1 /*
2 * Copyright (c) 2018-2019, 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_N1SDP_CHIP_COUNT,
23 PLAT_ARM_CLUSTER_COUNT,
24 PLAT_ARM_CLUSTER_COUNT,
25 N1SDP_MAX_CPUS_PER_CLUSTER,
26 N1SDP_MAX_CPUS_PER_CLUSTER,
27 N1SDP_MAX_CPUS_PER_CLUSTER,
28 N1SDP_MAX_CPUS_PER_CLUSTER
29 };
30
31 /* Topology configuration for n1sdp */
32 const n1sdp_topology_t n1sdp_topology = {
33 .power_tree = n1sdp_pd_tree_desc,
34 .plat_cluster_core_count = N1SDP_MAX_CPUS_PER_CLUSTER
35 };
36
37 /*******************************************************************************
38 * This function returns the topology tree information.
39 ******************************************************************************/
plat_get_power_domain_tree_desc(void)40 const unsigned char *plat_get_power_domain_tree_desc(void)
41 {
42 return n1sdp_topology.power_tree;
43 }
44
45 /*******************************************************************************
46 * This function returns the core count within the cluster corresponding to
47 * `mpidr`.
48 ******************************************************************************/
plat_arm_get_cluster_core_count(u_register_t mpidr)49 unsigned int plat_arm_get_cluster_core_count(u_register_t mpidr)
50 {
51 return n1sdp_topology.plat_cluster_core_count;
52 }
53
54 /*******************************************************************************
55 * The array mapping platform core position (implemented by plat_my_core_pos())
56 * to the SCMI power domain ID implemented by SCP.
57 ******************************************************************************/
58 const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[PLATFORM_CORE_COUNT] = {
59 0, 1, 2, 3, 4, 5, 6, 7};
60