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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* 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 (including the next
* paragraph) 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 OR COPYRIGHT HOLDERS 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:
* Rob Clark <robclark@freedesktop.org>
*/
#include <assert.h>
#include "freedreno_drmif.h"
#include "freedreno_priv.h"
#include "freedreno_ringbuffer.h"
struct fd_ringbuffer * fd_ringbuffer_new(struct fd_pipe *pipe,
uint32_t size)
{
struct fd_ringbuffer *ring;
ring = pipe->funcs->ringbuffer_new(pipe, size);
if (!ring)
return NULL;
ring->size = size;
ring->pipe = pipe;
ring->start = ring->funcs->hostptr(ring);
ring->end = &(ring->start[size/4]);
ring->cur = ring->last_start = ring->start;
return ring;
}
void fd_ringbuffer_del(struct fd_ringbuffer *ring)
{
ring->funcs->destroy(ring);
}
void fd_ringbuffer_reset(struct fd_ringbuffer *ring)
{
uint32_t *start = ring->start;
if (ring->pipe->id == FD_PIPE_2D)
start = &ring->start[0x140];
ring->cur = ring->last_start = start;
}
/* maybe get rid of this and use fd_ringmarker_flush() from DDX too? */
int fd_ringbuffer_flush(struct fd_ringbuffer *ring)
{
return ring->funcs->flush(ring, ring->last_start);
}
uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring)
{
return ring->last_timestamp;
}
void fd_ringbuffer_reloc(struct fd_ringbuffer *ring,
const struct fd_reloc *reloc)
{
ring->funcs->emit_reloc(ring, reloc);
}
void fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
struct fd_ringmarker *target, struct fd_ringmarker *end)
{
assert(target->ring == end->ring);
ring->funcs->emit_reloc_ring(ring, target, end);
}
struct fd_ringmarker * fd_ringmarker_new(struct fd_ringbuffer *ring)
{
struct fd_ringmarker *marker = NULL;
marker = calloc(1, sizeof(*marker));
if (!marker) {
ERROR_MSG("allocation failed");
return NULL;
}
marker->ring = ring;
fd_ringmarker_mark(marker);
return marker;
}
void fd_ringmarker_del(struct fd_ringmarker *marker)
{
free(marker);
}
void fd_ringmarker_mark(struct fd_ringmarker *marker)
{
marker->cur = marker->ring->cur;
}
uint32_t fd_ringmarker_dwords(struct fd_ringmarker *start,
struct fd_ringmarker *end)
{
return end->cur - start->cur;
}
int fd_ringmarker_flush(struct fd_ringmarker *marker)
{
struct fd_ringbuffer *ring = marker->ring;
return ring->funcs->flush(ring, marker->cur);
}
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