powerpc: Improve resolution of VDSO clock_gettime

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / time.c

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c73fc33aa817a93f49b682fcb999f1f5c5fe61e0..8389c5be149cea83a4267b0923f93162259fc753 100644 (file)
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -322,7 +322,7 @@ void snapshot_timebases(void)
 {
        if (!cpu_has_feature(CPU_FTR_PURR))
                return;
-       on_each_cpu(snapshot_tb_and_purr, NULL, 0, 1);
+       on_each_cpu(snapshot_tb_and_purr, NULL, 1);
 }
 
 /*
@@ -456,6 +456,7 @@ static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
        vdso_data->tb_to_xs = new_tb_to_xs;
        vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
        vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
+       vdso_data->stamp_xtime = xtime;
        smp_wmb();
        ++(vdso_data->tb_update_count);
 }
@@ -742,10 +743,6 @@ void __init generic_calibrate_decr(void)
        }
 
 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
-       /* Set the time base to zero */
-       mtspr(SPRN_TBWL, 0);
-       mtspr(SPRN_TBWU, 0);
-
        /* Clear any pending timer interrupts */
        mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);