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From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Cc: michael@ellerman.id.au, mikey@neuling.org,
	sukadev@linux.vnet.ibm.com, eranian@google.com,
	acme@ghostprotocols.net, ak@linux.intel.com, mingo@kernel.org
Subject: [PATCH V4 02/10] powerpc, perf: Enable conditional branch filter for POWER8
Date: Wed,  4 Dec 2013 16:02:34 +0530	[thread overview]
Message-ID: <1386153162-11225-3-git-send-email-khandual@linux.vnet.ibm.com> (raw)
In-Reply-To: <1386153162-11225-1-git-send-email-khandual@linux.vnet.ibm.com>

Enables conditional branch filter support for POWER8
utilizing MMCRA register based filter and also invalidates
any BHRB branch filter combination.

Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
---
 arch/powerpc/perf/power8-pmu.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index a3f7abd..e88b9cb 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -586,6 +586,16 @@ static u64 power8_bhrb_filter_map(u64 branch_sample_type)
 		return pmu_bhrb_filter;
 	}
 
+	if (branch_sample_type & PERF_SAMPLE_BRANCH_COND) {
+		pmu_bhrb_filter |= POWER8_MMCRA_IFM3;
+		return pmu_bhrb_filter;
+	}
+
+	/* PMU does not support ANY combination of HW BHRB filters */
+	if ((branch_sample_type & PERF_SAMPLE_BRANCH_ANY_CALL) &&
+			(branch_sample_type & PERF_SAMPLE_BRANCH_COND))
+		return -1;
+
 	/* Every thing else is unsupported */
 	return -1;
 }
-- 
1.7.11.7


WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Cc: mikey@neuling.org, ak@linux.intel.com, eranian@google.com,
	michael@ellerman.id.au, acme@ghostprotocols.net,
	sukadev@linux.vnet.ibm.com, mingo@kernel.org
Subject: [PATCH V4 02/10] powerpc, perf: Enable conditional branch filter for POWER8
Date: Wed,  4 Dec 2013 16:02:34 +0530	[thread overview]
Message-ID: <1386153162-11225-3-git-send-email-khandual@linux.vnet.ibm.com> (raw)
In-Reply-To: <1386153162-11225-1-git-send-email-khandual@linux.vnet.ibm.com>

Enables conditional branch filter support for POWER8
utilizing MMCRA register based filter and also invalidates
any BHRB branch filter combination.

Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
---
 arch/powerpc/perf/power8-pmu.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index a3f7abd..e88b9cb 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -586,6 +586,16 @@ static u64 power8_bhrb_filter_map(u64 branch_sample_type)
 		return pmu_bhrb_filter;
 	}
 
+	if (branch_sample_type & PERF_SAMPLE_BRANCH_COND) {
+		pmu_bhrb_filter |= POWER8_MMCRA_IFM3;
+		return pmu_bhrb_filter;
+	}
+
+	/* PMU does not support ANY combination of HW BHRB filters */
+	if ((branch_sample_type & PERF_SAMPLE_BRANCH_ANY_CALL) &&
+			(branch_sample_type & PERF_SAMPLE_BRANCH_COND))
+		return -1;
+
 	/* Every thing else is unsupported */
 	return -1;
 }
-- 
1.7.11.7

  parent reply	other threads:[~2013-12-04 10:36 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-04 10:32 [PATCH V4 00/10] perf: New conditional branch filter Anshuman Khandual
2013-12-04 10:32 ` Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 01/10] perf: Add PERF_SAMPLE_BRANCH_COND Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-04 10:32 ` Anshuman Khandual [this message]
2013-12-04 10:32   ` [PATCH V4 02/10] powerpc, perf: Enable conditional branch filter for POWER8 Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 03/10] perf, tool: Conditional branch filter 'cond' added to perf record Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 04/10] x86, perf: Add conditional branch filtering support Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-06 16:46   ` Andi Kleen
2013-12-06 16:46     ` Andi Kleen
2013-12-04 10:32 ` [PATCH V4 05/10] perf, documentation: Description for conditional branch filter Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 06/10] powerpc, perf: Change the name of HW PMU branch filter tracking variable Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 07/10] powerpc, lib: Add new branch instruction analysis support functions Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-09  6:21   ` Michael Ellerman
2013-12-10  6:09     ` Anshuman Khandual
2013-12-10  6:09       ` Anshuman Khandual
2013-12-20 10:06       ` Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 08/10] powerpc, perf: Enable SW filtering in branch stack sampling framework Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-09  6:21   ` Michael Ellerman
2013-12-10  5:57     ` Anshuman Khandual
2013-12-10  5:57       ` Anshuman Khandual
2013-12-12  8:45       ` Anshuman Khandual
2013-12-13  2:47         ` Michael Ellerman
2013-12-20 11:01     ` Anshuman Khandual
2013-12-20 11:01       ` Anshuman Khandual
2013-12-24  3:29       ` Michael Ellerman
2013-12-24  3:29         ` Michael Ellerman
2013-12-24  3:50         ` Anshuman Khandual
2013-12-24  3:50           ` Anshuman Khandual
2013-12-24  4:35           ` Michael Ellerman
2013-12-24  4:35             ` Michael Ellerman
2013-12-04 10:32 ` [PATCH V4 09/10] power8, perf: Change BHRB branch filter configuration Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-09  6:21   ` Michael Ellerman
2013-12-13  8:20     ` Anshuman Khandual
2013-12-13  8:20       ` Anshuman Khandual
2013-12-18  0:08       ` Michael Ellerman
2013-12-18  0:08         ` Michael Ellerman
2013-12-18  3:55         ` Anshuman Khandual
2013-12-18  3:55           ` Anshuman Khandual
2013-12-04 10:32 ` [PATCH V4 10/10] powerpc, perf: Cleanup SW branch filter list look up Anshuman Khandual
2013-12-04 10:32   ` Anshuman Khandual
2013-12-09  6:21   ` Michael Ellerman
2013-12-20 11:06     ` Anshuman Khandual
2013-12-20 11:06       ` Anshuman Khandual
2013-12-05  4:47 ` [PATCH V4 00/10] perf: New conditional branch filter Michael Ellerman
2013-12-05  4:47   ` Michael Ellerman
2013-12-06 13:18   ` Arnaldo Carvalho de Melo
2013-12-06 13:18     ` Arnaldo Carvalho de Melo
2013-12-09  0:41     ` Michael Ellerman
2013-12-09  0:41       ` Michael Ellerman

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