![Chris Metcalf](/assets/img/avatar_default.png)
First, fix a bug in asm/unaligned.h; we need to just use the asm-generic unaligned.h so we properly choose endian-correct flavors. Second, keep the hv/hypervisor.h ABI fully "native" in the sense that we don't have __BIG_ENDIAN__ ifdefs there. Instead, we use macros in the head_NN.S assembly code to properly extract two 32-bit structure members from a 64-bit register holding the structure. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/*
|
|
* Copyright 2010 Tilera Corporation. 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
|
|
* as published by the Free Software Foundation, version 2.
|
|
*
|
|
* 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, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#ifndef _ASM_TILE_UNALIGNED_H
|
|
#define _ASM_TILE_UNALIGNED_H
|
|
|
|
/*
|
|
* We could implement faster get_unaligned_[be/le]64 using the ldna
|
|
* instruction on tilegx; however, we need to either copy all of the
|
|
* other generic functions to here (which is pretty ugly) or else
|
|
* modify both the generic code and other arch code to allow arch
|
|
* specific unaligned data access functions. Given these functions
|
|
* are not often called, we'll stick with the generic version.
|
|
*/
|
|
#include <asm-generic/unaligned.h>
|
|
|
|
/*
|
|
* Is the kernel doing fixups of unaligned accesses? If <0, no kernel
|
|
* intervention occurs and SIGBUS is delivered with no data address
|
|
* info. If 0, the kernel single-steps the instruction to discover
|
|
* the data address to provide with the SIGBUS. If 1, the kernel does
|
|
* a fixup.
|
|
*/
|
|
extern int unaligned_fixup;
|
|
|
|
/* Is the kernel printing on each unaligned fixup? */
|
|
extern int unaligned_printk;
|
|
|
|
/* Number of unaligned fixups performed */
|
|
extern unsigned int unaligned_fixup_count;
|
|
|
|
#endif /* _ASM_TILE_UNALIGNED_H */
|