1139825Simp/*- 286231Stmm * Copyright (c) 1999, 2000 Matthew R. Green 3117119Stmm * Copyright (c) 2001 - 2003 by Thomas Moestl <tmm@FreeBSD.org> 4287726Smarius * Copyright (c) 2005 - 2015 by Marius Strobl <marius@FreeBSD.org> 586231Stmm * All rights reserved. 686231Stmm * 786231Stmm * Redistribution and use in source and binary forms, with or without 886231Stmm * modification, are permitted provided that the following conditions 986231Stmm * are met: 1086231Stmm * 1. Redistributions of source code must retain the above copyright 1186231Stmm * notice, this list of conditions and the following disclaimer. 1286231Stmm * 2. Redistributions in binary form must reproduce the above copyright 1386231Stmm * notice, this list of conditions and the following disclaimer in the 1486231Stmm * documentation and/or other materials provided with the distribution. 1586231Stmm * 3. The name of the author may not be used to endorse or promote products 1686231Stmm * derived from this software without specific prior written permission. 1786231Stmm * 1886231Stmm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1986231Stmm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2086231Stmm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2186231Stmm * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2286231Stmm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 2386231Stmm * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 2486231Stmm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 2586231Stmm * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2686231Stmm * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2786231Stmm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2886231Stmm * SUCH DAMAGE. 2986231Stmm * 3086231Stmm * from: NetBSD: psycho.c,v 1.35 2001/09/10 16:17:06 eeh Exp 3186231Stmm */ 3286231Stmm 33153057Smarius#include <sys/cdefs.h> 34153057Smarius__FBSDID("$FreeBSD$"); 35153057Smarius 3686231Stmm#include "opt_ofw_pci.h" 3786231Stmm 3886231Stmm#include <sys/param.h> 3986231Stmm#include <sys/systm.h> 4086231Stmm#include <sys/bus.h> 41287726Smarius#include <sys/kernel.h> 42287726Smarius#include <sys/rman.h> 4386231Stmm 44287726Smarius#include <dev/ofw/ofw_bus.h> 45287726Smarius#include <dev/ofw/ofw_pci.h> 4686231Stmm#include <dev/ofw/openfirm.h> 4786231Stmm 48287726Smarius#include <dev/pci/pcireg.h> 49287726Smarius#include <dev/pci/pcivar.h> 50287726Smarius 51287726Smarius#include <machine/asi.h> 52115417Stmm#include <machine/bus.h> 53287726Smarius#include <machine/bus_private.h> 54287726Smarius#include <machine/cpufunc.h> 55287726Smarius#include <machine/fsr.h> 56287726Smarius#include <machine/resource.h> 5786231Stmm 58117119Stmm#include <sparc64/pci/ofw_pci.h> 59117119Stmm 60287726Smariusint 61287726Smariusofw_pci_attach_common(device_t dev, bus_dma_tag_t dmat, u_long iosize, 62287726Smarius u_long memsize) 63287726Smarius{ 64287726Smarius struct ofw_pci_softc *sc; 65287726Smarius struct ofw_pci_ranges *range; 66287726Smarius phandle_t node; 67287726Smarius uint32_t prop_array[2]; 68287726Smarius u_int i, j, nrange; 6986231Stmm 70287726Smarius sc = device_get_softc(dev); 71287726Smarius node = ofw_bus_get_node(dev); 72287726Smarius sc->sc_node = node; 73287726Smarius sc->sc_pci_dmat = dmat; 74117119Stmm 75287726Smarius /* Initialize memory and I/O rmans. */ 