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) 20 #define cop2_restore(r) octeon_cop2_restore(r) 21 22 #define cop2_present 1 23 #define cop2_lazy_restore 1 24 25 #else 26 27 #define cop2_present 0 28 #define cop2_lazy_restore 0 29 #define cop2_save(r) 30 #define cop2_restore(r) 31 #endif 32 33 enum cu2_ops { 34 CU2_EXCEPTION, 35 CU2_LWC2_OP, 36 CU2_LDC2_OP, 37 CU2_SWC2_OP, 38 CU2_SDC2_OP, 39 }; 40 41 extern int register_cu2_notifier(struct notifier_block *nb); 42 extern int cu2_notifier_call_chain(unsigned long val, void *v); 43 44 #define cu2_notifier(fn, pri) \ 45 ({ \ 46 static struct notifier_block fn##_nb = { \ 47 .notifier_call = fn, \ 48 .priority = pri \ 49 }; \ 50 \ 51 register_cu2_notifier(&fn##_nb); \ 52 }) 53 54 #endif /* __ASM_COP2_H */ 55