You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.4 KiB
51 lines
1.4 KiB
/*
|
|
* arch/arm/mach-ks8695/include/mach/memory.h
|
|
*
|
|
* Copyright (C) 2006 Andrew Victor
|
|
*
|
|
* KS8695 Memory definitions
|
|
*
|
|
* This file is licensed under the terms of the GNU General Public
|
|
* License version 2. This program is licensed "as is" without any
|
|
* warranty of any kind, whether express or implied.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_MEMORY_H
|
|
#define __ASM_ARCH_MEMORY_H
|
|
|
|
#include <mach/hardware.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#ifdef CONFIG_PCI
|
|
|
|
/* PCI mappings */
|
|
#define __virt_to_bus(x) ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA)
|
|
#define __bus_to_virt(x) ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET)
|
|
|
|
/* Platform-bus mapping */
|
|
extern struct bus_type platform_bus_type;
|
|
#define is_lbus_device(dev) (dev && dev->bus == &platform_bus_type)
|
|
#define __arch_dma_to_virt(dev, x) ({ (void *) (is_lbus_device(dev) ? \
|
|
__phys_to_virt(x) : __bus_to_virt(x)); })
|
|
#define __arch_virt_to_dma(dev, x) ({ is_lbus_device(dev) ? \
|
|
(dma_addr_t)__virt_to_phys((unsigned long)x) \
|
|
: (dma_addr_t)__virt_to_bus(x); })
|
|
#define __arch_pfn_to_dma(dev, pfn) \
|
|
({ dma_addr_t __dma = __pfn_to_phys(pfn); \
|
|
if (!is_lbus_device(dev)) \
|
|
__dma = __dma - PHYS_OFFSET + KS8695_PCIMEM_PA; \
|
|
__dma; })
|
|
|
|
#define __arch_dma_to_pfn(dev, x) \
|
|
({ dma_addr_t __dma = x; \
|
|
if (!is_lbus_device(dev)) \
|
|
__dma += PHYS_OFFSET - KS8695_PCIMEM_PA; \
|
|
__phys_to_pfn(__dma); \
|
|
})
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|