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-rw-r--r--arch/s390/include/asm/dma.h6
-rw-r--r--arch/s390/include/asm/io.h5
-rw-r--r--arch/s390/include/asm/irq.h78
-rw-r--r--arch/s390/include/uapi/asm/unistd.h3
-rw-r--r--arch/s390/kernel/compat_wrapper.S6
-rw-r--r--arch/s390/kernel/debug.c11
-rw-r--r--arch/s390/kernel/irq.c124
-rw-r--r--arch/s390/kernel/nmi.c2
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c2
-rw-r--r--arch/s390/kernel/runtime_instr.c2
-rw-r--r--arch/s390/kernel/setup.c3
-rw-r--r--arch/s390/kernel/smp.c12
-rw-r--r--arch/s390/kernel/syscalls.S1
-rw-r--r--arch/s390/kernel/time.c4
-rw-r--r--arch/s390/kernel/topology.c2
-rw-r--r--arch/s390/mm/fault.c2
-rw-r--r--arch/s390/oprofile/hwsampler.c2
-rw-r--r--arch/s390/pci/pci.c33
-rw-r--r--arch/s390/pci/pci_dma.c2
19 files changed, 170 insertions, 130 deletions
diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h
index de015d85e3e5..bb9bdcd20864 100644
--- a/arch/s390/include/asm/dma.h
+++ b/arch/s390/include/asm/dma.h
@@ -10,4 +10,10 @@
*/
#define MAX_DMA_ADDRESS 0x80000000
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy (0)
+#endif
+
#endif /* _ASM_S390_DMA_H */
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 16c3eb164f4f..27cb32185ce1 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -85,6 +85,11 @@ static inline void iounmap(volatile void __iomem *addr)
#define __raw_writel zpci_write_u32
#define __raw_writeq zpci_write_u64
+#define readb_relaxed readb
+#define readw_relaxed readw
+#define readl_relaxed readl
+#define readq_relaxed readq
+
#endif /* CONFIG_PCI */
#include <asm-generic/io.h>
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index e6972f85d2b0..7def77302d63 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -2,43 +2,61 @@
#define _ASM_IRQ_H
#include <linux/hardirq.h>
+#include <linux/percpu.h>
+#include <linux/cache.h>
#include <linux/types.h>
-enum interruption_class {
+enum interruption_main_class {
EXTERNAL_INTERRUPT,
IO_INTERRUPT,
- EXTINT_CLK,
- EXTINT_EXC,
- EXTINT_EMS,
- EXTINT_TMR,
- EXTINT_TLA,
- EXTINT_PFL,
- EXTINT_DSD,
- EXTINT_VRT,
- EXTINT_SCP,
- EXTINT_IUC,
- EXTINT_CMS,
- EXTINT_CMC,
- EXTINT_CMR,
- IOINT_CIO,
- IOINT_QAI,
- IOINT_DAS,
- IOINT_C15,
- IOINT_C70,
- IOINT_TAP,
- IOINT_VMR,
- IOINT_LCS,
- IOINT_CLW,
- IOINT_CTC,
- IOINT_APB,
- IOINT_ADM,
- IOINT_CSC,
- IOINT_PCI,
- IOINT_MSI,
+ NR_IRQS
+};
+
+enum interruption_class {
+ IRQEXT_CLK,
+ IRQEXT_EXC,
+ IRQEXT_EMS,
+ IRQEXT_TMR,
+ IRQEXT_TLA,
+ IRQEXT_PFL,
+ IRQEXT_DSD,
+ IRQEXT_VRT,
+ IRQEXT_SCP,
+ IRQEXT_IUC,
+ IRQEXT_CMS,
+ IRQEXT_CMC,
+ IRQEXT_CMR,
+ IRQIO_CIO,
+ IRQIO_QAI,
+ IRQIO_DAS,
+ IRQIO_C15,
+ IRQIO_C70,
+ IRQIO_TAP,
+ IRQIO_VMR,
+ IRQIO_LCS,
+ IRQIO_CLW,
+ IRQIO_CTC,
+ IRQIO_APB,
+ IRQIO_ADM,
+ IRQIO_CSC,
+ IRQIO_PCI,
+ IRQIO_MSI,
NMI_NMI,
- NR_IRQS,
+ CPU_RST,
+ NR_ARCH_IRQS
};
+struct irq_stat {
+ unsigned int irqs[NR_ARCH_IRQS];
+};
+
+DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
+
+static __always_inline void inc_irq_stat(enum interruption_class irq)
+{
+ __get_cpu_var(irq_stat).irqs[irq]++;
+}
+
struct ext_code {
unsigned short subcode;
unsigned short code;
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 63e6078699f1..864f693c237f 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -279,7 +279,8 @@
#define __NR_process_vm_writev 341
#define __NR_s390_runtime_instr 342
#define __NR_kcmp 343
-#define NR_syscalls 344
+#define __NR_finit_module 344
+#define NR_syscalls 345
/*
* There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 827e094a2f49..9b9a805656b5 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1659,3 +1659,9 @@ ENTRY(sys_kcmp_wrapper)
llgfr %r5,%r5 # unsigned long
llgfr %r6,%r6 # unsigned long
jg sys_kcmp
+
+ENTRY(sys_finit_module_wrapper)
+ lgfr %r2,%r2 # int
+ llgtr %r3,%r3 # const char __user *
+ lgfr %r4,%r4 # int
+ jg sys_finit_module
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index ba500d8dc392..4e8215e0d4b6 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1127,13 +1127,14 @@ debug_register_view(debug_info_t * id, struct debug_view *view)
if (i == DEBUG_MAX_VIEWS) {
pr_err("Registering view %s/%s would exceed the maximum "
"number of views %i\n", id->name, view->name, i);
- debugfs_remove(pde);
rc = -1;
} else {
id->views[i] = view;
id->debugfs_entries[i] = pde;
}
spin_unlock_irqrestore(&id->lock, flags);
+ if (rc)
+ debugfs_remove(pde);
out:
return rc;
}
@@ -1146,9 +1147,9 @@ EXPORT_SYMBOL(debug_register_view);
int
debug_unregister_view(debug_info_t * id, struct debug_view *view)
{
- int rc = 0;
- int i;
+ struct dentry *dentry = NULL;
unsigned long flags;
+ int i, rc = 0;
if (!id)
goto out;
@@ -1160,10 +1161,12 @@ debug_unregister_view(debug_info_t * id, struct debug_view *view)
if (i == DEBUG_MAX_VIEWS)
rc = -1;
else {
- debugfs_remove(id->debugfs_entries[i]);
+ dentry = id->debugfs_entries[i];
id->views[i] = NULL;
+ id->debugfs_entries[i] = NULL;
}
spin_unlock_irqrestore(&id->lock, flags);
+ debugfs_remove(dentry);
out:
return rc;
}
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index bf24293970ce..9df824ea1667 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -24,43 +24,65 @@
#include <asm/irq.h>
#include "entry.h"
+DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
+EXPORT_PER_CPU_SYMBOL_GPL(irq_stat);
+
struct irq_class {
char *name;
char *desc;
};
-static const struct irq_class intrclass_names[] = {
+/*
+ * The list of "main" irq classes on s390. This is the list of interrrupts
+ * that appear both in /proc/stat ("intr" line) and /proc/interrupts.
+ * Historically only external and I/O interrupts have been part of /proc/stat.
+ * We can't add the split external and I/O sub classes since the first field
+ * in the "intr" line in /proc/stat is supposed to be the sum of all other
+ * fields.
+ * Since the external and I/O interrupt fields are already sums we would end
+ * up with having a sum which accounts each interrupt twice.