76287726Smarius sc->sc_pci_io_rman.rm_type = RMAN_ARRAY; 77287726Smarius sc->sc_pci_io_rman.rm_descr = "PCI I/O Ports"; 78287726Smarius if (rman_init(&sc->sc_pci_io_rman) != 0 || 79287726Smarius rman_manage_region(&sc->sc_pci_io_rman, 0, iosize) != 0) { 80287726Smarius device_printf(dev, "failed to set up I/O rman\n"); 81287726Smarius return (ENXIO); 82287726Smarius } 83287726Smarius sc->sc_pci_mem_rman.rm_type = RMAN_ARRAY; 84287726Smarius sc->sc_pci_mem_rman.rm_descr = "PCI Memory"; 85287726Smarius if (rman_init(&sc->sc_pci_mem_rman) != 0 || 86287726Smarius rman_manage_region(&sc->sc_pci_mem_rman, 0, memsize) != 0) { 87287726Smarius device_printf(dev, "failed to set up memory rman\n"); 88287726Smarius return (ENXIO); 89287726Smarius } 9098148Stmm 91287726Smarius /* 92287726Smarius * Find the addresses of the various bus spaces. The physical 93287726Smarius * start addresses of the ranges are the configuration, I/O and 94287726Smarius * memory handles. There should not be multiple ones of one kind. 95287726Smarius */ 96287726Smarius nrange = OF_getprop_alloc(node, "ranges", sizeof(*range), 97287726Smarius (void **)&range); 98287726Smarius for (i = 0; i < nrange; i++) { 99287726Smarius j = OFW_PCI_RANGE_CS(&range[i]); 100287726Smarius if (sc->sc_pci_bh[j] != 0) { 101287726Smarius device_printf(dev, "duplicate range for space %d\n", 102287726Smarius j); 103300173Sgonzo OF_prop_free(range); 104287726Smarius return (EINVAL); 10598148Stmm } 106287726Smarius sc->sc_pci_bh[j] = OFW_PCI_RANGE_PHYS(&range[i]); 10798148Stmm } 108300173Sgonzo OF_prop_free(range); 109287726Smarius 110287726Smarius /* 111287726Smarius * Make sure that the expected ranges are actually present. 112287726Smarius * The OFW_PCI_CS_MEM64 one is not currently used. 113287726Smarius */ 114287726Smarius if (sc->sc_pci_bh[OFW_PCI_CS_CONFIG] == 0) { 115287726Smarius device_printf(dev, "missing CONFIG range\n"); 116287726Smarius return (ENXIO); 117287726Smarius } 118287726Smarius if (sc->sc_pci_bh[OFW_PCI_CS_IO] == 0) { 119287726Smarius device_printf(dev, "missing IO range\n"); 120287726Smarius return (ENXIO); 121287726Smarius } 122287726Smarius if (sc->sc_pci_bh[OFW_PCI_CS_MEM32] == 0) { 123287726Smarius device_printf(dev, "missing MEM32 range\n"); 124287726Smarius return (ENXIO); 125287726Smarius } 126287726Smarius 127287726Smarius /* Allocate our tags. */ 128287726Smarius sc->sc_pci_iot = sparc64_alloc_bus_tag(NULL, PCI_IO_BUS_SPACE); 129287726Smarius if (sc->sc_pci_iot == NULL) { 130287726Smarius device_printf(dev, "could not allocate PCI I/O tag\n"); 131287726Smarius return (ENXIO); 132287726Smarius } 133287726Smarius sc->sc_pci_cfgt = sparc64_alloc_bus_tag(NULL, PCI_CONFIG_BUS_SPACE); 134287726Smarius if (sc->sc_pci_cfgt == NULL) { 135287726Smarius device_printf(dev, 136287726Smarius "could not allocate PCI configuration space tag\n"); 137287726Smarius return (ENXIO); 138287726Smarius } 139287726Smarius 140287726Smarius /* 141287726Smarius * Get the bus range from the firmware. 