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/*
* 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
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include <errno.h>
#include "libdrm_lists.h"
#include "nouveau.h"
#include "private.h"
struct nouveau_bufref_priv {
struct nouveau_bufref base;
struct nouveau_bufref_priv *next;
struct nouveau_bufctx *bufctx;
};
struct nouveau_bufbin_priv {
struct nouveau_bufref_priv *list;
int relocs;
};
struct nouveau_bufctx_priv {
struct nouveau_bufctx base;
struct nouveau_bufref_priv *free;
int nr_bins;
struct nouveau_bufbin_priv bins[];
};
static inline struct nouveau_bufctx_priv *
nouveau_bufctx(struct nouveau_bufctx *bctx)
{
return (struct nouveau_bufctx_priv *)bctx;
}
int
nouveau_bufctx_new(struct nouveau_client *client, int bins,
struct nouveau_bufctx **pbctx)
{
struct nouveau_bufctx_priv *priv;
priv = calloc(1, sizeof(*priv) + sizeof(priv->bins[0]) * bins);
if (priv) {
DRMINITLISTHEAD(&priv->base.head);
DRMINITLISTHEAD(&priv->base.pending);
DRMINITLISTHEAD(&priv->base.current);
priv->base.client = client;
priv->nr_bins = bins;
*pbctx = &priv->base;
return 0;
}
return -ENOMEM;
}
void
nouveau_bufctx_del(struct nouveau_bufctx **pbctx)
{
struct nouveau_bufctx_priv *pctx = nouveau_bufctx(*pbctx);
struct nouveau_bufref_priv *pref;
if (pctx) {
while (pctx->nr_bins--)
nouveau_bufctx_reset(&pctx->base, pctx->nr_bins);
while ((pref = pctx->free)) {
pctx->free = pref->next;
free(pref);
}
free(pctx);
*pbctx = NULL;
}
}
void
nouveau_bufctx_reset(struct nouveau_bufctx *bctx, int bin)
{
struct nouveau_bufctx_priv *pctx = nouveau_bufctx(bctx);
struct nouveau_bufbin_priv *pbin = &pctx->bins[bin];
struct nouveau_bufref_priv *pref;
while ((pref = pbin->list)) {
DRMLISTDELINIT(&pref->base.thead);
pbin->list = pref->next;
pref->next = pctx->free;
pctx->free = pref;
}
bctx->relocs -= pbin->relocs;
pbin->relocs = 0;
}
struct nouveau_bufref *
nouveau_bufctx_refn(struct nouveau_bufctx *bctx, int bin,
struct nouveau_bo *bo, uint32_t flags)
{
struct nouveau_bufctx_priv *pctx = nouveau_bufctx(bctx);
struct nouveau_bufbin_priv *pbin = &pctx->bins[bin];
struct nouveau_bufref_priv *pref = pctx->free;
if (!pref)
pref = malloc(sizeof(*pref));
else
pctx->free = pref->next;
if (pref) {
pref->base.bo = bo;
pref->base.flags = flags;
pref->base.packet = 0;
DRMLISTADDTAIL(&pref->base.thead, &bctx->pending);
pref->bufctx = bctx;
pref->next = pbin->list;
pbin->list = pref;
}
return &pref->base;
}
struct nouveau_bufref *
nouveau_bufctx_mthd(struct nouveau_bufctx *bctx, int bin, uint32_t packet,
struct nouveau_bo *bo, uint64_t data, uint32_t flags,
uint32_t vor, uint32_t tor)
{
struct nouveau_bufctx_priv *pctx = nouveau_bufctx(bctx);
struct nouveau_bufbin_priv *pbin = &pctx->bins[bin];
struct nouveau_bufref *bref = nouveau_bufctx_refn(bctx, bin, bo, flags);
if (bref) {
bref->packet = packet;
bref->data = data;
bref->vor = vor;
bref->tor = tor;
pbin->relocs++;
bctx->relocs++;
}
return bref;
}
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