linux-kernel - [PATCH 5/8] perf,x86: add support for PERF_SAMPLE_PHYS

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Message-Id: <1371824448-7306-6-git-send-email-eranian@google.com>
Date:	Fri, 21 Jun 2013 16:20:45 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	peterz@...radead.org, mingo@...e.hu, ak@...ux.intel.com,
	acme@...hat.com, jolsa@...hat.com, namhyung.kim@....com
Subject: [PATCH 5/8] perf,x86: add support for PERF_SAMPLE_PHYS_ADDR for PEBS-LL

This patch adds support for sampling the physical data address
of Loads/Stores captured by PEBS Load Latency/Precise Store
facility.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 06d02fa..e32a5ab 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -3,6 +3,7 @@
 #include <linux/slab.h>
 
 #include <asm/perf_event.h>
+#include <asm/uaccess.h>
 #include <asm/insn.h>
 
 #include "perf_event.h"
@@ -835,10 +836,14 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
 	else
 		regs.flags &= ~PERF_EFLAGS_EXACT;
 
-	if ((event->attr.sample_type & PERF_SAMPLE_ADDR) &&
+	if ((sample_type & PERF_SAMPLE_ADDR) &&
 		x86_pmu.intel_cap.pebs_format >= 1)
 		data.addr = pebs->dla;
 
+	if ((fll || fst) && (sample_type & PERF_SAMPLE_PHYS_ADDR) &&
+		x86_pmu.intel_cap.pebs_format >= 1)
+		data.phys_addr = uvirt_to_phys_nmi((void *)(pebs->dla));
+
 	if (has_branch_stack(event))
 		data.br_stack = &cpuc->lbr_stack;
 
-- 
1.8.1.2

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