diff options
Diffstat (limited to 'plat/mediatek/mt8173/plat_topology.c')
-rw-r--r-- | plat/mediatek/mt8173/plat_topology.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/plat/mediatek/mt8173/plat_topology.c b/plat/mediatek/mt8173/plat_topology.c index 96598b65..caab8e46 100644 --- a/plat/mediatek/mt8173/plat_topology.c +++ b/plat/mediatek/mt8173/plat_topology.c @@ -31,6 +31,7 @@ #include <platform_def.h> #include <psci.h> +#if ENABLE_PLAT_COMPAT unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr) { /* Report 1 (absent) instance at levels higher that the cluster level */ @@ -54,3 +55,55 @@ int mt_setup_topology(void) /* [TODO] Make topology configurable via SCC */ return 0; } +#else + +const unsigned char mtk_power_domain_tree_desc[] = { + /* No of root nodes */ + PLATFORM_SYSTEM_COUNT, + /* No of children for the root node */ + PLATFORM_CLUSTER_COUNT, + /* No of children for the first cluster node */ + PLATFORM_CLUSTER0_CORE_COUNT, + /* No of children for the second cluster node */ + PLATFORM_CLUSTER1_CORE_COUNT +}; + +/******************************************************************************* + * This function returns the MT8173 default topology tree information. + ******************************************************************************/ +const unsigned char *plat_get_power_domain_tree_desc(void) +{ + return mtk_power_domain_tree_desc; +} + +/******************************************************************************* + * This function implements a part of the critical interface between the psci + * generic layer and the platform that allows the former to query the platform + * to convert an MPIDR to a unique linear index. An error code (-1) is returned + * in case the MPIDR is invalid. + ******************************************************************************/ +int plat_core_pos_by_mpidr(u_register_t mpidr) +{ + unsigned int cluster_id, cpu_id; + + mpidr &= MPIDR_AFFINITY_MASK; + + if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)) + return -1; + + cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK; + cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK; + + if (cluster_id >= PLATFORM_CLUSTER_COUNT) + return -1; + + /* + * Validate cpu_id by checking whether it represents a CPU in + * one of the two clusters present on the platform. + */ + if (cpu_id >= PLATFORM_MAX_CPUS_PER_CLUSTER) + return -1; + + return (cpu_id + (cluster_id * 4)); +} +#endif |