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authorLinus Torvalds <torvalds@linux-foundation.org>2013-01-10 11:20:15 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2013-01-10 11:20:15 -0500
commit7be72c39544e3973509f1c299d255a67177c7a33 (patch)
tree4ddef3dcfd764068b085874528f5e16dda63d039 /arch
parent9931faca02c604c22335f5a935a501bb2ace6e20 (diff)
parent478740a14826c50595649b3dafed71576796dd95 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 patches from Martin Schwidefsky: "Add the finit_module system call, fix the irq statistics in /proc/stat, fix a s390dbf lockdep problem, a patch revert for a problem that is not 100% understood yet, and a few patches to fix warnings." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: define read*_relaxed functions s390/topology: export cpu_topology s390/pm: export pm_power_off s390/pci: define isa_dma_bridge_buggy s390/3215: partially revert tty close handling fix s390/irq: count cpu restart events s390/irq: remove split irq fields from /proc/stat s390/irq: enable irq sum accounting for /proc/stat again s390/syscalls: wire up finit_module syscall s390/pci: remove dead code s390/smp: fix section mismatch for smp_add_present_cpu() s390/debug: Fix s390dbf lockdep problem in debug_(un)register_view()
Diffstat (limited to 'arch')
-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 @@
10 */ 10 */
11#define MAX_DMA_ADDRESS 0x80000000 11#define MAX_DMA_ADDRESS 0x80000000
12 12
13#ifdef CONFIG_PCI
14extern int isa_dma_bridge_buggy;
15#else
16#define isa_dma_bridge_buggy (0)
17#endif
18
13#endif /* _ASM_S390_DMA_H */ 19#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)
85#define __raw_writel zpci_write_u32 85#define __raw_writel zpci_write_u32
86#define __raw_writeq zpci_write_u64 86#define __raw_writeq zpci_write_u64
87 87
88#define readb_relaxed readb
89#define readw_relaxed readw
90#define readl_relaxed readl
91#define readq_relaxed readq
92
88#endif /* CONFIG_PCI */ 93#endif /* CONFIG_PCI */
89 94
90#include <asm-generic/io.h> 95#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 @@
2#define _ASM_IRQ_H 2#define _ASM_IRQ_H
3 3
4#include <linux/hardirq.h> 4#include <linux/hardirq.h>
5#include <linux/percpu.h>
6#include <linux/cache.h>
5#include <linux/types.h> 7#include <linux/types.h>
6 8
7enum interruption_class { 9enum interruption_main_class {
8 EXTERNAL_INTERRUPT, 10 EXTERNAL_INTERRUPT,
9 IO_INTERRUPT, 11 IO_INTERRUPT,
10 EXTINT_CLK, 12 NR_IRQS
11 EXTINT_EXC, 13};
12 EXTINT_EMS, 14
13 EXTINT_TMR, 15enum interruption_class {
14 EXTINT_TLA, 16 IRQEXT_CLK,
15 EXTINT_PFL, 17 IRQEXT_EXC,
16 EXTINT_DSD, 18 IRQEXT_EMS,
17 EXTINT_VRT, 19 IRQEXT_TMR,
18 EXTINT_SCP, 20 IRQEXT_TLA,
19 EXTINT_IUC, 21 IRQEXT_PFL,
20 EXTINT_CMS, 22 IRQEXT_DSD,
21 EXTINT_CMC, 23 IRQEXT_VRT,
22 EXTINT_CMR, 24 IRQEXT_SCP,
23 IOINT_CIO, 25 IRQEXT_IUC,
24 IOINT_QAI, 26 IRQEXT_CMS,
25 IOINT_DAS, 27 IRQEXT_CMC,
26 IOINT_C15, 28 IRQEXT_CMR,
27 IOINT_C70, 29 IRQIO_CIO,
28 IOINT_TAP, 30 IRQIO_QAI,
29 IOINT_VMR, 31 IRQIO_DAS,
30 IOINT_LCS, 32 IRQIO_C15,
31 IOINT_CLW, 33 IRQIO_C70,
32 IOINT_CTC, 34 IRQIO_TAP,
33 IOINT_APB, 35 IRQIO_VMR,
34 IOINT_ADM, 36 IRQIO_LCS,
35 IOINT_CSC, 37 IRQIO_CLW,
36 IOINT_PCI, 38 IRQIO_CTC,
37 IOINT_MSI, 39 IRQIO_APB,
40 IRQIO_ADM,
41 IRQIO_CSC,
42 IRQIO_PCI,
43 IRQIO_MSI,
38 NMI_NMI, 44 NMI_NMI,
39 NR_IRQS, 45 CPU_RST,
46 NR_ARCH_IRQS
40}; 47};
41 48
49struct irq_stat {
50 unsigned int irqs[NR_ARCH_IRQS];
51};
52
53DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
54
55static __always_inline void inc_irq_stat(enum interruption_class irq)
56{
57 __get_cpu_var(irq_stat).irqs[irq]++;
58}
59
42struct ext_code { 60struct ext_code {
43 unsigned short subcode; 61 unsigned short subcode;
44 unsigned short code; 62 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 @@
279#define __NR_process_vm_writev 341 279#define __NR_process_vm_writev 341
280#define __NR_s390_runtime_instr 342 280#define __NR_s390_runtime_instr 342
281#define __NR_kcmp 343 281#define __NR_kcmp 343
282#define NR_syscalls 344 282#define __NR_finit_module 344
283#define NR_syscalls 345
283 284
284/* 285/*
285 * There are some system calls that are not present on 64 bit, some 286 * 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)
1659 llgfr %r5,%r5 # unsigned long 1659 llgfr %r5,%r5 # unsigned long
1660 llgfr %r6,%r6 # unsigned long 1660 llgfr %r6,%r6 # unsigned long
1661 jg sys_kcmp 1661 jg sys_kcmp
1662
1663ENTRY(sys_finit_module_wrapper)
1664 lgfr %r2,%r2 # int
1665 llgtr %r3,%r3 # const char __user *
1666 lgfr %r4,%r4 # int
1667 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)
1127 if (i == DEBUG_MAX_VIEWS) { 1127 if (i == DEBUG_MAX_VIEWS) {
1128 pr_err("Registering view %s/%s would exceed the maximum " 1128 pr_err("Registering view %s/%s would exceed the maximum "
1129 "number of views %i\n", id->name, view->name, i); 1129 "number of views %i\n", id->name, view->name, i);
1130 debugfs_remove(pde);
1131 rc = -1; 1130 rc = -1;
1132 } else { 1131 } else {
1133 id->views[i] = view; 1132 id->views[i] = view;
1134 id->debugfs_entries[i] = pde; 1133 id->debugfs_entries[i] = pde;
1135 } 1134 }
1136 spin_unlock_irqrestore(&id->lock, flags); 1135 spin_unlock_irqrestore(&id->lock, flags);
1136 if (rc)
1137 debugfs_remove(pde);
1137out: 1138out:
1138 return rc; 1139 return rc;
1139} 1140}
@@ -1146,9 +1147,9 @@ EXPORT_SYMBOL(debug_register_view);
1146int 1147int
1147debug_unregister_view(debug_info_t * id, struct debug_view *view) 1148debug_unregister_view(debug_info_t * id, struct debug_view *view)
1148{ 1149{
1149 int rc = 0; 1150 struct dentry *dentry = NULL;
1150 int i;
1151 unsigned long flags; 1151 unsigned long flags;
1152 int i, rc = 0;
1152 1153
1153 if (!id) 1154 if (!id)
1154 goto out; 1155 goto out;
@@ -1160,10 +1161,12 @@ debug_unregister_view(debug_info_t * id, struct debug_view *view)
1160 if (i == DEBUG_MAX_VIEWS) 1161 if (i == DEBUG_MAX_VIEWS)
1161 rc = -1; 1162 rc = -1;
1162 else { 1163 else {
1163 debugfs_remove(id->debugfs_entries[i]); 1164 dentry = id->debugfs_entries[i];
1164 id->views[i] = NULL; 1165 id->views[i] = NULL;
1166 id->debugfs_entries[i] = NULL;
1165 } 1167 }
1166 spin_unlock_irqrestore(&id->lock, flags); 1168 spin_unlock_irqrestore(&id->lock, flags);
1169 debugfs_remove(dentry);
1167out: 1170out:
1168 return rc; 1171 return rc;
1169} 1172}
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 @@
24#include <asm/irq.h> 24#include <asm/irq.h>
25#include "entry.h" 25#include "entry.h"
26 26
27DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
28EXPORT_PER_CPU_SYMBOL_GPL(irq_stat);
29
27struct irq_class { 30struct irq_class {
28 char *name; 31 char *name;
29 char *desc; 32 char *desc;
30}; 33};
31 34
32static const struct irq_class intrclass_names[] = { 35/*
36 * The list of "main" irq classes on s390. This is the list of interrrupts
37 * that appear both in /proc/stat ("intr" line) and /proc/interrupts.
