diff options
Diffstat (limited to 'arch/tile/kernel/setup.c')
| -rw-r--r-- | arch/tile/kernel/setup.c | 52 |
1 files changed, 37 insertions, 15 deletions
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 5f85d8b34dbb..98d80eb49ddb 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -61,6 +61,22 @@ unsigned long __initdata node_free_pfn[MAX_NUMNODES]; static unsigned long __initdata node_percpu[MAX_NUMNODES]; +/* + * per-CPU stack and boot info. + */ +DEFINE_PER_CPU(unsigned long, boot_sp) = + (unsigned long)init_stack + THREAD_SIZE; + +#ifdef CONFIG_SMP +DEFINE_PER_CPU(unsigned long, boot_pc) = (unsigned long)start_kernel; +#else +/* + * The variable must be __initdata since it references __init code. + * With CONFIG_SMP it is per-cpu data, which is exempt from validation. + */ +unsigned long __initdata boot_pc = (unsigned long)start_kernel; +#endif + #ifdef CONFIG_HIGHMEM /* Page frame index of end of lowmem on each controller. */ unsigned long __cpuinitdata node_lowmem_end_pfn[MAX_NUMNODES]; @@ -103,13 +119,11 @@ unsigned long __initdata pci_reserve_end_pfn = -1U; static int __init setup_maxmem(char *str) { - long maxmem_mb; - if (str == NULL || strict_strtol(str, 0, &maxmem_mb) != 0 || - maxmem_mb == 0) + unsigned long long maxmem; + if (str == NULL || (maxmem = memparse(str, NULL)) == 0) return -EINVAL; - maxmem_pfn = (maxmem_mb >> (HPAGE_SHIFT - 20)) << - (HPAGE_SHIFT - PAGE_SHIFT); + maxmem_pfn = (maxmem >> HPAGE_SHIFT) << (HPAGE_SHIFT - PAGE_SHIFT); pr_info("Forcing RAM used to no more than %dMB\n", maxmem_pfn >> (20 - PAGE_SHIFT)); return 0; @@ -119,14 +133,15 @@ early_param("maxmem", setup_maxmem); static int __init setup_maxnodemem(char *str) { char *endp; - long maxnodemem_mb, node; + unsigned long long maxnodemem; + long node; node = str ? simple_strtoul(str, &endp, 0) : INT_MAX; - if (node >= MAX_NUMNODES || *endp != ':' || - strict_strtol(endp+1, 0, &maxnodemem_mb) != 0) + if (node >= MAX_NUMNODES || *endp != ':') return -EINVAL; - maxnodemem_pfn[node] = (maxnodemem_mb >> (HPAGE_SHIFT - 20)) << + maxnodemem = memparse(endp+1, NULL); + maxnodemem_pfn[node] = (maxnodemem >> HPAGE_SHIFT) << (HPAGE_SHIFT - PAGE_SHIFT); pr_info("Forcing RAM used on node %ld to no more than %dMB\n", node, maxnodemem_pfn[node] >> (20 - PAGE_SHIFT)); @@ -913,6 +928,13 @@ void __cpuinit setup_cpu(int boot) #ifdef CONFIG_BLK_DEV_INITRD +/* + * Note that the kernel can potentially support other compression + * techniques than gz, though we don't do so by default. If we ever + * decide to do so we can either look for other filename extensions, + * or just allow a file with this name to be compressed with an + * arbitrary compressor (somewhat counterintuitively). + */ static int __initdata set_initramfs_file; static char __initdata initramfs_file[128] = "initramfs.cpio.gz"; @@ -928,9 +950,9 @@ static int __init setup_initramfs_file(char *str) early_param("initramfs_file", setup_initramfs_file); /* - * We look for an additional "initramfs.cpio.gz" file in the hvfs. + * We look for an "initramfs.cpio.gz" file in the hvfs. * If there is one, we allocate some memory for it and it will be - * unpacked to the initramfs after any built-in initramfs_data. + * unpacked to the initramfs. */ static void __init load_hv_initrd(void) { @@ -1100,7 +1122,7 @@ EXPORT_SYMBOL(hash_for_home_map); /* * cpu_cacheable_map lists all the cpus whose caches the hypervisor can - * flush on our behalf. It is set to cpu_possible_map OR'ed with + * flush on our behalf. It is set to cpu_possible_mask OR'ed with * hash_for_home_map, and it is what should be passed to * hv_flush_remote() to flush all caches. Note that if there are * dedicated hypervisor driver tiles that have authorized use of their @@ -1186,7 +1208,7 @@ static void __init setup_cpu_maps(void) sizeof(cpu_lotar_map)); if (rc < 0) { pr_err("warning: no HV_INQ_TILES_LOTAR; using AVAIL\n"); - cpu_lotar_map = cpu_possible_map; + cpu_lotar_map = *cpu_possible_mask; } #if CHIP_HAS_CBOX_HOME_MAP() @@ -1196,9 +1218,9 @@ static void __init setup_cpu_maps(void) sizeof(hash_for_home_map)); if (rc < 0) early_panic("hv_inquire_tiles(HFH_CACHE) failed: rc %d\n", rc); - cpumask_or(&cpu_cacheable_map, &cpu_possible_map, &hash_for_home_map); + cpumask_or(&cpu_cacheable_map, cpu_possible_mask, &hash_for_home_map); #else - cpu_cacheable_map = cpu_possible_map; + cpu_cacheable_map = *cpu_possible_mask; #endif } |