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-rw-r--r--arch/cris/mm/ioremap.c90
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/cris/mm/ioremap.c b/arch/cris/mm/ioremap.c
deleted file mode 100644
index 350bd2a..0000000
--- a/arch/cris/mm/ioremap.c
+++ /dev/null
@@ -1,90 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * arch/cris/mm/ioremap.c
- *
- * Re-map IO memory to kernel address space so that we can access it.
- * Needed for memory-mapped I/O devices mapped outside our normal DRAM
- * window (that is, all memory-mapped I/O devices).
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- * CRIS-port by Axis Communications AB
- */
-
-#include <linux/vmalloc.h>
-#include <linux/io.h>
-#include <asm/pgalloc.h>
-#include <arch/memmap.h>
-
-/*
- * Generic mapping function (not visible outside):
- */
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void __iomem * __ioremap_prot(unsigned long phys_addr, unsigned long size, pgprot_t prot)
-{
- void __iomem * addr;
- struct vm_struct * area;
- unsigned long offset, last_addr;
-
- /* Don't allow wraparound or zero size */
- last_addr = phys_addr + size - 1;
- if (!size || last_addr < phys_addr)
- return NULL;
-
- /*
- * Mappings have to be page-aligned
- */
- offset = phys_addr & ~PAGE_MASK;
- phys_addr &= PAGE_MASK;
- size = PAGE_ALIGN(last_addr+1) - phys_addr;
-
- /*
- * Ok, go for it..
- */
- area = get_vm_area(size, VM_IOREMAP);
- if (!area)
- return NULL;
- addr = (void __iomem *)area->addr;
- if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
- phys_addr, prot)) {
- vfree((void __force *)addr);
- return NULL;
- }
- return (void __iomem *) (offset + (char __iomem *)addr);
-}
-
-void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
-{
- return __ioremap_prot(phys_addr, size,
- __pgprot(_PAGE_PRESENT | __READABLE |
- __WRITEABLE | _PAGE_GLOBAL |
- _PAGE_KERNEL | flags));
-}
-
-/**
- * ioremap_nocache - map bus memory into CPU space
- * @offset: bus address of the memory
- * @size: size of the resource to map
- *
- * Must be freed with iounmap.
- */
-
-void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
-{
- return __ioremap(phys_addr | MEM_NON_CACHEABLE, size, 0);
-}
-EXPORT_SYMBOL(ioremap_nocache);
-
-void iounmap(volatile void __iomem *addr)
-{
- if (addr > high_memory)
- return vfree((void *) (PAGE_MASK & (unsigned long) addr));
-}
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