1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <arch.h> 8 #include <asm_macros.S> 9 #include <assert_macros.S> 10 #include <platform_def.h> 11 12 .globl plat_my_core_pos 13 .globl plat_is_my_cpu_primary 14 .globl plat_get_my_entrypoint 15 .weak platform_get_core_pos 16 17 /* ----------------------------------------------------- 18 * Compatibility wrappers for new platform APIs. 19 * ----------------------------------------------------- 20 */ 21 func plat_my_core_pos 22 mrs x0, mpidr_el1 23 b platform_get_core_pos 24 endfunc plat_my_core_pos 25 26 func plat_is_my_cpu_primary 27 mrs x0, mpidr_el1 28 b platform_is_primary_cpu 29 endfunc plat_is_my_cpu_primary 30 31 func plat_get_my_entrypoint 32 mrs x0, mpidr_el1 33 b platform_get_entrypoint 34 endfunc plat_get_my_entrypoint 35 36 /* ----------------------------------------------------- 37 * int platform_get_core_pos(int mpidr); 38 * With this function: CorePos = (ClusterId * 4) + 39 * CoreId 40 * ----------------------------------------------------- 41 */ 42 func platform_get_core_pos 43 and x1, x0, #MPIDR_CPU_MASK 44 and x0, x0, #MPIDR_CLUSTER_MASK 45 add x0, x1, x0, LSR #6 46 ret 47 endfunc platform_get_core_pos 48
