* timer support for the SGI Altix machines

This commit was SVN r6974.

opal/mca/timer/altix/Makefile.am

@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+include $(top_srcdir)/config/Makefile.options
+
+noinst_LTLIBRARIES	= libmca_timer_altix.la
+
+libmca_timer_altix_la_SOURCES = \
+			timer_altix.h \
+			timer_altix_component.c

opal/mca/timer/altix/configure.m4

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+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+AC_DEFUN([MCA_timer_altix_COMPILE_MODE], [
+    AC_MSG_CHECKING([for MCA component $2:$3 compile mode])
+    $4="static"
+    AC_MSG_RESULT([$$4])
+])
+
+
+# MCA_timer_altix_CONFIG(action-if-can-compile, 
+#                        [action-if-cant-compile])
+# ------------------------------------------------
+AC_DEFUN([MCA_timer_altix_CONFIG],[
+    AC_ARG_WITH([timer],
+        [AC_HELP_STRING([--with-timer=TYPE],
+                        [Build high resolution timer component TYPE])])
+
+    AS_IF([test "$with_timer" = "altix"],
+          [timer_altix_happy="yes"
+           timer_altix_should_use=1],
+          [timer_altix_should_use=0
+           AS_IF([test "$with_timer" = ""],
+                 [timer_altix_happy="yes"],
+                 [timer_altix_happy="no"])])
+
+    AS_IF([test "$timer_altix_happy" = "yes"],
+          [AC_CHECK_HEADER([sn/mmtimer.h],
+			   [timer_altix_happy="yes"],
+			   [timer_altix_happy="no"])])
+
+    AS_IF([test "$timer_altix_happy" = "yes"],
+          [AC_CHECK_HEADERS([sys/ioctl.h sys/mman.h])])
+
+    AS_IF([test "$timer_altix_happy" = "yes"],
+          [AC_CACHE_CHECK([if MM timer can be opened],
+           	          [ompi_cv_mm_timer_mmap],
+                          [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sn/mmtimer.h>
+], [
+    int fd;
+    fd = open(MMTIMER_FULLNAME, O_RDONLY);
+    if (-1 ==fd) return 1;])],
+                                             [ompi_cv_mm_timer_mmap="yes"],
+			                     [ompi_cv_mm_timer_mmap="no"])])
+           AS_IF([test "$ompi_cv_mm_timer_mmap" = "yes"],
+	         [timer_altix_happy="yes"],
+                 [timer_altix_happy="no"])])
+
+    AS_IF([test "$timer_altix_happy" = "no" -a \
+                "$timer_altix_should_use" = "1"],
+          [AC_MSG_ERROR([Altix timer requested but not available.  Aborting.])])
+
+    AS_IF([test "$timer_altix_happy" = "yes"], 
+          [timer_base_include="altix/timer_altix.h"
+           $1], 
+          [$2])
+])

opal/mca/timer/altix/configure.params

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+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# Specific to this module
+
+PARAM_CONFIG_PRIORITY=30
+PARAM_CONFIG_FILES="Makefile"

opal/mca/timer/altix/timer_altix.h

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+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#ifndef OPAL_MCA_TIMER_ALTIX_TIMER_ALTIX_H
+#define OPAL_MCA_TIMER_ALTIX_TIMER_ALTIX_H
+
+#include <opal/include/sys/timer.h>
+
+extern opal_timer_t opal_timer_altix_freq;
+extern opal_timer_t opal_timer_altix_usec_conv;
+extern volatile unsigned long *opal_timer_altix_mmdev_timer_addr;
+
+static inline opal_timer_t
+opal_timer_base_get_cycles(void)
+{
+    return (*opal_timer_altix_mmdev_timer_addr);
+}
+
+
+static inline opal_timer_t
+opal_timer_base_get_usec(void)
+{
+    return opal_timer_base_get_cycles() / opal_timer_altix_usec_conv;
+}    
+
+
+static inline opal_timer_t
+opal_timer_base_get_freq(void)
+{
+    return opal_timer_altix_freq;
+}
+
+
+#define OPAL_TIMER_CYCLE_NATIVE 1
+#define OPAL_TIMER_CYCLE_SUPPORTED 1
+#define OPAL_TIMER_USEC_NATIVE 0
+#define OPAL_TIMER_USEC_SUPPORTED 1
+
+#endif

opal/mca/timer/altix/timer_altix_component.c

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+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sn/mmtimer.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "opal/mca/timer/timer.h"
+#include "opal/mca/timer/altix/timer_altix.h"
+#include "opal/include/constants.h"
+
+opal_timer_t opal_timer_altix_freq;
+opal_timer_t opal_timer_altix_usec_conv;
+volatile unsigned long *opal_timer_altix_mmdev_timer_addr;
+static unsigned long *mmdev_map;
+
+static int opal_timer_altix_open(void);
+static int opal_timer_altix_close(void);
+
+const opal_timer_base_component_1_0_0_t mca_timer_altix_component = {
+    /* First, the mca_component_t struct containing meta information
+       about the component itself */
+    {
+        /* Indicate that we are a timer v1.0.0 component (which also
+           implies a specific MCA version) */
+        OPAL_TIMER_BASE_VERSION_1_0_0,
+
+        /* Component name and version */
+        "altix",
+        OPAL_MAJOR_VERSION,
+        OPAL_MINOR_VERSION,
+        OPAL_RELEASE_VERSION,
+
+        /* Component open and close functions */
+        opal_timer_altix_open,
+	opal_timer_altix_close
+    },
+
+    /* Next the MCA v1.0.0 component meta data */
+    {
+        /* Whether the component is checkpointable or not */
+        true
+    },
+};
+
+
+static int
+opal_timer_altix_open(void)
+{
+    int fd, ret;
+    unsigned long val;
+    long offset;
+
+    fd = open(MMTIMER_FULLNAME, O_RDONLY);
+    if (fd < 0) return OPAL_ERR_NOT_FOUND;
+
+    /* make sure we can map the timer */
+    ret = ioctl(fd, MMTIMER_MMAPAVAIL, 0);
+    if (1 != ret) return OPAL_ERR_NOT_SUPPORTED;
+
+    /* find the frequency */
+    ret = ioctl(fd, MMTIMER_GETFREQ, &val);
+    if (ret == -ENOSYS) return OPAL_ERR_NOT_SUPPORTED;
+    opal_timer_altix_freq = val;
+    opal_timer_altix_usec_conv = opal_timer_altix_freq / 1000000;
+
+    /* find the address of the counter */
+    ret = ioctl(fd, MMTIMER_GETOFFSET, 0);
+    if (ret == -ENOSYS) return OPAL_ERR_NOT_SUPPORTED;
+    offset = ret;
+
+    mmdev_map = mmap(0, getpagesize(), PROT_READ, MAP_SHARED, fd, 0);
+    if (NULL == mmdev_map) return OPAL_ERR_NOT_SUPPORTED;
+    opal_timer_altix_mmdev_timer_addr = mmdev_map + offset;
+
+    return OPAL_SUCCESS;
+}
+
+
+static int
+opal_timer_altix_close(void)
+{
+    if (NULL != mmdev_map) {
+        munmap(mmdev_map, getpagesize());
+    }
+
+    return OPAL_SUCCESS;
+}