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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_IOREMAP_H
#define _LINUX_IOREMAP_H
#include <linux/kasan.h>
#include <asm/pgtable.h>
#include <asm/vmalloc.h>
#if defined(CONFIG_HAS_IOMEM) || defined(CONFIG_GENERIC_IOREMAP)
/*
* Ioremap often, but not always uses the generic vmalloc area. E.g on
* Power ARCH, it could have different ioremap space.
*/
#ifndef IOREMAP_START
#define IOREMAP_START VMALLOC_START
#define IOREMAP_END VMALLOC_END
#endif
static inline bool is_ioremap_addr(const void *x)
{
unsigned long addr = (unsigned long)kasan_reset_tag(x);
return addr >= IOREMAP_START && addr < IOREMAP_END;
}
#else
static inline bool is_ioremap_addr(const void *x)
{
return false;
}
#endif
#endif /* _LINUX_IOREMAP_H */
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