diff options
Diffstat (limited to 'driver/gator_iks.c')
| -rw-r--r-- | driver/gator_iks.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/driver/gator_iks.c b/driver/gator_iks.c index ed2c6dd..24233d7 100644 --- a/driver/gator_iks.c +++ b/driver/gator_iks.c @@ -16,17 +16,34 @@ static bool map_cpuids; static int mpidr_cpuids[NR_CPUS]; +static const struct gator_cpu * mpidr_cpus[NR_CPUS]; static int __lcpu_to_pcpu[NR_CPUS]; +static const struct gator_cpu *gator_find_cpu_by_dt_name(const char *const name) +{ + int i; + + for (i = 0; gator_cpus[i].cpuid != 0; ++i) { + const struct gator_cpu *const gator_cpu = &gator_cpus[i]; + if (gator_cpu->dt_name != NULL && strcmp(gator_cpu->dt_name, name) == 0) { + return gator_cpu; + } + } + + return NULL; +} + static void calc_first_cluster_size(void) { int len; const u32 *val; + const char *compatible; struct device_node *cn = NULL; int mpidr_cpuids_count = 0; // Zero is a valid cpuid, so initialize the array to 0xff's memset(&mpidr_cpuids, 0xff, sizeof(mpidr_cpuids)); + memset(&mpidr_cpus, 0, sizeof(mpidr_cpus)); while ((cn = of_find_node_by_type(cn, "cpu"))) { BUG_ON(mpidr_cpuids_count >= NR_CPUS); @@ -36,8 +53,14 @@ static void calc_first_cluster_size(void) pr_err("%s missing reg property\n", cn->full_name); continue; } + compatible = of_get_property(cn, "compatible", NULL); + if (compatible == NULL) { + pr_err("%s missing compatible property\n", cn->full_name); + continue; + } mpidr_cpuids[mpidr_cpuids_count] = be32_to_cpup(val); + mpidr_cpus[mpidr_cpuids_count] = gator_find_cpu_by_dt_name(compatible); ++mpidr_cpuids_count; } @@ -120,6 +143,17 @@ GATOR_DEFINE_PROBE(cpu_migrate_current, TP_PROTO(u64 timestamp, u32 cpu_hwid)) gator_update_cpu_mapping(cpu_hwid); } +static void gator_send_iks_core_names(void) +{ + int cpu; + // Send the cpu names + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) { + if (mpidr_cpus[cpu] != NULL) { + gator_send_core_name(cpu, mpidr_cpus[cpu]->cpuid, mpidr_cpus[cpu]); + } + } +} + static int gator_migrate_start(void) { int retval = 0; @@ -154,6 +188,7 @@ static void gator_migrate_stop(void) #else #define calc_first_cluster_size() +#define gator_send_iks_core_names() #define gator_migrate_start() 0 #define gator_migrate_stop() |