/* lookup a buffer, call with table_lock mutex locked */
static struct drm_tegra_bo * lookup_bo(void *table, uint32_t key)
{
struct drm_tegra_bo_bucket *bucket;
struct drm_tegra_bo *bo;
void *value;
if (drmHashLookup(table, key, &value))
return NULL;
bo = value;
if (!DRMLISTEMPTY(&bo->bo_list)) {
/* mark BO as available for access under valgrind */
drm_tegra_reset_bo(bo, 0, false);
/* take out BO from the bucket */
DRMLISTDELINIT(&bo->bo_list);
/* update bucket stats */
bucket = drm_tegra_get_bucket(bo->drm, bo->size);
bucket->num_entries--;
}
/* found, increment reference count */
atomic_inc(&bo->ref);
return bo;
}
static int check_table(HashTablePtr table,
unsigned long key, void * value)
{
void *retval;
int retcode = drmHashLookup(table, key, &retval);
switch (retcode) {
case -1:
printf("Bad magic = 0x%08lx:"
" key = %lu, expected = %p, returned = %p\n",
table->magic, key, value, retval);
break;
case 1:
printf("Not found: key = %lu, expected = %p, returned = %p\n",
key, value, retval);
break;
case 0:
if (value != retval) {
printf("Bad value: key = %lu, expected = %p, returned = %p\n",
key, value, retval);
retcode = -1;
}
break;
default:
printf("Bad retcode = %d: key = %lu, expected = %p, returned = %p\n",
retcode, key, value, retval);
break;
}
return retcode;
}
/* lookup a buffer, call w/ table_lock held: */
static struct fd_bo * lookup_bo(void *tbl, uint32_t key)
{
struct fd_bo *bo = NULL;
if (!drmHashLookup(tbl, key, (void **)&bo)) {
/* found, incr refcnt and return: */
bo = fd_bo_ref(bo);
}
return bo;
}
/* lookup a buffer from it's handle, call w/ table_lock held: */
static struct etna_bo * lookup_bo(struct etna_device *dev,
uint32_t handle)
{
struct etna_bo *bo = NULL;
if (!drmHashLookup(dev->handle_table, handle, (void **)&bo)) {
/* found, incr refcnt and return: */
bo = etna_bo_ref(bo);
}
return bo;
}
/* lookup a buffer, call w/ table_lock held: */
static struct fd_bo * lookup_bo(void *tbl, uint32_t key)
{
struct fd_bo *bo = NULL;
if (!drmHashLookup(tbl, key, (void **)&bo)) {
/* found, incr refcnt and return: */
bo = fd_bo_ref(bo);
/* don't break the bucket if this bo was found in one */
list_delinit(&bo->list);
}
return bo;
}
void *hash_lookup_callback(struct locked_hash_table *table,
unsigned long key, hash_callback_t func)
{
void *value;
int ret;
pthread_rwlock_rdlock(&table->lock);
ret = drmHashLookup(table->table, key, &value);
if (!ret && func)
func(value);
pthread_rwlock_unlock(&table->lock);
return ret ? NULL : value;
}
struct fd_device * fd_device_new(int fd)
{
struct fd_device *dev = NULL;
int key = fd;
pthread_mutex_lock(&table_lock);
if (!dev_table)
dev_table = drmHashCreate();
if (drmHashLookup(dev_table, key, (void **)&dev)) {
dev = fd_device_new_impl(fd);
if (dev)
drmHashInsert(dev_table, key, dev);
} else {
dev = fd_device_ref(dev);
}
pthread_mutex_unlock(&table_lock);
return dev;
}
drm_public struct omap_device * omap_device_new(int fd)
{
struct omap_device *dev = NULL;
pthread_mutex_lock(&table_lock);
if (!dev_table)
dev_table = drmHashCreate();
if (drmHashLookup(dev_table, fd, (void **)&dev)) {
/* not found, create new device */
dev = omap_device_new_impl(fd);
drmHashInsert(dev_table, fd, dev);
} else {
/* found, just incr refcnt */
dev = omap_device_ref(dev);
}
pthread_mutex_unlock(&table_lock);
return dev;
}
int
getDRIDrawableInfoLocked(void *drawHash, Display *display, int screen, Drawable draw,
unsigned lockFlags, int drmFD, drm_context_t drmContext,
drmAddress sarea, Bool updateInfo, drawableInfo **info,
unsigned long infoSize)
{
drawableInfo *drawInfo;
void *res;
drm_drawable_t drmDraw=0;
volatile drm_sarea_t *pSarea = (drm_sarea_t *) sarea;
drm_clip_rect_t *clipFront, *clipBack;
int ret;
if (drmHashLookup(drawHash, (unsigned long) draw, &res)) {
/*
* The drawable is unknown to us. Create it and put it in the
* hash table.
*/
DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
if (!uniDRICreateDrawable(display, screen, draw,
&drmDraw)) {
DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
return 1;
}
DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
drawInfo = (drawableInfo *) malloc(infoSize);
if (!drawInfo) return 1;
drawInfo->drmDraw = drmDraw;
drawInfo->stamp = 0;
drawInfo->clipFront = 0;
drawInfo->clipBack = 0;
drmHashInsert( drawHash, (unsigned long) draw, drawInfo);
} else {
drawInfo = res;
}
drawInfo->touched = FALSE;
while (!drawInfo->clipFront || drawInfo->stamp != drawStamp(pSarea, drawInfo->index)) {
/*
* The drawable has been touched since we last got info about it.
* obtain new info from the X server.
*/
drawInfo->touched = TRUE;
if (updateInfo || !drawInfo->clipFront) {
DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
ret = uniDRIGetDrawableInfo(display, screen, draw,
&drawInfo->index, &drawInfo->stamp, &drawInfo->x,
&drawInfo->y, &drawInfo->w, &drawInfo->h,
&drawInfo->numClipFront, &clipFront,
&drawInfo->backX, &drawInfo->backY,
&drawInfo->numClipBack, &clipBack);
DRM_LIGHT_LOCK(drmFD, &pSarea->lock, drmContext);
/*
* Error. Probably the drawable is destroyed. Return error and old values.
*/
if (!ret) {
free(drawInfo);
drawInfo = NULL;
drmHashDelete(drawHash, (unsigned long) draw);
DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
uniDRIDestroyDrawable( display, screen, draw);
DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
return 1;
}
if (drawInfo->stamp != drawStamp(pSarea, drawInfo->index)) {
/*
* The info is already outdated. Sigh. Have another go.
*/
XFree(clipFront);
XFree(clipBack);
continue;
}
if (drawInfo->clipFront) XFree(drawInfo->clipFront);
drawInfo->clipFront = clipFront;
if (drawInfo->clipBack) XFree(drawInfo->clipBack);
drawInfo->clipBack = clipBack;
} else {
if (!drawInfo->clipFront) drawInfo->clipFront = (drm_clip_rect_t *) ~0UL;
drawInfo->stamp = drawStamp(pSarea, drawInfo->index);
}
}
*info = drawInfo;
return 0;
}
