Subject: powerpc: remove ioremap64 and fixup_bigphys_addr From: Benjamin Herrenschmidt 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 Signed-off-by: Arnd Bergmann --- arch/powerpc/Kconfig | 1 + arch/powerpc/mm/pgtable_32.c | 17 ----------------- arch/powerpc/platforms/85xx/misc.c | 8 -------- 3 files changed, 1 insertion(+), 25 deletions(-) Index: linux-2.6/arch/powerpc/mm/pgtable_32.c =================================================================== --- linux-2.6.orig/arch/powerpc/mm/pgtable_32.c +++ linux-2.6/arch/powerpc/mm/pgtable_32.c @@ -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 * Index: linux-2.6/arch/powerpc/platforms/85xx/misc.c =================================================================== --- linux-2.6.orig/arch/powerpc/platforms/85xx/misc.c +++ linux-2.6/arch/powerpc/platforms/85xx/misc.c @@ -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); Index: linux-2.6/arch/powerpc/Kconfig =================================================================== --- linux-2.6.orig/arch/powerpc/Kconfig +++ linux-2.6/arch/powerpc/Kconfig @@ -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