38 * Historically only external and I/O interrupts have been part of /proc/stat.
39 * We can't add the split external and I/O sub classes since the first field
40 * in the "intr" line in /proc/stat is supposed to be the sum of all other
41 * fields.
42 * Since the external and I/O interrupt fields are already sums we would end
43 * up with having a sum which accounts each interrupt twice.
44 */
45static const struct irq_class irqclass_main_desc[NR_IRQS] = {
33 [EXTERNAL_INTERRUPT] = {.name = "EXT"}, 46 [EXTERNAL_INTERRUPT] = {.name = "EXT"},
34 [IO_INTERRUPT] = {.name = "I/O"}, 47 [IO_INTERRUPT] = {.name = "I/O"}
35 [EXTINT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"}, 48};
36 [EXTINT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"}, 49
37 [EXTINT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"}, 50/*
38 [EXTINT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"}, 51 * The list of split external and I/O interrupts that appear only in
39 [EXTINT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"}, 52 * /proc/interrupts.
40 [EXTINT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, 53 * In addition this list contains non external / I/O events like NMIs.
41 [EXTINT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"}, 54 */
42 [EXTINT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"}, 55static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = {
43 [EXTINT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"}, 56 [IRQEXT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"},
44 [EXTINT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"}, 57 [IRQEXT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"},
45 [EXTINT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, 58 [IRQEXT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"},
46 [EXTINT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, 59 [IRQEXT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"},
47 [EXTINT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, 60 [IRQEXT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"},
48 [IOINT_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, 61 [IRQEXT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"},
49 [IOINT_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, 62 [IRQEXT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"},
50 [IOINT_DAS] = {.name = "DAS", .desc = "[I/O] DASD"}, 63 [IRQEXT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"},
51 [IOINT_C15] = {.name = "C15", .desc = "[I/O] 3215"}, 64 [IRQEXT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"},
52 [IOINT_C70] = {.name = "C70", .desc = "[I/O] 3270"}, 65 [IRQEXT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"},
53 [IOINT_TAP] = {.name = "TAP", .desc = "[I/O] Tape"}, 66 [IRQEXT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"},
54 [IOINT_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"}, 67 [IRQEXT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"},
55 [IOINT_LCS] = {.name = "LCS", .desc = "[I/O] LCS"}, 68 [IRQEXT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"},
56 [IOINT_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"}, 69 [IRQIO_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"},
57 [IOINT_CTC] = {.name = "CTC", .desc = "[I/O] CTC"}, 70 [IRQIO_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"},
58 [IOINT_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, 71 [IRQIO_DAS] = {.name = "DAS", .desc = "[I/O] DASD"},
59 [IOINT_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, 72 [IRQIO_C15] = {.name = "C15", .desc = "[I/O] 3215"},
60 [IOINT_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, 73 [IRQIO_C70] = {.name = "C70", .desc = "[I/O] 3270"},
61 [IOINT_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, 74 [IRQIO_TAP] = {.name = "TAP", .desc = "[I/O] Tape"},
62 [IOINT_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, 75 [IRQIO_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"},
76 [IRQIO_LCS] = {.name = "LCS", .desc = "[I/O] LCS"},
77 [IRQIO_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"},
78 [IRQIO_CTC] = {.name = "CTC", .desc = "[I/O] CTC"},
79 [IRQIO_APB] = {.name = "APB", .desc = "[I/O] AP Bus"},
80 [IRQIO_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"},
