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changes remerged after disk crash -- history lost

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This commit is contained in:
Joel Sherrill
1995-12-19 20:26:32 +00:00
parent 7593d56c4f
commit 8bdcfc474f
23 changed files with 31 additions and 399 deletions
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9
c/src/lib/libbsp/unix/posix/shmsupp/README
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@@ -1,9 +0,0 @@
#
# $Id$
#
This directory contains the SHM driver support files for
System V/POSIX derived UNIX flavors.
WARNING: The interrupt support in this directory currently will
only work in a homogeneous system.

30
c/src/lib/libbsp/unix/posix/shmsupp/addrconv.c
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@@ -1,30 +0,0 @@
/* rtems_unsigned32 *Shm_Convert_address( addr )
*
* No address range conversion is required.
*
* Input parameters:
* addr - address to convert
*
* Output parameters:
* returns - converted address
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#include <bsp.h>
#include <shm.h>
void *Shm_Convert_address(
void *addr
)
{
return ( addr );
}

74
c/src/lib/libbsp/unix/posix/shmsupp/getcfg.c
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@@ -1,74 +0,0 @@
/* void Shm_get_config( localnode, &shmcfg )
*
* This routine initializes, if necessary, and returns a pointer
* to the Shared Memory Configuration Table for the UNIX
* simulator.
*
* INPUT PARAMETERS:
* localnode - local node number
* shmcfg - address of pointer to SHM Config Table
*
* OUTPUT PARAMETERS:
* *shmcfg - pointer to SHM Config Table
*
* NOTES: This driver is capable of supporting a practically unlimited
* number of nodes.
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#include <bsp.h>
#include <shm.h>
shm_config_table BSP_shm_cfgtbl;
int semid;
void Shm_Cause_interrupt_unix(
rtems_unsigned32 node
);
void Shm_Get_configuration(
rtems_unsigned32 localnode,
shm_config_table **shmcfg
)
{
_CPU_SHM_Init(
Shm_Maximum_nodes,
Shm_Is_master_node(),
(void **)&BSP_shm_cfgtbl.base,
(unsigned32 *)&BSP_shm_cfgtbl.length
);
BSP_shm_cfgtbl.format = SHM_BIG;
BSP_shm_cfgtbl.cause_intr = Shm_Cause_interrupt_unix;
#ifdef NEUTRAL_BIG
BSP_shm_cfgtbl.convert = NULL_CONVERT;
#else
BSP_shm_cfgtbl.convert = CPU_swap_u32;
#endif
if ( _CPU_SHM_Get_vector() ) {
BSP_shm_cfgtbl.poll_intr = INTR_MODE;
BSP_shm_cfgtbl.Intr.address = (vol_u32 *) _CPU_Get_pid(); /* process id */
BSP_shm_cfgtbl.Intr.value = _CPU_SHM_Get_vector(); /* signal to send */
BSP_shm_cfgtbl.Intr.length = LONG;
} else {
BSP_shm_cfgtbl.poll_intr = POLLED_MODE;
BSP_shm_cfgtbl.Intr.address = NO_INTERRUPT;
BSP_shm_cfgtbl.Intr.value = NO_INTERRUPT;
BSP_shm_cfgtbl.Intr.length = NO_INTERRUPT;
}
*shmcfg = &BSP_shm_cfgtbl;
}

33
c/src/lib/libbsp/unix/posix/shmsupp/intr.c
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@@ -1,33 +0,0 @@
/* void Shm_interrupt_unix( node )
*
* This routine is the shared memory driver routine which
* generates interrupts to other CPUs.
*
* Input parameters:
* node - destination of this packet (0 = broadcast)
*
* Output parameters: NONE
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#include <bsp.h>
#include <shm.h>
void Shm_Cause_interrupt_unix(
rtems_unsigned32 node
)
{
Shm_Interrupt_information *intr;
intr = &Shm_Interrupt_table[node];
_CPU_SHM_Send_interrupt( (int) intr->address, (int) intr->value );
}

74
c/src/lib/libbsp/unix/posix/shmsupp/lock.c
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@@ -1,74 +0,0 @@
/* Shared Memory Lock Routines
*
* This shared memory locked queue support routine need to be
* able to lock the specified locked queue. Interrupts are
* disabled while the queue is locked to prevent preemption
* and deadlock when two tasks poll for the same lock.
* previous level.
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#include <bsp.h>
#include <shm.h>
extern int semid;
/*
* Shm_Initialize_lock
*
* Initialize the lock for the specified locked queue.
*/
void Shm_Initialize_lock(
Shm_Locked_queue_Control *lq_cb
)
{
lq_cb->lock = lq_cb - Shm_Locked_queues;
}
/* Shm_Lock( &lq_cb )
*
* This shared memory locked queue support routine locks the
* specified locked queue. It disables interrupts to prevent
* a deadlock condition.
*/
void Shm_Lock(
Shm_Locked_queue_Control *lq_cb
)
{
rtems_unsigned32 isr_level;
rtems_interrupt_disable( isr_level );
Shm_isrstat = isr_level;
_CPU_SHM_Lock( lq_cb->lock );
}
/*
* Shm_Unlock
*
* Unlock the lock for the specified locked queue.
*/
void Shm_Unlock(
Shm_Locked_queue_Control *lq_cb
)
{
rtems_unsigned32 isr_level;
_CPU_SHM_Unlock( lq_cb->lock );
isr_level = Shm_isrstat;
rtems_interrupt_enable( isr_level );
}