static void ppbattach(device_t parent, device_t self, void *aux) { struct ppb_softc *sc = device_private(self); struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; struct pcibus_attach_args pba; pcireg_t busdata; pci_aprint_devinfo(pa, NULL); sc->sc_pc = pc; sc->sc_tag = pa->pa_tag; sc->sc_dev = self; busdata = pci_conf_read(pc, pa->pa_tag, PPB_REG_BUSINFO); if (PPB_BUSINFO_SECONDARY(busdata) == 0) { aprint_normal_dev(self, "not configured by system firmware\n"); return; } ppb_fix_pcie(self); #if 0 /* * XXX can't do this, because we're not given our bus number * (we shouldn't need it), and because we've no way to * decompose our tag. */ /* sanity check. */ if (pa->pa_bus != PPB_BUSINFO_PRIMARY(busdata)) panic("ppbattach: bus in tag (%d) != bus in reg (%d)", pa->pa_bus, PPB_BUSINFO_PRIMARY(busdata)); #endif if (!pmf_device_register(self, ppb_suspend, ppb_resume)) aprint_error_dev(self, "couldn't establish power handler\n"); /* * Attach the PCI bus than hangs off of it. * * XXX Don't pass-through Memory Read Multiple. Should we? * XXX Consult the spec... */ pba.pba_iot = pa->pa_iot; pba.pba_memt = pa->pa_memt; pba.pba_dmat = pa->pa_dmat; pba.pba_dmat64 = pa->pa_dmat64; pba.pba_pc = pc; pba.pba_flags = pa->pa_flags & ~PCI_FLAGS_MRM_OKAY; pba.pba_bus = PPB_BUSINFO_SECONDARY(busdata); pba.pba_sub = PPB_BUSINFO_SUBORDINATE(busdata); pba.pba_bridgetag = &sc->sc_tag; pba.pba_intrswiz = pa->pa_intrswiz; pba.pba_intrtag = pa->pa_intrtag; config_found_ia(self, "pcibus", &pba, pcibusprint); }
static int i80312_pci_conf_setup(struct i80312_softc *sc, pcitag_t tag, int offset, struct pciconf_state *ps) { pcireg_t binfo; int pbus, sbus; if ((unsigned int)offset >= PCI_CONF_SIZE) return (1); i80312_pci_decompose_tag(sc, tag, &ps->ps_b, &ps->ps_d, &ps->ps_f); binfo = bus_space_read_4(sc->sc_st, sc->sc_ppb_sh, PPB_REG_BUSINFO); pbus = PPB_BUSINFO_PRIMARY(binfo); sbus = PPB_BUSINFO_SECONDARY(binfo); /* * If the bus # is the Primary bus #, use the Primary * Address/Data registers, otherwise use the Secondary * Address/Data registers. */ if (ps->ps_b == pbus) { ps->ps_addr_reg = I80312_ATU_POCCA; ps->ps_data_reg = I80312_ATU_POCCD; ps->ps_csr_reg = PCI_COMMAND_STATUS_REG; } else { ps->ps_addr_reg = I80312_ATU_SOCCA; ps->ps_data_reg = I80312_ATU_SOCCD; ps->ps_csr_reg = I80312_ATU_SACS; } /* * If the bus # is the Primary or Secondary bus #, then use * Type 0 cycles, else use Type 1. * * XXX We should filter out all non-private devices here! * XXX How does private space interact with PCI-PCI bridges? */ if (ps->ps_b == pbus || ps->ps_b == sbus) { if (ps->ps_d > (31 - 11)) return (1); ps->ps_addr_val = (1U << (ps->ps_d + 11)) | (ps->ps_f << 8) | offset; } else { /* The tag is already in the correct format. */ ps->ps_addr_val = tag | offset | 1; } return (0); }
