summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nouveau_nvif.c
blob: 1d49ebdfd5dc120cb18490c9dd24c7dfd5cb5863 (plain)
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
/*
 * Copyright 2014 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>
 */

/*******************************************************************************
 * NVIF client driver - NVKM directly linked
 ******************************************************************************/

#include <core/client.h>
#include <core/ioctl.h>

#include <nvif/client.h>
#include <nvif/driver.h>
#include <nvif/event.h>
#include <nvif/ioctl.h>

#include "nouveau_drv.h"
#include "nouveau_usif.h"

static void
nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size)
{
	iounmap(ptr);
}

static void __iomem *
nvkm_client_map(void *priv, u64 handle, u32 size)
{
	return ioremap(handle, size);
}

static int
nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack)
{
	return nvkm_ioctl(priv, data, size, hack);
}

static int
nvkm_client_resume(void *priv)
{
	struct nvkm_client *client = priv;
	return nvkm_object_init(&client->object);
}

static int
nvkm_client_suspend(void *priv)
{
	struct nvkm_client *client = priv;
	return nvkm_object_fini(&client->object, true);
}

static int
nvkm_client_event(u64 token, void *repv, u32 repc)
{
	struct nvif_object *object = (void *)(unsigned long)token;
	struct nvif_event *event = container_of(object, typeof(*event), object);

	if (event->func(event, repv, repc) == NVIF_EVENT_KEEP)
		return NVKM_EVENT_KEEP;

	return NVKM_EVENT_DROP;
}

static int
nvkm_client_driver_init(const char *name, u64 device, const char *cfg,
			const char *dbg, void **ppriv)
{
	return nvkm_client_new(name, device, cfg, dbg, nvkm_client_event,
			       (struct nvkm_client **)ppriv);
}

const struct nvif_driver
nvif_driver_nvkm = {
	.name = "nvkm",
	.init = nvkm_client_driver_init,
	.suspend = nvkm_client_suspend,
	.resume = nvkm_client_resume,
	.ioctl = nvkm_client_ioctl,
	.map = nvkm_client_map,
	.unmap = nvkm_client_unmap,
	.keep = false,
};