mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 08:58:07 +00:00
136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
|
|
* 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/notify.h>
|
|
#include <core/ioctl.h>
|
|
|
|
#include <nvif/client.h>
|
|
#include <nvif/driver.h>
|
|
#include <nvif/notify.h>
|
|
#include <nvif/event.h>
|
|
#include <nvif/ioctl.h>
|
|
|
|
#include "nouveau_drm.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, bool super, void *data, u32 size, void **hack)
|
|
{
|
|
return nvkm_ioctl(priv, super, data, size, hack);
|
|
}
|
|
|
|
static int
|
|
nvkm_client_resume(void *priv)
|
|
{
|
|
return nouveau_client_init(priv);
|
|
}
|
|
|
|
static int
|
|
nvkm_client_suspend(void *priv)
|
|
{
|
|
return nouveau_client_fini(priv, true);
|
|
}
|
|
|
|
static void
|
|
nvkm_client_fini(void *priv)
|
|
{
|
|
struct nouveau_object *client = priv;
|
|
nouveau_client_fini(nv_client(client), false);
|
|
atomic_set(&client->refcount, 1);
|
|
nouveau_object_ref(NULL, &client);
|
|
}
|
|
|
|
static int
|
|
nvkm_client_ntfy(const void *header, u32 length, const void *data, u32 size)
|
|
{
|
|
const union {
|
|
struct nvif_notify_req_v0 v0;
|
|
} *args = header;
|
|
u8 route;
|
|
|
|
if (length == sizeof(args->v0) && args->v0.version == 0) {
|
|
route = args->v0.route;
|
|
} else {
|
|
WARN_ON(1);
|
|
return NVKM_NOTIFY_DROP;
|
|
}
|
|
|
|
switch (route) {
|
|
case NVDRM_NOTIFY_NVIF:
|
|
return nvif_notify(header, length, data, size);
|
|
case NVDRM_NOTIFY_USIF:
|
|
return usif_notify(header, length, data, size);
|
|
default:
|
|
WARN_ON(1);
|
|
break;
|
|
}
|
|
|
|
return NVKM_NOTIFY_DROP;
|
|
}
|
|
|
|
static int
|
|
nvkm_client_init(const char *name, u64 device, const char *cfg,
|
|
const char *dbg, void **ppriv)
|
|
{
|
|
struct nouveau_client *client;
|
|
int ret;
|
|
|
|
ret = nouveau_client_create(name, device, cfg, dbg, &client);
|
|
*ppriv = client;
|
|
if (ret)
|
|
return ret;
|
|
|
|
client->ntfy = nvkm_client_ntfy;
|
|
return 0;
|
|
}
|
|
|
|
const struct nvif_driver
|
|
nvif_driver_nvkm = {
|
|
.name = "nvkm",
|
|
.init = nvkm_client_init,
|
|
.fini = nvkm_client_fini,
|
|
.suspend = nvkm_client_suspend,
|
|
.resume = nvkm_client_resume,
|
|
.ioctl = nvkm_client_ioctl,
|
|
.map = nvkm_client_map,
|
|
.unmap = nvkm_client_unmap,
|
|
.keep = false,
|
|
};
|