From 51280acad8559bd9d2c2e0f98faf08414676478d Mon Sep 17 00:00:00 2001 From: Michael Walle Date: Sun, 29 May 2022 20:13:28 +0200 Subject: cpuidle: cpuidle-arm: remove arm64 support Since commit 788961462f34 ("ARM: psci: cpuidle: Enable PSCI CPUidle driver") the generic ARM cpuidle driver doesn't probe anymore because arm_cpuidle_init() will always return -EOPNOTSUPP. That is, because the mentioned commit removes the only .cpu_suspend and .cpu_init_idle provider. Signed-off-by: Michael Walle Reviewed-by: Sudeep Holla Acked-by: Daniel Lezcano Link: https://lore.kernel.org/r/20220529181329.2345722-2-michael@walle.cc Signed-off-by: Will Deacon --- drivers/cpuidle/Kconfig.arm | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm index be7f512109f7..747aa537389b 100644 --- a/drivers/cpuidle/Kconfig.arm +++ b/drivers/cpuidle/Kconfig.arm @@ -3,7 +3,8 @@ # ARM CPU Idle drivers # config ARM_CPUIDLE - bool "Generic ARM/ARM64 CPU idle Driver" + bool "Generic ARM CPU idle Driver" + depends on ARM select DT_IDLE_STATES select CPU_IDLE_MULTIPLE_DRIVERS help -- cgit v1.2.3 From 49785a77780ce78cae4478fedad2fd4d03067761 Mon Sep 17 00:00:00 2001 From: keliu Date: Thu, 19 May 2022 08:01:26 +0000 Subject: drivers/perf: Directly use ida_alloc()/free() Use ida_alloc()/ida_free() instead of deprecated ida_simple_get()/ida_simple_remove() . Signed-off-by: keliu Link: https://lore.kernel.org/r/20220519080127.147030-1-liuke94@huawei.com Signed-off-by: Will Deacon --- drivers/perf/fsl_imx8_ddr_perf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c index b1b2a55de77f..8e058e08fe81 100644 --- a/drivers/perf/fsl_imx8_ddr_perf.c +++ b/drivers/perf/fsl_imx8_ddr_perf.c @@ -611,7 +611,7 @@ static int ddr_perf_init(struct ddr_pmu *pmu, void __iomem *base, .dev = dev, }; - pmu->id = ida_simple_get(&ddr_ida, 0, 0, GFP_KERNEL); + pmu->id = ida_alloc(&ddr_ida, GFP_KERNEL); return pmu->id; } @@ -765,7 +765,7 @@ ddr_perf_err: cpuhp_instance_err: cpuhp_remove_multi_state(pmu->cpuhp_state); cpuhp_state_err: - ida_simple_remove(&ddr_ida, pmu->id); + ida_free(&ddr_ida, pmu->id); dev_warn(&pdev->dev, "i.MX8 DDR Perf PMU failed (%d), disabled\n", ret); return ret; } @@ -779,7 +779,7 @@ static int ddr_perf_remove(struct platform_device *pdev) perf_pmu_unregister(&pmu->pmu); - ida_simple_remove(&ddr_ida, pmu->id); + ida_free(&ddr_ida, pmu->id); return 0; } -- cgit v1.2.3 From a336916b067c40e06448cb50533b9e2ed561e5d3 Mon Sep 17 00:00:00 2001 From: keliu Date: Thu, 19 May 2022 08:01:27 +0000 Subject: drivers/perf:Directly use ida_alloc()/free() Use ida_alloc()/ida_free() instead of deprecated ida_simple_get()/ida_simple_remove() . Signed-off-by: keliu Link: https://lore.kernel.org/r/20220519080127.147030-2-liuke94@huawei.com Signed-off-by: Will Deacon --- drivers/perf/arm-ccn.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c index 40b352e8aa7f..728d13d8e98a 100644 --- a/drivers/perf/arm-ccn.c +++ b/drivers/perf/arm-ccn.c @@ -1250,7 +1250,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn) ccn->dt.cmp_mask[CCN_IDX_MASK_OPCODE].h = ~(0x1f << 9); /* Get a convenient /sys/event_source/devices/ name */ - ccn->dt.id = ida_simple_get(&arm_ccn_pmu_ida, 0, 0, GFP_KERNEL); + ccn->dt.id = ida_alloc(&arm_ccn_pmu_ida, GFP_KERNEL); if (ccn->dt.id == 0) { name = "ccn"; } else { @@ -1312,7 +1312,7 @@ error_pmu_register: &ccn->dt.node); error_set_affinity: error_choose_name: - ida_simple_remove(&arm_ccn_pmu_ida, ccn->dt.id); + ida_free(&arm_ccn_pmu_ida, ccn->dt.id); for (i = 0; i < ccn->num_xps; i++) writel(0, ccn->xp[i].base + CCN_XP_DT_CONTROL); writel(0, ccn->dt.base + CCN_DT_PMCR); @@ -1329,7 +1329,7 @@ static void arm_ccn_pmu_cleanup(struct arm_ccn *ccn) writel(0, ccn->xp[i].base + CCN_XP_DT_CONTROL); writel(0, ccn->dt.base + CCN_DT_PMCR); perf_pmu_unregister(&ccn->dt.pmu); - ida_simple_remove(&arm_ccn_pmu_ida, ccn->dt.id); + ida_free(&arm_ccn_pmu_ida, ccn->dt.id); } static int arm_ccn_for_each_valid_region(struct arm_ccn *ccn, -- cgit v1.2.3 From 9ba86a4746351424cb9aa8fdd2dd5f9f899df461 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 21 May 2022 13:11:17 +0200 Subject: perf/arm-cci: fix typo in comment Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall Link: https://lore.kernel.org/r/20220521111145.81697-67-Julia.Lawall@inria.fr Signed-off-by: Will Deacon --- drivers/perf/arm-cci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c index 96e09fa40909..16a272c8d4b3 100644 --- a/drivers/perf/arm-cci.c +++ b/drivers/perf/arm-cci.c @@ -1139,7 +1139,7 @@ static void cci_pmu_start(struct perf_event *event, int pmu_flags) /* * To handle interrupt latency, we always reprogram the period - * regardlesss of PERF_EF_RELOAD. + * regardless of PERF_EF_RELOAD. */ if (pmu_flags & PERF_EF_RELOAD) WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE)); -- cgit v1.2.3 From 8e28e53f13562e3fba4c64d01dfb66a9c34167da Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sat, 11 Jun 2022 10:37:40 +0200 Subject: perf/marvell_cn10k: Remove useless license text when SPDX-License-Identifier is already used An SPDX-License-Identifier is already in place. There is no need to duplicate part of the corresponding license. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/4a8016a6da9cc6815cfa0f97ae8d3dd862797bda.1654936653.git.christophe.jaillet@wanadoo.fr Signed-off-by: Will Deacon --- drivers/perf/marvell_cn10k_tad_pmu.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/marvell_cn10k_tad_pmu.c b/drivers/perf/marvell_cn10k_tad_pmu.c index 282d3a071a67..3d4b6d381783 100644 --- a/drivers/perf/marvell_cn10k_tad_pmu.c +++ b/drivers/perf/marvell_cn10k_tad_pmu.c @@ -2,10 +2,6 @@ /* Marvell CN10K LLC-TAD perf driver * * Copyright (C) 2021 Marvell - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #define pr_fmt(fmt) "tad_pmu: " fmt -- cgit v1.2.3 From f5ebeb138fa6eb62d90264f9619019aa8c926a22 Mon Sep 17 00:00:00 2001 From: Tanmay Jagdale Date: Tue, 14 Jun 2022 17:13:56 +0000 Subject: perf/marvell_cn10k: Fix TAD PMU register offset The existing offset of TAD_PRF and TAD_PFC registers are incorrect. Hence, fix with the right register offsets. Also, drop read of TAD_PRF register in tad_pmu_event_counter_start() since we don't have to preserve any bit fields and always write an updated value. Signed-off-by: Tanmay Jagdale Link: https://lore.kernel.org/r/20220614171356.773967-1-tanmay@marvell.com Signed-off-by: Will Deacon --- drivers/perf/marvell_cn10k_tad_pmu.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/marvell_cn10k_tad_pmu.c b/drivers/perf/marvell_cn10k_tad_pmu.c index 3d4b6d381783..69c3050a4348 100644 --- a/drivers/perf/marvell_cn10k_tad_pmu.c +++ b/drivers/perf/marvell_cn10k_tad_pmu.c @@ -14,9 +14,9 @@ #include #include -#define TAD_PFC_OFFSET 0x0 +#define TAD_PFC_OFFSET 0x800 #define TAD_PFC(counter) (TAD_PFC_OFFSET | (counter << 3)) -#define TAD_PRF_OFFSET 0x100 +#define TAD_PRF_OFFSET 0x900 #define TAD_PRF(counter) (TAD_PRF_OFFSET | (counter << 3)) #define TAD_PRF_CNTSEL_MASK 0xFF #define TAD_MAX_COUNTERS 8 @@ -96,9 +96,7 @@ static void tad_pmu_event_counter_start(struct perf_event *event, int flags) * which sets TAD()_PRF()[CNTSEL] != 0 */ for (i = 0; i < tad_pmu->region_cnt; i++) { - reg_val = readq_relaxed(tad_pmu->regions[i].base + - TAD_PRF(counter_idx)); - reg_val |= (event_idx & 0xFF); + reg_val = event_idx & 0xFF; writeq_relaxed(reg_val, tad_pmu->regions[i].base + TAD_PRF(counter_idx)); } -- cgit v1.2.3 From e500405dd15d956790859fa532c64d8186445372 Mon Sep 17 00:00:00 2001 From: Chen Jun Date: Mon, 16 May 2022 13:16:01 +0000 Subject: perf: hisi: Extract hisi_pmu_init Extract the initialization code of hisi_pmu->pmu into a function Signed-off-by: Chen Jun Link: https://lore.kernel.org/r/20220516131601.48383-1-chenjun102@huawei.com Signed-off-by: Will Deacon --- drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 16 +--------------- drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 16 +--------------- drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 16 +--------------- drivers/perf/hisilicon/hisi_uncore_pa_pmu.c | 16 +--------------- drivers/perf/hisilicon/hisi_uncore_pmu.c | 18 ++++++++++++++++++ drivers/perf/hisilicon/hisi_uncore_pmu.h | 2 ++ drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c | 15 +-------------- 7 files changed, 25 insertions(+), 74 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c index 62299ab5a9be..50d0c0a2f1fe 100644 --- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c @@ -516,21 +516,7 @@ static int hisi_ddrc_pmu_probe(struct platform_device *pdev) "hisi_sccl%u_ddrc%u", ddrc_pmu->sccl_id, ddrc_pmu->index_id); - ddrc_pmu->pmu = (struct pmu) { - .name = name, - .module = THIS_MODULE, - .task_ctx_nr = perf_invalid_context, - .event_init = hisi_uncore_pmu_event_init, - .pmu_enable = hisi_uncore_pmu_enable, - .pmu_disable = hisi_uncore_pmu_disable, - .add = hisi_uncore_pmu_add, - .del = hisi_uncore_pmu_del, - .start = hisi_uncore_pmu_start, - .stop = hisi_uncore_pmu_stop, - .read = hisi_uncore_pmu_read, - .attr_groups = ddrc_pmu->pmu_events.attr_groups, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, - }; + hisi_pmu_init(&ddrc_pmu->pmu, name, ddrc_pmu->pmu_events.attr_groups, THIS_MODULE); ret = perf_pmu_register(&ddrc_pmu->pmu, name, -1); if (ret) { diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c index 393513150106..13017b3412a5 100644 --- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c @@ -519,21 +519,7 @@ static int hisi_hha_pmu_probe(struct platform_device *pdev) name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%u_hha%u", hha_pmu->sccl_id, hha_pmu->index_id); - hha_pmu->pmu = (struct pmu) { - .name = name, - .module = THIS_MODULE, - .task_ctx_nr = perf_invalid_context, - .event_init = hisi_uncore_pmu_event_init, - .pmu_enable = hisi_uncore_pmu_enable, - .pmu_disable = hisi_uncore_pmu_disable, - .add = hisi_uncore_pmu_add, - .del = hisi_uncore_pmu_del, - .start = hisi_uncore_pmu_start, - .stop = hisi_uncore_pmu_stop, - .read = hisi_uncore_pmu_read, - .attr_groups = hha_pmu->pmu_events.attr_groups, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, - }; + hisi_pmu_init(&hha_pmu->pmu, name, hha_pmu->pmu_events.attr_groups, THIS_MODULE); ret = perf_pmu_register(&hha_pmu->pmu, name, -1); if (ret) { diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c index 560ab964c8b5..2995f3630d49 100644 --- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c @@ -557,21 +557,7 @@ static int hisi_l3c_pmu_probe(struct platform_device *pdev) */ name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%u_l3c%u", l3c_pmu->sccl_id, l3c_pmu->ccl_id); - l3c_pmu->pmu = (struct pmu) { - .name = name, - .module = THIS_MODULE, - .task_ctx_nr = perf_invalid_context, - .event_init = hisi_uncore_pmu_event_init, - .pmu_enable = hisi_uncore_pmu_enable, - .pmu_disable = hisi_uncore_pmu_disable, - .add = hisi_uncore_pmu_add, - .del = hisi_uncore_pmu_del, - .start = hisi_uncore_pmu_start, - .stop = hisi_uncore_pmu_stop, - .read = hisi_uncore_pmu_read, - .attr_groups = l3c_pmu->pmu_events.attr_groups, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, - }; + hisi_pmu_init(&l3c_pmu->pmu, name, l3c_pmu->pmu_events.attr_groups, THIS_MODULE); ret = perf_pmu_register(&l3c_pmu->pmu, name, -1); if (ret) { diff --git a/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c index a0ee84d97c41..47d3cc9b6eec 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c @@ -412,21 +412,7 @@ static int hisi_pa_pmu_probe(struct platform_device *pdev) return ret; } - pa_pmu->pmu = (struct pmu) { - .module = THIS_MODULE, - .task_ctx_nr = perf_invalid_context, - .event_init = hisi_uncore_pmu_event_init, - .pmu_enable = hisi_uncore_pmu_enable, - .pmu_disable = hisi_uncore_pmu_disable, - .add = hisi_uncore_pmu_add, - .del = hisi_uncore_pmu_del, - .start = hisi_uncore_pmu_start, - .stop = hisi_uncore_pmu_stop, - .read = hisi_uncore_pmu_read, - .attr_groups = pa_pmu->pmu_events.attr_groups, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, - }; - + hisi_pmu_init(&pa_pmu->pmu, name, pa_pmu->pmu_events.attr_groups, THIS_MODULE); ret = perf_pmu_register(&pa_pmu->pmu, name, -1); if (ret) { dev_err(pa_pmu->dev, "PMU register failed, ret = %d\n", ret); diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 980b9ee6eb14..fbc8a93d5eac 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -531,4 +531,22 @@ int hisi_uncore_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) } EXPORT_SYMBOL_GPL(hisi_uncore_pmu_offline_cpu); +void hisi_pmu_init(struct pmu *pmu, const char *name, + const struct attribute_group **attr_groups, struct module *module) +{ + pmu->name = name; + pmu->module = module; + pmu->task_ctx_nr = perf_invalid_context; + pmu->event_init = hisi_uncore_pmu_event_init; + pmu->pmu_enable = hisi_uncore_pmu_enable; + pmu->pmu_disable = hisi_uncore_pmu_disable; + pmu->add = hisi_uncore_pmu_add; + pmu->del = hisi_uncore_pmu_del; + pmu->start = hisi_uncore_pmu_start; + pmu->stop = hisi_uncore_pmu_stop; + pmu->read = hisi_uncore_pmu_read; + pmu->attr_groups = attr_groups; +} +EXPORT_SYMBOL_GPL(hisi_pmu_init); + MODULE_LICENSE("GPL v2"); diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h index 96eeddad55ff..b59de33cd059 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.h +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h @@ -121,4 +121,6 @@ ssize_t hisi_uncore_pmu_identifier_attr_show(struct device *dev, int hisi_uncore_pmu_init_irq(struct hisi_pmu *hisi_pmu, struct platform_device *pdev); +void hisi_pmu_init(struct pmu *pmu, const char *name, + const struct attribute_group **attr_groups, struct module *module); #endif /* __HISI_UNCORE_PMU_H__ */ diff --git a/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c index 6aedc303ff56..b9c79f17230c 100644 --- a/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c @@ -445,20 +445,7 @@ static int hisi_sllc_pmu_probe(struct platform_device *pdev) return ret; } - sllc_pmu->pmu = (struct pmu) { - .module = THIS_MODULE, - .task_ctx_nr = perf_invalid_context, - .event_init = hisi_uncore_pmu_event_init, - .pmu_enable = hisi_uncore_pmu_enable, - .pmu_disable = hisi_uncore_pmu_disable, - .add = hisi_uncore_pmu_add, - .del = hisi_uncore_pmu_del, - .start = hisi_uncore_pmu_start, - .stop = hisi_uncore_pmu_stop, - .read = hisi_uncore_pmu_read, - .attr_groups = sllc_pmu->pmu_events.attr_groups, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, - }; + hisi_pmu_init(&sllc_pmu->pmu, name, sllc_pmu->pmu_events.attr_groups, THIS_MODULE); ret = perf_pmu_register(&sllc_pmu->pmu, name, -1); if (ret) { -- cgit v1.2.3 From e9a023f2b73ac35ff5cfbefe8524c64d8173d65f Mon Sep 17 00:00:00 2001 From: Eric Lin Date: Tue, 5 Jul 2022 17:19:20 +0800 Subject: drivers/perf: riscv_pmu: Add riscv pmu pm notifier Currently, when the CPU is doing suspend to ram, we don't save pmu counter register and its content will be lost. To ensure perf profiling is not affected by suspend to ram, this patch is based on arm_pmu CPU_PM notifier and implements riscv pmu pm notifier. In the pm notifier, we stop the counter and update the counter value before suspend and start the counter after resume. Signed-off-by: Eric Lin Link: https://lore.kernel.org/r/20220705091920.27432-1-eric.lin@sifive.com Signed-off-by: Will Deacon --- drivers/perf/riscv_pmu.c | 4 +-- drivers/perf/riscv_pmu_sbi.c | 81 +++++++++++++++++++++++++++++++++++++++--- include/linux/perf/riscv_pmu.h | 4 +++ 3 files changed, 83 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/riscv_pmu.c b/drivers/perf/riscv_pmu.c index b2b8d2074ed0..2c961839903d 100644 --- a/drivers/perf/riscv_pmu.c +++ b/drivers/perf/riscv_pmu.c @@ -121,7 +121,7 @@ u64 riscv_pmu_event_update(struct perf_event *event) return delta; } -static void riscv_pmu_stop(struct perf_event *event, int flags) +void riscv_pmu_stop(struct perf_event *event, int flags) { struct hw_perf_event *hwc = &event->hw; struct riscv_pmu *rvpmu = to_riscv_pmu(event->pmu); @@ -175,7 +175,7 @@ int riscv_pmu_event_set_period(struct perf_event *event) return overflow; } -static void riscv_pmu_start(struct perf_event *event, int flags) +void riscv_pmu_start(struct perf_event *event, int flags) { struct hw_perf_event *hwc = &event->hw; struct riscv_pmu *rvpmu = to_riscv_pmu(event->pmu); diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index dca3537a8dcc..adc910e0f1e2 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -693,6 +694,73 @@ static int pmu_sbi_setup_irqs(struct riscv_pmu *pmu, struct platform_device *pde return 0; } +#ifdef CONFIG_CPU_PM +static int riscv_pm_pmu_notify(struct notifier_block *b, unsigned long cmd, + void *v) +{ + struct riscv_pmu *rvpmu = container_of(b, struct riscv_pmu, riscv_pm_nb); + struct cpu_hw_events *cpuc = this_cpu_ptr(rvpmu->hw_events); + int enabled = bitmap_weight(cpuc->used_hw_ctrs, RISCV_MAX_COUNTERS); + struct perf_event *event; + int idx; + + if (!enabled) + return NOTIFY_OK; + + for (idx = 0; idx < RISCV_MAX_COUNTERS; idx++) { + event = cpuc->events[idx]; + if (!event) + continue; + + switch (cmd) { + case CPU_PM_ENTER: + /* + * Stop and update the counter + */ + riscv_pmu_stop(event, PERF_EF_UPDATE); + break; + case CPU_PM_EXIT: + case CPU_PM_ENTER_FAILED: + /* + * Restore and enable the counter. + * + * Requires RCU read locking to be functional, + * wrap the call within RCU_NONIDLE to make the + * RCU subsystem aware this cpu is not idle from + * an RCU perspective for the riscv_pmu_start() call + * duration. + */ + RCU_NONIDLE(riscv_pmu_start(event, PERF_EF_RELOAD)); + break; + default: + break; + } + } + + return NOTIFY_OK; +} + +static int riscv_pm_pmu_register(struct riscv_pmu *pmu) +{ + pmu->riscv_pm_nb.notifier_call = riscv_pm_pmu_notify; + return cpu_pm_register_notifier(&pmu->riscv_pm_nb); +} + +static void riscv_pm_pmu_unregister(struct riscv_pmu *pmu) +{ + cpu_pm_unregister_notifier(&pmu->riscv_pm_nb); +} +#else +static inline int riscv_pm_pmu_register(struct riscv_pmu *pmu) { return 0; } +static inline void riscv_pm_pmu_unregister(struct riscv_pmu *pmu) { } +#endif + +static void riscv_pmu_destroy(struct riscv_pmu *pmu) +{ + riscv_pm_pmu_unregister(pmu); + cpuhp_state_remove_instance(CPUHP_AP_PERF_RISCV_STARTING, &pmu->node); +} + static int pmu_sbi_device_probe(struct platform_device *pdev) { struct riscv_pmu *pmu = NULL; @@ -733,14 +801,19 @@ static int pmu_sbi_device_probe(struct platform_device *pdev) if (ret) return ret; + ret = riscv_pm_pmu_register(pmu); + if (ret) + goto out_unregister; + ret = perf_pmu_register(&pmu->pmu, "cpu", PERF_TYPE_RAW); - if (ret) { - cpuhp_state_remove_instance(CPUHP_AP_PERF_RISCV_STARTING, &pmu->node); - return ret; - } + if (ret) + goto out_unregister; return 0; +out_unregister: + riscv_pmu_destroy(pmu); + out_free: kfree(pmu); return ret; diff --git a/include/linux/perf/riscv_pmu.h b/include/linux/perf/riscv_pmu.h index 46f9b6fe306e..bf66fe011fa8 100644 --- a/include/linux/perf/riscv_pmu.h +++ b/include/linux/perf/riscv_pmu.h @@ -56,9 +56,13 @@ struct riscv_pmu { struct cpu_hw_events __percpu *hw_events; struct hlist_node node; + struct notifier_block riscv_pm_nb; }; #define to_riscv_pmu(p) (container_of(p, struct riscv_pmu, pmu)) + +void riscv_pmu_start(struct perf_event *event, int flags); +void riscv_pmu_stop(struct perf_event *event, int flags); unsigned long riscv_pmu_ctr_read_csr(unsigned long csr); int riscv_pmu_event_set_period(struct perf_event *event); uint64_t riscv_pmu_ctr_get_width_mask(struct perf_event *event); -- cgit v1.2.3 From 0e35850b341e88055ca11cad74efa464b2159984 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Wed, 6 Jul 2022 07:20:15 +0200 Subject: perf/arm-cci: Use the bitmap API to allocate bitmaps Use devm_bitmap_zalloc() instead of hand-writing it. It is less verbose and it improves the semantic. While at it, use bitmap_zero() instead of hand-writing it. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/fbde85a5e8ae99b10a2115d8ea1e69320a62947f.1657084786.git.christophe.jaillet@wanadoo.fr Signed-off-by: Will Deacon --- drivers/perf/arm-cci.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c index 16a272c8d4b3..03b1309875ae 100644 --- a/drivers/perf/arm-cci.c +++ b/drivers/perf/arm-cci.c @@ -1261,7 +1261,7 @@ static int validate_group(struct perf_event *event) */ .used_mask = mask, }; - memset(mask, 0, BITS_TO_LONGS(cci_pmu->num_cntrs) * sizeof(unsigned long)); + bitmap_zero(mask, cci_pmu->num_cntrs); if (!validate_event(event->pmu, &fake_pmu, leader)) return -EINVAL; @@ -1629,10 +1629,9 @@ static struct cci_pmu *cci_pmu_alloc(struct device *dev) GFP_KERNEL); if (!cci_pmu->hw_events.events) return ERR_PTR(-ENOMEM); - cci_pmu->hw_events.used_mask = devm_kcalloc(dev, - BITS_TO_LONGS(CCI_PMU_MAX_HW_CNTRS(model)), - sizeof(*cci_pmu->hw_events.used_mask), - GFP_KERNEL); + cci_pmu->hw_events.used_mask = devm_bitmap_zalloc(dev, + CCI_PMU_MAX_HW_CNTRS(model), + GFP_KERNEL); if (!cci_pmu->hw_events.used_mask) return ERR_PTR(-ENOMEM); -- cgit v1.2.3 From 26fabd6d2ffc2812138a613bec84ec72541842e7 Mon Sep 17 00:00:00 2001 From: Nikita Shubin Date: Tue, 28 Jun 2022 14:45:55 +0300 Subject: drivers/perf: riscv_pmu_sbi: perf format Update driver to export formatting and event information to sysfs so it can be used by the perf user space tools with the syntaxes: perf stat -e cpu/event=0x05 perf stat -e cpu/event=0x05,firmware=0x1/ 63-bit is used to distinguish hardware events from firmware. Firmware events are defined by "RISC-V Supervisor Binary Interface Specification". perf stat -e cpu/event=0x05,firmware=0x1/ is equivalent to perf stat -e r8000000000000005 Suggested-by: João Mário Domingos Signed-off-by: Nikita Shubin Link: https://github.com/riscv-non-isa/riscv-sbi-doc/blob/master/riscv-sbi.adoc Link: https://lore.kernel.org/r/20220628114625.166665-2-nikita.shubin@maquefel.me Signed-off-by: Will Deacon --- drivers/perf/riscv_pmu_sbi.