| /* |
| * Copyright (c) 2019 Carlo Caione <ccaione@baylibre.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef _MACRO_PRIV_INC_ |
| #define _MACRO_PRIV_INC_ |
| |
| #include <zephyr/arch/arm64/tpidrro_el0.h> |
| |
| #ifdef _ASMLANGUAGE |
| |
| /* |
| * Get CPU id |
| */ |
| |
| .macro get_cpu_id xreg0 |
| mrs \xreg0, mpidr_el1 |
| /* FIMXME: aff3 not taken into consideration */ |
| ubfx \xreg0, \xreg0, #0, #24 |
| .endm |
| |
| /* |
| * Get CPU logic id by looking up cpu_node_list |
| * returns |
| * xreg0: MPID |
| * xreg1: logic id (0 ~ CONFIG_MP_MAX_NUM_CPUS - 1) |
| * clobbers: xreg0, xreg1, xreg2, xreg3 |
| */ |
| .macro get_cpu_logic_id xreg0, xreg1, xreg2, xreg3 |
| get_cpu_id \xreg0 |
| ldr \xreg3, =cpu_node_list |
| mov \xreg1, 0 |
| 1: ldr \xreg2, [\xreg3, \xreg1, lsl 3] |
| cmp \xreg2, \xreg0 |
| beq 2f |
| add \xreg1, \xreg1, 1 |
| cmp \xreg1, #CONFIG_MP_MAX_NUM_CPUS |
| bne 1b |
| b . |
| 2: |
| .endm |
| |
| /* |
| * Get CPU pointer |
| * Note: keep in sync with `arch_curr_cpu` in include/zephyr/arch/arm64/arch_inlines.h |
| */ |
| |
| .macro get_cpu xreg0 |
| mrs \xreg0, tpidrro_el0 |
| and \xreg0, \xreg0, #TPIDRROEL0_CURR_CPU |
| .endm |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #endif /* _MACRO_PRIV_INC_ */ |
