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
|
/*
* Copyright 2015 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 <bskeggs@redhat.com>
*/
#include <core/pci.h>
#include "priv.h"
static struct nvkm_device_pci *
nvkm_device_pci(struct nvkm_device *device)
{
return container_of(device, struct nvkm_device_pci, device);
}
static void
nvkm_device_pci_fini(struct nvkm_device *device, bool suspend)
{
struct nvkm_device_pci *pdev = nvkm_device_pci(device);
if (suspend) {
pci_disable_device(pdev->pdev);
pdev->suspend = true;
}
}
static int
nvkm_device_pci_preinit(struct nvkm_device *device)
{
struct nvkm_device_pci *pdev = nvkm_device_pci(device);
if (pdev->suspend) {
int ret = pci_enable_device(pdev->pdev);
if (ret)
return ret;
pci_set_master(pdev->pdev);
pdev->suspend = false;
}
return 0;
}
static void *
nvkm_device_pci_dtor(struct nvkm_device *device)
{
struct nvkm_device_pci *pdev = nvkm_device_pci(device);
pci_disable_device(pdev->pdev);
return pdev;
}
static const struct nvkm_device_func
nvkm_device_pci_func = {
.pci = nvkm_device_pci,
.dtor = nvkm_device_pci_dtor,
.preinit = nvkm_device_pci_preinit,
.fini = nvkm_device_pci_fini,
};
int
nvkm_device_pci_new(struct pci_dev *pci_dev, const char *cfg, const char *dbg,
bool detect, bool mmio, u64 subdev_mask,
struct nvkm_device **pdevice)
{
struct nvkm_device_pci *pdev;
int ret;
ret = pci_enable_device(pci_dev);
if (ret)
return ret;
if (!(pdev = kzalloc(sizeof(*pdev), GFP_KERNEL))) {
pci_disable_device(pci_dev);
return -ENOMEM;
}
*pdevice = &pdev->device;
pdev->pdev = pci_dev;
return nvkm_device_ctor(&nvkm_device_pci_func, NULL,
pci_dev, NVKM_BUS_PCI,
(u64)pci_domain_nr(pci_dev->bus) << 32 |
pci_dev->bus->number << 16 |
PCI_SLOT(pci_dev->devfn) << 8 |
PCI_FUNC(pci_dev->devfn), NULL,
cfg, dbg, detect, mmio, subdev_mask,
&pdev->device);
}
|
