diff options
| -rw-r--r-- | arch/powerpc/include/asm/time.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/time.c | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index f8885586efaf..7991ab1d4cb8 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -29,6 +29,10 @@ extern u64 decrementer_max; extern void generic_calibrate_decr(void); +#ifdef CONFIG_PPC_SPLPAR +extern u64 get_boot_tb(void); +#endif + /* Some sane defaults: 125 MHz timebase, 1GHz processor */ extern unsigned long ppc_proc_freq; #define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 8224381c1dba..4bbeb8644d3d 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -137,7 +137,7 @@ EXPORT_SYMBOL_GPL(rtc_lock); static u64 tb_to_ns_scale __read_mostly; static unsigned tb_to_ns_shift __read_mostly; -static u64 boot_tb __read_mostly; +static u64 boot_tb __ro_after_init; extern struct timezone sys_tz; static long timezone_offset; @@ -639,6 +639,12 @@ notrace unsigned long long sched_clock(void) return mulhdu(get_tb() - boot_tb, tb_to_ns_scale) << tb_to_ns_shift; } +#ifdef CONFIG_PPC_SPLPAR +u64 get_boot_tb(void) +{ + return boot_tb; +} +#endif #ifdef CONFIG_PPC_PSERIES |