142287726Smarius */ 143287726Smarius i = OF_getprop(node, "bus-range", (void *)prop_array, 144287726Smarius sizeof(prop_array)); 145287726Smarius if (i == -1) { 146287726Smarius device_printf(dev, "could not get bus-range\n"); 147287726Smarius return (ENXIO); 148287726Smarius } 149287726Smarius if (i != sizeof(prop_array)) { 150287726Smarius device_printf(dev, "broken bus-range (%d)", i); 151287726Smarius return (EINVAL); 152287726Smarius } 153287726Smarius sc->sc_pci_secbus = prop_array[0]; 154287726Smarius sc->sc_pci_subbus = prop_array[1]; 155287726Smarius if (bootverbose != 0) 156287726Smarius device_printf(dev, "bus range %u to %u; PCI bus %d\n", 157287726Smarius sc->sc_pci_secbus, sc->sc_pci_subbus, sc->sc_pci_secbus); 158287726Smarius 159287726Smarius ofw_bus_setup_iinfo(node, &sc->sc_pci_iinfo, sizeof(ofw_pci_intr_t)); 160287726Smarius 161287726Smarius return (0); 16298148Stmm} 163287726Smarius 164287726Smariusuint32_t 165287726Smariusofw_pci_read_config_common(device_t dev, u_int regmax, u_long offset, 166287726Smarius u_int bus, u_int slot, u_int func, u_int reg, int width) 167287726Smarius{ 168287726Smarius struct ofw_pci_softc *sc; 169287726Smarius bus_space_handle_t bh; 170287726Smarius uint32_t r, wrd; 171287726Smarius int i; 172287726Smarius uint16_t shrt; 173287726Smarius uint8_t byte; 174287726Smarius 175287726Smarius sc = device_get_softc(dev); 176287726Smarius if (bus < sc->sc_pci_secbus || bus > sc->sc_pci_subbus || 177287726Smarius slot > PCI_SLOTMAX || func > PCI_FUNCMAX || reg > regmax) 178287726Smarius return (-1); 179287726Smarius 180287726Smarius bh = sc->sc_pci_bh[OFW_PCI_CS_CONFIG]; 181287726Smarius switch (width) { 182287726Smarius case 1: 183287726Smarius i = bus_space_peek_1(sc->sc_pci_cfgt, bh, offset, &byte); 184287726Smarius r = byte; 185287726Smarius break; 186287726Smarius case 2: 187287726Smarius i = bus_space_peek_2(sc->sc_pci_cfgt, bh, offset, &shrt); 188287726Smarius r = shrt; 189287726Smarius break; 190287726Smarius case 4: 191287726Smarius i = bus_space_peek_4(sc->sc_pci_cfgt, bh, offset, &wrd); 192287726Smarius r = wrd; 193287726Smarius break; 194287726Smarius default: 195287726Smarius panic("%s: bad width %d", __func__, width); 196287726Smarius /* NOTREACHED */ 197287726Smarius } 198287726Smarius 199287726Smarius if (i) { 200287726Smarius#ifdef OFW_PCI_DEBUG 201287726Smarius printf("%s: read data error reading: %d.%d.%d: 0x%x\n", 202287726Smarius __func__, bus, slot, func, reg); 203287726Smarius#endif 204287726Smarius r = -1; 205287726Smarius } 206287726Smarius return (r); 207287726Smarius} 208287726Smarius 209287726Smariusvoid 210287726Smariusofw_pci_write_config_common(device_t dev, u_int regmax, u_long offset, 211287726Smarius u_int bus, u_int slot, u_int func, u_int reg, uint32_t val, int width) 212287726Smarius{ 213287726Smarius struct ofw_pci_softc *sc; 214287726Smarius bus_space_handle_t bh; 215287726Smarius 216287726Smarius sc = device_get_softc(dev); 217287726Smarius if (bus < sc->sc_pci_secbus || bus > sc->sc_pci_subbus || 218287726Smarius slot > PCI_SLOTMAX || func > PCI_FUNCMAX || reg > regmax) 219287726Smarius return; 220287726Smarius 221287726Smarius bh = sc->sc_pci_bh[OFW_PCI_CS_CONFIG]; 222287726Smarius switch (width) { 223287726Smarius case 1: 224287726Smarius bus_space_write_1(sc->sc_pci_cfgt, bh, offset, val); 225287726Smarius break; 226287726Smarius case 2: 227287726Smarius bus_space_write_2(sc->sc_pci_cfgt, bh, offset, val); 228287726Smarius break; 229287726Smarius case 4: 230287726Smarius bus_space_write_4(sc->sc_pci_cfgt, bh, offset, val); 231287726Smarius break; 232287726Smarius default: 233287726Smarius panic("%s: bad