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5cd16ee934
Merge asm-ppc/page.h and asm-ppc64/page.h into asm-powerpc/page.h, asm-powerpc/page_32.h and asm-powerpc/page_64.h Built for PPC (common_defconfig), with ARCH=powerpc, mostly built with ARCH=ppc (other things break the build). Built and booted on P5 LPAR for PPC64 with ARCH=ppc/powerpc (pseries_defconfig). Mostly built for iSeries powerpc. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
39 lines
991 B
C
39 lines
991 B
C
#ifndef _ASM_POWERPC_PAGE_32_H
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#define _ASM_POWERPC_PAGE_32_H
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#define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32
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#ifndef __ASSEMBLY__
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/*
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* The basic type of a PTE - 64 bits for those CPUs with > 32 bit
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* physical addressing. For now this just the IBM PPC440.
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*/
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#ifdef CONFIG_PTE_64BIT
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typedef unsigned long long pte_basic_t;
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#define PTE_SHIFT (PAGE_SHIFT - 3) /* 512 ptes per page */
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#define PTE_FMT "%16Lx"
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#else
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typedef unsigned long pte_basic_t;
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#define PTE_SHIFT (PAGE_SHIFT - 2) /* 1024 ptes per page */
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#define PTE_FMT "%.8lx"
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#endif
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struct page;
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extern void clear_pages(void *page, int order);
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static inline void clear_page(void *page) { clear_pages(page, 0); }
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extern void copy_page(void *to, void *from);
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/* Pure 2^n version of get_order */
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extern __inline__ int get_order(unsigned long size)
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{
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int lz;
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size = (size-1) >> PAGE_SHIFT;
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asm ("cntlzw %0,%1" : "=r" (lz) : "r" (size));
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return 32 - lz;
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}
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_POWERPC_PAGE_32_H */
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