[Xen-changelog] [xen-unstable] Provides hooks for perfc print/reset/gather.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 6289234304f12912c8ab08aa262c8958538eb8cf
# Parent  7924b6bd728a3192ed5ff1792499273862a183e5
Provides hooks for perfc print/reset/gather.

These arch-neutral hooks allow architectures to report hardware counters.

Signed-off-by: Tristan Gingold <tristan.gingold@xxxxxxxx>
---
 xen/common/perfc.c              |   12 ++++++------
 xen/include/asm-ia64/perfc.h    |   16 ++++++++++++++++
 xen/include/asm-powerpc/perfc.h |   16 ++++++++++++++++
 xen/include/asm-x86/perfc.h     |   23 +++++++++++++++++++++++
 4 files changed, 61 insertions(+), 6 deletions(-)

diff -r 7924b6bd728a -r 6289234304f1 xen/common/perfc.c
--- a/xen/common/perfc.c        Mon Aug 07 15:53:06 2006 +0100
+++ b/xen/common/perfc.c        Mon Aug 07 15:55:39 2006 +0100
@@ -8,6 +8,7 @@
 #include <xen/mm.h>
 #include <xen/guest_access.h>
 #include <public/dom0_ops.h>
+#include <asm/perfc.h>
 
 #undef  PERFCOUNTER
 #undef  PERFCOUNTER_CPU
@@ -89,9 +90,7 @@ void perfc_printall(unsigned char key)
         printk("\n");
     }
 
-#ifdef PERF_ARRAYS
-    ptwr_eip_stat_print();
-#endif
+    arch_perfc_printall();
 }
 
 void perfc_reset(unsigned char key)
@@ -130,9 +129,7 @@ void perfc_reset(unsigned char key)
         }
     }
 
-#ifdef PERF_ARRAYS
-    ptwr_eip_stat_reset();
-#endif
+    arch_perfc_reset ();
 }
 
 static dom0_perfc_desc_t perfc_d[NR_PERFCTRS];
@@ -180,6 +177,9 @@ static int perfc_copy_info(XEN_GUEST_HAN
     }
     if (perfc_vals == NULL)
         return -ENOMEM;
+
+    /* Architecture may fill counters from hardware.  */
+    arch_perfc_gather();
 
     /* We gather the counts together every time. */
     for ( i = 0; i < NR_PERFCTRS; i++ )
diff -r 7924b6bd728a -r 6289234304f1 xen/include/asm-ia64/perfc.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/asm-ia64/perfc.h      Mon Aug 07 15:55:39 2006 +0100
@@ -0,0 +1,16 @@
+#ifndef __ASM_PERFC_H__
+#define __ASM_PERFC_H__
+
+static inline void arch_perfc_printall (void)
+{
+}
+
+static inline void arch_perfc_reset (void)
+{
+}
+
+static inline void arch_perfc_gather (void)
+{
+}
+
+#endif
diff -r 7924b6bd728a -r 6289234304f1 xen/include/asm-powerpc/perfc.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/asm-powerpc/perfc.h   Mon Aug 07 15:55:39 2006 +0100
@@ -0,0 +1,16 @@
+#ifndef __ASM_PERFC_H__
+#define __ASM_PERFC_H__
+
+static inline void arch_perfc_printall (void)
+{
+}
+
+static inline void arch_perfc_reset (void)
+{
+}
+
+static inline void arch_perfc_gather (void)
+{
+}
+
+#endif
diff -r 7924b6bd728a -r 6289234304f1 xen/include/asm-x86/perfc.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/asm-x86/perfc.h       Mon Aug 07 15:55:39 2006 +0100
@@ -0,0 +1,23 @@
+#ifndef __ASM_PERFC_H__
+#define __ASM_PERFC_H__
+#include <asm/mm.h>
+
+static inline void arch_perfc_printall (void)
+{
+#ifdef PERF_ARRAYS
+    ptwr_eip_stat_print();
+#endif
+}
+
+static inline void arch_perfc_reset (void)
+{
+#ifdef PERF_ARRAYS
+    ptwr_eip_stat_reset();
+#endif
+}
+
+static inline void arch_perfc_gather (void)
+{
+}
+
+#endif

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