void i80312_pci_init(pci_chipset_tag_t pc, void *cookie) { #if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) struct i80312_softc *sc = cookie; struct extent *ioext, *memext; pcireg_t binfo; int sbus; #endif pc->pc_conf_v = cookie; pc->pc_attach_hook = i80312_pci_attach_hook; pc->pc_bus_maxdevs = i80312_pci_bus_maxdevs; pc->pc_make_tag = i80312_pci_make_tag; pc->pc_decompose_tag = i80312_pci_decompose_tag; pc->pc_conf_read = i80312_pci_conf_read; pc->pc_conf_write = i80312_pci_conf_write; pc->pc_conf_interrupt = i80312_pci_conf_interrupt; #if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) /* * Configure the PCI bus. * * XXX We need to revisit this. We only configure the Secondary * bus (and its children). The bus configure code needs changes * to support how the busses are arranged on this chip. We also * need to only configure devices in the private device space on * the Secondary bus. */ binfo = bus_space_read_4(sc->sc_st, sc->sc_ppb_sh, PPB_REG_BUSINFO); /* pbus = PPB_BUSINFO_PRIMARY(binfo); */ sbus = PPB_BUSINFO_SECONDARY(binfo); ioext = extent_create("pciio", sc->sc_sioout_base, sc->sc_sioout_base + sc->sc_sioout_size - 1, NULL, 0, EX_NOWAIT); memext = extent_create("pcimem", sc->sc_smemout_base, sc->sc_smemout_base + sc->sc_smemout_size - 1, NULL, 0, EX_NOWAIT); aprint_normal_dev(sc->sc_dev, "configuring Secondary PCI bus\n"); pci_configure_bus(pc, ioext, memext, NULL, sbus, arm_dcache_align); extent_destroy(ioext); extent_destroy(memext); #endif }
int iq80310_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) { struct i80312_softc *sc = pa->pa_pc->pc_intr_v; pcireg_t reg; int sbus; /* * The Npwr routes #INTA of the on-board PCI devices directly * through the CPLD. There is no PCI-PCI bridge and no PCI * slots on the Npwr. * * We also expect the devices to be on the Secondary side of * the i80312. */ reg = bus_space_read_4(sc->sc_st, sc->sc_ppb_sh, PPB_REG_BUSINFO); sbus = PPB_BUSINFO_SECONDARY(reg); if (pa->pa_bus != sbus) { printf("iq80310_pci_intr_map: %d/%d/%d not on Secondary bus\n", pa->pa_bus, pa->pa_device, pa->pa_function); return (1); } switch (pa->pa_device) { case 5: /* LSI 53c1010 SCSI */ *ihp = XINT3_IRQ(2); break; case 6: /* Intel i82544GC Gig-E #1 */ *ihp = XINT3_IRQ(1); break; case 7: /* Intel i82544GC Gig-E #2 */ *ihp = XINT3_IRQ(4); break; default: printf("iq80310_pci_intr_map: no mapping for %d/%d/%d\n", pa->pa_bus, pa->pa_device, pa->pa_function); return (1); } return (0); }
void ppb_alloc_resources(struct ppb_softc *sc, struct pci_attach_args *pa) { pci_chipset_tag_t pc = sc->sc_pc; pcireg_t id, busdata, blr, bhlcr, type, csr; pcireg_t addr, mask; pcitag_t tag; int bus, dev; int reg, reg_start, reg_end, reg_rom; int io_count = 0; int mem_count = 0; bus_addr_t start, end; u_long base, size; if (pa->pa_memex == NULL) return; busdata = pci_conf_read(pc, sc->sc_tag, PPB_REG_BUSINFO); bus = PPB_BUSINFO_SECONDARY(busdata); if (bus == 0) return; /* * Count number of devices. If there are no devices behind * this bridge, there's