1294991Szbb/* 2294991Szbb * Copyright (C) 2016 Cavium Inc. 3294991Szbb * All rights reserved. 4294991Szbb * 5294991Szbb * Developed by Semihalf. 6294991Szbb * 7294991Szbb * Redistribution and use in source and binary forms, with or without 8294991Szbb * modification, are permitted provided that the following conditions 9294991Szbb * are met: 10294991Szbb * 1. Redistributions of source code must retain the above copyright 11294991Szbb * notice, this list of conditions and the following disclaimer. 12294991Szbb * 2. Redistributions in binary form must reproduce the above copyright 13294991Szbb * notice, this list of conditions and the following disclaimer in the 14294991Szbb * documentation and/or other materials provided with the distribution. 15294991Szbb * 16294991Szbb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17294991Szbb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18294991Szbb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19294991Szbb * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20294991Szbb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21294991Szbb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22294991Szbb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23294991Szbb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24294991Szbb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25294991Szbb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26294991Szbb * SUCH DAMAGE. 27294991Szbb */ 28294991Szbb#include "opt_platform.h" 29294991Szbb 30294991Szbb#include <sys/cdefs.h> 31294991Szbb__FBSDID("$FreeBSD$"); 32294991Szbb 33294991Szbb#include <sys/param.h> 34294991Szbb#include <sys/systm.h> 35294991Szbb#include <sys/malloc.h> 36294991Szbb#include <sys/types.h> 37294991Szbb#include <sys/sysctl.h> 38294991Szbb#include <sys/kernel.h> 39294991Szbb#include <sys/rman.h> 40294991Szbb#include <sys/module.h> 41294991Szbb#include <sys/bus.h> 42294991Szbb#include <sys/endian.h> 43294991Szbb#include <sys/cpuset.h> 44294991Szbb 45294991Szbb#include <dev/ofw/openfirm.h> 46294991Szbb#include <dev/ofw/ofw_bus.h> 47294991Szbb#include <dev/ofw/ofw_bus_subr.h> 48299932Sandrew 49299932Sandrew#include <dev/pci/pcireg.h> 50299932Sandrew#include <dev/pci/pcivar.h> 51295962Swma#include <dev/pci/pci_host_generic.h> 52299932Sandrew#include <dev/pci/pcib_private.h> 53294991Szbb 54294991Szbb#include "thunder_pcie_common.h" 55294991Szbb 56299932Sandrew#include "pcib_if.h" 57299932Sandrew 58296091Swma#ifdef THUNDERX_PASS_1_1_ERRATA 59296091Swmastatic struct resource * thunder_pcie_fdt_alloc_resource(device_t, device_t, 60296091Swma int, int *, rman_res_t, rman_res_t, rman_res_t, u_int); 61296091Swma#endif 62295962Swmastatic int thunder_pcie_fdt_attach(device_t); 63294991Szbbstatic int thunder_pcie_fdt_probe(device_t); 64299932Sandrewstatic int thunder_pcie_fdt_get_id(device_t, device_t, enum pci_id_type, 65299932Sandrew uintptr_t *); 66294991Szbb 67294991Szbbstatic device_method_t thunder_pcie_fdt_methods[] = { 68294991Szbb /* Device interface */ 69294991Szbb DEVMETHOD(device_probe, thunder_pcie_fdt_probe), 70294991Szbb DEVMETHOD(device_attach, thunder_pcie_fdt_attach), 71296091Swma#ifdef THUNDERX_PASS_1_1_ERRATA 72296091Swma DEVMETHOD(bus_alloc_resource, thunder_pcie_fdt_alloc_resource), 73296091Swma#endif 74294993Szbb 