width %d", __func__, width); 234287726Smarius /* NOTREACHED */ 235287726Smarius } 236287726Smarius} 237287726Smarius 238287726Smariusofw_pci_intr_t 239287726Smariusofw_pci_route_interrupt_common(device_t bridge, device_t dev, int pin) 240287726Smarius{ 241287726Smarius struct ofw_pci_softc *sc; 242287726Smarius struct ofw_pci_register reg; 243287726Smarius ofw_pci_intr_t pintr, mintr; 244287726Smarius 245287726Smarius sc = device_get_softc(bridge); 246287726Smarius pintr = pin; 247287726Smarius if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), &sc->sc_pci_iinfo, 248287726Smarius ®, sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr), 249287726Smarius NULL) != 0) 250287726Smarius return (mintr); 251287726Smarius return (PCI_INVALID_IRQ); 252287726Smarius} 253287726Smarius 254287726Smariusvoid 255287726Smariusofw_pci_dmamap_sync_stst_order_common(void) 256287726Smarius{ 257287726Smarius static u_char buf[VIS_BLOCKSIZE] __aligned(VIS_BLOCKSIZE); 258287726Smarius register_t reg, s; 259287726Smarius 260287726Smarius s = intr_disable(); 261287726Smarius reg = rd(fprs); 262287726Smarius wr(fprs, reg | FPRS_FEF, 0); 263287726Smarius __asm __volatile("stda %%f0, [%0] %1" 264287726Smarius : : "r" (buf), "n" (ASI_BLK_COMMIT_S)); 265287726Smarius membar(Sync); 266287726Smarius wr(fprs, reg, 0); 267287726Smarius intr_restore(s); 268287726Smarius} 269287726Smarius 270287726Smariusint 271287726Smariusofw_pci_read_ivar(device_t dev, device_t child __unused, int which, 272287726Smarius uintptr_t *result) 273287726Smarius{ 274287726Smarius struct ofw_pci_softc *sc; 275287726Smarius 276287726Smarius switch (which) { 277287726Smarius case PCIB_IVAR_DOMAIN: 278287726Smarius *result = device_get_unit(dev); 279287726Smarius return (0); 280287726Smarius case PCIB_IVAR_BUS: 281287726Smarius sc = device_get_softc(dev); 282287726Smarius *result = sc->sc_pci_secbus; 283287726Smarius return (0); 284287726Smarius } 285287726Smarius return (ENOENT); 286287726Smarius} 287287726Smarius 288287726Smariusstruct resource * 289287726Smariusofw_pci_alloc_resource(device_t bus, device_t child, int type, int *rid, 290294883Sjhibbits rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 291287726Smarius{ 292287726Smarius struct ofw_pci_softc *sc; 293287726Smarius struct resource *rv; 294287726Smarius struct rman *rm; 295287726Smarius 296287726Smarius sc = device_get_softc(bus); 297287726Smarius switch (type) { 298287726Smarius case SYS_RES_IRQ: 299287726Smarius /* 300287726Smarius * XXX: Don't accept blank ranges for now, only single 301287726Smarius * interrupts. The other case should not happen with 302287726Smarius * the MI PCI code ... 303287726Smarius * XXX: This may return a resource that is out of the 304287726Smarius * range that was specified. Is this correct ...? 305287726Smarius */ 306287726Smarius if (start != end) 307287726Smarius panic("%s: XXX: interrupt range", __func__); 308287726Smarius return (bus_generic_alloc_resource(bus, child, type, rid, 309287726Smarius start, end, count, flags)); 310287726Smarius case SYS_RES_MEMORY: 311287726Smarius rm = &sc->sc_pci_mem_rman; 312287726Smarius break; 313287726Smarius case SYS_RES_IOPORT: 314287726Smarius rm = &sc->sc_pci_io_rman; 315287726Smarius break; 316287726Smarius default: 317287726Smarius return (NULL); 318287726Smarius } 