diff options
Diffstat (limited to 'sys/dev/acpica/acpi_pcib_acpi.c')
| -rw-r--r-- | sys/dev/acpica/acpi_pcib_acpi.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/sys/dev/acpica/acpi_pcib_acpi.c b/sys/dev/acpica/acpi_pcib_acpi.c index 882834d..545f641 100644 --- a/sys/dev/acpica/acpi_pcib_acpi.c +++ b/sys/dev/acpica/acpi_pcib_acpi.c @@ -44,6 +44,7 @@ __FBSDID("$FreeBSD$"); #include <dev/acpica/acpivar.h> #include <machine/pci_cfgreg.h> +#include <dev/pci/pcireg.h> #include <dev/pci/pcivar.h> #include <dev/pci/pcib_private.h> #include "pcib_if.h" @@ -96,6 +97,11 @@ static struct resource *acpi_pcib_acpi_alloc_resource(device_t dev, static int acpi_pcib_acpi_adjust_resource(device_t dev, device_t child, int type, struct resource *r, u_long start, u_long end); +#ifdef PCI_RES_BUS +static int acpi_pcib_acpi_release_resource(device_t dev, + device_t child, int type, int rid, + struct resource *r); +#endif #endif static device_method_t acpi_pcib_acpi_methods[] = { @@ -115,7 +121,11 @@ static device_method_t acpi_pcib_acpi_methods[] = { #else DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource), #endif +#if defined(NEW_PCIB) && defined(PCI_RES_BUS) + DEVMETHOD(bus_release_resource, acpi_pcib_acpi_release_resource), +#else DEVMETHOD(bus_release_resource, bus_generic_release_resource), +#endif DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), @@ -271,6 +281,20 @@ acpi_pcib_producer_handler(ACPI_RESOURCE *res, void *context) } #endif +#if defined(NEW_PCIB) && defined(PCI_RES_BUS) +static int +first_decoded_bus(struct acpi_hpcib_softc *sc, u_long *startp) +{ + struct resource_list_entry *rle; + + rle = resource_list_find(&sc->ap_host_res.hr_rl, PCI_RES_BUS, 0); + if (rle == NULL) + return (ENXIO); + *startp = rle->start; + return (0); +} +#endif + static int acpi_pcib_acpi_attach(device_t dev) { @@ -278,6 +302,11 @@ acpi_pcib_acpi_attach(device_t dev) ACPI_STATUS status; static int bus0_seen = 0; u_int slot, func, busok; +#if defined(NEW_PCIB) && defined(PCI_RES_BUS) + struct resource *bus_res; + u_long start; + int rid; +#endif uint8_t busno; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); @@ -389,6 +418,39 @@ acpi_pcib_acpi_attach(device_t dev) } } +#if defined(NEW_PCIB) && defined(PCI_RES_BUS) + /* + * If nothing else worked, hope that ACPI at least lays out the + * Host-PCI bridges in order and that as a result the next free + * bus number is our bus number. + */ + if (busok == 0) { + /* + * If we have a region of bus numbers, use the first + * number for our bus. + */ + if (first_decoded_bus(sc, &start) == 0) + sc->ap_bus = start; + else { + rid = 0; + bus_res = pci_domain_alloc_bus(sc->ap_segment, dev, &rid, 0, + PCI_BUSMAX, 1, 0); + if (bus_res == NULL) { + device_printf(dev, + "could not allocate bus number\n"); + pcib_host_res_free(dev, &sc->ap_host_res); + return (ENXIO); + } + sc->ap_bus = rman_get_start(bus_res); + pci_domain_release_bus(sc->ap_segment, dev, rid, bus_res); + } + } else { +#ifdef INVARIANTS + if (first_decoded_bus(sc, &start) == 0) + KASSERT(start == sc->ap_bus, ("bus number mismatch")); +#endif + } +#else /* * If nothing else worked, hope that ACPI at least lays out the * host-PCI bridges in order and that as a result our unit number @@ -399,6 +461,7 @@ acpi_pcib_acpi_attach(device_t dev) sc->ap_bus = device_get_unit(dev); device_printf(dev, "trying bus number %d\n", sc->ap_bus); } +#endif /* If this is bus 0 on segment 0, note that it has been seen already. */ if (sc->ap_segment == 0 && sc->ap_bus == 0) @@ -534,6 +597,11 @@ acpi_pcib_acpi_alloc_resource(device_t dev, device_t child, int type, int *rid, #ifdef NEW_PCIB sc = device_get_softc(dev); +#ifdef PCI_RES_BUS + if (type == PCI_RES_BUS) + return (pci_domain_alloc_bus(sc->ap_segment, child, rid, start, end, + count, flags)); +#endif res = pcib_host_res_alloc(&sc->ap_host_res, child, type, rid, start, end, count, flags); @@ -562,7 +630,26 @@ acpi_pcib_acpi_adjust_resource(device_t dev, device_t child, int type, struct acpi_hpcib_softc *sc; sc = device_get_softc(dev); +#ifdef PCI_RES_BUS + if (type == PCI_RES_BUS) + return (pci_domain_adjust_bus(sc->ap_segment, child, r, start, + end)); +#endif return (pcib_host_res_adjust(&sc->ap_host_res, child, type, r, start, end)); } + +#ifdef PCI_RES_BUS +int +acpi_pcib_acpi_release_resource(device_t dev, device_t child, int type, int rid, + struct resource *r) +{ + struct acpi_hpcib_softc *sc; + + sc = device_get_softc(dev); + if (type == PCI_RES_BUS) + return (pci_domain_release_bus(sc->ap_segment, child, rid, r)); + return (bus_generic_release_resource(dev, child, type, rid, r)); +} +#endif #endif |
