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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2023 SiFive
*/
#include <linux/export.h>
#include <linux/preempt.h>
#include <asm/csr.h>
#include <asm/fpu.h>
#include <asm/processor.h>
#include <asm/switch_to.h>
void kernel_fpu_begin(void)
{
preempt_disable();
fstate_save(current, task_pt_regs(current));
csr_set(CSR_SSTATUS, SR_FS);
}
EXPORT_SYMBOL_GPL(kernel_fpu_begin);
void kernel_fpu_end(void)
{
csr_clear(CSR_SSTATUS, SR_FS);
fstate_restore(current, task_pt_regs(current));
preempt_enable();
}
EXPORT_SYMBOL_GPL(kernel_fpu_end);
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