include/asm-ppc64/io.h - pub/scm/linux/kernel/git/wtarreau/linux-2.4 - Git at Google

 #ifndef _PPC64_IO_H
 #define _PPC64_IO_H

 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */

 #include <linux/config.h>
 #include <asm/page.h>
 #include <asm/byteorder.h>
 #ifdef CONFIG_PPC_ISERIES
 #include <asm/iSeries/iSeries_io.h>
 #endif
 #include <asm/memory.h>
 #include <asm/delay.h>

 #define SIO_CONFIG_RA	0x398
 #define SIO_CONFIG_RD	0x399

 #define SLOW_DOWN_IO
 /* Define this if you want to see virt_to_* messages */
 #undef __IO_DEBUG

 extern unsigned long isa_io_base;
 extern unsigned long isa_mem_base;
 extern unsigned long pci_io_base;
 extern unsigned long pci_dram_offset;
 extern int have_print;
 #define _IO_BASE	isa_io_base
 #define _ISA_MEM_BASE	isa_mem_base
 #define PCI_DRAM_OFFSET	pci_dram_offset

 #ifdef CONFIG_PPC_ISERIES
 #define readb(addr)		iSeries_Read_Byte((void*)(addr))
 #define readw(addr)		iSeries_Read_Word((void*)(addr))
 #define readl(addr)		iSeries_Read_Long((void*)(addr))
 #define writeb(data, addr)	iSeries_Write_Byte(data,((void*)(addr)))
 #define writew(data, addr)	iSeries_Write_Word(data,((void*)(addr)))
 #define writel(data, addr)	iSeries_Write_Long(data,((void*)(addr)))
 #define memset_io(a,b,c)	iSeries_memset_io((void *)(a),(b),(c))
 #define memcpy_fromio(a,b,c)	iSeries_memcpy_fromio((void *)(a), (void *)(b), (c))
 #define memcpy_toio(a,b,c)	iSeries_memcpy_toio((void *)(a), (void *)(b), (c))
 #define inb(addr)		readb(((unsigned long)(addr)))
 #define inw(addr)		readw(((unsigned long)(addr)))
 #define inl(addr)		readl(((unsigned long)(addr)))
 #define outb(data,addr)		writeb(data,((unsigned long)(addr)))
 #define outw(data,addr)		writew(data,((unsigned long)(addr)))
 #define outl(data,addr)		writel(data,((unsigned long)(addr)))
 #else
 #define readb(addr)		eeh_readb((void*)(addr))
 #define readw(addr)		eeh_readw((void*)(addr))
 #define readl(addr)		eeh_readl((void*)(addr))
 #define writeb(data, addr)	eeh_writeb((data), ((void*)(addr)))
 #define writew(data, addr)	eeh_writew((data), ((void*)(addr)))
 #define writel(data, addr)	eeh_writel((data), ((void*)(addr)))
 #define memset_io(a,b,c)	eeh_memset_io((void *)(a),(b),(c))
 #define memcpy_fromio(a,b,c)	eeh_memcpy_fromio((a),(void *)(b),(c))
 #define memcpy_toio(a,b,c)	eeh_memcpy_toio((void *)(a),(b),(c))
 #define inb(port)		eeh_inb((unsigned long)port)
 #define outb(val, port)		eeh_outb(val, (unsigned long)port)
 #define inw(port)		eeh_inw((unsigned long)port)
 #define outw(val, port)		eeh_outw(val, (unsigned long)port)
 #define inl(port)		eeh_inl((unsigned long)port)
 #define outl(val, port)		eeh_outl(val, (unsigned long)port)

