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-rw-r--r--cpukit/score/cpu/powerpc/rtems/score/cpusmplock.h95
1 files changed, 0 insertions, 95 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpusmplock.h b/cpukit/score/cpu/powerpc/rtems/score/cpusmplock.h
deleted file mode 100644
index f5ff9622f4..0000000000
--- a/cpukit/score/cpu/powerpc/rtems/score/cpusmplock.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/**
- * @file
- *
- * @ingroup ScoreSMPLockPowerPC
- *
- * @brief PowerPC SMP Lock Implementation
- */
-
-/*
- * Copyright (c) 2013 embedded brains GmbH
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.com/license/LICENSE.
- */
-
-#ifndef _RTEMS_SCORE_POWERPC_SMPLOCK_H
-#define _RTEMS_SCORE_POWERPC_SMPLOCK_H
-
-#include <rtems/score/cpu.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/**
- * @defgroup ScoreSMPLockPowerPC PowerPC SMP Locks
- *
- * @ingroup ScoreSMPLock
- *
- * A ticket lock implementation is used.
- *
- * @{
- */
-
-typedef struct {
- uint32_t next_ticket;
- uint32_t now_serving;
-} CPU_SMP_lock_Control;
-
-#define CPU_SMP_LOCK_INITIALIZER { 0, 0 }
-
-static inline void _CPU_SMP_lock_Initialize( CPU_SMP_lock_Control *lock )
-{
- lock->next_ticket = 0;
- lock->now_serving = 0;
-}
-
-static inline void _CPU_SMP_lock_Acquire( CPU_SMP_lock_Control *lock )
-{
- uint32_t my_ticket;
- uint32_t next_ticket;
-
- __asm__ volatile (
- "1: lwarx %[my_ticket], 0, %[next_ticket_addr]\n"
- "addi %[next_ticket], %[my_ticket], 1\n"
- "stwcx. %[next_ticket], 0, [%[next_ticket_addr]]\n"
- "bne 1b\n"
- "isync"
- : [my_ticket] "=&r" (my_ticket),
- [next_ticket] "=&r" (next_ticket)
- : [next_ticket_addr] "r" (&lock->next_ticket)
- : "cc", "memory"
- );
-
- while ( my_ticket != lock->now_serving ) {
- __asm__ volatile ( "" : : : "memory" );
- }
-}
-
-static inline void _CPU_SMP_lock_Release( CPU_SMP_lock_Control *lock )
-{
- __asm__ volatile ( "msync" : : : "memory" );
- ++lock->now_serving;
-}
-
-#define _CPU_SMP_lock_ISR_disable_and_acquire( lock, isr_cookie ) \
- do { \
- _CPU_ISR_Disable( isr_cookie ); \
- _CPU_SMP_lock_Acquire( lock ); \
- } while (0)
-
-#define _CPU_SMP_lock_Release_and_ISR_enable( lock, isr_cookie ) \
- do { \
- _CPU_SMP_lock_Release( lock ); \
- _CPU_ISR_Enable( isr_cookie ); \
- } while (0)
-
-/**@}*/
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* _RTEMS_SCORE_POWERPC_SMPLOCK_H */