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linux/include/asm-m68k/io.h
Ralf Baechle 622a9edd91 Remove dma_cache_(wback|inv|wback_inv) functions 
dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
cache managment API for I/O purposes.  Originally it was basically the raw
MIPS low level cache API exported to the entire world.  The API has
suffered from a lack of documentation, was not very widely used unlike it's
more modern brothers and can easily be replaced by dma_cache_sync.  So
remove it rsp.  turn the surviving bits back into an arch private API, as
discussed on linux-arch.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:57 -07:00

422 lines
12 KiB
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Raw Blame History

/*
* linux/include/asm-m68k/io.h
*
* 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other
* IO access
* - added Q40 support
* - added skeleton for GG-II and Amiga PCMCIA
* 2/3/01 RZ: - moved a few more defs into raw_io.h
*
* inX/outX/readX/writeX should not be used by any driver unless it does
* ISA or PCI access. Other drivers should use function defined in raw_io.h
* or define its own macros on top of these.
*
* inX(),outX() are for PCI and ISA I/O
* readX(),writeX() are for PCI memory
* isa_readX(),isa_writeX() are for ISA memory
*
* moved mem{cpy,set}_*io inside CONFIG_PCI
*/
#ifndef _IO_H
#define _IO_H
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <asm/raw_io.h>
#include <asm/virtconvert.h>
#include <asm-generic/iomap.h>
#ifdef CONFIG_ATARI
#include <asm/atarihw.h>
#endif
/*
* IO/MEM definitions for various ISA bridges
*/
#ifdef CONFIG_Q40
#define q40_isa_io_base 0xff400000
#define q40_isa_mem_base 0xff800000
#define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr)))
#define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+ 4*((unsigned long)(ioaddr)))
#define Q40_ISA_MEM_B(madr) (q40_isa_mem_base+1+4*((unsigned long)(madr)))
#define Q40_ISA_MEM_W(madr) (q40_isa_mem_base+ 4*((unsigned long)(madr)))
#define MULTI_ISA 0
#endif /* Q40 */
/* GG-II Zorro to ISA bridge */
#ifdef CONFIG_GG2
extern unsigned long gg2_isa_base;
#define GG2_ISA_IO_B(ioaddr) (gg2_isa_base+1+((unsigned long)(ioaddr)*4))
#define GG2_ISA_IO_W(ioaddr) (gg2_isa_base+ ((unsigned long)(ioaddr)*4))
#define GG2_ISA_MEM_B(madr) (gg2_isa_base+1+(((unsigned long)(madr)*4) & 0xfffff))
#define GG2_ISA_MEM_W(madr) (gg2_isa_base+ (((unsigned long)(madr)*4) & 0xfffff))
#ifndef MULTI_ISA
#define MULTI_ISA 0
#else
#undef MULTI_ISA
#define MULTI_ISA 1
#endif
#endif /* GG2 */
#ifdef CONFIG_AMIGA_PCMCIA
#include <asm/amigayle.h>
#define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) )
#define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) )
#ifndef MULTI_ISA
#define MULTI_ISA 0
#else
#undef MULTI_ISA
#define MULTI_ISA 1
#endif
#endif /* AMIGA_PCMCIA */
#ifdef CONFIG_ISA
#if MULTI_ISA == 0
#undef MULTI_ISA
#endif
#define Q40_ISA (1)
#define GG2_ISA (2)
#define AG_ISA (3)
#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
#define ISA_TYPE Q40_ISA
#define ISA_SEX 0
#endif
#if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA)
#define ISA_TYPE AG_ISA
#define ISA_SEX 1
#endif
#if defined(CONFIG_GG2) && !defined(MULTI_ISA)
#define ISA_TYPE GG2_ISA
#define ISA_SEX 0
#endif
#ifdef MULTI_ISA
extern int isa_type;
extern int isa_sex;
#define ISA_TYPE isa_type
#define ISA_SEX isa_sex
#endif
/*
* define inline addr translation functions. Normally only one variant will
* be compiled in so the case statement will be optimised away
*/
static inline u8 __iomem *isa_itb(unsigned long addr)
{
switch(ISA_TYPE)
{
#ifdef CONFIG_Q40
case Q40_ISA: return (u8 __iomem *)Q40_ISA_IO_B(addr);
#endif
#ifdef CONFIG_GG2
case GG2_ISA: return (u8 __iomem *)GG2_ISA_IO_B(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
case AG_ISA: return (u8 __iomem *)AG_ISA_IO_B(addr);
#endif
default: return NULL; /* avoid warnings, just in case */
}
}
static inline u16 __iomem *isa_itw(unsigned long addr)
