/*
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* Copyright 2012 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
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*/
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#include <core/object.h>
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#include <core/client.h>
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#include <core/engine.h>
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struct nvkm_object *
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nvkm_object_search(struct nvkm_client *client, u64 handle,
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const struct nvkm_object_func *func)
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{
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struct nvkm_object *object;
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if (handle) {
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struct rb_node *node = client->objroot.rb_node;
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while (node) {
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object = rb_entry(node, typeof(*object), node);
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if (handle < object->object)
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node = node->rb_left;
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else
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if (handle > object->object)
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node = node->rb_right;
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else
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goto done;
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}
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return ERR_PTR(-ENOENT);
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} else {
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object = &client->object;
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}
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done:
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if (unlikely(func && object->func != func))
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return ERR_PTR(-EINVAL);
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return object;
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}
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void
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nvkm_object_remove(struct nvkm_object *object)
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{
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if (!RB_EMPTY_NODE(&object->node))
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rb_erase(&object->node, &object->client->objroot);
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}
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bool
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nvkm_object_insert(struct nvkm_object *object)
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{
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struct rb_node **ptr = &object->client->objroot.rb_node;
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struct rb_node *parent = NULL;
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while (*ptr) {
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struct nvkm_object *this = rb_entry(*ptr, typeof(*this), node);
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parent = *ptr;
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if (object->object < this->object)
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ptr = &parent->rb_left;
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else
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if (object->object > this->object)
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ptr = &parent->rb_right;
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else
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return false;
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}
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rb_link_node(&object->node, parent, ptr);
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rb_insert_color(&object->node, &object->client->objroot);
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return true;
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}
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int
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nvkm_object_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
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{
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if (likely(object->func->mthd))
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return object->func->mthd(object, mthd, data, size);
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return -ENODEV;
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}
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int
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nvkm_object_ntfy(struct nvkm_object *object, u32 mthd,
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struct nvkm_event **pevent)
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{
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if (likely(object->func->ntfy))
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return object->func->ntfy(object, mthd, pevent);
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return -ENODEV;
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}
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int
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nvkm_object_map(struct nvkm_object *object, void *argv, u32 argc,
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enum nvkm_object_map *type, u64 *addr, u64 *size)
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{
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if (likely(object->func->map))
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return object->func->map(object, argv, argc, type, addr, size);
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return -ENODEV;
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}
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int
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nvkm_object_unmap(struct nvkm_object *object)
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{
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if (likely(object->func->unmap))
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return object->func->unmap(object);
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return -ENODEV;
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}
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int
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nvkm_object_rd08(struct nvkm_object *object, u64 addr, u8 *data)
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{
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if (likely(object->func->rd08))
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return object->func->rd08(object, addr, data);
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return -ENODEV;
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}
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int
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nvkm_object_rd16(struct nvkm_object *object, u64 addr, u16 *data)
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{
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if (likely(object->func->rd16))
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return object->func->rd16(object, addr, data);
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return -ENODEV;
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}
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int
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nvkm_object_rd32(struct nvkm_object *object, u64 addr, u32 *data)
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{
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if (likely(object->func->rd32))
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return object->func->rd32(object, addr, data);
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return -ENODEV;
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}
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int
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nvkm_object_wr08(struct nvkm_object *object, u64 addr, u8 data)
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{
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if (likely(object->func->wr08))
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return object->func->wr08(object, addr, data);
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return -ENODEV;
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}
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int
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nvkm_object_wr16(struct nvkm_object *object, u64 addr, u16 data)
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{
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if (likely(object->func->wr16))
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return object->func->wr16(object, addr, data);
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return -ENODEV;
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}
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int
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nvkm_object_wr32(struct nvkm_object *object, u64 addr, u32 data)
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{
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if (likely(object->func->wr32))
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return object->func->wr32(object, addr, data);
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return -ENODEV;
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}
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int
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nvkm_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *gpuobj,
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int align, struct nvkm_gpuobj **pgpuobj)
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{
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if (object->func->bind)
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return object->func->bind(object, gpuobj, align, pgpuobj);
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return -ENODEV;
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}
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int
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nvkm_object_fini(struct nvkm_object *object, bool suspend)
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{
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const char *action = suspend ? "suspend" : "fini";
