From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Xiaoyao Li <xiaoyao.li@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Sasha Levin <sashal@kernel.org>,
linux-perf-users@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 06/11] perf/x86/intel/pt: Fix mask of num_address_ranges
Date: Mon, 30 Aug 2021 07:59:57 -0400 [thread overview]
Message-ID: <20210830120002.1017700-6-sashal@kernel.org> (raw)
In-Reply-To: <20210830120002.1017700-1-sashal@kernel.org>
From: Xiaoyao Li <xiaoyao.li@intel.com>
[ Upstream commit c53c6b7409f4cd9e542991b53d597fbe2751d7db ]
Per SDM, bit 2:0 of CPUID(0x14,1).EAX[2:0] reports the number of
configurable address ranges for filtering, not bit 1:0.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lkml.kernel.org/r/20210824040622.4081502-1-xiaoyao.li@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/events/intel/pt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index e94af4a54d0d..37129b76135a 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -62,7 +62,7 @@ static struct pt_cap_desc {
PT_CAP(single_range_output, 0, CPUID_ECX, BIT(2)),
PT_CAP(output_subsys, 0, CPUID_ECX, BIT(3)),
PT_CAP(payloads_lip, 0, CPUID_ECX, BIT(31)),
- PT_CAP(num_address_ranges, 1, CPUID_EAX, 0x3),
+ PT_CAP(num_address_ranges, 1, CPUID_EAX, 0x7),
PT_CAP(mtc_periods, 1, CPUID_EAX, 0xffff0000),
PT_CAP(cycle_thresholds, 1, CPUID_EBX, 0xffff),
PT_CAP(psb_periods, 1, CPUID_EBX, 0xffff0000),
--
2.30.2
next prev parent reply other threads:[~2021-08-30 12:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 11:59 [PATCH AUTOSEL 5.10 01/11] gpu: ipu-v3: Fix i.MX IPU-v3 offset calculations for (semi)planar U/V formats Sasha Levin
2021-08-30 11:59 ` [PATCH AUTOSEL 5.10 02/11] reset: reset-zynqmp: Fixed the argument data type Sasha Levin
2021-08-30 11:59 ` [PATCH AUTOSEL 5.10 03/11] qed: Fix the VF msix vectors flow Sasha Levin
2021-08-30 11:59 ` [PATCH AUTOSEL 5.10 04/11] net: macb: Add a NULL check on desc_ptp Sasha Levin
2021-08-30 11:59 ` [PATCH AUTOSEL 5.10 05/11] qede: Fix memset corruption Sasha Levin
2021-08-30 11:59 ` Sasha Levin [this message]
2021-08-30 11:59 ` [PATCH AUTOSEL 5.10 07/11] ceph: fix possible null-pointer dereference in ceph_mdsmap_decode() Sasha Levin
2021-08-30 11:59 ` [PATCH AUTOSEL 5.10 08/11] perf/x86/amd/ibs: Work around erratum #1197 Sasha Levin
2021-08-30 12:00 ` [PATCH AUTOSEL 5.10 09/11] perf/x86/amd/power: Assign pmu.module Sasha Levin
2021-08-30 12:00 ` [PATCH AUTOSEL 5.10 10/11] net: fix NULL pointer reference in cipso_v4_doi_free Sasha Levin
2021-08-30 12:00 ` [PATCH AUTOSEL 5.10 11/11] cryptoloop: add a deprecation warning Sasha Levin
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