add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/arm/mm/alignment.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
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3
  *  linux/arch/arm/mm/alignment.c
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4
  *
..
..
@@ -6,10 +7,6 @@
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7
  *  Thumb alignment fault fixups (c) 2004 MontaVista Software, Inc.
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8
  *  - Adapted from gdb/sim/arm/thumbemu.c -- Thumb instruction emulation.
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  *    Copyright (C) 1996, Cygnus Software Technologies Ltd.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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10
  */
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11
 #include <linux/moduleparam.h>
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12
 #include <linux/compiler.h>
..
..
@@ -133,7 +130,7 @@
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 static int alignment_proc_show(struct seq_file *m, void *v)
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 {
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 	seq_printf(m, "User:\t\t%lu\n", ai_user);
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-	seq_printf(m, "System:\t\t%lu (%pF)\n", ai_sys, ai_sys_last_pc);
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+	seq_printf(m, "System:\t\t%lu (%pS)\n", ai_sys, ai_sys_last_pc);
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134
 	seq_printf(m, "Skipped:\t%lu\n", ai_skipped);
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 	seq_printf(m, "Half:\t\t%lu\n", ai_half);
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 	seq_printf(m, "Word:\t\t%lu\n", ai_word);
..
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@@ -165,12 +162,12 @@
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 	return count;
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 }
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164
 
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-static const struct file_operations alignment_proc_fops = {
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-	.open		= alignment_proc_open,
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-	.read		= seq_read,
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-	.llseek		= seq_lseek,
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-	.release	= single_release,
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-	.write		= alignment_proc_write,
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+static const struct proc_ops alignment_proc_ops = {
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+	.proc_open	= alignment_proc_open,
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+	.proc_read	= seq_read,
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+	.proc_lseek	= seq_lseek,
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+	.proc_release	= single_release,
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+	.proc_write	= alignment_proc_write,
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 };
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 #endif /* CONFIG_PROC_FS */
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173
 
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@@ -327,7 +324,7 @@
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 	__put32_unaligned_check("strbt", val, addr)
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325
 
329
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 static void
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-do_alignment_finish_ldst(unsigned long addr, unsigned long instr, struct pt_regs *regs, union offset_union offset)
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+do_alignment_finish_ldst(unsigned long addr, u32 instr, struct pt_regs *regs, union offset_union offset)
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328
 {
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329
 	if (!LDST_U_BIT(instr))
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 		offset.un = -offset.un;
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@@ -340,7 +337,7 @@
340
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 }
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338
 
342
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 static int
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-do_alignment_ldrhstrh(unsigned long addr, unsigned long instr, struct pt_regs *regs)
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+do_alignment_ldrhstrh(unsigned long addr, u32 instr, struct pt_regs *regs)
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 {
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 	unsigned int rd = RD_BITS(instr);
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343
 
..
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@@ -389,8 +386,7 @@
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386
 }
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387
 
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 static int
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-do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
393
-		      struct pt_regs *regs)
389
+do_alignment_ldrdstrd(unsigned long addr, u32 instr, struct pt_regs *regs)
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 {
395
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 	unsigned int rd = RD_BITS(instr);
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 	unsigned int rd2;
..
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@@ -452,7 +448,7 @@
452
448
 }
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449
 
454
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 static int
455
-do_alignment_ldrstr(unsigned long addr, unsigned long instr, struct pt_regs *regs)
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+do_alignment_ldrstr(unsigned long addr, u32 instr, struct pt_regs *regs)
456
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 {
457
453
 	unsigned int rd = RD_BITS(instr);
458
454
 
..
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@@ -501,7 +497,7 @@
501
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  * PU = 10             A                    B
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498
  */
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499
 static int
504
-do_alignment_ldmstm(unsigned long addr, unsigned long instr, struct pt_regs *regs)
500
+do_alignment_ldmstm(unsigned long addr, u32 instr, struct pt_regs *regs)
505
501
 {
506
502
 	unsigned int rd, rn, correction, nr_regs, regbits;
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503
 	unsigned long eaddr, newaddr;
..
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@@ -542,7 +538,7 @@
542
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 	 * processor for us.
543
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 	 */
544
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 	if (addr != eaddr) {
545
-		pr_err("LDMSTM: PC = %08lx, instr = %08lx, "
541
+		pr_err("LDMSTM: PC = %08lx, instr = %08x, "
546
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 			"addr = %08lx, eaddr = %08lx\n",
547
543
 			 instruction_pointer(regs), instr, addr, eaddr);
548
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 		show_regs(regs);
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@@ -698,7 +694,7 @@
698
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 			return subset[(L<<1) | ((tinstr & (1<<8)) >> 8)] |
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695
 			    (tinstr & 255);		/* register_list */
700
696
 		}
701
-		/* Else fall through for illegal instruction case */
697
+		fallthrough;	/* for illegal instruction case */
702
698
 
