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| author | Vineet Gupta <vgupta@synopsys.com> | 2014-10-02 09:00:42 +0200 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-02-27 05:45:01 +0100 |
| commit | ceed97ab4ff76cb5b1d616a810e941f8837dc440 (patch) | |
| tree | 0cd12cc2c53c6e73bbfef84bf430b0705495accb /arch/arc/mm | |
| parent | ARC: Make arc_unwind_core accessible externally (diff) | |
| download | linux-ceed97ab4ff76cb5b1d616a810e941f8837dc440.tar.xz linux-ceed97ab4ff76cb5b1d616a810e941f8837dc440.zip | |
ARC: perf: Enable generic software events
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/mm')
| -rw-r--r-- | arch/arc/mm/fault.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c index 563cb27e37f5..6a2e006cbcce 100644 --- 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; |