From 7c990076419ff4a80999dcc04985688cd5bea5ce Mon Sep 17 00:00:00 2001
From: Greg Menke <gregory.menke@gsfc.nasa.gov>
Date: Thu, 8 Jun 2006 18:03:55 +0000
Subject: B.Robinson MIPS patch

---
 c/src/lib/libcpu/mips/ChangeLog                    |  8 +++++++-
 c/src/lib/libcpu/mips/Makefile.am                  |  3 ++-
 .../libcpu/mips/shared/interrupts/interruptmask.c  | 24 ++++++++++++++++++++++
 .../mips/shared/interrupts/vectorexceptions.c      | 21 ++++++++++---------
 4 files changed, 44 insertions(+), 12 deletions(-)
 create mode 100644 c/src/lib/libcpu/mips/shared/interrupts/interruptmask.c

(limited to 'c')

diff --git a/c/src/lib/libcpu/mips/ChangeLog b/c/src/lib/libcpu/mips/ChangeLog
index 53a7623144..7694c590eb 100644
--- a/c/src/lib/libcpu/mips/ChangeLog
+++ b/c/src/lib/libcpu/mips/ChangeLog
@@ -1,7 +1,13 @@
+2006-06-08	Bruce Robinson <brucer@pmccorp.com>
+
+	* Makefile.am: add interruptmask.c
+	* shared/interrupts/interuptmask.c: TX49 conditional mask computation
+	* shared/interrupts/vectorexceptions.c: Corrections to exception codes 
+	   & descriptions
+
 2006-05-16	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* configure.ac: Use RTEMS_AMPOLISH3.
-
 2006-04-02	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* Makefile.am: Remove bogus CFLAGS_OPTIMIZE_V.
diff --git a/c/src/lib/libcpu/mips/Makefile.am b/c/src/lib/libcpu/mips/Makefile.am
index 7f5a457387..3ae3965672 100644
--- a/c/src/lib/libcpu/mips/Makefile.am
+++ b/c/src/lib/libcpu/mips/Makefile.am
@@ -41,7 +41,8 @@ endif
 
 noinst_PROGRAMS += shared/interrupts.rel
 shared_interrupts_rel_SOURCES = shared/interrupts/installisrentries.c \
-    shared/interrupts/vectorexceptions.c shared/interrupts/isr_entries.S
+    shared/interrupts/vectorexceptions.c shared/interrupts/interruptmask.c \
+    shared/interrupts/isr_entries.S
 shared_interrupts_rel_CPPFLAGS = $(AM_CPPFLAGS) $(interrupts_CPPFLAGS)
 shared_interrupts_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
 
diff --git a/c/src/lib/libcpu/mips/shared/interrupts/interruptmask.c b/c/src/lib/libcpu/mips/shared/interrupts/interruptmask.c
new file mode 100644
index 0000000000..27be57b46b
--- /dev/null
+++ b/c/src/lib/libcpu/mips/shared/interrupts/interruptmask.c
@@ -0,0 +1,24 @@
+/*
+ *  $Id: interruptmask.c,v 1.0 2006/04/04 05:18:49
+ */
+
+#include <rtems.h>
+
+/*
+ *  This function returns a mask value which is used to select the bits
+ *  in the processor status register that can be set to enable interrupts.
+ *  The mask value should not include the 2 software interrupt enable bits.
+ */
+
+uint32_t mips_interrupt_mask( void )
+{
+	uint32_t interrupt_mask;
+
+#ifdef TX49
+	interrupt_mask = 0x00000400;			/* Toshiba TX49 processors have a non-standard interrupt mask */
+#else
+	interrupt_mask = 0x0000fc00;
+#endif
+
+	return(interrupt_mask);
+}
diff --git a/c/src/lib/libcpu/mips/shared/interrupts/vectorexceptions.c b/c/src/lib/libcpu/mips/shared/interrupts/vectorexceptions.c
index 2781b8dfb9..5cec3e0298 100644
--- a/c/src/lib/libcpu/mips/shared/interrupts/vectorexceptions.c
+++ b/c/src/lib/libcpu/mips/shared/interrupts/vectorexceptions.c
@@ -24,17 +24,18 @@ static const char *cause_strings[32] =
   /*  5 */ "Address Store",
   /*  6 */ "Instruction Bus Error",
   /*  7 */ "Data Bus Error",
-  /*  9 */ "Syscall",
-  /* 10 */ "Breakpoint",
-  /* 11 */ "Reserved Instruction",
-  /* 12 */ "Coprocessor Unuseable",
-  /* 13 */ "Overflow",
-  /* 14 */ "Trap",
-  /* 15 */ "Instruction Virtual Coherency Error",
-  /* 16 */ "FP Exception",
+  /*  8 */ "Syscall",
+  /*  9 */ "Breakpoint",
+  /* 10 */ "Reserved Instruction",
+  /* 11 */ "Coprocessor Unuseable",
+  /* 12 */ "Overflow",
+  /* 13 */ "Trap",
+  /* 14 */ "Instruction Virtual Coherency Error",
+  /* 15 */ "FP Exception",
+  /* 16 */ "Reserved 16",
   /* 17 */ "Reserved 17",
-  /* 18 */ "Reserved 17",
-  /* 19 */ "Reserved 17",
+  /* 18 */ "Reserved 18",
+  /* 19 */ "Reserved 19",
   /* 20 */ "Reserved 20",
   /* 21 */ "Reserved 21",
   /* 22 */ "Reserved 22",
-- 
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