Messages in this thread Patch in this message | | | Date | Wed, 12 Nov 2008 18:15:59 -0500 | From | Mathieu Desnoyers <> | Subject | [patch 08/17] Powerpc : Trace clock |
| |
Powerpc implementation of trace clock with get_tb().
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: benh@kernel.crashing.org CC: paulus@samba.org CC: linux-arch@vger.kernel.org --- arch/powerpc/Kconfig | 1 arch/powerpc/include/asm/trace-clock.h | 47 +++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+)
Index: linux.trees.git/arch/powerpc/Kconfig =================================================================== --- linux.trees.git.orig/arch/powerpc/Kconfig 2008-11-12 18:00:10.000000000 -0500 +++ linux.trees.git/arch/powerpc/Kconfig 2008-11-12 18:01:20.000000000 -0500 @@ -114,6 +114,7 @@ config PPC select HAVE_IOREMAP_PROT select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_KPROBES + select HAVE_TRACE_CLOCK select HAVE_ARCH_KGDB select HAVE_KRETPROBES select HAVE_ARCH_TRACEHOOK Index: linux.trees.git/arch/powerpc/include/asm/trace-clock.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux.trees.git/arch/powerpc/include/asm/trace-clock.h 2008-11-12 18:01:20.000000000 -0500 @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2005,2008 Mathieu Desnoyers + * + * Trace clock PowerPC definitions. + * + * Use get_tb() directly to insure reading a 64-bits value on powerpc 32. + */ + +#ifndef _ASM_TRACE_CLOCK_H +#define _ASM_TRACE_CLOCK_H + +#include <linux/timex.h> +#include <linux/time.h> +#include <asm/processor.h> + +static inline u32 trace_clock_read32(void) +{ + return get_tbl(); +} + +static inline u64 trace_clock_read64(void) +{ + return get_tb(); +} + +static inline unsigned int trace_clock_frequency(void) +{ + return get_cycles_rate(); +} + +static inline u32 trace_clock_freq_scale(void) +{ + return 1; +} + +static inline void get_trace_clock(void) +{ +} + +static inline void put_trace_clock(void) +{ +} + +static inline void set_trace_clock_is_sync(int state) +{ +} +#endif /* _ASM_TRACE_CLOCK_H */ -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
| |