ARC: perf: Enable generic software events

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/kernel/unaligned.c b/arch/arc/kernel/unaligned.c
index 7ff5b5c..74db59b 100644 (file)
--- a/arch/arc/kernel/unaligned.c
+++ b/arch/arc/kernel/unaligned.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/perf_event.h>
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <asm/disasm.h>
@@ -253,6 +254,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
                }
        }
 
+       perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, address);
        return 0;
 
 fault:

diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 563cb27..6a2e006 100644 (file)
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -14,6 +14,7 @@
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
+#include <linux/perf_event.h>
 #include <asm/pgalloc.h>
 #include <asm/mmu.h>
 
@@ -139,13 +140,20 @@ good_area:
                        return;
        }
 
+       perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
+
        if (likely(!(fault & VM_FAULT_ERROR))) {
                if (flags & FAULT_FLAG_ALLOW_RETRY) {
                        /* To avoid updating stats twice for retry case */
-                       if (fault & VM_FAULT_MAJOR)
+                       if (fault & VM_FAULT_MAJOR) {
                                tsk->maj_flt++;
-                       else
+                               perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,
+                                             regs, address);
+                       } else {
                                tsk->min_flt++;
+                               perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1,
+                                             regs, address);
+                       }
 
                        if (fault & VM_FAULT_RETRY) {
                                flags &= ~FAULT_FLAG_ALLOW_RETRY;