void *
pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
int (*func)(void *), void *arg, char *what)
{
int pin, irq;
struct pic *pic;
pic = &i8259_pic;
pin = irq = ih;
#if NIOAPIC > 0
if (ih & APIC_INT_VIA_APIC) {
pic = (struct pic *)ioapic_find(APIC_IRQ_APIC(ih));
if (pic == NULL) {
printf("pci_intr_establish: bad ioapic %d\n",
APIC_IRQ_APIC(ih));
return NULL;
}
pin = APIC_IRQ_PIN(ih);
irq = APIC_IRQ_LEGACY_IRQ(ih);
if (irq < 0 || irq >= NUM_LEGACY_IRQS)
irq = -1;
}
#endif
return intr_establish(irq, pic, pin, IST_LEVEL, level, func, arg, what);
}
void *
pci_intr_establish_xname(pci_chipset_tag_t pc, pci_intr_handle_t ih,
int level, int (*func)(void *), void *arg, const char *xname)
{
int pin, irq;
struct pic *pic;
#if NIOAPIC > 0
struct ioapic_softc *ioapic;
#endif
bool mpsafe;
pci_chipset_tag_t ipc;
for (ipc = pc; ipc != NULL; ipc = ipc->pc_super) {
if ((ipc->pc_present & PCI_OVERRIDE_INTR_ESTABLISH) == 0)
continue;
return (*ipc->pc_ov->ov_intr_establish)(ipc->pc_ctx,
pc, ih, level, func, arg);
}
if (INT_VIA_MSI(ih)) {
if (MSI_INT_IS_MSIX(ih))
return x86_pci_msix_establish(pc, ih, level, func, arg,
xname);
else
return x86_pci_msi_establish(pc, ih, level, func, arg,
xname);
}
pic = &i8259_pic;
pin = irq = APIC_IRQ_LEGACY_IRQ(ih);
mpsafe = ((ih & MPSAFE_MASK) != 0);
#if NIOAPIC > 0
if (ih & APIC_INT_VIA_APIC) {
ioapic = ioapic_find(APIC_IRQ_APIC(ih));
if (ioapic == NULL) {
aprint_normal("pci_intr_establish: bad ioapic %d\n",
APIC_IRQ_APIC(ih));
return NULL;
}
pic = &ioapic->sc_pic;
pin = APIC_IRQ_PIN(ih);
irq = APIC_IRQ_LEGACY_IRQ(ih);
if (irq < 0 || irq >= NUM_LEGACY_IRQS)
irq = -1;
}
#endif
return intr_establish_xname(irq, pic, pin, IST_LEVEL, level, func, arg,
mpsafe, xname);
}
void *
pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
int (*func)(void *), void *arg, const char *what)
{
int pin, irq;
int bus, dev;
pcitag_t tag = ih.tag;
struct pic *pic;
if (ih.line & APIC_INT_VIA_MSG) {
return intr_establish(-1, &msi_pic, tag, IST_PULSE, level,
func, arg, what);
}
pci_decompose_tag(pc, ih.tag, &bus, &dev, NULL);
#if NACPIPRT > 0
acpiprt_route_interrupt(bus, dev, ih.pin);
#endif
pic = &i8259_pic;
pin = irq = ih.line;
#if NIOAPIC > 0
if (ih.line & APIC_INT_VIA_APIC) {
pic = (struct pic *)ioapic_find(APIC_IRQ_APIC(ih.line));
if (pic == NULL) {
printf("pci_intr_establish: bad ioapic %d\n",
APIC_IRQ_APIC(ih.line));
return NULL;
}
pin = APIC_IRQ_PIN(ih.line);
irq = APIC_IRQ_LEGACY_IRQ(ih.line);
if (irq < 0 || irq >= NUM_LEGACY_IRQS)
irq = -1;
}
#endif
return intr_establish(irq, pic, pin, IST_LEVEL, level, func, arg, what);
}
void *
pci_intr_establish(pci_chipset_tag_t pcitag, pci_intr_handle_t intrh,
int level, int (*func)(void *), void *arg)
{
char evname[16];
#if NIOAPIC > 0
struct ioapic_softc *pic;
if (intrh.pirq & APIC_INT_VIA_APIC) {
pic = ioapic_find(APIC_IRQ_APIC(intrh.pirq));
if (pic == NULL) {
printf("pci_intr_establish: bad ioapic %d\n",
APIC_IRQ_APIC(intrh.pirq));
return NULL;
}
snprintf(evname, sizeof(evname), "%s pin %d",
device_xname(pic->sc_dev), APIC_IRQ_PIN(intrh.pirq));
} else
#endif
snprintf(evname, sizeof(evname), "irq%d", intrh.pirq);
return (void *)pirq_establish(intrh.pirq & 0xff,
intrh.evtch, func, arg, level, evname);
}
const char
*pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih)
{
static char buf[64];
#if NIOAPIC > 0
struct ioapic_softc *pic;
if (ih.pirq & APIC_INT_VIA_APIC) {
pic = ioapic_find(APIC_IRQ_APIC(ih.pirq));
if (pic == NULL) {
printf("pci_intr_string: bad ioapic %d\n",
APIC_IRQ_APIC(ih.pirq));
return NULL;
}
snprintf(buf, 64, "%s pin %d, event channel %d",
device_xname(pic->sc_dev), APIC_IRQ_PIN(ih.pirq),
ih.evtch);
return buf;
}
#endif
snprintf(buf, 64, "irq %d, event channel %d",
ih.pirq, ih.evtch);
return buf;
}
void *
isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level,
int (*ih_fun)(void *), void *ih_arg)
{
struct pic *pic;
int pin;
#if NIOAPIC > 0
int mpih;
struct ioapic_softc *ioapic;
#endif
pin = irq;
pic = &i8259_pic;
#if NIOAPIC > 0
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) {
printf("isa_intr_establish: "
"unknown apic %d\n",
APIC_IRQ_APIC(mpih));
return NULL;
}
pic = &ioapic->sc_pic;
}
} else
printf("isa_intr_establish: no MP mapping found\n");
}
#endif
return intr_establish(irq, pic, pin, type, level, ih_fun, ih_arg,
false);
}
/*
* can't use bus_space_xxx as we don't have a bus handle ...