 /*
  * The __raw_read/write macros don't do byte-swapping.
  * They are needed for some PCI devices such as the Matrox graphics
  * adapter which is programmed to operate in big endian mode.
  */
 #define __raw_readb(addr)              eeh_readb((void*)(addr))
 #define __raw_readw(addr)              eeh_raw_readw((void*)(addr))
 #define __raw_readl(addr)              eeh_raw_readl((void*)(addr))
 #define __raw_writeb(data, addr)       eeh_writeb((data), ((void*)(addr)))
 #define __raw_writew(data, addr)       eeh_raw_writew((data), ((void*)(addr)))
 #define __raw_writel(data, addr)       eeh_raw_writel((data), ((void*)(addr)))

 /*
  * The insw/outsw/insl/outsl macros don't do byte-swapping.
  * They are only used in practice for transferring buffers which
  * are arrays of bytes, and byte-swapping is not appropriate in
  * that case.  - paulus */
 #define insb(port, buf, ns)	_insb((u8 *)((port)+pci_io_base), (buf), (ns))
 #define outsb(port, buf, ns)	_outsb((u8 *)((port)+pci_io_base), (buf), (ns))
 #define insw(port, buf, ns)	_insw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
 #define outsw(port, buf, ns)	_outsw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
 #define insl(port, buf, nl)	_insl_ns((u32 *)((port)+pci_io_base), (buf), (nl))
 #define outsl(port, buf, nl)	_outsl_ns((u32 *)((port)+pci_io_base), (buf), (nl))
 #endif

 extern void _insb(volatile u8 *port, void *buf, int ns);
 extern void _outsb(volatile u8 *port, const void *buf, int ns);
 extern void _insw(volatile u16 *port, void *buf, int ns);
 extern void _outsw(volatile u16 *port, const void *buf, int ns);
 extern void _insl(volatile u32 *port, void *buf, int nl);
 extern void _outsl(volatile u32 *port, const void *buf, int nl);
 extern void _insw_ns(volatile u16 *port, void *buf, int ns);
 extern void _outsw_ns(volatile u16 *port, const void *buf, int ns);
 extern void _insl_ns(volatile u32 *port, void *buf, int nl);
 extern void _outsl_ns(volatile u32 *port, const void *buf, int nl);

 /*
  * output pause versions need a delay at least for the
  * w83c105 ide controller in a p610.
  */
 #define inb_p(port)             inb(port)
 #define outb_p(val, port)       (udelay(1), outb((val), (port)))
 #define inw_p(port)             inw(port)
 #define outw_p(val, port)       (udelay(1), outw((val), (port)))
 #define inl_p(port)             inl(port)
 #define outl_p(val, port)       (udelay(1), outl((val), (port)))

 /*
  * The *_ns versions below don't do byte-swapping.
  * Neither do the standard versions now, these are just here
  * for older code.
  */
 #define insw_ns(port, buf, ns)	_insw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
 #define outsw_ns(port, buf, ns)	_outsw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
 #define insl_ns(port, buf, nl)	_insl_ns((u32 *)((port)+pci_io_base), (buf), (nl))
 #define outsl_ns(port, buf, nl)	_outsl_ns((u32 *)((port)+pci_io_base), (buf), (nl))


 #define IO_SPACE_LIMIT ~(0UL)
 #define MEM_SPACE_LIMIT ~(0UL)


 #ifdef __KERNEL__
 /*
  * Map in an area of physical address space, for accessing
  * I/O devices etc.
  */
 extern void *__ioremap(unsigned long address, unsigned long size,
 		       unsigned long flags);
 extern void *ioremap(unsigned long address, unsigned long size);
 #define ioremap_nocache(addr, size)	ioremap((addr), (size))
 extern void iounmap(void *addr);

 /*
  * Change virtual addresses to physical addresses and vv, for
  * addresses in the area where the kernel has the RAM mapped.
  */
 static inline unsigned long virt_to_phys(volatile void * address)
 {
 #ifdef __IO_DEBUG
 	printk("virt_to_phys: 0x%08lx -> 0x%08lx\n",
 			(unsigned long) address,
 			__pa((unsigned long)address));
 #endif
 	return __pa((unsigned long)address);
 }

 static inline void * phys_to_virt(unsigned long address)
 {
 #ifdef __IO_DEBUG
 	printk("phys_to_virt: 0x%08lx -> 0x%08lx\n", address, __va(address));
 #endif
 	return (void *) __va(address);
 }

