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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
commit | 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch) | |
tree | bcf648efac40ca6139842707f0eba5a4496a6dd2 /plat/xilinx/versal_net/plat_topology.c | |
parent | Initial commit. (diff) | |
download | arm-trusted-firmware-upstream.tar.xz arm-trusted-firmware-upstream.zip |
Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plat/xilinx/versal_net/plat_topology.c')
-rw-r--r-- | plat/xilinx/versal_net/plat_topology.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/plat/xilinx/versal_net/plat_topology.c b/plat/xilinx/versal_net/plat_topology.c new file mode 100644 index 0000000..7f985b0 --- /dev/null +++ b/plat/xilinx/versal_net/plat_topology.c @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. + * Copyright (C) 2022, Advanced Micro Devices, Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <common/debug.h> +#include <plat/common/platform.h> + +#include <plat_private.h> +#include <platform_def.h> + +static const uint8_t plat_power_domain_tree_desc[] = { + /* Number of root nodes */ + 1, + /* Number of clusters */ + PLATFORM_CLUSTER_COUNT, + /* Number of children for the first cluster node */ + PLATFORM_CORE_COUNT_PER_CLUSTER, + /* Number of children for the second cluster node */ + PLATFORM_CORE_COUNT_PER_CLUSTER, + /* Number of children for the third cluster node */ + PLATFORM_CORE_COUNT_PER_CLUSTER, + /* Number of children for the fourth cluster node */ + PLATFORM_CORE_COUNT_PER_CLUSTER, +}; + +const uint8_t *plat_get_power_domain_tree_desc(void) +{ + return plat_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. + ******************************************************************************/ +int32_t plat_core_pos_by_mpidr(u_register_t mpidr) +{ + uint32_t cluster_id, cpu_id; + + mpidr &= MPIDR_AFFINITY_MASK; + + cluster_id = MPIDR_AFFLVL2_VAL(mpidr); + cpu_id = MPIDR_AFFLVL1_VAL(mpidr); + + if (cluster_id >= PLATFORM_CLUSTER_COUNT) { + return -3; + } + + /* + * Validate cpu_id by checking whether it represents a CPU in + * one of the two clusters present on the platform. + */ + if (cpu_id >= PLATFORM_CORE_COUNT_PER_CLUSTER) { + return -1; + } + + return (cpu_id + (cluster_id * PLATFORM_CORE_COUNT_PER_CLUSTER)); +} |