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[IA64] simplify notify hooks in mca.c
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There are many notify_die() and almost all take same style with
ia64_mca_spin().  This patch defines macros and replace them all,
to reduce lines and to improve readability.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Hidetoshi Seto authored and Tony Luck committed Apr 22, 2008
1 parent 284e542 commit 4fa2f0e
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Showing 3 changed files with 38 additions and 41 deletions.
4 changes: 2 additions & 2 deletions arch/ia64/kernel/crash.c
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Original file line number Diff line number Diff line change
Expand Up @@ -194,8 +194,8 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
unw_init_running(kdump_cpu_freeze, NULL);
break;
case DIE_MCA_MONARCH_LEAVE:
/* die_register->signr indicate if MCA is recoverable */
if (kdump_on_fatal_mca && !args->signr) {
/* *(nd->data) indicate if MCA is recoverable */
if (kdump_on_fatal_mca && !(*(nd->data))) {
atomic_set(&kdump_in_progress, 1);
*(nd->monarch_cpu) = -1;
machine_kdump_on_init();
Expand Down
74 changes: 35 additions & 39 deletions arch/ia64/kernel/mca.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,20 @@
# define IA64_MCA_DEBUG(fmt...)
#endif

#define NOTIFY_INIT(event, regs, arg, spin) \
do { \
if ((notify_die((event), "INIT", (regs), (arg), 0, 0) \
== NOTIFY_STOP) && ((spin) == 1)) \
ia64_mca_spin(__func__); \
} while (0)

#define NOTIFY_MCA(event, regs, arg, spin) \
do { \
if ((notify_die((event), "MCA", (regs), (arg), 0, 0) \
== NOTIFY_STOP) && ((spin) == 1)) \
ia64_mca_spin(__func__); \
} while (0)

/* Used by mca_asm.S */
DEFINE_PER_CPU(u64, ia64_mca_data); /* == __per_cpu_mca[smp_processor_id()] */
DEFINE_PER_CPU(u64, ia64_mca_per_cpu_pte); /* PTE to map per-CPU area */
Expand Down Expand Up @@ -766,27 +780,22 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg)

/* Mask all interrupts */
local_irq_save(flags);
if (notify_die(DIE_MCA_RENDZVOUS_ENTER, "MCA", get_irq_regs(),
(long)&nd, 0, 0) == NOTIFY_STOP)
ia64_mca_spin(__func__);

NOTIFY_MCA(DIE_MCA_RENDZVOUS_ENTER, get_irq_regs(), (long)&nd, 1);

ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_DONE;
/* Register with the SAL monarch that the slave has
* reached SAL
*/
ia64_sal_mc_rendez();

if (notify_die(DIE_MCA_RENDZVOUS_PROCESS, "MCA", get_irq_regs(),
(long)&nd, 0, 0) == NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_MCA(DIE_MCA_RENDZVOUS_PROCESS, get_irq_regs(), (long)&nd, 1);

/* Wait for the monarch cpu to exit. */
while (monarch_cpu != -1)
cpu_relax(); /* spin until monarch leaves */

if (notify_die(DIE_MCA_RENDZVOUS_LEAVE, "MCA", get_irq_regs(),
(long)&nd, 0, 0) == NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_MCA(DIE_MCA_RENDZVOUS_LEAVE, get_irq_regs(), (long)&nd, 1);

ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
/* Enable all interrupts */
Expand Down Expand Up @@ -1256,7 +1265,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
int recover, cpu = smp_processor_id();
struct task_struct *previous_current;
struct ia64_mca_notify_die nd =
{ .sos = sos, .monarch_cpu = &monarch_cpu };
{ .sos = sos, .monarch_cpu = &monarch_cpu, .data = &recover };
static atomic_t mca_count;
static cpumask_t mca_cpu;

Expand All @@ -1272,9 +1281,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,

previous_current = ia64_mca_modify_original_stack(regs, sw, sos, "MCA");

if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_MCA(DIE_MCA_MONARCH_ENTER, regs, (long)&nd, 1);

ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA;
if (sos->monarch) {
Expand All @@ -1293,9 +1300,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
cpu_relax(); /* spin until monarch wakes us */
}

if (notify_die(DIE_MCA_MONARCH_PROCESS, "MCA", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_MCA(DIE_MCA_MONARCH_PROCESS, regs, (long)&nd, 1);

/* Get the MCA error record and log it */
ia64_mca_log_sal_error_record(SAL_INFO_TYPE_MCA);
Expand All @@ -1321,9 +1326,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
mca_insert_tr(0x2); /*Reload dynamic itrs*/
}

if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_MCA(DIE_MCA_MONARCH_LEAVE, regs, (long)&nd, 1);

if (atomic_dec_return(&mca_count) > 0) {
int i;
Expand Down Expand Up @@ -1644,7 +1647,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
struct ia64_mca_notify_die nd =
{ .sos = sos, .monarch_cpu = &monarch_cpu };

(void) notify_die(DIE_INIT_ENTER, "INIT", regs, (long)&nd, 0, 0);
NOTIFY_INIT(DIE_INIT_ENTER, regs, (long)&nd, 0);

mprintk(KERN_INFO "Entered OS INIT handler. PSP=%lx cpu=%d monarch=%ld\n",
sos->proc_state_param, cpu, sos->monarch);
Expand Down Expand Up @@ -1681,17 +1684,15 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_INIT;
while (monarch_cpu == -1)
cpu_relax(); /* spin until monarch enters */
if (notify_die(DIE_INIT_SLAVE_ENTER, "INIT", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
if (notify_die(DIE_INIT_SLAVE_PROCESS, "INIT", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);

NOTIFY_INIT(DIE_INIT_SLAVE_ENTER, regs, (long)&nd, 1);
NOTIFY_INIT(DIE_INIT_SLAVE_PROCESS, regs, (long)&nd, 1);

while (monarch_cpu != -1)
cpu_relax(); /* spin until monarch leaves */
if (notify_die(DIE_INIT_SLAVE_LEAVE, "INIT", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);

NOTIFY_INIT(DIE_INIT_SLAVE_LEAVE, regs, (long)&nd, 1);

mprintk("Slave on cpu %d returning to normal service.\n", cpu);
set_curr_task(cpu, previous_current);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
Expand All @@ -1700,9 +1701,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
}

monarch_cpu = cpu;
if (notify_die(DIE_INIT_MONARCH_ENTER, "INIT", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_INIT(DIE_INIT_MONARCH_ENTER, regs, (long)&nd, 1);

/*
* Wait for a bit. On some machines (e.g., HP's zx2000 and zx6000, INIT can be
Expand All @@ -1717,12 +1716,9 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
* to default_monarch_init_process() above and just print all the
* tasks.
*/
if (notify_die(DIE_INIT_MONARCH_PROCESS, "INIT", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
if (notify_die(DIE_INIT_MONARCH_LEAVE, "INIT", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__func__);
NOTIFY_INIT(DIE_INIT_MONARCH_PROCESS, regs, (long)&nd, 1);
NOTIFY_INIT(DIE_INIT_MONARCH_LEAVE, regs, (long)&nd, 1);

mprintk("\nINIT dump complete. Monarch on cpu %d returning to normal service.\n", cpu);
atomic_dec(&monarchs);
set_curr_task(cpu, previous_current);
Expand Down Expand Up @@ -1954,7 +1950,7 @@ ia64_mca_init(void)
printk(KERN_INFO "Increasing MCA rendezvous timeout from "
"%ld to %ld milliseconds\n", timeout, isrv.v0);
timeout = isrv.v0;
(void) notify_die(DIE_MCA_NEW_TIMEOUT, "MCA", NULL, timeout, 0, 0);
NOTIFY_MCA(DIE_MCA_NEW_TIMEOUT, NULL, timeout, 0);
continue;
}
printk(KERN_ERR "Failed to register rendezvous interrupt "
Expand Down
1 change: 1 addition & 0 deletions include/asm-ia64/mca.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,7 @@ extern void ia64_mca_printk(const char * fmt, ...)
struct ia64_mca_notify_die {
struct ia64_sal_os_state *sos;
int *monarch_cpu;
int *data;
};

DECLARE_PER_CPU(u64, ia64_mca_pal_base);
Expand Down

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