1153577Sjhb/*- 2153577Sjhb * Copyright (c) 2005 John Baldwin <jhb@FreeBSD.org> 3153577Sjhb * 4153577Sjhb * Redistribution and use in source and binary forms, with or without 5153577Sjhb * modification, are permitted provided that the following conditions 6153577Sjhb * are met: 7153577Sjhb * 1. Redistributions of source code must retain the above copyright 8153577Sjhb * notice, this list of conditions and the following disclaimer. 9153577Sjhb * 2. Redistributions in binary form must reproduce the above copyright 10153577Sjhb * notice, this list of conditions and the following disclaimer in the 11153577Sjhb * documentation and/or other materials provided with the distribution. 12153577Sjhb * 13153577Sjhb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14153577Sjhb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15153577Sjhb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16153577Sjhb * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17153577Sjhb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18153577Sjhb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19153577Sjhb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20153577Sjhb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21153577Sjhb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22153577Sjhb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23153577Sjhb * SUCH DAMAGE. 24153577Sjhb */ 25153577Sjhb 26153577Sjhb#include <sys/cdefs.h> 27153577Sjhb__FBSDID("$FreeBSD: stable/11/sys/dev/pci/vga_pci.c 367457 2020-11-07 18:10:59Z dim $"); 28153577Sjhb 29153577Sjhb/* 30153577Sjhb * Simple driver for PCI VGA display devices. Drivers such as agp(4) and 31153577Sjhb * drm(4) should attach as children of this device. 32153577Sjhb * 33153577Sjhb * XXX: The vgapci name is a hack until we somehow merge the isa vga driver 34153577Sjhb * in or rename it. 35153577Sjhb */ 36153577Sjhb 37153577Sjhb#include <sys/param.h> 38153577Sjhb#include <sys/bus.h> 39153577Sjhb#include <sys/kernel.h> 40153577Sjhb#include <sys/module.h> 41189373Sjhb#include <sys/rman.h> 42198251Sjkim#include <sys/sysctl.h> 43189373Sjhb#include <sys/systm.h> 44153577Sjhb 45268351Smarcel#if defined(__amd64__) || defined(__i386__) 46254882Sdumbbell#include <vm/vm.h> 47254882Sdumbbell#include <vm/pmap.h> 48254882Sdumbbell#endif 49254882Sdumbbell 50153577Sjhb#include <dev/pci/pcireg.h> 51153577Sjhb#include <dev/pci/pcivar.h> 52153577Sjhb 53279487Sdumbbell#include <compat/x86bios/x86bios.h> /* To re-POST the card. */ 54279487Sdumbbell 55189373Sjhbstruct vga_resource { 56189373Sjhb struct resource *vr_res; 57189373Sjhb int vr_refs; 58189373Sjhb}; 59189373Sjhb 60183095Sjhbstruct vga_pci_softc { 61183095Sjhb device_t vga_msi_child; /* Child driver using MSI. */ 62249315Sjhb struct vga_resource vga_bars[PCIR_MAX_BAR_0 + 1]; 63249315Sjhb struct vga_resource vga_bios; 64183095Sjhb}; 65183095Sjhb 66198251SjkimSYSCTL_DECL(_hw_pci); 67198251Sjkim 68255571Sdumbbellstatic struct vga_resource *lookup_res(struct vga_pci_softc *sc, int rid); 69255571Sdumbbellstatic struct resource *vga_pci_alloc_resource(device_t dev, device_t child, 70294883Sjhibbits int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, 71294883Sjhibbits u_int flags); 