From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- plat/renesas/common/plat_topology.c | 47 +++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 plat/renesas/common/plat_topology.c (limited to 'plat/renesas/common/plat_topology.c') diff --git a/plat/renesas/common/plat_topology.c b/plat/renesas/common/plat_topology.c new file mode 100644 index 0000000..0d5880d --- /dev/null +++ b/plat/renesas/common/plat_topology.c @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2018, Renesas Electronics Corporation. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include + +#include +#include + +static const unsigned char rcar_power_domain_tree_desc[] = { + 1, + PLATFORM_CLUSTER_COUNT, + PLATFORM_CLUSTER0_CORE_COUNT, + PLATFORM_CLUSTER1_CORE_COUNT +}; + +const unsigned char *plat_get_power_domain_tree_desc(void) +{ + return rcar_power_domain_tree_desc; +} + +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; + + if (cluster_id == 0 && cpu_id >= PLATFORM_CLUSTER0_CORE_COUNT) + return -1; + + if (cluster_id == 1 && cpu_id >= PLATFORM_CLUSTER1_CORE_COUNT) + return -1; + + return (cpu_id + cluster_id * PLATFORM_CLUSTER0_CORE_COUNT); +} + -- cgit v1.2.3