[PATCH:libpciaccess 2/2] Update NetBSD support.
Thomas Klausner
wiz at NetBSD.org
Tue Jun 11 02:46:26 PDT 2013
>From Michael Lorenz <macallan at NetBSD.org>
Signed-off-by: Michael Lorenz <macallan at NetBSD.org>
Signed-off-by: Thomas Klausner <wiz at NetBSD.org>
Reviewed-by: Matthieu Herrb <matthieu.herrb at laas.fr>
---
configure.ac | 4 +-
src/netbsd_pci.c | 471 +++++++++++++++++++++++++++++++++++++++----------------
2 files changed, 342 insertions(+), 133 deletions(-)
diff --git a/configure.ac b/configure.ac
index 91374e5..3441b63 100644
--- a/configure.ac
+++ b/configure.ac
@@ -77,10 +77,10 @@ case $host_os in
*netbsd*)
case $host in
*i386*)
- PCIACCESS_LIBS="-li386"
+ PCIACCESS_LIBS="-li386 -lpci"
;;
*x86_64*|*amd64*)
- PCIACCESS_LIBS="-lx86_64"
+ PCIACCESS_LIBS="-lx86_64 -lpci"
;;
esac
netbsd=yes
diff --git a/src/netbsd_pci.c b/src/netbsd_pci.c
index 63585e3..f5a90c0 100644
--- a/src/netbsd_pci.c
+++ b/src/netbsd_pci.c
@@ -1,6 +1,7 @@
/*
* Copyright (c) 2008 Juan Romero Pardines
* Copyright (c) 2008 Mark Kettenis
+ * Copyright (c) 2009 Michael Lorenz
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -20,12 +21,15 @@
#include <sys/mman.h>
#include <sys/types.h>
+#ifdef HAVE_MTRR
#include <machine/sysarch.h>
#include <machine/mtrr.h>
+#define netbsd_set_mtrr(mr, num) _X86_SYSARCH_L(set_mtrr)(mr, num)
+#endif
+#include <dev/pci/pcidevs.h>
#include <dev/pci/pciio.h>
#include <dev/pci/pcireg.h>
-#include <dev/pci/pcidevs.h>
#include <errno.h>
#include <fcntl.h>
@@ -35,126 +39,152 @@
#include <unistd.h>
+#include <pci.h>
+#include <dev/wscons/wsconsio.h>
+
#include "pciaccess.h"
#include "pciaccess_private.h"
-static int pcifd;
+typedef struct _pcibus {
+ int fd; /* /dev/pci* */
+ int num; /* bus number */
+ int maxdevs; /* maximum number of devices */
+} PciBus;
+
+static PciBus buses[32]; /* indexed by pci_device.domain */
+static int nbuses = 0; /* number of buses found */
+
+/*
+ * NetBSD's userland has a /dev/pci* entry for each bus but userland has no way
+ * to tell if a bus is a subordinate of another one or if it's on a different
+ * host bridge. On some architectures ( macppc for example ) all root buses have
+ * bus number 0 but on sparc64 for example the two roots in an Ultra60 have
+ * different bus numbers - one is 0 and the other 128.
+ * With each /dev/pci* we can map everything on the same root and we can also
+ * see all devices on the same root, trying to do that causes problems though:
+ * - since we can't tell which /dev/pci* is a subordinate we would find some
+ * devices more than once
+ * - we would have to guess subordinate bus numbers which is a waste of time
+ * since we can ask each /dev/pci* for its bus number so we can scan only the
+ * buses we know exist, not all 256 which may exist in each domain.
+ * - some bus_space_mmap() methods may limit mappings to address ranges which
+ * belong to known devices on that bus only.
+ * Each host bridge may or may not have its own IO range, to avoid guesswork
+ * here each /dev/pci* will let userland map its appropriate IO range at
+ * PCI_MAGIC_IO_RANGE if defined in <machine/param.h>
+ * With all this we should be able to use any PCI graphics device on any PCI
+ * bus on any architecture as long as Xorg has a driver, without allowing
+ * arbitrary mappings via /dev/mem and without userland having to know or care
+ * about translating bus addresses to physical addresses or the other way
+ * around.
