mirror of https://gitee.com/openkylin/linux.git
107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/*
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* Copyright 2013 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs <bskeggs@redhat.com>
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*/
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#include <nvif/client.h>
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#include <nvif/driver.h>
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#include <nvif/ioctl.h>
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int
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nvif_client_ioctl(struct nvif_client *client, void *data, u32 size)
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{
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return client->driver->ioctl(client->object.priv, client->super, data, size, NULL);
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}
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int
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nvif_client_suspend(struct nvif_client *client)
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{
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return client->driver->suspend(client->object.priv);
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}
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int
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nvif_client_resume(struct nvif_client *client)
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{
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return client->driver->resume(client->object.priv);
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}
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void
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nvif_client_fini(struct nvif_client *client)
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{
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if (client->driver) {
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client->driver->fini(client->object.priv);
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client->driver = NULL;
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client->object.client = NULL;
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nvif_object_fini(&client->object);
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}
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}
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const struct nvif_driver *
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nvif_drivers[] = {
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#ifdef __KERNEL__
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&nvif_driver_nvkm,
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#else
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&nvif_driver_drm,
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&nvif_driver_lib,
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&nvif_driver_null,
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#endif
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NULL
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};
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int
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nvif_client_init(const char *driver, const char *name, u64 device,
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const char *cfg, const char *dbg, struct nvif_client *client)
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{
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struct {
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struct nvif_ioctl_v0 ioctl;
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struct nvif_ioctl_nop_v0 nop;
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} args = {};
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int ret, i;
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ret = nvif_object_init(NULL, 0, 0, NULL, 0, &client->object);
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if (ret)
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return ret;
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client->object.client = client;
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client->object.handle = ~0;
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client->route = NVIF_IOCTL_V0_ROUTE_NVIF;
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client->super = true;
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for (i = 0, ret = -EINVAL; (client->driver = nvif_drivers[i]); i++) {
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if (!driver || !strcmp(client->driver->name, driver)) {
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ret = client->driver->init(name, device, cfg, dbg,
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&client->object.priv);
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if (!ret || driver)
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break;
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}
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}
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if (ret == 0) {
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ret = nvif_client_ioctl(client, &args, sizeof(args));
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client->version = args.nop.version;
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}
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if (ret)
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nvif_client_fini(client);
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return ret;
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}
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