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Commit b5a07faa authored by Catalin Marinas's avatar Catalin Marinas Committed by Russell King
Browse files

ARM: 6106/1: Implement copy_to_user_page() for noMMU 



Commit 7959722b introduced calls to copy_(to|from)_user_page() from
access_process_vm() in mm/nommu.c. The copy_to_user_page() was not
implemented on noMMU ARM.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent b1a9ceb2

arch/arm/mm/nommu.c

+9 −0
Original line number Diff line number Diff line
@@ -65,6 +65,15 @@ void flush_dcache_page(struct page *page) 
}

EXPORT_SYMBOL(flush_dcache_page);



void copy_to_user_page(struct vm_area_struct *vma, struct page *page,

		       unsigned long uaddr, void *dst, const void *src,

		       unsigned long len)

{

	memcpy(dst, src, len);

	if (vma->vm_flags & VM_EXEC)

		__cpuc_coherent_user_range(uaddr, uaddr + len);

}



void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset,

				size_t size, unsigned int mtype)

{