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Diffstat (limited to 'include/asm-ia64/sn/io.h')
| -rw-r--r-- | include/asm-ia64/sn/io.h | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/include/asm-ia64/sn/io.h b/include/asm-ia64/sn/io.h deleted file mode 100644 index 41c73a7..0000000 --- a/include/asm-ia64/sn/io.h +++ /dev/null @@ -1,274 +0,0 @@ -/* - * 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) 2000-2004 Silicon Graphics, Inc. All rights reserved. - */ - -#ifndef _ASM_SN_IO_H -#define _ASM_SN_IO_H -#include <linux/compiler.h> -#include <asm/intrinsics.h> - -extern void * sn_io_addr(unsigned long port) __attribute_const__; /* Forward definition */ -extern void __sn_mmiowb(void); /* Forward definition */ - -extern int num_cnodes; - -#define __sn_mf_a() ia64_mfa() - -extern void sn_dma_flush(unsigned long); - -#define __sn_inb ___sn_inb -#define __sn_inw ___sn_inw -#define __sn_inl ___sn_inl -#define __sn_outb ___sn_outb -#define __sn_outw ___sn_outw -#define __sn_outl ___sn_outl -#define __sn_readb ___sn_readb -#define __sn_readw ___sn_readw -#define __sn_readl ___sn_readl -#define __sn_readq ___sn_readq -#define __sn_readb_relaxed ___sn_readb_relaxed -#define __sn_readw_relaxed ___sn_readw_relaxed -#define __sn_readl_relaxed ___sn_readl_relaxed -#define __sn_readq_relaxed ___sn_readq_relaxed - -/* - * Convenience macros for setting/clearing bits using the above accessors - */ - -#define __sn_setq_relaxed(addr, val) \ - writeq((__sn_readq_relaxed(addr) | (val)), (addr)) -#define __sn_clrq_relaxed(addr, val) \ - writeq((__sn_readq_relaxed(addr) & ~(val)), (addr)) - -/* - * The following routines are SN Platform specific, called when - * a reference is made to inX/outX set macros. SN Platform - * inX set of macros ensures that Posted DMA writes on the - * Bridge is flushed. - * - * The routines should be self explainatory. - */ - -static inline unsigned int -___sn_inb (unsigned long port) -{ - volatile unsigned char *addr; - unsigned char ret = -1; - - if ((addr = sn_io_addr(port))) { - ret = *addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - } - return ret; -} - -static inline unsigned int -___sn_inw (unsigned long port) -{ - volatile unsigned short *addr; - unsigned short ret = -1; - - if ((addr = sn_io_addr(port))) { - ret = *addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - } - return ret; -} - -static inline unsigned int -___sn_inl (unsigned long port) -{ - volatile unsigned int *addr; - unsigned int ret = -1; - - if ((addr = sn_io_addr(port))) { - ret = *addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - } - return ret; -} - -static inline void -___sn_outb (unsigned char val, unsigned long port) -{ - volatile unsigned char *addr; - - if ((addr = sn_io_addr(port))) { - *addr = val; - __sn_mmiowb(); - } -} - -static inline void -___sn_outw (unsigned short val, unsigned long port) -{ - volatile unsigned short *addr; - - if ((addr = sn_io_addr(port))) { - *addr = val; - __sn_mmiowb(); - } -} - -static inline void -___sn_outl (unsigned int val, unsigned long port) -{ - volatile unsigned int *addr; - - if ((addr = sn_io_addr(port))) { - *addr = val; - __sn_mmiowb(); - } -} - -/* - * The following routines are SN Platform specific, called when - * a reference is made to readX/writeX set macros. SN Platform - * readX set of macros ensures that Posted DMA writes on the - * Bridge is flushed. - * - * The routines should be self explainatory. - */ - -static inline unsigned char -___sn_readb (const volatile void __iomem *addr) -{ - unsigned char val; - - val = *(volatile unsigned char __force *)addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - return val; -} - -static inline unsigned short -___sn_readw (const volatile void __iomem *addr) -{ - unsigned short val; - - val = *(volatile unsigned short __force *)addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - return val; -} - -static inline unsigned int -___sn_readl (const volatile void __iomem *addr) -{ - unsigned int val; - - val = *(volatile unsigned int __force *)addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - return val; -} - -static inline unsigned long -___sn_readq (const volatile void __iomem *addr) -{ - unsigned long val; - - val = *(volatile unsigned long __force *)addr; - __sn_mf_a(); - sn_dma_flush((unsigned long)addr); - return val; -} - -/* - * For generic and SN2 kernels, we have a set of fast access - * PIO macros. These macros are provided on SN Platform - * because the normal inX and readX macros perform an - * additional task of flushing Post DMA request on the Bridge. - * - * These routines should be self explainatory. - */ - -static inline unsigned int -sn_inb_fast (unsigned long port) -{ - volatile unsigned char *addr = (unsigned char *)port; - unsigned char ret; - - ret = *addr; - __sn_mf_a(); - return ret; -} - -static inline unsigned int -sn_inw_fast (unsigned long port) -{ - volatile unsigned short *addr = (unsigned short *)port; - unsigned short ret; - - ret = *addr; - __sn_mf_a(); - return ret; -} - -static inline unsigned int -sn_inl_fast (unsigned long port) -{ - volatile unsigned int *addr = (unsigned int *)port; - unsigned int ret; - - ret = *addr; - __sn_mf_a(); - return ret; -} - -static inline unsigned char -___sn_readb_relaxed (const volatile void __iomem *addr) -{ - return *(volatile unsigned char __force *)addr; -} - -static inline unsigned short -___sn_readw_relaxed (const volatile void __iomem *addr) -{ - return *(volatile unsigned short __force *)addr; -} - -static inline unsigned int -___sn_readl_relaxed (const volatile void __iomem *addr) -{ - return *(volatile unsigned int __force *) addr; -} - -static inline unsigned long -___sn_readq_relaxed (const volatile void __iomem *addr) -{ - return *(volatile unsigned long __force *) addr; -} - -struct pci_dev; - -static inline int -sn_pci_set_vchan(struct pci_dev *pci_dev, unsigned long *addr, int vchan) -{ - - if (vchan > 1) { - return -1; - } - - if (!(*addr >> 32)) /* Using a mask here would be cleaner */ - return 0; /* but this generates better code */ - - if (vchan == 1) { - /* Set Bit 57 */ - *addr |= (1UL << 57); - } else { - /* Clear Bit 57 */ - *addr &= ~(1UL << 57); - } - - return 0; -} - -#endif /* _ASM_SN_IO_H */ |