| 1 | /* $NetBSD: nouveau_core_engine.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright 2012 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 |
| 25 | */ |
| 26 | |
| 27 | #include <sys/cdefs.h> |
| 28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_core_engine.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $" ); |
| 29 | |
| 30 | #include <core/device.h> |
| 31 | #include <core/engine.h> |
| 32 | #include <core/option.h> |
| 33 | |
| 34 | int |
| 35 | nouveau_engine_create_(struct nouveau_object *parent, |
| 36 | struct nouveau_object *engobj, |
| 37 | struct nouveau_oclass *oclass, bool enable, |
| 38 | const char *iname, const char *fname, |
| 39 | int length, void **pobject) |
| 40 | { |
| 41 | struct nouveau_engine *engine; |
| 42 | int ret; |
| 43 | |
| 44 | ret = nouveau_subdev_create_(parent, engobj, oclass, NV_ENGINE_CLASS, |
| 45 | iname, fname, length, pobject); |
| 46 | engine = *pobject; |
| 47 | if (ret) |
| 48 | return ret; |
| 49 | |
| 50 | if (parent) { |
| 51 | struct nouveau_device *device = nv_device(parent); |
| 52 | int engidx = nv_engidx(nv_object(engine)); |
| 53 | |
| 54 | if (device->disable_mask & (1ULL << engidx)) { |
| 55 | if (!nouveau_boolopt(device->cfgopt, iname, false)) { |
| 56 | nv_debug(engine, "engine disabled by hw/fw\n" ); |
| 57 | return -ENODEV; |
| 58 | } |
| 59 | |
| 60 | nv_warn(engine, "ignoring hw/fw engine disable\n" ); |
| 61 | } |
| 62 | |
| 63 | if (!nouveau_boolopt(device->cfgopt, iname, enable)) { |
| 64 | if (!enable) |
| 65 | nv_warn(engine, "disabled, %s=1 to enable\n" , iname); |
| 66 | return -ENODEV; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | INIT_LIST_HEAD(&engine->contexts); |
| 71 | spin_lock_init(&engine->lock); |
| 72 | return 0; |
| 73 | } |
| 74 | |