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/*
* Copyright 2007 Nouveau Project
*
* 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 AUTHORS 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.
*/
#ifndef __NOUVEAU_PUSHBUF_H__
#define __NOUVEAU_PUSHBUF_H__
#include <assert.h>
#include <string.h>
#include "nouveau_bo.h"
#include "nouveau_grobj.h"
struct nouveau_pushbuf {
struct nouveau_channel *channel;
unsigned remaining;
uint32_t *cur;
};
int
nouveau_pushbuf_flush(struct nouveau_channel *, unsigned min);
int
nouveau_pushbuf_emit_reloc(struct nouveau_channel *, void *ptr,
struct nouveau_bo *, uint32_t data, uint32_t flags,
uint32_t vor, uint32_t tor);
/* Push buffer access macros */
static __inline__ void
OUT_RING(struct nouveau_channel *chan, unsigned data)
{
*(chan->pushbuf->cur++) = (data);
}
static __inline__ void
OUT_RINGp(struct nouveau_channel *chan, const void *data, unsigned size)
{
memcpy(chan->pushbuf->cur, data, size * 4);
chan->pushbuf->cur += size;
}
static __inline__ void
OUT_RINGf(struct nouveau_channel *chan, float f)
{
union { uint32_t i; float f; } c;
c.f = f;
OUT_RING(chan, c.i);
}
static __inline__ unsigned
AVAIL_RING(struct nouveau_channel *chan)
{
return chan->pushbuf->remaining;
}
static __inline__ void
WAIT_RING(struct nouveau_channel *chan, unsigned size)
{
if (chan->pushbuf->remaining < size)
nouveau_pushbuf_flush(chan, size);
}
static __inline__ void
BEGIN_RING(struct nouveau_channel *chan, struct nouveau_grobj *gr,
unsigned mthd, unsigned size)
{
if (gr->bound == NOUVEAU_GROBJ_UNBOUND)
nouveau_grobj_autobind(gr);
chan->subc[gr->subc].sequence = chan->subc_sequence++;
WAIT_RING(chan, size + 1);
OUT_RING(chan, (gr->subc << 13) | (size << 18) | mthd);
chan->pushbuf->remaining -= (size + 1);
}
static __inline__ void
FIRE_RING(struct nouveau_channel *chan)
{
nouveau_pushbuf_flush(chan, 0);
}
static __inline__ void
BIND_RING(struct nouveau_channel *chan, struct nouveau_grobj *gr, unsigned sc)
{
struct nouveau_subchannel *subc = &gr->channel->subc[sc];
if (subc->gr) {
if (subc->gr->bound == NOUVEAU_GROBJ_BOUND_EXPLICIT)
assert(0);
subc->gr->bound = NOUVEAU_GROBJ_UNBOUND;
}
subc->gr = gr;
subc->gr->subc = sc;
subc->gr->bound = NOUVEAU_GROBJ_BOUND_EXPLICIT;
BEGIN_RING(chan, gr, 0x0000, 1);
OUT_RING (chan, gr->handle);
}
static __inline__ void
OUT_RELOC(struct nouveau_channel *chan, struct nouveau_bo *bo,
unsigned data, unsigned flags, unsigned vor, unsigned tor)
{
nouveau_pushbuf_emit_reloc(chan, chan->pushbuf->cur++, bo,
data, flags, vor, tor);
}
/* Raw data + flags depending on FB/TT buffer */
static __inline__ void
OUT_RELOCd(struct nouveau_channel *chan, struct nouveau_bo *bo,
unsigned data, unsigned flags, unsigned vor, unsigned tor)
{
OUT_RELOC(chan, bo, data, flags | NOUVEAU_BO_OR, vor, tor);
}
/* FB/TT object handle */
static __inline__ void
OUT_RELOCo(struct nouveau_channel *chan, struct nouveau_bo *bo,
unsigned flags)
{
OUT_RELOC(chan, bo, 0, flags | NOUVEAU_BO_OR,
chan->vram->handle, chan->gart->handle);
}
/* Low 32-bits of offset */
static __inline__ void
OUT_RELOCl(struct nouveau_channel *chan, struct nouveau_bo *bo,
unsigned delta, unsigned flags)
{
OUT_RELOC(chan, bo, delta, flags | NOUVEAU_BO_LOW, 0, 0);
}
/* High 32-bits of offset */
static __inline__ void
OUT_RELOCh(struct nouveau_channel *chan, struct nouveau_bo *bo,
unsigned delta, unsigned flags)
{
OUT_RELOC(chan, bo, delta, flags | NOUVEAU_BO_HIGH, 0, 0);
}
#endif
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