1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
*/
#define nv50_instmem(p) container_of((p), struct nv50_instmem, base)
#include "priv.h"
#include <core/memory.h>
#include <subdev/bar.h>
#include <subdev/fb.h>
#include <subdev/mmu.h>
struct nv50_instmem {
struct nvkm_instmem base;
unsigned long lock_flags;
spinlock_t lock;
u64 addr;
};
/******************************************************************************
* instmem object implementation
*****************************************************************************/
#define nv50_instobj(p) container_of((p), struct nv50_instobj, memory)
struct nv50_instobj {
struct nvkm_memory memory;
struct nv50_instmem *imem;
struct nvkm_mem *mem;
struct nvkm_vma bar;
void *map;
};
static enum nvkm_memory_target
nv50_instobj_target(struct nvkm_memory *memory)
{
return NVKM_MEM_TARGET_VRAM;
}
static u64
nv50_instobj_addr(struct nvkm_memory *memory)
{
return nv50_instobj(memory)->mem->offset;
}
static u64
nv50_instobj_size(struct nvkm_memory *memory)
{
return (u64)nv50_instobj(memory)->mem->size << NVKM_RAM_MM_SHIFT;
}
static void
nv50_instobj_boot(struct nvkm_memory *memory, struct nvkm_vm *vm)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nvkm_subdev *subdev = &iobj->imem->base.subdev;
struct nvkm_device *device = subdev->device;
u64 size = nvkm_memory_size(memory);
void __iomem *map;
int ret;
iobj->map = ERR_PTR(-ENOMEM);
ret = nvkm_vm_get(vm, size, 12, NV_MEM_ACCESS_RW, &iobj->bar);
if (ret == 0) {
map = ioremap(nv_device_resource_start(device, 3) +
(u32)iobj->bar.offset, size);
if (map) {
nvkm_memory_map(memory, &iobj->bar, 0);
iobj->map = map;
} else {
nvkm_warn(subdev, "PRAMIN ioremap failed\n");
nvkm_vm_put(&iobj->bar);
}
} else {
nvkm_warn(subdev, "PRAMIN exhausted\n");
}
}
static void
nv50_instobj_release(struct nvkm_memory *memory)
{
struct nv50_instmem *imem = nv50_instobj(memory)->imem;
spin_unlock_irqrestore(&imem->lock, imem->lock_flags);
}
static void __iomem *
nv50_instobj_acquire(struct nvkm_memory *memory)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nv50_instmem *imem = iobj->imem;
struct nvkm_bar *bar = imem->base.subdev.device->bar;
struct nvkm_vm *vm;
unsigned long flags;
if (!iobj->map && (vm = nvkm_bar_kmap(bar)))
nvkm_memory_boot(memory, vm);
if (!IS_ERR_OR_NULL(iobj->map))
return iobj->map;
spin_lock_irqsave(&imem->lock, flags);
imem->lock_flags = flags;
return NULL;
}
static u32
nv50_instobj_rd32(struct nvkm_memory *memory, u64 offset)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nv50_instmem *imem = iobj->imem;
struct nvkm_device *device = imem->base.subdev.device;
u64 base = (iobj->mem->offset + offset) & 0xffffff00000ULL;
u64 addr = (iobj->mem->offset + offset) & 0x000000fffffULL;
u32 data;
if (unlikely(imem->addr != base)) {
nvkm_wr32(device, 0x001700, base >> 16);
imem->addr = base;
}
data = nvkm_rd32(device, 0x700000 + addr);
return data;
}
static void
nv50_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nv50_instmem *imem = iobj->imem;
struct nvkm_device *device = imem->base.subdev.device;
u64 base = (iobj->mem->offset + offset) & 0xffffff00000ULL;
u64 addr = (iobj->mem->offset + offset) & 0x000000fffffULL;
if (unlikely(imem->addr != base)) {
nvkm_wr32(device, 0x001700, base >> 16);
imem->addr = base;
}
nvkm_wr32(device, 0x700000 + addr, data);
}
static void
nv50_instobj_map(struct nvkm_memory *memory, struct nvkm_vma *vma, u64 offset)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
nvkm_vm_map_at(vma, offset, iobj->mem);
}
static void *
nv50_instobj_dtor(struct nvkm_memory *memory)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nvkm_ram *ram = iobj->imem->base.subdev.device->fb->ram;
if (!IS_ERR_OR_NULL(iobj->map)) {
nvkm_vm_put(&iobj->bar);
iounmap(iobj->map);
}
ram->func->put(ram, &iobj->mem);
return iobj;
}
static const struct nvkm_memory_func
nv50_instobj_func = {
.dtor = nv50_instobj_dtor,
.target = nv50_instobj_target,
.size = nv50_instobj_size,
.addr = nv50_instobj_addr,
.boot = nv50_instobj_boot,
.acquire = nv50_instobj_acquire,
.release = nv50_instobj_release,
.rd32 = nv50_instobj_rd32,
.wr32 = nv50_instobj_wr32,
.map = nv50_instobj_map,
};
static int
nv50_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero,
struct nvkm_memory **pmemory)
{
struct nv50_instmem *imem = nv50_instmem(base);
struct nv50_instobj *iobj;
struct nvkm_ram *ram = imem->base.subdev.device->fb->ram;
int ret;
if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL)))
return -ENOMEM;
*pmemory = &iobj->memory;
nvkm_memory_ctor(&nv50_instobj_func, &iobj->memory);
iobj->imem = imem;
size = max((size + 4095) & ~4095, (u32)4096);
align = max((align + 4095) & ~4095, (u32)4096);
ret = ram->func->get(ram, size, align, 0, 0x800, &iobj->mem);
if (ret)
return ret;
iobj->mem->page_shift = 12;
return 0;
}
/******************************************************************************
* instmem subdev implementation
*****************************************************************************/
static void
nv50_instmem_fini(struct nvkm_instmem *base)
{
nv50_instmem(base)->addr = ~0ULL;
}
static const struct nvkm_instmem_func
nv50_instmem = {
.fini = nv50_instmem_fini,
.memory_new = nv50_instobj_new,
.persistent = false,
.zero = false,
};
int
nv50_instmem_new(struct nvkm_device *device, int index,
struct nvkm_instmem **pimem)
{
struct nv50_instmem *imem;
if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL)))
return -ENOMEM;
nvkm_instmem_ctor(&nv50_instmem, device, index, &imem->base);
spin_lock_init(&imem->lock);
*pimem = &imem->base;
return 0;
}
|
