Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_SH_HUGETLB_H
#define _ASM_SH_HUGETLB_H
 
#include <asm/cacheflush.h>
#include <asm/page.h>
 
/*
 * If the arch doesn't supply something else, assume that hugepage
 * size aligned regions are ok without further preparation.
 */
#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
static inline int prepare_hugepage_range(struct file *file,
<------><------><------>unsigned long addr, unsigned long len)
{
<------>if (len & ~HPAGE_MASK)
<------><------>return -EINVAL;
<------>if (addr & ~HPAGE_MASK)
<------><------>return -EINVAL;
<------>return 0;
}
 
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
<------><------><------><------><------> unsigned long addr, pte_t *ptep)
{
}
 
static inline void arch_clear_hugepage_flags(struct page *page)
{
<------>clear_bit(PG_dcache_clean, &page->flags);
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
 
#include <asm-generic/hugetlb.h>
 
#endif /* _ASM_SH_HUGETLB_H */