From 41c928242335a544b17b94c6a21baebdc5d8b995 Mon Sep 17 00:00:00 2001
From: Ralf Corsepius <ralf.corsepius@rtems.org>
Date: Mon, 9 Jan 2006 10:41:21 +0000
Subject: Backport from rtems-4-6-branch.

---
 c/src/lib/libbsp/sparc/leon3/include/tm27.h | 79 +++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 c/src/lib/libbsp/sparc/leon3/include/tm27.h

(limited to 'c/src/lib/libbsp/sparc/leon3/include/tm27.h')

diff --git a/c/src/lib/libbsp/sparc/leon3/include/tm27.h b/c/src/lib/libbsp/sparc/leon3/include/tm27.h
new file mode 100644
index 0000000000..db26a82b19
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/leon3/include/tm27.h
@@ -0,0 +1,79 @@
+/*
+ *  tm27.h
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#ifndef _RTEMS_TMTEST27
+#error "This is an RTEMS internal file you must not include directly."
+#endif
+
+#ifndef __tm27_h
+#define __tm27_h
+
+/*
+ *  Define the interrupt mechanism for Time Test 27
+ *
+ *  NOTE: Since the interrupt code for the SPARC supports both synchronous
+ *        and asynchronous trap handlers, support for testing with both
+ *        is included.
+ */
+
+#define SIS_USE_SYNCHRONOUS_TRAP  0
+
+/*
+ *  The synchronous trap is an arbitrarily chosen software trap.
+ */
+
+#if (SIS_USE_SYNCHRONOUS_TRAP == 1)
+
+#define TEST_VECTOR SPARC_SYNCHRONOUS_TRAP( 0x90 )
+
+#define MUST_WAIT_FOR_INTERRUPT 1
+
+#define Install_tm27_vector( handler ) \
+  set_vector( (handler), TEST_VECTOR, 1 );
+
+#define Cause_tm27_intr() \
+  asm volatile( "ta 0x10; nop " );
+
+#define Clear_tm27_intr() /* empty */
+
+#define Lower_tm27_intr() /* empty */
+
+/*
+ *  The asynchronous trap is an arbitrarily chosen ERC32 interrupt source.
+ */
+
+#else   /* use a regular asynchronous trap */
+
+#define TEST_INTERRUPT_SOURCE LEON_INTERRUPT_EXTERNAL_1
+#define TEST_VECTOR LEON_TRAP_TYPE( TEST_INTERRUPT_SOURCE )
+#define TEST_INTERRUPT_SOURCE2 LEON_INTERRUPT_EXTERNAL_1+1
+#define TEST_VECTOR2 LEON_TRAP_TYPE( TEST_INTERRUPT_SOURCE2 )
+#define MUST_WAIT_FOR_INTERRUPT 1
+
+#define Install_tm27_vector( handler ) \
+  set_vector( (handler), TEST_VECTOR, 1 ); \
+  set_vector( (handler), TEST_VECTOR2, 1 );
+
+#define Cause_tm27_intr() \
+  do { \
+    LEON_Force_interrupt( TEST_INTERRUPT_SOURCE+(Interrupt_nest>>1)); \
+    nop(); \
+    nop(); \
+    nop(); \
+  } while (0)
+
+#define Clear_tm27_intr() \
+  LEON_Clear_interrupt( TEST_INTERRUPT_SOURCE )
+
+#define Lower_tm27_intr() /* empty */
+
+#endif
+
+#endif
-- 
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