diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/subdev.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/core/subdev.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/subdev.c b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c new file mode 100644 index 000000000000..cb1c49c2e9d6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c @@ -0,0 +1,123 @@ +/* + * Copyright 2012 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 + */ + +#include <core/object.h> +#include <core/subdev.h> +#include <core/device.h> +#include <core/option.h> + +struct nouveau_subdev * +nouveau_subdev(void *obj, int idx) +{ + struct nouveau_object *object = nv_object(obj); + while (object && !nv_iclass(object, NV_SUBDEV_CLASS)) + object = object->parent; + if (object == NULL || nv_subidx(nv_subdev(object)) != idx) + object = nv_device(obj)->subdev[idx]; + return object ? nv_subdev(object) : NULL; +} + +void +nouveau_subdev_reset(struct nouveau_object *subdev) +{ + nv_trace(subdev, "resetting...\n"); + nv_ofuncs(subdev)->fini(subdev, false); + nv_debug(subdev, "reset\n"); +} + +int +nouveau_subdev_init(struct nouveau_subdev *subdev) +{ + int ret = nouveau_object_init(&subdev->object); + if (ret) + return ret; + + nouveau_subdev_reset(&subdev->object); + return 0; +} + +int +_nouveau_subdev_init(struct nouveau_object *object) +{ + return nouveau_subdev_init(nv_subdev(object)); +} + +int +nouveau_subdev_fini(struct nouveau_subdev *subdev, bool suspend) +{ + if (subdev->unit) { + nv_mask(subdev, 0x000200, subdev->unit, 0x00000000); + nv_mask(subdev, 0x000200, subdev->unit, subdev->unit); + } + + return nouveau_object_fini(&subdev->object, suspend); +} + +int +_nouveau_subdev_fini(struct nouveau_object *object, bool suspend) +{ + return nouveau_subdev_fini(nv_subdev(object), suspend); +} + +void +nouveau_subdev_destroy(struct nouveau_subdev *subdev) +{ + int subidx = nv_hclass(subdev) & 0xff; + nv_device(subdev)->subdev[subidx] = NULL; + nouveau_object_destroy(&subdev->object); +} + +void +_nouveau_subdev_dtor(struct nouveau_object *object) +{ + nouveau_subdev_destroy(nv_subdev(object)); +} + +int +nouveau_subdev_create_(struct nouveau_object *parent, + struct nouveau_object *engine, + struct nouveau_oclass *oclass, u32 pclass, + const char *subname, const char *sysname, + int size, void **pobject) +{ + struct nouveau_subdev *subdev; + int ret; + + ret = nouveau_object_create_(parent, engine, oclass, pclass | + NV_SUBDEV_CLASS, size, pobject); + subdev = *pobject; + if (ret) + return ret; + + __mutex_init(&subdev->mutex, subname, &oclass->lock_class_key); + subdev->name = subname; + + if (parent) { + struct nouveau_device *device = nv_device(parent); + subdev->debug = nouveau_dbgopt(device->dbgopt, subname); + subdev->mmio = nv_subdev(device)->mmio; + } + + return 0; +} |