diff options
Diffstat (limited to 'kernel/arch/parisc/kernel/setup.c')
| -rw-r--r-- | kernel/arch/parisc/kernel/setup.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/arch/parisc/kernel/setup.c b/kernel/arch/parisc/kernel/setup.c index f7ea626e2..2e66a8877 100644 --- a/kernel/arch/parisc/kernel/setup.c +++ b/kernel/arch/parisc/kernel/setup.c @@ -38,6 +38,7 @@ #include <linux/export.h> #include <asm/processor.h> +#include <asm/sections.h> #include <asm/pdc.h> #include <asm/led.h> #include <asm/machdep.h> /* for pa7300lc_init() proto */ @@ -140,6 +141,13 @@ void __init setup_arch(char **cmdline_p) #endif printk(KERN_CONT ".\n"); + /* + * Check if initial kernel page mappings are sufficient. + * panic early if not, else we may access kernel functions + * and variables which can't be reached. + */ + if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE) + panic("KERNEL_INITIAL_ORDER too small!"); pdc_console_init(); @@ -326,6 +334,10 @@ static int __init parisc_init(void) /* tell PDC we're Linux. Nevermind failure. */ pdc_stable_write(0x40, &osid, sizeof(osid)); + /* start with known state */ + flush_cache_all_local(); + flush_tlb_all_local(NULL); + processor_init(); #ifdef CONFIG_SMP pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n", |