u-boot/arch/x86/cpu/apollolake/cpu_common.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2019 Google LLC
*/
#include <common.h>
#include <asm/cpu_common.h>
#include <asm/msr.h>
void cpu_flush_l1d_to_l2(void)
{
struct msr_t msr;
msr = msr_read(MSR_POWER_MISC);
msr.lo |= FLUSH_DL1_L2;
msr_write(MSR_POWER_MISC, msr);
}