Commit 7dd8fe1f authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
Browse files

[S390] pfault: cleanup code



Small code cleanup.
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent f2db2e6c
......@@ -452,22 +452,28 @@ static int __init nopfault(char *str)
__setup("nopfault", nopfault);
typedef struct {
__u16 refdiagc;
__u16 reffcode;
__u16 refdwlen;
__u16 refversn;
__u64 refgaddr;
__u64 refselmk;
__u64 refcmpmk;
__u64 reserved;
} __attribute__ ((packed, aligned(8))) pfault_refbk_t;
struct pfault_refbk {
u16 refdiagc;
u16 reffcode;
u16 refdwlen;
u16 refversn;
u64 refgaddr;
u64 refselmk;
u64 refcmpmk;
u64 reserved;
} __attribute__ ((packed, aligned(8)));
int pfault_init(void)
{
pfault_refbk_t refbk =
{ 0x258, 0, 5, 2, __LC_CURRENT_PID, 1ULL << 48, 1ULL << 48,
__PF_RES_FIELD };
struct pfault_refbk refbk = {
.refdiagc = 0x258,
.reffcode = 0,
.refdwlen = 5,
.refversn = 2,
.refgaddr = __LC_CURRENT_PID,
.refselmk = 1ULL << 48,
.refcmpmk = 1ULL << 48,
.reserved = __PF_RES_FIELD };
int rc;
if (!MACHINE_IS_VM || pfault_disable)
......@@ -485,8 +491,12 @@ int pfault_init(void)
void pfault_fini(void)
{
pfault_refbk_t refbk =
{ 0x258, 1, 5, 2, 0ULL, 0ULL, 0ULL, 0ULL };
struct pfault_refbk refbk = {
.refdiagc = 0x258,
.reffcode = 1,
.refdwlen = 5,
.refversn = 2,
};
if (!MACHINE_IS_VM || pfault_disable)
return;
......@@ -599,24 +609,21 @@ static int __init pfault_irq_init(void)
if (!MACHINE_IS_VM)
return 0;
/*
* Try to get pfault pseudo page faults going.
*/
rc = register_external_interrupt(0x2603, pfault_interrupt);
if (rc) {
pfault_disable = 1;
return rc;
}
if (pfault_init() == 0) {
hotcpu_notifier(pfault_cpu_notify, 0);
return 0;
}
if (rc)
goto out_extint;
rc = pfault_init() == 0 ? 0 : -EOPNOTSUPP;
if (rc)
goto out_pfault;
hotcpu_notifier(pfault_cpu_notify, 0);
return 0;
/* Tough luck, no pfault. */
pfault_disable = 1;
out_pfault:
unregister_external_interrupt(0x2603, pfault_interrupt);
return 0;
out_extint:
pfault_disable = 1;
return rc;
}
early_initcall(pfault_irq_init);
#endif
#endif /* CONFIG_PFAULT */
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