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-rw-r--r--arch/s390/include/asm/irq.h7
-rw-r--r--arch/s390/kernel/entry.h3
-rw-r--r--arch/s390/kernel/irq.c12
-rw-r--r--arch/s390/kernel/smp.c4
-rw-r--r--arch/s390/kernel/time.c4
-rw-r--r--arch/s390/kernel/vtime.c2
-rw-r--r--arch/s390/mm/fault.c4
-rw-r--r--arch/s390/oprofile/hwsampler.c6
-rw-r--r--drivers/s390/block/dasd_diag.c8
-rw-r--r--drivers/s390/char/sclp.c4
-rw-r--r--drivers/s390/kvm/kvm_virtio.c6
-rw-r--r--net/iucv/iucv.c2
12 files changed, 32 insertions, 30 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index ba6d85f88d50..acee1806f61e 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -34,7 +34,12 @@ enum interruption_class {
NR_IRQS,
};
-typedef void (*ext_int_handler_t)(unsigned int, unsigned int, unsigned long);
+struct ext_code {
+ unsigned short subcode;
+ unsigned short code;
+};
+
+typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
int register_external_interrupt(u16 code, ext_int_handler_t handler);
int unregister_external_interrupt(u16 code, ext_int_handler_t handler);
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 4984785e3078..6cdddac93a2e 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -35,7 +35,8 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs);
void do_notify_resume(struct pt_regs *regs);
-void do_extint(struct pt_regs *regs, unsigned int, unsigned int, unsigned long);
+struct ext_code;
+void do_extint(struct pt_regs *regs, struct ext_code, unsigned int, unsigned long);
void do_restart(void);
void __init startup_init(void);
void die(struct pt_regs *regs, const char *str);
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 09a014c62537..7a97d57f7073 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -209,29 +209,27 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler)
}
EXPORT_SYMBOL(unregister_external_interrupt);
-void __irq_entry do_extint(struct pt_regs *regs, unsigned int ext_int_code,
+void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct pt_regs *old_regs;
- unsigned short code;
struct ext_int_info *p;
int index;
- code = (unsigned short) ext_int_code;
old_regs = set_irq_regs(regs);
irq_enter();
if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator)
/* Serve timer interrupts first. */
clock_comparator_work();
kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
- if (code != 0x1004)
+ if (ext_code.code != 0x1004)
__get_cpu_var(s390_idle).nohz_delay = 1;
- index = ext_hash(code);
+ index = ext_hash(ext_code.code);
rcu_read_lock();
list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
- if (likely(p->code == code))
- p->handler(ext_int_code, param32, param64);
+ if (likely(p->code == ext_code.code))
+ p->handler(ext_code, param32, param64);
rcu_read_unlock();
irq_exit();
set_irq_regs(old_regs);
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index afd6e5113a90..734e644972ab 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -434,14 +434,14 @@ void smp_stop_cpu(void)
* This is the main routine where commands issued by other
* cpus are handled.
*/
-static void do_ext_call_interrupt(unsigned int ext_int_code,
+static void do_ext_call_interrupt(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
unsigned long bits;
int cpu;
cpu = smp_processor_id();
- if ((ext_int_code & 0xffff) == 0x1202)
+ if (ext_code.code == 0x1202)
kstat_cpu(cpu).irqs[EXTINT_EXC]++;
else
kstat_cpu(cpu).irqs[EXTINT_EMS]++;
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 14da278febbf..d4e1cb1dbcd1 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -165,7 +165,7 @@ void init_cpu_timer(void)
__ctl_set_bit(0, 4);
}
-static void clock_comparator_interrupt(unsigned int ext_int_code,
+static void clock_comparator_interrupt(struct ext_code ext_code,
unsigned int param32,
unsigned long param64)
{
@@ -177,7 +177,7 @@ static void clock_comparator_interrupt(unsigned int ext_int_code,
static void etr_timing_alert(struct etr_irq_parm *);
static void stp_timing_alert(struct stp_irq_parm *);
-static void timing_alert_interrupt(unsigned int ext_int_code,
+static void timing_alert_interrupt(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
kstat_cpu(smp_processor_id()).irqs[EXTINT_TLA]++;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 277ea712b232..39ebff506946 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -220,7 +220,7 @@ static void do_callbacks(struct list_head *cb_list)
/*
* Handler for the virtual CPU timer.
