2760c2cad4
this to be the case. This will mean we don't try and handle the cache in bus_dmamap_sync when it is not needed. Obtained from: ABT Systems Ltd Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D6605
161 lines
4.7 KiB
C
161 lines
4.7 KiB
C
/*
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* Copyright (C) 2016 Cavium Inc.
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* All rights reserved.
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*
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* Developed by Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "opt_platform.h"
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <sys/kernel.h>
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#include <sys/rman.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/cpuset.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pci_host_generic.h>
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#include <dev/pci/pcib_private.h>
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#include "thunder_pcie_common.h"
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#include "pcib_if.h"
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#ifdef THUNDERX_PASS_1_1_ERRATA
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static struct resource * thunder_pcie_fdt_alloc_resource(device_t, device_t,
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int, int *, rman_res_t, rman_res_t, rman_res_t, u_int);
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#endif
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static int thunder_pcie_fdt_attach(device_t);
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static int thunder_pcie_fdt_probe(device_t);
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static int thunder_pcie_fdt_get_id(device_t, device_t, enum pci_id_type,
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uintptr_t *);
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static device_method_t thunder_pcie_fdt_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, thunder_pcie_fdt_probe),
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DEVMETHOD(device_attach, thunder_pcie_fdt_attach),
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#ifdef THUNDERX_PASS_1_1_ERRATA
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DEVMETHOD(bus_alloc_resource, thunder_pcie_fdt_alloc_resource),
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#endif
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/* pcib interface */
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DEVMETHOD(pcib_get_id, thunder_pcie_fdt_get_id),
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/* End */
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DEVMETHOD_END
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};
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DEFINE_CLASS_1(pcib, thunder_pcie_fdt_driver, thunder_pcie_fdt_methods,
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sizeof(struct generic_pcie_softc), generic_pcie_driver);
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static devclass_t thunder_pcie_fdt_devclass;
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DRIVER_MODULE(thunder_pcib, simplebus, thunder_pcie_fdt_driver,
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thunder_pcie_fdt_devclass, 0, 0);
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DRIVER_MODULE(thunder_pcib, ofwbus, thunder_pcie_fdt_driver,
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thunder_pcie_fdt_devclass, 0, 0);
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static int
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thunder_pcie_fdt_probe(device_t dev)
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{
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/* Check if we're running on Cavium ThunderX */
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if (!CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK,
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CPU_IMPL_CAVIUM, CPU_PART_THUNDER, 0, 0))
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return (ENXIO);
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (ofw_bus_is_compatible(dev, "pci-host-ecam-generic") ||
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ofw_bus_is_compatible(dev, "cavium,thunder-pcie") ||
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ofw_bus_is_compatible(dev, "cavium,pci-host-thunder-ecam")) {
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device_set_desc(dev, "Cavium Integrated PCI/PCI-E Controller");
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return (BUS_PROBE_DEFAULT);
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}
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return (ENXIO);
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}
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static int
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thunder_pcie_fdt_attach(device_t dev)
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{
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struct generic_pcie_softc *sc;
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sc = device_get_softc(dev);
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thunder_pcie_identify_ecam(dev, &sc->ecam);
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sc->coherent = 1;
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return (pci_host_generic_attach(dev));
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}
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static int
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thunder_pcie_fdt_get_id(device_t pci, device_t child, enum pci_id_type type,
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uintptr_t *id)
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{
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phandle_t node;
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int bsf;
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if (type != PCI_ID_MSI)
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return (pcib_get_id(pci, child, type, id));
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node = ofw_bus_get_node(pci);
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if (OF_hasprop(node, "msi-map"))
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return (generic_pcie_get_id(pci, child, type, id));
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bsf = pci_get_rid(child);
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*id = (pci_get_domain(child) << PCI_RID_DOMAIN_SHIFT) | bsf;
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return (0);
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}
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#ifdef THUNDERX_PASS_1_1_ERRATA
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static struct resource *
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thunder_pcie_fdt_alloc_resource(device_t dev, device_t child, int type, int *rid,
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rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
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{
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if ((int)ofw_bus_get_node(child) > 0)
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return (pci_host_generic_alloc_resource(dev, child,
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type, rid, start, end, count, flags));
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return (thunder_pcie_alloc_resource(dev, child,
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type, rid, start, end, count, flags));
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}
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#endif
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