no point in allocating any address * space. */ for (dev = 0; dev < pci_bus_maxdevs(pc, bus); dev++) { tag = pci_make_tag(pc, bus, dev, 0); id = pci_conf_read(pc, tag, PCI_ID_REG); if (PCI_VENDOR(id) == PCI_VENDOR_INVALID || PCI_VENDOR(id) == 0) continue; bhlcr = pci_conf_read(pc, tag, PCI_BHLC_REG); switch (PCI_HDRTYPE_TYPE(bhlcr)) { case 0: reg_start = PCI_MAPREG_START; reg_end = PCI_MAPREG_END; reg_rom = PCI_ROM_REG; break; case 1: /* PCI-PCI bridge */ reg_start = PCI_MAPREG_START; reg_end = PCI_MAPREG_PPB_END; reg_rom = 0; /* 0x38 */ break; case 2: /* PCI-Cardbus bridge */ reg_start = PCI_MAPREG_START; reg_end = PCI_MAPREG_PCB_END; reg_rom = 0; break; default: return; } for (reg = reg_start; reg < reg_end; reg += 4) { if (pci_mapreg_probe(pc, tag, reg, &type) == 0) continue; if (type == PCI_MAPREG_TYPE_IO) io_count++; else mem_count++; } if (reg_rom != 0) { addr = pci_conf_read(pc, tag, reg_rom); pci_conf_write(pc, tag, reg_rom, ~PCI_ROM_ENABLE); mask = pci_conf_read(pc, tag, reg_rom); pci_conf_write(pc, tag, reg_rom, addr); if (PCI_ROM_SIZE(mask)) mem_count++; } } csr = pci_conf_read(pc, sc->sc_tag, PCI_COMMAND_STATUS_REG); /* * Get the bridge in a consistent state. If memory mapped I/O * is disabled, disabled the associated windows as well. */ if ((csr & PCI_COMMAND_MEM_ENABLE) == 0) { pci_conf_write(pc, sc->sc_tag, PPB_REG_MEM, 0x0000ffff); pci_conf_write(pc, sc->sc_tag, PPB_REG_PREFMEM, 0x0000ffff); pci_conf_write(pc, sc->sc_tag, PPB_REG_PREFBASE_HI32, 0); pci_conf_write(pc, sc->sc_tag, PPB_REG_PREFLIM_HI32, 0); } /* Allocate I/O address space if necessary. */ if (io_count > 0 && pa->pa_ioex) { blr = pci_conf_read(pc, sc->sc_tag, PPB_REG_IOSTATUS); sc->sc_iobase = (blr << PPB_IO_SHIFT) & PPB_IO_MASK; sc->sc_iolimit = (blr & PPB_IO_MASK) | 0x00000fff; blr = pci_conf_read(pc, sc->sc_tag, PPB_REG_IO_HI); sc->sc_iobase |= (blr & 0x0000ffff) << 16; sc->sc_iolimit |= (blr & 0xffff0000); if (sc->sc_iolimit < sc->sc_iobase || sc->sc_iobase == 0) { start = max(PCI_IO_START, pa->pa_ioex->ex_start); end = min(PCI_IO_END, pa->pa_ioex->ex_end); for (size = 0x2000; size >= PPB_IO_MIN; size >>= 1) if (extent_alloc_subregion(pa->pa_ioex, start, end, size, size, 0, 0, 0, &base) == 0) break; if (size >= PPB_IO_MIN) { sc->sc_iobase = base; sc->sc_iolimit = base + size - 1; blr = pci_conf_read(pc, sc->sc_tag, PPB_REG_IOSTATUS); blr &= 0xffff0000; blr |= sc->sc_iolimit & PPB_IO_MASK; blr |= (sc->sc_iobase >> PPB_IO_SHIFT); pci_conf_write(pc, sc->sc_tag, PPB_REG_IOSTATUS, blr); blr = (sc->sc_iobase & 0xffff0000) >> 16; blr |= sc->sc_iolimit & 0xffff0000; pci_conf_write(pc, sc->sc_tag, PPB_REG_IO_HI, blr); csr |= PCI_COMMAND_IO_ENABLE; }