*/
void
ioapic_attach(struct device *parent, struct device *self, void *aux)
{
struct ioapic_softc *sc = (struct ioapic_softc *)self;
struct apic_attach_args *aaa = (struct apic_attach_args *) aux;
int apic_id;
bus_space_handle_t bh;
u_int32_t ver_sz;
int i;
sc->sc_flags = aaa->flags;
sc->sc_apicid = aaa->apic_id;
printf(" apid %d", aaa->apic_id);
if (ioapic_find(aaa->apic_id) != NULL) {
printf(", duplicate apic id (ignored)\n");
return;
}
ioapic_add(sc);
printf(" pa 0x%lx", aaa->apic_address);
if (x86_mem_add_mapping(aaa->apic_address, PAGE_SIZE, 0, &bh) != 0) {
printf(", map failed\n");
return;
}
sc->sc_reg = (volatile u_int32_t *)(bh + IOAPIC_REG);
sc->sc_data = (volatile u_int32_t *)(bh + IOAPIC_DATA);
sc->sc_pic.pic_type = PIC_IOAPIC;
mtx_init(&sc->sc_pic.pic_mutex, IPL_NONE);
sc->sc_pic.pic_hwmask = ioapic_hwmask;
sc->sc_pic.pic_hwunmask = ioapic_hwunmask;
sc->sc_pic.pic_addroute = ioapic_addroute;
sc->sc_pic.pic_delroute = ioapic_delroute;
sc->sc_pic.pic_edge_stubs = ioapic_edge_stubs;
sc->sc_pic.pic_level_stubs = ioapic_level_stubs;
ver_sz = ioapic_read(sc, IOAPIC_VER);
sc->sc_apic_vers = (ver_sz & IOAPIC_VER_MASK) >> IOAPIC_VER_SHIFT;
sc->sc_apic_sz = (ver_sz & IOAPIC_MAX_MASK) >> IOAPIC_MAX_SHIFT;
sc->sc_apic_sz++;
if (aaa->apic_vecbase != -1)
sc->sc_apic_vecbase = aaa->apic_vecbase;
else {
/*
* XXX this assumes ordering of ioapics in the table.
* Only needed for broken BIOS workaround (see mpbios.c)
*/
sc->sc_apic_vecbase = ioapic_vecbase;
ioapic_vecbase += sc->sc_apic_sz;
}
if (mp_verbose) {
printf(", %s mode",
aaa->flags & IOAPIC_PICMODE ? "PIC" : "virtual wire");
}
printf(", version %x, %d pins\n", sc->sc_apic_vers, sc->sc_apic_sz);
apic_id = (ioapic_read(sc, IOAPIC_ID) & IOAPIC_ID_MASK) >>
IOAPIC_ID_SHIFT;
sc->sc_pins = malloc(sizeof(struct ioapic_pin) * sc->sc_apic_sz,
M_DEVBUF, M_WAITOK);
for (i=0; i<sc->sc_apic_sz; i++) {
sc->sc_pins[i].ip_next = NULL;
sc->sc_pins[i].ip_map = NULL;
sc->sc_pins[i].ip_vector = 0;
sc->sc_pins[i].ip_type = IST_NONE;
}
/*
* In case the APIC is not initialized to the correct ID
* do it now.
* Maybe we should record the original ID for interrupt
* mapping later ...
*/
if (apic_id != sc->sc_apicid) {
printf("%s: misconfigured as apic %d",
sc->sc_pic.pic_dev.dv_xname, apic_id);
ioapic_set_id(sc);
}
#if 0
/* output of this was boring. */
if (mp_verbose)
for (i=0; i<sc->sc_apic_sz; i++)
ioapic_print_redir(sc, "boot", i);
#endif
}
