| developer | 1033ea1 | 2019-04-10 21:09:26 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019, 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 <platform_def.h> |
| 10 | |
| 11 | .globl plat_is_my_cpu_primary |
| 12 | .globl plat_my_core_pos |
| 13 | |
| 14 | func plat_is_my_cpu_primary |
| 15 | mrs x0, mpidr_el1 |
| 16 | and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK) |
| 17 | cmp x0, #PLAT_PRIMARY_CPU |
| 18 | cset x0, eq |
| 19 | ret |
| 20 | endfunc plat_is_my_cpu_primary |
| 21 | |
| 22 | /* ----------------------------------------------------- |
| 23 | * unsigned int plat_my_core_pos(void); |
| 24 | * |
| 25 | * result: CorePos = CoreId + (ClusterId << 2) |
| 26 | * ----------------------------------------------------- |
| 27 | */ |
| 28 | func plat_my_core_pos |
| 29 | mrs x0, mpidr_el1 |
| 30 | and x1, x0, #MPIDR_CPU_MASK |
| 31 | and x0, x0, #MPIDR_CLUSTER_MASK |
| 32 | add x0, x1, x0, LSR #6 |
| 33 | ret |
| 34 | endfunc plat_my_core_pos |