 /*
  * Change "struct page" to physical address.
  */
 #define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)


 #endif /* __KERNEL__ */

 static inline void iosync(void)
 {
         __asm__ __volatile__ ("sync" : : : "memory");
 }

 /* Enforce in-order execution of data I/O.
  * No distinction between read/write on PPC; use eieio for all three.
  */
 #define iobarrier_rw() eieio()
 #define iobarrier_r()  eieio()
 #define iobarrier_w()  eieio()

 /*
  * 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
  * Until we can validate all required device drivers are weakc safe, an
  * excess of syncs before the MMIO operations will make things work.  On
  * sstar, sync time is << than mmio time, so this should not be a big impact.
  */
 static inline int in_8(volatile unsigned char *addr)
 {
 	int ret;

 	__asm__ __volatile__("sync; lbz%U1%X1 %0,%1; sync" : "=r" (ret) : "m" (*addr));
 	return ret;
 }

 static inline void out_8(volatile unsigned char *addr, int val)
 {
 	__asm__ __volatile__("sync; stb%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val));
 }

 static inline int in_le16(volatile unsigned short *addr)
 {
 	int ret;

 	__asm__ __volatile__("sync; lhbrx %0,0,%1; sync" : "=r" (ret) :
 			      "r" (addr), "m" (*addr));
 	return ret;
 }

 static inline int in_be16(volatile unsigned short *addr)
 {
 	int ret;

 	__asm__ __volatile__("sync; lhz%U1%X1 %0,%1; sync" : "=r" (ret) : "m" (*addr));
 	return ret;
 }

 static inline void out_le16(volatile unsigned short *addr, int val)
 {
 	__asm__ __volatile__("sync; sthbrx %1,0,%2; sync" : "=m" (*addr) :
 			      "r" (val), "r" (addr));
 }

 static inline void out_be16(volatile unsigned short *addr, int val)
 {
 	__asm__ __volatile__("sync; sth%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val));
 }

 static inline unsigned in_le32(volatile unsigned *addr)
 {
 	unsigned ret;

 	__asm__ __volatile__("sync; lwbrx %0,0,%1; sync" : "=r" (ret) :
 			     "r" (addr), "m" (*addr));
 	return ret;
 }

 static inline unsigned in_be32(volatile unsigned *addr)
 {
 	unsigned ret;

 	__asm__ __volatile__("sync; lwz%U1%X1 %0,%1; sync" : "=r" (ret) : "m" (*addr));
 	return ret;
 }

 static inline void out_le32(volatile unsigned *addr, int val)
 {
 	__asm__ __volatile__("sync; stwbrx %1,0,%2; sync" : "=m" (*addr) :
 			     "r" (val), "r" (addr));
 }

 static inline void out_be32(volatile unsigned *addr, int val)
 {
 	__asm__ __volatile__("sync; stw%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val));
 }

 #ifndef CONFIG_PPC_ISERIES
 #include <asm/eeh.h>
 #endif

 #ifdef __KERNEL__
 static inline int check_signature(unsigned long io_addr,
 	const unsigned char *signature, int length)
 {
 	int retval = 0;
 #ifndef CONFIG_PPC_ISERIES
 	do {
 		if (readb(io_addr) != *signature)
 			goto out;
 		io_addr++;
 		signature++;
 		length--;
 	} while (length);
 	retval = 1;
 out:
 #endif
 	return retval;
 }

 /* Nothing to do */

 #define dma_cache_inv(_start,_size)		do { } while (0)
 #define dma_cache_wback(_start,_size)		do { } while (0)
 #define dma_cache_wback_inv(_start,_size)	do { } while (0)

