[deliverable/linux.git] / drivers / gpu / drm / nouveau / nvkm / core / object.c

/*
 * 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/client.h>
#include <core/engine.h>

int
nvkm_object_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
	if (likely(object->func->mthd))
		return object->func->mthd(object, mthd, data, size);
	return -ENODEV;
}

int
nvkm_object_ntfy(struct nvkm_object *object, u32 mthd,
		 struct nvkm_event **pevent)
{
	if (likely(object->func->ntfy))
		return object->func->ntfy(object, mthd, pevent);
	return -ENODEV;
}

int
nvkm_object_map(struct nvkm_object *object, u64 *addr, u32 *size)
{
	if (likely(object->func->map))
		return object->func->map(object, addr, size);
	return -ENODEV;
}

int
nvkm_object_rd08(struct nvkm_object *object, u64 addr, u8 *data)
{
	if (likely(object->func->rd08))
		return object->func->rd08(object, addr, data);
	return -ENODEV;
}

int
nvkm_object_rd16(struct nvkm_object *object, u64 addr, u16 *data)
{
	if (likely(object->func->rd16))
		return object->func->rd16(object, addr, data);
	return -ENODEV;
}

int
nvkm_object_rd32(struct nvkm_object *object, u64 addr, u32 *data)
{
	if (likely(object->func->rd32))
		return object->func->rd32(object, addr, data);
	return -ENODEV;
}

int
nvkm_object_wr08(struct nvkm_object *object, u64 addr, u8 data)
{
	if (likely(object->func->wr08))
		return object->func->wr08(object, addr, data);
	return -ENODEV;
}

int
nvkm_object_wr16(struct nvkm_object *object, u64 addr, u16 data)
{
	if (likely(object->func->wr16))
		return object->func->wr16(object, addr, data);
	return -ENODEV;
}

int
nvkm_object_wr32(struct nvkm_object *object, u64 addr, u32 data)
{
	if (likely(object->func->wr32))
		return object->func->wr32(object, addr, data);
	return -ENODEV;
}

int
nvkm_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *gpuobj,
		 int align, struct nvkm_gpuobj **pgpuobj)
{
	if (object->func->bind)
		return object->func->bind(object, gpuobj, align, pgpuobj);
	return -ENODEV;
}

int
nvkm_object_fini(struct nvkm_object *object, bool suspend)
{
	const char *action = suspend ? "suspend" : "fini";
	struct nvkm_object *child;
	s64 time;
	int ret;

	nvif_debug(object, "%s children...\n", action);
	time = ktime_to_us(ktime_get());
	list_for_each_entry(child, &object->tree, head) {
		ret = nvkm_object_fini(child, suspend);
		if (ret && suspend)
			goto fail_child;
	}

	nvif_debug(object, "%s running...\n", action);
	if (object->func->fini) {
		ret = object->func->fini(object, suspend);
		if (ret) {
			nvif_error(object, "%s failed with %d\n", action, ret);
			if (suspend)
				goto fail;
		}
	}

	time = ktime_to_us(ktime_get()) - time;
	nvif_debug(object, "%s completed in %lldus\n", action, time);
	return 0;

fail:
	if (object->func->init) {
		int rret = object->func->init(object);
		if (rret)
			nvif_fatal(object, "failed to restart, %d\n", rret);
	}
fail_child:
	list_for_each_entry_continue_reverse(child, &object->tree, head) {
		nvkm_object_init(child);
	}
	return ret;
}

int
nvkm_object_init(struct nvkm_object *object)
{
	struct nvkm_object *child;
	s64 time;
	int ret;

	nvif_debug(object, "init running...\n");
	time = ktime_to_us(ktime_get());
	if (object->func->init) {
		ret = object->func->init(object);
		if (ret)
			goto fail;
	}

	nvif_debug(object, "init children...\n");
	list_for_each_entry(child, &object->tree, head) {
		ret = nvkm_object_init(child);
		if (ret)
			goto fail_child;
	}

	time = ktime_to_us(ktime_get()) - time;
	nvif_debug(object, "init completed in %lldus\n", time);
	return 0;