+ */
static int
-pci_read(int bus, int dev, int func, uint32_t reg, uint32_t *val)
+pci_read(int domain, int bus, int dev, int func, uint32_t reg, uint32_t *val)
{
- struct pciio_bdf_cfgreg io;
- int err;
+ uint32_t rval;
- bzero(&io, sizeof(io));
- io.bus = bus;
- io.device = dev;
- io.function = func;
- io.cfgreg.reg = reg;
+ if ((domain < 0) || (domain > nbuses))
+ return -1;
- err = ioctl(pcifd, PCI_IOC_BDF_CFGREAD, &io);
- if (err)
- return (err);
+ if (pcibus_conf_read(buses[domain].fd, (unsigned int)bus,
+ (unsigned int)dev, (unsigned int)func, reg, &rval) == -1)
+ return (-1);
- *val = io.cfgreg.val;
+ *val = rval;
return 0;
}
static int
-pci_write(int bus, int dev, int func, uint32_t reg, uint32_t val)
+pci_write(int domain, int bus, int dev, int func, uint32_t reg, uint32_t val)
{
- struct pciio_bdf_cfgreg io;
- bzero(&io, sizeof(io));
- io.bus = bus;
- io.device = dev;
- io.function = func;
- io.cfgreg.reg = reg;
- io.cfgreg.val = val;
+ if ((domain < 0) || (domain > nbuses))
+ return -1;
- return ioctl(pcifd, PCI_IOC_BDF_CFGWRITE, &io);
+ return pcibus_conf_write(buses[domain].fd, (unsigned int)bus,
+ (unsigned int)dev, (unsigned int)func, reg, val);
}
static int
-pci_nfuncs(int bus, int dev)
+pci_nfuncs(int domain, int bus, int dev)
{
uint32_t hdr;
- if (pci_read(bus, dev, 0, PCI_BHLC_REG, &hdr) != 0)
+ if ((domain < 0) || (domain > nbuses))
+ return -1;
+
+ if (pci_read(domain, bus, dev, 0, PCI_BHLC_REG, &hdr) != 0)
return -1;
return (PCI_HDRTYPE_MULTIFN(hdr) ? 8 : 1);
}
+/*ARGSUSED*/
static int
pci_device_netbsd_map_range(struct pci_device *dev,
struct pci_device_mapping *map)
{
- struct mtrr mtrr;
- int fd, error, nmtrr, prot = PROT_READ;
+#ifdef HAVE_MTRR
+ struct mtrr m;
+ int n = 1;
+#endif
+ int prot, ret = 0;
- if ((fd = open("/dev/mem", O_RDWR | O_CLOEXEC)) == -1)
- return errno;
+ prot = PROT_READ;
if (map->flags & PCI_DEV_MAP_FLAG_WRITABLE)
prot |= PROT_WRITE;
-
- map->memory = mmap(NULL, map->size, prot, MAP_SHARED,
- fd, map->base);
+ map->memory = mmap(NULL, (size_t)map->size, prot, MAP_SHARED,
+ buses[dev->domain].fd, (off_t)map->base);
if (map->memory == MAP_FAILED)
return errno;
+#ifdef HAVE_MTRR
+ memset(&m, 0, sizeof(m));
+
/* No need to set an MTRR if it's the default mode. */
if ((map->flags & PCI_DEV_MAP_FLAG_CACHABLE) ||
(map->flags & PCI_DEV_MAP_FLAG_WRITE_COMBINE)) {
- mtrr.base = map->base;
- mtrr.len = map->size;
- mtrr.flags = MTRR_VALID;
-
+ m.base = map->base;
+ m.flags = MTRR_VALID | MTRR_PRIVATE;
+ m.len = map->size;
+ m.owner = getpid();
if (map->flags & PCI_DEV_MAP_FLAG_CACHABLE)
- mtrr.type = MTRR_TYPE_WB;
+ m.type = MTRR_TYPE_WB;
if (map->flags & PCI_DEV_MAP_FLAG_WRITE_COMBINE)
