/* * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include .globl init_cpu_data_ptr .globl _cpu_data_by_index /* ----------------------------------------------------------------- * void init_cpu_data_ptr(void) * * Initialise the TPIDR_EL3 register to refer to the cpu_data_t * for the calling CPU. This must be called before cm_get_cpu_data() * * This can be called without a valid stack. It assumes that * plat_my_core_pos() does not clobber register x10. * clobbers: x0, x1, x10 * ----------------------------------------------------------------- */ func init_cpu_data_ptr mov x10, x30 bl plat_my_core_pos bl _cpu_data_by_index msr tpidr_el3, x0 ret x10 endfunc init_cpu_data_ptr /* ----------------------------------------------------------------- * cpu_data_t *_cpu_data_by_index(uint32_t cpu_index) * * Return the cpu_data structure for the CPU with given linear index * * This can be called without a valid stack. * clobbers: x0, x1 * ----------------------------------------------------------------- */ func _cpu_data_by_index mov_imm x1, CPU_DATA_SIZE mul x0, x0, x1 adrp x1, percpu_data add x1, x1, :lo12:percpu_data add x0, x0, x1 ret endfunc _cpu_data_by_index