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s390: fix setting of mio addressing control

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Move enablement of mio addressing control from detect_machine_facilities
to pci_base_init. detect_machine_facilities runs so early that the
static branches have not been toggled yet, thus mio addressing control
was always off. In pci_base_init we have to use the SMP aware
ctl_set_bit though.

Fixes: 833b441ec0 ("s390: enable processes for mio instructions")
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Sebastian Ott
2019-07-10 13:08:06 +02:00
committed by Vasily Gorbik
parent 1b2be2071a
commit 9964f396f1
3 changed files with 3 additions and 13 deletions
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10
arch/s390/include/asm/pci_insn.h
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@@ -143,14 +143,4 @@ static inline int zpci_set_irq_ctrl(u16 ctl, u8 isc)
return __zpci_set_irq_ctrl(ctl, isc, &iib);
}
#ifdef CONFIG_PCI
static inline void enable_mio_ctl(void)
{
if (static_branch_likely(&have_mio))
__ctl_set_bit(2, 5);
}
#else /* CONFIG_PCI */
static inline void enable_mio_ctl(void) {}
#endif /* CONFIG_PCI */
#endif