fail_child:
	list_for_each_entry_continue_reverse(child, &object->tree, head)
		nvkm_object_fini(child, false);
fail:
	nvif_error(object, "init failed with %d\n", ret);
	if (object->func->fini)
		object->func->fini(object, false);
	return ret;
}

void *
nvkm_object_dtor(struct nvkm_object *object)
{
	struct nvkm_object *child, *ctemp;
	void *data = object;
	s64 time;

	nvif_debug(object, "destroy children...\n");
	time = ktime_to_us(ktime_get());
	list_for_each_entry_safe(child, ctemp, &object->tree, head) {
		nvkm_object_del(&child);
	}

	nvif_debug(object, "destroy running...\n");
	if (object->func->dtor)
		data = object->func->dtor(object);
	nvkm_engine_unref(&object->engine);
	time = ktime_to_us(ktime_get()) - time;
	nvif_debug(object, "destroy completed in %lldus...\n", time);
	return data;
}

void
nvkm_object_del(struct nvkm_object **pobject)
{
	struct nvkm_object *object = *pobject;
	if (object && !WARN_ON(!object->func)) {
		*pobject = nvkm_object_dtor(object);
		nvkm_client_remove(object->client, object);
		list_del(&object->head);
		kfree(*pobject);
		*pobject = NULL;
	}
}

void
nvkm_object_ctor(const struct nvkm_object_func *func,
		 const struct nvkm_oclass *oclass, struct nvkm_object *object)
{
	object->func = func;
	object->client = oclass->client;
	object->engine = nvkm_engine_ref(oclass->engine);
	object->oclass = oclass->base.oclass;
	object->handle = oclass->handle;
	INIT_LIST_HEAD(&object->head);
	INIT_LIST_HEAD(&object->tree);
	RB_CLEAR_NODE(&object->node);
	WARN_ON(oclass->engine && !object->engine);
}

int
nvkm_object_new_(const struct nvkm_object_func *func,
		 const struct nvkm_oclass *oclass, void *data, u32 size,
		 struct nvkm_object **pobject)
{
	if (size == 0) {
		if (!(*pobject = kzalloc(sizeof(**pobject), GFP_KERNEL)))
			return -ENOMEM;
		nvkm_object_ctor(func, oclass, *pobject);
		return 0;
	}
	return -ENOSYS;
}

static const struct nvkm_object_func
nvkm_object_func = {
};

