Hi Nathan,
wt., 8 cze 2021 o 18:37 Nathan Whitehorn <nwhiteh...@freebsd.org> napisał(a): > > Did you look at moving sys/powerpc/ofw/ofw_pcibus.c to MI code? It does > a bit more than this (NUMA etc.) and isn't actually PowerPC-specific. > -Nathan > Thanks for the pointer - we will take a look. Best regards, Marcin > On 6/8/21 11:52 AM, Marcin Wojtas wrote: > > The branch main has been updated by mw: > > > > URL: > > https://cgit.FreeBSD.org/src/commit/?id=28c4e511c23f8b7fd131a13cc2a027aefcb520b7 > > > > commit 28c4e511c23f8b7fd131a13cc2a027aefcb520b7 > > Author: Marcin Wojtas <m...@freebsd.org> > > AuthorDate: 2021-05-27 08:09:04 +0000 > > Commit: Marcin Wojtas <m...@freebsd.org> > > CommitDate: 2021-06-08 15:52:02 +0000 > > > > Add ofw interface support to PCI > > > > Some arm64 SoCs have nodes in their fdts that describe devices > > connected to the internal PCI bus. One such SoC is Freescale LS1028A. > > In order to access information stored in them we need to add ofw bus > > support to pci. Pass devinfo request up to our parent, which > > is responsible for parsing all the information. > > It allows to use ofw interface on PCI devices that support it. > > This method is similar to sys/dev/acpica/acpi_pci.c. > > > > Submitted by: Kornel Duleba <min...@semihalf.com> > > Reviewed by: andrew > > Obtained from: Semihalf > > Sponsored by: Alstom Group > > Differential Revision: https://reviews.freebsd.org/D30181 > > --- > > sys/conf/files.arm64 | 1 + > > sys/dev/ofw/ofw_pci.c | 93 > > +++++++++++++++++++++++++++++++++++++++++++++++++++ > > 2 files changed, 94 insertions(+) > > > > diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64 > > index fed33562b834..7b9b2583aaa1 100644 > > --- a/sys/conf/files.arm64 > > +++ b/sys/conf/files.arm64 > > @@ -245,6 +245,7 @@ dev/neta/if_mvneta_fdt.c optional neta > > fdt > > dev/neta/if_mvneta.c optional neta mdio mii > > > > dev/ofw/ofw_cpu.c optional fdt > > +dev/ofw/ofw_pci.c optional fdt pci > > dev/ofw/ofw_pcib.c optional fdt pci > > > > dev/pci/controller/pci_n1sdp.c optional pci_n1sdp > > acpi > > diff --git a/sys/dev/ofw/ofw_pci.c b/sys/dev/ofw/ofw_pci.c > > new file mode 100644 > > index 000000000000..c7ed7c5c8fe9 > > --- /dev/null > > +++ b/sys/dev/ofw/ofw_pci.c > > @@ -0,0 +1,93 @@ > > +/*- > > + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD > > + * > > + * Copyright (c) 2021 Alstom Group. > > + * Copyright (c) 2021 Semihalf. > > + * > > + * 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. > > + * > > + * 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. > > + */ > > + > > +#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/pci_private.h> > > + > > +#include <dev/ofw/openfirm.h> > > +#include <dev/ofw/ofw_bus.h> > > +#include <dev/ofw/ofw_bus_subr.h> > > + > > +#include "pcib_if.h" > > +#include "pci_if.h" > > + > > +static int ofw_pci_probe(device_t); > > +static const struct ofw_bus_devinfo* pci_ofw_get_devinfo(device_t, > > device_t); > > + > > +static device_method_t ofw_pci_methods[] = { > > + DEVMETHOD(device_probe, ofw_pci_probe), > > + > > + /* ofw_bus interface */ > > + DEVMETHOD(ofw_bus_get_devinfo, pci_ofw_get_devinfo), > > + DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), > > + DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), > > + DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), > > + DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), > > + DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), > > + > > + DEVMETHOD_END > > +}; > > + > > +static devclass_t pci_devclass; > > + > > +DEFINE_CLASS_1(pci, ofw_pci_driver, ofw_pci_methods, sizeof(struct > > pci_softc), > > + pci_driver); > > +DRIVER_MODULE(ofw_pci, pcib, ofw_pci_driver, pci_devclass, 0, 0); > > +MODULE_DEPEND(ofw_pci, simplebus, 1, 1, 1); > > +MODULE_DEPEND(ofw_pci, pci, 1, 1, 1); > > +MODULE_VERSION(ofw_pci, 1); > > + > > +static int > > +ofw_pci_probe(device_t dev) > > +{ > > + device_t parent; > > + > > + parent = device_get_parent(dev); > > + if (ofw_bus_get_node(parent) <= 0) > > + return (ENXIO); > > + > > + device_set_desc(dev, "OFW PCI bus"); > > + return (BUS_PROBE_DEFAULT); > > +} > > + > > +/* Pass the request up to our parent. */ > > +static const struct ofw_bus_devinfo* > > +pci_ofw_get_devinfo(device_t bus, device_t dev) > > +{ > > + > > + return OFW_BUS_GET_DEVINFO(device_get_parent(bus), dev); > > +} > > > _______________________________________________ dev-commits-src-main@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-main To unsubscribe, send any mail to "dev-commits-src-main-unsubscr...@freebsd.org"