319287726Smarius 320287726Smarius rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 321287726Smarius child); 322287726Smarius if (rv == NULL) 323287726Smarius return (NULL); 324287726Smarius rman_set_rid(rv, *rid); 325287726Smarius 326287726Smarius if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, type, 327287726Smarius *rid, rv) != 0) { 328287726Smarius rman_release_resource(rv); 329287726Smarius return (NULL); 330287726Smarius } 331287726Smarius return (rv); 332287726Smarius} 333287726Smarius 334287726Smariusint 335287726Smariusofw_pci_activate_resource(device_t bus, device_t child, int type, int rid, 336287726Smarius struct resource *r) 337287726Smarius{ 338287726Smarius struct ofw_pci_softc *sc; 339287726Smarius struct bus_space_tag *tag; 340287726Smarius 341287726Smarius sc = device_get_softc(bus); 342287726Smarius switch (type) { 343287726Smarius case SYS_RES_IRQ: 344287726Smarius return (bus_generic_activate_resource(bus, child, type, rid, 345287726Smarius r)); 346287726Smarius case SYS_RES_MEMORY: 347287726Smarius tag = sparc64_alloc_bus_tag(r, PCI_MEMORY_BUS_SPACE); 348287726Smarius if (tag == NULL) 349287726Smarius return (ENOMEM); 350287726Smarius rman_set_bustag(r, tag); 351287726Smarius rman_set_bushandle(r, sc->sc_pci_bh[OFW_PCI_CS_MEM32] + 352287726Smarius rman_get_start(r)); 353287726Smarius break; 354287726Smarius case SYS_RES_IOPORT: 355287726Smarius rman_set_bustag(r, sc->sc_pci_iot); 356287726Smarius rman_set_bushandle(r, sc->sc_pci_bh[OFW_PCI_CS_IO] + 357287726Smarius rman_get_start(r)); 358287726Smarius break; 359287726Smarius } 360287726Smarius return (rman_activate_resource(r)); 361287726Smarius} 362287726Smarius 363287726Smariusint 364287726Smariusofw_pci_adjust_resource(device_t bus, device_t child, int type, 365294883Sjhibbits struct resource *r, rman_res_t start, rman_res_t end) 366287726Smarius{ 367287726Smarius struct ofw_pci_softc *sc; 368287726Smarius struct rman *rm; 369287726Smarius 370287726Smarius sc = device_get_softc(bus); 371287726Smarius switch (type) { 372287726Smarius case SYS_RES_IRQ: 373287726Smarius return (bus_generic_adjust_resource(bus, child, type, r, 374287726Smarius start, end)); 375287726Smarius case SYS_RES_MEMORY: 376287726Smarius rm = &sc->sc_pci_mem_rman; 377287726Smarius break; 378287726Smarius case SYS_RES_IOPORT: 379287726Smarius rm = &sc->sc_pci_io_rman; 380287726Smarius break; 381287726Smarius default: 382287726Smarius return (EINVAL); 383287726Smarius } 384287726Smarius if (rman_is_region_manager(r, rm) == 0) 385287726Smarius return (EINVAL); 386287726Smarius return (rman_adjust_resource(r, start, end)); 387287726Smarius} 388287726Smarius 389287726Smariusbus_dma_tag_t 390287726Smariusofw_pci_get_dma_tag(device_t bus, device_t child __unused) 391287726Smarius{ 392287726Smarius struct ofw_pci_softc *sc; 393287726Smarius 394287726Smarius sc = device_get_softc(bus); 395287726Smarius return (sc->sc_pci_dmat); 396287726Smarius} 397287726Smarius 398287726Smariusphandle_t 399287726Smariusofw_pci_get_node(device_t bus, device_t child __unused) 400287726Smarius{ 401287726Smarius struct ofw_pci_softc *sc; 402287726Smarius 403287726Smarius sc = device_get_softc(bus); 404287726Smarius /* We only have one child, the PCI bus, which needs our own node. */ 405287726Smarius return (sc->sc_node); 406287726Smarius} 407