[POWERPC] Remove ioremap64 and fixup_bigphys_addr

In order to suppose platforms with devices above 4Gb on 32 bits platforms
with a >32 bits physical address space, we used to have a special ioremap64
along with a fixup routine fixup_bigphys_addr.

This shouldn't be necessary anymore as struct resource now supports 64 bits
addresses even on 32 bits archs. This patch enables that option when
CONFIG_PHYS_64BIT is set and removes ioremap64 and fixup_bigphys_addr.

This is a preliminary work for the upcoming merge of 32 and 64 bits io.h

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt 2006-11-11 17:25:19 +11:00 committed by Paul Mackerras
parent 165785e5c0
commit 3d1ea8e8cb
3 changed files with 1 additions and 25 deletions
arch/powerpc

View File

@ -247,6 +247,7 @@ config PTE_64BIT
config PHYS_64BIT
bool 'Large physical address support' if E500
depends on 44x || E500
select RESOURCES_64BIT
default y if 44x
---help---
This option enables kernel support for larger than 32-bit physical

View File

@ -141,28 +141,11 @@ void pte_free(struct page *ptepage)
__free_page(ptepage);
}
#ifndef CONFIG_PHYS_64BIT
void __iomem *
ioremap(phys_addr_t addr, unsigned long size)
{
return __ioremap(addr, size, _PAGE_NO_CACHE);
}
#else /* CONFIG_PHYS_64BIT */
void __iomem *
ioremap64(unsigned long long addr, unsigned long size)
{
return __ioremap(addr, size, _PAGE_NO_CACHE);
}
EXPORT_SYMBOL(ioremap64);
void __iomem *
ioremap(phys_addr_t addr, unsigned long size)
{
phys_addr_t addr64 = fixup_bigphys_addr(addr, size);
return ioremap64(addr64, size);
}
#endif /* CONFIG_PHYS_64BIT */
EXPORT_SYMBOL(ioremap);
void __iomem *

View File

@ -21,11 +21,3 @@ void mpc85xx_restart(char *cmd)
local_irq_disable();
abort();
}
/* For now this is a pass through */
phys_addr_t fixup_bigphys_addr(phys_addr_t addr, phys_addr_t size)
{
return addr;
};
EXPORT_SYMBOL(fixup_bigphys_addr);