Release 4.11 arch/arm/mach-ks8695/include/mach/memory.h

/*
 * 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
Overall Contributors
Person
Tokens
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CommitProp
Andrew Victor
71
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2
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Russell King
15
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3
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Nico Pitre
1
1.14%
1
14.29%
Arnd Bergmann
1
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1
14.29%
Total
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Directory: arch/arm/mach-ks8695/include/mach

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