- mtrr.type = MTRR_TYPE_WC;
-#ifdef __i386__
- error = i386_set_mtrr(&mtrr, &nmtrr);
-#endif
-#ifdef __amd64__
- error = x86_64_set_mtrr(&mtrr, &nmtrr);
-#endif
- if (error) {
- close(fd);
- return errno;
+ m.type = MTRR_TYPE_WC;
+
+ if ((netbsd_set_mtrr(&m, &n)) == -1) {
+ fprintf(stderr, "mtrr set failed: %s\n",
+ strerror(errno));
}
}
+#endif
- close(fd);
-
- return 0;
+ return ret;
}
static int
pci_device_netbsd_unmap_range(struct pci_device *dev,
struct pci_device_mapping *map)
{
- struct mtrr mtrr;
- int nmtrr, error;
+#ifdef HAVE_MTRR
+ struct mtrr m;
+ int n = 1;
+
+ memset(&m, 0, sizeof(m));
if ((map->flags & PCI_DEV_MAP_FLAG_CACHABLE) ||
(map->flags & PCI_DEV_MAP_FLAG_WRITE_COMBINE)) {
- mtrr.base = map->base;
- mtrr.len = map->size;
- mtrr.type = MTRR_TYPE_UC;
- mtrr.flags = 0; /* clear/set MTRR */
-#ifdef __i386__
- error = i386_set_mtrr(&mtrr, &nmtrr);
-#endif
-#ifdef __amd64__
- error = x86_64_set_mtrr(&mtrr, &nmtrr);
-#endif
- if (error)
- return errno;
+ m.base = map->base;
+ m.flags = 0;
+ m.len = map->size;
+ m.type = MTRR_TYPE_UC;
+ (void)netbsd_set_mtrr(&m, &n);
}
+#endif
return pci_device_generic_unmap_range(dev, map);
}
@@ -163,25 +193,23 @@ static int
pci_device_netbsd_read(struct pci_device *dev, void *data,
pciaddr_t offset, pciaddr_t size, pciaddr_t *bytes_read)
{
- struct pciio_bdf_cfgreg io;
-
- io.bus = dev->bus;
- io.device = dev->dev;
- io.function = dev->func;
+ u_int reg, rval;
*bytes_read = 0;
while (size > 0) {
- int toread = MIN(size, 4 - (offset & 0x3));
+ size_t toread = MIN(size, 4 - (offset & 0x3));
- io.cfgreg.reg = (offset & ~0x3);
+ reg = (u_int)(offset & ~0x3);
- if (ioctl(pcifd, PCI_IOC_BDF_CFGREAD, &io) == -1)
+ if ((pcibus_conf_read(buses[dev->domain].fd,
+ (unsigned int)dev->bus, (unsigned int)dev->dev,
+ (unsigned int)dev->func, reg, &rval)) == -1)
return errno;
- io.cfgreg.val = htole32(io.cfgreg.val);
- io.cfgreg.val >>= ((offset & 0x3) * 8);
+ rval = htole32(rval);
+ rval >>= ((offset & 0x3) * 8);
- memcpy(data, &io.cfgreg.val, toread);
+ memcpy(data, &rval, toread);
offset += toread;
data = (char *)data + toread;
@@ -196,25 +224,23 @@ static int
pci_device_netbsd_write(struct pci_device *dev, const void *data,
pciaddr_t offset, pciaddr_t size, pciaddr_t *bytes_written)
{
- struct pciio_bdf_cfgreg io;
+ u_int reg, val;
if ((offset % 4) != 0 || (size % 4) != 0)
return EINVAL;
- io.bus = dev->bus;
- io.device = dev->dev;
- io.function = dev->func;
-
*bytes_written = 0;
while (size > 0) {
- io.cfgreg.reg = offset;
- memcpy(&io.cfgreg.val, data, 4);
+ reg = (u_int)offset;
+ memcpy(&val, data, 4);
- if (ioctl(pcifd, PCI_IOC_BDF_CFGWRITE, &io) == -1)