 #endif /* __KERNEL__ */

 #endif /* _PPC64_IO_H */
	#ifndef _PPC64_IO_H
	#define _PPC64_IO_H

	/*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License
	* as published by the Free Software Foundation; either version
	* 2 of the License, or (at your option) any later version.
	*/

	#include <linux/config.h>
	#include <asm/page.h>
	#include <asm/byteorder.h>
	#ifdef CONFIG_PPC_ISERIES
	#include <asm/iSeries/iSeries_io.h>
	#endif
	#include <asm/memory.h>
	#include <asm/delay.h>

	#define SIO_CONFIG_RA 0x398
	#define SIO_CONFIG_RD 0x399

	#define SLOW_DOWN_IO
	/* Define this if you want to see virt_to_* messages */
	#undef __IO_DEBUG

	extern unsigned long isa_io_base;
	extern unsigned long isa_mem_base;
	extern unsigned long pci_io_base;
	extern unsigned long pci_dram_offset;
	extern int have_print;
	#define _IO_BASE isa_io_base
	#define _ISA_MEM_BASE isa_mem_base
	#define PCI_DRAM_OFFSET pci_dram_offset

	#ifdef CONFIG_PPC_ISERIES
	#define readb(addr) iSeries_Read_Byte((void*)(addr))
	#define readw(addr) iSeries_Read_Word((void*)(addr))
	#define readl(addr) iSeries_Read_Long((void*)(addr))
	#define writeb(data, addr) iSeries_Write_Byte(data,((void*)(addr)))
	#define writew(data, addr) iSeries_Write_Word(data,((void*)(addr)))
	#define writel(data, addr) iSeries_Write_Long(data,((void*)(addr)))
	#define memset_io(a,b,c) iSeries_memset_io((void *)(a),(b),(c))
	#define memcpy_fromio(a,b,c) iSeries_memcpy_fromio((void )(a), (void )(b), (c))
	#define memcpy_toio(a,b,c) iSeries_memcpy_toio((void )(a), (void )(b), (c))
	#define inb(addr) readb(((unsigned long)(addr)))
	#define inw(addr) readw(((unsigned long)(addr)))
	#define inl(addr) readl(((unsigned long)(addr)))
	#define outb(data,addr) writeb(data,((unsigned long)(addr)))
	#define outw(data,addr) writew(data,((unsigned long)(addr)))
	#define outl(data,addr) writel(data,((unsigned long)(addr)))
	#else
	#define readb(addr) eeh_readb((void*)(addr))
	#define readw(addr) eeh_readw((void*)(addr))
	#define readl(addr) eeh_readl((void*)(addr))
	#define writeb(data, addr) eeh_writeb((data), ((void*)(addr)))
	#define writew(data, addr) eeh_writew((data), ((void*)(addr)))
	#define writel(data, addr) eeh_writel((data), ((void*)(addr)))
	#define memset_io(a,b,c) eeh_memset_io((void *)(a),(b),(c))
	#define memcpy_fromio(a,b,c) eeh_memcpy_fromio((a),(void *)(b),(c))
	#define memcpy_toio(a,b,c) eeh_memcpy_toio((void *)(a),(b),(c))
	#define inb(port) eeh_inb((unsigned long)port)
	#define outb(val, port) eeh_outb(val, (unsigned long)port)
	#define inw(port) eeh_inw((unsigned long)port)
	#define outw(val, port) eeh_outw(val, (unsigned long)port)
	#define inl(port) eeh_inl((unsigned long)port)
	#define outl(val, port) eeh_outl(val, (unsigned long)port)

