1/*
2 * Copyright 2014 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs <bskeggs@redhat.com>
23 */
24
25/*******************************************************************************
26 * NVIF client driver - NVKM directly linked
27 ******************************************************************************/
28
29#include <core/client.h>
30#include <core/notify.h>
31#include <core/ioctl.h>
32
33#include <nvif/client.h>
34#include <nvif/driver.h>
35#include <nvif/notify.h>
36#include <nvif/event.h>
37#include <nvif/ioctl.h>
38
39#include "nouveau_drv.h"
40#include "nouveau_usif.h"
41
42static void
43nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size)
44{
45	iounmap(ptr);
46}
47
48static void __iomem *
49nvkm_client_map(void *priv, u64 handle, u32 size)
50{
51	return ioremap(handle, size);
52}
53
54static int
55nvkm_client_ioctl(void *priv, bool super, void *data, u32 size, void **hack)
56{
57	return nvkm_ioctl(priv, super, data, size, hack);
58}
59
60static int
61nvkm_client_resume(void *priv)
62{
63	struct nvkm_client *client = priv;
64	return nvkm_object_init(&client->object);
65}
66
67static int
68nvkm_client_suspend(void *priv)
69{
70	struct nvkm_client *client = priv;
71	return nvkm_object_fini(&client->object, true);
72}
73
74static int
75nvkm_client_ntfy(const void *header, u32 length, const void *data, u32 size)
76{
77	const union {
78		struct nvif_notify_req_v0 v0;
79	} *args = header;
80	u8 route;
81
82	if (length == sizeof(args->v0) && args->v0.version == 0) {
83		route = args->v0.route;
84	} else {
85		WARN_ON(1);
86		return NVKM_NOTIFY_DROP;
87	}
88
89	switch (route) {
90	case NVDRM_NOTIFY_NVIF:
91		return nvif_notify(header, length, data, size);
92	case NVDRM_NOTIFY_USIF:
93		return usif_notify(header, length, data, size);
94	default:
95		WARN_ON(1);
96		break;
97	}
98
99	return NVKM_NOTIFY_DROP;
100}
101
102static int
103nvkm_client_driver_init(const char *name, u64 device, const char *cfg,
104			const char *dbg, void **ppriv)
105{
106	return nvkm_client_new(name, device, cfg, dbg, nvkm_client_ntfy,
107			       (struct nvkm_client **)ppriv);
108}
109
110const struct nvif_driver
111nvif_driver_nvkm = {
112	.name = "nvkm",
113	.init = nvkm_client_driver_init,
114	.suspend = nvkm_client_suspend,
115	.resume = nvkm_client_resume,
116	.ioctl = nvkm_client_ioctl,
117	.map = nvkm_client_map,
118	.unmap = nvkm_client_unmap,
119	.keep = false,
120};
121