+ */
+static const struct irq_class irqclass_main_desc[NR_IRQS] = {
[EXTERNAL_INTERRUPT] = {.name = "EXT"},
- [IO_INTERRUPT] = {.name = "I/O"},
- [EXTINT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"},
- [EXTINT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"},
- [EXTINT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"},
- [EXTINT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"},
- [EXTINT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"},
- [EXTINT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"},
- [EXTINT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"},
- [EXTINT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"},
- [EXTINT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"},
- [EXTINT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"},
- [EXTINT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"},
- [EXTINT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"},
- [EXTINT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"},
- [IOINT_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"},
- [IOINT_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"},
- [IOINT_DAS] = {.name = "DAS", .desc = "[I/O] DASD"},
- [IOINT_C15] = {.name = "C15", .desc = "[I/O] 3215"},
- [IOINT_C70] = {.name = "C70", .desc = "[I/O] 3270"},
- [IOINT_TAP] = {.name = "TAP", .desc = "[I/O] Tape"},
- [IOINT_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"},
- [IOINT_LCS] = {.name = "LCS", .desc = "[I/O] LCS"},
- [IOINT_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"},
- [IOINT_CTC] = {.name = "CTC", .desc = "[I/O] CTC"},
- [IOINT_APB] = {.name = "APB", .desc = "[I/O] AP Bus"},
- [IOINT_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"},
- [IOINT_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"},
- [IOINT_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" },
- [IOINT_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" },
+ [IO_INTERRUPT] = {.name = "I/O"}
+};
+
+/*
+ * The list of split external and I/O interrupts that appear only in
+ * /proc/interrupts.
+ * In addition this list contains non external / I/O events like NMIs.
+ */
+static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = {
+ [IRQEXT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"},
+ [IRQEXT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"},
+ [IRQEXT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"},
+ [IRQEXT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"},
+ [IRQEXT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"},
+ [IRQEXT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"},
+ [IRQEXT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"},
+ [IRQEXT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"},
+ [IRQEXT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"},
+ [IRQEXT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"},
+ [IRQEXT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"},
+ [IRQEXT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"},
+ [IRQEXT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"},
+ [IRQIO_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"},
+ [IRQIO_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"},
+ [IRQIO_DAS] = {.name = "DAS", .desc = "[I/O] DASD"},
+ [IRQIO_C15] = {.name = "C15", .desc = "[I/O] 3215"},
+ [IRQIO_C70] = {.name = "C70", .desc = "[I/O] 3270"},
+ [IRQIO_TAP] = {.name = "TAP", .desc = "[I/O] Tape"},
+ [IRQIO_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"},
+ [IRQIO_LCS] = {.name = "LCS", .desc = "[I/O] LCS"},
+ [IRQIO_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"},
+ [IRQIO_CTC] = {.name = "CTC", .desc = "[I/O] CTC"},
+ [IRQIO_APB] = {.name = "APB", .desc = "[I/O] AP Bus"},
+ [IRQIO_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"},
+ [IRQIO_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"},
+ [IRQIO_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" },
+ [IRQIO_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" },
[NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"},
+ [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"},
};
/*
@@ -68,30 +90,34 @@ static const struct irq_class intrclass_names[] = {
*/
int show_interrupts(struct seq_file *p, void *v)
{
- int i = *(loff_t *) v, j;
+ int irq = *(loff_t *) v;
+ int cpu;
get_online_cpus();
- if (i == 0) {
+ if (irq == 0) {
seq_puts(p, " ");
- for_each_online_cpu(j)
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(cpu)
