From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932267Ab3LDKg0 (ORCPT ); Wed, 4 Dec 2013 05:36:26 -0500 Received: from e28smtp04.in.ibm.com ([122.248.162.4]:56337 "EHLO e28smtp04.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755459Ab3LDKdy (ORCPT ); Wed, 4 Dec 2013 05:33:54 -0500 From: Anshuman Khandual 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 Message-Id: <1386153162-11225-3-git-send-email-khandual@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1386153162-11225-1-git-send-email-khandual@linux.vnet.ibm.com> References: <1386153162-11225-1-git-send-email-khandual@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13120410-5564-0000-0000-00000AF51F80 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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