41 static inline enum direction decode_direction(unsigned int insn)  in decode_direction()  argument
43 	unsigned long tmp = (insn >> 21) & 1;  in decode_direction()
48 		switch ((insn>>19)&0xf) {  in decode_direction()
58 static inline int decode_access_size(struct pt_regs *regs, unsigned int insn)  in decode_access_size()  argument
62 	tmp = ((insn >> 19) & 0xf);  in decode_access_size()
73 		printk("Impossible unaligned trap. insn=%08x\n", insn);  in decode_access_size()
86 static inline int decode_asi(unsigned int insn, struct pt_regs *regs)  in decode_asi()  argument
88 	if (insn & 0x800000) {  in decode_asi()
89 		if (insn & 0x2000)  in decode_asi()
92 			return (unsigned char)(insn >> 5);		/* imm_asi */  in decode_asi()
98 static inline int decode_signedness(unsigned int insn)  in decode_signedness()  argument
100 	return (insn & 0x400000);  in decode_signedness()
169 					unsigned int insn, unsigned int rd)  in compute_effective_address()  argument
172 	unsigned int rs1 = (insn >> 14) & 0x1f;  in compute_effective_address()
173 	unsigned int rs2 = insn & 0x1f;  in compute_effective_address()
176 	if (insn & 0x2000) {  in compute_effective_address()
178 		addr = (fetch_reg(rs1, regs) + sign_extend_imm13(insn));  in compute_effective_address()
248 static inline int floating_point_load_or_store_p(unsigned int insn)  in floating_point_load_or_store_p()  argument
250 	return (insn >> 24) & 1;  in floating_point_load_or_store_p()
253 static inline int ok_for_kernel(unsigned int insn)  in ok_for_kernel()  argument
255 	return !floating_point_load_or_store_p(insn);  in ok_for_kernel()
261 	unsigned int insn = current_thread_info()->kern_una_insn;  in kernel_mna_trap_fault()  local
268 		address = compute_effective_address(regs, insn,  in kernel_mna_trap_fault()
269 						    ((insn >> 25) & 0x1f));  in kernel_mna_trap_fault()
305 asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)  in kernel_unaligned_trap()  argument
307 	enum direction dir = decode_direction(insn);  in kernel_unaligned_trap()
308 	int size = decode_access_size(regs, insn);  in kernel_unaligned_trap()
312 	current_thread_info()->kern_una_insn = insn;  in kernel_unaligned_trap()
314 	orig_asi = asi = decode_asi(insn, regs);  in kernel_unaligned_trap()
326 	if (!ok_for_kernel(insn) || dir == both) {  in kernel_unaligned_trap()
337 		addr = compute_effective_address(regs, insn,  in kernel_unaligned_trap()
338 						 ((insn >> 25) & 0x1f));  in kernel_unaligned_trap()
353 			reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs);  in kernel_unaligned_trap()
356 					  decode_signedness(insn), asi);  in kernel_unaligned_trap()
379 			err = do_int_store(((insn>>25)&0x1f), size,  in kernel_unaligned_trap()
395 int handle_popc(u32 insn, struct pt_regs *regs)  in handle_popc()  argument
398 	int ret, rd = ((insn >> 25) & 0x1f);  in handle_popc()
402 	if (insn & 0x2000) {  in handle_popc()
404 		value = sign_extend_imm13(insn);  in handle_popc()
406 		maybe_flush_windows(0, insn & 0x1f, rd, from_kernel);  in handle_popc()
407 		value = fetch_reg(insn & 0x1f, regs);  in handle_popc()
436 int handle_ldf_stq(u32 insn, struct pt_regs *regs)  in handle_ldf_stq()  argument
438 	unsigned long addr = compute_effective_address(regs, insn, 0);  in handle_ldf_stq()
441 	int asi = decode_asi(insn, regs);  in handle_ldf_stq()
448 	if (insn & 0x200000) {  in handle_ldf_stq()
452 		freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20);  in handle_ldf_stq()
513 		switch (insn & 0x180000) {  in handle_ldf_stq()
519 			freg = (insn >> 25) & 0x1f;  in handle_ldf_stq()
521 			freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20);  in handle_ldf_stq()
569 void handle_ld_nf(u32 insn, struct pt_regs *regs)  in handle_ld_nf()  argument
571 	int rd = ((insn >> 25) & 0x1f);  in handle_ld_nf()
581 		if ((insn & 0x780000) == 0x180000)  in handle_ld_nf()
585 		if ((insn & 0x780000) == 0x180000)  in handle_ld_nf()
589 		if ((insn & 0x780000) == 0x180000)  in handle_ld_nf()
600 	u32 insn;  in handle_lddfmna()  local
611 	if (get_user(insn, (u32 __user *) pc) != -EFAULT) {  in handle_lddfmna()
612 		int asi = decode_asi(insn, regs);  in handle_lddfmna()
629 		freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20);  in handle_lddfmna()
664 	u32 insn;  in handle_stdfmna()  local
675 	if (get_user(insn, (u32 __user *) pc) != -EFAULT) {  in handle_stdfmna()
676 		int asi = decode_asi(insn, regs);  in handle_stdfmna()
677 		freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20);  in handle_stdfmna()