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/openrisc/tags/or1ksim/or1ksim-0.4.0rc2/testsuite/test-code-or1k/upcalls
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Rev 121 → Rev 128
/Makefile.in
0,0 → 1,523
# Makefile.in generated by automake 1.11.1 from Makefile.am. |
# @configure_input@ |
|
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, |
# Inc. |
# This Makefile.in is free software; the Free Software Foundation |
# gives unlimited permission to copy and/or distribute it, |
# with or without modifications, as long as this notice is preserved. |
|
# This program is distributed in the hope that it will be useful, |
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without |
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A |
# PARTICULAR PURPOSE. |
|
@SET_MAKE@ |
|
# Makefile.am for or1ksim OR1K test program: upcalls |
|
# Copyright (C) Embecosm Limited, 2010 |
|
# Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> |
|
# This file is part of OpenRISC 1000 Architectural Simulator. |
|
# This program is free software; you can redistribute it and/or modify it |
# under the terms of the GNU General Public License as published by the Free |
# Software Foundation; either version 3 of the License, or (at your option) |
# any later version. |
|
# This program is distributed in the hope that it will be useful, but WITHOUT |
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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|
# You should have received a copy of the GNU General Public License along |
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|
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|
# Basic test |
upcall_basic_SOURCES = upcall-basic.c |
upcall_basic_LDFLAGS = -T$(srcdir)/../default.ld |
upcall_basic_LDADD = ../except/except.lo \ |
../support/libsupport.la |
|
|
# Test for misaligned calls |
upcall_misaligned_SOURCES = upcall-misaligned.c |
upcall_misaligned_LDFLAGS = -T$(srcdir)/../default.ld |
upcall_misaligned_LDADD = ../except/except.lo \ |
../support/libsupport.la |
|
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|
# Tell versions [3.59,3.63) of GNU make to not export all variables. |
# Otherwise a system limit (for SysV at least) may be exceeded. |
.NOEXPORT: |
/upcall-basic.c
0,0 → 1,199
/* upcall-basic.c. Test of Or1ksim basic handling of upcalls |
|
Copyright (C) 2010 Embecosm Limited |
|
Contributors various OpenCores participants |
Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> |
|
This file is part of OpenRISC 1000 Architectural Simulator. |
|
This program is free software; you can redistribute it and/or modify it |
under the terms of the GNU General Public License as published by the Free |
Software Foundation; either version 3 of the License, or (at your option) |
any later version. |
|
This program is distributed in the hope that it will be useful, but WITHOUT |
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
more details. |
|
You should have received a copy of the GNU General Public License along |
with this program. If not, see <http: www.gnu.org/licenses/>. */ |
|
/* ---------------------------------------------------------------------------- |
This code is commented throughout for use with Doxygen. |
--------------------------------------------------------------------------*/ |
|
#include "support.h" |
#include "spr-defs.h" |
#include "board.h" |
|
|
/*!Alignment exception handler defined here. */ |
unsigned long excpt_align; |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Write a memory mapped byte register |
|
@param[in] addr Memory mapped address |
@param[in] value Value to set */ |
/* --------------------------------------------------------------------------*/ |
static void |
setreg8 (unsigned long int addr, |
unsigned char value) |
{ |
*((volatile unsigned char *) addr) = value; |
printf ("Wrote byte at 0x%08lx = 0x%02x.\n", addr, value); |
|
} /* setreg8 () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Write a memory mapped half word register |
|
@param[in] addr Memory mapped address |
@param[in] value Value to set */ |
/* --------------------------------------------------------------------------*/ |
static void |
setreg16 (unsigned long int addr, |
unsigned short int value) |
{ |
*((volatile unsigned short int *) addr) = value; |
printf ("Wrote half word at 0x%08lx = 0x%04x.\n", addr, value); |
|
