/* $OpenBSD: psycho.c,v 1.38 2003/12/20 20:08:17 miod Exp $ */ /* $NetBSD: psycho.c,v 1.39 2001/10/07 20:30:41 eeh Exp $ */ /* * Copyright (c) 1999, 2000 Matthew R. Green * Copyright (c) 2003 Henric Jungheim * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Support for `psycho' and `psycho+' UPA to PCI bridge and * UltraSPARC IIi and IIe `sabre' PCI controllers. */ #include #include #include #include #include #include #include #include #include #define _SPARC_BUS_DMA_PRIVATE #include #include #include #include #include #include #include #include #include #include #ifdef DEBUG #define PDB_PROM 0x01 #define PDB_BUSMAP 0x02 #define PDB_INTR 0x04 #define PDB_CONF 0x08 int psycho_debug = ~0; #define DPRINTF(l, s) do { if (psycho_debug & l) printf s; } while (0) #else #define DPRINTF(l, s) #endif pci_chipset_tag_t psycho_alloc_chipset(struct psycho_pbm *, int, pci_chipset_tag_t); void psycho_get_bus_range(int, int *); void psycho_get_ranges(int, struct psycho_ranges **, int *); void psycho_set_intr(struct psycho_softc *, int, void *, u_int64_t *, u_int64_t *); bus_space_tag_t _psycho_alloc_bus_tag(struct psycho_pbm *, const char *, int, int, int); /* Interrupt handlers */ int psycho_ue(void *); int psycho_ce(void *); int psycho_bus_a(void *); int psycho_bus_b(void *); int psycho_bus_error(struct psycho_softc *, int); int psycho_powerfail(void *); int psycho_wakeup(void *); /* IOMMU support */ void psycho_iommu_init(struct psycho_softc *, int); /* * bus space and bus dma support for UltraSPARC `psycho'. note that most * of the bus dma support is provided by the iommu dvma controller. */ paddr_t psycho_bus_mmap(bus_space_tag_t, bus_space_tag_t, bus_addr_t, off_t, int, int); int _psycho_bus_map(bus_space_tag_t, bus_space_tag_t, bus_addr_t, bus_size_t, int, bus_space_handle_t *); void *psycho_intr_establish(bus_space_tag_t, bus_space_tag_t, int, int, int, int (*)(void *), void *, const char *); int psycho_dmamap_create(bus_dma_tag_t, bus_dma_tag_t, bus_size_t, int, bus_size_t, bus_size_t, int, bus_dmamap_t *); void psycho_sabre_dvmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, bus_size_t, bus_size_t, int); void psycho_map_psycho(struct psycho_softc *, int, bus_addr_t, bus_size_t, bus_addr_t, bus_size_t); int psycho_intr_map(struct pci_attach_args *, pci_intr_handle_t *); void psycho_identify_pbm(struct psycho_softc *sc, struct psycho_pbm *pp, struct pcibus_attach_args *pa); /* base pci_chipset */ extern struct sparc_pci_chipset _sparc_pci_chipset; /* * autoconfiguration */ int psycho_match(struct device *, void *, void *); void psycho_attach(struct device *, struct device *, void *); int psycho_print(void *aux, const char *p); struct cfattach psycho_ca = { sizeof(struct psycho_softc), psycho_match, psycho_attach }; struct cfdriver psycho_cd = { NULL, "psycho", DV_DULL }; /* * "sabre" is the UltraSPARC IIi onboard UPA to PCI bridge. It manages a * single PCI bus and does not have a streaming buffer. It often has an APB * (advanced PCI bridge) connected to it, which was designed specifically for * the IIi. The APB let's the IIi handle two independednt PCI buses, and * appears as two "simba"'s underneath the sabre. * * "psycho" and "psycho+" is a dual UPA to PCI bridge. It sits on the UPA bus * and manages two PCI buses. "psycho" has two 64-bit 33MHz buses, while * "psycho+" controls both a 64-bit 33MHz and a 64-bit 66MHz PCI bus. You * will usually find a "psycho+" since I don't think the original "psycho" * ever shipped, and if it did it would be in the U30. * * Each "psycho" PCI bus appears as a separate OFW node, but since they are * both part of the same IC, they only have a single register space. As such, * they need to be configured together, even