+ if ((pcibus_conf_write(buses[dev->domain].fd,
+ (unsigned int)dev->bus, (unsigned int)dev->dev,
+ (unsigned int)dev->func, reg, val)) == -1)
return errno;
offset += 4;
- data = (char *)data + 4;
+ data = (const char *)data + 4;
size -= 4;
*bytes_written += 4;
}
@@ -222,10 +248,51 @@ pci_device_netbsd_write(struct pci_device *dev, const void *data,
return 0;
}
+static int
+pci_device_netbsd_boot_vga(struct pci_device *dev)
+{
+ int ret;
+ struct wsdisplayio_bus_id busid;
+ int fd;
+
+ fd = open("/dev/ttyE0", O_RDONLY);
+ if (fd == -1) {
+ fprintf(stderr, "failed to open /dev/ttyE0: %s\n",
+ strerror(errno));
+ return 0;
+ }
+
+ ret = ioctl(fd, WSDISPLAYIO_GET_BUSID, &busid);
+ close(fd);
+ if (ret == -1) {
+ fprintf(stderr, "ioctl WSDISPLAYIO_GET_BUSID failed: %s\n",
+ strerror(errno));
+ return 0;
+ }
+
+ if (busid.bus_type != WSDISPLAYIO_BUS_PCI)
+ return 0;
+
+ if (busid.ubus.pci.domain != dev->domain)
+ return 0;
+ if (busid.ubus.pci.bus != dev->bus)
+ return 0;
+ if (busid.ubus.pci.device != dev->dev)
+ return 0;
+ if (busid.ubus.pci.function != dev->func)
+ return 0;
+
+ return 1;
+}
+
static void
pci_system_netbsd_destroy(void)
{
- close(pcifd);
+ int i;
+
+ for (i = 0; i < nbuses; i++) {
+ close(buses[i].fd);
+ }
free(pci_sys);
pci_sys = NULL;
}
@@ -233,17 +300,34 @@ pci_system_netbsd_destroy(void)
static int
pci_device_netbsd_probe(struct pci_device *device)
{
- struct pci_device_private *priv = (struct pci_device_private *)device;
+ struct pci_device_private *priv =
+ (struct pci_device_private *)(void *)device;
struct pci_mem_region *region;
uint64_t reg64, size64;
uint32_t bar, reg, size;
- int bus, dev, func, err;
+ int bus, dev, func, err, domain;
+ domain = device->domain;
bus = device->bus;
dev = device->dev;
func = device->func;
- err = pci_read(bus, dev, func, PCI_BHLC_REG, ®);
+ /* Enable the device if necessary */
+ err = pci_read(domain, bus, dev, func, PCI_COMMAND_STATUS_REG, ®);
+ if (err)
+ return err;
+ if ((reg & (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE)) !=
+ (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE)) {
+ reg |= PCI_COMMAND_IO_ENABLE |
+ PCI_COMMAND_MEM_ENABLE |
+ PCI_COMMAND_MASTER_ENABLE;
+ err = pci_write(domain, bus, dev, func, PCI_COMMAND_STATUS_REG,
+ reg);
+ if (err)
+ return err;
+ }
+
+ err = pci_read(domain, bus, dev, func, PCI_BHLC_REG, ®);
if (err)
return err;
@@ -254,16 +338,16 @@ pci_device_netbsd_probe(struct pci_device *device)
region = device->regions;
for (bar = PCI_MAPREG_START; bar < PCI_MAPREG_END;
bar += sizeof(uint32_t), region++) {
- err = pci_read(bus, dev, func, bar, ®);
+ err = pci_read(domain, bus, dev, func, bar, ®);
