Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
new file mode 100644
index 000000000..6bbe52025
--- /dev/null
+++ b/arch/m68k/include/asm/page_no.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _M68K_PAGE_NO_H
+#define _M68K_PAGE_NO_H
+
+#ifndef __ASSEMBLY__
+ 
+extern unsigned long memory_start;
+extern unsigned long memory_end;
+
+#define clear_page(page)	memset((page), 0, PAGE_SIZE)
+#define copy_page(to,from)	memcpy((to), (from), PAGE_SIZE)
+
+#define clear_user_page(page, vaddr, pg)	clear_page(page)
+#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
+
+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
+	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
+#define __pa(vaddr)		((unsigned long)(vaddr))
+#define __va(paddr)		((void *)((unsigned long)(paddr)))
+
+#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)
+
+#define virt_to_page(addr)	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
+#define page_to_virt(page)	__va(((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET))
+
+#define pfn_to_page(pfn)	virt_to_page(pfn_to_virt(pfn))
+#define page_to_pfn(page)	virt_to_pfn(page_to_virt(page))
+#define pfn_valid(pfn)	        ((pfn) < max_mapnr)
+
+#define	virt_addr_valid(kaddr)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
+				((void *)(kaddr) < (void *)memory_end))
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _M68K_PAGE_NO_H */