	/*
	* The __raw_read/write macros don't do byte-swapping.
	* They are needed for some PCI devices such as the Matrox graphics
	* adapter which is programmed to operate in big endian mode.
	*/
	#define __raw_readb(addr) eeh_readb((void*)(addr))
	#define __raw_readw(addr) eeh_raw_readw((void*)(addr))
	#define __raw_readl(addr) eeh_raw_readl((void*)(addr))
	#define __raw_writeb(data, addr) eeh_writeb((data), ((void*)(addr)))
	#define __raw_writew(data, addr) eeh_raw_writew((data), ((void*)(addr)))
	#define __raw_writel(data, addr) eeh_raw_writel((data), ((void*)(addr)))

	/*
	* The insw/outsw/insl/outsl macros don't do byte-swapping.
	* They are only used in practice for transferring buffers which
	* are arrays of bytes, and byte-swapping is not appropriate in
	* that case. - paulus */
	#define insb(port, buf, ns) _insb((u8 *)((port)+pci_io_base), (buf), (ns))
	#define outsb(port, buf, ns) _outsb((u8 *)((port)+pci_io_base), (buf), (ns))
	#define insw(port, buf, ns) _insw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
	#define outsw(port, buf, ns) _outsw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
	#define insl(port, buf, nl) _insl_ns((u32 *)((port)+pci_io_base), (buf), (nl))
	#define outsl(port, buf, nl) _outsl_ns((u32 *)((port)+pci_io_base), (buf), (nl))
	#endif

	extern void _insb(volatile u8 port, void buf, int ns);
	extern void _outsb(volatile u8 port, const void buf, int ns);
	extern void _insw(volatile u16 port, void buf, int ns);
	extern void _outsw(volatile u16 port, const void buf, int ns);
	extern void _insl(volatile u32 port, void buf, int nl);
	extern void _outsl(volatile u32 port, const void buf, int nl);
	extern void _insw_ns(volatile u16 port, void buf, int ns);
	extern void _outsw_ns(volatile u16 port, const void buf, int ns);
	extern void _insl_ns(volatile u32 port, void buf, int nl);
	extern void _outsl_ns(volatile u32 port, const void buf, int nl);

	/*
	* output pause versions need a delay at least for the
	* w83c105 ide controller in a p610.
	*/
	#define inb_p(port) inb(port)
	#define outb_p(val, port) (udelay(1), outb((val), (port)))
	#define inw_p(port) inw(port)
	#define outw_p(val, port) (udelay(1), outw((val), (port)))
	#define inl_p(port) inl(port)
	#define outl_p(val, port) (udelay(1), outl((val), (port)))

	/*
	* The *_ns versions below don't do byte-swapping.
	* Neither do the standard versions now, these are just here
	* for older code.
	*/
	#define insw_ns(port, buf, ns) _insw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
	#define outsw_ns(port, buf, ns) _outsw_ns((u16 *)((port)+pci_io_base), (buf), (ns))
	#define insl_ns(port, buf, nl) _insl_ns((u32 *)((port)+pci_io_base), (buf), (nl))
	#define outsl_ns(port, buf, nl) _outsl_ns((u32 *)((port)+pci_io_base), (buf), (nl))


	#define IO_SPACE_LIMIT ~(0UL)
	#define MEM_SPACE_LIMIT ~(0UL)


	#ifdef __KERNEL__
	/*
	* Map in an area of physical address space, for accessing
	* I/O devices etc.
	*/
	extern void *__ioremap(unsigned long address, unsigned long size,
	unsigned long flags);
	extern void *ioremap(unsigned long address, unsigned long size);
	#define ioremap_nocache(addr, size) ioremap((addr), (size))
	extern void iounmap(void *addr);

	/*
	* Change virtual addresses to physical addresses and vv, for
	* addresses in the area where the kernel has the RAM mapped.
	*/
	static inline unsigned long virt_to_phys(volatile void * address)
	{
	#ifdef __IO_DEBUG
	printk("virt_to_phys: 0x%08lx -> 0x%08lx\n",
	(unsigned long) address,
	__pa((unsigned long)address));
	#endif
	return __pa((unsigned long)address);
	}

	static inline void * phys_to_virt(unsigned long address)
	{
	#ifdef __IO_DEBUG
	printk("phys_to_virt: 0x%08lx -> 0x%08lx\n", address, __va(address));
	#endif
	return (void *) __va(address);
	}

