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[src/trunk]: src/sys/arch/x86 redo the ACPI interrupt handler setup again, th...
details: https://anonhg.NetBSD.org/src/rev/3f696b774b94
branches: trunk
changeset: 785694:3f696b774b94
user: chs <chs%NetBSD.org@localhost>
date: Mon Mar 25 01:30:37 2013 +0000
description:
redo the ACPI interrupt handler setup again, this time handling
MADT overrides that change the pin as well as the polarity.
fixes PR 47648.
diffstat:
sys/arch/x86/acpi/acpi_machdep.c | 125 +++++++++++++++++++++++++++-----------
sys/arch/x86/x86/mpacpi.c | 16 +----
2 files changed, 90 insertions(+), 51 deletions(-)
diffs (233 lines):
diff -r aef7839a29a6 -r 3f696b774b94 sys/arch/x86/acpi/acpi_machdep.c
--- a/sys/arch/x86/acpi/acpi_machdep.c Mon Mar 25 01:11:02 2013 +0000
+++ b/sys/arch/x86/acpi/acpi_machdep.c Mon Mar 25 01:30:37 2013 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_machdep.c,v 1.4 2012/09/23 00:31:05 chs Exp $ */
+/* $NetBSD: acpi_machdep.c,v 1.5 2013/03/25 01:30:37 chs Exp $ */
/*
* Copyright 2001 Wasabi Systems, Inc.
@@ -40,7 +40,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_machdep.c,v 1.4 2012/09/23 00:31:05 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_machdep.c,v 1.5 2013/03/25 01:30:37 chs Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -93,6 +93,31 @@
return PhysicalAddress;
}
+struct acpi_md_override {
+ int irq;
+ int pin;
+ int flags;
+};
+
+static ACPI_STATUS
+acpi_md_findoverride(ACPI_SUBTABLE_HEADER *hdrp, void *aux)
+{
+ ACPI_MADT_INTERRUPT_OVERRIDE *iop;
+ struct acpi_md_override *ovrp;
+
+ if (hdrp->Type != ACPI_MADT_TYPE_INTERRUPT_OVERRIDE) {
+ return AE_OK;
+ }
+
+ iop = (void *)hdrp;
+ ovrp = aux;
+ if (iop->SourceIrq == ovrp->irq) {
+ ovrp->pin = iop->GlobalIrq;
+ ovrp->flags = iop->IntiFlags;
+ }
+ return AE_OK;
+}
+
ACPI_STATUS
acpi_md_OsInstallInterruptHandler(uint32_t InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine, void *Context, void **cookiep)
@@ -101,41 +126,61 @@
struct pic *pic;
#if NIOAPIC > 0
struct ioapic_softc *sc;
+ struct acpi_md_override ovr;
+ struct mp_intr_map tmpmap, *mip, **mipp = NULL;
#endif
- int irq, pin, trigger;
+ int irq, pin, type, redir, mpflags;
+
+ /*
+ * ACPI interrupts default to level-triggered active-low.
+ */
+
+ type = IST_LEVEL;
+ mpflags = (MPS_INTTR_LEVEL << 2) | MPS_INTPO_ACTLO;
+ redir = IOAPIC_REDLO_LEVEL | IOAPIC_REDLO_ACTLO;
#if NIOAPIC > 0
- /*
- * Can only match on ACPI global interrupt numbers if the ACPI
- * interrupt info was extracted, which is in the ACPI case.
- */
- if (mpacpi_sci_override != NULL) {
- pic = mpacpi_sci_override->ioapic;
- pin = mpacpi_sci_override->ioapic_pin;
- if (mpacpi_sci_override->redir & IOAPIC_REDLO_LEVEL)
- trigger = IST_LEVEL;
- else
- trigger = IST_EDGE;
- if (pic->pic_type == PIC_IOAPIC)
- irq = -1;
- else
- irq = (int)InterruptNumber;
- goto sci_override;
- }
-#endif
/*
- * There was no ACPI interrupt source override,
- *
- * If the interrupt is handled via IOAPIC, mark it
- * as level-triggered, active low in the table.
+ * Apply any MADT override setting.
