linux-kernel - [REPOST PATCH 06/16] tools: arm64: perf_event: Define Cycle counter enable/overflow bits

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 15 Feb 2023 01:07:07 +0000
From:   Raghavendra Rao Ananta <rananta@...gle.com>
To:     Oliver Upton <oupton@...gle.com>,
        Reiji Watanabe <reijiw@...gle.com>,
        Marc Zyngier <maz@...nel.org>,
        Ricardo Koller <ricarkol@...gle.com>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Jing Zhang <jingzhangos@...gle.com>,
        Colton Lewis <coltonlewis@...gle.com>,
        Raghavendra Rao Anata <rananta@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [REPOST PATCH 06/16] tools: arm64: perf_event: Define Cycle counter
 enable/overflow bits

Add the definitions of ARMV8_PMU_CNTOVS_C (Cycle counter overflow
bit) for overflow status registers and ARMV8_PMU_CNTENSET_C (Cycle
counter enable bit) for PMCNTENSET_EL0 register.

Signed-off-by: Raghavendra Rao Ananta <rananta@...gle.com>
---
 tools/arch/arm64/include/asm/perf_event.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/arch/arm64/include/asm/perf_event.h b/tools/arch/arm64/include/asm/perf_event.h
index 97e49a4d4969f..8ce23aabf6fe6 100644
--- a/tools/arch/arm64/include/asm/perf_event.h
+++ b/tools/arch/arm64/include/asm/perf_event.h
@@ -222,9 +222,11 @@
 /*
  * PMOVSR: counters overflow flag status reg
  */
+#define ARMV8_PMU_CNTOVS_C      (1 << 31) /* Cycle counter overflow bit */
 #define	ARMV8_PMU_OVSR_MASK		0xffffffff	/* Mask for writable bits */
 #define	ARMV8_PMU_OVERFLOWED_MASK	ARMV8_PMU_OVSR_MASK
 
+
 /*
  * PMXEVTYPER: Event selection reg
  */
@@ -247,6 +249,11 @@
 #define ARMV8_PMU_USERENR_CR	(1 << 2) /* Cycle counter can be read at EL0 */
 #define ARMV8_PMU_USERENR_ER	(1 << 3) /* Event counter can be read at EL0 */
 
+/*
+ * PMCNTENSET: Count Enable set reg
+ */
+#define ARMV8_PMU_CNTENSET_C    (1 << 31) /* Cycle counter enable bit */
+
 /* PMMIR_EL1.SLOTS mask */
 #define ARMV8_PMU_SLOTS_MASK	0xff
 
-- 
2.39.1.581.gbfd45094c4-goog