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
|
/*
* Copyright 2018 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.
*/
#include "priv.h"
#include <core/memory.h>
#include <core/notify.h>
static void
nvkm_fault_ntfy_fini(struct nvkm_event *event, int type, int index)
{
struct nvkm_fault *fault = container_of(event, typeof(*fault), event);
fault->func->buffer.intr(fault->buffer[index], false);
}
static void
nvkm_fault_ntfy_init(struct nvkm_event *event, int type, int index)
{
struct nvkm_fault *fault = container_of(event, typeof(*fault), event);
fault->func->buffer.intr(fault->buffer[index], true);
}
static int
nvkm_fault_ntfy_ctor(struct nvkm_object *object, void *argv, u32 argc,
struct nvkm_notify *notify)
{
struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object);
if (argc == 0) {
notify->size = 0;
notify->types = 1;
notify->index = buffer->id;
return 0;
}
return -ENOSYS;
}
static const struct nvkm_event_func
nvkm_fault_ntfy = {
.ctor = nvkm_fault_ntfy_ctor,
.init = nvkm_fault_ntfy_init,
.fini = nvkm_fault_ntfy_fini,
};
static void
nvkm_fault_intr(struct nvkm_subdev *subdev)
{
struct nvkm_fault *fault = nvkm_fault(subdev);
return fault->func->intr(fault);
}
static int
nvkm_fault_fini(struct nvkm_subdev *subdev, bool suspend)
{
struct nvkm_fault *fault = nvkm_fault(subdev);
if (fault->func->fini)
fault->func->fini(fault);
return 0;
}
static int
nvkm_fault_init(struct nvkm_subdev *subdev)
{
struct nvkm_fault *fault = nvkm_fault(subdev);
if (fault->func->init)
fault->func->init(fault);
return 0;
}
static int
nvkm_fault_oneinit_buffer(struct nvkm_fault *fault, int id)
{
struct nvkm_subdev *subdev = &fault->subdev;
struct nvkm_device *device = subdev->device;
struct nvkm_fault_buffer *buffer;
int ret;
if (!(buffer = kzalloc(sizeof(*buffer), GFP_KERNEL)))
return -ENOMEM;
buffer->fault = fault;
buffer->id = id;
fault->func->buffer.info(buffer);
fault->buffer[id] = buffer;
nvkm_debug(subdev, "buffer %d: %d entries\n", id, buffer->entries);
ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, buffer->entries *
fault->func->buffer.entry_size, 0x1000, true,
&buffer->mem);
if (ret)
return ret;
/* Pin fault buffer in BAR2. */
buffer->addr = fault->func->buffer.pin(buffer);
if (buffer->addr == ~0ULL)
return -EFAULT;
return 0;
}
static int
nvkm_fault_oneinit(struct nvkm_subdev *subdev)
{
struct nvkm_fault *fault = nvkm_fault(subdev);
int ret, i;
for (i = 0; i < ARRAY_SIZE(fault->buffer); i++) {
if (i < fault->func->buffer.nr) {
ret = nvkm_fault_oneinit_buffer(fault, i);
if (ret)
return ret;
fault->buffer_nr = i + 1;
}
}
ret = nvkm_event_init(&nvkm_fault_ntfy, 1, fault->buffer_nr,
&fault->event);
if (ret)
return ret;
if (fault->func->oneinit)
ret = fault->func->oneinit(fault);
return ret;
}
static void *
nvkm_fault_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_fault *fault = nvkm_fault(subdev);
int i;
nvkm_notify_fini(&fault->nrpfb);
nvkm_event_fini(&fault->event);
for (i = 0; i < fault->buffer_nr; i++) {
if (fault->buffer[i]) {
nvkm_memory_unref(&fault->buffer[i]->mem);
kfree(fault->buffer[i]);
}
}
return fault;
}
static const struct nvkm_subdev_func
nvkm_fault = {
.dtor = nvkm_fault_dtor,
.oneinit = nvkm_fault_oneinit,
.init = nvkm_fault_init,
.fini = nvkm_fault_fini,
.intr = nvkm_fault_intr,
};
int
nvkm_fault_new_(const struct nvkm_fault_func *func, struct nvkm_device *device,
int index, struct nvkm_fault **pfault)
{
struct nvkm_fault *fault;
if (!(fault = *pfault = kzalloc(sizeof(*fault), GFP_KERNEL)))
return -ENOMEM;
nvkm_subdev_ctor(&nvkm_fault, device, index, &fault->subdev);
fault->func = func;
fault->user.ctor = nvkm_ufault_new;
fault->user.base = func->user.base;
return 0;
}
|
