diff options
| -rw-r--r-- | drivers/gator/gator_iks.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/gator/gator_iks.c b/drivers/gator/gator_iks.c index 6f45c5482058..fa86a37e5d5b 100644 --- a/drivers/gator/gator_iks.c +++ b/drivers/gator/gator_iks.c @@ -14,6 +14,7 @@ #include <asm/smp_plat.h> #include <trace/events/power_cpu_migrate.h> +static bool map_cpuids; static int mpidr_cpuids[NR_CPUS]; static int __lcpu_to_pcpu[NR_CPUS]; @@ -40,7 +41,7 @@ static void calc_first_cluster_size(void) ++mpidr_cpuids_count; } - BUG_ON(mpidr_cpuids_count != nr_cpu_ids); + map_cpuids = (mpidr_cpuids_count == nr_cpu_ids); } static int linearize_mpidr(int mpidr) @@ -58,6 +59,10 @@ static int linearize_mpidr(int mpidr) int lcpu_to_pcpu(const int lcpu) { int pcpu; + + if (!map_cpuids) + return lcpu; + BUG_ON(lcpu >= nr_cpu_ids || lcpu < 0); pcpu = __lcpu_to_pcpu[lcpu]; BUG_ON(pcpu >= nr_cpu_ids || pcpu < 0); @@ -67,6 +72,10 @@ int lcpu_to_pcpu(const int lcpu) int pcpu_to_lcpu(const int pcpu) { int lcpu; + + if (!map_cpuids) + return pcpu; + BUG_ON(pcpu >= nr_cpu_ids || pcpu < 0); for (lcpu = 0; lcpu < nr_cpu_ids; ++lcpu) { if (__lcpu_to_pcpu[lcpu] == pcpu) { @@ -114,6 +123,10 @@ GATOR_DEFINE_PROBE(cpu_migrate_current, TP_PROTO(u64 timestamp, u32 cpu_hwid)) static int gator_migrate_start(void) { int retval = 0; + + if (!map_cpuids) + return retval; + if (retval == 0) retval = GATOR_REGISTER_TRACE(cpu_migrate_begin); if (retval == 0) @@ -130,6 +143,9 @@ static int gator_migrate_start(void) static void gator_migrate_stop(void) { + if (!map_cpuids) + return; + GATOR_UNREGISTER_TRACE(cpu_migrate_current); GATOR_UNREGISTER_TRACE(cpu_migrate_finish); GATOR_UNREGISTER_TRACE(cpu_migrate_begin); |