diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/hexagon/include/asm/fixmap.h')
-rw-r--r-- | ANDROID_3.4.5/arch/hexagon/include/asm/fixmap.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/ANDROID_3.4.5/arch/hexagon/include/asm/fixmap.h b/ANDROID_3.4.5/arch/hexagon/include/asm/fixmap.h deleted file mode 100644 index b27f4941..00000000 --- a/ANDROID_3.4.5/arch/hexagon/include/asm/fixmap.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * Fixmap support for Hexagon - enough to support highmem features - * - * 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_FIXMAP_H -#define _ASM_FIXMAP_H - -/* - * A lot of the fixmap info is already in mem-layout.h - */ -#include <asm/mem-layout.h> - -/* - * Full fixmap support involves set_fixmap() functions, but - * these may not be needed if all we're after is an area for - * highmem kernel mappings. - */ -#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) -#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) - -extern void __this_fixmap_does_not_exist(void); - -/** - * fix_to_virt -- "index to address" translation. - * - * If anyone tries to use the idx directly without translation, - * we catch the bug with a NULL-deference kernel oops. Illegal - * ranges of incoming indices are caught too. - */ -static inline unsigned long fix_to_virt(const unsigned int idx) -{ - /* - * This branch gets completely eliminated after inlining, - * except when someone tries to use fixaddr indices in an - * illegal way. (such as mixing up address types or using - * out-of-range indices). - * - * If it doesn't get removed, the linker will complain - * loudly with a reasonably clear error message.. - */ - if (idx >= __end_of_fixed_addresses) - __this_fixmap_does_not_exist(); - - return __fix_to_virt(idx); -} - -static inline unsigned long virt_to_fix(const unsigned long vaddr) -{ - BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); - return __virt_to_fix(vaddr); -} - -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), \ - (vaddr)), (vaddr)), (vaddr)) - -#endif |