| Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation, version 2. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | #ifndef _ASM_TILE_UNALIGNED_H |
| 16 | #define _ASM_TILE_UNALIGNED_H |
| 17 | |
| Chris Metcalf | ba02f0e | 2013-08-07 11:55:35 -0400 | [diff] [blame] | 18 | /* |
| 19 | * We could implement faster get_unaligned_[be/le]64 using the ldna |
| 20 | * instruction on tilegx; however, we need to either copy all of the |
| 21 | * other generic functions to here (which is pretty ugly) or else |
| 22 | * modify both the generic code and other arch code to allow arch |
| 23 | * specific unaligned data access functions. Given these functions |
| 24 | * are not often called, we'll stick with the generic version. |
| 25 | */ |
| 26 | #include <asm-generic/unaligned.h> |
| Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 27 | |
| David Howells | bd119c6 | 2012-03-28 18:30:03 +0100 | [diff] [blame] | 28 | /* |
| 29 | * Is the kernel doing fixups of unaligned accesses? If <0, no kernel |
| 30 | * intervention occurs and SIGBUS is delivered with no data address |
| 31 | * info. If 0, the kernel single-steps the instruction to discover |
| 32 | * the data address to provide with the SIGBUS. If 1, the kernel does |
| 33 | * a fixup. |
| 34 | */ |
| 35 | extern int unaligned_fixup; |
| 36 | |
| 37 | /* Is the kernel printing on each unaligned fixup? */ |
| 38 | extern int unaligned_printk; |
| 39 | |
| 40 | /* Number of unaligned fixups performed */ |
| 41 | extern unsigned int unaligned_fixup_count; |
| 42 | |
| Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 43 | #endif /* _ASM_TILE_UNALIGNED_H */ |