882a593Smuzhiyun struct nvif_mmu_kind_v0 *kind;
114*4882a593Smuzhiyun size_t argc = struct_size(kind, data, mmu->kind_nr);
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun if (ret = -ENOMEM, !(kind = kmalloc(argc, GFP_KERNEL)))
117*4882a593Smuzhiyun goto done;
118*4882a593Smuzhiyun kind->version = 0;
119*4882a593Smuzhiyun kind->count = mmu->kind_nr;
120*4882a593Smuzhiyun
121*4882a593Smuzhiyun ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_KIND,
122*4882a593Smuzhiyun kind, argc);
123*4882a593Smuzhiyun if (ret == 0)
124*4882a593Smuzhiyun memcpy(mmu->kind, kind->data, kind->count);
125*4882a593Smuzhiyun mmu->kind_inv = kind->kind_inv;
126*4882a593Smuzhiyun kfree(kind);
127*4882a593Smuzhiyun }
128*4882a593Smuzhiyun
129*4882a593Smuzhiyun done:
130*4882a593Smuzhiyun if (ret)
131*4882a593Smuzhiyun nvif_mmu_dtor(mmu);
132*4882a593Smuzhiyun return ret;
133*4882a593Smuzhiyun }
134