forked from ~ljy/RK356X_SDK_RELEASE

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hc
2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01 
 kernel/arch/sparc/kernel/traps_64.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /* arch/sparc64/kernel/traps.c
23  *
34  * Copyright (C) 1995,1997,2008,2009,2012 David S. Miller (davem@davemloft.net)
....@@ -17,6 +18,7 @@
1718 #include <linux/smp.h>
1819 #include <linux/mm.h>
1920 #include <linux/init.h>
21
+#include <linux/kallsyms.h>
2022 #include <linux/kdebug.h>
2123 #include <linux/ftrace.h>
2224 #include <linux/reboot.h>
....@@ -28,7 +30,6 @@
2830 #include <asm/ptrace.h>
2931 #include <asm/oplib.h>
3032 #include <asm/page.h>
31
-#include <asm/pgtable.h>
3233 #include <asm/unistd.h>
3334 #include <linux/uaccess.h>
3435 #include <asm/fpumacro.h>
....@@ -107,7 +108,7 @@
107108 		regs->tnpc &= 0xffffffff;
108109 	}
109110 	force_sig_fault(SIGILL, ILL_ILLTRP,
110
-			(void __user *)regs->tpc, lvl, current);
111
+			(void __user *)regs->tpc, lvl);
111112 }
112113 
113114 void bad_trap_tl1(struct pt_regs *regs, long lvl)
....@@ -201,7 +202,7 @@
201202 		regs->tnpc &= 0xffffffff;
202203 	}
203204 	force_sig_fault(SIGSEGV, SEGV_MAPERR,
204
-			(void __user *)regs->tpc, 0, current);
205
+			(void __user *)regs->tpc, 0);
205206 out:
206207 	exception_exit(prev_state);
207208 }
....@@ -236,7 +237,7 @@
236237 		regs->tpc &= 0xffffffff;
237238 		regs->tnpc &= 0xffffffff;
238239 	}
239
-	force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *) addr, 0, current);
240
+	force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *) addr, 0);
240241 }
241242 
242243 void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
....@@ -320,7 +321,7 @@
320321 	if (is_no_fault_exception(regs))
321322 		return;
322323 
323
-	force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)sfar, 0, current);
324
+	force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)sfar, 0);
324325 out:
325326 	exception_exit(prev_state);
326327 }
....@@ -384,16 +385,13 @@
384385 	 */
385386 	switch (type) {
386387 	case HV_FAULT_TYPE_INV_ASI:
387
-		force_sig_fault(SIGILL, ILL_ILLADR, (void __user *)addr, 0,
388
-				current);
388
+		force_sig_fault(SIGILL, ILL_ILLADR, (void __user *)addr, 0);
389389 		break;
390390 	case HV_FAULT_TYPE_MCD_DIS:
391
-		force_sig_fault(SIGSEGV, SEGV_ACCADI, (void __user *)addr, 0,
392
-				current);
391
+		force_sig_fault(SIGSEGV, SEGV_ACCADI, (void __user *)addr, 0);
393392 		break;
394393 	default:
395
-		force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)addr, 0,
396
-				current);
394
+		force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)addr, 0);
397395 		break;
398396 	}
399397 }
....@@ -570,7 +568,7 @@
570568 		regs->tpc &= 0xffffffff;
571569 		regs->tnpc &= 0xffffffff;
572570 	}
573
-	force_sig_fault(SIGBUS, BUS_OBJERR, (void *)0, 0, current);
571
+	force_sig_fault(SIGBUS, BUS_OBJERR, (void *)0, 0);
574572 }
575573 
576574 void spitfire_access_error(struct pt_regs *regs, unsigned long status_encoded, unsigned long afar)
....@@ -2072,7 +2070,7 @@
20722070 	 * code
20732071 	 */
20742072 	force_sig_fault(SIGSEGV, SEGV_ADIDERR, (void __user *)ent.err_raddr,
2075
-			0, current);
2073
+			0);
20762074 }
20772075 
20782076 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
....@@ -2180,13 +2178,13 @@
21802178 				addr += PAGE_SIZE;
21812179 			}
21822180 		}
2183
-		force_sig(SIGKILL, current);
2181
+		force_sig(SIGKILL);
21842182 
21852183 		return true;
21862184 	}
21872185 	if (attrs & SUN4V_ERR_ATTRS_PIO) {
21882186 		force_sig_fault(SIGBUS, BUS_ADRERR,
2189
-				(void __user *)sun4v_get_vaddr(regs), 0, current);
2187
+				(void __user *)sun4v_get_vaddr(regs), 0);
21902188 		return true;
21912189 	}
21922190 
....@@ -2343,7 +2341,7 @@
23432341 				code = FPE_FLTRES;
23442342 		}
23452343 		force_sig_fault(SIGFPE, code,
