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2024-05-10 23fa18eaa71266feff7ba8d83022d9e1cc83c65a 
 kernel/arch/powerpc/include/asm/mce.h
....@@ -1,19 +1,6 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
12 /*
23  * Machine check exception header file.
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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 as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
174  *
185  * Copyright 2013 IBM Corporation
196  * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
....@@ -31,7 +18,7 @@
3118 enum MCE_Severity {
3219 	MCE_SEV_NO_ERROR = 0,
3320 	MCE_SEV_WARNING = 1,
34
-	MCE_SEV_ERROR_SYNC = 2,
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+	MCE_SEV_SEVERE = 2,
3522 	MCE_SEV_FATAL = 3,
3623 };
3724 
....@@ -43,6 +30,10 @@
4330 enum MCE_Initiator {
4431 	MCE_INITIATOR_UNKNOWN = 0,
4532 	MCE_INITIATOR_CPU = 1,
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+	MCE_INITIATOR_PCI = 2,
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+	MCE_INITIATOR_ISA = 3,
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+	MCE_INITIATOR_MEMORY= 4,
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+	MCE_INITIATOR_POWERMGM = 5,
4637 };
4738 
4839 enum MCE_ErrorType {
....@@ -54,6 +45,16 @@
5445 	MCE_ERROR_TYPE_USER = 5,
5546 	MCE_ERROR_TYPE_RA = 6,
5647 	MCE_ERROR_TYPE_LINK = 7,
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+	MCE_ERROR_TYPE_DCACHE = 8,
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+	MCE_ERROR_TYPE_ICACHE = 9,
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+};
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+
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+enum MCE_ErrorClass {
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+	MCE_ECLASS_UNKNOWN = 0,
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+	MCE_ECLASS_HARDWARE,
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+	MCE_ECLASS_HARD_INDETERMINATE,
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+	MCE_ECLASS_SOFTWARE,
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+	MCE_ECLASS_SOFT_INDETERMINATE,
5758 };
5859 
5960 enum MCE_UeErrorType {
....@@ -85,6 +86,7 @@
8586 enum MCE_UserErrorType {
8687 	MCE_USER_ERROR_INDETERMINATE = 0,
8788 	MCE_USER_ERROR_TLBIE = 1,
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+	MCE_USER_ERROR_SCV = 2,
8890 };
8991 
9092 enum MCE_RaErrorType {
....@@ -110,73 +112,76 @@
110112 };
111113 
112114 struct machine_check_event {
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-	enum MCE_Version	version:8;	/* 0x00 */
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-	uint8_t			in_use;		/* 0x01 */
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-	enum MCE_Severity	severity:8;	/* 0x02 */
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-	enum MCE_Initiator	initiator:8;	/* 0x03 */
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-	enum MCE_ErrorType	error_type:8;	/* 0x04 */
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-	enum MCE_Disposition	disposition:8;	/* 0x05 */
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-	uint8_t			reserved_1[2];	/* 0x06 */
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-	uint64_t		gpr3;		/* 0x08 */
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-	uint64_t		srr0;		/* 0x10 */
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-	uint64_t		srr1;		/* 0x18 */
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-	union {					/* 0x20 */
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+	enum MCE_Version	version:8;
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+	u8			in_use;
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+	enum MCE_Severity	severity:8;
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+	enum MCE_Initiator	initiator:8;
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+	enum MCE_ErrorType	error_type:8;
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+	enum MCE_ErrorClass	error_class:8;
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+	enum MCE_Disposition	disposition:8;
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+	bool			sync_error;
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+	u16			cpu;
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+	u64			gpr3;
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+	u64			srr0;
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+	u64			srr1;
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+	union {
124128 		struct {
125129 			enum MCE_UeErrorType ue_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		physical_address_provided;
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-			uint8_t		reserved_1[5];
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-			uint64_t	effective_address;
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-			uint64_t	physical_address;
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-			uint8_t		reserved_2[8];
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+			u8		effective_address_provided;
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+			u8		physical_address_provided;
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+			u8		ignore_event;
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+			u8		reserved_1[4];
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+			u64		effective_address;
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+			u64		physical_address;
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+			u8		reserved_2[8];
132137 		} ue_error;
133138 
134139 		struct {
135140 			enum MCE_SlbErrorType slb_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		reserved_1[6];
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-			uint64_t	effective_address;
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-			uint8_t		reserved_2[16];
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+			u8		effective_address_provided;
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+			u8		reserved_1[6];
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+			u64		effective_address;