72255571Sdumbbellstatic int vga_pci_release_resource(device_t dev, device_t child, int type, 73255571Sdumbbell int rid, struct resource *r); 74255571Sdumbbell 75198251Sjkimint vga_pci_default_unit = -1; 76198964SjkimSYSCTL_INT(_hw_pci, OID_AUTO, default_vgapci_unit, CTLFLAG_RDTUN, 77198251Sjkim &vga_pci_default_unit, -1, "Default VGA-compatible display"); 78198251Sjkim 79254882Sdumbbellint 80254882Sdumbbellvga_pci_is_boot_display(device_t dev) 81254882Sdumbbell{ 82259679Sdumbbell int unit; 83259679Sdumbbell device_t pcib; 84259679Sdumbbell uint16_t config; 85254882Sdumbbell 86259679Sdumbbell /* Check that the given device is a video card */ 87259679Sdumbbell if ((pci_get_class(dev) != PCIC_DISPLAY && 88259679Sdumbbell (pci_get_class(dev) != PCIC_OLD || 89259679Sdumbbell pci_get_subclass(dev) != PCIS_OLD_VGA))) 90259679Sdumbbell return (0); 91259679Sdumbbell 92259679Sdumbbell unit = device_get_unit(dev); 93259679Sdumbbell 94259679Sdumbbell if (vga_pci_default_unit >= 0) { 95259679Sdumbbell /* 96259679Sdumbbell * The boot display device was determined by a previous 97259679Sdumbbell * call to this function, or the user forced it using 98259679Sdumbbell * the hw.pci.default_vgapci_unit tunable. 99259679Sdumbbell */ 100259679Sdumbbell return (vga_pci_default_unit == unit); 101259679Sdumbbell } 102259679Sdumbbell 103254882Sdumbbell /* 104259679Sdumbbell * The primary video card used as a boot display must have the 105259679Sdumbbell * "I/O" and "Memory Address Space Decoding" bits set in its 106259679Sdumbbell * Command register. 107259679Sdumbbell * 108259679Sdumbbell * Furthermore, if the card is attached to a bridge, instead of 109259679Sdumbbell * the root PCI bus, the bridge must have the "VGA Enable" bit 110259679Sdumbbell * set in its Control register. 111254882Sdumbbell */ 112259679Sdumbbell 113259679Sdumbbell pcib = device_get_parent(device_get_parent(dev)); 114259679Sdumbbell if (device_get_devclass(device_get_parent(pcib)) == 115259679Sdumbbell devclass_find("pci")) { 116259679Sdumbbell /* 117259679Sdumbbell * The parent bridge is a PCI-to-PCI bridge: check the 118259679Sdumbbell * value of the "VGA Enable" bit. 119259679Sdumbbell */ 120259679Sdumbbell config = pci_read_config(pcib, PCIR_BRIDGECTL_1, 2); 121259679Sdumbbell if ((config & PCIB_BCR_VGA_ENABLE) == 0) 122259679Sdumbbell return (0); 123259679Sdumbbell } 124259679Sdumbbell 125259679Sdumbbell config = pci_read_config(dev, PCIR_COMMAND, 2); 126259679Sdumbbell if ((config & (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN)) == 0) 127259679Sdumbbell return (0); 128259679Sdumbbell 129284012Shselasky /* 130284012Shselasky * Disable interrupts until a chipset driver is loaded for 131284012Shselasky * this PCI device. Else unhandled display adapter interrupts 132284012Shselasky * might freeze the CPU. 133284012Shselasky */ 134284012Shselasky pci_write_config(dev, PCIR_COMMAND, config | PCIM_CMD_INTxDIS, 2); 135284012Shselasky 136259679Sdumbbell /* This video card is the boot display: record its unit number. */ 137259679Sdumbbell vga_pci_default_unit = unit; 138259679Sdumbbell device_set_flags(dev, 1); 139259679Sdumbbell 140259679Sdumbbell return (1); 141254882Sdumbbell} 142254882Sdumbbell 143254882Sdumbbellvoid * 144254882Sdumbbellvga_pci_map_bios(device_t dev, size_t *size) 145254882Sdumbbell{ 146254882Sdumbbell int rid; 147254882Sdumbbell struct resource *res; 148254882Sdumbbell 149268351Smarcel#if defined(__amd64__) || defined(__i386__) 150254882Sdumbbell if (vga_pci_is_boot_display(dev)) { 151254882Sdumbbell /* 152254882Sdumbbell * On x86, the System BIOS copy the default display 153254882Sdumbbell * device's Video BIOS at a fixed location in system 154254882Sdumbbell * memory (0xC0000, 128 kBytes long) at boot time. 155254882Sdumbbell * 156254882Sdumbbell * We use this copy for the default boot device, because 157254882Sdumbbell * the original ROM may not be valid after boot. 158254882Sdumbbell */ 159254882Sdumbbell 160254882Sdumbbell *size = VGA_PCI_BIOS_SHADOW_SIZE; 161254882Sdumbbell return (pmap_mapbios(VGA_PCI_BIOS_SHADOW_ADDR, *size)); 162254882Sdumbbell } 163254882Sdumbbell#endif 164254882Sdumbbell 165254882Sdumbbell rid = PCIR_BIOS; 166296336Sjhibbits res = vga_pci_alloc_resource(dev, NULL, SYS_RES_MEMORY, &rid, 0, 167296336Sjhibbits ~0, 1, RF_ACTIVE); 168254882Sdumbbell if (res == NULL) { 169254882Sdumbbell return (NULL); 170254882Sdumbbell } 171254882Sdumbbell 172254882Sdumbbell *size = rman_get_size(res); 173254882Sdumbbell return (rman_get_virtual(res)); 174254882Sdumbbell} 175254882Sdumbbell 176254882Sdumbbellvoid 177254882Sdumbbellvga_pci_unmap_bios(device_t dev, void *bios) 178254882Sdumbbell{ 179255571Sdumbbell struct vga_resource *vr; 180254882Sdumbbell 181254882Sdumbbell if (bios == NULL) { 182254882Sdumbbell return; 183254882Sdumbbell } 184254882Sdumbbell 185268351Smarcel#if defined(__amd64__) || defined(__i386__) 186254882Sdumbbell if (vga_pci_is_boot_display(dev)) { 187254882Sdumbbell /* We mapped the BIOS shadow copy located at 0xC0000. */ 188254882Sdumbbell pmap_unmapdev((vm_offset_t)bios, VGA_PCI_BIOS_SHADOW_SIZE); 189254882Sdumbbell 190254882Sdumbbell return; 191254882Sdumbbell } 192254882Sdumbbell#endif 193254882Sdumbbell 194254882Sdumbbell /* 195255571Sdumbbell * Look up the PCIR_BIOS resource in our softc. It should match 196255571Sdumbbell * the address we returned previously. 197254882Sdumbbell */ 198255571Sdumbbell vr = lookup_res(device_get_softc(dev), PCIR_BIOS); 199255571Sdumbbell KASSERT(vr->vr_res != NULL, ("vga_pci_unmap_bios: bios not mapped")); 200255571Sdumbbell KASSERT(rman_get_virtual(vr->vr_res) == bios, 201255571Sdumbbell ("vga_pci_unmap_bios: mismatch")); 202255571Sdumbbell vga_pci_release_resource(dev, NULL, SYS_RES_MEMORY, PCIR_BIOS, 203255571Sdumbbell vr->vr_res); 204254882Sdumbbell} 205254882Sdumbbell 206279487Sdumbbellint 207279487Sdumbbellvga_pci_repost(device_t dev) 208279487Sdumbbell{ 209279494Sdumbbell#if defined(__amd64__) || (defined(__i386__) && !defined(PC98)) 210279487Sdumbbell x86regs_t regs; 211279487Sdumbbell 212279487Sdumbbell if (!vga_pci_is_boot_display(dev)) 213279487Sdumbbell return (EINVAL); 214279487Sdumbbell 215279487Sdumbbell if (x86bios_get_orm(VGA_PCI_BIOS_SHADOW_ADDR) == NULL) 216279487Sdumbbell return (ENOTSUP); 217279487Sdumbbell 218279487Sdumbbell x86bios_init_regs(®s); 219279487Sdumbbell 220279487Sdumbbell regs.R_AH = pci_get_bus(dev); 221279487Sdumbbell regs.R_AL = (pci_get_slot(dev) << 