*/
-#if NIOAPIC > 0
+ ovr.irq = InterruptNumber;
+ ovr.pin = -1;
+ if (acpi_madt_map() == AE_OK) {
+ acpi_madt_walk(acpi_md_findoverride, &ovr);
+ acpi_madt_unmap();
+ } else {
+ aprint_debug("acpi_madt_map() failed, can't check for MADT override\n");
+ }
+
+ if (ovr.pin != -1) {
+ bool sci = InterruptNumber == AcpiGbl_FADT.SciInterrupt;
+ int polarity = ovr.flags & ACPI_MADT_POLARITY_MASK;
+ int trigger = ovr.flags & ACPI_MADT_TRIGGER_MASK;
+
+ InterruptNumber = ovr.pin;
+ if (polarity == ACPI_MADT_POLARITY_ACTIVE_HIGH ||
+ (!sci && polarity == ACPI_MADT_POLARITY_CONFORMS)) {
+ mpflags &= ~MPS_INTPO_ACTLO;
+ redir &= ~IOAPIC_REDLO_ACTLO;
+ }
+ if (trigger == ACPI_MADT_TRIGGER_EDGE ||
+ (!sci && trigger == ACPI_MADT_TRIGGER_CONFORMS)) {
+ type = IST_EDGE;
+ mpflags &= ~(MPS_INTTR_LEVEL << 2);
+ redir &= ~IOAPIC_REDLO_LEVEL;
+ }
+ }
+
+ /*
+ * If the interrupt is handled via IOAPIC, update the map.
+ * If the map isn't set up yet, install a temporary one.
+ */
+
sc = ioapic_find_bybase(InterruptNumber);
if (sc != NULL) {
pic = &sc->sc_pic;
- struct mp_intr_map *mip;
if (pic->pic_type == PIC_IOAPIC) {
pin = (int)InterruptNumber - pic->pic_vecbase;
@@ -146,9 +191,15 @@
mip = sc->sc_pins[pin].ip_map;
if (mip) {
- mip->flags &= ~3;
- mip->flags |= MPS_INTPO_ACTLO;
- mip->redir |= IOAPIC_REDLO_ACTLO;
+ mip->flags &= ~0xf;
+ mip->flags |= mpflags;
+ mip->redir &= ~(IOAPIC_REDLO_LEVEL |
+ IOAPIC_REDLO_ACTLO);
+ mip->redir |= redir;
+ } else {
+ mipp = &sc->sc_pins[pin].ip_map;
+ *mipp = &tmpmap;
+ tmpmap.redir = redir;
}
} else
#endif
@@ -157,18 +208,18 @@
irq = pin = (int)InterruptNumber;
}
- trigger = IST_LEVEL;
-
-#if NIOAPIC > 0
-sci_override:
-#endif
-
/*
* XXX probably, IPL_BIO is enough.
*/
- ih = intr_establish(irq, pic, pin, trigger, IPL_TTY,
+ ih = intr_establish(irq, pic, pin, type, IPL_TTY,
(int (*)(void *)) ServiceRoutine, Context, false);
+#if NIOAPIC > 0
+ if (mipp) {
+ *mipp = NULL;
+ }
+#endif
+
if (ih == NULL)
return AE_NO_MEMORY;
diff -r aef7839a29a6 -r 3f696b774b94 sys/arch/x86/x86/mpacpi.c
--- a/sys/arch/x86/x86/mpacpi.c Mon Mar 25 01:11:02 2013 +0000
+++ b/sys/arch/x86/x86/mpacpi.c Mon Mar 25 01:30:37 2013 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mpacpi.c,v 1.96 2012/10/03 17:04:25 chs Exp $ */
+/* $NetBSD: mpacpi.c,v 1.97 2013/03/25 01:30:37 chs Exp $ */
/*
* Copyright (c) 2003 Wasabi Systems, Inc.
@@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mpacpi.c,v 1.96 2012/10/03 17:04:25 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mpacpi.c,v 1.97 2013/03/25 01:30:37 chs Exp $");
#include "acpica.h"
#include "opt_acpi.h"
@@ -133,8 +133,6 @@
static int mpacpi_npciroots;
#endif
-struct mp_intr_map *mpacpi_sci_override;
-
static int mpacpi_intr_index;
static paddr_t mpacpi_lapic_base = LAPIC_BASE;
@@ -299,9 +297,6 @@
if (pic->pic_type == PIC_IOAPIC)
pic->pic_ioapic->sc_pins[pin].ip_map = mpi;
#endif
- if (isa_ovr->SourceIrq == AcpiGbl_FADT.SciInterrupt)
- mpacpi_sci_override = mpi;
-
break;
case ACPI_MADT_TYPE_LOCAL_X2APIC_NMI:
@@ -942,13 +937,6 @@
printf("mpacpi: %d PCI busses\n", mpacpi_npci);
#endif
mpacpi_config_irouting(acpi);
-#if NIOAPIC > 0
- /*
- * XXX fix up the SCI interrupt polarity.
- * it's installed before we have parsed the MADT.
- */
- ioapic_reenable();
-#endif
if (mp_verbose)
for (i = 0; i < mp_nintr; i++)
mpacpi_print_intr(&mp_intrs[i]);
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