diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/topology.h | 8 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/topology.c | 100 |
3 files changed, 47 insertions, 62 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index c4fbb9527c5c..9454231c9f23 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -51,14 +51,6 @@ static inline void topology_expect_change(void) { } #define POLARIZATION_VM (2) #define POLARIZATION_VH (3) -#ifdef CONFIG_SCHED_BOOK -void s390_init_cpu_topology(void); -#else -static inline void s390_init_cpu_topology(void) -{ -}; -#endif - #include <asm-generic/topology.h> #endif /* _ASM_S390_TOPOLOGY_H */ diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index bfac77ada4f2..a5ea8bc17cb3 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -909,7 +909,6 @@ void __init setup_arch(char **cmdline_p) setup_lowcore(); smp_fill_possible_mask(); cpu_init(); - s390_init_cpu_topology(); /* * Setup capabilities (ELF_HWCAP & ELF_PLATFORM). diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 24ee33f1af24..d2303f6340ab 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -7,14 +7,14 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/workqueue.h> -#include <linux/bootmem.h> #include <linux/cpuset.h> #include <linux/device.h> #include <linux/export.h> #include <linux/kernel.h> #include <linux/sched.h> -#include <linux/init.h> #include <linux/delay.h> +#include <linux/init.h> +#include <linux/slab.h> #include <linux/cpu.h> #include <linux/smp.h> #include <linux/mm.h> @@ -334,50 +334,6 @@ void topology_expect_change(void) set_topology_timer(); } -static int __init early_parse_topology(char *p) -{ - if (strncmp(p, "off", 3)) - return 0; - topology_enabled = 0; - return 0; -} -early_param("topology", early_parse_topology); - -static void __init alloc_masks(struct sysinfo_15_1_x *info, - struct mask_info *mask, int offset) -{ - int i, nr_masks; - - nr_masks = info->mag[TOPOLOGY_NR_MAG - offset]; - for (i = 0; i < info->mnest - offset; i++) - nr_masks *= info->mag[TOPOLOGY_NR_MAG - offset - 1 - i]; - nr_masks = max(nr_masks, 1); - for (i = 0; i < nr_masks; i++) { - mask->next = alloc_bootmem_align( - roundup_pow_of_two(sizeof(struct mask_info)), - roundup_pow_of_two(sizeof(struct mask_info))); - mask = mask->next; - } -} - -void __init s390_init_cpu_topology(void) -{ - struct sysinfo_15_1_x *info; - int i; - - if (!MACHINE_HAS_TOPOLOGY) - return; - tl_info = alloc_bootmem_pages(PAGE_SIZE); - info = tl_info; - store_topology(info); - pr_info("The CPU configuration topology of the machine is:"); - for (i = 0; i < TOPOLOGY_NR_MAG; i++) - printk(KERN_CONT " %d", info->mag[i]); - printk(KERN_CONT " / %d\n", info->mnest); - alloc_masks(info, &socket_info, 1); - alloc_masks(info, &book_info, 2); -} - static int cpu_management; static ssize_t dispatching_show(struct device *dev, @@ -481,6 +437,15 @@ static const struct cpumask *cpu_book_mask(int cpu) return &cpu_topology[cpu].book_mask; } +static int __init early_parse_topology(char *p) +{ + if (strncmp(p, "off", 3)) + return 0; + topology_enabled = 0; + return 0; +} +early_param("topology", early_parse_topology); + static struct sched_domain_topology_level s390_topology[] = { { cpu_thread_mask, cpu_smt_flags, SD_INIT_NAME(SMT) }, { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) }, @@ -489,6 +454,42 @@ static struct sched_domain_topology_level s390_topology[] = { { NULL, }, }; +static void __init alloc_masks(struct sysinfo_15_1_x *info, + struct mask_info *mask, int offset) +{ + int i, nr_masks; + + nr_masks = info->mag[TOPOLOGY_NR_MAG - offset]; + for (i = 0; i < info->mnest - offset; i++) + nr_masks *= info->mag[TOPOLOGY_NR_MAG - offset - 1 - i]; + nr_masks = max(nr_masks, 1); + for (i = 0; i < nr_masks; i++) { + mask->next = kzalloc(sizeof(*mask->next), GFP_KERNEL); + mask = mask->next; + } +} + +static int __init s390_topology_init(void) +{ + struct sysinfo_15_1_x *info; + int i; + + if (!MACHINE_HAS_TOPOLOGY) + return 0; + tl_info = (struct sysinfo_15_1_x *)__get_free_page(GFP_KERNEL); + info = tl_info; + store_topology(info); + pr_info("The CPU configuration topology of the machine is:"); + for (i = 0; i < TOPOLOGY_NR_MAG; i++) + printk(KERN_CONT " %d", info->mag[i]); + printk(KERN_CONT " / %d\n", info->mnest); + alloc_masks(info, &socket_info, 1); + alloc_masks(info, &book_info, 2); + set_sched_topology(s390_topology); + return 0; +} +early_initcall(s390_topology_init); + static int __init topology_init(void) { if (MACHINE_HAS_TOPOLOGY) @@ -498,10 +499,3 @@ static int __init topology_init(void) return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching); } device_initcall(topology_init); - -static int __init early_topology_init(void) -{ - set_sched_topology(s390_topology); - return 0; -} -early_initcall(early_topology_init); |
