Contributors: 14
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Benjamin Herrenschmidt |
103 |
28.30% |
9 |
29.03% |
| Andrew Morton |
63 |
17.31% |
2 |
6.45% |
| James Keniston |
52 |
14.29% |
2 |
6.45% |
| Aruna Balakrishnaiah |
36 |
9.89% |
3 |
9.68% |
| Anton Blanchard |
34 |
9.34% |
4 |
12.90% |
| Hari Bathini |
23 |
6.32% |
1 |
3.23% |
| Ishizaki Kou |
15 |
4.12% |
1 |
3.23% |
| Linas Vepstas |
14 |
3.85% |
1 |
3.23% |
| Utz Bacher |
10 |
2.75% |
1 |
3.23% |
| Arnd Bergmann |
4 |
1.10% |
2 |
6.45% |
| Paul Mackerras |
3 |
0.82% |
1 |
3.23% |
| Thomas Gleixner |
3 |
0.82% |
2 |
6.45% |
| David Howells |
3 |
0.82% |
1 |
3.23% |
| Michael Opdenacker |
1 |
0.27% |
1 |
3.23% |
| Total |
364 |
|
31 |
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* NVRAM definitions and access functions.
*/
#ifndef _ASM_POWERPC_NVRAM_H
#define _ASM_POWERPC_NVRAM_H
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <uapi/asm/nvram.h>
/*
* Set oops header version to distinguish between old and new format header.
* lnx,oops-log partition max size is 4000, header version > 4000 will
* help in identifying new header.
*/
#define OOPS_HDR_VERSION 5000
struct err_log_info {
__be32 error_type;
__be32 seq_num;
};
struct nvram_os_partition {
const char *name;
int req_size; /* desired size, in bytes */
int min_size; /* minimum acceptable size (0 means req_size) */
long size; /* size of data portion (excluding err_log_info) */
long index; /* offset of data portion of partition */
bool os_partition; /* partition initialized by OS, not FW */
};
struct oops_log_info {
__be16 version;
__be16 report_length;
__be64 timestamp;
} __attribute__((packed));
extern struct nvram_os_partition oops_log_partition;
#ifdef CONFIG_PPC_PSERIES
extern struct nvram_os_partition rtas_log_partition;
extern int nvram_write_error_log(char * buff, int length,
unsigned int err_type, unsigned int err_seq);
extern int nvram_read_error_log(char * buff, int length,
unsigned int * err_type, unsigned int *err_seq);
extern int nvram_clear_error_log(void);
extern int pSeries_nvram_init(void);
#endif /* CONFIG_PPC_PSERIES */
#ifdef CONFIG_MMIO_NVRAM
extern int mmio_nvram_init(void);
#else
static inline int mmio_nvram_init(void)
{
return -ENODEV;
}
#endif
extern int __init nvram_scan_partitions(void);
extern loff_t nvram_create_partition(const char *name, int sig,
int req_size, int min_size);
extern int nvram_remove_partition(const char *name, int sig,
const char *exceptions[]);
extern int nvram_get_partition_size(loff_t data_index);
extern loff_t nvram_find_partition(const char *name, int sig, int *out_size);
/* Return partition offset in nvram */
extern int pmac_get_partition(int partition);
/* Direct access to XPRAM on PowerMacs */
extern u8 pmac_xpram_read(int xpaddr);
extern void pmac_xpram_write(int xpaddr, u8 data);
/* Initialize NVRAM OS partition */
extern int __init nvram_init_os_partition(struct nvram_os_partition *part);
/* Initialize NVRAM oops partition */
extern void __init nvram_init_oops_partition(int rtas_partition_exists);
/* Read a NVRAM partition */
extern int nvram_read_partition(struct nvram_os_partition *part, char *buff,
int length, unsigned int *err_type,
unsigned int *error_log_cnt);
/* Write to NVRAM OS partition */
extern int nvram_write_os_partition(struct nvram_os_partition *part,
char *buff, int length,
unsigned int err_type,
unsigned int error_log_cnt);
#endif /* _ASM_POWERPC_NVRAM_H */