though the autoconfiguration will * attach them separately. * * On UltraIIi machines, "sabre" itself usually takes pci0, with "simba" often * as pci1 and pci2, although they have been implemented with other PCI bus * numbers on some machines. * * On UltraII machines, there can be any number of "psycho+" ICs, each * providing two PCI buses. * * * XXXX The psycho/sabre node has an `interrupts' attribute. They contain * the values of the following interrupts in this order: * * PCI Bus Error (30) * DMA UE (2e) * DMA CE (2f) * Power Fail (25) * * We really should attach handlers for each. * */ #define ROM_PCI_NAME "pci" struct psycho_type { char *p_name; int p_type; } psycho_types[] = { { "SUNW,psycho", PSYCHO_MODE_PSYCHO }, { "pci108e,8000", PSYCHO_MODE_PSYCHO }, { "SUNW,sabre", PSYCHO_MODE_SABRE }, { "pci108e,a000", PSYCHO_MODE_SABRE }, { "pci108e,a001", PSYCHO_MODE_SABRE }, { NULL, 0 } }; int psycho_match(struct device *parent, void *match, void *aux) { struct mainbus_attach_args *ma = aux; struct psycho_type *ptype; char *str; /* match on a name of "pci" and a sabre or a psycho */ if (strcmp(ma->ma_name, ROM_PCI_NAME) != 0) return (0); for (ptype = psycho_types; ptype->p_name != NULL; ptype++) { str = getpropstring(ma->ma_node, "model"); if (strcmp(str, ptype->p_name) == 0) return (1); str = getpropstring(ma->ma_node, "compatible"); if (strcmp(str, ptype->p_name) == 0) return (1); } return (0); } /* * SUNW,psycho initialization ... * - find the per-psycho registers * - figure out the IGN. * - find our partner psycho * - configure ourselves * - bus range, bus, * - get interrupt-map and interrupt-map-mask * - setup the chipsets. * - if we're the first of the pair, initialise the IOMMU, otherwise * just copy it's tags and addresses. */ void psycho_attach(struct device *parent, struct device *self, void *aux) { struct psycho_softc *sc = (struct psycho_softc *)self; struct psycho_softc *osc = NULL; struct psycho_pbm *pp; struct pcibus_attach_args pba; struct mainbus_attach_args *ma = aux; u_int64_t csr; int psycho_br[2], n; struct psycho_type *ptype; printf("\n"); sc->sc_node = ma->ma_node; sc->sc_bustag = ma->ma_bustag; sc->sc_dmatag = ma->ma_dmatag; /* * call the model-specific initialization routine. */ for (ptype = psycho_types; ptype->p_name != NULL; ptype++) { char *str; str = getpropstring(ma->ma_node, "model"); if (strcmp(str, ptype->p_name) == 0) break; str = getpropstring(ma->ma_node, "compatible"); if (strcmp(str, ptype->p_name) == 0) break; } if (ptype->p_name == NULL) panic("psycho_attach: unknown model?"); sc->sc_mode = ptype->p_type; /* * The psycho gets three register banks: * (0) per-PBM configuration and status registers * (1) per-PBM PCI configuration space, containing only the * PBM 256-byte PCI header * (2) the shared psycho configuration registers (struct psychoreg) * * XXX use the prom address for the psycho registers? we do so far. */ /* Register layouts are different. stuupid. */ if (sc->sc_mode == PSYCHO_MODE_PSYCHO) { sc->sc_basepaddr = (paddr_t)ma->ma_reg[2].ur_paddr; if (ma->ma_naddress > 2) { psycho_map_psycho(sc, 0, ma->ma_address[2], sizeof(struct psychoreg), ma->ma_address[0], sizeof(struct pci_ctl)); } else if (ma->ma_nreg > 2) { psycho_map_psycho(sc, 1, ma->ma_reg[2].ur_paddr, ma->ma_reg[2].ur_len, ma->ma_reg[0].ur_paddr, ma->ma_reg[0].ur_len); } else panic("psycho_attach: %d not enough registers", ma->ma_nreg); } else { sc->sc_basepaddr = (paddr_t)ma->ma_reg[0].ur_paddr; if (ma->ma_naddress) { psycho_map_psycho(sc, 0, ma->ma_address[0], sizeof(struct psychoreg), ma->ma_address[0] + offsetof(struct psychoreg, psy_pcictl[0]), sizeof(struct pci_ctl)); } else if (ma->ma_nreg) { psycho_map_psycho(sc, 