3) | (pci_get_function(dev) & 0x07); 222279487Sdumbbell regs.R_DL = 0x80; 223279487Sdumbbell 224279487Sdumbbell device_printf(dev, "REPOSTing\n"); 225279487Sdumbbell x86bios_call(®s, X86BIOS_PHYSTOSEG(VGA_PCI_BIOS_SHADOW_ADDR + 3), 226279487Sdumbbell X86BIOS_PHYSTOOFF(VGA_PCI_BIOS_SHADOW_ADDR + 3)); 227279487Sdumbbell 228279487Sdumbbell x86bios_get_intr(0x10); 229279487Sdumbbell 230279487Sdumbbell return (0); 231279487Sdumbbell#else 232279487Sdumbbell return (ENOTSUP); 233279487Sdumbbell#endif 234279487Sdumbbell} 235279487Sdumbbell 236153577Sjhbstatic int 237153577Sjhbvga_pci_probe(device_t dev) 238153577Sjhb{ 239153577Sjhb 240153577Sjhb switch (pci_get_class(dev)) { 241153577Sjhb case PCIC_DISPLAY: 242153577Sjhb break; 243153577Sjhb case PCIC_OLD: 244153577Sjhb if (pci_get_subclass(dev) != PCIS_OLD_VGA) 245153577Sjhb return (ENXIO); 246153577Sjhb break; 247153577Sjhb default: 248153577Sjhb return (ENXIO); 249153577Sjhb } 250198251Sjkim 251198251Sjkim /* Probe default display. */ 252259679Sdumbbell vga_pci_is_boot_display(dev); 253198251Sjkim 254153577Sjhb device_set_desc(dev, "VGA-compatible display"); 255153646Sjhb return (BUS_PROBE_GENERIC); 256153577Sjhb} 257153577Sjhb 258153577Sjhbstatic int 259153577Sjhbvga_pci_attach(device_t dev) 260153577Sjhb{ 261153577Sjhb 262153577Sjhb bus_generic_probe(dev); 263153577Sjhb 264153577Sjhb /* Always create a drm child for now to make it easier on drm. */ 265153577Sjhb device_add_child(dev, "drm", -1); 266235846Skib device_add_child(dev, "drmn", -1); 267153577Sjhb bus_generic_attach(dev); 268259679Sdumbbell 269259679Sdumbbell if (vga_pci_is_boot_display(dev)) 270259679Sdumbbell device_printf(dev, "Boot video device\n"); 271259679Sdumbbell 272153577Sjhb return (0); 273153577Sjhb} 274153577Sjhb 275153577Sjhbstatic int 276153577Sjhbvga_pci_suspend(device_t dev) 277153577Sjhb{ 278153577Sjhb 279199002Sjkim return (bus_generic_suspend(dev)); 280153577Sjhb} 281153577Sjhb 282153577Sjhbstatic int 283153577Sjhbvga_pci_resume(device_t dev) 284153577Sjhb{ 285153577Sjhb 286153577Sjhb return (bus_generic_resume(dev)); 287153577Sjhb} 288153577Sjhb 289153577Sjhb/* Bus interface. */ 290153577Sjhb 291153577Sjhbstatic int 292153577Sjhbvga_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 293153577Sjhb{ 294153577Sjhb 295153577Sjhb return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 296153577Sjhb} 297153577Sjhb 298153577Sjhbstatic int 299153577Sjhbvga_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 300153577Sjhb{ 301153577Sjhb 302153577Sjhb return (EINVAL); 303153577Sjhb} 304153577Sjhb 305183194Srnolandstatic int 306183194Srnolandvga_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 307183194Srnoland int flags, driver_filter_t *filter, driver_intr_t *intr, void *arg, 308183194Srnoland void **cookiep) 309183194Srnoland{ 310183194Srnoland return (BUS_SETUP_INTR(device_get_parent(dev), dev, irq, flags, 311183194Srnoland filter, intr, arg, cookiep)); 312183194Srnoland} 313183194Srnoland 314183194Srnolandstatic int 315183194Srnolandvga_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 316183194Srnoland void *cookie) 317183194Srnoland{ 318183194Srnoland return (BUS_TEARDOWN_INTR(device_get_parent(dev), dev, irq, cookie)); 