81 [IRQIO_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"},
82 [IRQIO_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" },
83 [IRQIO_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" },
63 [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"}, 84 [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"},
85 [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"},
64}; 86};
65 87
66/* 88/*
@@ -68,30 +90,34 @@ static const struct irq_class intrclass_names[] = {
68 */ 90 */
69int show_interrupts(struct seq_file *p, void *v) 91int show_interrupts(struct seq_file *p, void *v)
70{ 92{
71 int i = *(loff_t *) v, j; 93 int irq = *(loff_t *) v;
94 int cpu;
72 95
73 get_online_cpus(); 96 get_online_cpus();
74 if (i == 0) { 97 if (irq == 0) {
75 seq_puts(p, " "); 98 seq_puts(p, " ");
76 for_each_online_cpu(j) 99 for_each_online_cpu(cpu)
77 seq_printf(p, "CPU%d ",j); 100 seq_printf(p, "CPU%d ", cpu);
78 seq_putc(p, '\n'); 101 seq_putc(p, '\n');
79 } 102 }
80 103 if (irq < NR_IRQS) {
81 if (i < NR_IRQS) { 104 seq_printf(p, "%s: ", irqclass_main_desc[irq].name);
82 seq_printf(p, "%s: ", intrclass_names[i].name); 105 for_each_online_cpu(cpu)
83#ifndef CONFIG_SMP 106 seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[irq]);
84 seq_printf(p, "%10u ", kstat_irqs(i)); 107 seq_putc(p, '\n');
85#else 108 goto skip_arch_irqs;
86 for_each_online_cpu(j) 109 }
87 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); 110 for (irq = 0; irq < NR_ARCH_IRQS; irq++) {
88#endif 111 seq_printf(p, "%s: ", irqclass_sub_desc[irq].name);
89 if (intrclass_names[i].desc) 112 for_each_online_cpu(cpu)
90 seq_printf(p, " %s", intrclass_names[i].desc); 113 seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]);
91 seq_putc(p, '\n'); 114 if (irqclass_sub_desc[irq].desc)
92 } 115 seq_printf(p, " %s", irqclass_sub_desc[irq].desc);
116 seq_putc(p, '\n');
117 }
118skip_arch_irqs:
93 put_online_cpus(); 119 put_online_cpus();
94 return 0; 120 return 0;
95} 121}
96 122
97/* 123/*
@@ -222,7 +248,7 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code,
222 /* Serve timer interrupts first. */ 248 /* Serve timer interrupts first. */
223 clock_comparator_work(); 249 clock_comparator_work();
224 } 250 }
225 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; 251 kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL);
226 if (ext_code.code != 0x1004) 252 if (ext_code.code != 0x1004)
227 __get_cpu_var(s390_idle).nohz_delay = 1; 253 __get_cpu_var(s390_idle).nohz_delay = 1;
228 254
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)
254 int umode; 254 int umode;
255 255
256 nmi_enter(); 256 nmi_enter();
257 kstat_cpu(smp_processor_id()).irqs[NMI_NMI]++; 257 inc_irq_stat(NMI_NMI);
258 mci = (struct mci *) &S390_lowcore.mcck_interruption_code; 258 mci = (struct mci *) &S390_lowcore.mcck_interruption_code;
259 mcck = &__get_cpu_var(cpu_mcck); 259 mcck = &__get_cpu_var(cpu_mcck);
260 umode = user_mode(regs); 260 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,
229 if (!(alert & CPU_MF_INT_CF_MASK)) 229 if (!(alert & CPU_MF_INT_CF_MASK))
230 return; 230 return;
231 231
232 kstat_cpu(smp_processor_id()).irqs[EXTINT_CMC]++; 232 inc_irq_stat(IRQEXT_CMC);
233 cpuhw = &__get_cpu_var(cpu_hw_events); 233 cpuhw = &__get_cpu_var(cpu_hw_events);
234 234
235 /* Measurement alerts are shared and might happen when the PMU 235 /* 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,
71 if (!(param32 & CPU_MF_INT_RI_MASK)) 71 if (!(param32 & CPU_MF_INT_RI_MASK))
72 return; 72 return;
73 73
74 kstat_cpu(smp_processor_id()).irqs[EXTINT_CMR]++; 74 inc_irq_stat(IRQEXT_CMR);
75 75
76 if (!current->thread.ri_cb) 76 if (!current->thread.ri_cb)
77 return; 77 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 @@
16#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 16#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
17 17
18#include <linux/errno.h> 18#include <linux/errno.h>
19#include <linux/module.h> 19#include <linux/export.h>
20#include <linux/sched.h> 20#include <linux/sched.h>
21#include <linux/kernel.h> 21#include <linux/kernel.h>
22#include <linux/memblock.h> 22#include <linux/memblock.h>
@@ -289,6 +289,7 @@ void machine_power_off(void)
289 * Dummy power off function. 289 * Dummy power off function.