+ seq_printf(p, "CPU%d ", cpu);
seq_putc(p, '\n');
}
-
- if (i < NR_IRQS) {
- seq_printf(p, "%s: ", intrclass_names[i].name);
-#ifndef CONFIG_SMP
- seq_printf(p, "%10u ", kstat_irqs(i));
-#else
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
-#endif
- if (intrclass_names[i].desc)
- seq_printf(p, " %s", intrclass_names[i].desc);
- seq_putc(p, '\n');
- }
+ if (irq < NR_IRQS) {
+ seq_printf(p, "%s: ", irqclass_main_desc[irq].name);
+ for_each_online_cpu(cpu)
+ seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[irq]);
+ seq_putc(p, '\n');
+ goto skip_arch_irqs;
+ }
+ for (irq = 0; irq < NR_ARCH_IRQS; irq++) {
+ seq_printf(p, "%s: ", irqclass_sub_desc[irq].name);
+ for_each_online_cpu(cpu)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]);
+ if (irqclass_sub_desc[irq].desc)
+ seq_printf(p, " %s", irqclass_sub_desc[irq].desc);
+ seq_putc(p, '\n');
+ }
+skip_arch_irqs:
put_online_cpus();
- return 0;
+ return 0;
}
/*
@@ -222,7 +248,7 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code,
/* Serve timer interrupts first. */
clock_comparator_work();
}
- kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
+ kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL);
if (ext_code.code != 0x1004)
__get_cpu_var(s390_idle).nohz_delay = 1;
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index a6daa5c5cdb0..7918fbea36bb 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -254,7 +254,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
int umode;
nmi_enter();
- kstat_cpu(smp_processor_id()).irqs[NMI_NMI]++;
+ inc_irq_stat(NMI_NMI);
mci = (struct mci *) &S390_lowcore.mcck_interruption_code;
mcck = &__get_cpu_var(cpu_mcck);
umode = user_mode(regs);
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index c4e7269d4a09..86ec7447e1f5 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -229,7 +229,7 @@ static void cpumf_measurement_alert(struct ext_code ext_code,
if (!(alert & CPU_MF_INT_CF_MASK))
return;
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CMC]++;
+ inc_irq_stat(IRQEXT_CMC);
cpuhw = &__get_cpu_var(cpu_hw_events);
/* Measurement alerts are shared and might happen when the PMU
diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c
index 61066f6f71a5..077a99389b07 100644
--- a/arch/s390/kernel/runtime_instr.c
+++ b/arch/s390/kernel/runtime_instr.c
@@ -71,7 +71,7 @@ static void runtime_instr_int_handler(struct ext_code ext_code,
if (!(param32 & CPU_MF_INT_RI_MASK))
return;
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CMR]++;
+ inc_irq_stat(IRQEXT_CMR);
if (!current->thread.ri_cb)
return;
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 2568590973ad..a5360de85ec7 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -16,7 +16,7 @@
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/errno.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/memblock.h>
@@ -289,6 +289,7 @@ void machine_power_off(void)
* Dummy power off function.
*/
void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL_GPL(pm_power_off);
static int __init early_parse_mem(char *p)
{
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 0b45baa55438..7433a2f9e5cc 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -433,9 +433,9 @@ static void do_ext_call_interrupt(struct ext_code ext_code,
cpu = smp_processor_id();
if (ext_code.code == 0x1202)
- kstat_cpu(cpu).irqs[EXTINT_EXC]++;
+ inc_irq_stat(IRQEXT_EXC);
else
- kstat_cpu(cpu).irqs[EXTINT_EMS]++;
+ inc_irq_stat(IRQEXT_EMS);
/*
* handle bit signal external calls
*/
@@ -623,9 +623,10 @@ static struct sclp_cpu_info *smp_get_cpu_info(void)
return info;
}
-static int smp_add_present_cpu(int cpu);
+static int __cpuinit smp_add_present_cpu(int cpu);
-static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add)
+static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info,
+ int sysfs_add)
{
struct pcpu *pcpu;
cpumask_t avail;
@@ -708,6 +709,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid)
pfault_init();
notify_cpu_starting(smp_processor_id());
set_cpu_online(smp_processor_id(), true);
+ inc_irq_stat(CPU_RST);
local_irq_enable();
/* cpu_idle will call schedule for us */
cpu_idle();
@@ -985,7 +987,7 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self,
return notifier_from_errno(err);
}
-static int smp_add_present_cpu(int cpu)
+static int __cpuinit smp_add_present_cpu(int cpu)
{
struct cpu *c = &pcpu_devices[cpu].cpu;
struct device *s = &c->dev;