1, ma->ma_reg[0].ur_paddr, ma->ma_reg[0].ur_len, ma->ma_reg[0].ur_paddr + offsetof(struct psychoreg, psy_pcictl[0]), sizeof(struct pci_ctl)); } else panic("psycho_attach: %d not enough registers", ma->ma_nreg); } csr = psycho_psychoreg_read(sc, psy_csr); sc->sc_ign = INTMAP_IGN; /* APB IGN is always 0x1f << 6 = 0x7c */ if (sc->sc_mode == PSYCHO_MODE_PSYCHO) sc->sc_ign = PSYCHO_GCSR_IGN(csr) << 6; printf("%s: impl %d, version %d: ign %x ", ptype->p_name, PSYCHO_GCSR_IMPL(csr), PSYCHO_GCSR_VERS(csr), sc->sc_ign); /* * Match other psycho's that are already configured against * the base physical address. This will be the same for a * pair of devices that share register space. */ for (n = 0; n < psycho_cd.cd_ndevs; n++) { struct psycho_softc *asc = (struct psycho_softc *)psycho_cd.cd_devs[n]; if (asc == NULL || asc == sc) /* This entry is not there or it is me */ continue; if (asc->sc_basepaddr != sc->sc_basepaddr) /* This is an unrelated psycho */ continue; /* Found partner */ osc = asc; break; } /* Oh, dear. OK, lets get started */ /* * Setup the PCI control register */ csr = psycho_pcictl_read(sc, pci_csr); csr |= PCICTL_MRLM | PCICTL_ARB_PARK | PCICTL_ERRINTEN | PCICTL_4ENABLE; csr &= ~(PCICTL_SERR | PCICTL_CPU_PRIO | PCICTL_ARB_PRIO | PCICTL_RTRYWAIT); psycho_pcictl_write(sc, pci_csr, csr); /* * Allocate our psycho_pbm */ pp = sc->sc_psycho_this = malloc(sizeof *pp, M_DEVBUF, M_NOWAIT); if (pp == NULL) panic("could not allocate psycho pbm"); memset(pp, 0, sizeof *pp); pp->pp_sc = sc; /* grab the psycho ranges */ psycho_get_ranges(sc->sc_node, &pp->pp_range, &pp->pp_nrange); /* get the bus-range for the psycho */ psycho_get_bus_range(sc->sc_node, psycho_br); pba.pba_bus = psycho_br[0]; printf("bus range %u to %u", psycho_br[0], psycho_br[1]); printf("; PCI bus %d", psycho_br[0]); pp->pp_pcictl = sc->sc_pcictl; /* allocate our tags */ pp->pp_memt = psycho_alloc_mem_tag(pp); pp->pp_iot = psycho_alloc_io_tag(pp); pp->pp_dmat = psycho_alloc_dma_tag(pp); pp->pp_flags = (pp->pp_memt ? PCI_FLAGS_MEM_ENABLED : 0) | (pp->pp_iot ? PCI_FLAGS_IO_ENABLED : 0); /* allocate a chipset for this */ pp->pp_pc = psycho_alloc_chipset(pp, sc->sc_node, &_sparc_pci_chipset); /* setup the rest of the psycho pbm */ pba.pba_pc = pp->pp_pc; printf("\n"); /* * And finally, if we're a sabre or the first of a pair of psycho's to * arrive here, start up the IOMMU and get a config space tag. */ if (osc == NULL) { uint64_t timeo; /* * Establish handlers for interesting interrupts.... * * XXX We need to remember these and remove this to support * hotplug on the UPA/FHC bus. * * XXX Not all controllers have these, but installing them * is better than trying to sort through this mess. */ psycho_set_intr(sc, 15, psycho_ue, psycho_psychoreg_vaddr(sc, ue_int_map), psycho_psychoreg_vaddr(sc, ue_clr_int)); psycho_set_intr(sc, 1, psycho_ce, psycho_psychoreg_vaddr(sc, ce_int_map), psycho_psychoreg_vaddr(sc, ce_clr_int)); psycho_set_intr(sc, 15, psycho_bus_a, psycho_psychoreg_vaddr(sc, pciaerr_int_map), psycho_psychoreg_vaddr(sc, pciaerr_clr_int)); #if 0 psycho_set_intr(sc, 15, psycho_powerfail, psycho_psychoreg_vaddr(sc, power_int_map), psycho_psychoreg_vaddr(sc, power_clr_int)); #endif if (sc->sc_mode == PSYCHO_MODE_PSYCHO) { psycho_set_intr(sc, 15, psycho_bus_b, psycho_psychoreg_vaddr(sc, pciberr_int_map), psycho_psychoreg_vaddr(sc, pciberr_clr_int)); psycho_set_intr(sc, 1, psycho_wakeup, psycho_psychoreg_vaddr(sc, pwrmgt_int_map), psycho_psychoreg_vaddr(sc, pwrmgt_clr_int)); } /* * Apparently a number of machines with psycho and psycho+ * controllers have interrupt latency issues. We'll try * setting the interrupt retry timeout to 0xff which gives us * a retry of 3-6 usec (which is what sysio is set to) for the * moment, which seems to help alleviate this problem. */ timeo = psycho_psychoreg_read(sc, intr_retry_timer); if (timeo > 0xfff) { #ifdef DEBUG printf("decreasing interrupt retry timeout " "from %lx to 0xff\n", (long)timeo); #endif psycho_psychoreg_write(sc, intr_retry_timer, 0xff); } /* * Setup IOMMU and PCI configuration if we're the first * of a pair of psycho's to arrive here. * * We should calculate a TSB size based on the amount of RAM, * number of bus controllers, and number and type of child * devices. * * For the moment, 32KB should be more than enough. */ sc->sc_is = malloc(sizeof(struct iommu_state), M_DEVBUF, M_NOWAIT); if (sc->sc_is == NULL) panic("psycho_attach: malloc iommu_state"); memset(sc->sc_is, 0, sizeof *sc->sc_is); if (getproplen(sc->sc_node, "no-streaming-cache") < 0) { struct strbuf_ctl *sb = &pp->pp_sb; vaddr_t va = (vaddr_t)&pp->pp_flush[0x40]; /* * Initialize the strbuf_ctl. * * The flush sync buffer must be 64-byte aligned. */ sb->sb_flush = (void *)(va & ~0x3f); sb->sb_bustag = sc->sc_bustag; if (bus_space_subregion(sc->sc_bustag, sc->sc_pcictl, offsetof(struct pci_ctl, pci_strbuf), sizeof(struct iommu_strbuf), &sb->sb_sb)) { printf("STC0 subregion failed\n"); sb->sb_flush = 0; } } /* Point out iommu at the strbuf_ctl. */ sc->sc_is->is_sb[0] = &pp->pp_sb; psycho_iommu_init(sc, 2); sc->sc_configtag = psycho_alloc_config_tag(sc->sc_psycho_this); if (bus_space_map(sc->sc_configtag, sc->sc_basepaddr, 0x01000000, 0, &sc->sc_configaddr)) panic("could not map psycho PCI configuration space"); } else { /* Just copy IOMMU state, config tag and address */ sc->sc_is = osc->sc_is; sc->sc_configtag = osc->sc_configtag; sc->sc_configaddr = osc->sc_configaddr; if (getproplen(sc->sc_node, "no-streaming-cache") < 0) { struct strbuf_ctl *sb = &pp->pp_sb; vaddr_t va = (vaddr_t)&pp->pp_flush[0x40]; /* * Initialize the strbuf_ctl. * * The flush sync buffer must be 64-byte aligned. */ sb->sb_flush = (void *)(va & ~0x3f); sb->sb_bustag = sc->sc_bustag; if (bus_space_subregion(sc->sc_bustag, sc->sc_pcictl, offsetof(struct pci_ctl, pci_strbuf), sizeof(struct iommu_strbuf), &sb->sb_sb)) { printf("STC1 subregion failed\n"); sb->sb_flush = 0; } /* Point out iommu at the strbuf_ctl. */ sc->sc_is->is_sb[1] = sb; } /* Point out iommu at the strbuf_ctl. */ sc->sc_is->is_sb[1] = &pp->pp_sb; iommu_reset(sc->sc_is); } /* * attach the pci.. note we pass PCI A tags, etc., for the sabre here. */ pba.pba_busname = "pci"; #if 0 pba.pba_flags = sc->sc_psycho_this->pp_flags; #endif pba.pba_dmat = sc->sc_psycho_this->pp_dmat; pba.pba_iot = sc->sc_psycho_this->pp_iot; pba.pba_memt = sc->sc_psycho_this->pp_memt; pba.pba_pc->bustag = sc->sc_configtag; pba.pba_pc->bushandle = sc->sc_configaddr; pba.pba_pc->intr_map = psycho_intr_map; if (sc->sc_mode == PSYCHO_MODE_PSYCHO) psycho_identify_pbm(sc, pp, &pba); else pp->pp_id = PSYCHO_PBM_UNKNOWN; config_found(self, &pba, psycho_print); } void psycho_identify_pbm(struct psycho_softc *sc, struct psycho_pbm *pp, struct pcibus_attach_args *pa) { vaddr_t pci_va = (vaddr_t)bus_space_vaddr(sc->sc_bustag, sc->sc_pcictl); paddr_t pci_pa; if (pmap_extract(pmap_kernel(), pci_va, &pci_pa) == 0) pp->pp_id = PSYCHO_PBM_UNKNOWN; else switch(pci_pa & 0xffff) { case 0x2000: pp->pp_id = PSYCHO_PBM_A; break; case 0x4000: pp->pp_id = PSYCHO_PBM_B; break; default: pp->pp_id = PSYCHO_PBM_UNKNOWN; break; } } void psycho_map_psycho(struct psycho_softc* sc, int do_map, bus_addr_t reg_addr, bus_size_t reg_size, bus_addr_t pci_addr, bus_size_t pci_size) { if (do_map) { if (bus_space_map(sc->sc_bustag, reg_addr, reg_size, 0, &sc->sc_regsh)) panic("psycho_attach: cannot map regs"); if (pci_addr >= reg_addr && pci_addr + pci_size <= reg_addr + reg_size) { if (bus_space_subregion(sc->sc_bustag, sc->sc_regsh, pci_addr - reg_addr, pci_size, &sc->sc_pcictl)) panic("psycho_map_psycho: map ctl"); } else if (bus_space_map(sc->sc_bustag, pci_addr, pci_size, 0, &sc->sc_pcictl)) panic("psycho_map_psycho: cannot map pci"); } else { if (bus_space_map(sc->sc_bustag, reg_addr, reg_size, BUS_SPACE_MAP_PROMADDRESS, &sc->sc_regsh)) panic("psycho_map_psycho: cannot map ctl"); if (bus_space_map(sc->sc_bustag, pci_addr, pci_size, BUS_SPACE_MAP_PROMADDRESS, &sc->sc_pcictl)) panic("psycho_map_psycho: cannot map pci"); } } int psycho_print(void *aux, const char *p) { if (p == NULL) return (UNCONF); return (QUIET); } void psycho_set_intr(struct psycho_softc *sc, int ipl, void *handler, u_int64_t *mapper, u_int64_t *clearer) { struct intrhand *ih; ih = (struct intrhand *)malloc(sizeof(struct intrhand), M_DEVBUF, M_NOWAIT); if (ih == NULL) panic("couldn't malloc intrhand"); ih->ih_arg = sc; ih->ih_map = mapper; ih->ih_clr = clearer; ih->ih_fun = handler; ih->ih_pil = (1 << ipl); ih->ih_number = INTVEC(*(ih->ih_map)); DPRINTF(PDB_INTR, ( "\ninstalling handler %p arg %p for %s with number %x pil %u", ih->ih_fun, ih->ih_arg, sc->sc_dev.dv_xname, ih->ih_number, ih->ih_pil)); intr_establish(ipl, ih); *(ih->ih_map) |= INTMAP_V; } /* * PCI bus support */ /* * allocate a PCI chipset tag and set it's cookie. */ pci_chipset_tag_t psycho_alloc_chipset(struct psycho_pbm *pp, int node, pci_chipset_tag_t pc) { pci_chipset_tag_t npc; npc = malloc(sizeof *npc, M_DEVBUF, M_NOWAIT); if (npc == NULL) panic("could not allocate pci_chipset_tag_t"); memcpy(npc, pc, sizeof *pc); npc->cookie = pp; npc->rootnode = node; npc->curnode = node; return (npc); } /* * grovel the OBP for various psycho properties */ void psycho_get_bus_range(node, brp) int node; int *brp; { int n; if (getprop(node, "bus-range", sizeof(*brp), &n, (void **)&brp)) panic("could not get psycho bus-range"); if (n != 2) panic("broken psycho bus-range"); DPRINTF(PDB_PROM, ("psycho debug: got `bus-range' for node %08x: %u - %u\n", node, brp[0], brp[1])); } void psycho_get_ranges(int node, struct psycho_ranges **rp, int *np) { if (getprop(node, "ranges", sizeof(**rp), np, (void **)rp)) panic("could not get psycho ranges"); DPRINTF(PDB_PROM, ("psycho debug: got `ranges' for node %08x: %d entries\n", node, *np)); } /* * Interrupt handlers. */ int psycho_ue(void *arg) { struct psycho_softc *sc = arg; unsigned long long afsr = psycho_psychoreg_read(sc, psy_ue_afsr); unsigned long long afar = psycho_psychoreg_read(sc, psy_ue_afar); /* * It's uncorrectable. Dump the regs and panic. */ panic("%s: uncorrectable DMA error AFAR %llx (pa=%lx tte=%llx/%llx) " "AFSR %llx", sc->sc_dev.dv_xname, afar, iommu_extract(sc->sc_is, (vaddr_t)afar), iommu_lookup_tte(sc->sc_is, (vaddr_t)afar), iommu_fetch_tte(sc->sc_is, (paddr_t)afar), afsr); return (1); } int psycho_ce(void *arg) { struct psycho_softc *sc = arg; /* * It's correctable. Dump the regs and continue. */ printf("%s: correctable DMA error AFAR %llx AFSR %llx\n", sc->sc_dev.dv_xname, (long long)psycho_psychoreg_read(sc, psy_ce_afar), (long long)psycho_psychoreg_read(sc, psy_ce_afsr)); return (1); } int psycho_bus_error(struct psycho_softc *sc, int bus) { u_int64_t afsr, afar, bits; afar = psycho_psychoreg_read(sc, psy_pcictl[bus].pci_afar); afsr = psycho_psychoreg_read(sc, psy_pcictl[bus].pci_afsr); bits = afsr & (PSY_PCIAFSR_PMA | PSY_PCIAFSR_PTA | PSY_PCIAFSR_PTRY | PSY_PCIAFSR_PPERR | PSY_PCIAFSR_SMA | PSY_PCIAFSR_STA | PSY_PCIAFSR_STRY | PSY_PCIAFSR_SPERR); if (bits == 0) return (0); /* * It's uncorrectable. Dump the regs and panic. */ printf("%s: PCI bus %c error AFAR %llx (pa=%llx) AFSR %llx\n", sc->sc_dev.dv_xname, 'A' + bus, (long long)afar, (long long)iommu_extract(sc->sc_is, (vaddr_t)afar), (long long)afsr); psycho_psychoreg_write(sc, psy_pcictl[bus].pci_afsr, bits); return (1); } int psycho_bus_a(void *arg) { struct psycho_softc *sc = arg; return (psycho_bus_error(sc, 0)); } int psycho_bus_b(void *arg) { struct psycho_softc *sc = arg; return (psycho_bus_error(sc, 1)); } int psycho_powerfail(void *arg) { /* * We lost power. Try to shut down NOW. */ printf("Power Failure Detected: Shutting down NOW.