PCI: remove pci_dac_dma_... APIs

Based on replies to a respective query, remove the pci_dac_dma_...() APIs
(except for pci_dac_dma_supported() on Alpha, where this function is used
in non-DAC PCI DMA code).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Jesse Barnes <jesse.barnes@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Acked-by: David Miller <davem@davemloft.net>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 1 insertions, 80 deletions

diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index f26ede001a0..c58bd3d036f 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the PCI specific kernel interface routines under Linux.
 #
 
-obj-y				+= pci.o pci-dac.o
+obj-y				+= pci.o
 
 #
 # PCI bus host bridge specific code
diff --git a/arch/mips/pci/pci-dac.c b/arch/mips/pci/pci-dac.c
deleted file mode 100644
index 0f0ea1b7d4d..00000000000
--- a/arch/mips/pci/pci-dac.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2000  Ani Joshi <ajoshi@unixbox.com>
- * Copyright (C) 2000, 2001, 06  Ralf Baechle <ralf@linux-mips.org>
- * swiped from i386, and cloned for MIPS by Geert, polished by Ralf.
- */
-
-#include <linux/types.h>
-#include <linux/dma-mapping.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/string.h>
-
-#include <asm/cache.h>
-#include <asm/io.h>
-
-#include <dma-coherence.h>
-
-#include <linux/pci.h>
-
-dma64_addr_t pci_dac_page_to_dma(struct pci_dev *pdev,
-	struct page *page, unsigned long offset, int direction)
-{
-	struct device *dev = &pdev->dev;
-
-	BUG_ON(direction == DMA_NONE);
-
-	if (!plat_device_is_coherent(dev)) {
-		unsigned long addr;
-
-		addr = (unsigned long) page_address(page) + offset;
-		dma_cache_wback_inv(addr, PAGE_SIZE);
-	}
-
-	return plat_map_dma_mem_page(dev, page) + offset;
-}
-
-EXPORT_SYMBOL(pci_dac_page_to_dma);
-
-struct page *pci_dac_dma_to_page(struct pci_dev *pdev,
-	dma64_addr_t dma_addr)
-{
-	return pfn_to_page(plat_dma_addr_to_phys(dma_addr) >> PAGE_SHIFT);
-}
-
-EXPORT_SYMBOL(pci_dac_dma_to_page);
-
-unsigned long pci_dac_dma_to_offset(struct pci_dev *pdev,
-	dma64_addr_t dma_addr)
-{
-	return dma_addr & ~PAGE_MASK;
-}
-
-EXPORT_SYMBOL(pci_dac_dma_to_offset);
-
-void pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev,
-	dma64_addr_t dma_addr, size_t len, int direction)
-{
-	BUG_ON(direction == PCI_DMA_NONE);
-
-	if (!plat_device_is_coherent(&pdev->dev))
-		dma_cache_wback_inv(dma_addr + PAGE_OFFSET, len);
-}
-
-EXPORT_SYMBOL(pci_dac_dma_sync_single_for_cpu);
-
-void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev,
-	dma64_addr_t dma_addr, size_t len, int direction)
-{
-	BUG_ON(direction == PCI_DMA_NONE);
-
-	if (!plat_device_is_coherent(&pdev->dev))
-		dma_cache_wback_inv(dma_addr + PAGE_OFFSET, len);
-}
-
-EXPORT_SYMBOL(pci_dac_dma_sync_single_for_device);