62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2009 Wind River Systems,
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* written by Ralf Baechle <ralf@linux-mips.org>
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*/
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#ifndef __ASM_COP2_H
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#define __ASM_COP2_H
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#include <linux/notifier.h>
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#if defined(CONFIG_CPU_CAVIUM_OCTEON)
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extern void octeon_cop2_save(struct octeon_cop2_state *);
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extern void octeon_cop2_restore(struct octeon_cop2_state *);
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#define cop2_save(r) octeon_cop2_save(&(r)->thread.cp2)
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#define cop2_restore(r) octeon_cop2_restore(&(r)->thread.cp2)
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#define cop2_present 1
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#define cop2_lazy_restore 1
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#elif defined(CONFIG_CPU_LOONGSON64)
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#define cop2_present 1
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#define cop2_lazy_restore 1
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#define cop2_save(r) do { (void)(r); } while (0)
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#define cop2_restore(r) do { (void)(r); } while (0)
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#else
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#define cop2_present 0
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#define cop2_lazy_restore 0
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#define cop2_save(r) do { (void)(r); } while (0)
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#define cop2_restore(r) do { (void)(r); } while (0)
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#endif
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enum cu2_ops {
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CU2_EXCEPTION,
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CU2_LWC2_OP,
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CU2_LDC2_OP,
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CU2_SWC2_OP,
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CU2_SDC2_OP,
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};
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extern int register_cu2_notifier(struct notifier_block *nb);
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extern int cu2_notifier_call_chain(unsigned long val, void *v);
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#define cu2_notifier(fn, pri) \
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({ \
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static struct notifier_block fn##_nb = { \
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.notifier_call = fn, \
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.priority = pri \
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}; \
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\
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register_cu2_notifier(&fn##_nb); \
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})
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#endif /* __ASM_COP2_H */
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