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