1 /* 2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <plat/arm/common/plat_arm.h> 8 9 /* Topology */ 10 typedef struct n1sdp_topology { 11 const unsigned char *power_tree; 12 unsigned int plat_cluster_core_count; 13 } n1sdp_topology_t; 14 15 /* 16 * The power domain tree descriptor. The cluster power domains are 17 * arranged so that when the PSCI generic code creates the power domain tree, 18 * the indices of the CPU power domain nodes it allocates match the linear 19 * indices returned by plat_core_pos_by_mpidr(). 20 */ 21 const unsigned char n1sdp_pd_tree_desc[] = { 22 PLAT_ARM_CLUSTER_COUNT, 23 N1SDP_MAX_CPUS_PER_CLUSTER, 24 N1SDP_MAX_CPUS_PER_CLUSTER 25 }; 26 27 /* Topology configuration for n1sdp */ 28 const n1sdp_topology_t n1sdp_topology = { 29 .power_tree = n1sdp_pd_tree_desc, 30 .plat_cluster_core_count = N1SDP_MAX_CPUS_PER_CLUSTER 31 }; 32 33 /******************************************************************************* 34 * This function returns the topology tree information. 35 ******************************************************************************/ 36 const unsigned char *plat_get_power_domain_tree_desc(void) 37 { 38 return n1sdp_topology.power_tree; 39 } 40 41 /******************************************************************************* 42 * This function returns the core count within the cluster corresponding to 43 * `mpidr`. 44 ******************************************************************************/ 45 unsigned int plat_arm_get_cluster_core_count(u_register_t mpidr) 46 { 47 return n1sdp_topology.plat_cluster_core_count; 48 } 49 50 /******************************************************************************* 51 * The array mapping platform core position (implemented by plat_my_core_pos()) 52 * to the SCMI power domain ID implemented by SCP. 53 ******************************************************************************/ 54 const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[PLATFORM_CORE_COUNT] = { 55 0, 1, 2, 3}; 56