diff options
| author | Arve Hjønnevåg <arve@android.com> | 2012-04-03 18:01:03 -0700 |
|---|---|---|
| committer | Frank Li <Frank.Li@freescale.com> | 2012-09-26 13:26:21 +0800 |
| commit | 1b7aab024e897875100c331786f55902c6de565d (patch) | |
| tree | 06e031fb2d6265128c3af93055d198b923adf711 /arch/arm/include | |
| parent | 6c0b910c0e3be3015d60a149fe98e3f89c8604f5 (diff) | |
ARM: etm: Add sysfs entry to enable return stack if supported
Change-Id: Icb73d60324ad0ddfc3e8a450a28bb3d90c702788
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/hardware/coresight.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hardware/coresight.h b/arch/arm/include/asm/hardware/coresight.h index 727ba0f0d44b..dcf74d715f2b 100644 --- a/arch/arm/include/asm/hardware/coresight.h +++ b/arch/arm/include/asm/hardware/coresight.h @@ -20,12 +20,14 @@ #define TRACER_TRACE_DATA_BIT 3 #define TRACER_TIMESTAMP_BIT 4 #define TRACER_BRANCHOUTPUT_BIT 5 +#define TRACER_RETURN_STACK_BIT 6 #define TRACER_ACCESSED BIT(TRACER_ACCESSED_BIT) #define TRACER_RUNNING BIT(TRACER_RUNNING_BIT) #define TRACER_CYCLE_ACC BIT(TRACER_CYCLE_ACC_BIT) #define TRACER_TRACE_DATA BIT(TRACER_TRACE_DATA_BIT) #define TRACER_TIMESTAMP BIT(TRACER_TIMESTAMP_BIT) #define TRACER_BRANCHOUTPUT BIT(TRACER_BRANCHOUTPUT_BIT) +#define TRACER_RETURN_STACK BIT(TRACER_RETURN_STACK_BIT) #define TRACER_TIMEOUT 10000 @@ -62,6 +64,7 @@ #define ETMCTRL_BRANCH_OUTPUT (1 << 8) #define ETMCTRL_CYCLEACCURATE (1 << 12) #define ETMCTRL_TIMESTAMP_EN (1 << 28) +#define ETMCTRL_RETURN_STACK_EN (1 << 29) /* ETM configuration code register */ #define ETMR_CONFCODE (0x04) @@ -136,6 +139,7 @@ #define ETMIDR_VERSION_PFT_1_0 0x30 #define ETMR_CCE 0x1e8 +#define ETMCCER_RETURN_STACK_IMPLEMENTED BIT(23) #define ETMCCER_TIMESTAMPING_IMPLEMENTED BIT(22) #define ETMR_TRACEIDR 0x200 |