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| author | David S. Miller <davem@davemloft.net> | 2011-03-10 14:26:00 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-10 14:26:00 -0800 |
| commit | 33175d84ee3fa29991adb80513683e010769e807 (patch) | |
| tree | 3731f61cf82451b6892cf1368701e57e35d92908 /arch/sh/lib/delay.c | |
| parent | c5908939b2738bafe1b309bc2465cb9f2e6184c5 (diff) | |
| parent | 6dfbd87a20a737641ef228230c77f4262434fa24 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/bnx2x/bnx2x_cmn.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" |