} /* setreg16 () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Write a memory mapped full word register |
|
@param[in] addr Memory mapped address |
@param[in] value Value to set */ |
/* --------------------------------------------------------------------------*/ |
static void |
setreg32 (unsigned long int addr, |
unsigned long int value) |
{ |
*((volatile unsigned long int *) addr) = value; |
printf ("Wrote full word at 0x%08lx = 0x%08lx.\n", addr, value); |
|
} /* setreg32 () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Read a memory mapped byte register |
|
@param[in] addr Memory mapped address |
|
@return Value read */ |
/* --------------------------------------------------------------------------*/ |
unsigned char |
getreg8 (unsigned long int addr) |
{ |
unsigned char res = *((volatile unsigned char *) addr); |
printf ("Read byte at 0x%08lx = 0x%02x.\n", addr, res); |
return res; |
|
} /* getreg8 () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Read a memory mapped half word register |
|
@param[in] addr Memory mapped address |
|
@return Value read */ |
/* --------------------------------------------------------------------------*/ |
unsigned short int |
getreg16 (unsigned long int addr) |
{ |
unsigned short int res = *((volatile unsigned short int *) addr); |
printf ("Read half word at 0x%08lx = 0x%04x.\n", addr, res); |
return res; |
|
} /* getreg16 () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Read a memory mapped full word register |
|
@param[in] addr Memory mapped address |
|
@return Value read */ |
/* --------------------------------------------------------------------------*/ |
unsigned long int |
getreg32 (unsigned long int addr) |
{ |
unsigned long int res = *((volatile unsigned long int *) addr); |
printf ("Read full word at 0x%08lx = 0x%08lx.\n", addr, res); |
return res; |
|
} /* getreg32 () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*! Exception handler for misalignment. |
|
Notes what has happened. */ |
/* --------------------------------------------------------------------------*/ |
void align_handler (void) |
{ |
printf ("Misaligned access.\n"); |
|
} /* align_handler () */ |
|
|
/* --------------------------------------------------------------------------*/ |
/*!Main program to read and write memory mapped registers |
|
All these calls should be correctly aligned, but we set an handler, just in |
case. |
|
@return The return code from the program (always zero). */ |
/* --------------------------------------------------------------------------*/ |
int |
main () |
{ |
/* Set the exception handler */ |
printf ("Setting alignment exception handler.\n"); |
excpt_align = (unsigned long)align_handler; |
|
/* Write some registers */ |
printf ("Writing registers.\n"); |
|
/* Byte aligned */ |
setreg8 (GENERIC_BASE, 0xde); |
setreg8 (GENERIC_BASE + 1, 0xad); |
setreg8 (GENERIC_BASE + 2, 0xbe); |
setreg8 (GENERIC_BASE + 3, 0xef); |
|
/* Half word aligned */ |
setreg16 (GENERIC_BASE + 4, 0xbaad); |
setreg16 (GENERIC_BASE + 6, 0xf00d); |
|
/* Full word aligned */ |
setreg32 (GENERIC_BASE + 8, 0xcafebabe); |
|
/* Read some registers, but mix up which size from where. */ |
printf ("Reading registers.\n"); |
|
/* Full word aligned */ |
(void)getreg32 (GENERIC_BASE + 0); |
|
/* Byte aligned */ |
(void)getreg8 (GENERIC_BASE + 4); |
(void)getreg8 (GENERIC_BASE + 5); |
(void)getreg8 (GENERIC_BASE + 6); |
(void)getreg8 (GENERIC_BASE + 7); |
|
/* Half word aligned */ |
(void)getreg16 (GENERIC_BASE + 8); |
(void)getreg16 (GENERIC_BASE + 10); |
|
/* All done */ |
printf ("All done.\n"); |
report (0xdeaddead); |
return 0; |
|
} /* main () */ |
upcall-basic.c
Property changes :
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Id
\ No newline at end of property
Index: Makefile.am
===================================================================
--- Makefile.am (nonexistent)
+++ Makefile.am (revision 128)
@@ -0,0 +1,45 @@
+# Makefile.am for or1ksim OR1K test program: upcalls
+
+# Copyright (C) Embecosm Limited, 2010
+
+# Contributor Jeremy Bennett
+
+# This file is part of OpenRISC 1000 Architectural Simulator.
+
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3 of the License, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see . */
+
+# -----------------------------------------------------------------------------
+# This code is commented throughout for use with Doxygen.