319183194Srnoland} 320183194Srnoland 321249315Sjhbstatic struct vga_resource * 322249315Sjhblookup_res(struct vga_pci_softc *sc, int rid) 323249315Sjhb{ 324249315Sjhb int bar; 325249315Sjhb 326249315Sjhb if (rid == PCIR_BIOS) 327249315Sjhb return (&sc->vga_bios); 328249315Sjhb bar = PCI_RID2BAR(rid); 329249315Sjhb if (bar >= 0 && bar <= PCIR_MAX_BAR_0) 330249315Sjhb return (&sc->vga_bars[bar]); 331249315Sjhb return (NULL); 332249315Sjhb} 333249315Sjhb 334153577Sjhbstatic struct resource * 335153577Sjhbvga_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 336294883Sjhibbits rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 337153577Sjhb{ 338249315Sjhb struct vga_resource *vr; 339153577Sjhb 340189373Sjhb switch (type) { 341189373Sjhb case SYS_RES_MEMORY: 342189373Sjhb case SYS_RES_IOPORT: 343189373Sjhb /* 344189373Sjhb * For BARs, we cache the resource so that we only allocate it 345189373Sjhb * from the PCI bus once. 346189373Sjhb */ 347249315Sjhb vr = lookup_res(device_get_softc(dev), *rid); 348249315Sjhb if (vr == NULL) 349189373Sjhb return (NULL); 350249315Sjhb if (vr->vr_res == NULL) 351249315Sjhb vr->vr_res = bus_alloc_resource(dev, type, rid, start, 352249315Sjhb end, count, flags); 353249315Sjhb if (vr->vr_res != NULL) 354249315Sjhb vr->vr_refs++; 355249315Sjhb return (vr->vr_res); 356189373Sjhb } 357153577Sjhb return (bus_alloc_resource(dev, type, rid, start, end, count, flags)); 358153577Sjhb} 359153577Sjhb 360153577Sjhbstatic int 361153577Sjhbvga_pci_release_resource(device_t dev, device_t child, int type, int rid, 362153577Sjhb struct resource *r) 363153577Sjhb{ 364249315Sjhb struct vga_resource *vr; 365249315Sjhb int error; 366153577Sjhb 367189373Sjhb switch (type) { 368189373Sjhb case SYS_RES_MEMORY: 369189373Sjhb case SYS_RES_IOPORT: 370189373Sjhb /* 371189373Sjhb * For BARs, we release the resource from the PCI bus 372189373Sjhb * when the last child reference goes away. 373189373Sjhb */ 374249315Sjhb vr = lookup_res(device_get_softc(dev), rid); 375249315Sjhb if (vr == NULL) 376189373Sjhb return (EINVAL); 377249315Sjhb if (vr->vr_res == NULL) 378189373Sjhb return (EINVAL); 379249315Sjhb KASSERT(vr->vr_res == r, ("vga_pci resource mismatch")); 380249315Sjhb if (vr->vr_refs > 1) { 381249315Sjhb vr->vr_refs--; 382189373Sjhb return (0); 383189373Sjhb } 384249315Sjhb KASSERT(vr->vr_refs > 0, 385189373Sjhb ("vga_pci resource reference count underflow")); 386189373Sjhb error = bus_release_resource(dev, type, rid, r); 387189373Sjhb if (error == 0) { 388249315Sjhb vr->vr_res = NULL; 389249315Sjhb vr->vr_refs = 0; 390189373Sjhb } 391189373Sjhb return (error); 392189373Sjhb } 393189373Sjhb 394153577Sjhb return (bus_release_resource(dev, type, rid, r)); 395153577Sjhb} 396153577Sjhb 397153577Sjhb/* PCI interface. */ 398153577Sjhb 399153577Sjhbstatic uint32_t 400153577Sjhbvga_pci_read_config(device_t dev, device_t child, int reg, int width) 401153577Sjhb{ 402153577Sjhb 403153577Sjhb return (pci_read_config(dev, reg, width)); 404153577Sjhb} 405153577Sjhb 406153577Sjhbstatic void 407205018Sjhbvga_pci_write_config(device_t dev, device_t child, int reg, 408153577Sjhb uint32_t val, int width) 409153577Sjhb{ 410153577Sjhb 411153577Sjhb pci_write_config(dev, reg, val, width); 