[src/trunk]: src/sys/arch/x86/acpi Handle ISA/EISA interrupts like isa_machde...

[mlelstv <mlelstv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/70b82d969f0d
branches:  trunk
changeset: 450943:70b82d969f0d
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Wed May 01 07:26:28 2019 +0000

description:
Handle ISA/EISA interrupts like isa_machdep.c.

diffstat:

 sys/arch/x86/acpi/acpi_machdep.c |  87 +++++++++++++++++++++++++--------------
 1 files changed, 55 insertions(+), 32 deletions(-)

diffs (149 lines):

diff -r e60078081a59 -r 70b82d969f0d sys/arch/x86/acpi/acpi_machdep.c
--- a/sys/arch/x86/acpi/acpi_machdep.c  Wed May 01 07:23:22 2019 +0000
+++ b/sys/arch/x86/acpi/acpi_machdep.c  Wed May 01 07:26:28 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_machdep.c,v 1.25 2019/03/09 10:04:41 kre Exp $ */
+/* $NetBSD: acpi_machdep.c,v 1.26 2019/05/01 07:26:28 mlelstv Exp $ */
 
 /*
  * Copyright 2001 Wasabi Systems, Inc.
@@ -40,7 +40,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_machdep.c,v 1.25 2019/03/09 10:04:41 kre Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_machdep.c,v 1.26 2019/05/01 07:26:28 mlelstv Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -174,11 +174,12 @@
 {
        void *ih;
        struct pic *pic;
-       int irq, pin;
+       int irq = InterruptNumber, pin;
 #if NIOAPIC > 0
-       struct ioapic_softc *sc;
+       struct ioapic_softc *ioapic;
        struct acpi_md_override ovr;
        struct mp_intr_map tmpmap, *mip, **mipp = NULL;
+       intr_handle_t mpih;
        int redir, mpflags;
 
        /*
@@ -188,12 +189,11 @@
        mpflags = (MPS_INTTR_LEVEL << 2) | MPS_INTPO_ACTLO;
        redir = IOAPIC_REDLO_LEVEL | IOAPIC_REDLO_ACTLO;
 
-
        /*
         * Apply any MADT override setting.
         */
 
-       ovr.irq = InterruptNumber;
+       ovr.irq = irq;
        ovr.pin = -1;
        if (acpi_madt_map() == AE_OK) {
                acpi_madt_walk(acpi_md_findoverride, &ovr);
@@ -203,11 +203,11 @@
        }
 
        if (ovr.pin != -1) {
-               bool sci = InterruptNumber == AcpiGbl_FADT.SciInterrupt;
+               bool sci = irq == AcpiGbl_FADT.SciInterrupt;
                int polarity = ovr.flags & ACPI_MADT_POLARITY_MASK;
                int trigger = ovr.flags & ACPI_MADT_TRIGGER_MASK;
 
-               InterruptNumber = ovr.pin;
+               irq = ovr.pin;
                if (polarity == ACPI_MADT_POLARITY_ACTIVE_HIGH ||
                    (!sci && polarity == ACPI_MADT_POLARITY_CONFORMS)) {
                        mpflags &= ~MPS_INTPO_ACTLO;
@@ -223,40 +223,63 @@
                }
        }
 
+       pic = NULL;
+       pin = irq;
+
        /*
         * If the interrupt is handled via IOAPIC, update the map.
         * If the map isn't set up yet, install a temporary one.
+        * Identify ISA & EISA interrupts
         */
-
-       sc = ioapic_find_bybase(InterruptNumber);
-       if (sc != NULL) {
-               pic = &sc->sc_pic;
-
-               if (pic->pic_type == PIC_IOAPIC) {
-                       pin = (int)InterruptNumber - pic->pic_vecbase;
-                       irq = -1;
-               } else {
-                       irq = pin = (int)InterruptNumber;
+       if (mp_busses != NULL) {
+               if (intr_find_mpmapping(mp_isa_bus, irq, &mpih) == 0 ||
+                   intr_find_mpmapping(mp_eisa_bus, irq, &mpih) == 0) {
+                       if (!APIC_IRQ_ISLEGACY(mpih)) {
+                               pin = APIC_IRQ_PIN(mpih);
+                               ioapic = ioapic_find(APIC_IRQ_APIC(mpih));
+                               if (ioapic != NULL)
+                                       pic = &ioapic->sc_pic;
+                       }
                }
+       }
 
-               mip = sc->sc_pins[pin].ip_map;
-               if (mip) {
-                       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;
-                       tmpmap.flags = mpflags;
+       if (pic == NULL) {
+               /*
+                * If the interrupt is handled via IOAPIC, update the map.
+                * If the map isn't set up yet, install a temporary one.
+                */
+               ioapic = ioapic_find_bybase(irq);
+               if (ioapic != NULL) {
+                       pic = &ioapic->sc_pic;
+ 
+                       if (pic->pic_type == PIC_IOAPIC) {
+                               pin = irq - pic->pic_vecbase;
+                               irq = -1;
+                       } else {
+                               pin = irq;
+                       }
+ 
+                       mip = ioapic->sc_pins[pin].ip_map;
+                       if (mip) {
+                               mip->flags &= ~0xf;
+                               mip->flags |= mpflags;
+                               mip->redir &= ~(IOAPIC_REDLO_LEVEL |
+                                               IOAPIC_REDLO_ACTLO);
+                               mip->redir |= redir;
+                       } else {
+                               mipp = &ioapic->sc_pins[pin].ip_map;
+                               *mipp = &tmpmap;
+                               tmpmap.redir = redir;
+                               tmpmap.flags = mpflags;
+                       }
                }
-       } else
+       }
+ 
+       if (pic == NULL)
 #endif
        {
                pic = &i8259_pic;
-               irq = pin = (int)InterruptNumber;
+               pin = irq;
        }
 
        ih = intr_establish_xname(irq, pic, pin, type, ipl,