diff options
Diffstat (limited to 'plat/arm/board/fvp/fvp_topology.c')
| -rw-r--r-- | plat/arm/board/fvp/fvp_topology.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/plat/arm/board/fvp/fvp_topology.c b/plat/arm/board/fvp/fvp_topology.c index 848aaf8c7..cf1492b67 100644 --- a/plat/arm/board/fvp/fvp_topology.c +++ b/plat/arm/board/fvp/fvp_topology.c @@ -56,6 +56,26 @@ unsigned int plat_arm_get_cluster_core_count(u_register_t mpidr) ******************************************************************************/ int plat_core_pos_by_mpidr(u_register_t mpidr) { + unsigned int clus_id, cpu_id, thread_id; + + /* Validate affinity fields */ + if (arm_config.flags & ARM_CONFIG_FVP_SHIFTED_AFF) { + thread_id = MPIDR_AFFLVL0_VAL(mpidr); + cpu_id = MPIDR_AFFLVL1_VAL(mpidr); + clus_id = MPIDR_AFFLVL2_VAL(mpidr); + } else { + thread_id = 0; + cpu_id = MPIDR_AFFLVL0_VAL(mpidr); + clus_id = MPIDR_AFFLVL1_VAL(mpidr); + } + + if (clus_id >= FVP_CLUSTER_COUNT) + return -1; + if (cpu_id >= FVP_MAX_CPUS_PER_CLUSTER) + return -1; + if (thread_id >= FVP_MAX_PE_PER_CPU) + return -1; + if (fvp_pwrc_read_psysr(mpidr) == PSYSR_INVALID) return -1; |