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers') diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index adc910e0f1e2..06fefcccf379 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -22,6 +22,25 @@ #include #include +PMU_FORMAT_ATTR(event, "config:0-47"); +PMU_FORMAT_ATTR(firmware, "config:63"); + +static struct attribute *riscv_arch_formats_attr[] = { + &format_attr_event.attr, + &format_attr_firmware.attr, + NULL, +}; + +static struct attribute_group riscv_pmu_format_group = { + .name = "format", + .attrs = riscv_arch_formats_attr, +}; + +static const struct attribute_group *riscv_pmu_attr_groups[] = { + &riscv_pmu_format_group, + NULL, +}; + union sbi_pmu_ctr_info { unsigned long value; struct { @@ -788,6 +807,7 @@ static int pmu_sbi_device_probe(struct platform_device *pdev) pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT; pmu->pmu.capabilities |= PERF_PMU_CAP_NO_EXCLUDE; } + pmu->pmu.attr_groups = riscv_pmu_attr_groups; pmu->num_counters = num_counters; pmu->ctr_start = pmu_sbi_ctr_start; pmu->ctr_stop = pmu_sbi_ctr_stop; -- cgit v1.2.3 From 66637ab137b44914356a9dc7a9b3f8ebcf0b0695 Mon Sep 17 00:00:00 2001 From: Guangbin Huang Date: Tue, 28 Jun 2022 14:34:19 +0800 Subject: drivers/perf: hisi: add driver for HNS3 PMU HNS3(HiSilicon Network System 3) PMU is RCiEP device in HiSilicon SoC NIC, supports collection of performance statistics such as bandwidth, latency, packet rate and interrupt rate. NIC of each SICL has one PMU device for it. Driver registers each PMU device to perf, and exports information of supported events, filter mode of each event, bdf range, hardware clock frequency, identifier and so on via sysfs. Each PMU device has its own registers of control, counters and interrupt, and it supports 8 hardware events, each hardward event has its own registers for configuration, counters and interrupt. Filter options contains: config - select event port - select physical port of nic tc - select tc(must be used with port) func - select PF/VF queue - select queue of PF/VF(must be used with func) intr - select interrupt number(must be used with func) global - select all functions of IO DIE Signed-off-by: Guangbin Huang Reviewed-by: John Garry Reviewed-by: Shaokun Zhang Link: https://lore.kernel.org/r/20220628063419.38514-3-huangguangbin2@huawei.com Signed-off-by: Will Deacon --- MAINTAINERS | 6 + drivers/perf/hisilicon/Kconfig | 10 + drivers/perf/hisilicon/Makefile | 1 + drivers/perf/hisilicon/hns3_pmu.c | 1671 +++++++++++++++++++++++++++++++++++++ include/linux/cpuhotplug.h | 1 + 5 files changed, 1689 insertions(+) create mode 100644 drivers/perf/hisilicon/hns3_pmu.c (limited to 'drivers') diff --git a/MAINTAINERS b/MAINTAINERS index 3cf9842d9233..6fc770ed6292 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8944,6 +8944,12 @@ F: Documentation/admin-guide/perf/hisi-pcie-pmu.rst F: Documentation/admin-guide/perf/hisi-pmu.rst F: drivers/perf/hisilicon +HISILICON HNS3 PMU DRIVER +M: Guangbin Huang +S: Supported +F: Documentation/admin-guide/perf/hns3-pmu.rst +F: drivers/perf/hisilicon/hns3_pmu.c + HISILICON QM AND ZIP Controller DRIVER M: Zhou Wang L: linux-crypto@vger.kernel.org diff --git a/drivers/perf/hisilicon/Kconfig b/drivers/perf/hisilicon/Kconfig index 5546218b5598..171bfc1b6bc2 100644 --- a/drivers/perf/hisilicon/Kconfig +++ b/drivers/perf/hisilicon/Kconfig @@ -14,3 +14,13 @@ config HISI_PCIE_PMU RCiEP devices. Adds the PCIe PMU into perf events system for monitoring latency, bandwidth etc. + +config HNS3_PMU + tristate "HNS3 PERF PMU" + depends on ARM64 || COMPILE_TEST + depends on PCI + help + Provide support for HNS3 performance monitoring unit (PMU) RCiEP + devices. + Adds the HNS3 PMU into perf events system for monitoring latency, + bandwidth etc. diff --git a/drivers/perf/hisilicon/Makefile b/drivers/perf/hisilicon/Makefile index 6be83517acaa..4d2c9abe3372 100644 --- a/drivers/perf/hisilicon/Makefile +++ b/drivers/perf/hisilicon/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_HISI_PMU) += hisi_uncore_pmu.o hisi_uncore_l3c_pmu.o \ hisi_uncore_pa_pmu.o hisi_uncore_cpa_pmu.o obj-$(CONFIG_HISI_PCIE_PMU) += hisi_pcie_pmu.o +obj-$(CONFIG_HNS3_PMU) += hns3_pmu.o diff --git a/drivers/perf/hisilicon/hns3_pmu.c b/drivers/perf/hisilicon/hns3_pmu.c new file mode 100644 index 000000000000..e0457d84af6b --- /dev/null +++ b/drivers/perf/hisilicon/hns3_pmu.c @@ -0,0 +1,1671 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * This driver adds support for HNS3 PMU iEP device. Related perf events are + * bandwidth, latency, packet rate, interrupt rate etc. + * + * Copyright (C) 2022 HiSilicon Limited + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* registers offset address */ +#define HNS3_PMU_REG_GLOBAL_CTRL 0x0000 +#define HNS3_PMU_REG_CLOCK_FREQ 0x0020 +#define HNS3_PMU_REG_BDF 0x0fe0 +#define HNS3_PMU_REG_VERSION 0x0fe4 +#define HNS3_PMU_REG_DEVICE_ID 0x0fe8 + +#define HNS3_PMU_REG_EVENT_OFFSET 0x1000 +#define HNS3_PMU_REG_EVENT_SIZE 0x1000 +#define HNS3_PMU_REG_EVENT_CTRL_LOW 0x00 +#define HNS3_PMU_REG_EVENT_CTRL_HIGH 0x04 +#define HNS3_PMU_REG_EVENT_INTR_STATUS 0x08 +#define HNS3_PMU_REG_EVENT_INTR_MASK 0x0c +#define HNS3_PMU_REG_EVENT_COUNTER 0x10 +#define HNS3_PMU_REG_EVENT_EXT_COUNTER 0x18 +#define HNS3_PMU_REG_EVENT_QID_CTRL 0x28 +#define HNS3_PMU_REG_EVENT_QID_PARA 0x2c + +#define HNS3_PMU_FILTER_SUPPORT_GLOBAL BIT(0) +#define HNS3_PMU_FILTER_SUPPORT_PORT BIT(1) +#define HNS3_PMU_FILTER_SUPPORT_PORT_TC BIT(2) +#define HNS3_PMU_FILTER_SUPPORT_FUNC BIT(3) +#define HNS3_PMU_FILTER_SUPPORT_FUNC_QUEUE BIT(4) +#define HNS3_PMU_FILTER_SUPPORT_FUNC_INTR BIT(5) + +#define HNS3_PMU_FILTER_ALL_TC 0xf +#define HNS3_PMU_FILTER_ALL_QUEUE 0xffff + +#define HNS3_PMU_CTRL_SUBEVENT_S 4 +#define HNS3_PMU_CTRL_FILTER_MODE_S 24 + +#define HNS3_PMU_GLOBAL_START BIT(0) + +#define HNS3_PMU_EVENT_STATUS_RESET BIT(11) +#define HNS3_PMU_EVENT_EN BIT(12) +#define HNS3_PMU_EVENT_OVERFLOW_RESTART BIT(15) + +#define HNS3_PMU_QID_PARA_FUNC_S 0 +#define HNS3_PMU_QID_PARA_QUEUE_S 16 + +#define HNS3_PMU_QID_CTRL_REQ_ENABLE BIT(0) +#define HNS3_PMU_QID_CTRL_DONE BIT(1) +#define HNS3_PMU_QID_CTRL_MISS BIT(2) + +#define HNS3_PMU_INTR_MASK_OVERFLOW BIT(1) + +#define HNS3_PMU_MAX_HW_EVENTS 8 + +/* + * Each hardware event contains two registers (counter and ext_counter) for + * bandwidth, packet rate, latency and interrupt rate. These two registers will + * be triggered to run at the same when a hardware event is enabled. The meaning + * of counter and ext_counter of different event type are different, their + * meaning show as follow: + * + * +----------------+------------------+---------------+ + * | event type | counter | ext_counter | + * +----------------+------------------+---------------+ + * | bandwidth | byte number | cycle number | + * +----------------+------------------+---------------+ + * | packet rate | packet number | cycle number | + * +----------------+------------------+---------------+ + * | latency | cycle number | packet number | + * +----------------+------------------+---------------+ + * | interrupt rate | interrupt number | cycle number | + * +----------------+------------------+---------------+ + * + * The cycle number indicates increment of counter of hardware timer, the + * frequency of hardware timer can be read from hw_clk_freq file. + * + * Performance of each hardware event is calculated by: counter / ext_counter. + * + * Since processing of data is preferred to be done in userspace, we expose + * ext_counter as a separate event for userspace and use bit 16 to indicate it. + * For example, event 0x00001 and 0x10001 are actually one event for hardware + * because bit 0-15 are same. If the bit 16 of one event is 0 means to read + * counter register, otherwise means to read ext_counter register. + */ +/* bandwidth events */ +#define HNS3_PMU_EVT_BW_SSU_EGU_BYTE_NUM 0x00001 +#define HNS3_PMU_EVT_BW_SSU_EGU_TIME 0x10001 +#define HNS3_PMU_EVT_BW_SSU_RPU_BYTE_NUM 0x00002 +#define HNS3_PMU_EVT_BW_SSU_RPU_TIME 0x10002 +#define HNS3_PMU_EVT_BW_SSU_ROCE_BYTE_NUM 0x00003 +#define HNS3_PMU_EVT_BW_SSU_ROCE_TIME 0x10003 +#define HNS3_PMU_EVT_BW_ROCE_SSU_BYTE_NUM 0x00004 +#define HNS3_PMU_EVT_BW_ROCE_SSU_TIME 0x10004 +#define HNS3_PMU_EVT_BW_TPU_SSU_BYTE_NUM 0x00005 +#define HNS3_PMU_EVT_BW_TPU_SSU_TIME 0x10005 +#define HNS3_PMU_EVT_BW_RPU_RCBRX_BYTE_NUM 0x00006 +#define HNS3_PMU_EVT_BW_RPU_RCBRX_TIME 0x10006 +#define HNS3_PMU_EVT_BW_RCBTX_TXSCH_BYTE_NUM 0x00008 +#define HNS3_PMU_EVT_BW_RCBTX_TXSCH_TIME 0x10008 +#define HNS3_PMU_EVT_BW_WR_FBD_BYTE_NUM 0x00009 +#define HNS3_PMU_EVT_BW_WR_FBD_TIME 0x10009 +#define HNS3_PMU_EVT_BW_WR_EBD_BYTE_NUM 0x0000a +#define HNS3_PMU_EVT_BW_WR_EBD_TIME 0x1000a +#define HNS3_PMU_EVT_BW_RD_FBD_BYTE_NUM 0x0000b +#define HNS3_PMU_EVT_BW_RD_FBD_TIME 0x1000b +#define HNS3_PMU_EVT_BW_RD_EBD_BYTE_NUM 0x0000c +#define HNS3_PMU_EVT_BW_RD_EBD_TIME 0x1000c +#define HNS3_PMU_EVT_BW_RD_PAY_M0_BYTE_NUM 0x0000d +#define HNS3_PMU_EVT_BW_RD_PAY_M0_TIME 0x1000d +#define HNS3_PMU_EVT_BW_RD_PAY_M1_BYTE_NUM 0x0000e +#define HNS3_PMU_EVT_BW_RD_PAY_M1_TIME 0x1000e +#define HNS3_PMU_EVT_BW_WR_PAY_M0_BYTE_NUM 0x0000f +#define HNS3_PMU_EVT_BW_WR_PAY_M0_TIME 0x1000f +#define HNS3_PMU_EVT_BW_WR_PAY_M1_BYTE_NUM 0x00010 +#define HNS3_PMU_EVT_BW_WR_PAY_M1_TIME 0x10010 + +/* packet rate events */ +#define HNS3_PMU_EVT_PPS_IGU_SSU_PACKET_NUM 0x00100 +#define HNS3_PMU_EVT_PPS_IGU_SSU_TIME 0x10100 +#define HNS3_PMU_EVT_PPS_SSU_EGU_PACKET_NUM 0x00101 +#define HNS3_PMU_EVT_PPS_SSU_EGU_TIME 0x10101 +#define HNS3_PMU_EVT_PPS_SSU_RPU_PACKET_NUM 0x00102 +#define HNS3_PMU_EVT_PPS_SSU_RPU_TIME 0x10102 +#define HNS3_PMU_EVT_PPS_SSU_ROCE_PACKET_NUM 0x00103 +#define HNS3_PMU_EVT_PPS_SSU_ROCE_TIME 0x10103 +#define HNS3_PMU_EVT_PPS_ROCE_SSU_PACKET_NUM 0x00104 +#define HNS3_PMU_EVT_PPS_ROCE_SSU_TIME 0x10104 +#define HNS3_PMU_EVT_PPS_TPU_SSU_PACKET_NUM 0x00105 +#define HNS3_PMU_EVT_PPS_TPU_SSU_TIME 0x10105 +#define HNS3_PMU_EVT_PPS_RPU_RCBRX_PACKET_NUM 0x00106 +#define HNS3_PMU_EVT_PPS_RPU_RCBRX_TIME 0x10106 +#define HNS3_PMU_EVT_PPS_RCBTX_TPU_PACKET_NUM 0x00107 +#define HNS3_PMU_EVT_PPS_RCBTX_TPU_TIME 0x10107 +#define HNS3_PMU_EVT_PPS_RCBTX_TXSCH_PACKET_NUM 0x00108 +#define HNS3_PMU_EVT_PPS_RCBTX_TXSCH_TIME 0x10108 +#define HNS3_PMU_EVT_PPS_WR_FBD_PACKET_NUM 0x00109 +#define HNS3_PMU_EVT_PPS_WR_FBD_TIME 0x10109 +#define HNS3_PMU_EVT_PPS_WR_EBD_PACKET_NUM 0x0010a +#define HNS3_PMU_EVT_PPS_WR_EBD_TIME 0x1010a +#define HNS3_PMU_EVT_PPS_RD_FBD_PACKET_NUM 0x0010b +#define HNS3_PMU_EVT_PPS_RD_FBD_TIME 0x1010b +#define HNS3_PMU_EVT_PPS_RD_EBD_PACKET_NUM 0x0010c +#define HNS3_PMU_EVT_PPS_RD_EBD_TIME 0x1010c +#define HNS3_PMU_EVT_PPS_RD_PAY_M0_PACKET_NUM 0x0010d +#define HNS3_PMU_EVT_PPS_RD_PAY_M0_TIME 0x1010d +#define HNS3_PMU_EVT_PPS_RD_PAY_M1_PACKET_NUM 0x0010e +#define HNS3_PMU_EVT_PPS_RD_PAY_M1_TIME 0x1010e +#define HNS3_PMU_EVT_PPS_WR_PAY_M0_PACKET_NUM 0x0010f +#define HNS3_PMU_EVT_PPS_WR_PAY_M0_TIME 0x1010f +#define HNS3_PMU_EVT_PPS_WR_PAY_M1_PACKET_NUM 0x00110 +#define HNS3_PMU_EVT_PPS_WR_PAY_M1_TIME 0x10110 +#define HNS3_PMU_EVT_PPS_NICROH_TX_PRE_PACKET_NUM 0x00111 +#define HNS3_PMU_EVT_PPS_NICROH_TX_PRE_TIME 0x10111 +#define HNS3_PMU_EVT_PPS_NICROH_RX_PRE_PACKET_NUM 0x00112 +#define HNS3_PMU_EVT_PPS_NICROH_RX_PRE_TIME 0x10112 + +/* latency events */ +#define HNS3_PMU_EVT_DLY_TX_PUSH_TIME 0x00202 +#define HNS3_PMU_EVT_DLY_TX_PUSH_PACKET_NUM 0x10202 +#define HNS3_PMU_EVT_DLY_TX_TIME 0x00204 +#define HNS3_PMU_EVT_DLY_TX_PACKET_NUM 0x10204 +#define HNS3_PMU_EVT_DLY_SSU_TX_NIC_TIME 0x00206 +#define HNS3_PMU_EVT_DLY_SSU_TX_NIC_PACKET_NUM 0x10206 +#define HNS3_PMU_EVT_DLY_SSU_TX_ROCE_TIME 0x00207 +#define HNS3_PMU_EVT_DLY_SSU_TX_ROCE_PACKET_NUM 0x10207 +#define HNS3_PMU_EVT_DLY_SSU_RX_NIC_TIME 0x00208 +#define HNS3_PMU_EVT_DLY_SSU_RX_NIC_PACKET_NUM 0x10208 +#define HNS3_PMU_EVT_DLY_SSU_RX_ROCE_TIME 0x00209 +#define HNS3_PMU_EVT_DLY_SSU_RX_ROCE_PACKET_NUM 0x10209 +#define HNS3_PMU_EVT_DLY_RPU_TIME 0x0020e +#define HNS3_PMU_EVT_DLY_RPU_PACKET_NUM 0x1020e +#define HNS3_PMU_EVT_DLY_TPU_TIME 0x0020f +#define HNS3_PMU_EVT_DLY_TPU_PACKET_NUM 0x1020f +#define HNS3_PMU_EVT_DLY_RPE_TIME 0x00210 +#define HNS3_PMU_EVT_DLY_RPE_PACKET_NUM 0x10210 +#define HNS3_PMU_EVT_DLY_TPE_TIME 0x00211 +#define HNS3_PMU_EVT_DLY_TPE_PACKET_NUM 0x10211 +#define HNS3_PMU_EVT_DLY_TPE_PUSH_TIME 0x00212 +#define HNS3_PMU_EVT_DLY_TPE_PUSH_PACKET_NUM 0x10212 +#define HNS3_PMU_EVT_DLY_WR_FBD_TIME 0x00213 +#define HNS3_PMU_EVT_DLY_WR_FBD_PACKET_NUM 0x10213 +#define HNS3_PMU_EVT_DLY_WR_EBD_TIME 0x00214 +#define HNS3_PMU_EVT_DLY_WR_EBD_PACKET_NUM 0x10214 +#define HNS3_PMU_EVT_DLY_RD_FBD_TIME 0x00215 +#define HNS3_PMU_EVT_DLY_RD_FBD_PACKET_NUM 0x10215 +#define HNS3_PMU_EVT_DLY_RD_EBD_TIME 0x00216 +#define HNS3_PMU_EVT_DLY_RD_EBD_PACKET_NUM 0x10216 +#define HNS3_PMU_EVT_DLY_RD_PAY_M0_TIME 0x00217 +#define HNS3_PMU_EVT_DLY_RD_PAY_M0_PACKET_NUM 0x10217 +#define HNS3_PMU_EVT_DLY_RD_PAY_M1_TIME 0x00218 +#define HNS3_PMU_EVT_DLY_RD_PAY_M1_PACKET_NUM 0x10218 +#define HNS3_PMU_EVT_DLY_WR_PAY_M0_TIME 0x00219 +#define HNS3_PMU_EVT_DLY_WR_PAY_M0_PACKET_NUM 0x10219 +#define HNS3_PMU_EVT_DLY_WR_PAY_M1_TIME 0x0021a +#define HNS3_PMU_EVT_DLY_WR_PAY_M1_PACKET_NUM 0x1021a +#define HNS3_PMU_EVT_DLY_MSIX_WRITE_TIME 0x0021c +#define HNS3_PMU_EVT_DLY_MSIX_WRITE_PACKET_NUM 0x1021c + +/* interrupt rate events */ +#define HNS3_PMU_EVT_PPS_MSIX_NIC_INTR_NUM 0x00300 +#define HNS3_PMU_EVT_PPS_MSIX_NIC_TIME 0x10300 + +/* filter mode supported by each bandwidth event */ +#define HNS3_PMU_FILTER_BW_SSU_EGU 0x07 +#define HNS3_PMU_FILTER_BW_SSU_RPU 0x1f +#define HNS3_PMU_FILTER_BW_SSU_ROCE 0x0f +#define HNS3_PMU_FILTER_BW_ROCE_SSU 0x0f +#define HNS3_PMU_FILTER_BW_TPU_SSU 0x1f +#define HNS3_PMU_FILTER_BW_RPU_RCBRX 0x11 +#define HNS3_PMU_FILTER_BW_RCBTX_TXSCH 0x11 +#define HNS3_PMU_FILTER_BW_WR_FBD 0x1b +#define HNS3_PMU_FILTER_BW_WR_EBD 0x11 +#define HNS3_PMU_FILTER_BW_RD_FBD 0x01 +#define HNS3_PMU_FILTER_BW_RD_EBD 0x1b +#define HNS3_PMU_FILTER_BW_RD_PAY_M0 0x01 +#define HNS3_PMU_FILTER_BW_RD_PAY_M1 0x01 +#define HNS3_PMU_FILTER_BW_WR_PAY_M0 0x01 +#define HNS3_PMU_FILTER_BW_WR_PAY_M1 0x01 + +/* filter mode supported by each packet rate event */ +#define HNS3_PMU_FILTER_PPS_IGU_SSU 0x07 +#define HNS3_PMU_FILTER_PPS_SSU_EGU 0x07 +#define HNS3_PMU_FILTER_PPS_SSU_RPU 0x1f +#define HNS3_PMU_FILTER_PPS_SSU_ROCE 0x0f +#define HNS3_PMU_FILTER_PPS_ROCE_SSU 0x0f +#define HNS3_PMU_FILTER_PPS_TPU_SSU 0x1f +#define HNS3_PMU_FILTER_PPS_RPU_RCBRX 0x11 +#define HNS3_PMU_FILTER_PPS_RCBTX_TPU 0x1f +#define HNS3_PMU_FILTER_PPS_RCBTX_TXSCH 0x11 +#define HNS3_PMU_FILTER_PPS_WR_FBD 0x1b +#define HNS3_PMU_FILTER_PPS_WR_EBD 0x11 +#define HNS3_PMU_FILTER_PPS_RD_FBD 0x01 +#define HNS3_PMU_FILTER_PPS_RD_EBD 0x1b +#define HNS3_PMU_FILTER_PPS_RD_PAY_M0 0x01 +#define HNS3_PMU_FILTER_PPS_RD_PAY_M1 0x01 +#define HNS3_PMU_FILTER_PPS_WR_PAY_M0 0x01 +#define HNS3_PMU_FILTER_PPS_WR_PAY_M1 0x01 +#define HNS3_PMU_FILTER_PPS_NICROH_TX_PRE 0x01 +#define HNS3_PMU_FILTER_PPS_NICROH_RX_PRE 0x01 + +/* filter mode supported by each latency event */ +#define HNS3_PMU_FILTER_DLY_TX_PUSH 0x01 +#define HNS3_PMU_FILTER_DLY_TX 0x01 +#define HNS3_PMU_FILTER_DLY_SSU_TX_NIC 0x07 +#define HNS3_PMU_FILTER_DLY_SSU_TX_ROCE 0x07 +#define HNS3_PMU_FILTER_DLY_SSU_RX_NIC 0x07 +#define HNS3_PMU_FILTER_DLY_SSU_RX_ROCE 0x07 +#define HNS3_PMU_FILTER_DLY_RPU 0x11 +#define HNS3_PMU_FILTER_DLY_TPU 0x1f +#define HNS3_PMU_FILTER_DLY_RPE 0x01 +#define HNS3_PMU_FILTER_DLY_TPE 0x0b +#define HNS3_PMU_FILTER_DLY_TPE_PUSH 0x1b +#define HNS3_PMU_FILTER_DLY_WR_FBD 0x1b +#define HNS3_PMU_FILTER_DLY_WR_EBD 0x11 +#define HNS3_PMU_FILTER_DLY_RD_FBD 0x01 +#define HNS3_PMU_FILTER_DLY_RD_EBD 0x1b +#define HNS3_PMU_FILTER_DLY_RD_PAY_M0 0x01 +#define HNS3_PMU_FILTER_DLY_RD_PAY_M1 0x01 +#define HNS3_PMU_FILTER_DLY_WR_PAY_M0 0x01 +#define HNS3_PMU_FILTER_DLY_WR_PAY_M1 0x01 +#define HNS3_PMU_FILTER_DLY_MSIX_WRITE 0x01 + +/* filter mode supported by each interrupt rate event */ +#define HNS3_PMU_FILTER_INTR_MSIX_NIC 0x01 + +enum hns3_pmu_hw_filter_mode { + HNS3_PMU_HW_FILTER_GLOBAL, + HNS3_PMU_HW_FILTER_PORT, + HNS3_PMU_HW_FILTER_PORT_TC, + HNS3_PMU_HW_FILTER_FUNC, + HNS3_PMU_HW_FILTER_FUNC_QUEUE, + HNS3_PMU_HW_FILTER_FUNC_INTR, +}; + +struct hns3_pmu_event_attr { + u32 event; + u16 filter_support; +}; + +struct hns3_pmu { + struct perf_event *hw_events[HNS3_PMU_MAX_HW_EVENTS]; + struct hlist_node node; + struct pci_dev *pdev; + struct pmu pmu; + void __iomem *base; + int irq; + int on_cpu; + u32 identifier; + u32 hw_clk_freq; /* hardware clock frequency of PMU */ + /* maximum and minimum bdf allowed by PMU */ + u16 bdf_min; + u16 bdf_max; +}; + +#define to_hns3_pmu(p) (container_of((p), struct hns3_pmu, pmu)) + +#define GET_PCI_DEVFN(bdf) ((bdf) & 0xff) + +#define FILTER_CONDITION_PORT(port) ((1 << (port)) & 0xff) +#define FILTER_CONDITION_PORT_TC(port, tc) (((port) << 3) | ((tc) & 0x07)) +#define FILTER_CONDITION_FUNC_INTR(func, intr) (((intr) << 8) | (func)) + +#define HNS3_PMU_FILTER_ATTR(_name, _config, _start, _end) \ + static inline u64 hns3_pmu_get_##_name(struct perf_event *event) \ + { \ + return FIELD_GET(GENMASK_ULL(_end, _start), \ + event->attr._config); \ + } + +HNS3_PMU_FILTER_ATTR(subevent, config, 0, 7); +HNS3_PMU_FILTER_ATTR(event_type, config, 8, 15); +HNS3_PMU_FILTER_ATTR(ext_counter_used, config, 16, 16); +HNS3_PMU_FILTER_ATTR(port, config1, 0, 3); +HNS3_PMU_FILTER_ATTR(tc, config1, 4, 7); +HNS3_PMU_FILTER_ATTR(bdf, config1, 8, 23); +HNS3_PMU_FILTER_ATTR(queue, config1, 24, 39); +HNS3_PMU_FILTER_ATTR(intr, config1, 40, 51); +HNS3_PMU_FILTER_ATTR(global, config1, 52, 52); + +#define HNS3_BW_EVT_BYTE_NUM(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_BW_##_name##_BYTE_NUM, \ + HNS3_PMU_FILTER_BW_##_name}) +#define HNS3_BW_EVT_TIME(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_BW_##_name##_TIME, \ + HNS3_PMU_FILTER_BW_##_name}) +#define HNS3_PPS_EVT_PACKET_NUM(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_PPS_##_name##_PACKET_NUM, \ + HNS3_PMU_FILTER_PPS_##_name}) +#define HNS3_PPS_EVT_TIME(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_PPS_##_name##_TIME, \ + HNS3_PMU_FILTER_PPS_##_name}) +#define HNS3_DLY_EVT_TIME(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_DLY_##_name##_TIME, \ + HNS3_PMU_FILTER_DLY_##_name}) +#define HNS3_DLY_EVT_PACKET_NUM(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_DLY_##_name##_PACKET_NUM, \ + HNS3_PMU_FILTER_DLY_##_name}) +#define HNS3_INTR_EVT_INTR_NUM(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_PPS_##_name##_INTR_NUM, \ + HNS3_PMU_FILTER_INTR_##_name}) +#define HNS3_INTR_EVT_TIME(_name) (&(struct hns3_pmu_event_attr) {\ + HNS3_PMU_EVT_PPS_##_name##_TIME, \ + HNS3_PMU_FILTER_INTR_##_name}) + +static ssize_t hns3_pmu_format_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct dev_ext_attribute *eattr; + + eattr = container_of(attr, struct dev_ext_attribute, attr); + + return sysfs_emit(buf, "%s\n", (char *)eattr->var); +} + +static ssize_t hns3_pmu_event_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hns3_pmu_event_attr *event; + struct dev_ext_attribute *eattr; + + eattr = container_of(attr, struct dev_ext_attribute, attr); + event = eattr->var; + + return sysfs_emit(buf, "config=0x%x\n", event->event); +} + +static ssize_t hns3_pmu_filter_mode_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hns3_pmu_event_attr *event; + struct dev_ext_attribute *eattr; + int len; + + eattr = container_of(attr, struct dev_ext_attribute, attr); + event = eattr->var; + + len = sysfs_emit_at(buf, 0, "filter mode supported: "); + if (event->filter_support & HNS3_PMU_FILTER_SUPPORT_GLOBAL) + len += sysfs_emit_at(buf, len, "global "); + if (event->filter_support & HNS3_PMU_FILTER_SUPPORT_PORT) + len += sysfs_emit_at(buf, len, "port "); + if (event->filter_support & HNS3_PMU_FILTER_SUPPORT_PORT_TC) + len += sysfs_emit_at(buf, len, "port-tc "); + if (event->filter_support & HNS3_PMU_FILTER_SUPPORT_FUNC) + len += sysfs_emit_at(buf, len, "func "); + if (event->filter_support & HNS3_PMU_FILTER_SUPPORT_FUNC_QUEUE) + len += sysfs_emit_at(buf, len, "func-queue "); + if (event->filter_support & HNS3_PMU_FILTER_SUPPORT_FUNC_INTR) + len += sysfs_emit_at(buf, len, "func-intr "); + + len += sysfs_emit_at(buf, len, "\n"); + + return len; +} + +#define HNS3_PMU_ATTR(_name, _func, _config) \ + (&((struct dev_ext_attribute[]) { \ + { __ATTR(_name, 0444, _func, NULL), (void *)_config } \ + })[0].attr.attr) + +#define HNS3_PMU_FORMAT_ATTR(_name, _format) \ + HNS3_PMU_ATTR(_name, hns3_pmu_format_show, (void *)_format) +#define HNS3_PMU_EVENT_ATTR(_name, _event) \ + HNS3_PMU_ATTR(_name, hns3_pmu_event_show, (void *)_event) +#define HNS3_PMU_FLT_MODE_ATTR(_name, _event) \ + HNS3_PMU_ATTR(_name, hns3_pmu_filter_mode_show, (void *)_event) + +#define HNS3_PMU_BW_EVT_PAIR(_name, _macro) \ + HNS3_PMU_EVENT_ATTR(_name##_byte_num, HNS3_BW_EVT_BYTE_NUM(_macro)), \ + HNS3_PMU_EVENT_ATTR(_name##_time, HNS3_BW_EVT_TIME(_macro)) +#define HNS3_PMU_PPS_EVT_PAIR(_name, _macro) \ + HNS3_PMU_EVENT_ATTR(_name##_packet_num, HNS3_PPS_EVT_PACKET_NUM(_macro)), \ + HNS3_PMU_EVENT_ATTR(_name##_time, HNS3_PPS_EVT_TIME(_macro)) +#define HNS3_PMU_DLY_EVT_PAIR(_name, _macro) \ + HNS3_PMU_EVENT_ATTR(_name##_time, HNS3_DLY_EVT_TIME(_macro)), \ + HNS3_PMU_EVENT_ATTR(_name##_packet_num, HNS3_DLY_EVT_PACKET_NUM(_macro)) +#define HNS3_PMU_INTR_EVT_PAIR(_name, _macro) \ + HNS3_PMU_EVENT_ATTR(_name##_intr_num, HNS3_INTR_EVT_INTR_NUM(_macro)), \ + HNS3_PMU_EVENT_ATTR(_name##_time, HNS3_INTR_EVT_TIME(_macro)) + +#define HNS3_PMU_BW_FLT_MODE_PAIR(_name, _macro) \ + HNS3_PMU_FLT_MODE_ATTR(_name##_byte_num, HNS3_BW_EVT_BYTE_NUM(_macro)), \ + HNS3_PMU_FLT_MODE_ATTR(_name##_time, HNS3_BW_EVT_TIME(_macro)) +#define HNS3_PMU_PPS_FLT_MODE_PAIR(_name, _macro) \ + HNS3_PMU_FLT_MODE_ATTR(_name##_packet_num, HNS3_PPS_EVT_PACKET_NUM(_macro)), \ + HNS3_PMU_FLT_MODE_ATTR(_name##_time, HNS3_PPS_EVT_TIME(_macro)) +#define HNS3_PMU_DLY_FLT_MODE_PAIR(_name, _macro) \ + HNS3_PMU_FLT_MODE_ATTR(_name##_time, HNS3_DLY_EVT_TIME(_macro)), \ + HNS3_PMU_FLT_MODE_ATTR(_name##_packet_num, HNS3_DLY_EVT_PACKET_NUM(_macro)) +#define HNS3_PMU_INTR_FLT_MODE_PAIR(_name, _macro) \ + HNS3_PMU_FLT_MODE_ATTR(_name##_intr_num, HNS3_INTR_EVT_INTR_NUM(_macro)), \ + HNS3_PMU_FLT_MODE_ATTR(_name##_time, HNS3_INTR_EVT_TIME(_macro)) + +static u8 hns3_pmu_hw_filter_modes[] = { + HNS3_PMU_HW_FILTER_GLOBAL, + HNS3_PMU_HW_FILTER_PORT, + HNS3_PMU_HW_FILTER_PORT_TC, + HNS3_PMU_HW_FILTER_FUNC, + HNS3_PMU_HW_FILTER_FUNC_QUEUE, + HNS3_PMU_HW_FILTER_FUNC_INTR, +}; + +#define HNS3_PMU_SET_HW_FILTER(_hwc, _mode) \ + ((_hwc)->addr_filters = (void *)&hns3_pmu_hw_filter_modes[(_mode)]) + +static ssize_t identifier_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(dev_get_drvdata(dev)); + + return sysfs_emit(buf, "0x%x\n", hns3_pmu->identifier); +} +static DEVICE_ATTR_RO(identifier); + +static ssize_t cpumask_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(dev_get_drvdata(dev)); + + return sysfs_emit(buf, "%d\n", hns3_pmu->on_cpu); +} +static DEVICE_ATTR_RO(cpumask); + +static ssize_t bdf_min_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(dev_get_drvdata(dev)); + u16 bdf = hns3_pmu->bdf_min; + + return sysfs_emit(buf, "%02x:%02x.%x\n", PCI_BUS_NUM(bdf), + PCI_SLOT(bdf), PCI_FUNC(bdf)); +} +static DEVICE_ATTR_RO(bdf_min); + +static ssize_t bdf_max_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(dev_get_drvdata(dev)); + u16 bdf = hns3_pmu->bdf_max; + + return sysfs_emit(buf, "%02x:%02x.%x\n", PCI_BUS_NUM(bdf), + PCI_SLOT(bdf), PCI_FUNC(bdf)); +} +static DEVICE_ATTR_RO(bdf_max); + +static ssize_t hw_clk_freq_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(dev_get_drvdata(dev)); + + return sysfs_emit(buf, "%u\n", hns3_pmu->hw_clk_freq); +} +static DEVICE_ATTR_RO(hw_clk_freq); + +static struct attribute *hns3_pmu_events_attr[] = { + /* bandwidth events */ + HNS3_PMU_BW_EVT_PAIR(bw_ssu_egu, SSU_EGU), + HNS3_PMU_BW_EVT_PAIR(bw_ssu_rpu, SSU_RPU), + HNS3_PMU_BW_EVT_PAIR(bw_ssu_roce, SSU_ROCE), + HNS3_PMU_BW_EVT_PAIR(bw_roce_ssu, ROCE_SSU), + HNS3_PMU_BW_EVT_PAIR(bw_tpu_ssu, TPU_SSU), + HNS3_PMU_BW_EVT_PAIR(bw_rpu_rcbrx, RPU_RCBRX), + HNS3_PMU_BW_EVT_PAIR(bw_rcbtx_txsch, RCBTX_TXSCH), + HNS3_PMU_BW_EVT_PAIR(bw_wr_fbd, WR_FBD), + HNS3_PMU_BW_EVT_PAIR(bw_wr_ebd, WR_EBD), + HNS3_PMU_BW_EVT_PAIR(bw_rd_fbd, RD_FBD), + HNS3_PMU_BW_EVT_PAIR(bw_rd_ebd, RD_EBD), + HNS3_PMU_BW_EVT_PAIR(bw_rd_pay_m0, RD_PAY_M0), + HNS3_PMU_BW_EVT_PAIR(bw_rd_pay_m1, RD_PAY_M1), + HNS3_PMU_BW_EVT_PAIR(bw_wr_pay_m0, WR_PAY_M0), + HNS3_PMU_BW_EVT_PAIR(bw_wr_pay_m1, WR_PAY_M1), + + /* packet rate events */ + HNS3_PMU_PPS_EVT_PAIR(pps_igu_ssu, IGU_SSU), + HNS3_PMU_PPS_EVT_PAIR(pps_ssu_egu, SSU_EGU), + HNS3_PMU_PPS_EVT_PAIR(pps_ssu_rpu, SSU_RPU), + HNS3_PMU_PPS_EVT_PAIR(pps_ssu_roce, SSU_ROCE), + HNS3_PMU_PPS_EVT_PAIR(pps_roce_ssu, ROCE_SSU), + HNS3_PMU_PPS_EVT_PAIR(pps_tpu_ssu, TPU_SSU), + HNS3_PMU_PPS_EVT_PAIR(pps_rpu_rcbrx, RPU_RCBRX), + HNS3_PMU_PPS_EVT_PAIR(pps_rcbtx_tpu, RCBTX_TPU), + HNS3_PMU_PPS_EVT_PAIR(pps_rcbtx_txsch, RCBTX_TXSCH), + HNS3_PMU_PPS_EVT_PAIR(pps_wr_fbd, WR_FBD), + HNS3_PMU_PPS_EVT_PAIR(pps_wr_ebd, WR_EBD), + HNS3_PMU_PPS_EVT_PAIR(pps_rd_fbd, RD_FBD), + HNS3_PMU_PPS_EVT_PAIR(pps_rd_ebd, RD_EBD), + HNS3_PMU_PPS_EVT_PAIR(pps_rd_pay_m0, RD_PAY_M0), + HNS3_PMU_PPS_EVT_PAIR(pps_rd_pay_m1, RD_PAY_M1), + HNS3_PMU_PPS_EVT_PAIR(pps_wr_pay_m0, WR_PAY_M0), + HNS3_PMU_PPS_EVT_PAIR(pps_wr_pay_m1, WR_PAY_M1), + HNS3_PMU_PPS_EVT_PAIR(pps_intr_nicroh_tx_pre, NICROH_TX_PRE), + HNS3_PMU_PPS_EVT_PAIR(pps_intr_nicroh_rx_pre, NICROH_RX_PRE), + + /* latency events */ + HNS3_PMU_DLY_EVT_PAIR(dly_tx_push_to_mac, TX_PUSH), + HNS3_PMU_DLY_EVT_PAIR(dly_tx_normal_to_mac, TX), + HNS3_PMU_DLY_EVT_PAIR(dly_ssu_tx_th_nic, SSU_TX_NIC), + HNS3_PMU_DLY_EVT_PAIR(dly_ssu_tx_th_roce, SSU_TX_ROCE), + HNS3_PMU_DLY_EVT_PAIR(dly_ssu_rx_th_nic, SSU_RX_NIC), + HNS3_PMU_DLY_EVT_PAIR(dly_ssu_rx_th_roce, SSU_RX_ROCE), + HNS3_PMU_DLY_EVT_PAIR(dly_rpu, RPU), + HNS3_PMU_DLY_EVT_PAIR(dly_tpu, TPU), + HNS3_PMU_DLY_EVT_PAIR(dly_rpe, RPE), + HNS3_PMU_DLY_EVT_PAIR(dly_tpe_normal, TPE), + HNS3_PMU_DLY_EVT_PAIR(dly_tpe_push, TPE_PUSH), + HNS3_PMU_DLY_EVT_PAIR(dly_wr_fbd, WR_FBD), + HNS3_PMU_DLY_EVT_PAIR(dly_wr_ebd, WR_EBD), + HNS3_PMU_DLY_EVT_PAIR(dly_rd_fbd, RD_FBD), + HNS3_PMU_DLY_EVT_PAIR(dly_rd_ebd, RD_EBD), + HNS3_PMU_DLY_EVT_PAIR(dly_rd_pay_m0, RD_PAY_M0), + HNS3_PMU_DLY_EVT_PAIR(dly_rd_pay_m1, RD_PAY_M1), + HNS3_PMU_DLY_EVT_PAIR(dly_wr_pay_m0, WR_PAY_M0), + HNS3_PMU_DLY_EVT_PAIR(dly_wr_pay_m1, WR_PAY_M1), + HNS3_PMU_DLY_EVT_PAIR(dly_msix_write, MSIX_WRITE), + + /* interrupt rate events */ + HNS3_PMU_INTR_EVT_PAIR(pps_intr_msix_nic, MSIX_NIC), + + NULL +}; + +static struct attribute *hns3_pmu_filter_mode_attr[] = { + /* bandwidth events */ + HNS3_PMU_BW_FLT_MODE_PAIR(bw_ssu_egu, SSU_EGU), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_ssu_rpu, SSU_RPU), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_ssu_roce, SSU_ROCE), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_roce_ssu, ROCE_SSU), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_tpu_ssu, TPU_SSU), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_rpu_rcbrx, RPU_RCBRX), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_rcbtx_txsch, RCBTX_TXSCH), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_wr_fbd, WR_FBD), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_wr_ebd, WR_EBD), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_rd_fbd, RD_FBD), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_rd_ebd, RD_EBD), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_rd_pay_m0, RD_PAY_M0), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_rd_pay_m1, RD_PAY_M1), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_wr_pay_m0, WR_PAY_M0), + HNS3_PMU_BW_FLT_MODE_PAIR(bw_wr_pay_m1, WR_PAY_M1), + + /* packet rate events */ + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_igu_ssu, IGU_SSU), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_ssu_egu, SSU_EGU), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_ssu_rpu, SSU_RPU), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_ssu_roce, SSU_ROCE), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_roce_ssu, ROCE_SSU), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_tpu_ssu, TPU_SSU), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rpu_rcbrx, RPU_RCBRX), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rcbtx_tpu, RCBTX_TPU), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rcbtx_txsch, RCBTX_TXSCH), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_wr_fbd, WR_FBD), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_wr_ebd, WR_EBD), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rd_fbd, RD_FBD), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rd_ebd, RD_EBD), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rd_pay_m0, RD_PAY_M0), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_rd_pay_m1, RD_PAY_M1), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_wr_pay_m0, WR_PAY_M0), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_wr_pay_m1, WR_PAY_M1), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_intr_nicroh_tx_pre, NICROH_TX_PRE), + HNS3_PMU_PPS_FLT_MODE_PAIR(pps_intr_nicroh_rx_pre, NICROH_RX_PRE), + + /* latency events */ + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_tx_push_to_mac, TX_PUSH), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_tx_normal_to_mac, TX), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_ssu_tx_th_nic, SSU_TX_NIC), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_ssu_tx_th_roce, SSU_TX_ROCE), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_ssu_rx_th_nic, SSU_RX_NIC), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_ssu_rx_th_roce, SSU_RX_ROCE), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_rpu, RPU), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_tpu, TPU), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_rpe, RPE), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_tpe_normal, TPE), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_tpe_push, TPE_PUSH), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_wr_fbd, WR_FBD), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_wr_ebd, WR_EBD), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_rd_fbd, RD_FBD), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_rd_ebd, RD_EBD), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_rd_pay_m0, RD_PAY_M0), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_rd_pay_m1, RD_PAY_M1), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_wr_pay_m0, WR_PAY_M0), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_wr_pay_m1, WR_PAY_M1), + HNS3_PMU_DLY_FLT_MODE_PAIR(dly_msix_write, MSIX_WRITE), + + /* interrupt