diff options
| author | Simon Glass <sjg@chromium.org> | 2013-06-11 18:14:50 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-26 14:18:56 (GMT) |
| commit | ca35a0cdf26ff25b4128822ad2554ebd03eb2d42 (patch) | |
| tree | 2c2dfa844af693a7c74f23234cfae7c70859cbcb /arch | |
| parent | bce1b92aa11fc7dadae19452e9ff84c33a4b0c9a (diff) | |
| download | u-boot-ca35a0cdf26ff25b4128822ad2554ebd03eb2d42.tar.xz | |
exynos: Avoid function instrumentation for microsecond timer
For tracing to work it has to be able to access the microsecond timer
without causing a recursive call to the function entry/exit handlers.
Add attributes to the relevant functions to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/s5p-common/timer.c | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-exynos/cpu.h | 10 |
2 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/s5p-common/timer.c b/arch/arm/cpu/armv7/s5p-common/timer.c index 4adfaae..637593c 100644 --- a/arch/arm/cpu/armv7/s5p-common/timer.c +++ b/arch/arm/cpu/armv7/s5p-common/timer.c @@ -95,7 +95,7 @@ unsigned long get_timer(unsigned long base) return time_ms - base; } -unsigned long timer_get_us(void) +unsigned long __attribute__((no_instrument_function)) timer_get_us(void) { static unsigned long base_time_us; diff --git a/arch/arm/include/asm/arch-exynos/cpu.h b/arch/arm/include/asm/arch-exynos/cpu.h index 36b98c8..1ff7642 100644 --- a/arch/arm/include/asm/arch-exynos/cpu.h +++ b/arch/arm/include/asm/arch-exynos/cpu.h @@ -178,7 +178,7 @@ static inline char *s5p_get_cpu_name(void) } #define IS_SAMSUNG_TYPE(type, id) \ -static inline int cpu_is_##type(void) \ +static inline int __attribute__((no_instrument_function)) cpu_is_##type(void) \ { \ return (s5p_cpu_id >> 12) == id; \ } @@ -187,7 +187,8 @@ IS_SAMSUNG_TYPE(exynos4, 0x4) IS_SAMSUNG_TYPE(exynos5, 0x5) #define IS_EXYNOS_TYPE(type, id) \ -static inline int proid_is_##type(void) \ +static inline int __attribute__((no_instrument_function)) \ + proid_is_##type(void) \ { \ return s5p_cpu_id == id; \ } @@ -197,9 +198,10 @@ IS_EXYNOS_TYPE(exynos4412, 0x4412) IS_EXYNOS_TYPE(exynos5250, 0x5250) #define SAMSUNG_BASE(device, base) \ -static inline unsigned int samsung_get_base_##device(void) \ +static inline unsigned int __attribute__((no_instrument_function)) \ + samsung_get_base_##device(void) \ { \ - if (cpu_is_exynos4()) { \ + if (cpu_is_exynos4()) { \ if (proid_is_exynos4412()) \ return EXYNOS4X12_##base; \ return EXYNOS4_##base; \ |