diff options
Diffstat (limited to 'include/asm-generic')
-rw-r--r-- | include/asm-generic/atomic.h | 116 | ||||
-rw-r--r-- | include/asm-generic/bitops.h | 1 | ||||
-rw-r--r-- | include/asm-generic/vmlinux.lds.h | 4 |
3 files changed, 121 insertions, 0 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h new file mode 100644 index 0000000..e0a28b9 --- /dev/null +++ b/include/asm-generic/atomic.h @@ -0,0 +1,116 @@ +#ifndef _ASM_GENERIC_ATOMIC_H +#define _ASM_GENERIC_ATOMIC_H +/* + * Copyright (C) 2005 Silicon Graphics, Inc. + * Christoph Lameter <clameter@sgi.com> + * + * Allows to provide arch independent atomic definitions without the need to + * edit all arch specific atomic.h files. + */ + + +/* + * Suppport for atomic_long_t + * + * Casts for parameters are avoided for existing atomic functions in order to + * avoid issues with cast-as-lval under gcc 4.x and other limitations that the + * macros of a platform may have. + */ + +#if BITS_PER_LONG == 64 + +typedef atomic64_t atomic_long_t; + +#define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i) + +static inline long atomic_long_read(atomic_long_t *l) +{ + atomic64_t *v = (atomic64_t *)l; + + return (long)atomic64_read(v); +} + +static inline void atomic_long_set(atomic_long_t *l, long i) +{ + atomic64_t *v = (atomic64_t *)l; + + atomic_set(v, i); +} + +static inline void atomic_long_inc(atomic_long_t *l) +{ + atomic64_t *v = (atomic64_t *)l; + + atomic64_inc(v); +} + +static inline void atomic_long_dec(atomic_long_t *l) +{ + atomic64_t *v = (atomic64_t *)l; + + atomic64_dec(v); +} + +static inline void atomic_long_add(long i, atomic_long_t *l) +{ + atomic64_t *v = (atomic64_t *)l; + + atomic64_add(i, v); +} + +static inline void atomic_long_sub(long i, atomic_long_t *l) +{ + atomic64_t *v = (atomic64_t *)l; + + atomic64_sub(i, v); +} + +#else + +typedef atomic_t atomic_long_t; + +#define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i) +static inline long atomic_long_read(atomic_long_t *l) +{ + atomic_t *v = (atomic_t *)l; + + return (long)atomic_read(v); +} + +static inline void atomic_long_set(atomic_long_t *l, long i) +{ + atomic_t *v = (atomic_t *)l; + + atomic_set(v, i); +} + +static inline void atomic_long_inc(atomic_long_t *l) +{ + atomic_t *v = (atomic_t *)l; + + atomic_inc(v); +} + +static inline void atomic_long_dec(atomic_long_t *l) +{ + atomic_t *v = (atomic_t *)l; + + atomic_dec(v); +} + +static inline void atomic_long_add(long i, atomic_long_t *l) +{ + atomic_t *v = (atomic_t *)l; + + atomic_add(i, v); +} + +static inline void atomic_long_sub(long i, atomic_long_t *l) +{ + atomic_t *v = (atomic_t *)l; + + atomic_sub(i, v); +} + +#endif +#endif diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h index ce31b73..0e6d985 100644 --- a/include/asm-generic/bitops.h +++ b/include/asm-generic/bitops.h @@ -56,6 +56,7 @@ extern __inline__ int test_bit(int nr, const unsigned long * addr) */ #define fls(x) generic_fls(x) +#define fls64(x) generic_fls64(x) #ifdef __KERNEL__ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 094d491..35de20c 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -10,6 +10,8 @@ #define ALIGN_FUNCTION() . = ALIGN(8) #define RODATA \ + . = ALIGN(4096); \ + __start_rodata = .; \ .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ *(.rodata) *(.rodata.*) \ *(__vermagic) /* Kernel version magic */ \ @@ -74,6 +76,8 @@ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ *(__ksymtab_strings) \ } \ + __end_rodata = .; \ + . = ALIGN(4096); \ \ /* Built-in module parameters. */ \ __param : AT(ADDR(__param) - LOAD_OFFSET) { \ |