75299932Sandrew /* pcib interface */ 76299932Sandrew DEVMETHOD(pcib_get_id, thunder_pcie_fdt_get_id), 77299932Sandrew 78294991Szbb /* End */ 79294991Szbb DEVMETHOD_END 80294991Szbb}; 81294991Szbb 82294991SzbbDEFINE_CLASS_1(pcib, thunder_pcie_fdt_driver, thunder_pcie_fdt_methods, 83295962Swma sizeof(struct generic_pcie_softc), generic_pcie_driver); 84294991Szbb 85294991Szbbstatic devclass_t thunder_pcie_fdt_devclass; 86294991Szbb 87294991SzbbDRIVER_MODULE(thunder_pcib, simplebus, thunder_pcie_fdt_driver, 88294991Szbb thunder_pcie_fdt_devclass, 0, 0); 89294991SzbbDRIVER_MODULE(thunder_pcib, ofwbus, thunder_pcie_fdt_driver, 90294991Szbb thunder_pcie_fdt_devclass, 0, 0); 91294991Szbb 92294991Szbb 93294991Szbbstatic int 94294991Szbbthunder_pcie_fdt_probe(device_t dev) 95294991Szbb{ 96294991Szbb 97295962Swma /* Check if we're running on Cavium ThunderX */ 98295962Swma if (!CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK, 99295962Swma CPU_IMPL_CAVIUM, CPU_PART_THUNDER, 0, 0)) 100295962Swma return (ENXIO); 101295962Swma 102294991Szbb if (!ofw_bus_status_okay(dev)) 103294991Szbb return (ENXIO); 104294991Szbb 105295962Swma if (ofw_bus_is_compatible(dev, "pci-host-ecam-generic") || 106295962Swma ofw_bus_is_compatible(dev, "cavium,thunder-pcie") || 107294991Szbb ofw_bus_is_compatible(dev, "cavium,pci-host-thunder-ecam")) { 108294991Szbb device_set_desc(dev, "Cavium Integrated PCI/PCI-E Controller"); 109294991Szbb return (BUS_PROBE_DEFAULT); 110294991Szbb } 111294991Szbb 112294991Szbb return (ENXIO); 113294991Szbb} 114294991Szbb 115294991Szbbstatic int 116294991Szbbthunder_pcie_fdt_attach(device_t dev) 117294991Szbb{ 118295962Swma struct generic_pcie_softc *sc; 119294991Szbb 120294991Szbb sc = device_get_softc(dev); 121295962Swma thunder_pcie_identify_ecam(dev, &sc->ecam); 122301031Sandrew sc->coherent = 1; 123294991Szbb 124295962Swma return (pci_host_generic_attach(dev)); 125294991Szbb} 126294993Szbb 127299932Sandrewstatic int 128299932Sandrewthunder_pcie_fdt_get_id(device_t pci, device_t child, enum pci_id_type type, 129299932Sandrew uintptr_t *id) 130299932Sandrew{ 131299932Sandrew phandle_t node; 132299932Sandrew int bsf; 133299932Sandrew 134299932Sandrew if (type != PCI_ID_MSI) 135299932Sandrew return (pcib_get_id(pci, child, type, id)); 136299932Sandrew 137299932Sandrew node = ofw_bus_get_node(pci); 138299932Sandrew if (OF_hasprop(node, "msi-map")) 139299932Sandrew return (generic_pcie_get_id(pci, child, type, id)); 140299932Sandrew 141299932Sandrew bsf = pci_get_rid(child); 142299932Sandrew *id = (pci_get_domain(child) << PCI_RID_DOMAIN_SHIFT) | bsf; 143299932Sandrew 144299932Sandrew return (0); 145299932Sandrew} 146299932Sandrew 147296091Swma#ifdef THUNDERX_PASS_1_1_ERRATA 148296091Swmastatic struct resource * 149296091Swmathunder_pcie_fdt_alloc_resource(device_t dev, device_t child, int type, int *rid, 150296091Swma rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 151296091Swma{ 152296091Swma 153296091Swma if ((int)ofw_bus_get_node(child) > 0) 154296091Swma return (pci_host_generic_alloc_resource(dev, child, 155296091Swma type, rid, start, end, count, flags)); 156296091Swma 157296091Swma return (thunder_pcie_alloc_resource(dev, child, 158296091Swma type, rid, start, end, count, flags)); 159296091Swma} 160296091Swma#endif 161