{
switch(ISA_TYPE)
{
#ifdef CONFIG_Q40
case Q40_ISA: return (u16 __iomem *)Q40_ISA_IO_W(addr);
#endif
#ifdef CONFIG_GG2
case GG2_ISA: return (u16 __iomem *)GG2_ISA_IO_W(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
case AG_ISA: return (u16 __iomem *)AG_ISA_IO_W(addr);
#endif
default: return NULL; /* avoid warnings, just in case */
}
}
static inline u32 __iomem *isa_itl(unsigned long addr)
{
switch(ISA_TYPE)
{
#ifdef CONFIG_AMIGA_PCMCIA
case AG_ISA: return (u32 __iomem *)AG_ISA_IO_W(addr);
#endif
default: return 0; /* avoid warnings, just in case */
}
}
static inline u8 __iomem *isa_mtb(unsigned long addr)
{
switch(ISA_TYPE)
{
#ifdef CONFIG_Q40
case Q40_ISA: return (u8 __iomem *)Q40_ISA_MEM_B(addr);
#endif
#ifdef CONFIG_GG2
case GG2_ISA: return (u8 __iomem *)GG2_ISA_MEM_B(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
case AG_ISA: return (u8 __iomem *)addr;
#endif
default: return NULL; /* avoid warnings, just in case */
}
}
static inline u16 __iomem *isa_mtw(unsigned long addr)
{
switch(ISA_TYPE)
{
#ifdef CONFIG_Q40
case Q40_ISA: return (u16 __iomem *)Q40_ISA_MEM_W(addr);
#endif
#ifdef CONFIG_GG2
case GG2_ISA: return (u16 __iomem *)GG2_ISA_MEM_W(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
case AG_ISA: return (u16 __iomem *)addr;
#endif
default: return NULL; /* avoid warnings, just in case */
}
}
#define isa_inb(port) in_8(isa_itb(port))
#define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
#define isa_inl(port) (ISA_SEX ? in_be32(isa_itl(port)) : in_le32(isa_itl(port)))
#define isa_outb(val,port) out_8(isa_itb(port),(val))
#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
#define isa_outl(val,port) (ISA_SEX ? out_be32(isa_itl(port),(val)) : out_le32(isa_itl(port),(val)))
#define isa_readb(p) in_8(isa_mtb((unsigned long)(p)))
#define isa_readw(p) \
(ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
: in_le16(isa_mtw((unsigned long)(p))))
#define isa_writeb(val,p) out_8(isa_mtb((unsigned long)(p)),(val))
#define isa_writew(val,p) \
(ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \
: out_le16(isa_mtw((unsigned long)(p)),(val)))
static inline void isa_delay(void)
{
switch(ISA_TYPE)
{
#ifdef CONFIG_Q40
case Q40_ISA: isa_outb(0,0x80); break;
#endif
#ifdef CONFIG_GG2
case GG2_ISA: break;
#endif
#ifdef CONFIG_AMIGA_PCMCIA
case AG_ISA: break;
#endif
default: break; /* avoid warnings */
}
}
#define isa_inb_p(p) ({u8 v=isa_inb(p);isa_delay();v;})
#define isa_outb_p(v,p) ({isa_outb((v),(p));isa_delay();})
#define isa_inw_p(p) ({u16 v=isa_inw(p);isa_delay();v;})
#define isa_outw_p(v,p) ({isa_outw((v),(p));isa_delay();})
#define isa_inl_p(p) ({u32 v=isa_inl(p);isa_delay();v;})
#define isa_outl_p(v,p) ({isa_outl((v),(p));isa_delay();})
#define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (u8 *)(buf), (nr))
#define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (u8 *)(buf), (nr))
#define isa_insw(port, buf, nr) \
(ISA_SEX ? raw_insw(isa_itw(port), (u16 *)(buf), (nr)) : \
raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
#define isa_outsw(port, buf, nr) \
(ISA_SEX ? raw_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \
raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
#define isa_insl(port, buf, nr) \
(ISA_SEX ? raw_insl(isa_itl(port), (u32 *)(buf), (nr)) : \
raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1))
#define isa_outsl(port, buf, nr) \
(ISA_SEX ? raw_outsl(isa_itl(port), (u32 *)(buf), (nr)) : \
raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1))
#endif /* CONFIG_ISA */
#if defined(CONFIG_ISA) && !defined(CONFIG_PCI)
#define inb isa_inb
#define inb_p isa_inb_p
#define outb isa_outb
#define outb_p isa_outb_p
#define inw isa_inw
#define inw_p isa_inw_p
#define outw isa_outw
#define outw_p isa_outw_p
#define inl isa_inl
#define inl_p isa_inl_p
#define outl isa_outl
#define outl_p isa_outl_p
#define insb isa_insb
#define insw isa_insw
#define insl isa_insl
#define outsb isa_outsb
#define outsw isa_outsw