+# -----------------------------------------------------------------------------
+
+
+# Test programs for upcalls
+check_PROGRAMS = upcall-basic \
+ upcall-misaligned
+
+# Basic test
+upcall_basic_SOURCES = upcall-basic.c
+
+upcall_basic_LDFLAGS = -T$(srcdir)/../default.ld
+
+upcall_basic_LDADD = ../except/except.lo \
+ ../support/libsupport.la
+
+# Test for misaligned calls
+upcall_misaligned_SOURCES = upcall-misaligned.c
+
+upcall_misaligned_LDFLAGS = -T$(srcdir)/../default.ld
+
+upcall_misaligned_LDADD = ../except/except.lo \
+ ../support/libsupport.la
Makefile.am
Property changes :
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Id
\ No newline at end of property
Index: upcall-misaligned.c
===================================================================
--- upcall-misaligned.c (nonexistent)
+++ upcall-misaligned.c (revision 128)
@@ -0,0 +1,290 @@
+/* upcall-misaligned.c. Test of Or1ksim misaligned handling of upcalls
+
+ Copyright (C) 2010 Embecosm Limited
+
+ Contributors various OpenCores participants
+ Contributor Jeremy Bennett
+
+ This file is part of OpenRISC 1000 Architectural Simulator.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program. If not, see . */
+
+/* ----------------------------------------------------------------------------
+ This code is commented throughout for use with Doxygen.
+ --------------------------------------------------------------------------*/
+
+#include "support.h"
+#include "spr-defs.h"
+#include "board.h"
+
+
+/*!Alignment exception handler defined here. */
+unsigned long excpt_align;
+
+/*!Flag set if we get a misaligned access */
+static int misaligned_p;
+
+/* --------------------------------------------------------------------------*/
+/*!Write a memory mapped byte register
+
+ Report the result, noting if we get a misalignment exception.
+
+ @param[in] addr Memory mapped address
+ @param[in] value Value to set */
+/* --------------------------------------------------------------------------*/
+static void
+setreg8 (unsigned long int addr,
+ unsigned char value)
+{
+ *((volatile unsigned char *) addr) = value;
+
+ if (misaligned_p)
+ {
+ printf ("Writing byte at 0x%08lx: misalignment exception.\n", addr);
+ misaligned_p = 0;
+ }
+ else
+ {
+ printf ("Wrote byte at 0x%08lx = 0x%02x.\n", addr, value);
+ }
+} /* setreg8 () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Write a memory mapped half word register
+
+ Report the result, noting if we get a misalignment exception.
+
+ @param[in] addr Memory mapped address
+ @param[in] value Value to set */
+/* --------------------------------------------------------------------------*/
+static void
+setreg16 (unsigned long int addr,
+ unsigned short int value)
+{
+ *((volatile unsigned short int *) addr) = value;
+
+ if (misaligned_p)
+ {
+ printf ("Writing half word at 0x%08lx: misalignment exception.\n", addr);
+ misaligned_p = 0;
+ }
+ else
+ {
+ printf ("Wrote half word at 0x%08lx = 0x%04x.\n", addr, value);
+ }
+} /* setreg16 () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Write a memory mapped full word register
+
+ Report the result, noting if we get a misalignment exception.
+
+ @param[in] addr Memory mapped address
+ @param[in] value Value to set */
+/* --------------------------------------------------------------------------*/
+static void
+setreg32 (unsigned long int addr,
+ unsigned long int value)
+{
+ *((volatile unsigned long int *) addr) = value;
+
+ if (misaligned_p)
+ {
+ printf ("Writing full word at 0x%08lx: misalignment exception.\n", addr);
+ misaligned_p = 0;
+ }
+ else
+ {
+ printf ("Wrote full word at 0x%08lx = 0x%08lx.\n", addr, value);
+ }
+} /* setreg32 () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Read a memory mapped byte register
+
+ Report the result, noting if we get a misalignment exception.
+
+ @param[in] addr Memory mapped address
+
+ @return Value read */
+/* --------------------------------------------------------------------------*/
+unsigned char
+getreg8 (unsigned long int addr)
+{
+ unsigned char res = *((volatile unsigned char *) addr);
+
+ if (misaligned_p)
+ {
+ printf ("Reading byte at 0x%08lx: misalignment exception.\n", addr);
+ misaligned_p = 0;
+ }
+ else
+ {
+ printf ("Read byte at 0x%08lx = 0x%02x.\n", addr, res);
+ }
+
+ return res;
+
+} /* getreg8 () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Read a memory mapped half word register
+
+ Report the result, noting if we get a misalignment exception.
+
+ @param[in] addr Memory mapped address
+
+ @return Value read */
+/* --------------------------------------------------------------------------*/
+unsigned short int
+getreg16 (unsigned long int addr)
+{
+ unsigned short int res = *((volatile unsigned short int *) addr);
+
+ if (misaligned_p)
+ {
+ printf ("Reading half word at 0x%08lx: misalignment exception.\n", addr);
+ misaligned_p = 0;
+ }
+ else
+ {
+ printf ("Read half word at 0x%08lx = 0x%04x.\n", addr, res);
+ }
+
+ return res;
+
+} /* getreg16 () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Read a memory mapped full word register
+
+ Report the result, noting if we get a misalignment exception.
