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[66.90.144.107]) by smtp.googlemail.com with ESMTPSA id t26-20020a0568080b3a00b003434b221a17sm5000231oij.52.2022.08.25.11.08.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Aug 2022 11:08:06 -0700 (PDT) From: Rob Herring Date: Thu, 25 Aug 2022 13:08:00 -0500 Subject: [PATCH RFC v1 1/3] perf: arm_spe: Support new SPEv1.2/v8.7 'not taken' event MIME-Version: 1.0 Message-Id: <20220825-arm-spe-v8-7-v1-1-c75b8d92e692@kernel.org> References: <20220825-arm-spe-v8-7-v1-0-c75b8d92e692@kernel.org> In-Reply-To: <20220825-arm-spe-v8-7-v1-0-c75b8d92e692@kernel.org> To: Alexander Shishkin , Ingo Molnar , Catalin Marinas , Peter Zijlstra , Mark Rutland , Will Deacon , Jiri Olsa , Namhyung Kim , Arnaldo Carvalho de Melo Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org X-Mailer: b4 0.10.0-dev X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220825_110810_182688_4D997B93 X-CRM114-Status: GOOD ( 10.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Arm SPEv1.2 (Armv8.7/v9.2) adds a new event, 'not taken', in bit 6 of the PMSEVFR_EL1 register. Update arm_spe_pmsevfr_res0() to support the additional event. Signed-off-by: Rob Herring diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 7c71358d44c4..57904c11aece 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -312,6 +312,8 @@ BIT_ULL(6) | BIT_ULL(4) | BIT_ULL(2) | BIT_ULL(0)) #define SYS_PMSEVFR_EL1_RES0_8_3 \ (SYS_PMSEVFR_EL1_RES0_8_2 & ~(BIT_ULL(18) | BIT_ULL(17) | BIT_ULL(11))) +#define SYS_PMSEVFR_EL1_RES0_8_7 \ + (SYS_PMSEVFR_EL1_RES0_8_3 & ~BIT_ULL(6)) #define SYS_PMSLATFR_EL1 sys_reg(3, 0, 9, 9, 6) #define SYS_PMSLATFR_EL1_MINLAT_SHIFT 0 @@ -847,6 +849,7 @@ #define ID_AA64DFR0_PMSVER_8_2 0x1 #define ID_AA64DFR0_PMSVER_8_3 0x2 +#define ID_AA64DFR0_PMSVER_8_7 0x3 #define ID_DFR0_PERFMON_SHIFT 24 diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c index b65a7d9640e1..a75b03b5c8f9 100644 --- a/drivers/perf/arm_spe_pmu.c +++ b/drivers/perf/arm_spe_pmu.c @@ -677,9 +677,11 @@ static u64 arm_spe_pmsevfr_res0(u16 pmsver) case ID_AA64DFR0_PMSVER_8_2: return SYS_PMSEVFR_EL1_RES0_8_2; case ID_AA64DFR0_PMSVER_8_3: + return SYS_PMSEVFR_EL1_RES0_8_3; + case ID_AA64DFR0_PMSVER_8_7: /* Return the highest version we support in default */ default: - return SYS_PMSEVFR_EL1_RES0_8_3; + return SYS_PMSEVFR_EL1_RES0_8_7; } } -- b4 0.10.0-dev _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel