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AHCI 1.3.1 section 5.5.3 "Processing Completed Commands" says that we

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should clear PxIS before IS.IPS.
This commit is contained in:
jmcneill 2020-12-27 15:13:07 +00:00
parent 565eefa2e5
commit d9dac464c6
1 changed files with 3 additions and 3 deletions
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6
sys/dev/ic/ahcisata_core.c
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@ -1,4 +1,4 @@
/* $NetBSD: ahcisata_core.c,v 1.89 2020/12/26 15:40:29 jmcneill Exp $ */
/* $NetBSD: ahcisata_core.c,v 1.90 2020/12/27 15:13:07 jmcneill Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ahcisata_core.c,v 1.89 2020/12/26 15:40:29 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: ahcisata_core.c,v 1.90 2020/12/27 15:13:07 jmcneill Exp $");
#include <sys/types.h>
#include <sys/malloc.h>
@ -599,13 +599,13 @@ ahci_intr(void *v)
AHCIDEBUG_PRINT(("%s ahci_intr 0x%x\n", AHCINAME(sc), is),
DEBUG_INTR);
r = 1;
AHCI_WRITE(sc, AHCI_IS, is);
ports = is;
while ((bit = ffs(ports)) != 0) {
bit--;
ahci_intr_port(&sc->sc_channels[bit]);
ports &= ~(1U << bit);
}
AHCI_WRITE(sc, AHCI_IS, is);
}
return r;