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struct nvkm_object *child;
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s64 time;
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int ret;
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nvif_debug(object, "%s children...\n", action);
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time = ktime_to_us(ktime_get());
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list_for_each_entry(child, &object->tree, head) {
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ret = nvkm_object_fini(child, suspend);
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if (ret && suspend)
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goto fail_child;
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}
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nvif_debug(object, "%s running...\n", action);
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if (object->func->fini) {
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ret = object->func->fini(object, suspend);
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if (ret) {
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nvif_error(object, "%s failed with %d\n", action, ret);
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if (suspend)
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goto fail;
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}
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}
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time = ktime_to_us(ktime_get()) - time;
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nvif_debug(object, "%s completed in %lldus\n", action, time);
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return 0;
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fail:
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if (object->func->init) {
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int rret = object->func->init(object);
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if (rret)
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nvif_fatal(object, "failed to restart, %d\n", rret);
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}
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fail_child:
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list_for_each_entry_continue_reverse(child, &object->tree, head) {
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nvkm_object_init(child);
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}
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return ret;
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}
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int
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nvkm_object_init(struct nvkm_object *object)
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{
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struct nvkm_object *child;
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s64 time;
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int ret;
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nvif_debug(object, "init running...\n");
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time = ktime_to_us(ktime_get());
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if (object->func->init) {
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ret = object->func->init(object);
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if (ret)
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goto fail;
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}
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nvif_debug(object, "init children...\n");
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list_for_each_entry(child, &object->tree, head) {
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ret = nvkm_object_init(child);
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if (ret)
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goto fail_child;
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}
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time = ktime_to_us(ktime_get()) - time;
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nvif_debug(object, "init completed in %lldus\n", time);
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return 0;
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fail_child:
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list_for_each_entry_continue_reverse(child, &object->tree, head)
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nvkm_object_fini(child, false);
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fail:
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nvif_error(object, "init failed with %d\n", ret);
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if (object->func->fini)
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object->func->fini(object, false);
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return ret;
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}
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void *
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nvkm_object_dtor(struct nvkm_object *object)
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{
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struct nvkm_object *child, *ctemp;
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void *data = object;
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s64 time;
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nvif_debug(object, "destroy children...\n");
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time = ktime_to_us(ktime_get());
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list_for_each_entry_safe(child, ctemp, &object->tree, head) {
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nvkm_object_del(&child);
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}
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nvif_debug(object, "destroy running...\n");
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nvkm_object_unmap(object);
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if (object->func->dtor)
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data = object->func->dtor(object);
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nvkm_engine_unref(&object->engine);
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time = ktime_to_us(ktime_get()) - time;
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nvif_debug(object, "destroy completed in %lldus...\n", time);
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return data;
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}
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void
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nvkm_object_del(struct nvkm_object **pobject)
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{
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struct nvkm_object *object = *pobject;
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if (object && !WARN_ON(!object->func)) {
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*pobject = nvkm_object_dtor(object);
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nvkm_object_remove(object);
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list_del(&object->head);
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kfree(*pobject);
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*pobject = NULL;
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}
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}
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void
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nvkm_object_ctor(const struct nvkm_object_func *func,
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const struct nvkm_oclass *oclass, struct nvkm_object *object)
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{
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object->func = func;
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object->client = oclass->client;
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object->engine = nvkm_engine_ref(oclass->engine);
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object->oclass = oclass->base.oclass;
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object->handle = oclass->handle;
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object->route = oclass->route;
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object->token = oclass->token;
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object->object = oclass->object;
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INIT_LIST_HEAD(&object->head);
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INIT_LIST_HEAD(&object->tree);
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RB_CLEAR_NODE(&object->node);
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WARN_ON(IS_ERR(object->engine));
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}
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int
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nvkm_object_new_(const struct nvkm_object_func *func,
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const struct nvkm_oclass *oclass, void *data, u32 size,
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struct nvkm_object **pobject)
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{
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if (size == 0) {
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if (!(*pobject = kzalloc(sizeof(**pobject), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_object_ctor(func, oclass, *pobject);
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return 0;
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}
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return -ENOSYS;
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}
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static const struct nvkm_object_func
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nvkm_object_func = {
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};
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int
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nvkm_object_new(const struct nvkm_oclass *oclass, void *data, u32 size,
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struct nvkm_object **pobject)
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{
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const struct nvkm_object_func *func =
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oclass->base.func ? oclass->base.func : &nvkm_object_func;
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return nvkm_object_new_(func, oclass, data, size, pobject);
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}
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