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authorGregory Nutt <gnutt@nuttx.org>2014-08-28 08:10:19 -0600
committerGregory Nutt <gnutt@nuttx.org>2014-08-28 08:10:19 -0600
commit8840883bda397389b96654b3637f8549fd7af226 (patch)
tree65114106c4e2ccb506d58e9ea2dc3dedbbf8097f /nuttx/arch/z80
parent4226c6c8e4f1feadfd3b084b48681a63d48a9af4 (diff)
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Add address environment support to ALL implementatins of up_release_pending()
Diffstat (limited to 'nuttx/arch/z80')
-rw-r--r--nuttx/arch/z80/src/common/up_releasepending.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/nuttx/arch/z80/src/common/up_releasepending.c b/nuttx/arch/z80/src/common/up_releasepending.c
index 6acc6f760..99771609e 100644
--- a/nuttx/arch/z80/src/common/up_releasepending.c
+++ b/nuttx/arch/z80/src/common/up_releasepending.c
@@ -1,7 +1,7 @@
/****************************************************************************
* arch/z80/src/common/up_releasepending.c
*
- * Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ * Copyright (C) 2007-2009, 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@@ -47,6 +47,7 @@
#include "chip/chip.h"
#include "chip/switch.h"
#include "sched/sched.h"
+#include "group/group.h"
#include "up_internal.h"
/****************************************************************************
@@ -108,7 +109,8 @@ void up_release_pending(void)
slldbg("New Active Task TCB=%p\n", rtcb);
/* Then setup so that the context will be performed on exit
- * from the interrupt.
+ * from the interrupt. Any necessary address environment
+ * changes will be made when the interrupt returns.
*/
SET_IRQCONTEXT(rtcb);
@@ -129,6 +131,15 @@ void up_release_pending(void)
rtcb = (FAR struct tcb_s*)g_readytorun.head;
slldbg("New Active Task TCB=%p\n", rtcb);
+#ifdef CONFIG_ARCH_ADDRENV
+ /* Make sure that the address environment for the previously
+ * running task is closed down gracefully (data caches dump,
+ * MMU flushed) and set up the address environment for the new
+ * thread at the head of the ready-to-run list.
+ */
+
+ (void)group_addrenv(rtcb);
+#endif
/* Then switch contexts */
RESTORE_USERCONTEXT(rtcb);