From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/arm/mach-ks8695/include/mach/memory.h | 51 ++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 arch/arm/mach-ks8695/include/mach/memory.h (limited to 'arch/arm/mach-ks8695/include/mach/memory.h') diff --git a/arch/arm/mach-ks8695/include/mach/memory.h b/arch/arm/mach-ks8695/include/mach/memory.h new file mode 100644 index 000000000..ab0d27fa8 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/memory.h @@ -0,0 +1,51 @@ +/* + * 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 + +#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 -- cgit v1.2.3-54-g00ecf