diff options
Diffstat (limited to 'roms/u-boot/arch/arm/cpu/armv8/tlb.S')
| -rw-r--r-- | roms/u-boot/arch/arm/cpu/armv8/tlb.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/cpu/armv8/tlb.S b/roms/u-boot/arch/arm/cpu/armv8/tlb.S new file mode 100644 index 000000000..46a0d7d8f --- /dev/null +++ b/roms/u-boot/arch/arm/cpu/armv8/tlb.S @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2013 + * David Feng <fenghua@phytium.com.cn> + */ + +#include <asm-offsets.h> +#include <config.h> +#include <linux/linkage.h> +#include <asm/macro.h> + +/* + * void __asm_invalidate_tlb_all(void) + * + * invalidate all tlb entries. +*/ +.pushsection .text.__asm_invalidate_tlb_all, "ax" +ENTRY(__asm_invalidate_tlb_all) + switch_el x9, 3f, 2f, 1f +3: tlbi alle3 + dsb sy + isb + b 0f +2: tlbi alle2 + dsb sy + isb + b 0f +1: tlbi vmalle1 + dsb sy + isb +0: + ret +ENDPROC(__asm_invalidate_tlb_all) +.popsection |