// SPDX-License-Identifier: GPL-2.0-or-later /* * APM X-Gene SoC PMU (Performance Monitor Unit) * * Copyright (c) 2016, Applied Micro Circuits Corporation * Author: Hoan Tran <[email protected]> * Tai Nguyen <[email protected]> */ #include <linux/acpi.h> #include <linux/clk.h> #include <linux/cpuhotplug.h> #include <linux/cpumask.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of_address.h> #include <linux/perf_event.h> #include <linux/platform_device.h> #include <linux/property.h> #include <linux/regmap.h> #include <linux/slab.h> #define CSW_CSWCR … #define CSW_CSWCR_DUALMCB_MASK … #define CSW_CSWCR_MCB0_ROUTING(x) … #define CSW_CSWCR_MCB1_ROUTING(x) … #define MCBADDRMR … #define MCBADDRMR_DUALMCU_MODE_MASK … #define PCPPMU_INTSTATUS_REG … #define PCPPMU_INTMASK_REG … #define PCPPMU_INTMASK … #define PCPPMU_INTENMASK … #define PCPPMU_INTCLRMASK … #define PCPPMU_INT_MCU … #define PCPPMU_INT_MCB … #define PCPPMU_INT_L3C … #define PCPPMU_INT_IOB … #define PCPPMU_V3_INTMASK … #define PCPPMU_V3_INTENMASK … #define PCPPMU_V3_INTCLRMASK … #define PCPPMU_V3_INT_MCU … #define PCPPMU_V3_INT_MCB … #define PCPPMU_V3_INT_L3C … #define PCPPMU_V3_INT_IOB … #define PMU_MAX_COUNTERS … #define PMU_CNT_MAX_PERIOD … #define PMU_V3_CNT_MAX_PERIOD … #define PMU_OVERFLOW_MASK … #define PMU_PMCR_E … #define PMU_PMCR_P … #define PMU_PMEVCNTR0 … #define PMU_PMEVCNTR1 … #define PMU_PMEVCNTR2 … #define PMU_PMEVCNTR3 … #define PMU_PMEVTYPER0 … #define PMU_PMEVTYPER1 … #define PMU_PMEVTYPER2 … #define PMU_PMEVTYPER3 … #define PMU_PMAMR0 … #define PMU_PMAMR1 … #define PMU_PMCNTENSET … #define PMU_PMCNTENCLR … #define PMU_PMINTENSET … #define PMU_PMINTENCLR … #define PMU_PMOVSR … #define PMU_PMCR … /* PMU registers for V3 */ #define PMU_PMOVSCLR … #define PMU_PMOVSSET … #define to_pmu_dev(p) … #define GET_CNTR(ev) … #define GET_EVENTID(ev) … #define GET_AGENTID(ev) … #define GET_AGENT1ID(ev) … struct hw_pmu_info { … }; struct xgene_pmu_dev { … }; struct xgene_pmu_ops { … }; struct xgene_pmu { … }; struct xgene_pmu_dev_ctx { … }; struct xgene_pmu_data { … }; enum xgene_pmu_version { … }; enum xgene_pmu_dev_type { … }; /* * sysfs format attributes */ #define XGENE_PMU_FORMAT_ATTR(_name, _config) … static struct attribute *l3c_pmu_format_attrs[] = …; static struct attribute *iob_pmu_format_attrs[] = …; static struct attribute *mcb_pmu_format_attrs[] = …; static struct attribute *mc_pmu_format_attrs[] = …; static const struct attribute_group l3c_pmu_format_attr_group = …; static const struct attribute_group iob_pmu_format_attr_group = …; static const struct attribute_group mcb_pmu_format_attr_group = …; static const struct attribute_group mc_pmu_format_attr_group = …; static struct attribute *l3c_pmu_v3_format_attrs[] = …; static struct attribute *iob_pmu_v3_format_attrs[] = …; static struct attribute *iob_slow_pmu_v3_format_attrs[] = …; static struct attribute *mcb_pmu_v3_format_attrs[] = …; static struct attribute *mc_pmu_v3_format_attrs[] = …; static const struct attribute_group l3c_pmu_v3_format_attr_group = …; static const struct attribute_group iob_pmu_v3_format_attr_group = …; static const struct attribute_group iob_slow_pmu_v3_format_attr_group = …; static const struct attribute_group mcb_pmu_v3_format_attr_group = …; static const struct attribute_group mc_pmu_v3_format_attr_group = …; /* * sysfs event attributes */ static ssize_t xgene_pmu_event_show(struct device *dev, struct device_attribute *attr, char *buf) { … } #define XGENE_PMU_EVENT_ATTR(_name, _config) … static struct attribute *l3c_pmu_events_attrs[] = …; static struct attribute *iob_pmu_events_attrs[] = …; static struct attribute *mcb_pmu_events_attrs[] = …; static struct attribute *mc_pmu_events_attrs[] = …; static const struct attribute_group l3c_pmu_events_attr_group = …; static const struct attribute_group iob_pmu_events_attr_group = …; static const struct attribute_group mcb_pmu_events_attr_group = …; static const struct attribute_group mc_pmu_events_attr_group = …; static struct attribute *l3c_pmu_v3_events_attrs[] = …; static struct attribute *iob_fast_pmu_v3_events_attrs[] = …; static struct attribute *iob_slow_pmu_v3_events_attrs[] = …; static struct attribute *mcb_pmu_v3_events_attrs[] = …; static struct attribute *mc_pmu_v3_events_attrs[] = …; static const struct attribute_group l3c_pmu_v3_events_attr_group = …; static const struct attribute_group iob_fast_pmu_v3_events_attr_group = …; static const struct attribute_group iob_slow_pmu_v3_events_attr_group = …; static const struct attribute_group mcb_pmu_v3_events_attr_group = …; static const struct attribute_group mc_pmu_v3_events_attr_group = …; /* * sysfs cpumask attributes */ static ssize_t cpumask_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RO(cpumask); static struct attribute *xgene_pmu_cpumask_attrs[] = …; static const struct attribute_group pmu_cpumask_attr_group = …; /* * Per PMU device attribute groups of PMU v1 and v2 */ static const struct attribute_group *l3c_pmu_attr_groups[] = …; static const struct attribute_group *iob_pmu_attr_groups[] = …; static const struct attribute_group *mcb_pmu_attr_groups[] = …; static const struct attribute_group *mc_pmu_attr_groups[] = …; /* * Per PMU device attribute groups of PMU v3 */ static const struct attribute_group *l3c_pmu_v3_attr_groups[] = …; static const struct attribute_group *iob_fast_pmu_v3_attr_groups[] = …; static const struct attribute_group *iob_slow_pmu_v3_attr_groups[] = …; static const struct attribute_group *mcb_pmu_v3_attr_groups[] = …; static const struct attribute_group *mc_pmu_v3_attr_groups[] = …; static int get_next_avail_cntr(struct xgene_pmu_dev *pmu_dev) { … } static void clear_avail_cntr(struct xgene_pmu_dev *pmu_dev, int cntr) { … } static inline void xgene_pmu_mask_int(struct xgene_pmu *xgene_pmu) { … } static inline void xgene_pmu_v3_mask_int(struct xgene_pmu *xgene_pmu) { … } static inline void xgene_pmu_unmask_int(struct xgene_pmu *xgene_pmu) { … } static inline void xgene_pmu_v3_unmask_int(struct xgene_pmu *xgene_pmu) { … } static inline u64 xgene_pmu_read_counter32(struct xgene_pmu_dev *pmu_dev, int idx) { … } static inline u64 xgene_pmu_read_counter64(struct xgene_pmu_dev *pmu_dev, int idx) { … } static inline void xgene_pmu_write_counter32(struct xgene_pmu_dev *pmu_dev, int idx, u64 val) { … } static inline void xgene_pmu_write_counter64(struct xgene_pmu_dev *pmu_dev, int idx, u64 val) { … } static inline void xgene_pmu_write_evttype(struct xgene_pmu_dev *pmu_dev, int idx, u32 val) { … } static inline void xgene_pmu_write_agentmsk(struct xgene_pmu_dev *pmu_dev, u32 val) { … } static inline void xgene_pmu_v3_write_agentmsk(struct xgene_pmu_dev *pmu_dev, u32 val) { … } static inline void xgene_pmu_write_agent1msk(struct xgene_pmu_dev *pmu_dev, u32 val) { … } static inline void xgene_pmu_v3_write_agent1msk(struct xgene_pmu_dev *pmu_dev, u32 val) { … } static inline void xgene_pmu_enable_counter(struct xgene_pmu_dev *pmu_dev, int idx) { … } static inline void xgene_pmu_disable_counter(struct xgene_pmu_dev *pmu_dev, int idx) { … } static inline void xgene_pmu_enable_counter_int(struct xgene_pmu_dev *pmu_dev, int idx) { … } static inline void xgene_pmu_disable_counter_int(struct xgene_pmu_dev *pmu_dev, int idx) { … } static inline void xgene_pmu_reset_counters(struct xgene_pmu_dev *pmu_dev) { … } static inline void xgene_pmu_start_counters(struct xgene_pmu_dev *pmu_dev) { … } static inline void xgene_pmu_stop_counters(struct xgene_pmu_dev *pmu_dev) { … } static void xgene_perf_pmu_enable(struct pmu *pmu) { … } static void xgene_perf_pmu_disable(struct pmu *pmu) { … } static int xgene_perf_event_init(struct perf_event *event) { … } static void xgene_perf_enable_event(struct perf_event *event) { … } static void xgene_perf_disable_event(struct perf_event *event) { … } static void xgene_perf_event_set_period(struct perf_event *event) { … } static void xgene_perf_event_update(struct perf_event *event) { … } static void xgene_perf_read(struct perf_event *event) { … } static void xgene_perf_start(struct perf_event *event, int flags) { … } static void xgene_perf_stop(struct perf_event *event, int flags) { … } static int xgene_perf_add(struct perf_event *event, int flags) { … } static void xgene_perf_del(struct perf_event *event, int flags) { … } static int xgene_init_perf(struct xgene_pmu_dev *pmu_dev, char *name) { … } static int xgene_pmu_dev_add(struct xgene_pmu *xgene_pmu, struct xgene_pmu_dev_ctx *ctx) { … } static void _xgene_pmu_isr(int irq, struct xgene_pmu_dev *pmu_dev) { … } static irqreturn_t xgene_pmu_isr(int irq, void *dev_id) { … } static int acpi_pmu_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } static int acpi_pmu_v3_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } static int fdt_pmu_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } static int xgene_pmu_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } static char *xgene_pmu_dev_name(struct device *dev, u32 type, int id) { … } #if defined(CONFIG_ACPI) static struct xgene_pmu_dev_ctx *acpi_get_pmu_hw_inf(struct xgene_pmu *xgene_pmu, struct acpi_device *adev, u32 type) { … } static const struct acpi_device_id xgene_pmu_acpi_type_match[] = …; static const struct acpi_device_id *xgene_pmu_acpi_match_type( const struct acpi_device_id *ids, struct acpi_device *adev) { … } static acpi_status acpi_pmu_dev_add(acpi_handle handle, u32 level, void *data, void **return_value) { … } static int acpi_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } #else static int acpi_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { return 0; } #endif static struct xgene_pmu_dev_ctx *fdt_get_pmu_hw_inf(struct xgene_pmu *xgene_pmu, struct device_node *np, u32 type) { … } static int fdt_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } static int xgene_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu, struct platform_device *pdev) { … } static const struct xgene_pmu_data xgene_pmu_data = …; static const struct xgene_pmu_data xgene_pmu_v2_data = …; #ifdef CONFIG_ACPI static const struct xgene_pmu_data xgene_pmu_v3_data = …; #endif static const struct xgene_pmu_ops xgene_pmu_ops = …; static const struct xgene_pmu_ops xgene_pmu_v3_ops = …; static const struct of_device_id xgene_pmu_of_match[] = …; MODULE_DEVICE_TABLE(of, xgene_pmu_of_match); #ifdef CONFIG_ACPI static const struct acpi_device_id xgene_pmu_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, xgene_pmu_acpi_match); #endif static int xgene_pmu_online_cpu(unsigned int cpu, struct hlist_node *node) { … } static int xgene_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) { … } static int xgene_pmu_probe(struct platform_device *pdev) { … } static void xgene_pmu_dev_cleanup(struct xgene_pmu *xgene_pmu, struct list_head *pmus) { … } static void xgene_pmu_remove(struct platform_device *pdev) { … } static struct platform_driver xgene_pmu_driver = …; builtin_platform_driver(…) …;
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