diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/hexagon/include/asm/page.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/hexagon/include/asm/page.h | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/ANDROID_3.4.5/arch/hexagon/include/asm/page.h b/ANDROID_3.4.5/arch/hexagon/include/asm/page.h deleted file mode 100644 index edd97626..00000000 --- a/ANDROID_3.4.5/arch/hexagon/include/asm/page.h +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Page management definitions for the Hexagon architecture - * - * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#ifndef _ASM_PAGE_H -#define _ASM_PAGE_H - -#include <linux/const.h> - -/* This is probably not the most graceful way to handle this. */ - -#ifdef CONFIG_PAGE_SIZE_4KB -#define PAGE_SHIFT 12 -#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_4KB -#endif - -#ifdef CONFIG_PAGE_SIZE_16KB -#define PAGE_SHIFT 14 -#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_16KB -#endif - -#ifdef CONFIG_PAGE_SIZE_64KB -#define PAGE_SHIFT 16 -#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_64KB -#endif - -#ifdef CONFIG_PAGE_SIZE_256KB -#define PAGE_SHIFT 18 -#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_256KB -#endif - -#ifdef CONFIG_PAGE_SIZE_1MB -#define PAGE_SHIFT 20 -#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_1MB -#endif - -/* - * These should be defined in hugetlb.h, but apparently not. - * "Huge" for us should be 4MB or 16MB, which are both represented - * in L1 PTE's. Right now, it's set up for 4MB. - */ -#ifdef CONFIG_HUGETLB_PAGE -#define HPAGE_SHIFT 22 -#define HPAGE_SIZE (1UL << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE-1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) -#define HVM_HUGEPAGE_SIZE 0x5 -#endif - -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -/* - * This is for PFN_DOWN, which mm.h needs. Seems the right place to pull it in. - */ -#include <linux/pfn.h> - -/* - * We implement a two-level architecture-specific page table structure. - * Null intermediate page table level (pmd, pud) definitions will come from - * asm-generic/pagetable-nopmd.h and asm-generic/pagetable-nopud.h - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; -typedef struct page *pgtable_t; - -#define pte_val(x) ((x).pte) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) -#define __pte(x) ((pte_t) { (x) }) -#define __pgd(x) ((pgd_t) { (x) }) -#define __pgprot(x) ((pgprot_t) { (x) }) - -/* - * We need a __pa and a __va routine for kernel space. - * MIPS says they're only used during mem_init. - * also, check if we need a PHYS_OFFSET. - */ -#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET)) - -/* The "page frame" descriptor is defined in linux/mm.h */ -struct page; - -/* Returns page frame descriptor for virtual address. */ -#define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(__pa(kaddr))) - -/* Default vm area behavior is non-executable. */ -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -/* Need to not use a define for linesize; may move this to another file. */ -static inline void clear_page(void *page) -{ - /* This can only be done on pages with L1 WB cache */ - asm volatile( - " loop0(1f,%1);\n" - "1: { dczeroa(%0);\n" - " %0 = add(%0,#32); }:endloop0\n" - : "+r" (page) - : "r" (PAGE_SIZE/32) - : "lc0", "sa0", "memory" - ); -} - -#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) - -/* - * Under assumption that kernel always "sees" user map... - */ -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -/* - * page_to_phys - convert page to physical address - * @page - pointer to page entry in mem_map - */ -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) - -/* - * For port to Hexagon Virtual Machine, MAYBE we check for attempts - * to reference reserved HVM space, but in any case, the VM will be - * protected. - */ -#define kern_addr_valid(addr) (1) - -#include <asm-generic/memory_model.h> -/* XXX Todo: implement assembly-optimized version of getorder. */ -#include <asm-generic/getorder.h> - -#endif /* ifdef __ASSEMBLY__ */ -#endif /* ifdef __KERNEL__ */ - -#endif |