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author | Attilio Rao <attilio@FreeBSD.org> | 2010-10-28 07:58:06 +0000 |
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committer | Attilio Rao <attilio@FreeBSD.org> | 2010-10-28 07:58:06 +0000 |
commit | a3da97926d3a23bc888834fa165ce2142c2ab69f (patch) | |
tree | cd6ad80e4e7d33c9415f4b1cb3b332868e2438b7 /sys/x86/x86/mptable_pci.c | |
parent | 1adaedf5cda53623d754b370d44af50059e9723e (diff) | |
download | src-a3da97926d3a23bc888834fa165ce2142c2ab69f.tar.gz src-a3da97926d3a23bc888834fa165ce2142c2ab69f.zip |
Merge the mptable support from MD bits to x86 subtree.
Sponsored by: Sandvine Incorporated
Discussed with: jhb
Notes
Notes:
svn path=/head/; revision=214446
Diffstat (limited to 'sys/x86/x86/mptable_pci.c')
-rw-r--r-- | sys/x86/x86/mptable_pci.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/sys/x86/x86/mptable_pci.c b/sys/x86/x86/mptable_pci.c new file mode 100644 index 000000000000..47a666d9781a --- /dev/null +++ b/sys/x86/x86/mptable_pci.c @@ -0,0 +1,177 @@ +/*- + * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org> + * 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. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. + */ + +/* + * Host to PCI and PCI to PCI bridge drivers that use the MP Table to route + * interrupts from PCI devices to I/O APICs. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/module.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcib_private.h> +#include <machine/legacyvar.h> +#include <machine/mptable.h> +#include <machine/pci_cfgreg.h> + +#include "pcib_if.h" + +/* Host to PCI bridge driver. */ + +static int +mptable_hostb_probe(device_t dev) +{ + + if (pci_cfgregopen() == 0) + return (ENXIO); + if (mptable_pci_probe_table(pcib_get_bus(dev)) != 0) + return (ENXIO); + device_set_desc(dev, "MPTable Host-PCI bridge"); + return (0); +} + +static int +mptable_hostb_attach(device_t dev) +{ + + device_add_child(dev, "pci", pcib_get_bus(dev)); + return (bus_generic_attach(dev)); +} + +/* Pass MSI requests up to the nexus. */ +static int +mptable_hostb_alloc_msi(device_t pcib, device_t dev, int count, int maxcount, + int *irqs) +{ + device_t bus; + + bus = device_get_parent(pcib); + return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount, + irqs)); +} + +static int +mptable_hostb_alloc_msix(device_t pcib, device_t dev, int *irq) +{ + device_t bus; + + bus = device_get_parent(pcib); + return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq)); +} + +static int +mptable_hostb_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr, + uint32_t *data) +{ + device_t bus; + + bus = device_get_parent(pcib); + return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data)); +} + +static device_method_t mptable_hostb_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, mptable_hostb_probe), + DEVMETHOD(device_attach, mptable_hostb_attach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + + /* Bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_read_ivar, legacy_pcib_read_ivar), + DEVMETHOD(bus_write_ivar, legacy_pcib_write_ivar), + DEVMETHOD(bus_alloc_resource, legacy_pcib_alloc_resource), + DEVMETHOD(bus_release_resource, bus_generic_release_resource), + DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), + DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), + DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), + DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), + + /* pcib interface */ + DEVMETHOD(pcib_maxslots, legacy_pcib_maxslots), + DEVMETHOD(pcib_read_config, legacy_pcib_read_config), + DEVMETHOD(pcib_write_config, legacy_pcib_write_config), + DEVMETHOD(pcib_route_interrupt, mptable_pci_route_interrupt), + DEVMETHOD(pcib_alloc_msi, mptable_hostb_alloc_msi), + DEVMETHOD(pcib_release_msi, pcib_release_msi), + DEVMETHOD(pcib_alloc_msix, mptable_hostb_alloc_msix), + DEVMETHOD(pcib_release_msix, pcib_release_msix), + DEVMETHOD(pcib_map_msi, mptable_hostb_map_msi), + + { 0, 0 } +}; + +static devclass_t hostb_devclass; + +DEFINE_CLASS_0(pcib, mptable_hostb_driver, mptable_hostb_methods, 1); +DRIVER_MODULE(mptable_pcib, legacy, mptable_hostb_driver, hostb_devclass, 0, 0); + +/* PCI to PCI bridge driver. */ + +static int +mptable_pcib_probe(device_t dev) +{ + int bus; + + if ((pci_get_class(dev) != PCIC_BRIDGE) || + (pci_get_subclass(dev) != PCIS_BRIDGE_PCI)) + return (ENXIO); + bus = pci_read_config(dev, PCIR_SECBUS_1, 1); + if (bus == 0) + return (ENXIO); + if (mptable_pci_probe_table(bus) != 0) + return (ENXIO); + device_set_desc(dev, "MPTable PCI-PCI bridge"); + return (-1000); +} + +static device_method_t mptable_pcib_pci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, mptable_pcib_probe), + + /* pcib interface */ + DEVMETHOD(pcib_route_interrupt, mptable_pci_route_interrupt), + + {0, 0} +}; + +static devclass_t pcib_devclass; + +DEFINE_CLASS_1(pcib, mptable_pcib_driver, mptable_pcib_pci_methods, + sizeof(struct pcib_softc), pcib_driver); +DRIVER_MODULE(mptable_pcib, pci, mptable_pcib_driver, pcib_devclass, 0, 0); |