path: root/drivers/video/aty/radeon_backlight.c
diff options
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-10-15 22:03:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 11:21:44 -0700
commitb1ee26bab14886350ba12a5c10cbc0696ac679bf (patch)
tree18fff332492d5a989dde01864cfb3c524976209d /drivers/video/aty/radeon_backlight.c
parenta6c0c37db654444dfce91cd75ad8a56bb15a0d25 (diff)
radeonfb: accelerate imageblit and other improvements
Implement support for HW color expansion of 1bpp images, along with some improvements to the FIFO handling and other accel operations. The offset fixup code is now unnecessary as the fbcon core will call our set_par upon switch back from KD_GRAPHICS before anything else happens. I removed it as it would slow down accel operations. The fifo wait has been improved to avoid hitting the HW register as often, and the various accel ops are now performing better caching of register values. Overall, this improve accel performances. The imageblit acceleration does result in a small overall regression in performances on some machines (on the order of 5% on some x86), probably becaus the SW path provides a better bus utilisation, but I decided to ingnore that as the performances is still very good, and on the other hand, some machines such as some sparc64 get a 3 fold performance improvement. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/aty/radeon_backlight.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/aty/radeon_backlight.c b/drivers/video/aty/radeon_backlight.c
index 1a056adb61c..f343ba83f0a 100644
--- a/drivers/video/aty/radeon_backlight.c
+++ b/drivers/video/aty/radeon_backlight.c
@@ -66,7 +66,7 @@ static int radeon_bl_update_status(struct backlight_device *bd)
level = bd->props.brightness;
- radeon_engine_idle();
+ radeon_engine_idle(rinfo);
lvds_gen_cntl = INREG(LVDS_GEN_CNTL);
if (level > 0) {