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>

1 files changed, 0 insertions, 40 deletions

diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index d95c9e78fe1d..bda94fd5176f 100644
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -54,14 +54,6 @@ extern int iommu_setup(char *opt);
 
 #if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
 
-/*
- * x86-64 always supports DAC, but sometimes it is useful to force
- * devices through the IOMMU to get automatic sg list merging.
- * Optional right now.
- */
-extern int iommu_sac_force;
-#define pci_dac_dma_supported(pci_dev, mask)	(!iommu_sac_force)
-
 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)	\
 	dma_addr_t ADDR_NAME;
 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)		\
@@ -78,8 +70,6 @@ extern int iommu_sac_force;
 #else
 /* No IOMMU */
 
-#define pci_dac_dma_supported(pci_dev, mask)    1
-
 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
 #define pci_unmap_addr(PTR, ADDR_NAME)		(0)
@@ -91,36 +81,6 @@ extern int iommu_sac_force;
 
 #include <asm-generic/pci-dma-compat.h>
 
-static inline dma64_addr_t
-pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
-{
-	return ((dma64_addr_t) page_to_phys(page) +
-		(dma64_addr_t) offset);
-}
-
-static inline struct page *
-pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
-{
-	return virt_to_page(__va(dma_addr)); 	
-}
-
-static inline unsigned long
-pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
-{
-	return (dma_addr & ~PAGE_MASK);
-}
-
-static inline void
-pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
-{
-}
-
-static inline void
-pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
-{
-	flush_write_buffers();
-}
-
 #ifdef CONFIG_PCI
 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 					enum pci_dma_burst_strategy *strat,