nop
.size sun4v_ncs_request, .-sun4v_ncs_request
- .globl sun4v_scv_send
- .type sun4v_scv_send,#function
-sun4v_scv_send:
+ .globl sun4v_svc_send
+ .type sun4v_svc_send,#function
+sun4v_svc_send:
save %sp, -192, %sp
mov %i0, %o0
mov %i1, %o1
stx %o1, [%i3]
ret
restore
- .size sun4v_scv_send, .-sun4v_scv_send
+ .size sun4v_svc_send, .-sun4v_svc_send
- .globl sun4v_scv_recv
- .type sun4v_scv_recv,#function
-sun4v_scv_recv:
+ .globl sun4v_svc_recv
+ .type sun4v_svc_recv,#function
+sun4v_svc_recv:
save %sp, -192, %sp
mov %i0, %o0
mov %i1, %o1
stx %o1, [%i3]
ret
restore
- .size sun4v_scv_recv, .-sun4v_scv_recv
+ .size sun4v_svc_recv, .-sun4v_svc_recv
- .globl sun4v_scv_getstatus
- .type sun4v_scv_getstatus,#function
-sun4v_scv_getstatus:
+ .globl sun4v_svc_getstatus
+ .type sun4v_svc_getstatus,#function
+sun4v_svc_getstatus:
mov HV_FAST_SVC_GETSTATUS, %o5
mov %o1, %o4
ta HV_FAST_TRAP
stx %o1, [%o4]
retl
nop
- .size sun4v_scv_getstatus, .-sun4v_scv_getstatus
+ .size sun4v_svc_getstatus, .-sun4v_svc_getstatus
- .globl sun4v_scv_setstatus
- .type sun4v_scv_setstatus,#function
-sun4v_scv_setstatus:
+ .globl sun4v_svc_setstatus
+ .type sun4v_svc_setstatus,#function
+sun4v_svc_setstatus:
mov HV_FAST_SVC_SETSTATUS, %o5
ta HV_FAST_TRAP
retl
nop
- .size sun4v_scv_setstatus, .-sun4v_scv_setstatus
+ .size sun4v_svc_setstatus, .-sun4v_svc_setstatus
- .globl sun4v_scv_clrstatus
- .type sun4v_scv_clrstatus,#function
-sun4v_scv_clrstatus:
+ .globl sun4v_svc_clrstatus
+ .type sun4v_svc_clrstatus,#function
+sun4v_svc_clrstatus:
mov HV_FAST_SVC_CLRSTATUS, %o5
ta HV_FAST_TRAP
retl
nop
- .size sun4v_scv_clrstatus, .-sun4v_scv_clrstatus
+ .size sun4v_svc_clrstatus, .-sun4v_svc_clrstatus
+
+ .globl sun4v_mmustat_conf
+ .type sun4v_mmustat_conf,#function
+sun4v_mmustat_conf:
+ mov %o1, %o4
+ mov HV_FAST_MMUSTAT_CONF, %o5
+ ta HV_FAST_TRAP
+ stx %o1, [%o4]
+ retl
+ nop
+ .size sun4v_mmustat_conf, .-sun4v_mmustat_conf
+
+ .globl sun4v_mmustat_info
+ .type sun4v_mmustat_info,#function
+sun4v_mmustat_info:
+ mov %o0, %o4
+ mov HV_FAST_MMUSTAT_INFO, %o5
+ ta HV_FAST_TRAP
+ stx %o1, [%o4]
+ retl
+ nop
+ .size sun4v_mmustat_info, .-sun4v_mmustat_info
--- /dev/null
+/* sysfs.c: Toplogy sysfs support code for sparc64.
+ *
+ * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/sysdev.h>
+#include <linux/cpu.h>
+#include <linux/smp.h>
+#include <linux/percpu.h>
+#include <linux/init.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 sys_device *dev, char *buf) \
+{ \
+ struct hv_mmu_statistics *p = &per_cpu(mmu_stats, dev->id); \
+ return sprintf(buf, "%lu\n", p->NAME); \
+} \
+static SYSDEV_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[] = {
+ &attr_immu_tsb_hits_ctx0_8k_tte.attr,
+ &attr_immu_tsb_ticks_ctx0_8k_tte.attr,
+ &attr_immu_tsb_hits_ctx0_64k_tte.attr,
+ &attr_immu_tsb_ticks_ctx0_64k_tte.attr,
+ &attr_immu_tsb_hits_ctx0_4mb_tte.attr,
+ &attr_immu_tsb_ticks_ctx0_4mb_tte.attr,
+ &attr_immu_tsb_hits_ctx0_256mb_tte.attr,
+ &attr_immu_tsb_ticks_ctx0_256mb_tte.attr,
+ &attr_immu_tsb_hits_ctxnon0_8k_tte.attr,
+ &attr_immu_tsb_ticks_ctxnon0_8k_tte.attr,
+ &attr_immu_tsb_hits_ctxnon0_64k_tte.attr,
+ &attr_immu_tsb_ticks_ctxnon0_64k_tte.attr,
+ &attr_immu_tsb_hits_ctxnon0_4mb_tte.attr,
+ &attr_immu_tsb_ticks_ctxnon0_4mb_tte.attr,
+ &attr_immu_tsb_hits_ctxnon0_256mb_tte.attr,
+ &attr_immu_tsb_ticks_ctxnon0_256mb_tte.attr,
+ &attr_dmmu_tsb_hits_ctx0_8k_tte.attr,
+ &attr_dmmu_tsb_ticks_ctx0_8k_tte.attr,
+ &attr_dmmu_tsb_hits_ctx0_64k_tte.attr,
+ &attr_dmmu_tsb_ticks_ctx0_64k_tte.attr,
+ &attr_dmmu_tsb_hits_ctx0_4mb_tte.attr,
+ &attr_dmmu_tsb_ticks_ctx0_4mb_tte.attr,
+ &attr_dmmu_tsb_hits_ctx0_256mb_tte.attr,
+ &attr_dmmu_tsb_ticks_ctx0_256mb_tte.attr,
+ &attr_dmmu_tsb_hits_ctxnon0_8k_tte.attr,
+ &attr_dmmu_tsb_ticks_ctxnon0_8k_tte.attr,
+ &attr_dmmu_tsb_hits_ctxnon0_64k_tte.attr,
+ &attr_dmmu_tsb_ticks_ctxnon0_64k_tte.attr,
+ &attr_dmmu_tsb_hits_ctxnon0_4mb_tte.attr,
+ &attr_dmmu_tsb_ticks_ctxnon0_4mb_tte.attr,
+ &attr_dmmu_tsb_hits_ctxnon0_256mb_tte.attr,
+ &attr_dmmu_tsb_ticks_ctxnon0_256mb_tte.attr,
+ NULL,
+};
+
+static struct attribute_group mmu_stat_group = {
+ .attrs = mmu_stat_attrs,
+ .name = "mmu_stats",
+};
+
+/* XXX convert to rusty's on_one_cpu */
+static unsigned long run_on_cpu(unsigned long cpu,
+ unsigned long (*func)(unsigned long),
+ unsigned long arg)
+{
+ cpumask_t old_affinity = current->cpus_allowed;
+ unsigned long ret;
+
+ /* should return -EINVAL to userspace */
+ if (set_cpus_allowed(current, cpumask_of_cpu(cpu)))
+ return 0;
+
+ ret = func(arg);
+
+ set_cpus_allowed(current, old_affinity);
+
+ return ret;
+}
+
+static unsigned long read_mmustat_enable(unsigned long junk)
+{
+ unsigned long ra = 0;
+
+ sun4v_mmustat_info(&ra);
+
+ return ra != 0;
+}
+
+static unsigned long write_mmustat_enable(unsigned long val)
+{
+ unsigned long ra, orig_ra;
+
+ 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 sys_device *s, char *buf)
+{
+ unsigned long val = run_on_cpu(s->id, read_mmustat_enable, 0);
+ return sprintf(buf, "%lx\n", val);
+}
+
+static ssize_t store_mmustat_enable(struct sys_device *s, const char *buf, size_t count)
+{
+ unsigned long val, err;
+ int ret = sscanf(buf, "%ld", &val);
+
+ if (ret != 1)
+ return -EINVAL;
+
+ err = run_on_cpu(s->id, write_mmustat_enable, val);
+ if (err)
+ return -EIO;
+
+ return count;
+}
+
+static SYSDEV_ATTR(mmustat_enable, 0644, show_mmustat_enable, store_mmustat_enable);
+
+static int mmu_stats_supported;
+
+static int register_mmu_stats(struct sys_device *s)
+{
+ if (!mmu_stats_supported)
+ return 0;
+ sysdev_create_file(s, &attr_mmustat_enable);
+ return sysfs_create_group(&s->kobj, &mmu_stat_group);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static void unregister_mmu_stats(struct sys_device *s)
+{
+ if (!mmu_stats_supported)
+ return;
+ sysfs_remove_group(&s->kobj, &mmu_stat_group);
+ sysdev_remove_file(s, &attr_mmustat_enable);
+}
+#endif
+
+#define SHOW_CPUDATA_ULONG_NAME(NAME, MEMBER) \
+static ssize_t show_##NAME(struct sys_device *dev, 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 sys_device *dev, 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_ULONG_NAME(udelay_val, udelay_val);
+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 sysdev_attribute cpu_core_attrs[] = {
+ _SYSDEV_ATTR(clock_tick, 0444, show_clock_tick, NULL),
+ _SYSDEV_ATTR(udelay_val, 0444, show_udelay_val, NULL),
+ _SYSDEV_ATTR(l1_dcache_size, 0444, show_l1_dcache_size, NULL),
+ _SYSDEV_ATTR(l1_dcache_line_size, 0444, show_l1_dcache_line_size, NULL),
+ _SYSDEV_ATTR(l1_icache_size, 0444, show_l1_icache_size, NULL),
+ _SYSDEV_ATTR(l1_icache_line_size, 0444, show_l1_icache_line_size, NULL),
+ _SYSDEV_ATTR(l2_cache_size, 0444, show_l2_cache_size, NULL),
+ _SYSDEV_ATTR(l2_cache_line_size, 0444, show_l2_cache_line_size, NULL),
+};
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+static void register_cpu_online(unsigned int cpu)
+{
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+ struct sys_device *s = &c->sysdev;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cpu_core_attrs); i++)
+ sysdev_create_file(s, &cpu_core_attrs[i]);
+
+ register_mmu_stats(s);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static void unregister_cpu_online(unsigned int cpu)
+{
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+ struct sys_device *s = &c->sysdev;
+ int i;
+
+ unregister_mmu_stats(s);
+ for (i = 0; i < ARRAY_SIZE(cpu_core_attrs); i++)
+ sysdev_remove_file(s, &cpu_core_attrs[i]);
+}
+#endif
+
+static int __cpuinit sysfs_cpu_notify(struct notifier_block *self,
+ unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (unsigned int)(long)hcpu;
+
+ switch (action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ register_cpu_online(cpu);
+ break;
+#ifdef CONFIG_HOTPLUG_CPU
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ unregister_cpu_online(cpu);
+ break;
+#endif
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block __cpuinitdata sysfs_cpu_nb = {
+ .notifier_call = sysfs_cpu_notify,
+};
+
+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 int __init topology_init(void)
+{
+ int cpu;
+
+ check_mmu_stats();
+
+ register_cpu_notifier(&sysfs_cpu_nb);
+
+ for_each_possible_cpu(cpu) {
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+ register_cpu(c, cpu);
+ if (cpu_online(cpu))
+ register_cpu_online(cpu);
+ }
+
+ return 0;
+}
+
+subsys_initcall(topology_init);
projects / karo-tx-linux.git / commitdiff