rate events */ + HNS3_PMU_INTR_FLT_MODE_PAIR(pps_intr_msix_nic, MSIX_NIC), + + NULL +}; + +static struct attribute_group hns3_pmu_events_group = { + .name = "events", + .attrs = hns3_pmu_events_attr, +}; + +static struct attribute_group hns3_pmu_filter_mode_group = { + .name = "filtermode", + .attrs = hns3_pmu_filter_mode_attr, +}; + +static struct attribute *hns3_pmu_format_attr[] = { + HNS3_PMU_FORMAT_ATTR(subevent, "config:0-7"), + HNS3_PMU_FORMAT_ATTR(event_type, "config:8-15"), + HNS3_PMU_FORMAT_ATTR(ext_counter_used, "config:16"), + HNS3_PMU_FORMAT_ATTR(port, "config1:0-3"), + HNS3_PMU_FORMAT_ATTR(tc, "config1:4-7"), + HNS3_PMU_FORMAT_ATTR(bdf, "config1:8-23"), + HNS3_PMU_FORMAT_ATTR(queue, "config1:24-39"), + HNS3_PMU_FORMAT_ATTR(intr, "config1:40-51"), + HNS3_PMU_FORMAT_ATTR(global, "config1:52"), + NULL +}; + +static struct attribute_group hns3_pmu_format_group = { + .name = "format", + .attrs = hns3_pmu_format_attr, +}; + +static struct attribute *hns3_pmu_cpumask_attrs[] = { + &dev_attr_cpumask.attr, + NULL +}; + +static struct attribute_group hns3_pmu_cpumask_attr_group = { + .attrs = hns3_pmu_cpumask_attrs, +}; + +static struct attribute *hns3_pmu_identifier_attrs[] = { + &dev_attr_identifier.attr, + NULL +}; + +static struct attribute_group hns3_pmu_identifier_attr_group = { + .attrs = hns3_pmu_identifier_attrs, +}; + +static struct attribute *hns3_pmu_bdf_range_attrs[] = { + &dev_attr_bdf_min.attr, + &dev_attr_bdf_max.attr, + NULL +}; + +static struct attribute_group hns3_pmu_bdf_range_attr_group = { + .attrs = hns3_pmu_bdf_range_attrs, +}; + +static struct attribute *hns3_pmu_hw_clk_freq_attrs[] = { + &dev_attr_hw_clk_freq.attr, + NULL +}; + +static struct attribute_group hns3_pmu_hw_clk_freq_attr_group = { + .attrs = hns3_pmu_hw_clk_freq_attrs, +}; + +static const struct attribute_group *hns3_pmu_attr_groups[] = { + &hns3_pmu_events_group, + &hns3_pmu_filter_mode_group, + &hns3_pmu_format_group, + &hns3_pmu_cpumask_attr_group, + &hns3_pmu_identifier_attr_group, + &hns3_pmu_bdf_range_attr_group, + &hns3_pmu_hw_clk_freq_attr_group, + NULL +}; + +static u32 hns3_pmu_get_event(struct perf_event *event) +{ + return hns3_pmu_get_ext_counter_used(event) << 16 | + hns3_pmu_get_event_type(event) << 8 | + hns3_pmu_get_subevent(event); +} + +static u32 hns3_pmu_get_real_event(struct perf_event *event) +{ + return hns3_pmu_get_event_type(event) << 8 | + hns3_pmu_get_subevent(event); +} + +static u32 hns3_pmu_get_offset(u32 offset, u32 idx) +{ + return offset + HNS3_PMU_REG_EVENT_OFFSET + + HNS3_PMU_REG_EVENT_SIZE * idx; +} + +static u32 hns3_pmu_readl(struct hns3_pmu *hns3_pmu, u32 reg_offset, u32 idx) +{ + u32 offset = hns3_pmu_get_offset(reg_offset, idx); + + return readl(hns3_pmu->base + offset); +} + +static void hns3_pmu_writel(struct hns3_pmu *hns3_pmu, u32 reg_offset, u32 idx, + u32 val) +{ + u32 offset = hns3_pmu_get_offset(reg_offset, idx); + + writel(val, hns3_pmu->base + offset); +} + +static u64 hns3_pmu_readq(struct hns3_pmu *hns3_pmu, u32 reg_offset, u32 idx) +{ + u32 offset = hns3_pmu_get_offset(reg_offset, idx); + + return readq(hns3_pmu->base + offset); +} + +static void hns3_pmu_writeq(struct hns3_pmu *hns3_pmu, u32 reg_offset, u32 idx, + u64 val) +{ + u32 offset = hns3_pmu_get_offset(reg_offset, idx); + + writeq(val, hns3_pmu->base + offset); +} + +static bool hns3_pmu_cmp_event(struct perf_event *target, + struct perf_event *event) +{ + return hns3_pmu_get_real_event(target) == hns3_pmu_get_real_event(event); +} + +static int hns3_pmu_find_related_event_idx(struct hns3_pmu *hns3_pmu, + struct perf_event *event) +{ + struct perf_event *sibling; + int hw_event_used = 0; + int idx; + + for (idx = 0; idx < HNS3_PMU_MAX_HW_EVENTS; idx++) { + sibling = hns3_pmu->hw_events[idx]; + if (!sibling) + continue; + + hw_event_used++; + + if (!hns3_pmu_cmp_event(sibling, event)) + continue; + + /* Related events is used in group */ + if (sibling->group_leader == event->group_leader) + return idx; + } + + /* No related event and all hardware events are used up */ + if (hw_event_used >= HNS3_PMU_MAX_HW_EVENTS) + return -EBUSY; + + /* No related event and there is extra hardware events can be use */ + return -ENOENT; +} + +static int hns3_pmu_get_event_idx(struct hns3_pmu *hns3_pmu) +{ + int idx; + + for (idx = 0; idx < HNS3_PMU_MAX_HW_EVENTS; idx++) { + if (!hns3_pmu->hw_events[idx]) + return idx; + } + + return -EBUSY; +} + +static bool hns3_pmu_valid_bdf(struct hns3_pmu *hns3_pmu, u16 bdf) +{ + struct pci_dev *pdev; + + if (bdf < hns3_pmu->bdf_min || bdf > hns3_pmu->bdf_max) { + pci_err(hns3_pmu->pdev, "Invalid EP device: %#x!\n", bdf); + return false; + } + + pdev = pci_get_domain_bus_and_slot(pci_domain_nr(hns3_pmu->pdev->bus), + PCI_BUS_NUM(bdf), + GET_PCI_DEVFN(bdf)); + if (!pdev) { + pci_err(hns3_pmu->pdev, "Nonexistent EP device: %#x!\n", bdf); + return false; + } + + pci_dev_put(pdev); + return true; +} + +static void hns3_pmu_set_qid_para(struct hns3_pmu *hns3_pmu, u32 idx, u16 bdf, + u16 queue) +{ + u32 val; + + val = GET_PCI_DEVFN(bdf); + val |= (u32)queue << HNS3_PMU_QID_PARA_QUEUE_S; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_QID_PARA, idx, val); +} + +static bool hns3_pmu_qid_req_start(struct hns3_pmu *hns3_pmu, u32 idx) +{ + bool queue_id_valid = false; + u32 reg_qid_ctrl, val; + int err; + + /* enable queue id request */ + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_QID_CTRL, idx, + HNS3_PMU_QID_CTRL_REQ_ENABLE); + + reg_qid_ctrl = hns3_pmu_get_offset(HNS3_PMU_REG_EVENT_QID_CTRL, idx); + err = readl_poll_timeout(hns3_pmu->base + reg_qid_ctrl, val, + val & HNS3_PMU_QID_CTRL_DONE, 1, 1000); + if (err == -ETIMEDOUT) { + pci_err(hns3_pmu->pdev, "QID request timeout!\n"); + goto out; + } + + queue_id_valid = !(val & HNS3_PMU_QID_CTRL_MISS); + +out: + /* disable qid request and clear status */ + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_QID_CTRL, idx, 0); + + return queue_id_valid; +} + +static bool hns3_pmu_valid_queue(struct hns3_pmu *hns3_pmu, u32 idx, u16 bdf, + u16 queue) +{ + hns3_pmu_set_qid_para(hns3_pmu, idx, bdf, queue); + + return hns3_pmu_qid_req_start(hns3_pmu, idx); +} + +static struct hns3_pmu_event_attr *hns3_pmu_get_pmu_event(u32 event) +{ + struct hns3_pmu_event_attr *pmu_event; + struct dev_ext_attribute *eattr; + struct device_attribute *dattr; + struct attribute *attr; + u32 i; + + for (i = 0; i < ARRAY_SIZE(hns3_pmu_events_attr) - 1; i++) { + attr = hns3_pmu_events_attr[i]; + dattr = container_of(attr, struct device_attribute, attr); + eattr = container_of(dattr, struct dev_ext_attribute, attr); + pmu_event = eattr->var; + + if (event == pmu_event->event) + return pmu_event; + } + + return NULL; +} + +static int hns3_pmu_set_func_mode(struct perf_event *event, + struct hns3_pmu *hns3_pmu) +{ + struct hw_perf_event *hwc = &event->hw; + u16 bdf = hns3_pmu_get_bdf(event); + + if (!hns3_pmu_valid_bdf(hns3_pmu, bdf)) + return -ENOENT; + + HNS3_PMU_SET_HW_FILTER(hwc, HNS3_PMU_HW_FILTER_FUNC); + + return 0; +} + +static int hns3_pmu_set_func_queue_mode(struct perf_event *event, + struct hns3_pmu *hns3_pmu) +{ + u16 queue_id = hns3_pmu_get_queue(event); + struct hw_perf_event *hwc = &event->hw; + u16 bdf = hns3_pmu_get_bdf(event); + + if (!hns3_pmu_valid_bdf(hns3_pmu, bdf)) + return -ENOENT; + + if (!hns3_pmu_valid_queue(hns3_pmu, hwc->idx, bdf, queue_id)) { + pci_err(hns3_pmu->pdev, "Invalid queue: %u\n", queue_id); + return -ENOENT; + } + + HNS3_PMU_SET_HW_FILTER(hwc, HNS3_PMU_HW_FILTER_FUNC_QUEUE); + + return 0; +} + +static bool +hns3_pmu_is_enabled_global_mode(struct perf_event *event, + struct hns3_pmu_event_attr *pmu_event) +{ + u8 global = hns3_pmu_get_global(event); + + if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_GLOBAL)) + return false; + + return global; +} + +static bool hns3_pmu_is_enabled_func_mode(struct perf_event *event, + struct hns3_pmu_event_attr *pmu_event) +{ + u16 queue_id = hns3_pmu_get_queue(event); + u16 bdf = hns3_pmu_get_bdf(event); + + if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_FUNC)) + return false; + else if (queue_id != HNS3_PMU_FILTER_ALL_QUEUE) + return false; + + return bdf; +} + +static bool +hns3_pmu_is_enabled_func_queue_mode(struct perf_event *event, + struct hns3_pmu_event_attr *pmu_event) +{ + u16 queue_id = hns3_pmu_get_queue(event); + u16 bdf = hns3_pmu_get_bdf(event); + + if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_FUNC_QUEUE)) + return false; + else if (queue_id == HNS3_PMU_FILTER_ALL_QUEUE) + return false; + + return bdf; +} + +static bool hns3_pmu_is_enabled_port_mode(struct perf_event *event, + struct hns3_pmu_event_attr *pmu_event) +{ + u8 tc_id = hns3_pmu_get_tc(event); + + if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_PORT)) + return false; + + return tc_id == HNS3_PMU_FILTER_ALL_TC; +} + +static bool +hns3_pmu_is_enabled_port_tc_mode(struct perf_event *event, + struct hns3_pmu_event_attr *pmu_event) +{ + u8 tc_id = hns3_pmu_get_tc(event); + + if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_PORT_TC)) + return false; + + return tc_id != HNS3_PMU_FILTER_ALL_TC; +} + +static bool +hns3_pmu_is_enabled_func_intr_mode(struct perf_event *event, + struct hns3_pmu *hns3_pmu, + struct hns3_pmu_event_attr *pmu_event) +{ + u16 bdf = hns3_pmu_get_bdf(event); + + if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_FUNC_INTR)) + return false; + + return hns3_pmu_valid_bdf(hns3_pmu, bdf); +} + +static int hns3_pmu_select_filter_mode(struct perf_event *event, + struct hns3_pmu *hns3_pmu) +{ + u32 event_id = hns3_pmu_get_event(event); + struct hw_perf_event *hwc = &event->hw; + struct hns3_pmu_event_attr *pmu_event; + + pmu_event = hns3_pmu_get_pmu_event(event_id); + if (!pmu_event) { + pci_err(hns3_pmu->pdev, "Invalid pmu event\n"); + return -ENOENT; + } + + if (hns3_pmu_is_enabled_global_mode(event, pmu_event)) { + HNS3_PMU_SET_HW_FILTER(hwc, HNS3_PMU_HW_FILTER_GLOBAL); + return 0; + } + + if (hns3_pmu_is_enabled_func_mode(event, pmu_event)) + return hns3_pmu_set_func_mode(event, hns3_pmu); + + if (hns3_pmu_is_enabled_func_queue_mode(event, pmu_event)) + return hns3_pmu_set_func_queue_mode(event, hns3_pmu); + + if (hns3_pmu_is_enabled_port_mode(event, pmu_event)) { + HNS3_PMU_SET_HW_FILTER(hwc, HNS3_PMU_HW_FILTER_PORT); + return 