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sna: Avoid unnecessary call overhead for read-only move-to-cpu 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-01-03 12:46:40 +00:00
parent 294c8791c4
commit bd7aa1754d
2 changed files with 13 additions and 3 deletions
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12
src/sna/sna.h
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@ -433,7 +433,17 @@ struct kgem_bo *sna_pixmap_change_tiling(PixmapPtr pixmap, uint32_t tiling);
#define MOVE_WRITE 0x1
#define MOVE_READ 0x2
bool must_check sna_pixmap_move_to_cpu(PixmapPtr pixmap, unsigned flags);
bool must_check _sna_pixmap_move_to_cpu(PixmapPtr pixmap, unsigned flags);
static inline bool must_check sna_pixmap_move_to_cpu(PixmapPtr pixmap, unsigned flags)
{
if (flags == MOVE_READ) {
struct sna_pixmap *priv = sna_pixmap(pixmap);
if (priv == NULL || priv->gpu_damage == NULL)
return true;
}
return _sna_pixmap_move_to_cpu(pixmap, flags);
}
bool must_check sna_drawable_move_region_to_cpu(DrawablePtr drawable,
RegionPtr region,
unsigned flags);

4
src/sna/sna_accel.c
View File

@ -658,7 +658,7 @@ static inline bool pixmap_inplace(struct sna *sna,
}
bool
sna_pixmap_move_to_cpu(PixmapPtr pixmap, unsigned int flags)
_sna_pixmap_move_to_cpu(PixmapPtr pixmap, unsigned int flags)
{
struct sna *sna = to_sna_from_pixmap(pixmap);
struct sna_pixmap *priv;
@ -885,7 +885,7 @@ sna_drawable_move_region_to_cpu(DrawablePtr drawable,
DBG(("%s: region subsumes drawable\n", __FUNCTION__));
if (dx | dy)
RegionTranslate(region, -dx, -dy);
return sna_pixmap_move_to_cpu(pixmap, flags);
return _sna_pixmap_move_to_cpu(pixmap, flags);
}
if ((flags & MOVE_READ) == 0) {