412153577Sjhb} 413153577Sjhb 414153577Sjhbstatic int 415153577Sjhbvga_pci_enable_busmaster(device_t dev, device_t child) 416153577Sjhb{ 417153577Sjhb 418153577Sjhb return (pci_enable_busmaster(dev)); 419153577Sjhb} 420153577Sjhb 421153577Sjhbstatic int 422153577Sjhbvga_pci_disable_busmaster(device_t dev, device_t child) 423153577Sjhb{ 424153577Sjhb 425153577Sjhb return (pci_disable_busmaster(dev)); 426153577Sjhb} 427153577Sjhb 428153577Sjhbstatic int 429153577Sjhbvga_pci_enable_io(device_t dev, device_t child, int space) 430153577Sjhb{ 431153577Sjhb 432153577Sjhb device_printf(dev, "child %s requested pci_enable_io\n", 433153577Sjhb device_get_nameunit(child)); 434153577Sjhb return (pci_enable_io(dev, space)); 435153577Sjhb} 436153577Sjhb 437153577Sjhbstatic int 438153577Sjhbvga_pci_disable_io(device_t dev, device_t child, int space) 439153577Sjhb{ 440153577Sjhb 441153577Sjhb device_printf(dev, "child %s requested pci_disable_io\n", 442153577Sjhb device_get_nameunit(child)); 443153577Sjhb return (pci_disable_io(dev, space)); 444153577Sjhb} 445153577Sjhb 446153577Sjhbstatic int 447183095Sjhbvga_pci_get_vpd_ident(device_t dev, device_t child, const char **identptr) 448183095Sjhb{ 449183095Sjhb 450183095Sjhb return (pci_get_vpd_ident(dev, identptr)); 451183095Sjhb} 452183095Sjhb 453183095Sjhbstatic int 454183095Sjhbvga_pci_get_vpd_readonly(device_t dev, device_t child, const char *kw, 455183095Sjhb const char **vptr) 456183095Sjhb{ 457183095Sjhb 458183095Sjhb return (pci_get_vpd_readonly(dev, kw, vptr)); 459183095Sjhb} 460183095Sjhb 461183095Sjhbstatic int 462153577Sjhbvga_pci_set_powerstate(device_t dev, device_t child, int state) 463153577Sjhb{ 464153577Sjhb 465153577Sjhb device_printf(dev, "child %s requested pci_set_powerstate\n", 466153577Sjhb device_get_nameunit(child)); 467153577Sjhb return (pci_set_powerstate(dev, state)); 468153577Sjhb} 469153577Sjhb 470153577Sjhbstatic int 471153577Sjhbvga_pci_get_powerstate(device_t dev, device_t child) 472153577Sjhb{ 473153577Sjhb 474153577Sjhb device_printf(dev, "child %s requested pci_get_powerstate\n", 475153577Sjhb device_get_nameunit(child)); 476153577Sjhb return (pci_get_powerstate(dev)); 477153577Sjhb} 478153577Sjhb 479153577Sjhbstatic int 480153577Sjhbvga_pci_assign_interrupt(device_t dev, device_t child) 481153577Sjhb{ 482153577Sjhb 483153577Sjhb device_printf(dev, "child %s requested pci_assign_interrupt\n", 484153577Sjhb device_get_nameunit(child)); 485153577Sjhb return (PCI_ASSIGN_INTERRUPT(device_get_parent(dev), dev)); 486153577Sjhb} 487153577Sjhb 488153577Sjhbstatic int 489232472Sjhbvga_pci_find_cap(device_t dev, device_t child, int capability, 490232472Sjhb int *capreg) 491232472Sjhb{ 492232472Sjhb 493232472Sjhb return (pci_find_cap(dev, capability, capreg)); 494232472Sjhb} 495232472Sjhb 496232472Sjhbstatic int 497331111Sbryanvvga_pci_find_next_cap(device_t dev, device_t child, int capability, 498331111Sbryanv int start, int *capreg) 499331111Sbryanv{ 500331111Sbryanv 501331111Sbryanv return (pci_find_next_cap(dev, capability, start, capreg)); 502331111Sbryanv} 503331111Sbryanv 504331111Sbryanvstatic int 505153577Sjhbvga_pci_find_extcap(device_t dev, device_t child, int capability, 506153577Sjhb int *capreg) 507153577Sjhb{ 508153577Sjhb 509153577Sjhb return (pci_find_extcap(dev, capability, capreg)); 510153577Sjhb} 511153577Sjhb 512183095Sjhbstatic int 513331111Sbryanvvga_pci_find_next_extcap(device_t dev, device_t child, int capability, 514331111Sbryanv int start, int *capreg) 515331111Sbryanv{ 516331111Sbryanv 517331111Sbryanv return (pci_find_next_extcap(dev, capability, start, capreg)); 518331111Sbryanv} 519331111Sbryanv 520331111Sbryanvstatic int 521232472Sjhbvga_pci_find_htcap(device_t dev, device_t child, int capability, 522232472Sjhb int *capreg) 523232472Sjhb{ 524232472Sjhb 525232472Sjhb return (pci_find_htcap(dev, capability, capreg)); 526232472Sjhb} 527232472Sjhb 528232472Sjhbstatic int 529331111Sbryanvvga_pci_find_next_htcap(device_t dev, device_t child, int capability, 530331111Sbryanv int start, int *capreg) 531331111Sbryanv{ 532331111Sbryanv 533331111Sbryanv return (pci_find_next_htcap(dev, capability, start, capreg)); 534331111Sbryanv} 535331111Sbryanv 536331111Sbryanvstatic int 537183095Sjhbvga_pci_alloc_msi(device_t dev, device_t child, int *count) 538183095Sjhb{ 539183095Sjhb struct vga_pci_softc *sc; 540183095Sjhb int error; 541183095Sjhb 542183095Sjhb sc = device_get_softc(dev); 543183095Sjhb if (sc->vga_msi_child != NULL) 544183095Sjhb return (EBUSY); 545183095Sjhb error = pci_alloc_msi(dev, count); 546183095Sjhb if (error == 0) 547183095Sjhb sc->vga_msi_child = child; 548183095Sjhb return (error); 549183095Sjhb} 550183095Sjhb 551183095Sjhbstatic int 552183095Sjhbvga_pci_alloc_msix(device_t dev, device_t child, int *count) 553183095Sjhb{ 554183095Sjhb struct vga_pci_softc *sc; 555183095Sjhb int error; 556183095Sjhb 557183095Sjhb sc = device_get_softc(dev); 558183095Sjhb if (sc->vga_msi_child != NULL) 559183095Sjhb return (EBUSY); 560183095Sjhb error = pci_alloc_msix(dev, count); 561183095Sjhb if (error == 0) 562183095Sjhb sc->vga_msi_child = child; 563183095Sjhb return (error); 564183095Sjhb} 565183095Sjhb 566183095Sjhbstatic int 567183095Sjhbvga_pci_remap_msix(device_t dev, device_t child, int count, 568183095Sjhb const u_int *vectors) 569183095Sjhb{ 570183095Sjhb struct vga_pci_softc *sc; 571183095Sjhb 572183095Sjhb sc = device_get_softc(dev); 573183095Sjhb if (sc->vga_msi_child != child) 574183095Sjhb return (ENXIO); 575183095Sjhb return (pci_remap_msix(dev, count, vectors)); 576183095Sjhb} 577183095Sjhb 578183095Sjhbstatic int 579183095Sjhbvga_pci_release_msi(device_t dev, device_t child) 580183095Sjhb{ 581183095Sjhb struct vga_pci_softc *sc; 582183095Sjhb int error; 583183095Sjhb 584183095Sjhb sc = device_get_softc(dev); 585183095Sjhb if (sc->vga_msi_child != child) 586183095Sjhb return (ENXIO); 587183095Sjhb error = pci_release_msi(dev); 588183095Sjhb if (error == 0) 589183095Sjhb sc->vga_msi_child = NULL; 590183095Sjhb return (error); 591183095Sjhb} 592183095Sjhb 593183095Sjhbstatic int 594183095Sjhbvga_pci_msi_count(device_t dev, device_t child) 595183095Sjhb{ 596183095Sjhb 597183095Sjhb return (pci_msi_count(dev)); 598183095Sjhb} 599183095Sjhb 600183095Sjhbstatic int 601183095Sjhbvga_pci_msix_count(device_t dev, device_t child) 602183095Sjhb{ 603183095Sjhb 604183095Sjhb return (pci_msix_count(dev)); 605183095Sjhb} 606183095Sjhb 