sparc64/sparc64/trap.c

88 void trap(struct trapframe *tf);
89 void syscall(struct trapframe *tf);
92 static int trap_pfault(struct thread *td, struct trapframe *tf);
255 trap(struct trapframe *tf)
267 	    trap_msg[tf->tf_type & ~T_KERNEL],
268 	    (TRAPF_USERMODE(tf) ? "user" : "kernel"), rdpr(pil));
272 	if ((tf->tf_tstate & TSTATE_PRIV) == 0) {
278 		td->td_frame = tf;
279 		addr = tf->tf_tpc;
280 		ucode = (int)tf->tf_type; /* XXX not POSIX */
284 		switch (tf->tf_type) {
287 			addr = tf->tf_sfar;
290 			sig = trap_pfault(td, tf);
293 			sig = rwindow_load(td, tf, 2);
296 			sig = rwindow_load(td, tf, 1);
309 			if (tf->tf_type > T_MAX)
311 				    tf->tf_type);
312 			else if (trap_sig[tf->tf_type] == -1)
314 				    trap_msg[tf->tf_type]);
315 			sig = trap_sig[tf->tf_type];
323 				    tf->tf_type);
332 			ksi.ksi_trapno = (int)tf->tf_type;
336 		userret(td, tf);
338 		KASSERT((tf->tf_type & T_KERNEL) != 0,
346 		switch (tf->tf_type & ~T_KERNEL) {
349 			error = (kdb_trap(tf->tf_type, 0, tf) == 0);
350 			TF_DONE(tf);
355 			error = db_watch_trap(tf);
361 			error = trap_pfault(td, tf);
365 			if ((tf->tf_sfsr & MMU_SFSR_FV) != 0 &&
366 			    MMU_SFSR_GET_ASI(tf->tf_sfsr) == ASI_AIUP) {
367 				if (tf->tf_tpc >= (u_long)copy_nofault_begin &&
368 				    tf->tf_tpc <= (u_long)copy_nofault_end) {
369 					tf->tf_tpc = (u_long)copy_fault;
370 					tf->tf_tnpc = tf->tf_tpc + 4;
374 				if (tf->tf_tpc >= (u_long)fs_nofault_begin &&
375 				    tf->tf_tpc <= (u_long)fs_nofault_end) {
376 					tf->tf_tpc = (u_long)fs_fault;
377 					tf->tf_tnpc = tf->tf_tpc + 4;
391 			if (tf->tf_tpc > (u_long)fas_nofault_begin &&
392 			    tf->tf_tpc < (u_long)fas_nofault_end) {
395 				tf->tf_tpc = (u_long)fas_fault;
396 				tf->tf_tnpc = tf->tf_tpc + 4;
411 			tf->tf_type &= ~T_KERNEL;
412 			if (tf->tf_type > T_MAX)
414 				    tf->tf_type);
415 			panic("trap: %s (kernel)", trap_msg[tf->tf_type]);
447 trap_pfault(struct thread *td, struct trapframe *tf)
467 	ctx = TLB_TAR_CTX(tf->tf_tar);
468 	type = tf->tf_type & ~T_KERNEL;
469 	va = TLB_TAR_VA(tf->tf_tar);
484 		if ((tf->tf_tstate & TSTATE_PRIV) != 0 &&
485 		    (tf->tf_tpc >= (u_long)fs_nofault_intr_begin &&
486 		    tf->tf_tpc <= (u_long)fs_nofault_intr_end)) {
487 			tf->tf_tpc = (u_long)fs_fault;
488 			tf->tf_tnpc = tf->tf_tpc + 4;
500 		KASSERT(tf->tf_tstate & TSTATE_PRIV,
503 		if (tf->tf_tpc >= (u_long)copy_nofault_begin &&
504 		    tf->tf_tpc <= (u_long)copy_nofault_end) {
508 				tf->tf_tpc = (u_long)copy_fault;
509 				tf->tf_tnpc = tf->tf_tpc + 4;
525 	if (ctx != TLB_CTX_KERNEL && (tf->tf_tstate & TSTATE_PRIV) != 0) {
526 		if (tf->tf_tpc >= (u_long)fs_nofault_begin &&
527 		    tf->tf_tpc <= (u_long)fs_nofault_end) {
528 			tf->tf_tpc = (u_long)fs_fault;
529 			tf->tf_tnpc = tf->tf_tpc + 4;
532 		if (tf->tf_tpc >= (u_long)copy_nofault_begin &&
533 		    tf->tf_tpc <= (u_long)copy_nofault_end) {
534 			tf->tf_tpc = (u_long)copy_fault;
535 			tf->tf_tnpc = tf->tf_tpc + 4;
548 	struct trapframe *tf;
557 	tf = td->td_frame;
562 	sa->code = tf->tf_global[1];
565 		sa->code = tf->tf_out[reg++];
581 	bcopy(&tf->tf_out[reg], sa->args, sizeof(sa->args[0]) * regcnt);
583 		error = copyin((void *)(tf->tf_out[6] + SPOFF +
603 syscall(struct trapframe *tf)
609 	td->td_frame = tf;
618 	td->td_pcb->pcb_tpc = tf->tf_tpc;
619 	TF_DONE(tf);