diff options
Diffstat (limited to 'arch/ppc64/kernel/setup.c')
| -rw-r--r-- | arch/ppc64/kernel/setup.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c index e0c547a9cfd31..21c57f539c293 100644 --- a/arch/ppc64/kernel/setup.c +++ b/arch/ppc64/kernel/setup.c @@ -636,12 +636,11 @@ void __init setup_system(void) early_console_initialized = 1; register_console(&udbg_console); -#endif /* !CONFIG_PPC_ISERIES */ - /* Save unparsed command line copy for /proc/cmdline */ strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE); parse_early_param(); +#endif /* !CONFIG_PPC_ISERIES */ #if defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES) /* @@ -800,20 +799,31 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; -#if 0 /* XXX not currently used */ +/* + * These three variables are used to save values passed to us by prom_init() + * via the device tree. The TCE variables are needed because with a memory_limit + * in force we may need to explicitly map the TCE are at the top of RAM. + */ unsigned long memory_limit; +unsigned long tce_alloc_start; +unsigned long tce_alloc_end; +#ifdef CONFIG_PPC_ISERIES +/* + * On iSeries we just parse the mem=X option from the command line. + * On pSeries it's a bit more complicated, see prom_init_mem() + */ static int __init early_parsemem(char *p) { if (!p) return 0; - memory_limit = memparse(p, &p); + memory_limit = ALIGN(memparse(p, &p), PAGE_SIZE); return 0; } early_param("mem", early_parsemem); -#endif +#endif /* CONFIG_PPC_ISERIES */ #ifdef CONFIG_PPC_MULTIPLATFORM static int __init set_preferred_console(void) |