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ARC: [optim] Cache "current" in Register r25
Signed-off-by: Vineet Gupta <[email protected]>
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Original file line number | Diff line number | Diff line change |
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/* | ||
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License version 2 as | ||
* published by the Free Software Foundation. | ||
* | ||
* Vineetg: May 16th, 2008 | ||
* - Current macro is now implemented as "global register" r25 | ||
*/ | ||
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#ifndef _ASM_ARC_CURRENT_H | ||
#define _ASM_ARC_CURRENT_H | ||
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#ifdef __KERNEL__ | ||
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#ifndef __ASSEMBLY__ | ||
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#ifdef CONFIG_ARC_CURR_IN_REG | ||
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register struct task_struct *curr_arc asm("r25"); | ||
#define current (curr_arc) | ||
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#else | ||
#include <asm-generic/current.h> | ||
#endif /* ! CONFIG_ARC_CURR_IN_REG */ | ||
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#endif /* ! __ASSEMBLY__ */ | ||
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#endif /* __KERNEL__ */ | ||
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#endif /* _ASM_ARC_CURRENT_H */ |
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