0; + } + + if (hns3_pmu_is_enabled_port_tc_mode(event, pmu_event)) { + HNS3_PMU_SET_HW_FILTER(hwc, HNS3_PMU_HW_FILTER_PORT_TC); + return 0; + } + + if (hns3_pmu_is_enabled_func_intr_mode(event, hns3_pmu, pmu_event)) { + HNS3_PMU_SET_HW_FILTER(hwc, HNS3_PMU_HW_FILTER_FUNC_INTR); + return 0; + } + + return -ENOENT; +} + +static bool hns3_pmu_validate_event_group(struct perf_event *event) +{ + struct perf_event *sibling, *leader = event->group_leader; + struct perf_event *event_group[HNS3_PMU_MAX_HW_EVENTS]; + int counters = 1; + int num; + + event_group[0] = leader; + if (!is_software_event(leader)) { + if (leader->pmu != event->pmu) + return false; + + if (leader != event && !hns3_pmu_cmp_event(leader, event)) + event_group[counters++] = event; + } + + for_each_sibling_event(sibling, event->group_leader) { + if (is_software_event(sibling)) + continue; + + if (sibling->pmu != event->pmu) + return false; + + for (num = 0; num < counters; num++) { + if (hns3_pmu_cmp_event(event_group[num], sibling)) + break; + } + + if (num == counters) + event_group[counters++] = sibling; + } + + return counters <= HNS3_PMU_MAX_HW_EVENTS; +} + +static u32 hns3_pmu_get_filter_condition(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + u16 intr_id = hns3_pmu_get_intr(event); + u8 port_id = hns3_pmu_get_port(event); + u16 bdf = hns3_pmu_get_bdf(event); + u8 tc_id = hns3_pmu_get_tc(event); + u8 filter_mode; + + filter_mode = *(u8 *)hwc->addr_filters; + switch (filter_mode) { + case HNS3_PMU_HW_FILTER_PORT: + return FILTER_CONDITION_PORT(port_id); + case HNS3_PMU_HW_FILTER_PORT_TC: + return FILTER_CONDITION_PORT_TC(port_id, tc_id); + case HNS3_PMU_HW_FILTER_FUNC: + case HNS3_PMU_HW_FILTER_FUNC_QUEUE: + return GET_PCI_DEVFN(bdf); + case HNS3_PMU_HW_FILTER_FUNC_INTR: + return FILTER_CONDITION_FUNC_INTR(GET_PCI_DEVFN(bdf), intr_id); + default: + break; + } + + return 0; +} + +static void hns3_pmu_config_filter(struct perf_event *event) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + u8 event_type = hns3_pmu_get_event_type(event); + u8 subevent_id = hns3_pmu_get_subevent(event); + u16 queue_id = hns3_pmu_get_queue(event); + struct hw_perf_event *hwc = &event->hw; + u8 filter_mode = *(u8 *)hwc->addr_filters; + u16 bdf = hns3_pmu_get_bdf(event); + u32 idx = hwc->idx; + u32 val; + + val = event_type; + val |= subevent_id << HNS3_PMU_CTRL_SUBEVENT_S; + val |= filter_mode << HNS3_PMU_CTRL_FILTER_MODE_S; + val |= HNS3_PMU_EVENT_OVERFLOW_RESTART; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx, val); + + val = hns3_pmu_get_filter_condition(event); + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_HIGH, idx, val); + + if (filter_mode == HNS3_PMU_HW_FILTER_FUNC_QUEUE) + hns3_pmu_set_qid_para(hns3_pmu, idx, bdf, queue_id); +} + +static void hns3_pmu_enable_counter(struct hns3_pmu *hns3_pmu, + struct hw_perf_event *hwc) +{ + u32 idx = hwc->idx; + u32 val; + + val = hns3_pmu_readl(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx); + val |= HNS3_PMU_EVENT_EN; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx, val); +} + +static void hns3_pmu_disable_counter(struct hns3_pmu *hns3_pmu, + struct hw_perf_event *hwc) +{ + u32 idx = hwc->idx; + u32 val; + + val = hns3_pmu_readl(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx); + val &= ~HNS3_PMU_EVENT_EN; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx, val); +} + +static void hns3_pmu_enable_intr(struct hns3_pmu *hns3_pmu, + struct hw_perf_event *hwc) +{ + u32 idx = hwc->idx; + u32 val; + + val = hns3_pmu_readl(hns3_pmu, HNS3_PMU_REG_EVENT_INTR_MASK, idx); + val &= ~HNS3_PMU_INTR_MASK_OVERFLOW; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_INTR_MASK, idx, val); +} + +static void hns3_pmu_disable_intr(struct hns3_pmu *hns3_pmu, + struct hw_perf_event *hwc) +{ + u32 idx = hwc->idx; + u32 val; + + val = hns3_pmu_readl(hns3_pmu, HNS3_PMU_REG_EVENT_INTR_MASK, idx); + val |= HNS3_PMU_INTR_MASK_OVERFLOW; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_INTR_MASK, idx, val); +} + +static void hns3_pmu_clear_intr_status(struct hns3_pmu *hns3_pmu, u32 idx) +{ + u32 val; + + val = hns3_pmu_readl(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx); + val |= HNS3_PMU_EVENT_STATUS_RESET; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx, val); + + val = hns3_pmu_readl(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx); + val &= ~HNS3_PMU_EVENT_STATUS_RESET; + hns3_pmu_writel(hns3_pmu, HNS3_PMU_REG_EVENT_CTRL_LOW, idx, val); +} + +static u64 hns3_pmu_read_counter(struct perf_event *event) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + + return hns3_pmu_readq(hns3_pmu, event->hw.event_base, event->hw.idx); +} + +static void hns3_pmu_write_counter(struct perf_event *event, u64 value) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + u32 idx = event->hw.idx; + + hns3_pmu_writeq(hns3_pmu, HNS3_PMU_REG_EVENT_COUNTER, idx, value); + hns3_pmu_writeq(hns3_pmu, HNS3_PMU_REG_EVENT_EXT_COUNTER, idx, value); +} + +static void hns3_pmu_init_counter(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + local64_set(&hwc->prev_count, 0); + hns3_pmu_write_counter(event, 0); +} + +static int hns3_pmu_event_init(struct perf_event *event) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + struct hw_perf_event *hwc = &event->hw; + int idx; + int ret; + + if (event->attr.type != event->pmu->type) + return -ENOENT; + + /* Sampling is not supported */ + if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) + return -EOPNOTSUPP; + + event->cpu = hns3_pmu->on_cpu; + + idx = hns3_pmu_get_event_idx(hns3_pmu); + if (idx < 0) { + pci_err(hns3_pmu->pdev, "Up to %u events are supported!\n", + HNS3_PMU_MAX_HW_EVENTS); + return -EBUSY; + } + + hwc->idx = idx; + + ret = hns3_pmu_select_filter_mode(event, hns3_pmu); + if (ret) { + pci_err(hns3_pmu->pdev, "Invalid filter, ret = %d.\n", ret); + return ret; + } + + if (!hns3_pmu_validate_event_group(event)) { + pci_err(hns3_pmu->pdev, "Invalid event group.\n"); + return -EINVAL; + } + + if (hns3_pmu_get_ext_counter_used(event)) + hwc->event_base = HNS3_PMU_REG_EVENT_EXT_COUNTER; + else + hwc->event_base = HNS3_PMU_REG_EVENT_COUNTER; + + return 0; +} + +static void hns3_pmu_read(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + u64 new_cnt, prev_cnt, delta; + + do { + prev_cnt = local64_read(&hwc->prev_count); + new_cnt = hns3_pmu_read_counter(event); + } while (local64_cmpxchg(&hwc->prev_count, prev_cnt, new_cnt) != + prev_cnt); + + delta = new_cnt - prev_cnt; + local64_add(delta, &event->count); +} + +static void hns3_pmu_start(struct perf_event *event, int flags) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + struct hw_perf_event *hwc = &event->hw; + + if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED))) + return; + + WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE)); + hwc->state = 0; + + hns3_pmu_config_filter(event); + hns3_pmu_init_counter(event); + hns3_pmu_enable_intr(hns3_pmu, hwc); + hns3_pmu_enable_counter(hns3_pmu, hwc); + + perf_event_update_userpage(event); +} + +static void hns3_pmu_stop(struct perf_event *event, int flags) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + struct hw_perf_event *hwc = &event->hw; + + hns3_pmu_disable_counter(hns3_pmu, hwc); + hns3_pmu_disable_intr(hns3_pmu, hwc); + + WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED); + hwc->state |= PERF_HES_STOPPED; + + if (hwc->state & PERF_HES_UPTODATE) + return; + + /* Read hardware counter and update the perf counter statistics */ + hns3_pmu_read(event); + hwc->state |= PERF_HES_UPTODATE; +} + +static int hns3_pmu_add(struct perf_event *event, int flags) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + struct hw_perf_event *hwc = &event->hw; + int idx; + + hwc->state = PERF_HES_STOPPED | PERF_HES_UPTODATE; + + /* Check all working events to find a related event. */ + idx = hns3_pmu_find_related_event_idx(hns3_pmu, event); + if (idx < 0 && idx != -ENOENT) + return idx; + + /* Current event shares an enabled hardware event with related event */ + if (idx >= 0 && idx < HNS3_PMU_MAX_HW_EVENTS) { + hwc->idx = idx; + goto start_count; + } + + idx = hns3_pmu_get_event_idx(hns3_pmu); + if (idx < 0) + return idx; + + hwc->idx = idx; + hns3_pmu->hw_events[idx] = event; + +start_count: + if (flags & PERF_EF_START) + hns3_pmu_start(event, PERF_EF_RELOAD); + + return 0; +} + +static void hns3_pmu_del(struct perf_event *event, int flags) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(event->pmu); + struct hw_perf_event *hwc = &event->hw; + + hns3_pmu_stop(event, PERF_EF_UPDATE); + hns3_pmu->hw_events[hwc->idx] = NULL; + perf_event_update_userpage(event); +} + +static void hns3_pmu_enable(struct pmu *pmu) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(pmu); + u32 val; + + val = readl(hns3_pmu->base + HNS3_PMU_REG_GLOBAL_CTRL); + val |= HNS3_PMU_GLOBAL_START; + writel(val, hns3_pmu->base + HNS3_PMU_REG_GLOBAL_CTRL); +} + +static void hns3_pmu_disable(struct pmu *pmu) +{ + struct hns3_pmu *hns3_pmu = to_hns3_pmu(pmu); + u32 val; + + val = readl(hns3_pmu->base + HNS3_PMU_REG_GLOBAL_CTRL); + val &= ~HNS3_PMU_GLOBAL_START; + writel(val, hns3_pmu->base + HNS3_PMU_REG_GLOBAL_CTRL); +} + +static int hns3_pmu_alloc_pmu(struct pci_dev *pdev, struct hns3_pmu *hns3_pmu) +{ + u16 device_id; + char *name; + u32 val; + + hns3_pmu->base = pcim_iomap_table(pdev)[BAR_2]; + if (!hns3_pmu->base) { + pci_err(pdev, "ioremap failed\n"); + return -ENOMEM; + } + + hns3_pmu->hw_clk_freq = readl(hns3_pmu->base + HNS3_PMU_REG_CLOCK_FREQ); + + val = readl(hns3_pmu->base + HNS3_PMU_REG_BDF); + hns3_pmu->bdf_min = val & 0xffff; + hns3_pmu->bdf_max = val >> 16; + + val = readl(hns3_pmu->base + HNS3_PMU_REG_DEVICE_ID); + device_id = val & 0xffff; + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hns3_pmu_sicl_%u", device_id); + if (!name) + return -ENOMEM; + + hns3_pmu->pdev = pdev; + hns3_pmu->on_cpu = -1; + hns3_pmu->identifier = readl(hns3_pmu->base + HNS3_PMU_REG_VERSION); + hns3_pmu->pmu = (struct pmu) { + .name = name, + .module = THIS_MODULE, + .event_init = hns3_pmu_event_init, + .pmu_enable = hns3_pmu_enable, + .pmu_disable = hns3_pmu_disable, + .add = hns3_pmu_add, + .del = hns3_pmu_del, + .start = hns3_pmu_start, + .stop = hns3_pmu_stop, + .read = hns3_pmu_read, + .task_ctx_nr = perf_invalid_context, + .attr_groups = hns3_pmu_attr_groups, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, + }; + + return 0; +} + +static irqreturn_t hns3_pmu_irq(int irq, void *data) +{ + struct hns3_pmu *hns3_pmu = data; + u32 intr_status, idx; + + for (idx = 0; idx < HNS3_PMU_MAX_HW_EVENTS; idx++) { + intr_status = hns3_pmu_readl(hns3_pmu, + HNS3_PMU_REG_EVENT_INTR_STATUS, + idx); + + /* + * As each counter will restart from 0 when it is overflowed, + * extra processing is no need, just clear interrupt status. + */ + if (intr_status) + hns3_pmu_clear_intr_status(hns3_pmu, idx); + } + + return IRQ_HANDLED; +} + +static int hns3_pmu_online_cpu(unsigned int cpu, struct hlist_node *node) +{ + struct hns3_pmu *hns3_pmu; + + hns3_pmu = hlist_entry_safe(node, struct hns3_pmu, node); + if (!hns3_pmu) + return -ENODEV; + + if (hns3_pmu->on_cpu == -1) { + hns3_pmu->on_cpu = cpu; + irq_set_affinity(hns3_pmu->irq, cpumask_of(cpu)); + } + + return 0; +} + +static int hns3_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) +{ + struct hns3_pmu *hns3_pmu; + unsigned int target; + + hns3_pmu = hlist_entry_safe(node, struct hns3_pmu, node); + if (!hns3_pmu) + return -ENODEV; + + /* Nothing to do if this CPU doesn't own the PMU */ + if (hns3_pmu->on_cpu != cpu) + return 0; + + /* Choose a new CPU from all online cpus */ + target = cpumask_any_but(cpu_online_mask, cpu); + if (target >= nr_cpu_ids) + return 0; + + perf_pmu_migrate_context(&hns3_pmu->pmu, cpu, target); + hns3_pmu->on_cpu = target; + irq_set_affinity(hns3_pmu->irq, cpumask_of(target)); + + return 0; +} + +static void hns3_pmu_free_irq(void *data) +{ + struct pci_dev *pdev = data; + + pci_free_irq_vectors(pdev); +} + +static int hns3_pmu_irq_register(struct pci_dev *pdev, + struct hns3_pmu *hns3_pmu) +{ + int irq, ret; + + ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI); + if (ret < 0) { + pci_err(pdev, "failed to enable MSI vectors, ret = %d.\n", ret); + return ret; + } + + ret = devm_add_action(&pdev->dev, hns3_pmu_free_irq, pdev); + if (ret) { + pci_err(pdev, "failed to add free irq action, ret = %d.\n", ret); + return ret; + } + + irq = pci_irq_vector(pdev, 0); + ret = devm_request_irq(&pdev->dev, irq, hns3_pmu_irq, 0, + hns3_pmu->pmu.name, hns3_pmu); + if (ret) { + pci_err(pdev, "failed to register irq, ret = %d.\n", ret); + return ret; + } + + hns3_pmu->irq = irq; + + return 0; +} + +static int hns3_pmu_init_pmu(struct pci_dev *pdev, struct hns3_pmu *hns3_pmu) +{ + int ret; + + ret = hns3_pmu_alloc_pmu(pdev, hns3_pmu); + if (ret) + return ret; + + ret = hns3_pmu_irq_register(pdev, hns3_pmu); + if (ret) + return ret; + + ret = cpuhp_state_add_instance(CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE, + &hns3_pmu->node); + if (ret) { + pci_err(pdev, "failed to register hotplug, ret = %d.\n", ret); + return ret; + } + + ret = perf_pmu_register(&hns3_pmu->pmu, hns3_pmu->pmu.name, -1); + if (ret) { + pci_err(pdev, "failed to register perf PMU, ret = %d.\n", ret); + cpuhp_state_remove_instance(CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE, + &hns3_pmu->node); + } + + return ret; +} + +static void hns3_pmu_uninit_pmu(struct pci_dev *pdev) +{ + struct hns3_pmu *hns3_pmu = pci_get_drvdata(pdev); + + perf_pmu_unregister(&hns3_pmu->pmu); + cpuhp_state_remove_instance(CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE, + &hns3_pmu->node); +} + +static int hns3_pmu_init_dev(struct pci_dev *pdev) +{ + int ret; + + ret = pcim_enable_device(pdev); + if (ret) { + pci_err(pdev, "failed to enable pci device, ret = %d.\n", ret); + return ret; + } + + ret = pcim_iomap_regions(pdev, BIT(BAR_2), "hns3_pmu"); + if (ret < 0) { + pci_err(pdev, "failed to request pci region, ret = %d.\n", ret); + return ret; + } + + pci_set_master(pdev); + + return 0; +} + +static int hns3_pmu_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct hns3_pmu *hns3_pmu; + int ret; + + hns3_pmu = devm_kzalloc(&pdev->dev, sizeof(*hns3_pmu), GFP_KERNEL); + if (!hns3_pmu) + return -ENOMEM; + + ret = hns3_pmu_init_dev(pdev); + if (ret) + return ret; + + ret = hns3_pmu_init_pmu(pdev, hns3_pmu); + if (ret) { + pci_clear_master(pdev); + return ret; + } + + pci_set_drvdata(pdev, hns3_pmu); + + return ret; +} + +static void hns3_pmu_remove(struct pci_dev *pdev) +{ + hns3_pmu_uninit_pmu(pdev); + pci_clear_master(pdev); + pci_set_drvdata(pdev, NULL); +} + +static const struct pci_device_id hns3_pmu_ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, 0xa22b) }, + { 0, } +}; +MODULE_DEVICE_TABLE(pci, hns3_pmu_ids); + +static struct pci_driver hns3_pmu_driver = { + .name = "hns3_pmu", + .id_table = hns3_pmu_ids, + .probe = hns3_pmu_probe, + .remove = hns3_pmu_remove, +}; + +static int __init hns3_pmu_module_init(void) +{ + int ret; + + ret = cpuhp_setup_state_multi(CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE, + "AP_PERF_ARM_HNS3_PMU_ONLINE", + hns3_pmu_online_cpu, + hns3_pmu_offline_cpu); + if (ret) { + pr_err("failed to setup HNS3 PMU hotplug, ret = %d.\n", ret); + return ret; + } + + ret = pci_register_driver(&hns3_pmu_driver); + if (ret) { + pr_err("failed to register pci driver, ret = %d.\n", ret); + cpuhp_remove_multi_state(CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE); + } + + return ret; +} +module_init(hns3_pmu_module_init); + +static void __exit hns3_pmu_module_exit(void) +{ + pci_unregister_driver(&hns3_pmu_driver); + cpuhp_remove_multi_state(CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE); +} +module_exit(hns3_pmu_module_exit); + +MODULE_DESCRIPTION("HNS3 PMU driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 19f0dbfdd7fe..3e99fb4d3134 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -230,6 +230,7 @@ enum cpuhp_state { CPUHP_AP_PERF_ARM_HISI_PA_ONLINE, CPUHP_AP_PERF_ARM_HISI_SLLC_ONLINE, CPUHP_AP_PERF_ARM_HISI_PCIE_PMU_ONLINE, + CPUHP_AP_PERF_ARM_HNS3_PMU_ONLINE, CPUHP_AP_PERF_ARM_L2X0_ONLINE, CPUHP_AP_PERF_ARM_QCOM_L2_ONLINE, CPUHP_AP_PERF_ARM_QCOM_L3_ONLINE, -- cgit v1.2.3 From 491f10d08fdae10a177edf6af4f43b83b293114b Mon Sep 17 00:00:00 2001 From: Liang He Date: Fri, 15 Jul 2022 21:03:30 +0800 Subject: perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node() In pmu_sbi_setup_irqs(), we should call of_node_put() for the 'cpu' when breaking out of for_each_of_cput_node() as its refcount will be automatically increased and decreased during the iteration. Fixes: 4905ec2fb7e6 ("RISC-V: Add sscofpmf extension support") Signed-off-by: Liang He Reviewed-by: Atish Patra Reviewed-by: Andrew Jones Link: https://lore.kernel.org/r/20220715130330.443363-1-windhl@126.com Signed-off-by: Will Deacon --- drivers/perf/riscv_pmu_sbi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index 06fefcccf379..79a3de515ece 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -686,12 +686,15 @@ static int pmu_sbi_setup_irqs(struct riscv_pmu *pmu, struct platform_device *pde child = of_get_compatible_child(cpu, "riscv,cpu-intc"); if (!child) { pr_err("Failed to find INTC node\n"); + of_node_put(cpu); return -ENODEV; } domain = irq_find_host(child); of_node_put(child); - if (domain) + if (domain) { + of_node_put(cpu); break; + } } if (!domain) { pr_err("Failed to find INTC IRQ root domain\n"); -- cgit v1.2.3 From 92f2b8bafa3d6e89c750e9d301a8b7ab76aaa8b6 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Thu, 14 Jul 2022 11:43:02 +0530 Subject: drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX The arm_spe_pmu driver will enable SYS_PMSCR_EL1.CX in order to add CONTEXT packets into the traces, if the owner of the perf event runs with required capabilities i.e CAP_PERFMON or CAP_SYS_ADMIN via perfmon_capable() helper. The value of this bit is computed in the arm_spe_event_to_pmscr() function but the check for capabilities happens in the pmu event init callback i.e arm_spe_pmu_event_init(). This suggests that the value of the CX bit should remain consistent for the duration of the perf session. However, the function arm_spe_event_to_pmscr() may be called later during the event start callback i.e arm_spe_pmu_start() when the "current" process is not the owner of the perf session, hence the CX bit setting is currently not consistent. One way to fix this, is by caching the required value of the CX bit during the initialization of the PMU event, so that it remains consistent for the duration of the session. It uses currently unused 'event->hw.flags' element to cache perfmon_capable() value, which can be referred during event start callback to compute SYS_PMSCR_EL1.CX. This ensures consistent availability of context packets in the trace as per event owner capabilities. Drop BIT(SYS_PMSCR_EL1_CX_SHIFT) check in arm_spe_pmu_event_init(), because now CX bit cannot be set in arm_spe_event_to_pmscr() with perfmon_capable() disabled. Cc: Will Deacon Cc: Mark Rutland Cc: Alexey Budankov Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Fixes: d5d9696b0380 ("drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension") Reported-by: German Gomez Signed-off-by: Anshuman Khandual Reviewed-by: Suzuki K Poulose Link: https://lore.kernel.org/r/20220714061302.2715102-1-anshuman.khandual@arm.com Signed-off-by: Will Deacon --- drivers/perf/arm_spe_pmu.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c index db670b265897..b65a7d9640e1 100644 --- a/drivers/perf/arm_spe_pmu.c +++ b/drivers/perf/arm_spe_pmu.c @@ -39,6 +39,24 @@ #include #include +/* + * Cache if the event is allowed to trace Context information. + * This allows us to perform the check, i.e, perfmon_capable(), + * in the context of the event owner, once, during the event_init(). + */ +#define SPE_PMU_HW_FLAGS_CX BIT(0) + +static void set_spe_event_has_cx(struct perf_event *event) +{ + if (IS_ENABLED(CONFIG_PID_IN_CONTEXTIDR) && perfmon_capable()) + event->hw.flags |= SPE_PMU_HW_FLAGS_CX; +} + +static bool get_spe_event_has_cx(struct perf_event *event) +{ + return !!(event->hw.flags & SPE_PMU_HW_FLAGS_CX); +} + #define ARM_SPE_BUF_PAD_BYTE 0 struct arm_spe_pmu_buf { @@ -272,7 +290,7 @@ static u64 arm_spe_event_to_pmscr(struct perf_event *event) if (!attr->exclude_kernel) reg |= BIT(SYS_PMSCR_EL1_E1SPE_SHIFT); - if (IS_ENABLED(CONFIG_PID_IN_CONTEXTIDR) && perfmon_capable()) + if (get_spe_event_has_cx(event)) reg |= BIT(SYS_PMSCR_EL1_CX_SHIFT); return reg; @@ -709,10 +727,10 @@ static int arm_spe_pmu_event_init(struct perf_event *event) !(spe_pmu->features & SPE_PMU_FEAT_FILT_LAT)) return -EOPNOTSUPP; + set_spe_event_has_cx(event); reg = arm_spe_event_to_pmscr(event); if (!perfmon_capable() && (reg & (BIT(SYS_PMSCR_EL1_PA_SHIFT) | - BIT(SYS_PMSCR_EL1_CX_SHIFT) | BIT(SYS_PMSCR_EL1_PCT_SHIFT)))) return -EACCES; -- cgit v1.2.3