diff options
Diffstat (limited to 'kernel/arch/mips/include/asm/mach-bmips')
| -rw-r--r-- | kernel/arch/mips/include/asm/mach-bmips/dma-coherence.h | 54 | ||||
| -rw-r--r-- | kernel/arch/mips/include/asm/mach-bmips/spaces.h | 18 |
2 files changed, 72 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/mach-bmips/dma-coherence.h b/kernel/arch/mips/include/asm/mach-bmips/dma-coherence.h new file mode 100644 index 000000000..d29781f02 --- /dev/null +++ b/kernel/arch/mips/include/asm/mach-bmips/dma-coherence.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org> + * Copyright (C) 2009 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __ASM_MACH_BMIPS_DMA_COHERENCE_H +#define __ASM_MACH_BMIPS_DMA_COHERENCE_H + +#include <asm/bmips.h> +#include <asm/cpu-type.h> +#include <asm/cpu.h> + +struct device; + +extern dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size); +extern dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page); +extern unsigned long plat_dma_addr_to_phys(struct device *dev, + dma_addr_t dma_addr); + +static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction direction) +{ +} + +static inline int plat_dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < DMA_BIT_MASK(24)) + return 0; + + return 1; +} + +static inline int plat_device_is_coherent(struct device *dev) +{ + return 0; +} + +#define plat_post_dma_flush bmips_post_dma_flush + +#endif /* __ASM_MACH_BMIPS_DMA_COHERENCE_H */ diff --git a/kernel/arch/mips/include/asm/mach-bmips/spaces.h b/kernel/arch/mips/include/asm/mach-bmips/spaces.h new file mode 100644 index 000000000..1b05bddc8 --- /dev/null +++ b/kernel/arch/mips/include/asm/mach-bmips/spaces.h @@ -0,0 +1,18 @@ +/* + * 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) 1994 - 1999, 2000, 03, 04 Ralf Baechle + * Copyright (C) 2000, 2002 Maciej W. Rozycki + * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc. + */ +#ifndef _ASM_BMIPS_SPACES_H +#define _ASM_BMIPS_SPACES_H + +/* Avoid collisions with system base register (SBR) region on BMIPS3300 */ +#define FIXADDR_TOP ((unsigned long)(long)(int)0xff000000) + +#include <asm/mach-generic/spaces.h> + +#endif /* __ASM_BMIPS_SPACES_H */ |