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[POWERPC] Fix __raw* accessors

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The new IO accessor code allows to stick a token in the top bit of MMIO
addresses which gets masked out during actual accesses. However, the
__raw_* accessors forgot to mask it out. This fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt 2006-11-21 12:35:29 +11:00 committed by Paul Mackerras
parent 68a64357d1
commit 757db1ed9b
1 changed files with 45 additions and 47 deletions
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92
include/asm-powerpc/io.h
View file

@ -185,53 +185,6 @@ extern void _memcpy_toio(volatile void __iomem *dest, const void *src,
* of the accessors.
*/
/*
* Non ordered and non-swapping "raw" accessors
*/
static inline unsigned char __raw_readb(const volatile void __iomem *addr)
{
return *(volatile unsigned char __force *)addr;
}
static inline unsigned short __raw_readw(const volatile void __iomem *addr)
{
return *(volatile unsigned short __force *)addr;
}
static inline unsigned int __raw_readl(const volatile void __iomem *addr)
{
return *(volatile unsigned int __force *)addr;
}
static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
{
*(volatile unsigned char __force *)addr = v;
}
static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
{
*(volatile unsigned short __force *)addr = v;
}
static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
{
*(volatile unsigned int __force *)addr = v;
}
#ifdef __powerpc64__
static inline unsigned long __raw_readq(const volatile void __iomem *addr)
{
return *(volatile unsigned long __force *)addr;
}
static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
{
*(volatile unsigned long __force *)addr = v;
}
#endif /* __powerpc64__ */
/*
*
* PCI PIO and MMIO accessors.
*
*/
/*
* Include the EEH definitions when EEH is enabled only so they don't get
* in the way when building for 32 bits
@ -291,7 +244,52 @@ do { \
#define PCI_FIX_ADDR(addr) (addr)
#endif
/*
* Non ordered and non-swapping "raw" accessors
*/
static inline unsigned char __raw_readb(const volatile void __iomem *addr)
{
return *(volatile unsigned char __force *)PCI_FIX_ADDR(addr);
}
static inline unsigned short __raw_readw(const volatile void __iomem *addr)
{
return *(volatile unsigned short __force *)PCI_FIX_ADDR(addr);
}
static inline unsigned int __raw_readl(const volatile void __iomem *addr)
{
return *(volatile unsigned int __force *)PCI_FIX_ADDR(addr);
}
static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
{
*(volatile unsigned char __force *)PCI_FIX_ADDR(addr) = v;
}
static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
{
*(volatile unsigned short __force *)PCI_FIX_ADDR(addr) = v;
}
static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
{
*(volatile unsigned int __force *)PCI_FIX_ADDR(addr) = v;
}
#ifdef __powerpc64__
static inline unsigned long __raw_readq(const volatile void __iomem *addr)
{
return *(volatile unsigned long __force *)PCI_FIX_ADDR(addr);
}
static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
{
*(volatile unsigned long __force *)PCI_FIX_ADDR(addr) = v;
}
#endif /* __powerpc64__ */
/*
*
* PCI PIO and MMIO accessors.
*
*
* On 32 bits, PIO operations have a recovery mechanism in case they trigger
* machine checks (which they occasionally do when probing non existing
* IO ports on some platforms, like PowerMac and 8xx).