void ppbattach(struct device *parent, struct device *self, void *aux) { struct ppb_softc *sc = (struct ppb_softc *)self; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; struct pcibus_attach_args pba; pci_intr_handle_t ih; pcireg_t busdata, reg, blr; char *name; int pin; sc->sc_pc = pc; sc->sc_tag = pa->pa_tag; busdata = pci_conf_read(pc, pa->pa_tag, PPB_REG_BUSINFO); if (PPB_BUSINFO_SECONDARY(busdata) == 0) { printf(": not configured by system firmware\n"); return; } #if 0 /* * XXX can't do this, because we're not given our bus number * (we shouldn't need it), and because we've no way to * decompose our tag. */ /* sanity check. */ if (pa->pa_bus != PPB_BUSINFO_PRIMARY(busdata)) panic("ppbattach: bus in tag (%d) != bus in reg (%d)", pa->pa_bus, PPB_BUSINFO_PRIMARY(busdata)); #endif /* Check for PCI Express capabilities and setup hotplug support. */ if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PCIEXPRESS, &sc->sc_cap_off, ®) && (reg & PCI_PCIE_XCAP_SI)) { #ifdef __i386__ if (pci_intr_map(pa, &ih) == 0) sc->sc_intrhand = pci_intr_establish(pc, ih, IPL_BIO, ppb_intr, sc, self->dv_xname); #else if (pci_intr_map_msi(pa, &ih) == 0 || pci_intr_map(pa, &ih) == 0) sc->sc_intrhand = pci_intr_establish(pc, ih, IPL_BIO, ppb_intr, sc, self->dv_xname); #endif if (sc->sc_intrhand) { printf(": %s", pci_intr_string(pc, ih)); /* Enable hotplug interrupt. */ reg = pci_conf_read(pc, pa->pa_tag, sc->sc_cap_off + PCI_PCIE_SLCSR); reg |= (PCI_PCIE_SLCSR_HPE | PCI_PCIE_SLCSR_PDE); pci_conf_write(pc, pa->pa_tag, sc->sc_cap_off + PCI_PCIE_SLCSR, reg); timeout_set(&sc->sc_to, ppb_hotplug_insert_finish, sc); } } printf("\n"); if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL || (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_82801BA_HPB && PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_82801BAM_HPB)) ppb_alloc_resources(sc, pa); for (pin = PCI_INTERRUPT_PIN_A; pin <= PCI_INTERRUPT_PIN_D; pin++) { pa->pa_intrpin = pa->pa_rawintrpin = pin; pa->pa_intrline = 0; pci_intr_map(pa, &sc->sc_ih[pin - PCI_INTERRUPT_PIN_A]); } /* * The UltraSPARC-IIi APB doesn't implement the standard * address range registers. */ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_SIMBA) goto attach; /* Figure out the I/O address range of the bridge. */ blr = pci_conf_read(pc, pa->pa_tag, PPB_REG_IOSTATUS); sc->sc_iobase = (blr & 0x000000f0) << 8; sc->sc_iolimit = (blr & 0x000f000) | 0x00000fff; blr = pci_conf_read(pc, pa->pa_tag, PPB_REG_IO_HI); sc->sc_iobase |= (blr & 0x0000ffff) << 16; sc->sc_iolimit |= (blr & 0xffff0000); if (sc->sc_iolimit > sc->sc_iobase) { name = malloc(32, M_DEVBUF, M_NOWAIT); if (name) { snprintf(name, 32, "%s pciio", sc->sc_dev.dv_xname); sc->sc_ioex = extent_create(name, 0, 0xffffffff, M_DEVBUF, NULL, 0, EX_NOWAIT | EX_FILLED); extent_free(sc->sc_ioex, sc->sc_iobase, sc->sc_iolimit - sc->sc_iobase + 1, EX_NOWAIT); } } /* Figure out the memory mapped I/O address range of the bridge. */ blr = pci_conf_read(pc, pa->pa_tag, PPB_REG_MEM); sc->sc_membase = (blr & 0x0000fff0) << 16; sc->sc_memlimit = (blr & 0xfff00000) | 0x000fffff; if (sc->sc_memlimit > sc->sc_membase) { name = malloc(32, M_DEVBUF, M_NOWAIT); if (name) { snprintf(name, 32, "%s pcimem", sc->sc_dev.dv_xname); sc->sc_memex = extent_create(name, 0, 0xffffffff, M_DEVBUF, NULL, 0, EX_NOWAIT | EX_FILLED); extent_free(sc->sc_memex, sc->sc_membase, sc->sc_memlimit - sc->sc_membase + 1, EX_NOWAIT); } } /* Figure out the prefetchable MMI/O address range of the bridge. */ blr = pci_conf_read(pc, pa->pa_tag, PPB_REG_PREFMEM); sc->sc_pmembase = (blr & 0x0000fff0) << 16; sc->sc_pmemlimit = (blr & 0xfff00000) | 0x000fffff; #ifdef __LP64__ /* XXX because extents use long... */ blr = pci_conf_read(pc, pa->pa_tag, PPB_REG_PREFBASE_HI32); sc->sc_pmembase |= ((uint64_t)blr) << 32; blr = pci_conf_read(pc, pa->pa_tag, PPB_REG_PREFLIM_HI32); sc->sc_pmemlimit |= ((uint64_t)blr) << 32; #endif if (sc->sc_pmemlimit > sc->sc_pmembase) { name = malloc(32, M_DEVBUF, M_NOWAIT); if (name) { snprintf(name, 32, "%s pcipmem", sc->sc_dev.dv_xname); sc->sc_pmemex = extent_create(name, 0, (u_long)-1L, M_DEVBUF, NULL, 0, EX_NOWAIT | EX_FILLED); extent_free(sc->sc_pmemex, sc->sc_pmembase, sc->sc_pmemlimit - sc->sc_pmembase + 1, EX_NOWAIT); } } /* * The Intel 82801BAM Hub-to-PCI can decode subtractively. * XXX We probably should handle subtractive decode bridges * in general. */ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL && (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82801BA_HPB || PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82801BAM_HPB)) { if (sc->sc_ioex == NULL) sc->sc_ioex = pa->pa_ioex; if (sc->sc_memex == NULL) sc->sc_memex = pa->pa_memex; } attach: /* * Attach the PCI bus that hangs off of it. * * XXX Don't pass-through Memory Read Multiple. Should we? * XXX Consult the spec... */ bzero(&pba, sizeof(pba)); pba.pba_busname = "pci"; pba.pba_iot = pa->pa_iot; pba.pba_memt = pa->pa_memt; pba.pba_dmat = pa->pa_dmat; pba.pba_pc = pc; pba.pba_flags = pa->pa_flags & ~PCI_FLAGS_MRM_OKAY; pba.pba_ioex = sc->sc_ioex; pba.pba_memex = sc->sc_memex; pba.pba_pmemex = sc->sc_pmemex; pba.pba_domain = pa->pa_domain; pba.pba_bus = PPB_BUSINFO_SECONDARY(busdata); pba.pba_bridgeih = sc->sc_ih; pba.pba_bridgetag = &sc->sc_tag; pba.pba_intrswiz = pa->pa_intrswiz; pba.pba_intrtag = pa->pa_intrtag; sc->sc_psc = config_found(self, &pba, ppbprint); }
/* * The Npwr routes #INTA of the on-board PCI devices directly * through the CPLD. There is no PCI-PCI bridge and no PCI * slots on the Npwr. * * We also expect the devices to be on the Secondary side of * the i80312. */ reg = bus_space_read_4(sc->sc_st, sc->sc_ppb_sh, PPB_REG_BUSINFO); sbus = PPB_BUSINFO_SECONDARY(reg); if (pa->pa_bus != sbus) { printf("iq80310_pci_intr_map: %d/%d/%d not on Secondary bus\n", pa->pa_bus, pa->pa_device, pa->pa_function); return (1); } switch (pa->pa_device) { case 5: /* LSI 53c1010 SCSI */ *ihp = XINT3_IRQ(2); break; case 6: /* Intel i82544GC Gig-E #1 */ *ihp = XINT3_IRQ(1); break; case 7: /* Intel