2346
-				(void __user *)regs->tpc, 0, current);
2344
+				(void __user *)regs->tpc, 0);
23472345 	}
23482346 }
23492347 
....@@ -2398,7 +2396,7 @@
23982396 		regs->tnpc &= 0xffffffff;
23992397 	}
24002398 	force_sig_fault(SIGEMT, EMT_TAGOVF,
2401
-			(void __user *)regs->tpc, 0, current);
2399
+			(void __user *)regs->tpc, 0);
24022400 out:
24032401 	exception_exit(prev_state);
24042402 }
....@@ -2418,7 +2416,7 @@
24182416 		regs->tnpc &= 0xffffffff;
24192417 	}
24202418 	force_sig_fault(SIGFPE, FPE_INTDIV,
2421
-			(void __user *)regs->tpc, 0, current);
2419
+			(void __user *)regs->tpc, 0);
24222420 out:
24232421 	exception_exit(prev_state);
24242422 }
....@@ -2453,7 +2451,7 @@
24532451 	printk("\n");
24542452 }
24552453 
2456
-void show_stack(struct task_struct *tsk, unsigned long *_ksp)
2454
+void show_stack(struct task_struct *tsk, unsigned long *_ksp, const char *loglvl)
24572455 {
24582456 	unsigned long fp, ksp;
24592457 	struct thread_info *tp;
....@@ -2477,7 +2475,7 @@
24772475 
24782476 	fp = ksp + STACK_BIAS;
24792477 
2480
-	printk("Call Trace:\n");
2478
+	printk("%sCall Trace:\n", loglvl);
24812479 	do {
24822480 		struct sparc_stackf *sf;
24832481 		struct pt_regs *regs;
....@@ -2498,13 +2496,14 @@
24982496 			fp = (unsigned long)sf->fp + STACK_BIAS;
24992497 		}
25002498 
2501
-		printk(" [%016lx] %pS\n", pc, (void *) pc);
2499
+		print_ip_sym(loglvl, pc);
25022500 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
25032501 		if ((pc + 8UL) == (unsigned long) &return_to_handler) {
2504
-			int index = tsk->curr_ret_stack;
2505
-			if (tsk->ret_stack && index >= graph) {
2506
-				pc = tsk->ret_stack[index - graph].ret;
2507
-				printk(" [%016lx] %pS\n", pc, (void *) pc);
2502
+			struct ftrace_ret_stack *ret_stack;
2503
+			ret_stack = ftrace_graph_get_ret_stack(tsk, graph);
2504
+			if (ret_stack) {
2505
+				pc = ret_stack->ret;
2506
+				print_ip_sym(loglvl, pc);
25082507 				graph++;
25092508 			}
25102509 		}
....@@ -2565,9 +2564,7 @@
25652564 	}
25662565 	if (panic_on_oops)
25672566 		panic("Fatal exception");
2568
-	if (regs->tstate & TSTATE_PRIV)
2569
-		do_exit(SIGKILL);
2570
-	do_exit(SIGSEGV);
2567
+	make_task_dead((regs->tstate & TSTATE_PRIV)? SIGKILL : SIGSEGV);
25712568 }
25722569 EXPORT_SYMBOL(die_if_kernel);
25732570 
....@@ -2613,7 +2610,7 @@
26132610 			}
26142611 		}
26152612 	}
2616
-	force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)pc, 0, current);
2613
+	force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)pc, 0);
26172614 out:
26182615 	exception_exit(prev_state);
26192616 }
....@@ -2633,7 +2630,7 @@
26332630 	if (is_no_fault_exception(regs))
26342631 		return;
26352632 
2636
-	force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)sfar, 0, current);
2633
+	force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)sfar, 0);
26372634 out:
26382635 	exception_exit(prev_state);
26392636 }
....@@ -2651,7 +2648,7 @@
26512648 	if (is_no_fault_exception(regs))
26522649 		return;
26532650 
2654
-	force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *) addr, 0, current);
2651
+	force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *) addr, 0);
26552652 }
26562653 
26572654 /* sun4v_mem_corrupt_detect_precise() - Handle precise exception on an ADI
....@@ -2698,7 +2695,7 @@
26982695 		regs->tpc &= 0xffffffff;
26992696 		regs->tnpc &= 0xffffffff;
27002697 	}
2701
-	force_sig_fault(SIGSEGV, SEGV_ADIPERR, (void __user *)addr, 0, current);
2698
+	force_sig_fault(SIGSEGV, SEGV_ADIPERR, (void __user *)addr, 0);
27022699 }
27032700 
27042701 void do_privop(struct pt_regs *regs)
....@@ -2714,7 +2711,7 @@
27142711 		regs->tnpc &= 0xffffffff;
27152712 	}
27162713 	force_sig_fault(SIGILL, ILL_PRVOPC,
2717
-			(void __user *)regs->tpc, 0, current);
2714
+			(void __user *)regs->tpc, 0);
27182715 out:
27192716 	exception_exit(prev_state);
27202717 }