Author: kib
Date: Wed Apr 1 16:01:03 2020
New Revision: 359517
URL: https://svnweb.freebsd.org/changeset/base/359517
Log:
MFC r359093:
Do not spuriously re-enable disabled io_apic pin on EOI for some
configurations.
Modified:
stable/12/sys/x86/x86/io_apic.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/x86/x86/io_apic.c
==============================================================================
--- stable/12/sys/x86/x86/io_apic.c Wed Apr 1 15:59:26 2020
(r359516)
+++ stable/12/sys/x86/x86/io_apic.c Wed Apr 1 16:01:03 2020
(r359517)
@@ -194,8 +194,11 @@ _ioapic_eoi_source(struct intsrc *isrc, int locked)
low1 |= IOART_TRGREDG | IOART_INTMSET;
ioapic_write(io->io_addr, IOAPIC_REDTBL_LO(src->io_intpin),
low1);
+ low1 = src->io_lowreg;
+ if (src->io_masked != 0)
+ low1 |= IOART_INTMSET;
ioapic_write(io->io_addr, IOAPIC_REDTBL_LO(src->io_intpin),
- src->io_lowreg);
+ low1);
if (!locked)
mtx_unlock_spin(&icu_lock);
}
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