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 48174850f3b0..6a6c61f94dd3 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -352,3 +352,4 @@ SYSCALL(sys_process_vm_readv,sys_process_vm_readv,compat_sys_process_vm_readv_wr
SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper)
SYSCALL(sys_ni_syscall,sys_s390_runtime_instr,sys_s390_runtime_instr_wrapper)
SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper)
+SYSCALL(sys_finit_module,sys_finit_module,sys_finit_module_wrapper)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 7fcd690d42c7..aff0e350d776 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -168,7 +168,7 @@ static void clock_comparator_interrupt(struct ext_code ext_code,
unsigned int param32,
unsigned long param64)
{
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CLK]++;
+ inc_irq_stat(IRQEXT_CLK);
if (S390_lowcore.clock_comparator == -1ULL)
set_clock_comparator(S390_lowcore.clock_comparator);
}
@@ -179,7 +179,7 @@ static void stp_timing_alert(struct stp_irq_parm *);
static void timing_alert_interrupt(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
- kstat_cpu(smp_processor_id()).irqs[EXTINT_TLA]++;
+ inc_irq_stat(IRQEXT_TLA);
if (param32 & 0x00c40000)
etr_timing_alert((struct etr_irq_parm *) &param32);
if (param32 & 0x00038000)
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index f1aba87cceb8..4b2e3e317004 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -10,6 +10,7 @@
#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>
@@ -42,6 +43,7 @@ static struct mask_info socket_info;
static struct mask_info book_info;
struct cpu_topology_s390 cpu_topology[NR_CPUS];
+EXPORT_SYMBOL_GPL(cpu_topology);
static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
{
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 42601d6e166f..2fb9e63b8fc4 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -569,7 +569,7 @@ static void pfault_interrupt(struct ext_code ext_code,
subcode = ext_code.subcode;
if ((subcode & 0xff00) != __SUBCODE_MASK)
return;
- kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++;
+ inc_irq_stat(IRQEXT_PFL);
/* Get the token (= pid of the affected task). */
pid = sizeof(void *) == 4 ? param32 : param64;
rcu_read_lock();
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c
index 0cb385da202c..b5b2916895e0 100644
--- a/arch/s390/oprofile/hwsampler.c
+++ b/arch/s390/oprofile/hwsampler.c
@@ -233,7 +233,7 @@ static void hws_ext_handler(struct ext_code ext_code,
if (!(param32 & CPU_MF_INT_SF_MASK))
return;
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CMS]++;
+ inc_irq_stat(IRQEXT_CMS);
atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32);
if (hws_wq)
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index ff49427e9941..60e0372545d2 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -160,35 +160,6 @@ int pci_proc_domain(struct pci_bus *bus)
}
EXPORT_SYMBOL_GPL(pci_proc_domain);
-/* Store PCI function information block */
-static int zpci_store_fib(struct zpci_dev *zdev, u8 *fc)
-{
- struct zpci_fib *fib;
- u8 status, cc;
-
- fib = (void *) get_zeroed_page(GFP_KERNEL);
- if (!fib)
- return -ENOMEM;
-
- do {
- cc = __stpcifc(zdev->fh, 0, fib, &status);
- if (cc == 2) {
- msleep(ZPCI_INSN_BUSY_DELAY);
- memset(fib, 0, PAGE_SIZE);
- }
- } while (cc == 2);
-
- if (cc)
- pr_err_once("%s: cc: %u status: %u\n",
- __func__, cc, status);
-
- /* Return PCI function controls */
- *fc = fib->fc;
-
- free_page((unsigned long) fib);
- return (cc) ? -EIO : 0;
-}
-
/* Modify PCI: Register adapter interruptions */
static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb,
u64 aibv)
@@ -469,7 +440,7 @@ static void zpci_irq_handler(void *dont, void *need)
int rescan = 0, max = aisb_max;
struct zdev_irq_map *imap;
- kstat_cpu(smp_processor_id()).irqs[IOINT_PCI]++;
+ inc_irq_stat(IRQIO_PCI);
sbit = start;
scan:
@@ -481,7 +452,7 @@ scan:
/* find vector bit */
imap = bucket->imap[sbit];
for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) {
- kstat_cpu(smp_processor_id()).irqs[IOINT_MSI]++;
+ inc_irq_stat(IRQIO_MSI);
clear_bit(63 - mbit, &imap->aibv);
spin_lock(&imap->lock);
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 6138468b420f..a547419907c3 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -13,8 +13,6 @@
#include <linux/pci.h>
#include <asm/pci_dma.h>
-static enum zpci_ioat_dtype zpci_ioat_dt = ZPCI_IOTA_RTTO;
-
static struct kmem_cache *dma_region_table_cache;
static struct kmem_cache *dma_page_table_cache;
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