ba02f0eb82
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>
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_UNALIGNED_H
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#define _ASM_TILE_UNALIGNED_H
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/*
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* We could implement faster get_unaligned_[be/le]64 using the ldna
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* instruction on tilegx; however, we need to either copy all of the
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* other generic functions to here (which is pretty ugly) or else
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* modify both the generic code and other arch code to allow arch
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* specific unaligned data access functions. Given these functions
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* are not often called, we'll stick with the generic version.
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*/
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#include <asm-generic/unaligned.h>
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/*
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* Is the kernel doing fixups of unaligned accesses? If <0, no kernel
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* intervention occurs and SIGBUS is delivered with no data address
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* info. If 0, the kernel single-steps the instruction to discover
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* the data address to provide with the SIGBUS. If 1, the kernel does
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* a fixup.
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*/
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extern int unaligned_fixup;
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/* Is the kernel printing on each unaligned fixup? */
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extern int unaligned_printk;
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/* Number of unaligned fixups performed */
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extern unsigned int unaligned_fixup_count;
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#endif /* _ASM_TILE_UNALIGNED_H */
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