diff options
Diffstat (limited to 'source/include/platform/aclinux.h')
| -rw-r--r-- | source/include/platform/aclinux.h | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/source/include/platform/aclinux.h b/source/include/platform/aclinux.h index edfff15..45c73f4 100644 --- a/source/include/platform/aclinux.h +++ b/source/include/platform/aclinux.h @@ -55,11 +55,9 @@ #include <linux/string.h> #include <linux/kernel.h> -#include <linux/module.h> #include <linux/ctype.h> #include <linux/sched.h> -#include <asm/system.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/div64.h> #include <asm/acpi.h> #include <linux/slab.h> @@ -87,18 +85,17 @@ /* Host-dependent types and defines for user-space ACPICA */ #define ACPI_FLUSH_CPU_CACHE() +#define ACPI_CAST_PTHREAD_T(pthread) ((ACPI_THREAD_ID) (pthread)) #if defined(__ia64__) || defined(__x86_64__) #define ACPI_MACHINE_WIDTH 64 #define COMPILER_DEPENDENT_INT64 long #define COMPILER_DEPENDENT_UINT64 unsigned long -#define ACPI_CAST_PTHREAD_T(pthread) ((ACPI_THREAD_ID) (pthread)) #else #define ACPI_MACHINE_WIDTH 32 #define COMPILER_DEPENDENT_INT64 long long #define COMPILER_DEPENDENT_UINT64 unsigned long long #define ACPI_USE_NATIVE_DIVIDE -#define ACPI_CAST_PTHREAD_T(pthread) ((ACPI_THREAD_ID) (UINT32) (void *) (pthread)) #endif #ifndef __cdecl @@ -113,12 +110,13 @@ #ifdef __KERNEL__ +#include <acpi/actypes.h> /* * Overrides for in-kernel ACPICA */ static inline acpi_thread_id acpi_os_get_thread_id(void) { - return current; + return (ACPI_THREAD_ID) (unsigned long) current; } /* @@ -127,7 +125,6 @@ static inline acpi_thread_id acpi_os_get_thread_id(void) * However, boot has (system_state != SYSTEM_RUNNING) * to quiet __might_sleep() in kmalloc() and resume does not. */ -#include <acpi/actypes.h> static inline void *acpi_os_allocate(acpi_size size) { return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); @@ -148,13 +145,35 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache) #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a) #define ACPI_FREE(a) kfree(a) -/* Used within ACPICA to show where it is safe to preempt execution */ - +#ifndef CONFIG_PREEMPT +/* + * Used within ACPICA to show where it is safe to preempt execution + * when CONFIG_PREEMPT=n + */ #define ACPI_PREEMPTION_POINT() \ do { \ if (!irqs_disabled()) \ cond_resched(); \ } while (0) +#endif + +/* + * When lockdep is enabled, the spin_lock_init() macro stringifies it's + * argument and uses that as a name for the lock in debugging. + * By executing spin_lock_init() in a macro the key changes from "lock" for + * all locks to the name of the argument of acpi_os_create_lock(), which + * prevents lockdep from reporting false positives for ACPICA locks. + */ +#define AcpiOsCreateLock(__handle) \ +({ \ + spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ + \ + if (lock) { \ + *(__handle) = lock; \ + spin_lock_init(*(__handle)); \ + } \ + lock ? AE_OK : AE_NO_MEMORY; \ +}) #endif /* __KERNEL__ */ |
