xf86-video-intel: src/sna/sna_accel.c

[Chris Wilson]

 src/sna/sna_accel.c |    3 +++
 1 file changed, 3 insertions(+)

New commits:
commit 991ffcb60a15f08ebb396d4d4ec86d5aff0ded31
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Nov 11 23:20:36 2011 +0000

    sna: Reset the source counter if we completely dirty the CPU pixmap
    
    For a long lived pixmap which we are repeatedly using for upload and
    copying to other pixmaps, we don't want to keep to maintain a GPU
    buffer. So instead, reset the source counter if we discard the GPU bo
    and treat the pixmap as purely CPU.
    
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 561747d..2dc86ca 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -166,6 +166,9 @@ static void sna_pixmap_destroy_gpu_bo(struct sna *sna, struct sna_pixmap *priv)
 {
 	kgem_bo_destroy(&sna->kgem, priv->gpu_bo);
 	priv->gpu_bo = NULL;
+
+	/* and reset the upload counter */
+	priv->source_count = SOURCE_BIAS;
 }
 
 static Bool sna_destroy_private(PixmapPtr pixmap, struct sna_pixmap *priv)