📄 dma.h
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#ifndef _ASM_IA64_DMA_H#define _ASM_IA64_DMA_H/* * Copyright (C) 1998, 1999 Hewlett-Packard Co * Copyright (C) 1998, 1999 David Mosberger-Tang <davidm@hpl.hp.com> */#include <linux/config.h>#include <linux/spinlock.h> /* And spinlocks */#include <linux/delay.h>#include <asm/io.h> /* need byte IO */#ifdef HAVE_REALLY_SLOW_DMA_CONTROLLER#define dma_outb outb_p#else#define dma_outb outb#endif#define dma_inb inb#define MAX_DMA_CHANNELS 8#define MAX_DMA_ADDRESS 0xffffffffULextern spinlock_t dma_spin_lock;/* From PCI */#ifdef CONFIG_PCIextern int isa_dma_bridge_buggy;#else#define isa_dma_bridge_buggy (0)#endif#endif /* _ASM_IA64_DMA_H */
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