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Commit b3ada9d0 authored by Greentime Hu's avatar Greentime Hu
Browse files

asm-generic/io.h: move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU 



It allows some architectures to use this generic macro instead of
defining theirs.

sparc: io: To use the define of ioremap_[nocache|wc|wb] in asm-generic/io.h
It will move the ioremap_nocache out of the CONFIG_MMU ifdef. This means that
in order to suppress re-definition errors we need to remove the #define
in arch/sparc/include/asm/io_32.h. Also, the change adds a prototype for
ioremap where size is size_t and offset is phys_addr_t so fix that as well.

Signed-off-by: default avatarGreentime Hu <greentime@andestech.com>
parent 94bc61ea

arch/sparc/include/asm/io_32.h

+0 −5
Original line number Diff line number Diff line
@@ -127,12 +127,7 @@ static inline void sbus_memcpy_toio(volatile void __iomem *dst, 
 * Bus number may be embedded in the higher bits of the physical address.

 * This is why we have no bus number argument to ioremap().

 */

void __iomem *ioremap(unsigned long offset, unsigned long size);

#define ioremap_nocache(X,Y)	ioremap((X),(Y))

#define ioremap_wc(X,Y)		ioremap((X),(Y))

#define ioremap_wt(X,Y)		ioremap((X),(Y))

void iounmap(volatile void __iomem *addr);



/* Create a virtual mapping cookie for an IO port range */

void __iomem *ioport_map(unsigned long port, unsigned int nr);

void ioport_unmap(void __iomem *);

arch/sparc/kernel/ioport.c

+2 −2
Original line number Diff line number Diff line
@@ -122,12 +122,12 @@ static void xres_free(struct xresource *xrp) { 
 *

 * Bus type is always zero on IIep.

 */

void __iomem *ioremap(unsigned long offset, unsigned long size)

void __iomem *ioremap(phys_addr_t offset, size_t size)

{

	char name[14];



	sprintf(name, "phys_%08x", (u32)offset);

	return _sparc_alloc_io(0, offset, size, name);

	return _sparc_alloc_io(0, (unsigned long)offset, size, name);

}

EXPORT_SYMBOL(ioremap);

include/asm-generic/io.h

+9 −9
Original line number Diff line number Diff line
@@ -852,7 +852,16 @@ static inline void __iomem *__ioremap(phys_addr_t offset, size_t size, 
}

#endif



#ifndef iounmap

#define iounmap iounmap



static inline void iounmap(void __iomem *addr)

{

}

#endif

#endif /* CONFIG_MMU */

#ifndef ioremap_nocache

void __iomem *ioremap(phys_addr_t phys_addr, size_t size);

#define ioremap_nocache ioremap_nocache

static inline void __iomem *ioremap_nocache(phys_addr_t offset, size_t size)

{
@@ -884,15 +893,6 @@ static inline void __iomem *ioremap_wt(phys_addr_t offset, size_t size) 
}

#endif



#ifndef iounmap

#define iounmap iounmap



static inline void iounmap(void __iomem *addr)

{

}

#endif

#endif /* CONFIG_MMU */



#ifdef CONFIG_HAS_IOPORT_MAP

#ifndef CONFIG_GENERIC_IOMAP

#ifndef ioport_map