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OpenCloudOS-Kernel/arch/microblaze/include/asm/dma.h

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microblaze_v8: dma support Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-03-27 21:25:35 +08:00
/*
* Copyright (C) 2006 Atmark Techno, Inc.
*
* 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.
*/
#ifndef _ASM_MICROBLAZE_DMA_H
#define _ASM_MICROBLAZE_DMA_H
microblaze_mmu_v2: Update dma.h for MMU Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26 22:30:29 +08:00
#ifndef CONFIG_MMU
microblaze_v8: dma support Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-03-27 21:25:35 +08:00
/* we don't have dma address limit. define it as zero to be
* unlimited. */
#define MAX_DMA_ADDRESS (0)
microblaze_mmu_v2: Update dma.h for MMU Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26 22:30:29 +08:00
#else
/* Virtual address corresponding to last available physical memory address. */
#define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
#endif
microblaze_v8: dma support Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-03-27 21:25:35 +08:00
microblaze: Add isa_dma_bridge_buggy to dma.h It is necessary for several drivers. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-21 01:02:13 +08:00
#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;
#else
#define isa_dma_bridge_buggy (0)
#endif
microblaze_v8: dma support Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-03-27 21:25:35 +08:00
#endif /* _ASM_MICROBLAZE_DMA_H */