Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2d9e1ae06d8f0bb187ea083fabab2dfb6f589270
Commit: 2d9e1ae06d8f0bb187ea083fabab2dfb6f589270
Parent: c265a762aa196de11f38f6f44cc817329f32a813
Author: Russell King <[EMAIL PROTECTED]>
AuthorDate: Tue Dec 19 12:41:22 2006 +0000
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Tue Feb 6 16:46:44 2007 +0000
[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 <[EMAIL PROTECTED]>
---
arch/arm/oprofile/Kconfig | 10 ++++++
arch/arm/oprofile/Makefile | 1 +
arch/arm/oprofile/common.c | 4 ++
arch/arm/oprofile/op_arm_model.h | 2 +
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 615a6b9..40cc189 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 30352d6..3d5ff30 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 6f83335..f1b24fb 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 38c6ad1..ad1c962 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 0000000..fe58138
--- /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 <[EMAIL PROTECTED]>
+ * @remark Copyright 2000-2004 MontaVista Software Inc
+ * @remark Copyright 2004 Dave Jiang <[EMAIL PROTECTED]>
+ * @remark Copyright 2004 Intel Corporation
+ * @remark Copyright 2004 Zwane Mwaikambo <[EMAIL PROTECTED]>
+ * @remark Copyright 2004 OProfile Authors
+ *
+ * @remark Read the file COPYING
+ *
+ * @author Tony Lindgren <[EMAIL PROTECTED]>
+ */
+
+/* #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",
+};
-
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