diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-12-19 12:41:22 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-06 16:46:44 +0000 |
| commit | 2d9e1ae06d8f0bb187ea083fabab2dfb6f589270 (patch) | |
| tree | 645030f8d06f171535483c73a4bce9f64376e3c9 | |
| parent | c265a762aa196de11f38f6f44cc817329f32a813 (diff) | |
[ARM] oprofile: add ARM11 UP support
Add oprofile glue for ARM11 (ARMv6) oprofile support. This
connects the ARM11 core profiling support to the oprofile code
for uniprocessor configurations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/oprofile/Kconfig | 10 | ||||
| -rw-r--r-- | arch/arm/oprofile/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/oprofile/common.c | 4 | ||||
| -rw-r--r-- | arch/arm/oprofile/op_arm_model.h | 2 | ||||
| -rw-r--r-- | arch/arm/oprofile/op_model_v6.c | 67 |
5 files changed, 84 insertions, 0 deletions
diff --git a/arch/arm/oprofile/Kconfig b/arch/arm/oprofile/Kconfig index 615a6b9503a4..40cc1894b517 100644 --- a/arch/arm/oprofile/Kconfig +++ b/arch/arm/oprofile/Kconfig @@ -19,8 +19,18 @@ config OPROFILE If unsure, say N. +if OPROFILE + +config OPROFILE_ARMV6 + bool + depends on CPU_V6 && !SMP + default y + select OPROFILE_ARM11_CORE + config OPROFILE_ARM11_CORE bool +endif + endmenu diff --git a/arch/arm/oprofile/Makefile b/arch/arm/oprofile/Makefile index 30352d6c4a25..3d5ff306db78 100644 --- a/arch/arm/oprofile/Makefile +++ b/arch/arm/oprofile/Makefile @@ -9,3 +9,4 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \ oprofile-y := $(DRIVER_OBJS) common.o backtrace.o oprofile-$(CONFIG_CPU_XSCALE) += op_model_xscale.o oprofile-$(CONFIG_OPROFILE_ARM11_CORE) += op_model_arm11_core.o +oprofile-$(CONFIG_OPROFILE_ARMV6) += op_model_v6.o diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c index 6f833358cd06..f1b24fbd8e67 100644 --- a/arch/arm/oprofile/common.c +++ b/arch/arm/oprofile/common.c @@ -135,6 +135,10 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) spec = &op_xscale_spec; #endif +#ifdef CONFIG_OPROFILE_ARMV6 + spec = &op_armv6_spec; +#endif + if (spec) { ret = spec->init(); if (ret < 0) diff --git a/arch/arm/oprofile/op_arm_model.h b/arch/arm/oprofile/op_arm_model.h index 38c6ad158547..ad1c962ed17b 100644 --- a/arch/arm/oprofile/op_arm_model.h +++ b/arch/arm/oprofile/op_arm_model.h @@ -24,6 +24,8 @@ struct op_arm_model_spec { extern struct op_arm_model_spec op_xscale_spec; #endif +extern struct op_arm_model_spec op_armv6_spec; + extern void arm_backtrace(struct pt_regs * const regs, unsigned int depth); extern int __init op_arm_init(struct oprofile_operations *ops, struct op_arm_model_spec *spec); diff --git a/arch/arm/oprofile/op_model_v6.c b/arch/arm/oprofile/op_model_v6.c new file mode 100644 index 000000000000..fe581383d3e2 --- /dev/null +++ b/arch/arm/oprofile/op_model_v6.c @@ -0,0 +1,67 @@ +/** + * @file op_model_v6.c + * ARM11 Performance Monitor Driver + * + * Based on op_model_xscale.c + * + * @remark Copyright 2000-2004 Deepak Saxena <dsaxena@mvista.com> + * @remark Copyright 2000-2004 MontaVista Software Inc + * @remark Copyright 2004 Dave Jiang <dave.jiang@intel.com> + * @remark Copyright 2004 Intel Corporation + * @remark Copyright 2004 Zwane Mwaikambo <zwane@arm.linux.org.uk> + * @remark Copyright 2004 OProfile Authors + * + * @remark Read the file COPYING + * + * @author Tony Lindgren <tony@atomide.com> + */ + +/* #define DEBUG */ +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/oprofile.h> +#include <linux/interrupt.h> +#include <asm/irq.h> +#include <asm/system.h> + +#include "op_counter.h" +#include "op_arm_model.h" +#include "op_model_arm11_core.h" + +static int irqs[] = { +#ifdef CONFIG_ARCH_OMAP2 + 3, +#endif +}; + +static void armv6_pmu_stop(void) +{ + arm11_stop_pmu(); + arm11_release_interrupts(irqs, ARRAY_SIZE(irqs)); +} + +static int armv6_pmu_start(void) +{ + int ret; + + ret = arm11_request_interrupts(irqs, ARRAY_SIZE(irqs)); + if (ret >= 0) + ret = arm11_start_pmu(); + + return ret; +} + +static int armv6_detect_pmu(void) +{ + return 0; +} + +struct op_arm_model_spec op_armv6_spec = { + .init = armv6_detect_pmu, + .num_counters = 3, + .setup_ctrs = arm11_setup_pmu, + .start = armv6_pmu_start, + .stop = armv6_pmu_stop, + .name = "arm/armv6", +}; |