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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-03 10:34:36 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-03 10:34:36 +0200 |
| commit | b5259d944279d0b7e78a83849a352d8ba0447c4c (patch) | |
| tree | 42f0e7dc404bc776f9a736c17f52c121da166fc1 /arch/avr32/lib/findbit.S | |
| parent | 1c50b728c3e734150b8a4a8310ce3e01bc5c70be (diff) | |
| parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff) | |
Merge commit 'v2.6.27-rc8' into core/rcu
Diffstat (limited to 'arch/avr32/lib/findbit.S')
| -rw-r--r-- | arch/avr32/lib/findbit.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S index c6b91dee857c..997b33b2288a 100644 --- a/arch/avr32/lib/findbit.S +++ b/arch/avr32/lib/findbit.S @@ -123,6 +123,36 @@ ENTRY(find_next_bit) brgt 1b retal r11 +ENTRY(generic_find_next_le_bit) + lsr r8, r10, 5 + sub r9, r11, r10 + retle r11 + + lsl r8, 2 + add r12, r8 + andl r10, 31, COH + breq 1f + + /* offset is not word-aligned. Handle the first (32 - r10) bits */ + ldswp.w r8, r12[0] + sub r12, -4 + lsr r8, r8, r10 + brne .L_found + + /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */ + add r9, r10 + sub r9, 32 + retle r11 + + /* Main loop. offset must be word-aligned */ +1: ldswp.w r8, r12[0] + cp.w r8, 0 + brne .L_found + sub r12, -4 + sub r9, 32 + brgt 1b + retal r11 + ENTRY(generic_find_next_zero_le_bit) lsr r8, r10, 5 sub r9, r11, r10 |