if (err)
return err;
/* Probe the size of the region. */
- err = pci_write(bus, dev, func, bar, ~0);
+ err = pci_write(domain, bus, dev, func, bar, (unsigned int)~0);
if (err)
return err;
- pci_read(bus, dev, func, bar, &size);
- pci_write(bus, dev, func, bar, reg);
+ pci_read(domain, bus, dev, func, bar, &size);
+ pci_write(domain, bus, dev, func, bar, reg);
if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) {
region->is_IO = 1;
@@ -286,66 +370,185 @@ pci_device_netbsd_probe(struct pci_device *device)
bar += sizeof(uint32_t);
- err = pci_read(bus, dev, func, bar, ®);
+ err = pci_read(domain, bus, dev, func, bar, ®);
if (err)
return err;
reg64 |= (uint64_t)reg << 32;
- err = pci_write(bus, dev, func, bar, ~0);
+ err = pci_write(domain, bus, dev, func, bar,
+ (unsigned int)~0);
if (err)
return err;
- pci_read(bus, dev, func, bar, &size);
- pci_write(bus, dev, func, bar, reg64 >> 32);
+ pci_read(domain, bus, dev, func, bar, &size);
+ pci_write(domain, bus, dev, func, bar,
+ (unsigned int)(reg64 >> 32));
size64 |= (uint64_t)size << 32;
- region->base_addr = PCI_MAPREG_MEM64_ADDR(reg64);
- region->size = PCI_MAPREG_MEM64_SIZE(size64);
+ region->base_addr =
+ (unsigned long)PCI_MAPREG_MEM64_ADDR(reg64);
+ region->size =
+ (unsigned long)PCI_MAPREG_MEM64_SIZE(size64);
region++;
break;
}
}
}
+ /* Probe expansion ROM if present */
+ err = pci_read(domain, bus, dev, func, PCI_MAPREG_ROM, ®);
+ if (err)
+ return err;
+ if (reg != 0) {
+ err = pci_write(domain, bus, dev, func, PCI_MAPREG_ROM,
+ (uint32_t)(~PCI_MAPREG_ROM_ENABLE));
+ if (err)
+ return err;
+ pci_read(domain, bus, dev, func, PCI_MAPREG_ROM, &size);
+ pci_write(domain, bus, dev, func, PCI_MAPREG_ROM, reg);
+ if ((reg & PCI_MAPREG_MEM_ADDR_MASK) != 0) {
+ priv->rom_base = reg & PCI_MAPREG_MEM_ADDR_MASK;
+ device->rom_size = -(size & PCI_MAPREG_MEM_ADDR_MASK);
+ }
+ }
+
return 0;
}
+/**
+ * Read a VGA rom using the 0xc0000 mapping.
+ *
+ * This function should be extended to handle access through PCI resources,
+ * which should be more reliable when available.
+ */
+static int
+pci_device_netbsd_read_rom(struct pci_device *dev, void *buffer)
+{
+ struct pci_device_private *priv = (struct pci_device_private *)(void *)dev;
+ void *bios;
+ pciaddr_t rom_base;
+ size_t rom_size;
+ uint32_t bios_val, command_val;
+ int pci_rom;
+
+ if (((priv->base.device_class >> 16) & 0xff) != PCI_CLASS_DISPLAY ||
+ ((priv->base.device_class >> 8) & 0xff) != PCI_SUBCLASS_DISPLAY_VGA)
+ return ENOSYS;
+
+ if (priv->rom_base == 0) {
+#if defined(__amd64__) || defined(__i386__)
+ /*
+ * We need a way to detect when this isn't the console and reject
+ * this request outright.
