diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/acpi.h | 26 | ||||
| -rw-r--r-- | include/asm-x86_64/acpi.h | 26 |
2 files changed, 4 insertions, 48 deletions
diff --git a/include/asm-i386/acpi.h b/include/asm-i386/acpi.h index 6016632d032f..29bee1dcde72 100644 --- a/include/asm-i386/acpi.h +++ b/include/asm-i386/acpi.h | |||
| @@ -56,30 +56,8 @@ | |||
| 56 | #define ACPI_ENABLE_IRQS() local_irq_enable() | 56 | #define ACPI_ENABLE_IRQS() local_irq_enable() |
| 57 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() | 57 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() |
| 58 | 58 | ||
| 59 | 59 | int __acpi_acquire_global_lock(unsigned int *lock); | |
| 60 | static inline int | 60 | int __acpi_release_global_lock(unsigned int *lock); |
| 61 | __acpi_acquire_global_lock (unsigned int *lock) | ||
| 62 | { | ||
| 63 | unsigned int old, new, val; | ||
| 64 | do { | ||
| 65 | old = *lock; | ||
| 66 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | ||
| 67 | val = cmpxchg(lock, old, new); | ||
| 68 | } while (unlikely (val != old)); | ||
| 69 | return (new < 3) ? -1 : 0; | ||
| 70 | } | ||
| 71 | |||
| 72 | static inline int | ||
| 73 | __acpi_release_global_lock (unsigned int *lock) | ||
| 74 | { | ||
| 75 | unsigned int old, new, val; | ||
| 76 | do { | ||
| 77 | old = *lock; | ||
| 78 | new = old & ~0x3; | ||
| 79 | val = cmpxchg(lock, old, new); | ||
| 80 | } while (unlikely (val != old)); | ||
| 81 | return old & 0x1; | ||
| 82 | } | ||
| 83 | 61 | ||
| 84 | #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ | 62 | #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ |
| 85 | ((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr)) | 63 | ((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr)) |
diff --git a/include/asm-x86_64/acpi.h b/include/asm-x86_64/acpi.h index ed59aa4c6ff9..1371e88666ed 100644 --- a/include/asm-x86_64/acpi.h +++ b/include/asm-x86_64/acpi.h | |||
| @@ -54,30 +54,8 @@ | |||
| 54 | #define ACPI_ENABLE_IRQS() local_irq_enable() | 54 | #define ACPI_ENABLE_IRQS() local_irq_enable() |
| 55 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() | 55 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() |
| 56 | 56 | ||
| 57 | 57 | int __acpi_acquire_global_lock(unsigned int *lock); | |
| 58 | static inline int | 58 | int __acpi_release_global_lock(unsigned int *lock); |
| 59 | __acpi_acquire_global_lock (unsigned int *lock) | ||
| 60 | { | ||
| 61 | unsigned int old, new, val; | ||
| 62 | do { | ||
| 63 | old = *lock; | ||
| 64 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | ||
| 65 | val = cmpxchg(lock, old, new); | ||
| 66 | } while (unlikely (val != old)); | ||
| 67 | return (new < 3) ? -1 : 0; | ||
| 68 | } | ||
| 69 | |||
| 70 | static inline int | ||
| 71 | __acpi_release_global_lock (unsigned int *lock) | ||
| 72 | { | ||
| 73 | unsigned int old, new, val; | ||
| 74 | do { | ||
| 75 | old = *lock; | ||
| 76 | new = old & ~0x3; | ||
| 77 | val = cmpxchg(lock, old, new); | ||
| 78 | } while (unlikely (val != old)); | ||
| 79 | return old & 0x1; | ||
| 80 | } | ||
| 81 | 59 | ||
| 82 | #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ | 60 | #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ |
| 83 | ((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr)) | 61 | ((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr)) |