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Diffstat (limited to 'c/src/lib/libcpu/hppa1.1/semaphore/semaphore.h')
-rw-r--r-- | c/src/lib/libcpu/hppa1.1/semaphore/semaphore.h | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/c/src/lib/libcpu/hppa1.1/semaphore/semaphore.h b/c/src/lib/libcpu/hppa1.1/semaphore/semaphore.h deleted file mode 100644 index 04f709cf64..0000000000 --- a/c/src/lib/libcpu/hppa1.1/semaphore/semaphore.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * File: $RCSfile$ - * Project: PixelFlow - * Created: 94/11/29 - * RespEngr: tony e bennett - * Revision: $Revision$ - * Last Mod: $Date$ - * - * COPYRIGHT (c) 1994 by Division Incorporated - * - * To anyone who acknowledges that this file is provided "AS IS" - * without any express or implied warranty: - * permission to use, copy, modify, and distribute this file - * for any purpose is hereby granted without fee, provided that - * the above copyright notice and this notice appears in all - * copies, and that the name of Division Incorporated not be - * used in advertising or publicity pertaining to distribution - * of the software without specific, written prior permission. - * Division Incorporated makes no representations about the - * suitability of this software for any purpose. - * - * Description: - * HPPA fast spinlock semaphores based on LDCWX instruction. - * These semaphores are not known to RTEMS. - * - * TODO: - * - * $Id$ - */ - -#ifndef _INCLUDE_SEMAPHORE_H -#define _INCLUDE_SEMAPHORE_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * This structure has hardware requirements. - * LDCWX opcode requires 16byte alignment for the lock - * 'lock' must be first member of structure. - */ - -#define SEM_ALIGN 16 - -typedef volatile struct { - - rtems_unsigned32 lock __attribute__ ((aligned (SEM_ALIGN))); - - rtems_unsigned32 flags; - - void *owner_tcb; /* for debug/commentary only */ - - rtems_unsigned32 user; /* for use by user */ - -} hppa_semaphore_t; - -/* - * Values for flags - */ - -#define HPPA_SEM_IN_USE 0x0001 /* semaphore owned by somebody */ -#define HPPA_SEM_NO_SPIN 0x0002 /* don't spin if unavailable */ -#define HPPA_SEM_INITIALLY_FREE 0x0004 /* init it to be free */ - -/* - * Caller specifiable flags - */ - -#define HPPA_SEM_CALLER_FLAGS (HPPA_SEM_NO_SPIN | HPPA_SEM_INITIALLY_FREE) - -void hppa_semaphore_pool_initialize(void *pool_base, int pool_size); - -rtems_unsigned32 hppa_semaphore_acquire(hppa_semaphore_t *sp, int flag); - -void hppa_semaphore_release(hppa_semaphore_t *sp); - -hppa_semaphore_t *hppa_semaphore_allocate(rtems_unsigned32 which, int flag); - -#ifdef __cplusplus -} -#endif - -#endif /* ! _INCLUDE_SEMAPHORE_H */ |