diff options
Diffstat (limited to 'arch/powerpc/platforms/iseries/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/iseries/setup.c | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index 1544c6f10a3..fda712b4216 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -27,6 +27,7 @@ #include <linux/kdev_t.h> #include <linux/major.h> #include <linux/root_dev.h> +#include <linux/kernel.h> #include <asm/processor.h> #include <asm/machdep.h> @@ -40,19 +41,19 @@ #include <asm/firmware.h> #include <asm/time.h> -#include <asm/naca.h> #include <asm/paca.h> #include <asm/cache.h> #include <asm/sections.h> #include <asm/abs_addr.h> -#include <asm/iSeries/HvLpConfig.h> -#include <asm/iSeries/HvCallEvent.h> -#include <asm/iSeries/HvCallXm.h> -#include <asm/iSeries/ItLpQueue.h> -#include <asm/iSeries/mf.h> -#include <asm/iSeries/HvLpEvent.h> -#include <asm/iSeries/LparMap.h> - +#include <asm/iseries/hv_lp_config.h> +#include <asm/iseries/hv_call_event.h> +#include <asm/iseries/hv_call_xm.h> +#include <asm/iseries/it_lp_queue.h> +#include <asm/iseries/mf.h> +#include <asm/iseries/hv_lp_event.h> +#include <asm/iseries/lpar_map.h> + +#include "naca.h" #include "setup.h" #include "irq.h" #include "vpd_areas.h" @@ -94,6 +95,8 @@ extern unsigned long iSeries_recal_titan; static int mf_initialized; +static unsigned long cmd_mem_limit; + struct MemoryBlock { unsigned long absStart; unsigned long absEnd; @@ -341,23 +344,6 @@ static void __init iSeries_init_early(void) */ iommu_init_early_iSeries(); - iSeries_get_cmdline(); - - /* Save unparsed command line copy for /proc/cmdline */ - strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE); - - /* Parse early parameters, in particular mem=x */ - parse_early_param(); - - if (memory_limit) { - if (memory_limit < systemcfg->physicalMemorySize) - systemcfg->physicalMemorySize = memory_limit; - else { - printk("Ignoring mem=%lu >= ram_top.\n", memory_limit); - memory_limit = 0; - } - } - /* Initialize machine-dependency vectors */ #ifdef CONFIG_SMP smp_init_iSeries(); @@ -971,6 +957,8 @@ void build_flat_dt(struct iseries_flat_dt *dt) /* /chosen */ dt_start_node(dt, "chosen"); dt_prop_u32(dt, "linux,platform", PLATFORM_ISERIES_LPAR); + if (cmd_mem_limit) + dt_prop_u64(dt, "linux,memory-limit", cmd_mem_limit); dt_end_node(dt); dt_cpus(dt); @@ -990,7 +978,27 @@ void * __init iSeries_early_setup(void) */ build_iSeries_Memory_Map(); + iSeries_get_cmdline(); + + /* Save unparsed command line copy for /proc/cmdline */ + strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE); + + /* Parse early parameters, in particular mem=x */ + parse_early_param(); + build_flat_dt(&iseries_dt); return (void *) __pa(&iseries_dt); } + +/* + * 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) + cmd_mem_limit = ALIGN(memparse(p, &p), PAGE_SIZE); + return 0; +} +early_param("mem", early_parsemem); |