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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-09-23 23:08:43 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-09-23 23:08:43 +0200 |
| commit | d7a4b414eed51f1653bb05ebe84122bf9a7ae18b (patch) | |
| tree | bd6603a0c27de4c138a1767871897e9cd3e1a1d2 /arch/arm/lib/findbit.S | |
| parent | 1f0ab40976460bc4673fa204ce917a725185d8f2 (diff) | |
| parent | a724eada8c2a7b62463b73ccf73fd0bb6e928aeb (diff) | |
Merge commit 'linus/master' into tracing/kprobes
Conflicts:
kernel/trace/Makefile
kernel/trace/trace.h
kernel/trace/trace_event_types.h
kernel/trace/trace_export.c
Merge reason:
Sync with latest significant tracing core changes.
Diffstat (limited to 'arch/arm/lib/findbit.S')
| -rw-r--r-- | arch/arm/lib/findbit.S | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/arch/arm/lib/findbit.S b/arch/arm/lib/findbit.S index 8c4defc4f3c..1e4cbd4e7be 100644 --- a/arch/arm/lib/findbit.S +++ b/arch/arm/lib/findbit.S @@ -25,7 +25,10 @@ ENTRY(_find_first_zero_bit_le) teq r1, #0 beq 3f mov r2, #0 -1: ldrb r3, [r0, r2, lsr #3] +1: + ARM( ldrb r3, [r0, r2, lsr #3] ) + THUMB( lsr r3, r2, #3 ) + THUMB( ldrb r3, [r0, r3] ) eors r3, r3, #0xff @ invert bits bne .L_found @ any now set - found zero bit add r2, r2, #8 @ next bit pointer @@ -44,7 +47,9 @@ ENTRY(_find_next_zero_bit_le) beq 3b ands ip, r2, #7 beq 1b @ If new byte, goto old routine - ldrb r3, [r0, r2, lsr #3] + ARM( ldrb r3, [r0, r2, lsr #3] ) + THUMB( lsr r3, r2, #3 ) + THUMB( ldrb r3, [r0, r3] ) eor r3, r3, #0xff @ now looking for a 1 bit movs r3, r3, lsr ip @ shift off unused bits bne .L_found @@ -61,7 +66,10 @@ ENTRY(_find_first_bit_le) teq r1, #0 beq 3f mov r2, #0 -1: ldrb r3, [r0, r2, lsr #3] +1: + ARM( ldrb r3, [r0, r2, lsr #3] ) + THUMB( lsr r3, r2, #3 ) + THUMB( ldrb r3, [r0, r3] ) movs r3, r3 bne .L_found @ any now set - found zero bit add r2, r2, #8 @ next bit pointer @@ -80,7 +88,9 @@ ENTRY(_find_next_bit_le) beq 3b ands ip, r2, #7 beq 1b @ If new byte, goto old routine - ldrb r3, [r0, r2, lsr #3] + ARM( ldrb r3, [r0, r2, lsr #3] ) + THUMB( lsr r3, r2, #3 ) + THUMB( ldrb r3, [r0, r3] ) movs r3, r3, lsr ip @ shift off unused bits bne .L_found orr r2, r2, #7 @ if zero, then no bits here @@ -95,7 +105,9 @@ ENTRY(_find_first_zero_bit_be) beq 3f mov r2, #0 1: eor r3, r2, #0x18 @ big endian byte ordering - ldrb r3, [r0, r3, lsr #3] + ARM( ldrb r3, [r0, r3, lsr #3] ) + THUMB( lsr r3, #3 ) + THUMB( ldrb r3, [r0, r3] ) eors r3, r3, #0xff @ invert bits bne .L_found @ any now set - found zero bit add r2, r2, #8 @ next bit pointer @@ -111,7 +123,9 @@ ENTRY(_find_next_zero_bit_be) ands ip, r2, #7 beq 1b @ If new byte, goto old routine eor r3, r2, #0x18 @ big endian byte ordering - ldrb r3, [r0, r3, lsr #3] + ARM( ldrb r3, [r0, r3, lsr #3] ) + THUMB( lsr r3, #3 ) + THUMB( ldrb r3, [r0, r3] ) eor r3, r3, #0xff @ now looking for a 1 bit movs r3, r3, lsr ip @ shift off unused bits bne .L_found @@ -125,7 +139,9 @@ ENTRY(_find_first_bit_be) beq 3f mov r2, #0 1: eor r3, r2, #0x18 @ big endian byte ordering - ldrb r3, [r0, r3, lsr #3] + ARM( ldrb r3, [r0, r3, lsr #3] ) + THUMB( lsr r3, #3 ) + THUMB( ldrb r3, [r0, r3] ) movs r3, r3 bne .L_found @ any now set - found zero bit add r2, r2, #8 @ next bit pointer @@ -141,7 +157,9 @@ ENTRY(_find_next_bit_be) ands ip, r2, #7 beq 1b @ If new byte, goto old routine eor r3, r2, #0x18 @ big endian byte ordering - ldrb r3, [r0, r3, lsr #3] + ARM( ldrb r3, [r0, r3, lsr #3] ) + THUMB( lsr r3, #3 ) + THUMB( ldrb r3, [r0, r3] ) movs r3, r3, lsr ip @ shift off unused bits bne .L_found orr r2, r2, #7 @ if zero, then no bits here |