From: Andrew Murray <andrew.murray@arm.com> To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Richard Henderson <rth@twiddle.net>, Ivan Kokshaysky <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Thomas Gleixner <tglx@linutronix.de>, Borislav Petkov <bp@alien8.de>, Russell King <linux@armlinux.org.uk>, suzuki.poulose@arm.com, robin.murphy@arm.com, Michael Ellerman <mpe@ellerman.id.au> Cc: x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org Subject: [PATCH v4 07/13] drivers/perf: perf/core: use PERF_PMU_CAP_NO_EXCLUDE for exclude incapable PMUs Date: Mon, 7 Jan 2019 16:27:24 +0000 [thread overview] Message-ID: <1546878450-20341-8-git-send-email-andrew.murray@arm.com> (raw) In-Reply-To: <1546878450-20341-1-git-send-email-andrew.murray@arm.com> For drivers that do not support context exclusion let's advertise the PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will prevent us from handling events where any exclusion flags are set. Let's also remove the now unnecessary check for exclusion flags. Signed-off-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> --- drivers/perf/arm-cci.c | 10 +--------- drivers/perf/arm-ccn.c | 6 ++---- drivers/perf/arm_dsu_pmu.c | 9 ++------- drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 1 + drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 1 + drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 1 + drivers/perf/hisilicon/hisi_uncore_pmu.c | 9 --------- 7 files changed, 8 insertions(+), 29 deletions(-) diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c index 1bfeb16..bfd03e0 100644 --- a/drivers/perf/arm-cci.c +++ b/drivers/perf/arm-cci.c @@ -1327,15 +1327,6 @@ static int cci_pmu_event_init(struct perf_event *event) if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) return -EOPNOTSUPP; - /* We have no filtering of any kind */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest) - return -EINVAL; - /* * Following the example set by other "uncore" PMUs, we accept any CPU * and rewrite its affinity dynamically rather than having perf core @@ -1433,6 +1424,7 @@ static int cci_pmu_init(struct cci_pmu *cci_pmu, struct platform_device *pdev) .stop = cci_pmu_stop, .read = pmu_read, .attr_groups = pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; cci_pmu->plat_device = pdev; diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c index 7dd850e..2ae7602 100644 --- a/drivers/perf/arm-ccn.c +++ b/drivers/perf/arm-ccn.c @@ -741,10 +741,7 @@ static int arm_ccn_pmu_event_init(struct perf_event *event) return -EOPNOTSUPP; } - if (has_branch_stack(event) || event->attr.exclude_user || - event->attr.exclude_kernel || event->attr.exclude_hv || - event->attr.exclude_idle || event->attr.exclude_host || - event->attr.exclude_guest) { + if (has_branch_stack(event)) { dev_dbg(ccn->dev, "Can't exclude execution levels!\n"); return -EINVAL; } @@ -1290,6 +1287,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn) .read = arm_ccn_pmu_event_read, .pmu_enable = arm_ccn_pmu_enable, .pmu_disable = arm_ccn_pmu_disable, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; /* No overflow interrupt? Have to use a timer instead. */ diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c index 660cb8a..5851de5 100644 --- a/drivers/perf/arm_dsu_pmu.c +++ b/drivers/perf/arm_dsu_pmu.c @@ -562,13 +562,7 @@ static int dsu_pmu_event_init(struct perf_event *event) return -EINVAL; } - if (has_branch_stack(event) || - event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest) { + if (has_branch_stack(event)) { dev_dbg(dsu_pmu->pmu.dev, "Can't support filtering\n"); return -EINVAL; } @@ -735,6 +729,7 @@ static int dsu_pmu_device_probe(struct platform_device *pdev) .read = dsu_pmu_read, .attr_groups = dsu_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; rc = perf_pmu_register(&dsu_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c index 69372e2..0eba947 100644 --- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c @@ -396,6 +396,7 @@ static int hisi_ddrc_pmu_probe(struct platform_device *pdev) .stop = hisi_uncore_pmu_stop, .read = hisi_uncore_pmu_read, .attr_groups = hisi_ddrc_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; ret = perf_pmu_register(&ddrc_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c index 443906e..2553a84 100644 --- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c @@ -407,6 +407,7 @@ static int hisi_hha_pmu_probe(struct platform_device *pdev) .stop = hisi_uncore_pmu_stop, .read = hisi_uncore_pmu_read, .attr_groups = hisi_hha_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; ret = perf_pmu_register(&hha_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c index 0bde5d9..cf1cc34 100644 --- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c @@ -397,6 +397,7 @@ static int hisi_l3c_pmu_probe(struct platform_device *pdev) .stop = hisi_uncore_pmu_stop, .read = hisi_uncore_pmu_read, .attr_groups = hisi_l3c_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; ret = perf_pmu_register(&l3c_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 9efd241..f028cbc 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -142,15 +142,6 @@ int hisi_uncore_pmu_event_init(struct perf_event *event) if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) return -EOPNOTSUPP; - /* counters do not have these bits */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_host || - event->attr.exclude_guest || - event->attr.exclude_hv || - event->attr.exclude_idle) - return -EINVAL; - /* * The uncore counters not specific to any CPU, so cannot * support per-task -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Murray <andrew.murray@arm.com> To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Richard Henderson <rth@twiddle.net>, Ivan Kokshaysky <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Thomas Gleixner <tglx@linutronix.de>, Borislav Petkov <bp@alien8.de>, Russell King <linux@armlinux.org.uk>, suzuki.poulose@arm.com, robin.murphy@arm.com, Michael Ellerman <mpe@ellerman.id.au> Cc: x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org Subject: [PATCH v4 07/13] drivers/perf: perf/core: use PERF_PMU_CAP_NO_EXCLUDE for exclude incapable PMUs Date: Mon, 7 Jan 2019 16:27:24 +0000 [thread overview] Message-ID: <1546878450-20341-8-git-send-email-andrew.murray@arm.com> (raw) In-Reply-To: <1546878450-20341-1-git-send-email-andrew.murray@arm.com> For drivers that do not support context exclusion let's advertise the PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will prevent us from handling events where any exclusion flags are set. Let's also remove the now unnecessary check for exclusion flags. Signed-off-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> --- drivers/perf/arm-cci.c | 10 +--------- drivers/perf/arm-ccn.c | 6 ++---- drivers/perf/arm_dsu_pmu.c | 9 ++------- drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 1 + drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 1 + drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 1 + drivers/perf/hisilicon/hisi_uncore_pmu.c | 9 --------- 7 files changed, 8 insertions(+), 29 deletions(-) diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c index 1bfeb16..bfd03e0 100644 --- a/drivers/perf/arm-cci.c +++ b/drivers/perf/arm-cci.c @@ -1327,15 +1327,6 @@ static int cci_pmu_event_init(struct perf_event *event) if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) return -EOPNOTSUPP; - /* We have no filtering of any kind */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest) - return -EINVAL; - /* * Following the example set by other "uncore" PMUs, we accept any CPU * and rewrite its affinity dynamically rather than having perf core @@ -1433,6 +1424,7 @@ static int cci_pmu_init(struct cci_pmu *cci_pmu, struct platform_device *pdev) .stop = cci_pmu_stop, .read = pmu_read, .attr_groups = pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; cci_pmu->plat_device = pdev; diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c index 7dd850e..2ae7602 100644 --- a/drivers/perf/arm-ccn.c +++ b/drivers/perf/arm-ccn.c @@ -741,10 +741,7 @@ static int arm_ccn_pmu_event_init(struct perf_event *event) return -EOPNOTSUPP; } - if (has_branch_stack(event) || event->attr.exclude_user || - event->attr.exclude_kernel || event->attr.exclude_hv || - event->attr.exclude_idle || event->attr.exclude_host || - event->attr.exclude_guest) { + if (has_branch_stack(event)) { dev_dbg(ccn->dev, "Can't exclude execution levels!\n"); return -EINVAL; } @@ -1290,6 +1287,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn) .read = arm_ccn_pmu_event_read, .pmu_enable = arm_ccn_pmu_enable, .pmu_disable = arm_ccn_pmu_disable, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; /* No overflow interrupt? Have to use a timer instead. */ diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c index 660cb8a..5851de5 100644 --- a/drivers/perf/arm_dsu_pmu.c +++ b/drivers/perf/arm_dsu_pmu.c @@ -562,13 +562,7 @@ static int dsu_pmu_event_init(struct perf_event *event) return -EINVAL; } - if (has_branch_stack(event) || - event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest) { + if (has_branch_stack(event)) { dev_dbg(dsu_pmu->pmu.dev, "Can't support filtering\n"); return -EINVAL; } @@ -735,6 +729,7 @@ static int dsu_pmu_device_probe(struct platform_device *pdev) .read = dsu_pmu_read, .attr_groups = dsu_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; rc = perf_pmu_register(&dsu_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c index 69372e2..0eba947 100644 --- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c @@ -396,6 +396,7 @@ static int hisi_ddrc_pmu_probe(struct platform_device *pdev) .stop = hisi_uncore_pmu_stop, .read = hisi_uncore_pmu_read, .attr_groups = hisi_ddrc_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; ret = perf_pmu_register(&ddrc_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c index 443906e..2553a84 100644 --- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c @@ -407,6 +407,7 @@ static int hisi_hha_pmu_probe(struct platform_device *pdev) .stop = hisi_uncore_pmu_stop, .read = hisi_uncore_pmu_read, .attr_groups = hisi_hha_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; ret = perf_pmu_register(&hha_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c index 0bde5d9..cf1cc34 100644 --- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c @@ -397,6 +397,7 @@ static int hisi_l3c_pmu_probe(struct platform_device *pdev) .stop = hisi_uncore_pmu_stop, .read = hisi_uncore_pmu_read, .attr_groups = hisi_l3c_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; ret = perf_pmu_register(&l3c_pmu->pmu, name, -1); diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 9efd241..f028cbc 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -142,15 +142,6 @@ int hisi_uncore_pmu_event_init(struct perf_event *event) if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) return -EOPNOTSUPP; - /* counters do not have these bits */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_host || - event->attr.exclude_guest || - event->attr.exclude_hv || - event->attr.exclude_idle) - return -EINVAL; - /* * The uncore counters not specific to any CPU, so cannot * support per-task -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-01-07 16:28 UTC|newest] Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-01-07 16:27 [PATCH v4 00/13] perf/core: Generalise event exclusion checking Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 01/13] perf/doc: update design.txt for exclude_{host|guest} flags Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 02/13] perf/core: add function to test for event exclusion flags Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 03/13] perf/core: add PERF_PMU_CAP_NO_EXCLUDE for exclusion incapable PMUs Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 04/13] alpha: perf/core: use PERF_PMU_CAP_NO_EXCLUDE Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 05/13] arm: perf: conditionally " Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-08 10:28 ` Peter Zijlstra 2019-01-08 10:28 ` Peter Zijlstra 2019-01-08 10:28 ` Peter Zijlstra 2019-01-08 10:28 ` Peter Zijlstra 2019-01-08 13:07 ` Andrew Murray 2019-01-08 13:07 ` Andrew Murray 2019-01-08 13:07 ` Andrew Murray 2019-01-08 13:10 ` Peter Zijlstra 2019-01-08 13:10 ` Peter Zijlstra 2019-01-08 13:10 ` Peter Zijlstra 2019-01-08 13:10 ` Peter Zijlstra 2019-01-08 13:13 ` Andrew Murray 2019-01-08 13:13 ` Andrew Murray 2019-01-08 13:13 ` Andrew Murray 2019-01-08 14:43 ` Peter Zijlstra 2019-01-08 14:43 ` Peter Zijlstra 2019-01-08 14:43 ` Peter Zijlstra 2019-01-08 14:43 ` Peter Zijlstra 2019-01-07 16:27 ` [PATCH v4 06/13] arm: perf/core: use PERF_PMU_CAP_NO_EXCLUDE for exclude incapable PMUs Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` Andrew Murray [this message] 2019-01-07 16:27 ` [PATCH v4 07/13] drivers/perf: " Andrew Murray 2019-01-07 16:27 ` [PATCH v4 08/13] " Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 09/13] powerpc: " Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 10/13] x86: " Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-08 10:48 ` Peter Zijlstra 2019-01-08 10:48 ` Peter Zijlstra 2019-01-08 10:48 ` Peter Zijlstra 2019-01-08 10:48 ` Peter Zijlstra 2019-01-08 13:12 ` Andrew Murray 2019-01-08 13:12 ` Andrew Murray 2019-01-08 13:12 ` Andrew Murray 2019-01-08 13:12 ` Andrew Murray 2019-01-08 16:36 ` Boris Ostrovsky 2019-01-08 16:36 ` Boris Ostrovsky 2019-01-08 16:36 ` Boris Ostrovsky 2019-01-08 16:36 ` Boris Ostrovsky 2019-01-08 18:49 ` Peter Zijlstra 2019-01-08 18:49 ` Peter Zijlstra 2019-01-08 18:49 ` Peter Zijlstra 2019-01-08 18:49 ` Peter Zijlstra 2019-01-10 13:15 ` Michael Ellerman 2019-01-10 13:15 ` Michael Ellerman 2019-01-10 13:15 ` Michael Ellerman 2019-01-10 13:15 ` Michael Ellerman 2019-01-07 16:27 ` [PATCH v4 11/13] " Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-08 10:49 ` Peter Zijlstra 2019-01-08 10:49 ` Peter Zijlstra 2019-01-08 10:49 ` Peter Zijlstra 2019-01-08 10:49 ` Peter Zijlstra 2019-01-08 13:08 ` Andrew Murray 2019-01-08 13:08 ` Andrew Murray 2019-01-08 13:08 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 12/13] perf/core: remove unused perf_flags Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-07 16:27 ` [PATCH v4 13/13] drivers/perf: use PERF_PMU_CAP_NO_EXCLUDE for Cavium TX2 PMU Andrew Murray 2019-01-07 16:27 ` Andrew Murray 2019-01-10 11:10 ` Will Deacon 2019-01-10 11:10 ` Will Deacon 2019-01-10 11:10 ` Will Deacon
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