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/ioctl.h>
31
32 #include <nvif/client.h>
33 #include <nvif/driver.h>
34 #include <nvif/event.h>
35 #include <nvif/ioctl.h>
36
37 #include "nouveau_drv.h"
38 #include "nouveau_usif.h"
39
40 static void
nvkm_client_unmap(void * priv,void __iomem * ptr,u32 size)41 nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size)
42 {
43 iounmap(ptr);
44 }
45
46 static void __iomem *
nvkm_client_map(void * priv,u64 handle,u32 size)47 nvkm_client_map(void *priv, u64 handle, u32 size)
48 {
49 return ioremap(handle, size);
50 }
51
52 static int
nvkm_client_ioctl(void * priv,void * data,u32 size,void ** hack)53 nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack)
54 {
55 return nvkm_ioctl(priv, data, size, hack);
56 }
57
58 static int
nvkm_client_resume(void * priv)59 nvkm_client_resume(void *priv)
60 {
61 struct nvkm_client *client = priv;
62 return nvkm_object_init(&client->object);
63 }
64
65 static int
nvkm_client_suspend(void * priv)66 nvkm_client_suspend(void *priv)
67 {
68 struct nvkm_client *client = priv;
69 return nvkm_object_fini(&client->object, true);
70 }
71
72 static int
nvkm_client_event(u64 token,void * repv,u32 repc)73 nvkm_client_event(u64 token, void *repv, u32 repc)
74 {
75 struct nvif_object *object = (void *)(unsigned long)token;
76 struct nvif_event *event = container_of(object, typeof(*event), object);
77
78 if (event->func(event, repv, repc) == NVIF_EVENT_KEEP)
79 return NVKM_EVENT_KEEP;
80
81 return NVKM_EVENT_DROP;
82 }
83
84 static int
nvkm_client_driver_init(const char * name,u64 device,const char * cfg,const char * dbg,void ** ppriv)85 nvkm_client_driver_init(const char *name, u64 device, const char *cfg,
86 const char *dbg, void **ppriv)
87 {
88 return nvkm_client_new(name, device, cfg, dbg, nvkm_client_event,
89 (struct nvkm_client **)ppriv);
90 }
91
92 const struct nvif_driver
93 nvif_driver_nvkm = {
94 .name = "nvkm",
95 .init = nvkm_client_driver_init,
96 .suspend = nvkm_client_suspend,
97 .resume = nvkm_client_resume,
98 .ioctl = nvkm_client_ioctl,
99 .map = nvkm_client_map,
100 .unmap = nvkm_client_unmap,
101 .keep = false,
102 };
103