int
nvkm_object_new(const struct nvkm_oclass *oclass, void *data, u32 size,
		struct nvkm_object **pobject)
{
	const struct nvkm_object_func *func =
		oclass->base.func ? oclass->base.func : &nvkm_object_func;
	return nvkm_object_new_(func, oclass, data, size, pobject);
}
Commit	Line	Data
9274f4a9 BS	1	/*
	2	* Copyright 2012 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Ben Skeggs
	23	*/
9274f4a9	24	#include <core/object.h>
fbd58ebd	25	#include <core/client.h>
9274f4a9 BS	26	#include <core/engine.h>
9274f4a9 BS	27
cbea21e2 BS	28	int
	29	nvkm_object_mthd(struct nvkm_object object, u32 mthd, void data, u32 size)
	30	{
cbea21e2 BS	31	if (likely(object->func->mthd))
	32	return object->func->mthd(object, mthd, data, size);
	33	return -ENODEV;
	34	}
	35
	36	int
	37	nvkm_object_ntfy(struct nvkm_object *object, u32 mthd,
	38	struct nvkm_event **pevent)
	39	{
cbea21e2 BS	40	if (likely(object->func->ntfy))
	41	return object->func->ntfy(object, mthd, pevent);
	42	return -ENODEV;
	43	}
	44
	45	int
	46	nvkm_object_map(struct nvkm_object object, u64 addr, u32 *size)
	47	{
cbea21e2 BS	48	if (likely(object->func->map))
	49	return object->func->map(object, addr, size);
	50	return -ENODEV;
	51	}
	52
cfdc4c44 BS	53	int
	54	nvkm_object_rd08(struct nvkm_object object, u64 addr, u8 data)
	55	{
cbea21e2 BS	56	if (likely(object->func->rd08))
cbea21e2 BS	57	return object->func->rd08(object, addr, data);
cfdc4c44 BS	58	return -ENODEV;
	59	}
	60
	61	int
	62	nvkm_object_rd16(struct nvkm_object object, u64 addr, u16 data)
	63	{
cbea21e2 BS	64	if (likely(object->func->rd16))
cbea21e2 BS	65	return object->func->rd16(object, addr, data);
cfdc4c44 BS	66	return -ENODEV;
	67	}
	68
	69	int
	70	nvkm_object_rd32(struct nvkm_object object, u64 addr, u32 data)
	71	{
cbea21e2 BS	72	if (likely(object->func->rd32))
cbea21e2 BS	73	return object->func->rd32(object, addr, data);
cfdc4c44 BS	74	return -ENODEV;
	75	}
	76
	77	int
	78	nvkm_object_wr08(struct nvkm_object *object, u64 addr, u8 data)
	79	{
cbea21e2 BS	80	if (likely(object->func->wr08))
cbea21e2 BS	81	return object->func->wr08(object, addr, data);
cfdc4c44 BS	82	return -ENODEV;
	83	}
	84
	85	int
	86	nvkm_object_wr16(struct nvkm_object *object, u64 addr, u16 data)
	87	{
cbea21e2 BS	88	if (likely(object->func->wr16))
cbea21e2 BS	89	return object->func->wr16(object, addr, data);
cfdc4c44 BS	90	return -ENODEV;
	91	}
	92
	93	int
	94	nvkm_object_wr32(struct nvkm_object *object, u64 addr, u32 data)
	95	{
cbea21e2 BS	96	if (likely(object->func->wr32))
cbea21e2 BS	97	return object->func->wr32(object, addr, data);
cfdc4c44 BS	98	return -ENODEV;
	99	}
	100
cbea21e2 BS	101	int
	102	nvkm_object_bind(struct nvkm_object object, struct nvkm_gpuobj gpuobj,
	103	int align, struct nvkm_gpuobj **pgpuobj)
	104	{
cbea21e2 BS	105	if (object->func->bind)
	106	return object->func->bind(object, gpuobj, align, pgpuobj);
	107	return -ENODEV;
	108	}
	109
	110	int
	111	nvkm_object_fini(struct nvkm_object *object, bool suspend)
	112	{
fbd58ebd BS	113	const char *action = suspend ? "suspend" : "fini";
	114	struct nvkm_object *child;
	115	s64 time;
	116	int ret;
	117
	118	nvif_debug(object, "%s children...\n", action);
	119	time = ktime_to_us(ktime_get());
	120	list_for_each_entry(child, &object->tree, head) {
	121	ret = nvkm_object_fini(child, suspend);
	122	if (ret && suspend)
	123	goto fail_child;
	124	}
	125
	126	nvif_debug(object, "%s running...\n", action);
	127	if (object->func->fini) {
	128	ret = object->func->fini(object, suspend);
	129	if (ret) {
	130	nvif_error(object, "%s failed with %d\n", action, ret);
	131	if (suspend)
	132	goto fail;
	133	}
	134	}
	135
	136	time = ktime_to_us(ktime_get()) - time;
	137	nvif_debug(object, "%s completed in %lldus\n", action, time);
