5113f6f70
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kernel add
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/*
* Copyright 2013 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 <nvif/client.h>
#include <nvif/driver.h>
#include <nvif/ioctl.h>
int
nvif_client_ioctl(struct nvif_client *client, void *data, u32 size)
{
return client->driver->ioctl(client->object.priv, client->super, data, size, NULL);
}
int
nvif_client_suspend(struct nvif_client *client)
{
return client->driver->suspend(client->object.priv);
}
int
nvif_client_resume(struct nvif_client *client)
{
return client->driver->resume(client->object.priv);
}
void
nvif_client_fini(struct nvif_client *client)
{
if (client->driver) {
client->driver->fini(client->object.priv);
client->driver = NULL;
client->object.client = NULL;
nvif_object_fini(&client->object);
}
}
const struct nvif_driver *
nvif_drivers[] = {
#ifdef __KERNEL__
&nvif_driver_nvkm,
#else
&nvif_driver_drm,
&nvif_driver_lib,
&nvif_driver_null,
#endif
NULL
};
int
nvif_client_init(const char *driver, const char *name, u64 device,
const char *cfg, const char *dbg, struct nvif_client *client)
{
struct {
struct nvif_ioctl_v0 ioctl;
struct nvif_ioctl_nop_v0 nop;
} args = {};
int ret, i;
ret = nvif_object_init(NULL, 0, 0, NULL, 0, &client->object);
if (ret)
return ret;
client->object.client = client;
client->object.handle = ~0;
client->route = NVIF_IOCTL_V0_ROUTE_NVIF;
client->super = true;
for (i = 0, ret = -EINVAL; (client->driver = nvif_drivers[i]); i++) {
if (!driver || !strcmp(client->driver->name, driver)) {
ret = client->driver->init(name, device, cfg, dbg,
&client->object.priv);
if (!ret || driver)
break;
}
}
if (ret == 0) {
ret = nvif_client_ioctl(client, &args, sizeof(args));
client->version = args.nop.version;
}
if (ret)
nvif_client_fini(client);
return ret;
}
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