xenocara/lib/libdrm/etnaviv/etnaviv_cmd_stream.c
2016-10-16 06:01:17 +00:00

244 lines
6.1 KiB
C

/*
* Copyright (C) 2014-2015 Etnaviv 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 (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:
* Christian Gmeiner <christian.gmeiner@gmail.com>
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include "etnaviv_drmif.h"
#include "etnaviv_priv.h"
static pthread_mutex_t idx_lock = PTHREAD_MUTEX_INITIALIZER;
static void *grow(void *ptr, uint32_t nr, uint32_t *max, uint32_t sz)
{
if ((nr + 1) > *max) {
if ((*max * 2) < (nr + 1))
*max = nr + 5;
else
*max = *max * 2;
ptr = realloc(ptr, *max * sz);
}
return ptr;
}
#define APPEND(x, name) ({ \
(x)->name = grow((x)->name, (x)->nr_ ## name, &(x)->max_ ## name, sizeof((x)->name[0])); \
(x)->nr_ ## name ++; \
})
static inline struct etna_cmd_stream_priv *
etna_cmd_stream_priv(struct etna_cmd_stream *stream)
{
return (struct etna_cmd_stream_priv *)stream;
}
struct etna_cmd_stream *etna_cmd_stream_new(struct etna_pipe *pipe, uint32_t size,
void (*reset_notify)(struct etna_cmd_stream *stream, void *priv),
void *priv)
{
struct etna_cmd_stream_priv *stream = NULL;
if (size == 0) {
ERROR_MSG("invalid size of 0");
goto fail;
}
stream = calloc(1, sizeof(*stream));
if (!stream) {
ERROR_MSG("allocation failed");
goto fail;
}
/* allocate even number of 32-bit words */
size = ALIGN(size, 2);
stream->base.buffer = malloc(size * sizeof(uint32_t));
if (!stream->base.buffer) {
ERROR_MSG("allocation failed");
goto fail;
}
stream->base.size = size;
stream->pipe = pipe;
stream->reset_notify = reset_notify;
stream->reset_notify_priv = priv;
return &stream->base;
fail:
if (stream)
etna_cmd_stream_del(&stream->base);
return NULL;
}
void etna_cmd_stream_del(struct etna_cmd_stream *stream)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
free(stream->buffer);
free(priv->submit.relocs);
free(priv);
}
static void reset_buffer(struct etna_cmd_stream *stream)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
stream->offset = 0;
priv->submit.nr_bos = 0;
priv->submit.nr_relocs = 0;
priv->nr_bos = 0;
if (priv->reset_notify)
priv->reset_notify(stream, priv->reset_notify_priv);
}
uint32_t etna_cmd_stream_timestamp(struct etna_cmd_stream *stream)
{
return etna_cmd_stream_priv(stream)->last_timestamp;
}
static uint32_t append_bo(struct etna_cmd_stream *stream, struct etna_bo *bo)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
uint32_t idx;
idx = APPEND(&priv->submit, bos);
idx = APPEND(priv, bos);
priv->submit.bos[idx].flags = 0;
priv->submit.bos[idx].handle = bo->handle;
priv->bos[idx] = etna_bo_ref(bo);
return idx;
}
/* add (if needed) bo, return idx: */
static uint32_t bo2idx(struct etna_cmd_stream *stream, struct etna_bo *bo,
uint32_t flags)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
uint32_t idx;
pthread_mutex_lock(&idx_lock);
if (!bo->current_stream) {
idx = append_bo(stream, bo);
bo->current_stream = stream;
bo->idx = idx;
} else if (bo->current_stream == stream) {
idx = bo->idx;
} else {
/* slow-path: */
for (idx = 0; idx < priv->nr_bos; idx++)
if (priv->bos[idx] == bo)
break;
if (idx == priv->nr_bos) {
/* not found */
idx = append_bo(stream, bo);
}
}
pthread_mutex_unlock(&idx_lock);
if (flags & ETNA_RELOC_READ)
priv->submit.bos[idx].flags |= ETNA_SUBMIT_BO_READ;
if (flags & ETNA_RELOC_WRITE)
priv->submit.bos[idx].flags |= ETNA_SUBMIT_BO_WRITE;
return idx;
}
static void flush(struct etna_cmd_stream *stream)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
int ret, id = priv->pipe->id;
struct etna_gpu *gpu = priv->pipe->gpu;
struct drm_etnaviv_gem_submit req = {
.pipe = gpu->core,
.exec_state = id,
.bos = VOID2U64(priv->submit.bos),
.nr_bos = priv->submit.nr_bos,
.relocs = VOID2U64(priv->submit.relocs),
.nr_relocs = priv->submit.nr_relocs,
.stream = VOID2U64(stream->buffer),
.stream_size = stream->offset * 4, /* in bytes */
};
ret = drmCommandWriteRead(gpu->dev->fd, DRM_ETNAVIV_GEM_SUBMIT,
&req, sizeof(req));
if (ret)
ERROR_MSG("submit failed: %d (%s)", ret, strerror(errno));
else
priv->last_timestamp = req.fence;
for (uint32_t i = 0; i < priv->nr_bos; i++) {
struct etna_bo *bo = priv->bos[i];
bo->current_stream = NULL;
etna_bo_del(bo);
}
}
void etna_cmd_stream_flush(struct etna_cmd_stream *stream)
{
flush(stream);
reset_buffer(stream);
}
void etna_cmd_stream_finish(struct etna_cmd_stream *stream)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
flush(stream);
etna_pipe_wait(priv->pipe, priv->last_timestamp, 5000);
reset_buffer(stream);
}
void etna_cmd_stream_reloc(struct etna_cmd_stream *stream, const struct etna_reloc *r)
{
struct etna_cmd_stream_priv *priv = etna_cmd_stream_priv(stream);
struct drm_etnaviv_gem_submit_reloc *reloc;
uint32_t idx = APPEND(&priv->submit, relocs);
uint32_t addr = 0;
reloc = &priv->submit.relocs[idx];
reloc->reloc_idx = bo2idx(stream, r->bo, r->flags);
reloc->reloc_offset = r->offset;
reloc->submit_offset = stream->offset * 4; /* in bytes */
reloc->flags = 0;
etna_cmd_stream_emit(stream, addr);
}