cbea21e2	138	return 0;
fbd58ebd BS	139
	140	fail:
	141	if (object->func->init) {
	142	int rret = object->func->init(object);
	143	if (rret)
	144	nvif_fatal(object, "failed to restart, %d\n", rret);
	145	}
	146	fail_child:
	147	list_for_each_entry_continue_reverse(child, &object->tree, head) {
	148	nvkm_object_init(child);
	149	}
	150	return ret;
cbea21e2 BS	151	}
	152
	153	int
	154	nvkm_object_init(struct nvkm_object *object)
	155	{
fbd58ebd BS	156	struct nvkm_object *child;
	157	s64 time;
	158	int ret;
	159
	160	nvif_debug(object, "init running...\n");
	161	time = ktime_to_us(ktime_get());
	162	if (object->func->init) {
	163	ret = object->func->init(object);
	164	if (ret)
	165	goto fail;
	166	}
	167
	168	nvif_debug(object, "init children...\n");
	169	list_for_each_entry(child, &object->tree, head) {
	170	ret = nvkm_object_init(child);
	171	if (ret)
	172	goto fail_child;
	173	}
	174
	175	time = ktime_to_us(ktime_get()) - time;
	176	nvif_debug(object, "init completed in %lldus\n", time);
cbea21e2	177	return 0;
fbd58ebd BS	178
	179	fail_child:
	180	list_for_each_entry_continue_reverse(child, &object->tree, head)
	181	nvkm_object_fini(child, false);
	182	fail:
	183	nvif_error(object, "init failed with %d\n", ret);
	184	if (object->func->fini)
	185	object->func->fini(object, false);
	186	return ret;
cbea21e2 BS	187	}
cbea21e2 BS	188
fbd58ebd BS	189	void *
	190	nvkm_object_dtor(struct nvkm_object *object)
	191	{
	192	struct nvkm_object child, ctemp;
	193	void *data = object;
	194	s64 time;
	195
	196	nvif_debug(object, "destroy children...\n");
	197	time = ktime_to_us(ktime_get());
	198	list_for_each_entry_safe(child, ctemp, &object->tree, head) {
	199	nvkm_object_del(&child);
	200	}
	201
	202	nvif_debug(object, "destroy running...\n");
	203	if (object->func->dtor)
	204	data = object->func->dtor(object);
	205	nvkm_engine_unref(&object->engine);
	206	time = ktime_to_us(ktime_get()) - time;
	207	nvif_debug(object, "destroy completed in %lldus...\n", time);
	208	return data;
	209	}
	210
	211	void
cbea21e2 BS	212	nvkm_object_del(struct nvkm_object **pobject)
	213	{
	214	struct nvkm_object object = pobject;
cbea21e2	215	if (object && !WARN_ON(!object->func)) {
fbd58ebd BS	216	*pobject = nvkm_object_dtor(object);
	217	nvkm_client_remove(object->client, object);
	218	list_del(&object->head);
cbea21e2 BS	219	kfree(*pobject);
	220	*pobject = NULL;
	221	}
	222	}
	223
	224	void
	225	nvkm_object_ctor(const struct nvkm_object_func *func,
	226	const struct nvkm_oclass oclass, struct nvkm_object object)
	227	{
	228	object->func = func;
	229	object->client = oclass->client;
6cf813fb	230	object->engine = nvkm_engine_ref(oclass->engine);
68f3f702	231	object->oclass = oclass->base.oclass;
cbea21e2	232	object->handle = oclass->handle;
fbd58ebd BS	233	INIT_LIST_HEAD(&object->head);
	234	INIT_LIST_HEAD(&object->tree);
	235	RB_CLEAR_NODE(&object->node);
	236	WARN_ON(oclass->engine && !object->engine);
cbea21e2 BS	237	}
	238
	239	int
	240	nvkm_object_new_(const struct nvkm_object_func *func,
	241	const struct nvkm_oclass oclass, void data, u32 size,
	242	struct nvkm_object **pobject)
	243	{
	244	if (size == 0) {
	245	if (!(pobject = kzalloc(sizeof(*pobject), GFP_KERNEL)))
	246	return -ENOMEM;
	247	nvkm_object_ctor(func, oclass, *pobject);
	248	return 0;
	249	}
	250	return -ENOSYS;
	251	}
	252
	253	static const struct nvkm_object_func
	254	nvkm_object_func = {
	255	};
	256
	257	int
	258	nvkm_object_new(const struct nvkm_oclass oclass, void data, u32 size,
	259	struct nvkm_object **pobject)
	260	{
	261	const struct nvkm_object_func *func =
	262	oclass->base.func ? oclass->base.func : &nvkm_object_func;
	263	return nvkm_object_new_(func, oclass, data, size, pobject);
	264	}