diff options
| author | Andrew Donnellan <andrew.donnellan@au1.ibm.com> | 2016-02-09 18:17:48 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-02-09 20:27:04 +1100 |
| commit | 9b4fffa14906fce7aabf1f032ddd7efc7a031bba (patch) | |
| tree | ecf6a730de9265a94f7760440953af1f1a00d8e8 /arch/powerpc/include | |
| parent | 31f6a4ada14de04ee6cd7ff03c8b6b5e282a13f0 (diff) | |
powerpc/powernv: new function to access OPAL msglog
Currently, the OPAL msglog/console buffer is exposed as a sysfs file, with
the sysfs read handler responsible for retrieving the log from the OPAL
buffer. We'd like to be able to use it in xmon as well.
Refactor the OPAL msglog code to create a new function, opal_msglog_copy(),
that copies to an arbitrary buffer. Separate the initialisation code into
generic memcons init and sysfs file creation.
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 07a99e638449..9d86c6651716 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -248,6 +248,7 @@ extern int opal_elog_init(void); extern void opal_platform_dump_init(void); extern void opal_sys_param_init(void); extern void opal_msglog_init(void); +extern void opal_msglog_sysfs_init(void); extern int opal_async_comp_init(void); extern int opal_sensor_init(void); extern int opal_hmi_handler_init(void); @@ -273,6 +274,8 @@ void opal_free_sg_list(struct opal_sg_list *sg); extern int opal_error_code(int rc); +ssize_t opal_msglog_copy(char *to, loff_t pos, size_t count); + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_OPAL_H */ |