#define outsl isa_outsl
#define readb isa_readb
#define readw isa_readw
#define writeb isa_writeb
#define writew isa_writew
#endif /* CONFIG_ISA */
#if defined(CONFIG_PCI)
#define readl(addr) in_le32(addr)
#define writel(val,addr) out_le32((addr),(val))
/* those can be defined for both ISA and PCI - it won't work though */
#define readb(addr) in_8(addr)
#define readw(addr) in_le16(addr)
#define writeb(val,addr) out_8((addr),(val))
#define writew(val,addr) out_le16((addr),(val))
#define readb_relaxed(addr) readb(addr)
#define readw_relaxed(addr) readw(addr)
#define readl_relaxed(addr) readl(addr)
#ifndef CONFIG_ISA
#define inb(port) in_8(port)
#define outb(val,port) out_8((port),(val))
#define inw(port) in_le16(port)
#define outw(val,port) out_le16((port),(val))
#define inl(port) in_le32(port)
#define outl(val,port) out_le32((port),(val))
#else
/*
* kernel with both ISA and PCI compiled in, those have
* conflicting defs for in/out. Simply consider port < 1024
* ISA and everything else PCI. read,write not defined
* in this case
*/
#define inb(port) ((port)<1024 ? isa_inb(port) : in_8(port))
#define inb_p(port) ((port)<1024 ? isa_inb_p(port) : in_8(port))
#define inw(port) ((port)<1024 ? isa_inw(port) : in_le16(port))
#define inw_p(port) ((port)<1024 ? isa_inw_p(port) : in_le16(port))
#define inl(port) ((port)<1024 ? isa_inl(port) : in_le32(port))
#define inl_p(port) ((port)<1024 ? isa_inl_p(port) : in_le32(port))
#define outb(val,port) ((port)<1024 ? isa_outb((val),(port)) : out_8((port),(val)))
#define outb_p(val,port) ((port)<1024 ? isa_outb_p((val),(port)) : out_8((port),(val)))
#define outw(val,port) ((port)<1024 ? isa_outw((val),(port)) : out_le16((port),(val)))
#define outw_p(val,port) ((port)<1024 ? isa_outw_p((val),(port)) : out_le16((port),(val)))
#define outl(val,port) ((port)<1024 ? isa_outl((val),(port)) : out_le32((port),(val)))
#define outl_p(val,port) ((port)<1024 ? isa_outl_p((val),(port)) : out_le32((port),(val)))
#endif
#endif /* CONFIG_PCI */
#if !defined(CONFIG_ISA) && !defined(CONFIG_PCI)
/*
* We need to define dummy functions for GENERIC_IOMAP support.
*/
#define inb(port) 0xff
#define inb_p(port) 0xff
#define outb(val,port) ((void)0)
#define outb_p(val,port) ((void)0)
#define inw(port) 0xffff
#define outw(val,port) ((void)0)
#define inl(port) 0xffffffffUL
#define outl(val,port) ((void)0)
#define insb(port,buf,nr) ((void)0)
#define outsb(port,buf,nr) ((void)0)
#define insw(port,buf,nr) ((void)0)
#define outsw(port,buf,nr) ((void)0)
#define insl(port,buf,nr) ((void)0)
#define outsl(port,buf,nr) ((void)0)
/*
* These should be valid on any ioremap()ed region
*/
#define readb(addr) in_8(addr)
#define writeb(val,addr) out_8((addr),(val))
#define readw(addr) in_le16(addr)
#define writew(val,addr) out_le16((addr),(val))
#endif
#if !defined(CONFIG_PCI)
#define readl(addr) in_le32(addr)
#define writel(val,addr) out_le32((addr),(val))
#endif
#define mmiowb()
static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}
static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}
static inline void __iomem *ioremap_writethrough(unsigned long physaddr,
unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}
static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
}
static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
{
__builtin_memset((void __force *) addr, val, count);
}
static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
{
__builtin_memcpy(dst, (void __force *) src, count);
}
static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
{
__builtin_memcpy((void __force *) dst, src, count);
}
#ifndef CONFIG_SUN3
#define IO_SPACE_LIMIT 0xffff
#else
#define IO_SPACE_LIMIT 0x0fffffff
#endif
#endif /* __KERNEL__ */
#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
*/
#define xlate_dev_mem_ptr(p) __va(p)
/*
* Convert a virtual cached pointer to an uncached pointer
*/
#define xlate_dev_kmem_ptr(p) p
#endif /* _IO_H */
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