9d67028090
Some processors, like embedded, that already have a PID register that is managed by the system. This patch separates the ACOP and PID processing into separate files so that the ACOP code can be shared. Signed-off-by: Jimi Xenidis <jimix@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
40 lines
1,004 B
C
40 lines
1,004 B
C
#ifndef _ARCH_POWERPC_MM_ICSWX_H_
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#define _ARCH_POWERPC_MM_ICSWX_H_
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/*
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* ICSWX and ACOP Management
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*
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* Copyright (C) 2011 Anton Blanchard, IBM Corp. <anton@samba.org>
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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; either version
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* 2 of the License, or (at your option) any later version.
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*
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*/
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#include <asm/mmu_context.h>
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/* also used to denote that PIDs are not used */
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#define COP_PID_NONE 0
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static inline void sync_cop(void *arg)
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{
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struct mm_struct *mm = arg;
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if (mm == current->active_mm)
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switch_cop(current->active_mm);
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}
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#ifdef CONFIG_PPC_ICSWX_PID
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extern int get_cop_pid(struct mm_struct *mm);
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extern int disable_cop_pid(struct mm_struct *mm);
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extern void free_cop_pid(int free_pid);
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#else
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#define get_cop_pid(m) (COP_PID_NONE)
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#define disable_cop_pid(m) (COP_PID_NONE)
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#define free_cop_pid(p)
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#endif
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#endif /* !_ARCH_POWERPC_MM_ICSWX_H_ */
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