From: Yicong Yang <yangyicong@hisilicon.com> driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC0GTV ---------------------------------------------------------------------- HiSilicon Uncore PMUs are identified by the IDs of the topology element on which the PMUs are located. Add a new separate struct hisi_pmu_toplogy to encapsulate this information. Add additional documentation on the meaning of each ID. - make sccl_id and sicl_id into a union since they're exclusive. It can also be accessed by scl_id if the SICL/SCCL distinction is not relevant - make index_id and sub_id signed so -1 may be used to indicate the PMU doesn't have this topology element or it could not be retrieved. This patch should have no functional changes. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> --- drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c | 12 +++--- drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 18 ++++----- drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 12 +++--- drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 8 ++-- drivers/perf/hisilicon/hisi_uncore_pa_pmu.c | 14 +++---- drivers/perf/hisilicon/hisi_uncore_pmu.c | 7 ++-- drivers/perf/hisilicon/hisi_uncore_pmu.h | 38 +++++++++++++++---- drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c | 10 ++--- drivers/perf/hisilicon/hisi_uncore_uc_pmu.c | 11 +++--- 9 files changed, 78 insertions(+), 52 deletions(-) diff --git a/drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c b/drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c index a383ae07fd0c..982df850b912 100644 --- a/drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c @@ -181,19 +181,19 @@ static int hisi_cpa_pmu_init_data(struct platform_device *pdev, struct hisi_pmu *cpa_pmu) { if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &cpa_pmu->sicl_id)) { + &cpa_pmu->topo.sicl_id)) { dev_err(&pdev->dev, "Can not read sicl-id\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,idx-id", - &cpa_pmu->index_id)) { + &cpa_pmu->topo.index_id)) { dev_err(&pdev->dev, "Cannot read idx-id\n"); return -EINVAL; } - cpa_pmu->ccl_id = -1; - cpa_pmu->sccl_id = -1; + cpa_pmu->topo.ccl_id = -1; + cpa_pmu->topo.sccl_id = -1; cpa_pmu->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(cpa_pmu->base)) return PTR_ERR(cpa_pmu->base); @@ -311,8 +311,8 @@ static int hisi_cpa_pmu_probe(struct platform_device *pdev) if (ret) return ret; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sicl%d_cpa%u", - cpa_pmu->sicl_id, cpa_pmu->index_id); + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sicl%d_cpa%d", + cpa_pmu->topo.sicl_id, cpa_pmu->topo.index_id); if (!name) return -ENOMEM; diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c index f80263c1f98a..d2b657254d5f 100644 --- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c @@ -279,18 +279,18 @@ static int hisi_ddrc_pmu_init_data(struct platform_device *pdev, * DDRC PMU, while SCCL_ID is in MPIDR[aff2]. */ if (device_property_read_u32(&pdev->dev, "hisilicon,ch-id", - &ddrc_pmu->index_id)) { + &ddrc_pmu->topo.index_id)) { dev_err(&pdev->dev, "Can not read ddrc channel-id!\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &ddrc_pmu->sccl_id)) { + &ddrc_pmu->topo.sccl_id)) { dev_err(&pdev->dev, "Can not read ddrc sccl-id!\n"); return -EINVAL; } /* DDRC PMUs only share the same SCCL */ - ddrc_pmu->ccl_id = -1; + ddrc_pmu->topo.ccl_id = -1; ddrc_pmu->dev_info = device_get_match_data(&pdev->dev); if (!ddrc_pmu->dev_info) @@ -305,7 +305,7 @@ static int hisi_ddrc_pmu_init_data(struct platform_device *pdev, ddrc_pmu->identifier = readl(ddrc_pmu->base + DDRC_VERSION); if (ddrc_pmu->identifier >= HISI_PMU_V2) { if (device_property_read_u32(&pdev->dev, "hisilicon,sub-id", - &ddrc_pmu->sub_id)) { + &ddrc_pmu->topo.sub_id)) { dev_err(&pdev->dev, "Can not read sub-id!\n"); return -EINVAL; } @@ -481,13 +481,13 @@ static int hisi_ddrc_pmu_probe(struct platform_device *pdev) if (ddrc_pmu->identifier >= HISI_PMU_V2) name = devm_kasprintf(&pdev->dev, GFP_KERNEL, - "hisi_sccl%u_ddrc%u_%u", - ddrc_pmu->sccl_id, ddrc_pmu->index_id, - ddrc_pmu->sub_id); + "hisi_sccl%d_ddrc%d_%d", + ddrc_pmu->topo.sccl_id, ddrc_pmu->topo.index_id, + ddrc_pmu->topo.sub_id); else name = devm_kasprintf(&pdev->dev, GFP_KERNEL, - "hisi_sccl%u_ddrc%u", ddrc_pmu->sccl_id, - ddrc_pmu->index_id); + "hisi_sccl%d_ddrc%d", ddrc_pmu->topo.sccl_id, + ddrc_pmu->topo.index_id); if (!name) return -ENOMEM; diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c index 56bf72787630..c4283da17f05 100644 --- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c @@ -300,7 +300,7 @@ static int hisi_hha_pmu_init_data(struct platform_device *pdev, * SCCL_ID is in MPIDR[aff2]. */ if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &hha_pmu->sccl_id)) { + &hha_pmu->topo.sccl_id)) { dev_err(&pdev->dev, "Can not read hha sccl-id!