i82544GC Gig-E #2 */ *ihp = XINT3_IRQ(4); break; default: printf("iq80310_pci_intr_map: no mapping for %d/%d/%d\n", pa->pa_bus, pa->pa_device, pa->pa_function); return (1); } return (0); } #else /* Default to stock IQ80310 */ int iq80310_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) { struct i80312_softc *sc = pa->pa_pc->pc_intr_v; pcitag_t tag; pcireg_t reg; int sbus, pbus; /* * Mapping of PCI interrupts on the IQ80310 is pretty easy; there * is a single interrupt line for all PCI devices on pre-F boards, * and an interrupt line for each INTx# signal on F and later boards. * * The only exception is the on-board Ethernet; this devices has * its own dedicated interrupt line. The location of this device * looks like this: * * 80312 Secondary -> PPB at dev #7 -> i82559 at dev #0 * * In order to determine if we're mapping the interrupt for the * on-board Ethernet, we must read the Secondary Bus # of the * i80312, then use that to read the Secondary Bus # of the * 21154 PPB. At that point, we know that b/d/f of the i82559, * and can determine if we're looking at that device. */ reg = bus_space_read_4(sc->sc_st, sc->sc_ppb_sh, PPB_REG_BUSINFO); pbus = PPB_BUSINFO_PRIMARY(reg); sbus = PPB_BUSINFO_SECONDARY(reg); /* * XXX We don't know how to map interrupts on the Primary * XXX PCI bus right now. */ if (pa->pa_bus == pbus) { printf("iq80310_pci_intr_map: can't map interrupts on " "Primary bus\n"); return (1); } tag = pci_make_tag(pa->pa_pc, sbus, 7, 0); /* Make sure the PPB is there. */ reg = pci_conf_read(pa->pa_pc, tag, PCI_ID_REG); if (PCI_VENDOR(reg) == PCI_VENDOR_INVALID || PCI_VENDOR(reg) == 0) { /* * That's odd... no PPB there? Oh well, issue a warning * and continue on. */ printf("iq80310_pci_intr_map: PPB not found at %d/%d/%d ??\n", sbus, 7, 0); goto pinmap; } /* Make sure the device that's there is a PPB. */ reg = pci_conf_read(pa->pa_pc, tag, PCI_CLASS_REG); if (PCI_CLASS(reg) != PCI_CLASS_BRIDGE || PCI_SUBCLASS(reg) != PCI_SUBCLASS_BRIDGE_PCI) { /* * That's odd... the device that's there isn't a PPB. * Oh well, issue a warning and continue on. */ printf("iq80310_pci_intr_map: %d/%d/%d isn't a PPB ??\n", sbus, 7, 0); goto pinmap; } /* Now read the PPB's secondary bus number. */ reg = pci_conf_read(pa->pa_pc, tag, PPB_REG_BUSINFO); sbus = PPB_BUSINFO_SECONDARY(reg); if (pa->pa_bus == sbus && pa->pa_device == 0 && pa->pa_function == 0) { /* On-board i82559 Ethernet! */ *ihp = XINT3_IRQ(XINT3_ETHERNET); return (0); } pinmap: if (pa->pa_intrpin == 0) { /* No IRQ used. */ return (1); } if (pa->pa_intrpin > 4) { printf("iq80310_pci_intr_map: bad interrupt pin %d\n", pa->pa_intrpin); return (1); } /* INTD# is always in XINT3. */ if (pa->pa_intrpin == 4) { *ihp = XINT3_IRQ(XINT3_SINTD); return (0); } /* On pre-F boards, ALL of them are on XINT3. */ if (/*pre-F*/0) *ihp = XINT3_IRQ(XINT3_SINTD); else *ihp = XINT0_IRQ(pa->pa_intrpin - 1); return (0); }