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22 lines
393 B
C
22 lines
393 B
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2020 ARM Ltd.
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*/
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#include <linux/thread_info.h>
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#include <asm/cpufeature.h>
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#include <asm/mte.h>
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#include <asm/sysreg.h>
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void flush_mte_state(void)
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{
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if (!system_supports_mte())
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return;
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/* clear any pending asynchronous tag fault */
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dsb(ish);
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write_sysreg_s(0, SYS_TFSRE0_EL1);
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clear_thread_flag(TIF_MTE_ASYNC_FAULT);
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}
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