diff options
Diffstat (limited to 'target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_page.h')
| -rw-r--r-- | target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_page.h | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_page.h b/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_page.h deleted file mode 100644 index 1421f4943..000000000 --- a/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_page.h +++ /dev/null @@ -1,186 +0,0 @@ -/* - * linux/include/asm-m68k/cf_page.h - * - * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved. - * Based on linux/include/asm-m68k/page.h - * - * 10/09/08 JKM: split Coldfire pieces into separate file - */ -#ifndef __CF_PAGE__ -#define __CF_PAGE__ - -#include <linux/const.h> -#include <asm/setup.h> -#include <asm/page_offset.h> - -/* Virtual base page location */ -#define PAGE_OFFSET (PAGE_OFFSET_RAW) - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT (13) /* 8K pages */ -#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - -#define THREAD_SIZE PAGE_SIZE - -#ifndef __ASSEMBLY__ -#include <linux/compiler.h> -#include <asm/module.h> - -#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) -#define free_user_page(page, addr) free_page(addr) - -#define clear_page(page) memset((page), 0, PAGE_SIZE) -#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) - -#define clear_user_page(addr, vaddr, page) \ - do { clear_page(addr); \ - flush_dcache_page(page); \ - } while (0) - -#define copy_user_page(to, from, vaddr, page) \ - do { copy_page(to, from); \ - flush_dcache_page(page); \ - } while (0) - -/* - * These are used to make use of C type-checking.. - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pmd[16]; } pmd_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 pmd_val(x) ((&x)->pmd[0]) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -/* to align the pointer to the (next) page boundary */ -/*Defined in linux/mm.h*/ -/*#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)*/ - -extern unsigned long m68k_memoffset; - -#define WANT_PAGE_VIRTUAL - -extern unsigned long cf_dma_base; -extern unsigned long cf_dma_end; - -/* - * Convert a virt to a phys - */ -static inline unsigned long ___pa(void *vaddr) -{ -#if CONFIG_SDRAM_BASE != PAGE_OFFSET - return (((unsigned long)vaddr & 0x0fffffff) + CONFIG_SDRAM_BASE); -#else - if ((unsigned long)vaddr >= CONFIG_DMA_BASE && - (unsigned long)vaddr < (CONFIG_DMA_BASE + CONFIG_DMA_SIZE)) { - /* address is in carved out DMA range */ - return ((unsigned long)vaddr - CONFIG_DMA_BASE) + CONFIG_SDRAM_BASE; - } - else if ((unsigned long)vaddr >= PAGE_OFFSET && - (unsigned long)vaddr < (PAGE_OFFSET + CONFIG_SDRAM_SIZE)) { - /* normal mapping */ - return ((unsigned long)vaddr - PAGE_OFFSET) + CONFIG_SDRAM_BASE; - } - - return (unsigned long)vaddr; -#endif -} -#define __pa(vaddr) ___pa((void *)(vaddr)) - -/* - * Convert a phys to a virt - */ -static inline void *__va(unsigned long paddr) -{ -#if CONFIG_SDRAM_BASE != PAGE_OFFSET - return (void *)((paddr & 0x0fffffff) + PAGE_OFFSET); -#else - if (paddr >= cf_dma_base && paddr <= cf_dma_end) { - /* mapped address for DMA */ - return (void *)((paddr - CONFIG_SDRAM_BASE) + CONFIG_DMA_BASE); - } - else if (paddr >= cf_dma_end && - paddr < (CONFIG_SDRAM_BASE + CONFIG_SDRAM_SIZE)) { - /* normal mapping */ - return (void *)((paddr - CONFIG_SDRAM_BASE) + PAGE_OFFSET); - } - return (void *)paddr; -#endif -} - -/* - * NOTE: virtual isn't really correct, actually it should be the offset into the - * memory node, but we have no highmem, so that works for now. - * - * TODO: implement (fast) pfn<->pgdat_idx conversion functions, this makes lots - * of the shifts unnecessary. - * - * PFNs are used to map physical pages. So PFN[0] maps to the base phys addr. - */ -#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) -#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) - -extern int m68k_virt_to_node_shift; - -#ifdef CONFIG_SINGLE_MEMORY_CHUNK -#define __virt_to_node(addr) (&pg_data_map[0]) -#else -extern struct pglist_data *pg_data_table[]; - -static inline __attribute_const__ int __virt_to_node_shift(void) -{ - return m68k_virt_to_node_shift; -} - -#define __virt_to_node(addr) (pg_data_table[(unsigned long)(addr) >> __virt_to_node_shift()]) -#endif /* !CONFIG_SINGLE_MEMORY_CHUNK */ - -#define virt_to_page(addr) ({ \ - pfn_to_page(virt_to_pfn(addr)); \ -}) -#define page_to_virt(page) ({ \ - pfn_to_virt(page_to_pfn(page)); \ -}) - -#define pfn_to_page(pfn) ({ \ - unsigned long __pfn = (pfn); \ - struct pglist_data *pgdat; \ - pgdat = __virt_to_node((unsigned long)pfn_to_virt(__pfn)); \ - pgdat->node_mem_map + (__pfn - pgdat->node_start_pfn); \ -}) -#define page_to_pfn(_page) ({ \ - struct page *__p = (_page); \ - struct pglist_data *pgdat; \ - pgdat = &pg_data_map[page_to_nid(__p)]; \ - ((__p) - pgdat->node_mem_map) + pgdat->node_start_pfn; \ -}) - -#define virt_addr_valid(kaddr) ( ((void *)(kaddr) >= (void *)PAGE_OFFSET && \ - (void *)(kaddr) < high_memory) || \ - ((void *)(kaddr) >= (void*)CONFIG_DMA_BASE && \ - (void *)(kaddr) < (void*)(CONFIG_DMA_BASE+CONFIG_DMA_SIZE))) - -#define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn)) - -#endif /* __ASSEMBLY__ */ - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include <asm-generic/getorder.h> - -#ifdef CONFIG_VDSO -#define __HAVE_ARCH_GATE_AREA -#endif - -#endif /* __CF_PAGE__ */ |