| 1 | |
| 2 | * This file is subject to the terms and conditions of the GNU General Public
|
| 3 | * License. See the file "COPYING" in the main directory of this archive
|
| 4 | * for more details.
|
| 5 | *
|
| 6 | * Copyright (C) 2009 Wind River Systems,
|
| 7 | * written by Ralf Baechle <[email protected]>
|
| 8 |
|
| 9 | #ifndef __ASM_COP2_H
|
| 10 | #define __ASM_COP2_H
|
| 11 |
|
| 12 | #include <linux/notifier.h>
|
| 13 |
|
| 14 | #if defined(CONFIG_CPU_CAVIUM_OCTEON)
|
| 15 |
|
| 16 | extern void octeon_cop2_save(struct octeon_cop2_state *);
|
| 17 | extern void octeon_cop2_restore(struct octeon_cop2_state *);
|
| 18 |
|
| 19 | #define cop2_save(r) octeon_cop2_save(&(r)->thread.cp2)
|
| 20 | #define cop2_restore(r) octeon_cop2_restore(&(r)->thread.cp2)
|
| 21 |
|
| 22 | #define cop2_present 1
|
| 23 | #define cop2_lazy_restore 1
|
| 24 |
|
| 25 | #elif defined(CONFIG_CPU_LOONGSON64)
|
| 26 |
|
| 27 | #define cop2_present 1
|
| 28 | #define cop2_lazy_restore 1
|
| 29 | #define cop2_save(r) do { (void)(r); } while (0)
|
| 30 | #define cop2_restore(r) do { (void)(r); } while (0)
|
| 31 |
|
| 32 | #else
|
| 33 |
|
| 34 | #define cop2_present 0
|
| 35 | #define cop2_lazy_restore 0
|
| 36 | #define cop2_save(r) do { (void)(r); } while (0)
|
| 37 | #define cop2_restore(r) do { (void)(r); } while (0)
|
| 38 | #endif
|
| 39 |
|
| 40 | enum cu2_ops {
|
| 41 | CU2_EXCEPTION,
|
| 42 | CU2_LWC2_OP,
|
| 43 | CU2_LDC2_OP,
|
| 44 | CU2_SWC2_OP,
|
| 45 | CU2_SDC2_OP,
|
| 46 | };
|
| 47 |
|
| 48 | extern int register_cu2_notifier(struct notifier_block *nb);
|
| 49 | extern int cu2_notifier_call_chain(unsigned long val, void *v);
|
| 50 |
|
| 51 | #define cu2_notifier(fn, pri) \
|
| 52 | ({ \
|
| 53 | static struct notifier_block fn##_nb = { \
|
| 54 | .notifier_call = fn, \
|
| 55 | .priority = pri \
|
| 56 | }; \
|
| 57 | \
|
| 58 | register_cu2_notifier(&fn##_nb); \
|
| 59 | })
|
| 60 |
|
| 61 | #endif
|