| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| David S. Miller | 1033 | 88.90% | 4 | 28.57% |
| Kay Sievers | 61 | 5.25% | 1 | 7.14% |
| Sebastian Andrzej Siewior | 25 | 2.15% | 1 | 7.14% |
| Thomas Gleixner | 23 | 1.98% | 1 | 7.14% |
| Andi Kleen | 8 | 0.69% | 1 | 7.14% |
| Srivatsa S. Bhat | 3 | 0.26% | 1 | 7.14% |
| Sam Ravnborg | 3 | 0.26% | 1 | 7.14% |
| Alexey Dobriyan | 3 | 0.26% | 1 | 7.14% |
| Adam Buchbinder | 1 | 0.09% | 1 | 7.14% |
| Toralf Förster | 1 | 0.09% | 1 | 7.14% |
| Greg Kroah-Hartman | 1 | 0.09% | 1 | 7.14% |
| Total | 1162 | 14 |
// SPDX-License-Identifier: GPL-2.0 /* sysfs.c: Topology sysfs support code for sparc64. * * Copyright (C) 2007 David S. Miller <davem@davemloft.net> */ #include <linux/sched.h> #include <linux/device.h> #include <linux/cpu.h> #include <linux/smp.h> #include <linux/percpu.h> #include <linux/init.h> #include <asm/cpudata.h> #include <asm/hypervisor.h> #include <asm/spitfire.h> static DEFINE_PER_CPU(struct hv_mmu_statistics, mmu_stats) __attribute__((aligned(64))); #define SHOW_MMUSTAT_ULONG(NAME) \ static ssize_t show_##NAME(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct hv_mmu_statistics *p = &per_cpu(mmu_stats, dev->id); \ return sprintf(buf, "%lu\n", p->NAME); \ } \ static DEVICE_ATTR(NAME, 0444, show_##NAME, NULL) SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_8k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_8k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_64k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_64k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_4mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_4mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_256mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_256mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_8k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_8k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_64k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_64k_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_4mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_4mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_256mb_tte); SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_256mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_8k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_8k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_64k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_64k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_4mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_4mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_256mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_256mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_8k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_8k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_64k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_64k_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_4mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_4mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_256mb_tte); SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_256mb_tte); static struct attribute *mmu_stat_attrs[] = { &dev_attr_immu_tsb_hits_ctx0_8k_tte.attr, &dev_attr_immu_tsb_ticks_ctx0_8k_tte.attr, &dev_attr_immu_tsb_hits_ctx0_64k_tte.attr, &dev_attr_immu_tsb_ticks_ctx0_64k_tte.attr, &dev_attr_immu_tsb_hits_ctx0_4mb_tte.attr, &dev_attr_immu_tsb_ticks_ctx0_4mb_tte.attr, &dev_attr_immu_tsb_hits_ctx0_256mb_tte.attr, &dev_attr_immu_tsb_ticks_ctx0_256mb_tte.attr, &dev_attr_immu_tsb_hits_ctxnon0_8k_tte.attr, &dev_attr_immu_tsb_ticks_ctxnon0_8k_tte.attr, &dev_attr_immu_tsb_hits_ctxnon0_64k_tte.attr, &dev_attr_immu_tsb_ticks_ctxnon0_64k_tte.attr, &dev_attr_immu_tsb_hits_ctxnon0_4mb_tte.attr, &dev_attr_immu_tsb_ticks_ctxnon0_4mb_tte.attr, &dev_attr_immu_tsb_hits_ctxnon0_256mb_tte.attr, &dev_attr_immu_tsb_ticks_ctxnon0_256mb_tte.attr, &dev_attr_dmmu_tsb_hits_ctx0_8k_tte.attr, &dev_attr_dmmu_tsb_ticks_ctx0_8k_tte.attr, &dev_attr_dmmu_tsb_hits_ctx0_64k_tte.attr, &dev_attr_dmmu_tsb_ticks_ctx0_64k_tte.attr, &dev_attr_dmmu_tsb_hits_ctx0_4mb_tte.attr, &dev_attr_dmmu_tsb_ticks_ctx0_4mb_tte.attr, &dev_attr_dmmu_tsb_hits_ctx0_256mb_tte.attr, &dev_attr_dmmu_tsb_ticks_ctx0_256mb_tte.attr, &dev_attr_dmmu_tsb_hits_ctxnon0_8k_tte.attr, &dev_attr_dmmu_tsb_ticks_ctxnon0_8k_tte.attr, &dev_attr_dmmu_tsb_hits_ctxnon0_64k_tte.attr, &dev_attr_dmmu_tsb_ticks_ctxnon0_64k_tte.attr, &dev_attr_dmmu_tsb_hits_ctxnon0_4mb_tte.attr, &dev_attr_dmmu_tsb_ticks_ctxnon0_4mb_tte.attr, &dev_attr_dmmu_tsb_hits_ctxnon0_256mb_tte.attr, &dev_attr_dmmu_tsb_ticks_ctxnon0_256mb_tte.attr, NULL, }; static