diff options
Diffstat (limited to 'arch/metag/include/asm/page.h')
| -rw-r--r-- | arch/metag/include/asm/page.h | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/arch/metag/include/asm/page.h b/arch/metag/include/asm/page.h deleted file mode 100644 index 9e994d7..0000000 --- a/arch/metag/include/asm/page.h +++ /dev/null @@ -1,129 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_PAGE_H -#define _METAG_PAGE_H - -#include <linux/const.h> - -#include <asm/metag_mem.h> - -/* PAGE_SHIFT determines the page size */ -#if defined(CONFIG_PAGE_SIZE_4K) -#define PAGE_SHIFT 12 -#elif defined(CONFIG_PAGE_SIZE_8K) -#define PAGE_SHIFT 13 -#elif defined(CONFIG_PAGE_SIZE_16K) -#define PAGE_SHIFT 14 -#endif - -#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_8K) -# define HPAGE_SHIFT 13 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_16K) -# define HPAGE_SHIFT 14 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_32K) -# define HPAGE_SHIFT 15 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -# define HPAGE_SHIFT 16 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_128K) -# define HPAGE_SHIFT 17 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K) -# define HPAGE_SHIFT 18 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -# define HPAGE_SHIFT 19 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1M) -# define HPAGE_SHIFT 20 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_2M) -# define HPAGE_SHIFT 21 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4M) -# define HPAGE_SHIFT 22 -#endif - -#ifdef CONFIG_HUGETLB_PAGE -# define HPAGE_SIZE (1UL << HPAGE_SHIFT) -# define HPAGE_MASK (~(HPAGE_SIZE-1)) -# define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) -/* - * We define our own hugetlb_get_unmapped_area so we don't corrupt 2nd level - * page tables with normal pages in them. - */ -# define HUGEPT_SHIFT (22) -# define HUGEPT_ALIGN (1 << HUGEPT_SHIFT) -# define HUGEPT_MASK (HUGEPT_ALIGN - 1) -# define ALIGN_HUGEPT(x) ALIGN(x, HUGEPT_ALIGN) -# define HAVE_ARCH_HUGETLB_UNMAPPED_AREA -#endif - -#ifndef __ASSEMBLY__ - -/* On the Meta, we would like to know if the address (heap) we have is - * in local or global space. - */ -#define is_global_space(addr) ((addr) > 0x7fffffff) -#define is_local_space(addr) (!is_global_space(addr)) - -extern void clear_page(void *to); -extern void copy_page(void *to, void *from); - -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -/* - * These are used to make use of C type-checking.. - */ -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) }) - -/* The kernel must now ALWAYS live at either 0xC0000000 or 0x40000000 - that - * being either global or local space. - */ -#define PAGE_OFFSET (CONFIG_PAGE_OFFSET) - -#if PAGE_OFFSET >= LINGLOBAL_BASE -#define META_MEMORY_BASE LINGLOBAL_BASE -#define META_MEMORY_LIMIT LINGLOBAL_LIMIT -#else -#define META_MEMORY_BASE LINLOCAL_BASE -#define META_MEMORY_LIMIT LINLOCAL_LIMIT -#endif - -/* Offset between physical and virtual mapping of kernel memory. */ -extern unsigned int meta_memoffset; - -#define __pa(x) ((unsigned long)(((unsigned long)(x)) - meta_memoffset)) -#define __va(x) ((void *)((unsigned long)(((unsigned long)(x)) + meta_memoffset))) - -extern unsigned long pfn_base; -#define ARCH_PFN_OFFSET (pfn_base) -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#ifdef CONFIG_FLATMEM -extern unsigned long max_pfn; -extern unsigned long min_low_pfn; -#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_pfn) -#endif - -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include <asm-generic/memory_model.h> -#include <asm-generic/getorder.h> - -#endif /* __ASSMEBLY__ */ - -#endif /* _METAG_PAGE_H */ |
