diff options
author | Horms <horms@verge.net.au> | 2006-03-23 14:27:12 -0800 |
---|---|---|
committer | Tony Luck <tony.luck@intel.com> | 2006-03-23 14:27:12 -0800 |
commit | a5b00bb4fe60796c791238cf5653b82110031c93 (patch) | |
tree | 05938f68e51ad465e7ff76f05945210523061c1b /arch/ia64/kernel | |
parent | 39e18de810049e836390830174a248ad241b156a (diff) | |
download | kernel_samsung_tuna-a5b00bb4fe60796c791238cf5653b82110031c93.zip kernel_samsung_tuna-a5b00bb4fe60796c791238cf5653b82110031c93.tar.gz kernel_samsung_tuna-a5b00bb4fe60796c791238cf5653b82110031c93.tar.bz2 |
IA64: Use early_parm to handle mvec_name and nomca
I'm not sure of the worthiness of this idea, so please consider it an RFC.
Its key merits are:
* Reuse existing infrastructure
* Greatly tightens up the parsing of nomca
* Greatly simplifies the parsing of machvec
Addition cleanup (moving setup_mvec() to machvec.c) by Ken Chen.
Signed-Off-By: Horms <horms@verge.net.au>
Signed-Off-By: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r-- | arch/ia64/kernel/machvec.c | 19 | ||||
-rw-r--r-- | arch/ia64/kernel/setup.c | 36 |
2 files changed, 27 insertions, 28 deletions
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c index c3a04ee..4b0b71d 100644 --- a/arch/ia64/kernel/machvec.c +++ b/arch/ia64/kernel/machvec.c @@ -14,7 +14,15 @@ struct ia64_machine_vector ia64_mv; EXPORT_SYMBOL(ia64_mv); -static struct ia64_machine_vector * +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) { extern struct ia64_machine_vector machvec_start[]; @@ -33,10 +41,13 @@ machvec_init (const char *name) { struct ia64_machine_vector *mv; + if (!name) + name = mvec_name ? mvec_name : acpi_get_sysname(); mv = lookup_machvec(name); - if (!mv) { - panic("generic kernel failed to find machine vector for platform %s!", name); - } + if (!mv) + panic("generic kernel failed to find machine vector for" + " platform %s!", name); + ia64_mv = *mv; printk(KERN_INFO "booting generic kernel on platform %s\n", name); } diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index eb07936..fc86077 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -389,6 +389,14 @@ check_for_logical_procs (void) } #endif +static __initdata int nomca; +static __init int setup_nomca(char *s) +{ + nomca = 1; + return 0; +} +early_param("nomca", setup_nomca); + void __init setup_arch (char **cmdline_p) { @@ -402,35 +410,15 @@ setup_arch (char **cmdline_p) efi_init(); io_port_init(); + parse_early_param(); + #ifdef CONFIG_IA64_GENERIC - { - const char *mvec_name = strstr (*cmdline_p, "machvec="); - char str[64]; - - if (mvec_name) { - const char *end; - size_t len; - - mvec_name += 8; - end = strchr (mvec_name, ' '); - if (end) - len = end - mvec_name; - else - len = strlen (mvec_name); - len = min(len, sizeof (str) - 1); - strncpy (str, mvec_name, len); - str[len] = '\0'; - mvec_name = str; - } else - mvec_name = acpi_get_sysname(); - machvec_init(mvec_name); - } + machvec_init(NULL); #endif if (early_console_setup(*cmdline_p) == 0) mark_bsp_online(); - parse_early_param(); #ifdef CONFIG_ACPI /* Initialize the ACPI boot-time table parser */ acpi_table_init(); @@ -493,7 +481,7 @@ setup_arch (char **cmdline_p) #endif /* enable IA-64 Machine Check Abort Handling unless disabled */ - if (!strstr(saved_command_line, "nomca")) + if (!nomca) ia64_mca_init(); platform_setup(cmdline_p); |