eaf7943cc5
Harmless since this function is not being called on I/O coherent systems such as IP27. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
|
|
* 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) 2006 Ralf Baechle <ralf@linux-mips.org>
|
|
*
|
|
*/
|
|
#ifndef __ASM_MACH_IP27_DMA_COHERENCE_H
|
|
#define __ASM_MACH_IP27_DMA_COHERENCE_H
|
|
|
|
#include <asm/pci/bridge.h>
|
|
|
|
#define pdev_to_baddr(pdev, addr) \
|
|
(BRIDGE_CONTROLLER(pdev->bus)->baddr + (addr))
|
|
#define dev_to_baddr(dev, addr) \
|
|
pdev_to_baddr(to_pci_dev(dev), (addr))
|
|
|
|
struct device;
|
|
|
|
static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
|
|
size_t size)
|
|
{
|
|
dma_addr_t pa = dev_to_baddr(dev, virt_to_phys(addr));
|
|
|
|
return pa;
|
|
}
|
|
|
|
static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
|
|
{
|
|
dma_addr_t pa = dev_to_baddr(dev, page_to_phys(page));
|
|
|
|
return pa;
|
|
}
|
|
|
|
static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
|
|
{
|
|
return dma_addr & ~(0xffUL << 56);
|
|
}
|
|
|
|
static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
|
|
{
|
|
}
|
|
|
|
static inline int plat_device_is_coherent(struct device *dev)
|
|
{
|
|
return 1; /* IP27 non-cohernet mode is unsupported */
|
|
}
|
|
|
|
#endif /* __ASM_MACH_IP27_DMA_COHERENCE_H */
|