diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/lib/atomic_64.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/sparc/lib/atomic_64.S | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/lib/atomic_64.S b/ANDROID_3.4.5/arch/sparc/lib/atomic_64.S deleted file mode 100644 index 59186e0f..00000000 --- a/ANDROID_3.4.5/arch/sparc/lib/atomic_64.S +++ /dev/null @@ -1,134 +0,0 @@ -/* atomic.S: These things are too big to do inline. - * - * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net) - */ - -#include <asm/asi.h> -#include <asm/backoff.h> - - .text - - /* Two versions of the atomic routines, one that - * does not return a value and does not perform - * memory barriers, and a second which returns - * a value and does the barriers. - */ - .globl atomic_add - .type atomic_add,#function -atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: lduw [%o1], %g1 - add %g1, %o0, %g7 - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) - nop - retl - nop -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add, .-atomic_add - - .globl atomic_sub - .type atomic_sub,#function -atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: lduw [%o1], %g1 - sub %g1, %o0, %g7 - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) - nop - retl - nop -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_sub, .-atomic_sub - - .globl atomic_add_ret - .type atomic_add_ret,#function -atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: lduw [%o1], %g1 - add %g1, %o0, %g7 - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) - add %g1, %o0, %g1 - retl - sra %g1, 0, %o0 -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add_ret, .-atomic_add_ret - - .globl atomic_sub_ret - .type atomic_sub_ret,#function -atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: lduw [%o1], %g1 - sub %g1, %o0, %g7 - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) - sub %g1, %o0, %g1 - retl - sra %g1, 0, %o0 -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_sub_ret, .-atomic_sub_ret - - .globl atomic64_add - .type atomic64_add,#function -atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: ldx [%o1], %g1 - add %g1, %o0, %g7 - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) - nop - retl - nop -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add, .-atomic64_add - - .globl atomic64_sub - .type atomic64_sub,#function -atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: ldx [%o1], %g1 - sub %g1, %o0, %g7 - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) - nop - retl - nop -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_sub, .-atomic64_sub - - .globl atomic64_add_ret - .type atomic64_add_ret,#function -atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: ldx [%o1], %g1 - add %g1, %o0, %g7 - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) - nop - retl - add %g1, %o0, %o0 -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add_ret, .-atomic64_add_ret - - .globl atomic64_sub_ret - .type atomic64_sub_ret,#function -atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) -1: ldx [%o1], %g1 - sub %g1, %o0, %g7 - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) - nop - retl - sub %g1, %o0, %o0 -2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_sub_ret, .-atomic64_sub_ret |