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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright IBM Corp. 2023
*/
#include <linux/export.h>
#include <asm/facility.h>
unsigned int stfle_size(void)
{
static unsigned int size;
unsigned int r;
u64 dummy;
r = READ_ONCE(size);
if (!r) {
r = __stfle_asm(&dummy, 1) + 1;
WRITE_ONCE(size, r);
}
return r;
}
EXPORT_SYMBOL(stfle_size);
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