+ */
+ rom_base = 0xc0000;
+ rom_size = 0x10000;
+ pci_rom = 0;
+#else
+ return ENOSYS;
+#endif
+ } else {
+ rom_base = priv->rom_base;
+ rom_size = dev->rom_size;
+ pci_rom = 1;
+ if ((pcibus_conf_read(buses[dev->domain].fd, (unsigned int)dev->bus,
+ (unsigned int)dev->dev, (unsigned int)dev->func,
+ PCI_COMMAND_STATUS_REG, &command_val)) == -1)
+ return errno;
+ if ((command_val & PCI_COMMAND_MEM_ENABLE) == 0) {
+ if ((pcibus_conf_write(buses[dev->domain].fd,
+ (unsigned int)dev->bus, (unsigned int)dev->dev,
+ (unsigned int)dev->func, PCI_COMMAND_STATUS_REG,
+ command_val | PCI_COMMAND_MEM_ENABLE)) == -1)
+ return errno;
+ }
+ if ((pcibus_conf_read(buses[dev->domain].fd, (unsigned int)dev->bus,
+ (unsigned int)dev->dev, (unsigned int)dev->func,
+ PCI_MAPREG_ROM, &bios_val)) == -1)
+ return errno;
+ if ((bios_val & PCI_MAPREG_ROM_ENABLE) == 0) {
+ if ((pcibus_conf_write(buses[dev->domain].fd,
+ (unsigned int)dev->bus,
+ (unsigned int)dev->dev, (unsigned int)dev->func,
+ PCI_MAPREG_ROM, bios_val | PCI_MAPREG_ROM_ENABLE)) == -1)
+ return errno;
+ }
+ }
+
+ fprintf(stderr, "Using rom_base = 0x%lx 0x%lx (pci_rom=%d)\n",
+ (long)rom_base, (long)rom_size, pci_rom);
+
+ bios = mmap(NULL, rom_size, PROT_READ, MAP_SHARED, buses[dev->domain].fd,
+ (off_t)rom_base);
+ if (bios == MAP_FAILED) {
+ int serrno = errno;
+ return serrno;
+ }
+
+ memcpy(buffer, bios, rom_size);
+
+ munmap(bios, rom_size);
+
+ if (pci_rom) {
+ if ((command_val & PCI_COMMAND_MEM_ENABLE) == 0) {
+ if ((pcibus_conf_write(buses[dev->domain].fd,
+ (unsigned int)dev->bus,
+ (unsigned int)dev->dev, (unsigned int)dev->func,
+ PCI_COMMAND_STATUS_REG, command_val)) == -1)
+ return errno;
+ }
+ if ((bios_val & PCI_MAPREG_ROM_ENABLE) == 0) {
+ if ((pcibus_conf_write(buses[dev->domain].fd,
+ (unsigned int)dev->bus,
+ (unsigned int)dev->dev, (unsigned int)dev->func,
+ PCI_MAPREG_ROM, bios_val)) == -1)
+ return errno;
+ }
+ }
+
+ return 0;
+}
+
static const struct pci_system_methods netbsd_pci_methods = {
- pci_system_netbsd_destroy,
- NULL,
- NULL,
- pci_device_netbsd_probe,
- pci_device_netbsd_map_range,
- pci_device_netbsd_unmap_range,
- pci_device_netbsd_read,
- pci_device_netbsd_write,
- pci_fill_capabilities_generic
+ .destroy = pci_system_netbsd_destroy,
+ .destroy_device = NULL,
+ .read_rom = pci_device_netbsd_read_rom,
+ .probe = pci_device_netbsd_probe,
+ .map_range = pci_device_netbsd_map_range,
+ .unmap_range = pci_device_netbsd_unmap_range,
+ .read = pci_device_netbsd_read,
+ .write = pci_device_netbsd_write,
+ .fill_capabilities = pci_fill_capabilities_generic,
+ .boot_vga = pci_device_netbsd_boot_vga,
};
int
pci_system_netbsd_create(void)
{
struct pci_device_private *device;
- int bus, dev, func, ndevs, nfuncs;
+ int bus, dev, func, ndevs, nfuncs, domain, pcifd;
