diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 4 | ||||
| -rw-r--r-- | src/common_init.c | 2 | ||||
| -rw-r--r-- | src/common_interface.c | 2 | ||||
| -rw-r--r-- | src/netbsd_pci.c | 409 | ||||
| -rw-r--r-- | src/pciaccess_private.h | 1 |
5 files changed, 417 insertions, 1 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 8c53de5..3e50406 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -33,6 +33,10 @@ if FREEBSD OS_SUPPORT = freebsd_pci.c endif +if NETBSD +OS_SUPPORT = netbsd_pci.c +endif + if OPENBSD OS_SUPPORT = openbsd_pci.c endif diff --git a/src/common_init.c b/src/common_init.c index 0b799ff..6b83d97 100644 --- a/src/common_init.c +++ b/src/common_init.c @@ -56,6 +56,8 @@ pci_system_init( void ) err = pci_system_linux_sysfs_create(); #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) err = pci_system_freebsd_create(); +#elif defined(__NetBSD__) + err = pci_system_netbsd_create(); #elif defined(__OpenBSD__) err = pci_system_openbsd_create(); #elif defined(__sun) diff --git a/src/common_interface.c b/src/common_interface.c index 663ab44..649ca47 100644 --- a/src/common_interface.c +++ b/src/common_interface.c @@ -64,7 +64,7 @@ #define HTOLE_16(x) htole16(x) #define HTOLE_32(x) htole32(x) -#if defined(__FreeBSD__) || defined(__DragonFly__) +#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) #define LETOH_16(x) le16toh(x) #define LETOH_32(x) le32toh(x) #else diff --git a/src/netbsd_pci.c b/src/netbsd_pci.c new file mode 100644 index 0000000..8b39edf --- /dev/null +++ b/src/netbsd_pci.c @@ -0,0 +1,409 @@ +/* + * Copyright (c) 2008 Juan Romero Pardines + * Copyright (c) 2008 Mark Kettenis + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/param.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/types.h> + +#include <machine/sysarch.h> +#include <machine/mtrr.h> + +#include <dev/pci/pciio.h> +#include <dev/pci/pcireg.h> +#include <dev/pci/pcidevs.h> + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + + +#include "pciaccess.h" +#include "pciaccess_private.h" + +static int pcifd; + +static int +pci_read(int bus, int dev, int func, uint32_t reg, uint32_t *val) +{ + struct pciio_bdf_cfgreg io; + int err; + + bzero(&io, sizeof(io)); + io.bus = bus; + io.device = dev; + io.function = func; + io.cfgreg.reg = reg; + + err = ioctl(pcifd, PCI_IOC_BDF_CFGREAD, &io); + if (err) + return (err); + + *val = io.cfgreg.val; + + return 0; +} + +static int +pci_write(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; + + return ioctl(pcifd, PCI_IOC_BDF_CFGWRITE, &io); +} + +static int +pci_nfuncs(int bus, int dev) +{ + uint32_t hdr; + + if (pci_read(bus, dev, 0, PCI_BHLC_REG, &hdr) != 0) + return -1; + + return (PCI_HDRTYPE_MULTIFN(hdr) ? 8 : 1); +} + +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; + + if ((fd = open("/dev/mem", O_RDWR)) == -1) + return errno; + + if (map->flags & PCI_DEV_MAP_FLAG_WRITABLE) + prot |= PROT_WRITE; + + map->memory = mmap(NULL, map->size, prot, MAP_SHARED, + fd, map->base); + if (map->memory == MAP_FAILED) + return errno; + + /* 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; + + if (map->flags & PCI_DEV_MAP_FLAG_CACHABLE) + mtrr.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; + } + } + + close(fd); + + return 0; +} + +static int +pci_device_netbsd_unmap_range(struct pci_device *dev, + struct pci_device_mapping *map) +{ + struct mtrr mtrr; + int nmtrr, error; + + 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; + } + + return pci_device_generic_unmap_range(dev, map); +} + +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; + + *bytes_read = 0; + while (size > 0) { + int toread = MIN(size, 4 - (offset & 0x3)); + + io.cfgreg.reg = (offset & ~0x3); + + if (ioctl(pcifd, PCI_IOC_BDF_CFGREAD, &io) == -1) + return errno; + + io.cfgreg.val = htole32(io.cfgreg.val); + io.cfgreg.val >>= ((offset & 0x3) * 8); + + memcpy(data, &io.cfgreg.val, toread); + + offset += toread; + data = (char *)data + toread; + size -= toread; + *bytes_read += toread; + } + + return 