\n"); boot(RB_POWERDOWN|RB_HALT); return (1); } int psycho_wakeup(void *arg) { struct psycho_softc *sc = arg; /* * Gee, we don't really have a framework to deal with this * properly. */ printf("%s: power management wakeup\n", sc->sc_dev.dv_xname); return (1); } /* * initialise the IOMMU.. */ void psycho_iommu_init(struct psycho_softc *sc, int tsbsize) { char *name; struct iommu_state *is = sc->sc_is; u_int32_t iobase = -1; int *vdma = NULL; int nitem; /* punch in our copies */ is->is_bustag = sc->sc_bustag; bus_space_subregion(sc->sc_bustag, sc->sc_regsh, offsetof(struct psychoreg, psy_iommu), sizeof(struct iommureg), &is->is_iommu); /* * Separate the men from the boys. Get the `virtual-dma' * property for sabre and use that to make sure the damn * iommu works. * * We could query the `#virtual-dma-size-cells' and * `#virtual-dma-addr-cells' and DTRT, but I'm lazy. */ if (!getprop(sc->sc_node, "virtual-dma", sizeof(vdma), &nitem, (void **)&vdma)) { /* Damn. Gotta use these values. */ iobase = vdma[0]; #define TSBCASE(x) case 1 << ((x) + 23): tsbsize = (x); break switch (vdma[1]) { TSBCASE(1); TSBCASE(2); TSBCASE(3); TSBCASE(4); TSBCASE(5); TSBCASE(6); default: printf("bogus tsb size %x, using 7\n", vdma[1]); TSBCASE(7); } #undef TSBCASE DPRINTF(PDB_CONF, ("psycho_iommu_init: iobase=0x%x\n", iobase)); } else { DPRINTF(PDB_CONF, ("psycho_iommu_init: getprop failed, " "iobase=0x%x\n", iobase)); } /* give us a nice name.. */ name = (char *)malloc(32, M_DEVBUF, M_NOWAIT); if (name == NULL) panic("couldn't malloc iommu name"); snprintf(name, 32, "%s dvma", sc->sc_dev.dv_xname); iommu_init(name, is, tsbsize, iobase); } /* * below here is bus space and bus dma support */ bus_space_tag_t psycho_alloc_mem_tag(struct psycho_pbm *pp) { return (_psycho_alloc_bus_tag(pp, "mem", 0x02, /* 32-bit mem space (where's the #define???) */ ASI_PRIMARY, ASI_PRIMARY_LITTLE)); } bus_space_tag_t psycho_alloc_io_tag(struct psycho_pbm *pp) { return (_psycho_alloc_bus_tag(pp, "io", 0x01, /* IO space (where's the #define???) */ ASI_PHYS_NON_CACHED_LITTLE, ASI_PHYS_NON_CACHED)); } bus_space_tag_t psycho_alloc_config_tag(struct psycho_pbm *pp) { return (_psycho_alloc_bus_tag(pp, "cfg", 0x00, /* Config space (where's the #define???) */ ASI_PHYS_NON_CACHED_LITTLE, ASI_PHYS_NON_CACHED)); } bus_space_tag_t _psycho_alloc_bus_tag(struct psycho_pbm *pp, const char *name, int ss, int asi, int sasi) { struct psycho_softc *sc = pp->pp_sc; struct sparc_bus_space_tag *bt; bt = malloc(sizeof(*bt), M_DEVBUF, M_NOWAIT); if (bt == NULL) panic("could not allocate psycho bus tag"); bzero(bt, sizeof *bt); snprintf(bt->name, sizeof(bt->name), "%s-pbm_%s(%d-%2.2x)", sc->sc_dev.dv_xname, name, ss, asi); bt->cookie = pp; bt->parent = sc->sc_bustag; bt->default_type = ss; bt->asi = asi; bt->sasi = sasi; bt->sparc_bus_map = _psycho_bus_map; bt->sparc_bus_mmap = psycho_bus_mmap; bt->sparc_intr_establish = psycho_intr_establish; return (bt); } bus_dma_tag_t psycho_alloc_dma_tag(struct psycho_pbm *pp) { struct psycho_softc *sc = pp->pp_sc; bus_dma_tag_t dt, pdt = sc->sc_dmatag; dt = (bus_dma_tag_t) malloc(sizeof(struct sparc_bus_dma_tag), M_DEVBUF, M_NOWAIT); if (dt == NULL) panic("could not allocate psycho dma tag"); bzero(dt, sizeof *dt); dt->_cookie = pp; dt->_parent = pdt; dt->_dmamap_create = psycho_dmamap_create; dt->_dmamap_destroy = iommu_dvmamap_destroy; dt->_dmamap_load = iommu_dvmamap_load; dt->_dmamap_load_raw = iommu_dvmamap_load_raw; dt->_dmamap_unload = iommu_dvmamap_unload; if (sc->sc_mode == PSYCHO_MODE_PSYCHO) dt->_dmamap_sync = iommu_dvmamap_sync; else dt->_dmamap_sync = psycho_sabre_dvmamap_sync; dt->_dmamem_alloc = iommu_dvmamem_alloc; dt->_dmamem_free = iommu_dvmamem_free; dt->_dmamem_map = iommu_dvmamem_map; dt->_dmamem_unmap = iommu_dvmamem_unmap; return (dt); } /* * bus space support. has a discussion about * PCI physical addresses. */ int _psycho_bus_map(bus_space_tag_t t, bus_space_tag_t t0, bus_addr_t offset, bus_size_t size, int flags, bus_space_handle_t *hp) { struct psycho_pbm *pp = t->cookie; int i, ss; DPRINTF(PDB_BUSMAP, ("\n_psycho_bus_map: type %d off %qx sz %qx " "flags %d", t->default_type, (unsigned long long)offset, (unsigned long long)size, flags)); ss = t->default_type; DPRINTF(PDB_BUSMAP, (" cspace %d", ss)); if (t->parent == 0 || t->parent->sparc_bus_map == 0) { printf("\n_psycho_bus_map: invalid parent"); return (EINVAL); } t = t->parent; if (flags & BUS_SPACE_MAP_PROMADDRESS) { return ((*t->sparc_bus_map) (t, t0, offset, size, flags, hp)); } for (i = 0; i < pp->pp_nrange; i++) { bus_addr_t paddr; if (((pp->pp_range[i].cspace >> 24) & 0x03) != ss) continue; paddr = pp->pp_range[i].phys_lo + offset; paddr |= ((bus_addr_t)pp->pp_range[i].phys_hi << 32); DPRINTF(PDB_BUSMAP, ("\n_psycho_bus_map: mapping paddr space %lx offset %lx " "paddr %qx", (long)ss, (long)offset, (unsigned long long)paddr)); return ((*t->sparc_bus_map)(t, t0, paddr, size, flags, hp)); } DPRINTF(PDB_BUSMAP, (" FAILED\n")); return (EINVAL); } paddr_t psycho_bus_mmap(bus_space_tag_t t, bus_space_tag_t t0, bus_addr_t paddr, off_t off, int prot, int flags) { bus_addr_t offset = paddr; struct psycho_pbm *pp = t->cookie; int i, ss; ss = t->default_type; DPRINTF(PDB_BUSMAP, ("\n_psycho_bus_mmap: prot %d flags %d pa %qx", prot, flags, (unsigned long long)paddr)); if (t->parent == 0 || t->parent->sparc_bus_mmap == 0) { printf("\n_psycho_bus_mmap: invalid parent"); return (-1); } t = t->parent; for (i = 0; i < pp->pp_nrange; i++) { bus_addr_t paddr; if (((pp->pp_range[i].cspace >> 24) & 0x03) != ss) continue; paddr = pp->pp_range[i].phys_lo + offset; paddr |= ((bus_addr_t)pp->pp_range[i].phys_hi << 32); DPRINTF(PDB_BUSMAP, ("\n_psycho_bus_mmap: mapping paddr " "space %lx offset %lx paddr %qx", (long)ss, (long)offset, (unsigned long long)paddr)); return ((*t->sparc_bus_mmap)(t, t0, paddr, off, prot, flags)); } return (-1); } /* * Bus-specific interrupt mapping */ int psycho_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) { struct psycho_pbm *pp = pa->pa_pc->cookie; struct psycho_softc *sc = pp->pp_sc; u_int dev; u_int ino; ino = *ihp; if ((ino & ~INTMAP_PCIINT) == 0) { /* * This deserves some documentation. Should anyone * have anything official looking, please speak up. */ if (sc->sc_mode == PSYCHO_MODE_PSYCHO && pp->pp_id == PSYCHO_PBM_B) dev = pa->pa_device - 2; else dev = pa->pa_device - 1; if (ino == 0 || ino > 4) { u_int32_t intreg; intreg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_INTERRUPT_REG); ino = PCI_INTERRUPT_PIN(intreg) - 1; } else ino -= 1; ino &= INTMAP_PCIINT; ino |= sc->sc_ign; ino |= ((pp->pp_id == PSYCHO_PBM_B) ? INTMAP_PCIBUS : 0); ino |= (dev << 2) & INTMAP_PCISLOT; *ihp = ino; } return (0); } /* * install an interrupt handler for a PCI device */ void * psycho_intr_establish(bus_space_tag_t t, bus_space_tag_t t0, int ihandle, int level, int flags, int (*handler)(void *), void *arg, const char *what) { struct psycho_pbm *pp = t->cookie; struct psycho_softc *sc = pp->pp_sc; struct intrhand *ih; volatile u_int64_t *intrmapptr = NULL, *intrclrptr = NULL; int64_t intrmap = 0; int ino; long vec = INTVEC(ihandle); /* * Hunt through all the interrupt mapping regs to look for our * interrupt vector. * * XXX We only compare INOs rather than IGNs since the firmware may * not provide the IGN and the IGN is constant for all device on that * PCI controller. This could cause problems for the FFB/external * interrupt which has a full vector that can be set arbitrarily. */ DPRINTF(PDB_INTR, ("\npsycho_intr_establish: ihandle %x vec %lx", ihandle, vec)); ino = INTINO(vec); DPRINTF(PDB_INTR, (" ino %x", ino)); /* If the device didn't ask for an IPL, use the one encoded. */ if (level == IPL_NONE) level = INTLEV(vec); /* If it still has no level, print a warning and assign IPL 2 */ if (level == IPL_NONE) { printf("ERROR: no IPL, setting IPL 2.\n"); level = 2; } if (flags & BUS_INTR_ESTABLISH_SOFTINTR) goto found; DPRINTF(PDB_INTR, ("\npsycho: intr %lx: %p\nHunting for IRQ...\n", (long)ino, intrlev[ino])); /* Hunt thru obio first */ for (intrmapptr = psycho_psychoreg_vaddr(sc, scsi_int_map), intrclrptr = psycho_psychoreg_vaddr(sc, scsi_clr_int); intrmapptr < (volatile u_int64_t *) psycho_psychoreg_vaddr(sc, ffb0_int_map); intrmapptr++, intrclrptr++) { if (INTINO(*intrmapptr) == ino) goto found; } /* Now do PCI interrupts */ for (intrmapptr = psycho_psychoreg_vaddr(sc, pcia_slot0_int), intrclrptr = psycho_psychoreg_vaddr(sc, pcia0_clr_int[0]); intrmapptr <= (volatile u_int64_t *) psycho_psychoreg_vaddr(sc, pcib_slot3_int); intrmapptr++, intrclrptr += 4) { /* Skip PCI-A Slot 2 and PCI-A Slot 3 on psycho's */ if (sc->sc_mode == PSYCHO_MODE_PSYCHO && (intrmapptr == psycho_psychoreg_vaddr(sc, pcia_slot2_int) || intrmapptr == psycho_psychoreg_vaddr(sc, pcia_slot3_int))) continue; if (((*intrmapptr ^ vec) & 0x3c) == 0) { intrclrptr += vec & 0x3; goto found; } } printf("Cannot find interrupt vector %lx\n", vec); return (NULL); found: ih = bus_intr_allocate(t0, handler, arg, ino | sc->sc_ign, level, intrmapptr, intrclrptr, what); if (ih == NULL) { printf("Cannot allocate interrupt vector %lx\n", vec); return (NULL); } DPRINTF(PDB_INTR, ( "\ninstalling handler %p arg %p with number %x pil %u", ih->ih_fun, ih->ih_arg, ih->ih_number, ih->ih_pil)); intr_establish(ih->ih_pil, ih); /* * Enable the interrupt now we have the handler installed. * Read the current value as we can't change it besides the * valid bit so so make sure only this bit is changed. * * XXXX --- we really should use bus_space for this. */ if (intrmapptr) { intrmap = *intrmapptr; DPRINTF(PDB_INTR, ("; read intrmap = %016qx", (unsigned long long)intrmap)); /* Enable the interrupt */ intrmap |= INTMAP_V; DPRINTF(PDB_INTR, ("; addr of intrmapptr = %p", intrmapptr)); DPRINTF(PDB_INTR, ("; writing intrmap = %016qx", (unsigned long long)intrmap)); *intrmapptr = intrmap; DPRINTF(PDB_INTR, ("; reread intrmap = %016qx", (unsigned long long)(intrmap = *intrmapptr))); } return (ih); } /* * hooks into the iommu dvma calls. */ int psycho_dmamap_create(bus_dma_tag_t t, bus_dma_tag_t t0, bus_size_t size, int nsegments, bus_size_t maxsegsz, bus_size_t boundary, int flags, bus_dmamap_t *dmamp) { struct psycho_pbm *pp = t->_cookie; return (iommu_dvmamap_create(t, t0, &pp->pp_sb, size, nsegments, maxsegsz, boundary, flags, dmamp)); } void psycho_sabre_dvmamap_sync(bus_dma_tag_t t, bus_dma_tag_t t0, bus_dmamap_t map, bus_size_t offset, bus_size_t len, int ops) { struct psycho_pbm *pp = t->_cookie; struct psycho_softc *sc = pp->pp_sc; if (ops & BUS_DMASYNC_POSTREAD) psycho_psychoreg_read(sc, pci_dma_write_sync); if (ops & (BUS_DMASYNC_POSTREAD | BUS_DMASYNC_PREWRITE)) membar(MemIssue); }