	/*
	* Change "struct page" to physical address.
	*/
	#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)


	#endif /* __KERNEL__ */

	static inline void iosync(void)
	{
	__asm__ __volatile__ ("sync" : : : "memory");
	}

	/* Enforce in-order execution of data I/O.
	* No distinction between read/write on PPC; use eieio for all three.
	*/
	#define iobarrier_rw() eieio()
	#define iobarrier_r() eieio()
	#define iobarrier_w() eieio()

	/*
	* 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
	* Until we can validate all required device drivers are weakc safe, an
	* excess of syncs before the MMIO operations will make things work. On
	* sstar, sync time is << than mmio time, so this should not be a big impact.
	*/
	static inline int in_8(volatile unsigned char *addr)
	{
	int ret;

	__asm__ __volatile__("sync; lbz%U1%X1 %0,%1; sync" : "=r" (ret) : "m" (*addr));
	return ret;
	}

	static inline void out_8(volatile unsigned char *addr, int val)
	{
	__asm__ __volatile__("sync; stb%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val));
	}

	static inline int in_le16(volatile unsigned short *addr)
	{
	int ret;

	__asm__ __volatile__("sync; lhbrx %0,0,%1; sync" : "=r" (ret) :
	"r" (addr), "m" (*addr));
	return ret;
	}

	static inline int in_be16(volatile unsigned short *addr)
	{
	int ret;

	__asm__ __volatile__("sync; lhz%U1%X1 %0,%1; sync" : "=r" (ret) : "m" (*addr));
	return ret;
	}

	static inline void out_le16(volatile unsigned short *addr, int val)
	{
	__asm__ __volatile__("sync; sthbrx %1,0,%2; sync" : "=m" (*addr) :
	"r" (val), "r" (addr));
	}

	static inline void out_be16(volatile unsigned short *addr, int val)
	{
	__asm__ __volatile__("sync; sth%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val));
	}

	static inline unsigned in_le32(volatile unsigned *addr)
	{
	unsigned ret;

	__asm__ __volatile__("sync; lwbrx %0,0,%1; sync" : "=r" (ret) :
	"r" (addr), "m" (*addr));
	return ret;
	}

	static inline unsigned in_be32(volatile unsigned *addr)
	{
	unsigned ret;

	__asm__ __volatile__("sync; lwz%U1%X1 %0,%1; sync" : "=r" (ret) : "m" (*addr));
	return ret;
	}

	static inline void out_le32(volatile unsigned *addr, int val)
	{
	__asm__ __volatile__("sync; stwbrx %1,0,%2; sync" : "=m" (*addr) :
	"r" (val), "r" (addr));
	}

	static inline void out_be32(volatile unsigned *addr, int val)
	{
	__asm__ __volatile__("sync; stw%U0%X0 %1,%0; sync" : "=m" (*addr) : "r" (val));
	}

	#ifndef CONFIG_PPC_ISERIES
	#include <asm/eeh.h>
	#endif

	#ifdef __KERNEL__
	static inline int check_signature(unsigned long io_addr,
	const unsigned char *signature, int length)
	{
	int retval = 0;
	#ifndef CONFIG_PPC_ISERIES
	do {
	if (readb(io_addr) != *signature)
	goto out;
	io_addr++;
	signature++;
	length--;
	} while (length);
	retval = 1;
	out:
	#endif
	return retval;
	}

	/* Nothing to do */

	#define dma_cache_inv(_start,_size) do { } while (0)
	#define dma_cache_wback(_start,_size) do { } while (0)
	#define dma_cache_wback_inv(_start,_size) do { } while (0)

	#endif /* __KERNEL__ */

	#endif /* _PPC64_IO_H */