0; +} + +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; + + 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); + + if (ioctl(pcifd, PCI_IOC_BDF_CFGWRITE, &io) == -1) + return errno; + + offset += 4; + data = (char *)data + 4; + size -= 4; + *bytes_written += 4; + } + + return 0; +} + +static void +pci_system_netbsd_destroy(void) +{ + close(pcifd); + free(pci_sys); + pci_sys = NULL; +} + +static int +pci_device_netbsd_probe(struct pci_device *device) +{ + struct pci_device_private *priv = (struct pci_device_private *)device; + struct pci_mem_region *region; + uint64_t reg64, size64; + uint32_t bar, reg, size; + int bus, dev, func, err; + + bus = device->bus; + dev = device->dev; + func = device->func; + + err = pci_read(bus, dev, func, PCI_BHLC_REG, ®); + if (err) + return err; + + priv->header_type = PCI_HDRTYPE_TYPE(reg); + if (priv->header_type != 0) + return 0; + + region = device->regions; + for (bar = PCI_MAPREG_START; bar < PCI_MAPREG_END; + bar += sizeof(uint32_t), region++) { + err = pci_read(bus, dev, func, bar, ®); + if (err) + return err; + + /* Probe the size of the region. */ + err = pci_write(bus, dev, func, bar, ~0); + if (err) + return err; + pci_read(bus, dev, func, bar, &size); + pci_write(bus, dev, func, bar, reg); + + if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { + region->is_IO = 1; + region->base_addr = PCI_MAPREG_IO_ADDR(reg); + region->size = PCI_MAPREG_IO_SIZE(size); + } else { + if (PCI_MAPREG_MEM_PREFETCHABLE(reg)) + region->is_prefetchable = 1; + switch(PCI_MAPREG_MEM_TYPE(reg)) { + case PCI_MAPREG_MEM_TYPE_32BIT: + case PCI_MAPREG_MEM_TYPE_32BIT_1M: + region->base_addr = PCI_MAPREG_MEM_ADDR(reg); + region->size = PCI_MAPREG_MEM_SIZE(size); + break; + case PCI_MAPREG_MEM_TYPE_64BIT: + region->is_64 = 1; + + reg64 = reg; + size64 = size; + + bar += sizeof(uint32_t); + + err = pci_read(bus, dev, func, bar, ®); + if (err) + return err; + reg64 |= (uint64_t)reg << 32; + + err = pci_write(bus, dev, func, bar, ~0); + if (err) + return err; + pci_read(bus, dev, func, bar, &size); + pci_write(bus, dev, func, bar, reg64 >> 32); + size64 |= (uint64_t)size << 32; + + region->base_addr = PCI_MAPREG_MEM64_ADDR(reg64); + region->size = PCI_MAPREG_MEM64_SIZE(size64); + region++; + break; + } + } + } + + 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 +}; + +int +pci_system_netbsd_create(void) +{ + struct pci_device_private *device; + int bus, dev, func, ndevs, nfuncs; + uint32_t reg; + + pcifd = open("/dev/pci0", O_RDWR); + if (pcifd == -1) + return ENXIO; + + 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); + for (func = 0; func < nfuncs; func++) { + if (pci_read(bus, dev, func, PCI_ID_REG, + ®) != 0) + continue; + if (PCI_VENDOR(reg) == PCI_VENDOR_INVALID || + PCI_VENDOR(reg) == 0) + continue; + + ndevs++; + } + } + } + + pci_sys->num_devices = ndevs; + pci_sys->devices = calloc(ndevs, sizeof(struct pci_device_private)); + if (pci_sys->devices == NULL) { + 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 (func = 0; func < nfuncs; func++) { + if (pci_read(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.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) + continue; + + device->base.device_class = + PCI_INTERFACE(reg) | PCI_CLASS(reg) << 16 | + PCI_SUBCLASS(reg) << 8; + device->base.revision = PCI_REVISION(reg); + + if (pci_read(bus, dev, func, PCI_SUBSYS_ID_REG, + ®) != 0) + continue; + + device->base.subvendor_id = PCI_VENDOR(reg); + device->base.subdevice_id = PCI_PRODUCT(reg); + + device++; + } + } + } + + return 0; +} diff --git a/src/pciaccess_private.h b/src/pciaccess_private.h index 6048af1..bff6903 100644 --- a/src/pciaccess_private.h +++ b/src/pciaccess_private.h @@ -136,6 +136,7 @@ extern struct pci_system * pci_sys; extern int pci_system_linux_sysfs_create( void ); extern int pci_system_freebsd_create( void ); +extern int pci_system_netbsd_create( void ); extern int pci_system_openbsd_create( void ); extern void pci_system_openbsd_init_dev_mem( int ); extern int pci_system_solx_devfs_create( void ); |