diff options
Diffstat (limited to 'include/asm-m32r')
| -rw-r--r-- | include/asm-m32r/pgtable-2level.h | 6 | ||||
| -rw-r--r-- | include/asm-m32r/pgtable.h | 4 | ||||
| -rw-r--r-- | include/asm-m32r/spinlock.h | 9 | ||||
| -rw-r--r-- | include/asm-m32r/system.h | 4 | ||||
| -rw-r--r-- | include/asm-m32r/unistd.h | 5 |
5 files changed, 20 insertions, 8 deletions
diff --git a/include/asm-m32r/pgtable-2level.h b/include/asm-m32r/pgtable-2level.h index be0f167e344..6a674e3d37a 100644 --- a/include/asm-m32r/pgtable-2level.h +++ b/include/asm-m32r/pgtable-2level.h @@ -52,9 +52,13 @@ static inline int pgd_present(pgd_t pgd) { return 1; } #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) #define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval) -#define pgd_page(pgd) \ +#define pgd_page_vaddr(pgd) \ ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) +#ifndef CONFIG_DISCONTIGMEM +#define pgd_page(pgd) (mem_map + ((pgd_val(pgd) >> PAGE_SHIFT) - PFN_BASE)) +#endif /* !CONFIG_DISCONTIGMEM */ + static inline pmd_t *pmd_offset(pgd_t * dir, unsigned long address) { return (pmd_t *) dir; diff --git a/include/asm-m32r/pgtable.h b/include/asm-m32r/pgtable.h index 1983b7f4527..1c15ba7ce31 100644 --- a/include/asm-m32r/pgtable.h +++ b/include/asm-m32r/pgtable.h @@ -336,7 +336,7 @@ static inline void pmd_set(pmd_t * pmdp, pte_t * ptep) pmd_val(*pmdp) = (((unsigned long) ptep) & PAGE_MASK); } -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) #ifndef CONFIG_DISCONTIGMEM @@ -358,7 +358,7 @@ static inline void pmd_set(pmd_t * pmdp, pte_t * ptep) #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *)pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *)pmd_page_vaddr(*(dir)) + pte_index(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) #define pte_offset_map_nested(dir, address) pte_offset_map(dir, address) diff --git a/include/asm-m32r/spinlock.h b/include/asm-m32r/spinlock.h index f94c1a67356..f9f90727a4a 100644 --- a/include/asm-m32r/spinlock.h +++ b/include/asm-m32r/spinlock.h @@ -298,7 +298,14 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw) ); } -#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +static inline int __raw_read_trylock(raw_rwlock_t *lock) +{ + atomic_t *count = (atomic_t*)lock; + if (atomic_dec_return(count) >= 0) + return 1; + atomic_inc(count); + return 0; +} static inline int __raw_write_trylock(raw_rwlock_t *lock) { diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h index 9e618afec6e..4ce0619f698 100644 --- a/include/asm-m32r/system.h +++ b/include/asm-m32r/system.h @@ -328,15 +328,15 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) #define smp_rmb() rmb() #define smp_wmb() wmb() #define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while (0) +#define set_mb(var, value) do { var = value; barrier(); } while (0) #endif -#define set_mb(var, value) do { xchg(&var, value); } while (0) - #define arch_align_stack(x) (x) #endif /* _ASM_M32R_SYSTEM_H */ diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h index 89f376e6229..5c6a9ac6cf1 100644 --- a/include/asm-m32r/unistd.h +++ b/include/asm-m32r/unistd.h @@ -296,8 +296,9 @@ #ifdef __KERNEL__ #define NR_syscalls 285 +#include <linux/err.h> -/* user-visible error numbers are in the range -1 - -124: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see * <asm-m32r/errno.h> */ @@ -305,7 +306,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-(124 + 1))) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* Avoid using "res" which is declared to be in register r0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ |