add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/linux/pstore_ram.h
..
..
@@ -1,17 +1,8 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
1
2
 /*
2
3
  * Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
3
4
  * Copyright (C) 2011 Kees Cook <keescook@chromium.org>
4
5
  * Copyright (C) 2011 Google, Inc.
5
- *
6
- * This software is licensed under the terms of the GNU General Public
7
- * License version 2, as published by the Free Software Foundation, and
8
- * may be copied, distributed, and modified under those terms.
9
- *
10
- * This program is distributed in the hope that it will be useful,
11
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
- * GNU General Public License for more details.
14
- *
15
6
  */
16
7
 
17
8
 #ifndef __LINUX_PSTORE_RAM_H__
..
..
@@ -22,8 +13,8 @@
22
13
 #include <linux/init.h>
23
14
 #include <linux/kernel.h>
24
15
 #include <linux/list.h>
25
-#include <linux/types.h>
26
16
 #include <linux/pstore.h>
17
+#include <linux/types.h>
27
18
 
28
19
 /*
29
20
  * Choose whether access to the RAM zone requires locking or not.  If a zone
..
..
@@ -31,16 +22,14 @@
31
22
  * PRZ_FLAG_NO_LOCK is used. For all other cases, locking is required.
32
23
  */
33
24
 #define PRZ_FLAG_NO_LOCK	BIT(0)
25
+/*
26
+ * If a PRZ should only have a single-boot lifetime, this marks it as
27
+ * getting wiped after its contents get copied out after boot.
28
+ */
29
+#define PRZ_FLAG_ZAP_OLD	BIT(1)
34
30
 
35
31
 struct persistent_ram_buffer;
36
32
 struct rs_control;
37
-
38
-struct persistent_ram_buffer {
39
-	uint32_t    sig;
40
-	atomic_t    start;
41
-	atomic_t    size;
42
-	uint8_t     data[0];
43
-};
44
33
 
45
34
 struct persistent_ram_ecc_info {
46
35
 	int block_size;
..
..
@@ -50,16 +39,55 @@
50
39
 	uint16_t *par;
51
40
 };
52
41
 
42
+/**
43
+ * struct persistent_ram_zone - Details of a persistent RAM zone (PRZ)
44
+ *                              used as a pstore backend
45
+ *
46
+ * @paddr:	physical address of the mapped RAM area
47
+ * @size:	size of mapping
48
+ * @label:	unique name of this PRZ
49
+ * @type:	frontend type for this PRZ
50
+ * @flags:	holds PRZ_FLAGS_* bits
51
+ *
52
+ * @buffer_lock:
53
+ *	locks access to @buffer "size" bytes and "start" offset
54
+ * @buffer:
55
+ *	pointer to actual RAM area managed by this PRZ
56
+ * @buffer_size:
57
+ *	bytes in @buffer->data (not including any trailing ECC bytes)
58
+ *
59
+ * @par_buffer:
60
+ *	pointer into @buffer->data containing ECC bytes for @buffer->data
61
+ * @par_header:
62
+ *	pointer into @buffer->data containing ECC bytes for @buffer header
63
+ *	(i.e. all fields up to @data)
64
+ * @rs_decoder:
65
+ *	RSLIB instance for doing ECC calculations
66
+ * @corrected_bytes:
67
+ *	ECC corrected bytes accounting since boot
68
+ * @bad_blocks:
69
+ *	ECC uncorrectable bytes accounting since boot
70
+ * @ecc_info:
71
+ *	ECC configuration details
72
+ *
73
+ * @old_log:
74
+ *	saved copy of @buffer->data prior to most recent wipe
75
+ * @old_log_size:
76
+ *	bytes contained in @old_log
77
+ *
78
+ */
53
79
 struct persistent_ram_zone {
54
80
 	phys_addr_t paddr;
55
81
 	size_t size;
56
82
 	void *vaddr;
83
+	char *label;
84
+	enum pstore_type_id type;
85
+	u32 flags;
86
+
87
+	raw_spinlock_t buffer_lock;
57
88
 	struct persistent_ram_buffer *buffer;
58
89
 	size_t buffer_size;
59
-	u32 flags;
60
-	raw_spinlock_t buffer_lock;
61
90
 
62
-	/* ECC correction */
63
91
 	char *par_buffer;
64
92
 	char *par_header;
65
93
 	struct rs_control *rs_decoder;
..
..
@@ -71,45 +99,9 @@
71
99
 	size_t old_log_size;
72
100
 };
73
101
 
74
-struct ramoops_context {
75
-	struct persistent_ram_zone **dprzs;	/* Oops dump zones */
76
-	struct persistent_ram_zone *cprz;	/* Console zone */
77
-	struct persistent_ram_zone **fprzs;	/* Ftrace zones */
78
-	struct persistent_ram_zone *mprz;	/* PMSG zone */
79
-#ifdef CONFIG_PSTORE_BOOT_LOG
80
-	struct persistent_ram_zone **boot_przs;	/* BOOT log zones */
81
-#endif
82
-	phys_addr_t phys_addr;
83
-	unsigned long size;
84
-	unsigned int memtype;
85
-	size_t record_size;
86
-	size_t console_size;
87
-	size_t ftrace_size;
88
-	size_t pmsg_size;
89
-#ifdef CONFIG_PSTORE_BOOT_LOG
90
-	size_t boot_log_size;
91
-#endif
92
-	int dump_oops;
93
-	u32 flags;
94
-	struct persistent_ram_ecc_info ecc_info;
95
-	unsigned int max_dump_cnt;
96
-	unsigned int dump_write_cnt;
97
-	/* _read_cnt need clear on ramoops_pstore_open */
98
-	unsigned int dump_read_cnt;
99
-	unsigned int console_read_cnt;
100
-	unsigned int max_ftrace_cnt;
101
-	unsigned int ftrace_read_cnt;
102
-	unsigned int pmsg_read_cnt;
103
-#ifdef CONFIG_PSTORE_BOOT_LOG
104
-	unsigned int boot_log_read_cnt;
105
-	unsigned int max_boot_log_cnt;
106
-#endif
107
-	struct pstore_info pstore;
108
-};
109
-
110
102
 struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
111
103
 			u32 sig, struct persistent_ram_ecc_info *ecc_info,
112
-			unsigned int memtype, u32 flags);
104
+			unsigned int memtype, u32 flags, char *label);
113
105
 void persistent_ram_free(struct persistent_ram_zone *prz);
114
106
 void persistent_ram_zap(struct persistent_ram_zone *prz);
115
107
 
..
..
@@ -124,6 +116,9 @@
124
116
 void persistent_ram_free_old(struct persistent_ram_zone *prz);
125
117
 ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
126
118
 	char *str, size_t len);
119
+#ifdef CONFIG_PSTORE_BOOT_LOG
120
+ssize_t ramoops_pstore_read_for_boot_log(struct pstore_record *record);
121
+#endif
127
122
 
128
123
 /*
129
124
  * Ramoops platform data
..
..
@@ -145,7 +140,7 @@
145
140
 	unsigned long	boot_log_size;
146
141
 	unsigned long	max_boot_log_cnt;
147
142
 #endif
148
-	int		dump_oops;
143
+	int		max_reason;
149
144
 	u32		flags;
150
145
 	struct persistent_ram_ecc_info ecc_info;
151
146
 };