diff options
Diffstat (limited to 'arch/arm/kernel/perf_event_v6.c')
| -rw-r--r-- | arch/arm/kernel/perf_event_v6.c | 49 |
1 files changed, 36 insertions, 13 deletions
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c index f2ffd5c542ed..09f83e414a72 100644 --- a/arch/arm/kernel/perf_event_v6.c +++ b/arch/arm/kernel/perf_event_v6.c @@ -31,6 +31,14 @@ */ #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) + +#include <asm/cputype.h> +#include <asm/irq_regs.h> +#include <asm/pmu.h> + +#include <linux/of.h> +#include <linux/platform_device.h> + enum armv6_perf_types { ARMV6_PERFCTR_ICACHE_MISS = 0x0, ARMV6_PERFCTR_IBUF_STALL = 0x1, @@ -543,24 +551,39 @@ static int armv6mpcore_pmu_init(struct arm_pmu *cpu_pmu) return 0; } -#else -static int armv6_1136_pmu_init(struct arm_pmu *cpu_pmu) -{ - return -ENODEV; -} -static int armv6_1156_pmu_init(struct arm_pmu *cpu_pmu) -{ - return -ENODEV; -} +static struct of_device_id armv6_pmu_of_device_ids[] = { + {.compatible = "arm,arm11mpcore-pmu", .data = armv6mpcore_pmu_init}, + {.compatible = "arm,arm1176-pmu", .data = armv6_1176_pmu_init}, + {.compatible = "arm,arm1136-pmu", .data = armv6_1136_pmu_init}, + { /* sentinel value */ } +}; -static int armv6_1176_pmu_init(struct arm_pmu *cpu_pmu) +static const struct pmu_probe_info armv6_pmu_probe_table[] = { + ARM_PMU_PROBE(ARM_CPU_PART_ARM1136, armv6_1136_pmu_init), + ARM_PMU_PROBE(ARM_CPU_PART_ARM1156, armv6_1156_pmu_init), + ARM_PMU_PROBE(ARM_CPU_PART_ARM1176, armv6_1176_pmu_init), + ARM_PMU_PROBE(ARM_CPU_PART_ARM11MPCORE, armv6mpcore_pmu_init), + { /* sentinel value */ } +}; + +static int armv6_pmu_device_probe(struct platform_device *pdev) { - return -ENODEV; + return arm_pmu_device_probe(pdev, armv6_pmu_of_device_ids, + armv6_pmu_probe_table); } -static int armv6mpcore_pmu_init(struct arm_pmu *cpu_pmu) +static struct platform_driver armv6_pmu_driver = { + .driver = { + .name = "armv6-pmu", + .of_match_table = armv6_pmu_of_device_ids, + }, + .probe = armv6_pmu_device_probe, +}; + +static int __init register_armv6_pmu_driver(void) { - return -ENODEV; + return platform_driver_register(&armv6_pmu_driver); } +device_initcall(register_armv6_pmu_driver); #endif /* CONFIG_CPU_V6 || CONFIG_CPU_V6K */ |