\n"); return -EINVAL; } @@ -310,7 +310,7 @@ static int hisi_hha_pmu_init_data(struct platform_device *pdev, * both "hisilicon, idx-id" as preference, if available. */ if (device_property_read_u32(&pdev->dev, "hisilicon,idx-id", - &hha_pmu->index_id)) { + &hha_pmu->topo.index_id)) { status = acpi_evaluate_integer(ACPI_HANDLE(&pdev->dev), "_UID", NULL, &id); if (ACPI_FAILURE(status)) { @@ -318,10 +318,10 @@ static int hisi_hha_pmu_init_data(struct platform_device *pdev, return -EINVAL; } - hha_pmu->index_id = id; + hha_pmu->topo.index_id = id; } /* HHA PMUs only share the same SCCL */ - hha_pmu->ccl_id = -1; + hha_pmu->topo.ccl_id = -1; hha_pmu->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(hha_pmu->base)) { @@ -510,8 +510,8 @@ static int hisi_hha_pmu_probe(struct platform_device *pdev) if (ret) return ret; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%u_hha%u", - hha_pmu->sccl_id, hha_pmu->index_id); + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%d_hha%d", + hha_pmu->topo.sccl_id, hha_pmu->topo.index_id); if (!name) return -ENOMEM; diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c index c469d86d335d..1c0783a643f7 100644 --- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c @@ -360,13 +360,13 @@ static int hisi_l3c_pmu_init_data(struct platform_device *pdev, * SCCL_ID is in MPIDR[aff2] and CCL_ID is in MPIDR[aff1]. */ if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &l3c_pmu->sccl_id)) { + &l3c_pmu->topo.sccl_id)) { dev_err(&pdev->dev, "Can not read l3c sccl-id!\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,ccl-id", - &l3c_pmu->ccl_id)) { + &l3c_pmu->topo.ccl_id)) { dev_err(&pdev->dev, "Can not read l3c ccl-id!\n"); return -EINVAL; } @@ -544,8 +544,8 @@ static int hisi_l3c_pmu_probe(struct platform_device *pdev) if (ret) return ret; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%u_l3c%u", - l3c_pmu->sccl_id, l3c_pmu->ccl_id); + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%d_l3c%d", + l3c_pmu->topo.sccl_id, l3c_pmu->topo.ccl_id); if (!name) return -ENOMEM; diff --git a/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c index 4cd5341cb1aa..57535defff71 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c @@ -274,19 +274,19 @@ static int hisi_pa_pmu_init_data(struct platform_device *pdev, * to identify the PA PMU. */ if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &pa_pmu->sicl_id)) { + &pa_pmu->topo.sicl_id)) { dev_err(&pdev->dev, "Cannot read sicl-id!\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,idx-id", - &pa_pmu->index_id)) { + &pa_pmu->topo.index_id)) { dev_err(&pdev->dev, "Cannot read idx-id!\n"); return -EINVAL; } - pa_pmu->ccl_id = -1; - pa_pmu->sccl_id = -1; + pa_pmu->topo.ccl_id = -1; + pa_pmu->topo.sccl_id = -1; pa_pmu->dev_info = device_get_match_data(&pdev->dev); if (!pa_pmu->dev_info) @@ -488,9 +488,9 @@ static int hisi_pa_pmu_probe(struct platform_device *pdev) if (ret) return ret; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sicl%d_%s%u", - pa_pmu->sicl_id, pa_pmu->dev_info->name, - pa_pmu->index_id); + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sicl%d_%s%d", + pa_pmu->topo.sicl_id, pa_pmu->dev_info->name, + pa_pmu->topo.index_id); if (!name) return -ENOMEM; diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 2d101d373212..709c79a0f8ff 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -458,18 +458,19 @@ static void hisi_read_sccl_and_ccl_id(int *scclp, int *cclp) */ static bool hisi_pmu_cpu_is_associated_pmu(struct hisi_pmu *hisi_pmu) { + struct hisi_pmu_topology *topo = &hisi_pmu->topo; int sccl_id, ccl_id; - if (hisi_pmu->ccl_id == -1) { + if (topo->ccl_id == -1) { /* If CCL_ID is -1, the PMU only shares the same SCCL */ hisi_read_sccl_and_ccl_id(&sccl_id, NULL); - return sccl_id == hisi_pmu->sccl_id; + return sccl_id == topo->sccl_id; } hisi_read_sccl_and_ccl_id(&sccl_id, &ccl_id); - return sccl_id == hisi_pmu->sccl_id && ccl_id == hisi_pmu->ccl_id; + return sccl_id == topo->sccl_id && ccl_id == topo->ccl_id; } int hisi_uncore_pmu_online_cpu(unsigned