290 */ 290 */
291void (*pm_power_off)(void) = machine_power_off; 291void (*pm_power_off)(void) = machine_power_off;
292EXPORT_SYMBOL_GPL(pm_power_off);
292 293
293static int __init early_parse_mem(char *p) 294static int __init early_parse_mem(char *p)
294{ 295{
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,
433 433
434 cpu = smp_processor_id(); 434 cpu = smp_processor_id();
435 if (ext_code.code == 0x1202) 435 if (ext_code.code == 0x1202)
436 kstat_cpu(cpu).irqs[EXTINT_EXC]++; 436 inc_irq_stat(IRQEXT_EXC);
437 else 437 else
438 kstat_cpu(cpu).irqs[EXTINT_EMS]++; 438 inc_irq_stat(IRQEXT_EMS);
439 /* 439 /*
440 * handle bit signal external calls 440 * handle bit signal external calls
441 */ 441 */
@@ -623,9 +623,10 @@ static struct sclp_cpu_info *smp_get_cpu_info(void)
623 return info; 623 return info;
624} 624}
625 625
626static int smp_add_present_cpu(int cpu); 626static int __cpuinit smp_add_present_cpu(int cpu);
627 627
628static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add) 628static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info,
629 int sysfs_add)
629{ 630{
630 struct pcpu *pcpu; 631 struct pcpu *pcpu;
631 cpumask_t avail; 632 cpumask_t avail;
@@ -708,6 +709,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid)
708 pfault_init(); 709 pfault_init();
709 notify_cpu_starting(smp_processor_id()); 710 notify_cpu_starting(smp_processor_id());
710 set_cpu_online(smp_processor_id(), true); 711 set_cpu_online(smp_processor_id(), true);
712 inc_irq_stat(CPU_RST);
711 local_irq_enable(); 713 local_irq_enable();
712 /* cpu_idle will call schedule for us */ 714 /* cpu_idle will call schedule for us */
713 cpu_idle(); 715 cpu_idle();
@@ -985,7 +987,7 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self,
985 return notifier_from_errno(err); 987 return notifier_from_errno(err);
986} 988}
987 989
988static int smp_add_present_cpu(int cpu) 990static int __cpuinit smp_add_present_cpu(int cpu)
989{ 991{
990 struct cpu *c = &pcpu_devices[cpu].cpu; 992 struct cpu *c = &pcpu_devices[cpu].cpu;
991 struct device *s = &c->dev; 993 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
352SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper) 352SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper)
353SYSCALL(sys_ni_syscall,sys_s390_runtime_instr,sys_s390_runtime_instr_wrapper) 353SYSCALL(sys_ni_syscall,sys_s390_runtime_instr,sys_s390_runtime_instr_wrapper)
354SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper) 354SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper)
355SYSCALL(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,
168 unsigned int param32, 168 unsigned int param32,
169 unsigned long param64) 169 unsigned long param64)
170{ 170{
171 kstat_cpu(smp_processor_id()).irqs[EXTINT_CLK]++; 171 inc_irq_stat(IRQEXT_CLK);
172 if (S390_lowcore.clock_comparator == -1ULL) 172 if (S390_lowcore.clock_comparator == -1ULL)
173 set_clock_comparator(S390_lowcore.clock_comparator); 173 set_clock_comparator(S390_lowcore.clock_comparator);
174} 174}
@@ -179,7 +179,7 @@ static void stp_timing_alert(struct stp_irq_parm *);
179static void timing_alert_interrupt(struct ext_code ext_code, 179static void timing_alert_interrupt(struct ext_code ext_code,
180 unsigned int param32, unsigned long param64) 180 unsigned int param32, unsigned long param64)
181{ 181{
182 kstat_cpu(smp_processor_id()).irqs[EXTINT_TLA]++; 182 inc_irq_stat(IRQEXT_TLA);
183 if (param32 & 0x00c40000) 183 if (param32 & 0x00c40000)
184 etr_timing_alert((struct etr_irq_parm *) &param32); 184 etr_timing_alert((struct etr_irq_parm *) &param32);
185 if (param32 & 0x00038000) 185 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 @@
10#include <linux/bootmem.h> 10#include <linux/bootmem.h>
11#include <linux/cpuset.h> 11#include <linux/cpuset.h>
12#include <linux/device.h> 12#include <linux/device.h>
13#include <linux/export.h>