*/
-static void do_cpu_timer_interrupt(unsigned int ext_int_code,
+static void do_cpu_timer_interrupt(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct vtimer_queue *vq;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index e8fcd928dc78..b17c42df61c9 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -532,7 +532,7 @@ void pfault_fini(void)
static DEFINE_SPINLOCK(pfault_lock);
static LIST_HEAD(pfault_list);
-static void pfault_interrupt(unsigned int ext_int_code,
+static void pfault_interrupt(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct task_struct *tsk;
@@ -545,7 +545,7 @@ static void pfault_interrupt(unsigned int ext_int_code,
* in the 'cpu address' field associated with the
* external interrupt.
*/
- subcode = ext_int_code >> 16;
+ subcode = ext_code.subcode;
if ((subcode & 0xff00) != __SUBCODE_MASK)
return;
kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++;
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c
index 9daee91e6c3f..12bea05a0fc1 100644
--- a/arch/s390/oprofile/hwsampler.c
+++ b/arch/s390/oprofile/hwsampler.c
@@ -233,8 +233,8 @@ static inline unsigned long *trailer_entry_ptr(unsigned long v)
}
/* prototypes for external interrupt handler and worker */
-static void hws_ext_handler(unsigned int ext_int_code,
- unsigned int param32, unsigned long param64);
+static void hws_ext_handler(struct ext_code ext_code,
+ unsigned int param32, unsigned long param64);
static void worker(struct work_struct *work);
@@ -673,7 +673,7 @@ int hwsampler_activate(unsigned int cpu)
return rc;
}
-static void hws_ext_handler(unsigned int ext_int_code,
+static void hws_ext_handler(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct hws_cpu_buffer *cb;
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 46784b83c5c4..0cea7e98f464 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -229,7 +229,7 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr)
}
/* Handle external interruption. */
-static void dasd_ext_handler(unsigned int ext_int_code,
+static void dasd_ext_handler(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct dasd_ccw_req *cqr, *next;
@@ -239,7 +239,7 @@ static void dasd_ext_handler(unsigned int ext_int_code,
addr_t ip;
int rc;
- switch (ext_int_code >> 24) {
+ switch (ext_code.subcode >> 8) {
case DASD_DIAG_CODE_31BIT:
ip = (addr_t) param32;
break;
@@ -280,7 +280,7 @@ static void dasd_ext_handler(unsigned int ext_int_code,
cqr->stopclk = get_clock();
expires = 0;
- if ((ext_int_code & 0xff0000) == 0) {
+ if ((ext_code.subcode & 0xff) == 0) {
cqr->status = DASD_CQR_SUCCESS;
/* Start first request on queue if possible -> fast_io. */
if (!list_empty(&device->ccw_queue)) {
@@ -296,7 +296,7 @@ static void dasd_ext_handler(unsigned int ext_int_code,
cqr->status = DASD_CQR_QUEUED;
DBF_DEV_EVENT(DBF_DEBUG, device, "interrupt status for "
"request %p was %d (%d retries left)", cqr,
- (ext_int_code >> 16) & 0xff, cqr->retries);
+ ext_code.subcode & 0xff, cqr->retries);
dasd_diag_erp(device);
}
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index eaa7e78186f9..30f29a0020a1 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -393,7 +393,7 @@ __sclp_find_req(u32 sccb)
/* Handler for external interruption. Perform request post-processing.
* Prepare read event data request if necessary. Start processing of next
* request on queue. */
-static void sclp_interrupt_handler(unsigned int ext_int_code,
+static void sclp_interrupt_handler(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct sclp_req *req;
@@ -818,7 +818,7 @@ EXPORT_SYMBOL(sclp_reactivate);
/* Handler for external interruption used during initialization. Modify
* request state to done. */
-static void sclp_check_handler(unsigned int ext_int_code,
+static void sclp_check_handler(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
u32 finished_sccb;
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index 7bc1955337ea..d74e9ae6dfb3 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -380,15 +380,13 @@ static void hotplug_devices(struct work_struct *dummy)
/*
* we emulate the request_irq behaviour on top of s390 extints
*/
-static void kvm_extint_handler(unsigned int ext_int_code,
+static void kvm_extint_handler(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct virtqueue *vq;
- u16 subcode;
u32 param;
- subcode = ext_int_code >> 16;
- if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
+ if ((ext_code.subcode & 0xff00) != VIRTIO_SUBCODE_64)
return;
kstat_cpu(smp_processor_id()).irqs[EXTINT_VRT]++;
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 403be43b793d..3ad1f9db5f8b 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1800,7 +1800,7 @@ static void iucv_work_fn(struct work_struct *work)
* Handles external interrupts coming in from CP.
* Places the interrupt buffer on a queue and schedules iucv_tasklet_fn().
*/
-static void iucv_external_interrupt(unsigned int ext_int_code,
+static void iucv_external_interrupt(struct ext_code ext_code,
unsigned int param32, unsigned long param64)
{
struct iucv_irq_data *p;
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