linux/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.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 "chan.h"
#include "chid.h"
#include "cgrp.h"
#include "runl.h"
#include "priv.h"

#include <core/ramht.h>
#include <subdev/mmu.h>
#include <engine/dma.h>

#include <nvif/if0020.h>

const struct nvkm_event_func
nvkm_chan_event = …;

void
nvkm_chan_cctx_bind(struct nvkm_chan *chan, struct nvkm_engn *engn, struct nvkm_cctx *cctx)
{ … }

void
nvkm_chan_cctx_put(struct nvkm_chan *chan, struct nvkm_cctx **pcctx)
{ … }

int
nvkm_chan_cctx_get(struct nvkm_chan *chan, struct nvkm_engn *engn, struct nvkm_cctx **pcctx,
		   struct nvkm_client *client)
{ … }

int
nvkm_chan_preempt_locked(struct nvkm_chan *chan, bool wait)
{ … }

int
nvkm_chan_preempt(struct nvkm_chan *chan, bool wait)
{ … }

void
nvkm_chan_remove_locked(struct nvkm_chan *chan)
{ … }

void
nvkm_chan_remove(struct nvkm_chan *chan, bool preempt)
{ … }

void
nvkm_chan_insert(struct nvkm_chan *chan)
{ … }

static void
nvkm_chan_block_locked(struct nvkm_chan *chan)
{ … }

void
nvkm_chan_error(struct nvkm_chan *chan, bool preempt)
{ … }

void
nvkm_chan_block(struct nvkm_chan *chan)
{ … }

void
nvkm_chan_allow(struct nvkm_chan *chan)
{ … }

void
nvkm_chan_del(struct nvkm_chan **pchan)
{ … }

void
nvkm_chan_put(struct nvkm_chan **pchan, unsigned long irqflags)
{ … }

struct nvkm_chan *
nvkm_chan_get_inst(struct nvkm_engine *engine, u64 inst, unsigned long *pirqflags)
{ … }

struct nvkm_chan *
nvkm_chan_get_chid(struct nvkm_engine *engine, int id, unsigned long *pirqflags)
{ … }

int
nvkm_chan_new_(const struct nvkm_chan_func *func, struct nvkm_runl *runl, int runq,
	       struct nvkm_cgrp *cgrp, const char *name, bool priv, u32 devm, struct nvkm_vmm *vmm,
	       struct nvkm_dmaobj *dmaobj, u64 offset, u64 length,
	       struct nvkm_memory *userd, u64 ouserd, struct nvkm_chan **pchan)
{ … }