13#include <linux/kernel.h> 14#include <linux/kernel.h>
14#include <linux/sched.h> 15#include <linux/sched.h>
15#include <linux/init.h> 16#include <linux/init.h>
@@ -42,6 +43,7 @@ static struct mask_info socket_info;
42static struct mask_info book_info; 43static struct mask_info book_info;
43 44
44struct cpu_topology_s390 cpu_topology[NR_CPUS]; 45struct cpu_topology_s390 cpu_topology[NR_CPUS];
46EXPORT_SYMBOL_GPL(cpu_topology);
45 47
46static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) 48static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
47{ 49{
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,
569 subcode = ext_code.subcode; 569 subcode = ext_code.subcode;
570 if ((subcode & 0xff00) != __SUBCODE_MASK) 570 if ((subcode & 0xff00) != __SUBCODE_MASK)
571 return; 571 return;
572 kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++; 572 inc_irq_stat(IRQEXT_PFL);
573 /* Get the token (= pid of the affected task). */ 573 /* Get the token (= pid of the affected task). */
574 pid = sizeof(void *) == 4 ? param32 : param64; 574 pid = sizeof(void *) == 4 ? param32 : param64;
575 rcu_read_lock(); 575 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,
233 if (!(param32 & CPU_MF_INT_SF_MASK)) 233 if (!(param32 & CPU_MF_INT_SF_MASK))
234 return; 234 return;
235 235
236 kstat_cpu(smp_processor_id()).irqs[EXTINT_CMS]++; 236 inc_irq_stat(IRQEXT_CMS);
237 atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32); 237 atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32);
238 238
239 if (hws_wq) 239 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)
160} 160}
161EXPORT_SYMBOL_GPL(pci_proc_domain); 161EXPORT_SYMBOL_GPL(pci_proc_domain);
162 162
163/* Store PCI function information block */
164static int zpci_store_fib(struct zpci_dev *zdev, u8 *fc)
165{
166 struct zpci_fib *fib;
167 u8 status, cc;
168
169 fib = (void *) get_zeroed_page(GFP_KERNEL);
170 if (!fib)
171 return -ENOMEM;
172
173 do {
174 cc = __stpcifc(zdev->fh, 0, fib, &status);
175 if (cc == 2) {
176 msleep(ZPCI_INSN_BUSY_DELAY);
177 memset(fib, 0, PAGE_SIZE);
178 }
179 } while (cc == 2);
180
181 if (cc)
182 pr_err_once("%s: cc: %u status: %u\n",
183 __func__, cc, status);
184
185 /* Return PCI function controls */
186 *fc = fib->fc;
187
188 free_page((unsigned long) fib);
189 return (cc) ? -EIO : 0;
190}
191
192/* Modify PCI: Register adapter interruptions */ 163/* Modify PCI: Register adapter interruptions */
193static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, 164static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb,
194 u64 aibv) 165 u64 aibv)
@@ -469,7 +440,7 @@ static void zpci_irq_handler(void *dont, void *need)
469 int rescan = 0, max = aisb_max; 440 int rescan = 0, max = aisb_max;
470 struct zdev_irq_map *imap; 441 struct zdev_irq_map *imap;
471 442
472 kstat_cpu(smp_processor_id()).irqs[IOINT_PCI]++; 443 inc_irq_stat(IRQIO_PCI);
473 sbit = start; 444 sbit = start;
474 445
475scan: 446scan:
@@ -481,7 +452,7 @@ scan:
481 /* find vector bit */ 452 /* find vector bit */
482 imap = bucket->imap[sbit]; 453 imap = bucket->imap[sbit];
483 for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) { 454 for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) {
484 kstat_cpu(smp_processor_id()).irqs[IOINT_MSI]++; 455 inc_irq_stat(IRQIO_MSI);
485 clear_bit(63 - mbit, &imap->aibv); 456 clear_bit(63 - mbit, &imap->aibv);
486 457
487 spin_lock(&imap->lock); 458 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 @@
13#include <linux/pci.h> 13#include <linux/pci.h>
14#include <asm/pci_dma.h> 14#include <asm/pci_dma.h>
15 15
16static enum zpci_ioat_dtype zpci_ioat_dt = ZPCI_IOTA_RTTO;
17
18static struct kmem_cache *dma_region_table_cache; 16static struct kmem_cache *dma_region_table_cache;
19static struct kmem_cache *dma_page_table_cache; 17static struct kmem_cache *dma_page_table_cache;
20 18
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-22 03:12:02 -0500