diff options
| author | Horms <horms@verge.net.au> | 2007-07-25 16:06:25 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-07-25 11:12:47 -0700 |
| commit | a07ee86205808d36973440e68c7277f9ed63b87f (patch) | |
| tree | 183d1d592c42fce8081a40a881300e4cf304ec56 | |
| parent | 6ffbc82351c62eeeeaeb9e817ddf93049353493d (diff) | |
| download | linux-a07ee86205808d36973440e68c7277f9ed63b87f.tar.bz2 | |
[IA64] Ensure that machvec is set up takes place before serial console
Parse the machvec command line option outside of the early_param()
so that ia64_mv is set before any console intialisation that
may result from early_param parsing.
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
| -rw-r--r-- | arch/ia64/kernel/machvec.c | 27 | ||||
| -rw-r--r-- | arch/ia64/kernel/setup.c | 11 | ||||
| -rw-r--r-- | include/asm-ia64/machvec.h | 1 |
3 files changed, 27 insertions, 12 deletions
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c index 13df337508e7..7ccb228ceedc 100644 --- a/arch/ia64/kernel/machvec.c +++ b/arch/ia64/kernel/machvec.c @@ -13,14 +13,6 @@ struct ia64_machine_vector ia64_mv; EXPORT_SYMBOL(ia64_mv); -static __initdata const char *mvec_name; -static __init int setup_mvec(char *s) -{ - mvec_name = s; - return 0; -} -early_param("machvec", setup_mvec); - static struct ia64_machine_vector * __init lookup_machvec (const char *name) { @@ -41,7 +33,7 @@ machvec_init (const char *name) struct ia64_machine_vector *mv; if (!name) - name = mvec_name ? mvec_name : acpi_get_sysname(); + name = acpi_get_sysname(); mv = lookup_machvec(name); if (!mv) panic("generic kernel failed to find machine vector for" @@ -51,6 +43,23 @@ machvec_init (const char *name) printk(KERN_INFO "booting generic kernel on platform %s\n", name); } +void __init +machvec_init_from_cmdline(const char *cmdline) +{ + char str[64]; + const char *start; + char *end; + + if (! (start = strstr(cmdline, "machvec=")) ) + return machvec_init(NULL); + + strlcpy(str, start + strlen("machvec="), sizeof(str)); + if ( (end = strchr(str, ' ')) ) + *end = '\0'; + + return machvec_init(str); +} + #endif /* CONFIG_IA64_GENERIC */ void diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index cf06fe799041..7cecd2964200 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -491,12 +491,17 @@ setup_arch (char **cmdline_p) efi_init(); io_port_init(); - parse_early_param(); - #ifdef CONFIG_IA64_GENERIC - machvec_init(NULL); + /* machvec needs to be parsed from the command line + * before parse_early_param() is called to ensure + * that ia64_mv is initialised before any command line + * settings may cause console setup to occur + */ + machvec_init_from_cmdline(*cmdline_p); #endif + parse_early_param(); + if (early_console_setup(*cmdline_p) == 0) mark_bsp_online(); diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h index ca33eb181ff2..5cf8bf1e805e 100644 --- a/include/asm-ia64/machvec.h +++ b/include/asm-ia64/machvec.h @@ -275,6 +275,7 @@ struct ia64_machine_vector { extern struct ia64_machine_vector ia64_mv; extern void machvec_init (const char *name); +extern void machvec_init_from_cmdline(const char *cmdline); # else # error Unknown configuration. Update asm-ia64/machvec.h. |