607249476Skibstatic bus_dma_tag_t 608249476Skibvga_pci_get_dma_tag(device_t bus, device_t child) 609249476Skib{ 610249476Skib 611249476Skib return (bus_get_dma_tag(bus)); 612249476Skib} 613249476Skib 614153577Sjhbstatic device_method_t vga_pci_methods[] = { 615153577Sjhb /* Device interface */ 616153577Sjhb DEVMETHOD(device_probe, vga_pci_probe), 617153577Sjhb DEVMETHOD(device_attach, vga_pci_attach), 618153577Sjhb DEVMETHOD(device_shutdown, bus_generic_shutdown), 619153577Sjhb DEVMETHOD(device_suspend, vga_pci_suspend), 620153577Sjhb DEVMETHOD(device_resume, vga_pci_resume), 621153577Sjhb 622153577Sjhb /* Bus interface */ 623153577Sjhb DEVMETHOD(bus_read_ivar, vga_pci_read_ivar), 624153577Sjhb DEVMETHOD(bus_write_ivar, vga_pci_write_ivar), 625183194Srnoland DEVMETHOD(bus_setup_intr, vga_pci_setup_intr), 626183194Srnoland DEVMETHOD(bus_teardown_intr, vga_pci_teardown_intr), 627153577Sjhb DEVMETHOD(bus_alloc_resource, vga_pci_alloc_resource), 628153577Sjhb DEVMETHOD(bus_release_resource, vga_pci_release_resource), 629153577Sjhb DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 630153577Sjhb DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 631249476Skib DEVMETHOD(bus_get_dma_tag, vga_pci_get_dma_tag), 632153577Sjhb 633153577Sjhb /* PCI interface */ 634153577Sjhb DEVMETHOD(pci_read_config, vga_pci_read_config), 635153577Sjhb DEVMETHOD(pci_write_config, vga_pci_write_config), 636153577Sjhb DEVMETHOD(pci_enable_busmaster, vga_pci_enable_busmaster), 637153577Sjhb DEVMETHOD(pci_disable_busmaster, vga_pci_disable_busmaster), 638153577Sjhb DEVMETHOD(pci_enable_io, vga_pci_enable_io), 639153577Sjhb DEVMETHOD(pci_disable_io, vga_pci_disable_io), 640183095Sjhb DEVMETHOD(pci_get_vpd_ident, vga_pci_get_vpd_ident), 641183095Sjhb DEVMETHOD(pci_get_vpd_readonly, vga_pci_get_vpd_readonly), 642153577Sjhb DEVMETHOD(pci_get_powerstate, vga_pci_get_powerstate), 643153577Sjhb DEVMETHOD(pci_set_powerstate, vga_pci_set_powerstate), 644153577Sjhb DEVMETHOD(pci_assign_interrupt, vga_pci_assign_interrupt), 645232472Sjhb DEVMETHOD(pci_find_cap, vga_pci_find_cap), 646331111Sbryanv DEVMETHOD(pci_find_next_cap, vga_pci_find_next_cap), 647153577Sjhb DEVMETHOD(pci_find_extcap, vga_pci_find_extcap), 648331111Sbryanv DEVMETHOD(pci_find_next_extcap, vga_pci_find_next_extcap), 649232472Sjhb DEVMETHOD(pci_find_htcap, vga_pci_find_htcap), 650331111Sbryanv DEVMETHOD(pci_find_next_htcap, vga_pci_find_next_htcap), 651183095Sjhb DEVMETHOD(pci_alloc_msi, vga_pci_alloc_msi), 652183095Sjhb DEVMETHOD(pci_alloc_msix, vga_pci_alloc_msix), 653183095Sjhb DEVMETHOD(pci_remap_msix, vga_pci_remap_msix), 654183095Sjhb DEVMETHOD(pci_release_msi, vga_pci_release_msi), 655183095Sjhb DEVMETHOD(pci_msi_count, vga_pci_msi_count), 656183095Sjhb DEVMETHOD(pci_msix_count, vga_pci_msix_count), 657153577Sjhb 658153577Sjhb { 0, 0 } 659153577Sjhb}; 660153577Sjhb 661153577Sjhbstatic driver_t vga_pci_driver = { 662153577Sjhb "vgapci", 663153577Sjhb vga_pci_methods, 664183095Sjhb sizeof(struct vga_pci_softc), 665153577Sjhb}; 666153577Sjhb 667153577Sjhbstatic devclass_t vga_devclass; 668153577Sjhb 669153577SjhbDRIVER_MODULE(vgapci, pci, vga_pci_driver, vga_devclass, 0, 0); 670279494SdumbbellMODULE_DEPEND(vgapci, x86bios, 1, 1, 1); 671