1 files changed, 0 insertions, 183 deletions
diff --git a/arch/frv/mm/dma-alloc.c b/arch/frv/mm/dma-alloc.c
deleted file mode 100644
index e701aa9e6a14..000000000000
--- a/arch/frv/mm/dma-alloc.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/* dma-alloc.c: consistent DMA memory allocation
- *
- * Derived from arch/ppc/mm/cachemap.c
- *
- *  PowerPC version derived from arch/arm/mm/consistent.c
- *    Copyright (C) 2001 Dan Malek (dmalek@jlc.net)
- *
- *  linux/arch/arm/mm/consistent.c
- *
- *  Copyright (C) 2000 Russell King
- *
- * Consistent memory allocators.  Used for DMA devices that want to
- * share uncached memory with the processor core.  The function return
- * is the virtual address and 'dma_handle' is the physical address.
- * Mostly stolen from the ARM port, with some changes for PowerPC.
- *						-- Dan
- * Modified for 36-bit support.  -Matt
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/hardirq.h>
-#include <linux/gfp.h>
-
-#include <asm/pgalloc.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <linux/uaccess.h>
-#include <asm/smp.h>
-
-static int map_page(unsigned long va, unsigned long pa, pgprot_t prot)
-{
-	pgd_t *pge;
-	pud_t *pue;
-	pmd_t *pme;
-	pte_t *pte;
-	int err = -ENOMEM;
-
-	/* Use upper 10 bits of VA to index the first level map */
-	pge = pgd_offset_k(va);
-	pue = pud_offset(pge, va);
-	pme = pmd_offset(pue, va);
-
-	/* Use middle 10 bits of VA to index the second-level map */
-	pte = pte_alloc_kernel(pme, va);
-	if (pte != 0) {
-		err = 0;
-		set_pte(pte, mk_pte_phys(pa & PAGE_MASK, prot));
-	}
-
-	return err;
-}
-
-/*
- * This function will allocate the requested contiguous pages and
- * map them into the kernel's vmalloc() space.  This is done so we
- * get unique mapping for these pages, outside of the kernel's 1:1
- * virtual:physical mapping.  This is necessary so we can cover large
- * portions of the kernel with single large page TLB entries, and
- * still get unique uncached pages for consistent DMA.
- */
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
-{
-	struct vm_struct *area;
-	unsigned long page, va, pa;
-	void *ret;
-	int order, err, i;
-
-	if (in_interrupt())
-		BUG();
-
-	/* only allocate page size areas */
-	size = PAGE_ALIGN(size);
-	order = get_order(size);
-
-	page = __get_free_pages(gfp, order);
-	if (!page) {
-		BUG();
-		return NULL;
-	}
-
-	/* allocate some common virtual space to map the new pages */
-	area = get_vm_area(size, VM_ALLOC);
-	if (area == 0) {
-		free_pages(page, order);
-		return NULL;
-	}
-	va = VMALLOC_VMADDR(area->addr);
-	ret = (void *) va;
-
-	/* this gives us the real physical address of the first page */
-	*dma_handle = pa = virt_to_bus((void *) page);
-
-	/* set refcount=1 on all pages in an order>0 allocation so that vfree() will actually free
-	 * all pages that were allocated.
-	 */
-	if (order > 0) {
-		struct page *rpage = virt_to_page(page);
-		split_page(rpage, order);
-	}
-
-	err = 0;
-	for (i = 0; i < size && err == 0; i += PAGE_SIZE)
-		err = map_page(va + i, pa + i, PAGE_KERNEL_NOCACHE);
-
-	if (err) {
-		vfree((void *) va);
-		return NULL;
-	}
-
-	/* we need to ensure that there are no cachelines in use, or worse dirty in this area
-	 * - can't do until after virtual address mappings are created
-	 */
-	frv_cache_invalidate(va, va + size);
-
-	return ret;
-}
-
-/*
- * free page(s) as defined by the above mapping.
- */
-void consistent_free(void *vaddr)
-{
-	if (in_interrupt())
-		BUG();
-	vfree(vaddr);
-}
-
-/*
- * make an area consistent.
- */
-void consistent_sync(void *vaddr, size_t size, int direction)
-{
-	unsigned long start = (unsigned long) vaddr;
-	unsigned long end   = start + size;
-
-	switch (direction) {
-	case PCI_DMA_NONE:
-		BUG();
-	case PCI_DMA_FROMDEVICE:	/* invalidate only */
-		frv_cache_invalidate(start, end);
-		break;
-	case PCI_DMA_TODEVICE:		/* writeback only */
-		frv_dcache_writeback(start, end);
-		break;
-	case PCI_DMA_BIDIRECTIONAL:	/* writeback and invalidate */
-		frv_dcache_writeback(start, end);
-		break;
-	}
-}
-
-/*
- * consistent_sync_page make a page are consistent. identical
- * to consistent_sync, but takes a struct page instead of a virtual address
- */
-
-void consistent_sync_page(struct page *page, unsigned long offset,
-			  size_t size, int direction)
-{
-	void *start;
-
-	start = page_address(page) + offset;
-	consistent_sync(start, size, direction);
-}