int cpu, struct hlist_node *node) diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h index 0719dac40434..4bb33118a165 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.h +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h @@ -81,12 +81,43 @@ struct hisi_pmu_hwevents { const struct attribute_group **attr_groups; }; +/** + * struct hisi_pmu_topology - Describe the topology hierarchy on which the PMU + * is located. + * @sccl_id: ID of the SCCL on which the PMU locate is located. + * @sicl_id: ID of the SICL on which the PMU locate is located. + * @scl_id: ID used by the core which is unaware of the SCCL/SICL. + * @ccl_id: ID of the CCL (CPU cluster) on which the PMU is located. + * @index_id: the ID of the PMU module if there're several PMUs at a + * particularly location in the topology. + * @sub_id: submodule ID of the PMU. For example we use this for DDRC PMU v2 + * since each DDRC has more than one DMC + * + * The ID will be -1 if the PMU isn't located on a certain topology. + */ +struct hisi_pmu_topology { + /* + * SCCL (Super CPU CLuster) and SICL (Super I/O Cluster) are parallel + * so a PMU cannot locate on a SCCL and a SICL. If the SCCL/SICL + * distinction is not relevant, use scl_id instead. + */ + union { + int sccl_id; + int sicl_id; + int scl_id; + }; + int ccl_id; + int index_id; + int sub_id; +}; + /* Generic pmu struct for different pmu types */ struct hisi_pmu { struct pmu pmu; const struct hisi_uncore_ops *ops; const struct hisi_pmu_dev_info *dev_info; struct hisi_pmu_hwevents pmu_events; + struct hisi_pmu_topology topo; /* * CPUs associated to the PMU and are preferred to use for counting. * Could be empty if PMU has no association (e.g. PMU on SICL), in @@ -98,14 +129,7 @@ struct hisi_pmu { int irq; struct device *dev; struct hlist_node node; - int sccl_id; - int sicl_id; - int ccl_id; void __iomem *base; - /* the ID of the PMU modules */ - u32 index_id; - /* For DDRC PMU v2: each DDRC has more than one DMC */ - u32 sub_id; int num_counters; int counter_bits; /* check event code range */ diff --git a/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c index 3dc428d659ce..dd1614014448 100644 --- a/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c @@ -293,19 +293,19 @@ static int hisi_sllc_pmu_init_data(struct platform_device *pdev, * while SCCL_ID is from MPIDR_EL1 by CPU. */ if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &sllc_pmu->sccl_id)) { + &sllc_pmu->topo.sccl_id)) { dev_err(&pdev->dev, "Cannot read sccl-id!\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,idx-id", - &sllc_pmu->index_id)) { + &sllc_pmu->topo.index_id)) { dev_err(&pdev->dev, "Cannot read idx-id!\n"); return -EINVAL; } /* SLLC PMUs only share the same SCCL */ - sllc_pmu->ccl_id = -1; + sllc_pmu->topo.ccl_id = -1; sllc_pmu->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(sllc_pmu->base)) { @@ -433,8 +433,8 @@ static int hisi_sllc_pmu_probe(struct platform_device *pdev) if (ret) return ret; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%u_sllc%u", - sllc_pmu->sccl_id, sllc_pmu->index_id); + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%d_sllc%d", + sllc_pmu->topo.sccl_id, sllc_pmu->topo.index_id); if (!name) return -ENOMEM; diff --git a/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c index 2233d288ccf5..bc51d45c8ef9 100644 --- a/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c @@ -372,19 +372,19 @@ static int hisi_uc_pmu_init_data(struct platform_device *pdev, * They have some CCLs per SCCL and then 4 UC PMU per CCL. */ if (device_property_read_u32(&pdev->dev, "hisilicon,scl-id", - &uc_pmu->sccl_id)) { + &uc_pmu->topo.sccl_id)) { dev_err(&pdev->dev, "Can not read uc sccl-id!\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,ccl-id", - &uc_pmu->ccl_id)) { + &uc_pmu->topo.ccl_id)) { dev_err(&pdev->dev, "Can not read uc ccl-id!\n"); return -EINVAL; } if (device_property_read_u32(&pdev->dev, "hisilicon,sub-id", - &uc_pmu->sub_id)) { + &uc_pmu->topo.sub_id)) { dev_err(&pdev->dev, "Can not read sub-id!\n"); return -EINVAL; } @@ -538,8 +538,9 @@ static int hisi_uc_pmu_probe(struct platform_device *pdev) if (ret) return ret; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%d_uc%d_%u", - uc_pmu->sccl_id, uc_pmu->ccl_id, uc_pmu->sub_id); + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sccl%d_uc%d_%d", + uc_pmu->topo.sccl_id, uc_pmu->topo.ccl_id, + uc_pmu->topo.sub_id); if (!name) return -ENOMEM; -- 2.33.0