uint32_t reg;
-
- pcifd = open("/dev/pci0", O_RDWR | O_CLOEXEC);
- if (pcifd == -1)
- return ENXIO;
+ char netbsd_devname[32];
+ struct pciio_businfo businfo;
pci_sys = calloc(1, sizeof(struct pci_system));
- if (pci_sys == NULL) {
- close(pcifd);
- return ENOMEM;
- }
pci_sys->methods = &netbsd_pci_methods;
ndevs = 0;
- for (bus = 0; bus < 256; bus++) {
- for (dev = 0; dev < 32; dev++) {
- nfuncs = pci_nfuncs(bus, dev);
+ nbuses = 0;
+ snprintf(netbsd_devname, 32, "/dev/pci%d", nbuses);
+ pcifd = open(netbsd_devname, O_RDWR | O_CLOEXEC);
+ while (pcifd > 0) {
+ ioctl(pcifd, PCI_IOC_BUSINFO, &businfo);
+ buses[nbuses].fd = pcifd;
+ buses[nbuses].num = bus = businfo.busno;
+ buses[nbuses].maxdevs = businfo.maxdevs;
+ domain = nbuses;
+ nbuses++;
+ for (dev = 0; dev < businfo.maxdevs; dev++) {
+ nfuncs = pci_nfuncs(domain, bus, dev);
for (func = 0; func < nfuncs; func++) {
- if (pci_read(bus, dev, func, PCI_ID_REG,
+ if (pci_read(domain, bus, dev, func, PCI_ID_REG,
®) != 0)
continue;
if (PCI_VENDOR(reg) == PCI_VENDOR_INVALID ||
@@ -355,37 +558,43 @@ pci_system_netbsd_create(void)
ndevs++;
}
}
+ snprintf(netbsd_devname, 32, "/dev/pci%d", nbuses);
+ pcifd = open(netbsd_devname, O_RDWR);
}
pci_sys->num_devices = ndevs;
pci_sys->devices = calloc(ndevs, sizeof(struct pci_device_private));
if (pci_sys->devices == NULL) {
+ int i;
+
+ for (i = 0; i < nbuses; i++)
+ close(buses[i].fd);
free(pci_sys);
- close(pcifd);
return ENOMEM;
}
device = pci_sys->devices;
- for (bus = 0; bus < 256; bus++) {
- for (dev = 0; dev < 32; dev++) {
- nfuncs = pci_nfuncs(bus, dev);
+ for (domain = 0; domain < nbuses; domain++) {
+ bus = buses[domain].num;
+ for (dev = 0; dev < buses[domain].maxdevs; dev++) {
+ nfuncs = pci_nfuncs(domain, bus, dev);
for (func = 0; func < nfuncs; func++) {
- if (pci_read(bus, dev, func, PCI_ID_REG,
- ®) != 0)
+ if (pci_read(domain, bus, dev, func,
+ PCI_ID_REG, ®) != 0)
continue;
if (PCI_VENDOR(reg) == PCI_VENDOR_INVALID ||
PCI_VENDOR(reg) == 0)
continue;
- device->base.domain = 0;
+ device->base.domain = domain;
device->base.bus = bus;
device->base.dev = dev;
device->base.func = func;
device->base.vendor_id = PCI_VENDOR(reg);
device->base.device_id = PCI_PRODUCT(reg);
- if (pci_read(bus, dev, func, PCI_CLASS_REG,
- ®) != 0)
+ if (pci_read(domain, bus, dev, func,
+ PCI_CLASS_REG, ®) != 0)
continue;
device->base.device_class =
@@ -393,8 +602,8 @@ pci_system_netbsd_create(void)
PCI_SUBCLASS(reg) << 8;
device->base.revision = PCI_REVISION(reg);
- if (pci_read(bus, dev, func, PCI_SUBSYS_ID_REG,
- ®) != 0)
+ if (pci_read(domain, bus, dev, func,
+ PCI_SUBSYS_ID_REG, ®) != 0)
continue;
device->base.subvendor_id = PCI_VENDOR(reg);
--
1.8.2.3
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