703
699
 	default:
704
700
 		return BAD_INSTR;
..
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@@ -719,10 +715,10 @@
719
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  * 2. Register name Rt from ARMv7 is same as Rd from ARMv6 (Rd is Rt)
720
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  */
721
717
 static void *
722
-do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs,
718
+do_alignment_t32_to_handler(u32 *pinstr, struct pt_regs *regs,
723
719
 			    union offset_union *poffset)
724
720
 {
725
-	unsigned long instr = *pinstr;
721
+	u32 instr = *pinstr;
726
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 	u16 tinst1 = (instr >> 16) & 0xffff;
727
723
 	u16 tinst2 = instr & 0xffff;
728
724
 
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@@ -754,6 +750,8 @@
754
750
 	case 0xe8e0:
755
751
 	case 0xe9e0:
756
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 		poffset->un = (tinst2 & 0xff) << 2;
753
+		fallthrough;
754
+
757
755
 	case 0xe940:
758
756
 	case 0xe9c0:
759
757
 		return do_alignment_ldrdstrd;
..
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@@ -768,7 +766,7 @@
768
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 	return NULL;
769
767
 }
770
768
 
771
-static int alignment_get_arm(struct pt_regs *regs, u32 *ip, unsigned long *inst)
769
+static int alignment_get_arm(struct pt_regs *regs, u32 *ip, u32 *inst)
772
770
 {
773
771
 	u32 instr = 0;
774
772
 	int fault;
..
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@@ -776,7 +774,7 @@
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 	if (user_mode(regs))
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775
 		fault = get_user(instr, ip);
778
776
 	else
779
-		fault = probe_kernel_address(ip, instr);
777
+		fault = get_kernel_nofault(instr, ip);
780
778
 
781
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 	*inst = __mem_to_opcode_arm(instr);
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780
 
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@@ -791,7 +789,7 @@
791
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 	if (user_mode(regs))
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790
 		fault = get_user(instr, ip);
793
791
 	else
794
-		fault = probe_kernel_address(ip, instr);
792
+		fault = get_kernel_nofault(instr, ip);
795
793
 
796
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 	*inst = __mem_to_opcode_thumb16(instr);
797
795
 
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@@ -801,10 +799,11 @@
801
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 static int
802
800
 do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
803
801
 {
804
-	union offset_union uninitialized_var(offset);
805
-	unsigned long instr = 0, instrptr;
806
-	int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs);
802
+	union offset_union offset;
803
+	unsigned long instrptr;
804
+	int (*handler)(unsigned long addr, u32 instr, struct pt_regs *regs);
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805
 	unsigned int type;
806
+	u32 instr = 0;
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807
 	u16 tinstr = 0;
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808
 	int isize = 4;
810
809
 	int thumb2_32b = 0;
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@@ -936,6 +935,9 @@
936
935
 	if (type == TYPE_LDST)
937
936
 		do_alignment_finish_ldst(addr, instr, regs, offset);
938
937
 
938
+	if (thumb_mode(regs))
939
+		regs->ARM_cpsr = it_advance(regs->ARM_cpsr);
940
+
939
941
 	return 0;
940
942
 
941
943
  bad_or_fault:
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@@ -955,7 +957,7 @@
955
957
 	 * Oops, we didn't handle the instruction.
956
958
 	 */
957
959
 	pr_err("Alignment trap: not handling instruction "
958
-		"%0*lx at [<%08lx>]\n",
960
+		"%0*x at [<%08lx>]\n",
959
961
 		isize << 1,
960
962
 		isize == 2 ? tinstr : instr, instrptr);
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 	ai_skipped += 1;
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@@ -965,7 +967,7 @@
965
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 	ai_user += 1;
966
968
 
967
969
 	if (ai_usermode & UM_WARN)
968
-		printk("Alignment trap: %s (%d) PC=0x%08lx Instr=0x%0*lx "
970
+		printk("Alignment trap: %s (%d) PC=0x%08lx Instr=0x%0*x "
969
971
 		       "Address=0x%08lx FSR 0x%03x\n", current->comm,
970
972
 			task_pid_nr(current), instrptr,
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973
 			isize << 1,
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@@ -976,15 +978,7 @@
976
978
 		goto fixup;
977
979
 
978
980
 	if (ai_usermode & UM_SIGNAL) {
979
-		siginfo_t si;
980
-
981
-		clear_siginfo(&si);
982
-		si.si_signo = SIGBUS;
983
-		si.si_errno = 0;
984
-		si.si_code = BUS_ADRALN;
985
-		si.si_addr = (void __user *)addr;
986
-
987
-		force_sig_info(si.si_signo, &si, current);
981
+		force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)addr);
988
982
 	} else {
989
983
 		/*
990
984
 		 * We're about to disable the alignment trap and return to
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..
@@ -1025,7 +1019,7 @@
1025
1019
 	struct proc_dir_entry *res;
1026
1020
 
1027
1021
 	res = proc_create("cpu/alignment", S_IWUSR | S_IRUGO, NULL,
1028
-			  &alignment_proc_fops);
1022
+			  &alignment_proc_ops);
1029
1023
 	if (!res)
1030
1024
 		return -ENOMEM;
1031
1025
 #endif
..
..
@@ -1055,8 +1049,4 @@
1055
1049
 	return 0;
1056
1050
 }
1057
1051
 
1058
-#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
1059
-fs_initcall_sync(alignment_init);
1060
-#else
1061
1052
 fs_initcall(alignment_init);
1062
-#endif