+
+ @param[in] addr Memory mapped address
+
+ @return Value read */
+/* --------------------------------------------------------------------------*/
+unsigned long int
+getreg32 (unsigned long int addr)
+{
+ unsigned long int res = *((volatile unsigned long int *) addr);
+
+ if (misaligned_p)
+ {
+ printf ("Reading full word at 0x%08lx: misalignment exception.\n", addr);
+ misaligned_p = 0;
+ }
+ else
+ {
+ printf ("Read full word at 0x%08lx = 0x%08lx.\n", addr, res);
+ }
+
+ return res;
+
+} /* getreg32 () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Exception handler for misalignment.
+
+ Set the flag to indicated we have hit an exception.
+
+ We can't just return, since that will give us the instruction that caused
+ the problem in the first place. What we do instead is patch the EPCR SPR.
+
+ This is fine, so long as we didn't trap in a delay slot. The crude response
+ to that then we just exit. */
+/* --------------------------------------------------------------------------*/
+void align_handler (void)
+{
+ misaligned_p = 1;
+
+ unsigned long int iaddr = mfspr (SPR_EPCR_BASE);
+ unsigned long int instr = *(unsigned long int *) iaddr;
+ unsigned char opc = instr >> 26;
+
+ switch (opc)
+ {
+ case 0x00: /* l.j */
+ case 0x01: /* l.jal */
+ case 0x03: /* l.bnf */
+ case 0x04: /* l.bf */
+ case 0x11: /* l.jr */
+ case 0x12: /* l.jalr */
+
+ printf ("Misalignment exception unable to recover from delay slot.\n");
+ exit (1);
+ break;
+
+ default:
+ mtspr (SPR_EPCR_BASE, iaddr + 4); /* Step past */
+ break;
+ }
+} /* align_handler () */
+
+
+/* --------------------------------------------------------------------------*/
+/*!Main program to read and write memory mapped registers
+
+ Some of these are misaligned and should cause the appropriate exception.
+
+ @return The return code from the program (always zero). */
+/* --------------------------------------------------------------------------*/
+int
+main ()
+{
+ /* Set the exception handler, and note that no exceptions have yet
+ happened. */
+ printf ("Setting alignment exception handler.\n");
+ excpt_align = (unsigned long)align_handler;
+ misaligned_p = 0;
+
+ /* Write some registers */
+ printf ("Writing registers.\n");
+
+ setreg8 (GENERIC_BASE, 0xde);
+
+ setreg16 (GENERIC_BASE + 2, 0xdead); /* Aligned */
+ setreg16 (GENERIC_BASE + 5, 0xbeef); /* Unaligned */
+
+ setreg32 (GENERIC_BASE + 8, 0xdeadbeef); /* Aligned */
+ setreg32 (GENERIC_BASE + 13, 0xcafebabe); /* Unaligned */
+ setreg32 (GENERIC_BASE + 18, 0xbaadf00d); /* Unaligned */
+ setreg32 (GENERIC_BASE + 23, 0xfee1babe); /* Unaligned */
+ setreg32 (GENERIC_BASE + 28, 0xbaadbabe); /* Aligned */
+
+ /* Write some registers */
+ printf ("Reading registers.\n");
+
+ (void)getreg8 (GENERIC_BASE);
+
+ (void)getreg16 (GENERIC_BASE + 2); /* Aligned */
+ (void)getreg16 (GENERIC_BASE + 5); /* Unaligned */
+
+ (void)getreg32 (GENERIC_BASE + 8); /* Aligned */
+ (void)getreg32 (GENERIC_BASE + 13); /* Unaligned */
+ (void)getreg32 (GENERIC_BASE + 18); /* Unaligned */
+ (void)getreg32 (GENERIC_BASE + 23); /* Unaligned */
+ (void)getreg32 (GENERIC_BASE + 28); /* Aligned */
+
+ /* We don't actually ever return */
+ report (0xdeaddead);
+ return 0;
+
+} /* main () */
upcall-misaligned.c
Property changes :
Added: svn:eol-style
## -0,0 +1 ##
+native
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Added: svn:keywords
## -0,0 +1 ##
+Id
\ No newline at end of property