diff options
Diffstat (limited to 'arch/arm/common/bL_switcher.c')
| -rw-r--r-- | arch/arm/common/bL_switcher.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c index f01c0ee0c87e..6eaddc47c43d 100644 --- a/arch/arm/common/bL_switcher.c +++ b/arch/arm/common/bL_switcher.c @@ -58,16 +58,6 @@ static int read_mpidr(void) } /* - * Get a global nanosecond time stamp for tracing. - */ -static s64 get_ns(void) -{ - struct timespec ts; - getnstimeofday(&ts); - return timespec_to_ns(&ts); -} - -/* * bL switcher core code. */ @@ -224,7 +214,7 @@ static int bL_switch_to(unsigned int new_cluster_id) */ local_irq_disable(); local_fiq_disable(); - trace_cpu_migrate_begin(get_ns(), ob_mpidr); + trace_cpu_migrate_begin(ktime_get_real_ns(), ob_mpidr); /* redirect GIC's SGIs to our counterpart */ gic_migrate_target(bL_gic_id[ib_cpu][ib_cluster]); @@ -267,7 +257,7 @@ static int bL_switch_to(unsigned int new_cluster_id) tdev->evtdev->next_event, 1); } - trace_cpu_migrate_finish(get_ns(), ib_mpidr); + trace_cpu_migrate_finish(ktime_get_real_ns(), ib_mpidr); local_fiq_enable(); local_irq_enable(); @@ -433,8 +423,12 @@ static void bL_switcher_restore_cpus(void) { int i; - for_each_cpu(i, &bL_switcher_removed_logical_cpus) - cpu_up(i); + for_each_cpu(i, &bL_switcher_removed_logical_cpus) { + struct device *cpu_dev = get_cpu_device(i); + int ret = device_online(cpu_dev); + if (ret) + dev_err(cpu_dev, "switcher: unable to restore CPU\n"); + } } static int bL_switcher_halve_cpus(void) @@ -521,7 +515,7 @@ static int bL_switcher_halve_cpus(void) continue; } - ret = cpu_down(i); + ret = device_offline(get_cpu_device(i)); if (ret) { bL_switcher_restore_cpus(); return ret; @@ -554,7 +548,7 @@ int bL_switcher_get_logical_index(u32 mpidr) static void bL_switcher_trace_trigger_cpu(void *__always_unused info) { - trace_cpu_migrate_current(get_ns(), read_mpidr()); + trace_cpu_migrate_current(ktime_get_real_ns(), read_mpidr()); } int bL_switcher_trace_trigger(void) |