diff options
Diffstat (limited to 'arch/metag/include/asm/fixmap.h')
-rw-r--r-- | arch/metag/include/asm/fixmap.h | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/metag/include/asm/fixmap.h b/arch/metag/include/asm/fixmap.h deleted file mode 100644 index af621b0..0000000 --- a/arch/metag/include/asm/fixmap.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * fixmap.h: compile-time virtual memory allocation - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1998 Ingo Molnar - * - * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999 - */ - -#ifndef _ASM_FIXMAP_H -#define _ASM_FIXMAP_H - -#include <asm/pgtable.h> -#ifdef CONFIG_HIGHMEM -#include <linux/threads.h> -#include <asm/kmap_types.h> -#endif - -/* - * Here we define all the compile-time 'special' virtual - * addresses. The point is to have a constant address at - * compile time, but to set the physical address only - * in the boot process. We allocate these special addresses - * from the end of the consistent memory region backwards. - * Also this lets us do fail-safe vmalloc(), we - * can guarantee that these special addresses and - * vmalloc()-ed addresses never overlap. - * - * these 'compile-time allocated' memory buffers are - * fixed-size 4k pages. (or larger if used with an increment - * higher than 1) use fixmap_set(idx,phys) to associate - * physical memory with fixmap indices. - * - * TLB entries of such buffers will not be flushed across - * task switches. - */ -enum fixed_addresses { -#define FIX_N_COLOURS 8 -#ifdef CONFIG_HIGHMEM - /* reserved pte's for temporary kernel mappings */ - FIX_KMAP_BEGIN, - FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, -#endif - __end_of_fixed_addresses -}; - -#define FIXADDR_TOP (CONSISTENT_START - PAGE_SIZE) -#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) -#define FIXADDR_START ((FIXADDR_TOP - FIXADDR_SIZE) & PMD_MASK) - -#include <asm-generic/fixmap.h> - -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel( \ - pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), \ - (vaddr) \ - ) - -/* - * Called from pgtable_init() - */ -extern void fixrange_init(unsigned long start, unsigned long end, - pgd_t *pgd_base); - - -#endif |