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ia64: split off early_ioremap() declarations into asm/early_ioremap.h 

Unlike x86, arm64 and ARM, ia64 does not declare its implementations
of early_ioremap/early_iounmap/early_memremap/early_memunmap in a header
file called <asm/early_ioremap.h>

This complicates the use of these functions in generic code, since the
header cannot be included directly, and we have to rely on transitive
includes, which is fragile.

So create a <asm/early_ioremap.h> for ia64, and move the existing
definitions into it.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Ard Biesheuvel 2016-01-12 14:22:45 +01:00 committed by Tony Luck
parent 67990608c8
commit 8092677085
2 changed files with 11 additions and 4 deletions
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10
arch/ia64/include/asm/early_ioremap.h Normal file
View File

@ -0,0 +1,10 @@
#ifndef _ASM_IA64_EARLY_IOREMAP_H
#define _ASM_IA64_EARLY_IOREMAP_H
extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size);
#define early_memremap(phys_addr, size) early_ioremap(phys_addr, size)
extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
#define early_memunmap(addr, size) early_iounmap(addr, size)
#endif

5
arch/ia64/include/asm/io.h
View File

@ -20,6 +20,7 @@
*/
#include <asm/unaligned.h>
#include <asm/early_ioremap.h>
/* We don't use IO slowdowns on the ia64, but.. */
#define __SLOW_DOWN_IO do { } while (0)
@ -427,10 +428,6 @@ __writeq (unsigned long val, volatile void __iomem *addr)
extern void __iomem * ioremap(unsigned long offset, unsigned long size);
extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size);
extern void iounmap (volatile void __iomem *addr);
extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size);
#define early_memremap(phys_addr, size) early_ioremap(phys_addr, size)
extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
#define early_memunmap(addr, size) early_iounmap(addr, size)
static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
{
return ioremap(phys_addr, size);