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Diffstat (limited to 'include/asm-powerpc/page_64.h')
| -rw-r--r-- | include/asm-powerpc/page_64.h | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/include/asm-powerpc/page_64.h b/include/asm-powerpc/page_64.h deleted file mode 100644 index 3fb061bab9e..00000000000 --- a/include/asm-powerpc/page_64.h +++ /dev/null @@ -1,175 +0,0 @@ -#ifndef _ASM_POWERPC_PAGE_64_H -#define _ASM_POWERPC_PAGE_64_H -#ifdef __KERNEL__ - -/* - * 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 */ -#define SID_SHIFT 28 -#define SID_MASK 0xfffffffffUL -#define ESID_MASK 0xfffffffff0000000UL -#define GET_ESID(x) (((x) >> SID_SHIFT) & SID_MASK) - -#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) - -#endif /* __ASSEMBLY__ */ - -#ifdef CONFIG_HUGETLB_PAGE - -#define HTLB_AREA_SHIFT 40 -#define HTLB_AREA_SIZE (1UL << HTLB_AREA_SHIFT) -#define GET_HTLB_AREA(x) ((x) >> HTLB_AREA_SHIFT) - -#define LOW_ESID_MASK(addr, len) \ - (((1U << (GET_ESID(min((addr)+(len)-1, 0x100000000UL))+1)) \ - - (1U << GET_ESID(min((addr), 0x100000000UL)))) & 0xffff) -#define HTLB_AREA_MASK(addr, len) (((1U << (GET_HTLB_AREA(addr+len-1)+1)) \ - - (1U << GET_HTLB_AREA(addr))) & 0xffff) - -#define ARCH_HAS_HUGEPAGE_ONLY_RANGE -#define ARCH_HAS_PREPARE_HUGEPAGE_RANGE -#define ARCH_HAS_SETCLEAR_HUGE_PTE - -#define touches_hugepage_low_range(mm, addr, len) \ - (((addr) < 0x100000000UL) \ - && (LOW_ESID_MASK((addr), (len)) & (mm)->context.low_htlb_areas)) -#define touches_hugepage_high_range(mm, addr, len) \ - ((((addr) + (len)) > 0x100000000UL) \ - && (HTLB_AREA_MASK((addr), (len)) & (mm)->context.high_htlb_areas)) - -#define __within_hugepage_low_range(addr, len, segmask) \ - ( (((addr)+(len)) <= 0x100000000UL) \ - && ((LOW_ESID_MASK((addr), (len)) | (segmask)) == (segmask))) -#define within_hugepage_low_range(addr, len) \ - __within_hugepage_low_range((addr), (len), \ - current->mm->context.low_htlb_areas) -#define __within_hugepage_high_range(addr, len, zonemask) \ - ( ((addr) >= 0x100000000UL) \ - && ((HTLB_AREA_MASK((addr), (len)) | (zonemask)) == (zonemask))) -#define within_hugepage_high_range(addr, len) \ - __within_hugepage_high_range((addr), (len), \ - current->mm->context.high_htlb_areas) - -#define is_hugepage_only_range(mm, addr, len) \ - (touches_hugepage_high_range((mm), (addr), (len)) || \ - touches_hugepage_low_range((mm), (addr), (len))) -#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA - -#define in_hugepage_area(context, addr) \ - (cpu_has_feature(CPU_FTR_16M_PAGE) && \ - ( ( (addr) >= 0x100000000UL) \ - ? ((1 << GET_HTLB_AREA(addr)) & (context).high_htlb_areas) \ - : ((1 << GET_ESID(addr)) & (context).low_htlb_areas) ) ) - -#else /* !CONFIG_HUGETLB_PAGE */ - -#define in_hugepage_area(mm, addr) 0 - -#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 /* __KERNEL__ */ -#endif /* _ASM_POWERPC_PAGE_64_H */ |