]> git.baikalelectronics.ru Git - kernel.git/commit
drm: radeon: fix up bus mastering when writeback is disabled
authorMichel Dänzer <michel@tungstengraphics.com>
Mon, 7 Aug 2006 10:37:46 +0000 (20:37 +1000)
committerDave Airlie <airlied@linux.ie>
Thu, 21 Sep 2006 19:32:30 +0000 (05:32 +1000)
commit5a0c6184e6e8128333e6de433ed76653ce3081f0
tree60faac04eb4cf6d08b01d41e33dddd0f8275aad0
parent37d8580462310d1d49bc63df9ff5cf95d444f1a6
drm: radeon: fix up bus mastering when writeback is disabled

When writeback isn't used, actually disable it in the hardware.

Not doing this might waste bus bandwidth or even cause memory corruption or
system crashes on systems that check bus transfers. No such incident has been
reported though.

Signed-off-by: Dave Airlie <airlied@linux.ie>
drivers/char/drm/radeon_cp.c
drivers/char/drm/radeon_drv.h