xf86-video-ati: Branch '6.12-branch'

[Alex Deucher]

 src/r600_exa.c |    4 ++++
 1 file changed, 4 insertions(+)

New commits:
commit a2968896884545f5c8f3f16c398c1ee4534ad7a8
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Tue Aug 25 11:39:56 2009 -0400

    RV740: disable small DFS transfers
    
    Seems problematic on all rv740 chips, so until we
    can find a solution, disable them.

diff --git a/src/r600_exa.c b/src/r600_exa.c
index 77e94ea..bee8f09 100644
--- a/src/r600_exa.c
+++ b/src/r600_exa.c
@@ -1847,6 +1847,10 @@ R600DownloadFromScreen(PixmapPtr pSrc, int x, int y, int w, int h,
     int wpass = w * (bpp/8);
     drmBufPtr scratch;
 
+    /* RV740 seems to be particularly problematic with small xfers */
+    if ((info->ChipFamily == CHIP_FAMILY_RV740) && (w < 32 || h < 32))
+	return FALSE;
+
     if (src_pitch & 7)
 	return FALSE;