diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/include/asm/pgtable.h')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/include/asm/pgtable.h | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/pgtable.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/pgtable.h deleted file mode 100644 index ffb30a9ecf..0000000000 --- a/target/linux/ubicom32/files/arch/ubicom32/include/asm/pgtable.h +++ /dev/null @@ -1,128 +0,0 @@ -/* - * arch/ubicom32/include/asm/pgtable.h - * Ubicom32 pseudo page table definitions and operations. - * - * (C) Copyright 2009, Ubicom, Inc. - * Copyright (C) 2004 Microtronix Datacom Ltd - * - * This file is part of the Ubicom32 Linux Kernel Port. - * - * The Ubicom32 Linux Kernel Port 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. - * - * The Ubicom32 Linux Kernel Port is distributed in the hope that it - * will be useful, but WITHOUT ANY WARRANTY; without even the implied - * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with the Ubicom32 Linux Kernel Port. If not, - * see <http://www.gnu.org/licenses/>. - * - * Ubicom32 implementation derived from (with many thanks): - * arch/m68knommu - * arch/blackfin - * arch/parisc - * and various works, Alpha, ix86, M68K, Sparc, ...et al - */ -#ifndef _ASM_UBICOM32_PGTABLE_H -#define _ASM_UBICOM32_PGTABLE_H - -#include <asm-generic/4level-fixup.h> - -//vic - this bit copied from m68knommu version -#include <asm/setup.h> -#include <asm/io.h> -#include <linux/sched.h> - -typedef pte_t *pte_addr_t; - -#define pgd_present(pgd) (1) /* pages are always present on NO_MM */ -#define pgd_none(pgd) (0) -#define pgd_bad(pgd) (0) -#define pgd_clear(pgdp) -#define kern_addr_valid(addr) (1) -#define pmd_offset(a, b) ((void *)0) - -#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */ -//vic - this bit copied from m68knommu version - -extern void paging_init(void); -#define swapper_pg_dir ((pgd_t *) 0) - -#define __swp_type(x) (0) -#define __swp_offset(x) (0) -#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -/* - * pgprot_noncached() is only for infiniband pci support, and a real - * implementation for RAM would be more complicated. - */ -#define pgprot_noncached(prot) (prot) - -static inline int pte_file(pte_t pte) { return 0; } - -/* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. - */ -#define ZERO_PAGE(vaddr) (virt_to_page(0)) - -extern unsigned int kobjsize(const void *objp); -extern int is_in_rom(unsigned long); - -/* - * No page table caches to initialise - */ -#define pgtable_cache_init() do { } while (0) - -#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ - remap_pfn_range(vma, vaddr, pfn, size, prot) - -extern inline void flush_cache_mm(struct mm_struct *mm) -{ -} - -extern inline void flush_cache_range(struct mm_struct *mm, - unsigned long start, - unsigned long end) -{ -} - -/* Push the page at kernel virtual address and clear the icache */ -extern inline void flush_page_to_ram (unsigned long address) -{ -} - -/* Push n pages at kernel virtual address and clear the icache */ -extern inline void flush_pages_to_ram (unsigned long address, int n) -{ -} - -/* - * All 32bit addresses are effectively valid for vmalloc... - * Sort of meaningless for non-VM targets. - */ -#define VMALLOC_START 0 -#define VMALLOC_END 0xffffffff - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32) -#include <asm-generic/pgtable.h> -#else -#define arch_enter_lazy_mmu_mode() do {} while (0) -#define arch_leave_lazy_mmu_mode() do {} while (0) -#define arch_flush_lazy_mmu_mode() do {} while (0) -#define arch_enter_lazy_cpu_mode() do {} while (0) -#define arch_leave_lazy_cpu_mode() do {} while (0) -#define arch_flush_lazy_cpu_mode() do {} while (0) -#endif - -#endif /* _ASM_UBICOM32_PGTABLE_H */ |