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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 12:20:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 12:20:00 -0700
commite8a0b37d28ace440776c0a4fe3c65f5832a9a7ee (patch)
tree9475608c22849e5039d4dc00d3f8e3a30eeac2b9 /arch/arm/kernel/perf_event_v6.c
parentabea9629486cf973369a641e190e739b3010bb03 (diff)
parent002af195a8c720ca47c7884fd0390f3b327423b9 (diff)
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Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King: "Bigger items included in this update are: - A series of updates from Arnd for ARM randconfig build failures - Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to drivers/irqchip/ - Move ARMs SP804 timer to drivers/clocksource/ - Perf updates from Mark Rutland in preparation to move the ARM perf code into drivers/ so it can be shared with ARM64. - MCPM updates from Nicolas - Add support for taking platform serial number from DT - Re-implement Keystone2 physical address space switch to conform to architecture requirements - Clean up ARMv7 LPAE code, which goes in hand with the Keystone2 changes. - L2C cleanups to avoid unlocking caches if we're prevented by the secure support to unlock. - Avoid cleaning a potentially dirty cache containing stale data on CPU initialisation - Add ARM-only entry point for secondary startup (for machines that can only call into a Thumb kernel in ARM mode). Same thing is also done for the resume entry point. - Provide arch_irqs_disabled via asm-generic - Enlarge ARMv7M vector table - Always use BFD linker for VDSO, as gold doesn't accept some of the options we need. - Fix an incorrect BSYM (for Thumb symbols) usage, and convert all BSYM compiler macros to a "badr" (for branch address). - Shut up compiler warnings provoked by our cmpxchg() implementation. - Ensure bad xchg sizes fail to link" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits) ARM: Fix build if CLKDEV_LOOKUP is not configured ARM: fix new BSYM() usage introduced via for-arm-soc branch ARM: 8383/1: nommu: avoid deprecated source register on mov ARM: 8391/1: l2c: add options to overwrite prefetching behavior ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone ARM: 8384/1: VDSO: force use of BFD linker ARM: 8385/1: VDSO: group link options ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations ARM: remove __bad_xchg definition ARM: 8369/1: ARMv7M: define size of vector table for Vybrid ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion ARM: 8364/1: fix BE32 module loading ARM: 8360/1: add secondary_startup_arm prototype in header file ARM: 8359/1: correct secondary_startup_arm mode ARM: proc-v7: sanitise and document registers around errata ARM: proc-v7: clean up MIDR access ...
Diffstat (limited to 'arch/arm/kernel/perf_event_v6.c')
-rw-r--r--arch/arm/kernel/perf_event_v6.c49
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 */