1/* $NetBSD: nouveau_nvif_client.c,v 1.3 2021/12/18 23:45:33 riastradh Exp $ */ 2 3/* 4 * Copyright 2013 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Ben Skeggs <bskeggs@redhat.com> 25 */ 26 27#include <sys/cdefs.h> 28__KERNEL_RCSID(0, "$NetBSD: nouveau_nvif_client.c,v 1.3 2021/12/18 23:45:33 riastradh Exp $"); 29 30#include <nvif/client.h> 31#include <nvif/driver.h> 32#include <nvif/ioctl.h> 33 34#include <nvif/class.h> 35#include <nvif/if0000.h> 36 37int 38nvif_client_ioctl(struct nvif_client *client, void *data, u32 size) 39{ 40 return client->driver->ioctl(client->object.priv, client->super, data, size, NULL); 41} 42 43int 44nvif_client_suspend(struct nvif_client *client) 45{ 46 return client->driver->suspend(client->object.priv); 47} 48 49int 50nvif_client_resume(struct nvif_client *client) 51{ 52 return client->driver->resume(client->object.priv); 53} 54 55void 56nvif_client_fini(struct nvif_client *client) 57{ 58 nvif_object_fini(&client->object); 59 if (client->driver) { 60 if (client->driver->fini) 61 client->driver->fini(client->object.priv); 62 client->driver = NULL; 63 } 64} 65 66int 67nvif_client_init(struct nvif_client *parent, const char *name, u64 device, 68 struct nvif_client *client) 69{ 70 struct nvif_client_v0 args = { .device = device }; 71 struct { 72 struct nvif_ioctl_v0 ioctl; 73 struct nvif_ioctl_nop_v0 nop; 74 } nop = {}; 75 int ret; 76 77 strncpy(args.name, name, sizeof(args.name)); 78 ret = nvif_object_init(parent != client ? &parent->object : NULL, 79 0, NVIF_CLASS_CLIENT, &args, sizeof(args), 80 &client->object); 81 if (ret) 82 return ret; 83 84 client->object.client = client; 85 client->object.handle = ~0; 86 client->route = NVIF_IOCTL_V0_ROUTE_NVIF; 87 client->super = true; 88 client->driver = parent->driver; 89 90 if (ret == 0) { 91 ret = nvif_client_ioctl(client, &nop, sizeof(nop)); 92 client->version = nop.nop.version; 93 } 94 95 if (ret) 96 nvif_client_fini(client); 97 return ret; 98} 99