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-rw-r--r--arch/powerpc/include/asm/hw_breakpoint.h5
-rw-r--r--arch/powerpc/kernel/hw_breakpoint.c10
2 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h
index ea87f8ae7bdb..1c33ec17ca36 100644
--- a/arch/powerpc/include/asm/hw_breakpoint.h
+++ b/arch/powerpc/include/asm/hw_breakpoint.h
@@ -37,10 +37,6 @@ struct arch_hw_breakpoint {
#include <asm/reg.h>
#include <asm/system.h>
-static inline int hw_breakpoint_slots(int type)
-{
- return HBP_NUM;
-}
struct perf_event;
struct pmu;
struct perf_sample_data;
@@ -49,6 +45,7 @@ struct perf_sample_data;
/* Maximum permissible length of any HW Breakpoint */
#define HW_BREAKPOINT_LEN 0x8
+extern int hw_breakpoint_slots(int type);
extern int arch_bp_generic_fields(int type, int *gen_bp_type);
extern int arch_check_bp_in_kernelspace(struct perf_event *bp);
extern int arch_validate_hwbkpt_settings(struct perf_event *bp);
diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c
index 5a1d55d06a08..5ecd0401cdb1 100644
--- a/arch/powerpc/kernel/hw_breakpoint.c
+++ b/arch/powerpc/kernel/hw_breakpoint.c
@@ -44,6 +44,16 @@
static DEFINE_PER_CPU(struct perf_event *, bp_per_reg);
/*
+ * Returns total number of data or instruction breakpoints available.
+ */
+int hw_breakpoint_slots(int type)
+{
+ if (type == TYPE_DATA)
+ return HBP_NUM;
+ return 0; /* no instruction breakpoints available */
+}
+
+/*
* Install a perf counter breakpoint.
*
* We seek a free debug address register and use it for this