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+			u8		reserved_2[16];
140145 		} slb_error;
141146 
142147 		struct {
143148 			enum MCE_EratErrorType erat_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		reserved_1[6];
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-			uint64_t	effective_address;
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-			uint8_t		reserved_2[16];
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+			u8		effective_address_provided;
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+			u8		reserved_1[6];
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+			u64		effective_address;
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+			u8		reserved_2[16];
148153 		} erat_error;
149154 
150155 		struct {
151156 			enum MCE_TlbErrorType tlb_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		reserved_1[6];
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-			uint64_t	effective_address;
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-			uint8_t		reserved_2[16];
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+			u8		effective_address_provided;
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+			u8		reserved_1[6];
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+			u64		effective_address;
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+			u8		reserved_2[16];
156161 		} tlb_error;
157162 
158163 		struct {
159164 			enum MCE_UserErrorType user_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		reserved_1[6];
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-			uint64_t	effective_address;
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-			uint8_t		reserved_2[16];
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+			u8		effective_address_provided;
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+			u8		reserved_1[6];
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+			u64		effective_address;
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+			u8		reserved_2[16];
164169 		} user_error;
165170 
166171 		struct {
167172 			enum MCE_RaErrorType ra_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		reserved_1[6];
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-			uint64_t	effective_address;
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-			uint8_t		reserved_2[16];
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+			u8		effective_address_provided;
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+			u8		reserved_1[6];
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+			u64		effective_address;
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+			u8		reserved_2[16];
172177 		} ra_error;
173178 
174179 		struct {
175180 			enum MCE_LinkErrorType link_error_type:8;
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-			uint8_t		effective_address_provided;
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-			uint8_t		reserved_1[6];
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-			uint64_t	effective_address;
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-			uint8_t		reserved_2[16];
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+			u8		effective_address_provided;
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+			u8		reserved_1[6];
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+			u64		effective_address;
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+			u8		reserved_2[16];
180185 		} link_error;
181186 	} u;
182187 };
....@@ -194,6 +199,9 @@
194199 	} u;
195200 	enum MCE_Severity	severity:8;
196201 	enum MCE_Initiator	initiator:8;
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+	enum MCE_ErrorClass	error_class:8;
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+	bool			sync_error;
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+	bool			ignore_event;
197205 };
198206 
199207 #define MAX_MC_EVT	100
....@@ -202,6 +210,9 @@
202210 #define MCE_EVENT_RELEASE	true
203211 #define MCE_EVENT_DONTRELEASE	false
204212 
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+struct pt_regs;
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+struct notifier_block;
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+
205216 extern void save_mce_event(struct pt_regs *regs, long handled,
206217 			   struct mce_error_info *mce_err, uint64_t nip,
207218 			   uint64_t addr, uint64_t phys_addr);
....@@ -209,5 +220,17 @@
209220 extern void release_mce_event(void);
210221 extern void machine_check_queue_event(void);
211222 extern void machine_check_print_event_info(struct machine_check_event *evt,
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-					   bool user_mode);
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+					   bool user_mode, bool in_guest);
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+unsigned long addr_to_pfn(struct pt_regs *regs, unsigned long addr);
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+extern void mce_common_process_ue(struct pt_regs *regs,
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+				  struct mce_error_info *mce_err);
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+int mce_register_notifier(struct notifier_block *nb);
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+int mce_unregister_notifier(struct notifier_block *nb);
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+#ifdef CONFIG_PPC_BOOK3S_64
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+void flush_and_reload_slb(void);
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+long __machine_check_early_realmode_p7(struct pt_regs *regs);
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+long __machine_check_early_realmode_p8(struct pt_regs *regs);
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+long __machine_check_early_realmode_p9(struct pt_regs *regs);
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+long __machine_check_early_realmode_p10(struct pt_regs *regs);
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+#endif /* CONFIG_PPC_BOOK3S_64 */
213236 #endif /* __ASM_PPC64_MCE_H__ */