struct attribute_group mmu_stat_group = { .attrs = mmu_stat_attrs, .name = "mmu_stats", }; static long read_mmustat_enable(void *data __maybe_unused) { unsigned long ra = 0; sun4v_mmustat_info(&ra); return ra != 0; } static long write_mmustat_enable(void *data) { unsigned long ra, orig_ra, *val = data; if (*val) ra = __pa(&per_cpu(mmu_stats, smp_processor_id())); else ra = 0UL; return sun4v_mmustat_conf(ra, &orig_ra); } static ssize_t show_mmustat_enable(struct device *s, struct device_attribute *attr, char *buf) { long val = work_on_cpu(s->id, read_mmustat_enable, NULL); return sprintf(buf, "%lx\n", val); } static ssize_t store_mmustat_enable(struct device *s, struct device_attribute *attr, const char *buf, size_t count) { unsigned long val; long err; int ret; ret = sscanf(buf, "%lu", &val); if (ret != 1) return -EINVAL; err = work_on_cpu(s->id, write_mmustat_enable, &val); if (err) return -EIO; return count; } static DEVICE_ATTR(mmustat_enable, 0644, show_mmustat_enable, store_mmustat_enable); static int mmu_stats_supported; static int register_mmu_stats(struct device *s) { if (!mmu_stats_supported) return 0; device_create_file(s, &dev_attr_mmustat_enable); return sysfs_create_group(&s->kobj, &mmu_stat_group); } #ifdef CONFIG_HOTPLUG_CPU static void unregister_mmu_stats(struct device *s) { if (!mmu_stats_supported) return; sysfs_remove_group(&s->kobj, &mmu_stat_group); device_remove_file(s, &dev_attr_mmustat_enable); } #endif #define SHOW_CPUDATA_ULONG_NAME(NAME, MEMBER) \ static ssize_t show_##NAME(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ cpuinfo_sparc *c = &cpu_data(dev->id); \ return sprintf(buf, "%lu\n", c->MEMBER); \ } #define SHOW_CPUDATA_UINT_NAME(NAME, MEMBER) \ static ssize_t show_##NAME(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ cpuinfo_sparc *c = &cpu_data(dev->id); \ return sprintf(buf, "%u\n", c->MEMBER); \ } SHOW_CPUDATA_ULONG_NAME(clock_tick, clock_tick); SHOW_CPUDATA_UINT_NAME(l1_dcache_size, dcache_size); SHOW_CPUDATA_UINT_NAME(l1_dcache_line_size, dcache_line_size); SHOW_CPUDATA_UINT_NAME(l1_icache_size, icache_size); SHOW_CPUDATA_UINT_NAME(l1_icache_line_size, icache_line_size); SHOW_CPUDATA_UINT_NAME(l2_cache_size, ecache_size); SHOW_CPUDATA_UINT_NAME(l2_cache_line_size, ecache_line_size); static struct device_attribute cpu_core_attrs[] = { __ATTR(clock_tick, 0444, show_clock_tick, NULL), __ATTR(l1_dcache_size, 0444, show_l1_dcache_size, NULL), __ATTR(l1_dcache_line_size, 0444, show_l1_dcache_line_size, NULL), __ATTR(l1_icache_size, 0444, show_l1_icache_size, NULL), __ATTR(l1_icache_line_size, 0444, show_l1_icache_line_size, NULL), __ATTR(l2_cache_size, 0444, show_l2_cache_size, NULL), __ATTR(l2_cache_line_size, 0444, show_l2_cache_line_size, NULL), }; static DEFINE_PER_CPU(struct cpu, cpu_devices); static int register_cpu_online(unsigned int cpu) { struct cpu *c = &per_cpu(cpu_devices, cpu); struct device *s = &c->dev; int i; for (i = 0; i < ARRAY_SIZE(cpu_core_attrs); i++) device_create_file(s, &cpu_core_attrs[i]); register_mmu_stats(s); return 0; } static int unregister_cpu_online(unsigned int cpu) { #ifdef CONFIG_HOTPLUG_CPU struct cpu *c = &per_cpu(cpu_devices, cpu); struct device *s = &c->dev; int i; unregister_mmu_stats(s); for (i = 0; i < ARRAY_SIZE(cpu_core_attrs); i++) device_remove_file(s, &cpu_core_attrs[i]); #endif return 0; } static void __init check_mmu_stats(void) { unsigned long dummy1, err; if (tlb_type != hypervisor) return; err = sun4v_mmustat_info(&dummy1); if (!err) mmu_stats_supported = 1; } static void register_nodes(void) { #ifdef CONFIG_NUMA int i; for (i = 0; i < MAX_NUMNODES; i++) register_one_node(i); #endif } static int __init topology_init(void) { int cpu, ret; register_nodes(); check_mmu_stats(); for_each_possible_cpu(cpu) { struct cpu *c = &per_cpu(cpu_devices, cpu); register_cpu(c, cpu); } ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "sparc/topology:online", register_cpu_online, unregister_cpu_online); WARN_ON(ret < 0); return 0; } subsys_initcall(topology_init);
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