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tdfxfb: replace busy waiting with cpu_relax 

This patch replaces busy waiting with cpu_relax() call.  This makes scrolling
faster.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt 2007-10-16 01:29:26 -07:00 committed by Linus Torvalds
parent 366367bdef
commit f67fd7c10f
1 changed files with 2 additions and 1 deletions
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3
drivers/video/tdfxfb.c
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@ -273,7 +273,8 @@ static inline void banshee_make_room(struct tdfx_par *par, int size)
{
/* Note: The Voodoo3's onboard FIFO has 32 slots. This loop
* won't quit if you ask for more. */
while ((tdfx_inl(par, STATUS) & 0x1f) < size - 1) ;
while ((tdfx_inl(par, STATUS) & 0x1f) < size - 1)
cpu_relax();
}
static int banshee_wait_idle(struct fb_info *info)