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Diffstat (limited to 'include/asm-powerpc/page_64.h')
| -rw-r--r-- | include/asm-powerpc/page_64.h | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/include/asm-powerpc/page_64.h b/include/asm-powerpc/page_64.h deleted file mode 100644 index 043bfdf..0000000 --- a/include/asm-powerpc/page_64.h +++ /dev/null @@ -1,185 +0,0 @@ -#ifndef _ASM_POWERPC_PAGE_64_H -#define _ASM_POWERPC_PAGE_64_H - -/* - * Copyright (C) 2001 PPC64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -/* - * We always define HW_PAGE_SHIFT to 12 as use of 64K pages remains Linux - * specific, every notion of page number shared with the firmware, TCEs, - * iommu, etc... still uses a page size of 4K. - */ -#define HW_PAGE_SHIFT 12 -#define HW_PAGE_SIZE (ASM_CONST(1) << HW_PAGE_SHIFT) -#define HW_PAGE_MASK (~(HW_PAGE_SIZE-1)) - -/* - * PAGE_FACTOR is the number of bits factor between PAGE_SHIFT and - * HW_PAGE_SHIFT, that is 4K pages. - */ -#define PAGE_FACTOR (PAGE_SHIFT - HW_PAGE_SHIFT) - -/* Segment size; normal 256M segments */ -#define SID_SHIFT 28 -#define SID_MASK ASM_CONST(0xfffffffff) -#define ESID_MASK 0xfffffffff0000000UL -#define GET_ESID(x) (((x) >> SID_SHIFT) & SID_MASK) - -/* 1T segments */ -#define SID_SHIFT_1T 40 -#define SID_MASK_1T 0xffffffUL -#define ESID_MASK_1T 0xffffff0000000000UL -#define GET_ESID_1T(x) (((x) >> SID_SHIFT_1T) & SID_MASK_1T) - -#ifndef __ASSEMBLY__ -#include <asm/cache.h> - -typedef unsigned long pte_basic_t; - -static __inline__ void clear_page(void *addr) -{ - unsigned long lines, line_size; - - line_size = ppc64_caches.dline_size; - lines = ppc64_caches.dlines_per_page; - - __asm__ __volatile__( - "mtctr %1 # clear_page\n\ -1: dcbz 0,%0\n\ - add %0,%0,%3\n\ - bdnz+ 1b" - : "=r" (addr) - : "r" (lines), "0" (addr), "r" (line_size) - : "ctr", "memory"); -} - -extern void copy_4K_page(void *to, void *from); - -#ifdef CONFIG_PPC_64K_PAGES -static inline void copy_page(void *to, void *from) -{ - unsigned int i; - for (i=0; i < (1 << (PAGE_SHIFT - 12)); i++) { - copy_4K_page(to, from); - to += 4096; - from += 4096; - } -} -#else /* CONFIG_PPC_64K_PAGES */ -static inline void copy_page(void *to, void *from) -{ - copy_4K_page(to, from); -} -#endif /* CONFIG_PPC_64K_PAGES */ - -/* Log 2 of page table size */ -extern u64 ppc64_pft_size; - -/* Large pages size */ -#ifdef CONFIG_HUGETLB_PAGE -extern unsigned int HPAGE_SHIFT; -#else -#define HPAGE_SHIFT PAGE_SHIFT -#endif -#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#define HUGE_MAX_HSTATE 3 - -#endif /* __ASSEMBLY__ */ - -#ifdef CONFIG_PPC_MM_SLICES - -#define SLICE_LOW_SHIFT 28 -#define SLICE_HIGH_SHIFT 40 - -#define SLICE_LOW_TOP (0x100000000ul) -#define SLICE_NUM_LOW (SLICE_LOW_TOP >> SLICE_LOW_SHIFT) -#define SLICE_NUM_HIGH (PGTABLE_RANGE >> SLICE_HIGH_SHIFT) - -#define GET_LOW_SLICE_INDEX(addr) ((addr) >> SLICE_LOW_SHIFT) -#define GET_HIGH_SLICE_INDEX(addr) ((addr) >> SLICE_HIGH_SHIFT) - -#ifndef __ASSEMBLY__ - -struct slice_mask { - u16 low_slices; - u16 high_slices; -}; - -struct mm_struct; - -extern unsigned long slice_get_unmapped_area(unsigned long addr, - unsigned long len, - unsigned long flags, - unsigned int psize, - int topdown, - int use_cache); - -extern unsigned int get_slice_psize(struct mm_struct *mm, - unsigned long addr); - -extern void slice_init_context(struct mm_struct *mm, unsigned int psize); -extern void slice_set_user_psize(struct mm_struct *mm, unsigned int psize); -extern void slice_set_range_psize(struct mm_struct *mm, unsigned long start, - unsigned long len, unsigned int psize); - -#define slice_mm_new_context(mm) ((mm)->context.id == 0) - -#endif /* __ASSEMBLY__ */ -#else -#define slice_init() -#define get_slice_psize(mm, addr) ((mm)->context.user_psize) -#define slice_set_user_psize(mm, psize) \ -do { \ - (mm)->context.user_psize = (psize); \ - (mm)->context.sllp = SLB_VSID_USER | mmu_psize_defs[(psize)].sllp; \ -} while (0) -#define slice_set_range_psize(mm, start, len, psize) \ - slice_set_user_psize((mm), (psize)) -#define slice_mm_new_context(mm) 1 -#endif /* CONFIG_PPC_MM_SLICES */ - -#ifdef CONFIG_HUGETLB_PAGE - -#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA - -#endif /* !CONFIG_HUGETLB_PAGE */ - -#ifdef MODULE -#define __page_aligned __attribute__((__aligned__(PAGE_SIZE))) -#else -#define __page_aligned \ - __attribute__((__aligned__(PAGE_SIZE), \ - __section__(".data.page_aligned"))) -#endif - -#define VM_DATA_DEFAULT_FLAGS \ - (test_thread_flag(TIF_32BIT) ? \ - VM_DATA_DEFAULT_FLAGS32 : VM_DATA_DEFAULT_FLAGS64) - -/* - * This is the default if a program doesn't have a PT_GNU_STACK - * program header entry. The PPC64 ELF ABI has a non executable stack - * stack by default, so in the absense of a PT_GNU_STACK program header - * we turn execute permission off. - */ -#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#define VM_STACK_DEFAULT_FLAGS \ - (test_thread_flag(TIF_32BIT) ? \ - VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64) - -#include <asm-generic/page.h> - -#endif /* _ASM_POWERPC_PAGE_64_H */ |