diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-03-16 11:34:41 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-03-16 11:34:41 +1000 |
| commit | 38f1cff0863809587b5fd10ecd0c24c8b543a48c (patch) | |
| tree | 7cf6eb88cdc938c3683209d38311e711a1119400 /arch/sh/lib/delay.c | |
| parent | 4819d2e4310796c4e9eef674499af9b9caf36b5a (diff) | |
| parent | 5359533801e3dd3abca5b7d3d985b0b33fd9fe8b (diff) | |
Merge commit '5359533801e3dd3abca5b7d3d985b0b33fd9fe8b' into drm-core-next
This commit changed an internal radeon structure, that meant a new driver
in -next had to be fixed up, merge in the commit and fix up the driver.
Also fixes a trivial nouveau merge.
Conflicts:
drivers/gpu/drm/nouveau/nouveau_mem.c
Diffstat (limited to 'arch/sh/lib/delay.c')
| -rw-r--r-- | arch/sh/lib/delay.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/lib/delay.c b/arch/sh/lib/delay.c index faa8f86c0db..0901b2f14e1 100644 --- a/arch/sh/lib/delay.c +++ b/arch/sh/lib/delay.c @@ -10,6 +10,16 @@ void __delay(unsigned long loops) { __asm__ __volatile__( + /* + * ST40-300 appears to have an issue with this code, + * normally taking two cycles each loop, as with all + * other SH variants. If however the branch and the + * delay slot straddle an 8 byte boundary, this increases + * to 3 cycles. + * This align directive ensures this doesn't occur. + */ + ".balign 8\n\t" + "tst %0, %0\n\t" "1:\t" "bf/s 1b\n\t" |