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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_XLP) extern void nlm_cop2_save(struct nlm_cop2_state *); extern void nlm_cop2_restore(struct nlm_cop2_state *); #define cop2_save(r) nlm_cop2_save(&(r)->thread.cp2) #define cop2_restore(r) nlm_cop2_restore(&(r)->thread.cp2) #define cop2_present 1 #define cop2_lazy_restore 0 #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 */ |