int _kc_pci_set_dma_mask(struct pci_dev *dev, dma_addr_t mask) { if (!pci_dma_supported(dev, mask)) return -EIO; dev->dma_mask = mask; return 0; }
int dma_supported(struct device *dev, u64 mask) { if (dev->bus == &pci_bus_type) return pci_dma_supported(to_pci_dev(dev), mask); if (dev->bus == &vio_bus_type) return vio_dma_supported(to_vio_dev(dev), mask); BUG(); return 0; }
int pscnv_mem_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; int ret; int dma_bits = 32; #ifdef __linux__ if (dev_priv->card_type >= NV_50 && pci_dma_supported(dev->pdev, DMA_BIT_MASK(40))) dma_bits = 40; ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(dma_bits)); if (ret) { NV_ERROR(dev, "Error setting DMA mask: %d\n", ret); return ret; } #else if (dev_priv->card_type >= NV_50) dma_bits = 40; #endif dev_priv->dma_mask = DMA_BIT_MASK(dma_bits); spin_lock_init(&dev_priv->pramin_lock); mutex_init(&dev_priv->vram_mutex); switch (dev_priv->card_type) { case NV_50: ret = nv50_vram_init(dev); break; case NV_D0: case NV_C0: ret = nvc0_vram_init(dev); break; default: NV_ERROR(dev, "No VRAM allocator for NV%02x!\n", dev_priv->chipset); ret = -ENOSYS; } if (ret) return ret; dev_priv->fb_mtrr = drm_mtrr_add(drm_get_resource_start(dev, 1), drm_get_resource_len(dev, 1), DRM_MTRR_WC); return 0; }
static int tw68_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { struct tw68_dev *dev; int vidnr = -1; int err; dev = devm_kzalloc(&pci_dev->dev, sizeof(*dev), GFP_KERNEL); if (NULL == dev) return -ENOMEM; dev->instance = v4l2_device_set_name(&dev->v4l2_dev, "tw68", &tw68_instance); err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev); if (err) return err; /* pci init */ dev->pci = pci_dev; if (pci_enable_device(pci_dev)) { err = -EIO; goto fail1; } dev->name = dev->v4l2_dev.name; if (UNSET != latency) { pr_info("%s: setting pci latency timer to %d\n", dev->name, latency); pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); } /* print pci info */ pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev); pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat); pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n", dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq, dev->pci_lat, (u64)pci_resource_start(pci_dev, 0)); pci_set_master(pci_dev); if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) { pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name); err = -EIO; goto fail1; } switch (pci_id->device) { case PCI_DEVICE_ID_6800: /* TW6800 */ dev->vdecoder = TW6800; dev->board_virqmask = TW68_VID_INTS; break; case PCI_DEVICE_ID_6801: /* Video decoder for TW6802 */ dev->vdecoder = TW6801; dev->board_virqmask = TW68_VID_INTS | TW68_VID_INTSX; break; case PCI_DEVICE_ID_6804: /* Video decoder for TW6804 */ dev->vdecoder = TW6804; dev->board_virqmask = TW68_VID_INTS | TW68_VID_INTSX; break; default: dev->vdecoder = TWXXXX; /* To be announced */ dev->board_virqmask = TW68_VID_INTS | TW68_VID_INTSX; break; } /* get mmio */ if (!request_mem_region(pci_resource_start(pci_dev, 0), pci_resource_len(pci_dev, 0), dev->name)) { err = -EBUSY; pr_err("%s: can't get MMIO memory @ 0x%llx\n", dev->name, (unsigned long long)pci_resource_start(pci_dev, 0)); goto fail1; } dev->lmmio = ioremap(pci_resource_start(pci_dev, 0), pci_resource_len(pci_dev, 0)); dev->bmmio = (__u8 __iomem *)dev->lmmio; if (NULL == dev->lmmio) { err = -EIO; pr_err("%s: can't ioremap() MMIO memory\n", dev->name); goto fail2; } /* initialize hardware #1 */ /* Then do any initialisation wanted before interrupts are on */ tw68_hw_init1(dev); dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev); if (IS_ERR(dev->alloc_ctx)) { err = PTR_ERR(dev->alloc_ctx); goto fail3; } /* get irq */ err = devm_request_irq(&pci_dev->dev, pci_dev->irq, tw68_irq, IRQF_SHARED, dev->name, dev); if (err < 0) { pr_err("%s: can't get IRQ %d\n", dev->name, pci_dev->irq); goto fail4; } /* * Now do remainder of initialisation, first for * things unique for this card, then for general board */ if (dev->instance < TW68_MAXBOARDS) vidnr = video_nr[dev->instance]; /* initialise video function first */ err = tw68_video_init2(dev, vidnr); if (err < 0) { pr_err("%s: can't register video device\n", dev->name); goto fail5; } tw_setl(TW68_INTMASK, dev->pci_irqmask); pr_info("%s: registered device %s\n", dev->name, video_device_node_name(&dev->vdev)); return 0; fail5: video_unregister_device(&dev->vdev); fail4: vb2_dma_sg_cleanup_ctx(dev->alloc_ctx); fail3: iounmap(dev->lmmio); fail2: release_mem_region(pci_resource_start(pci_dev, 0), pci_resource_len(pci_dev, 0)); fail1: v4l2_device_unregister(&dev->v4l2_dev); return err; }
// chip-specific constructor // (see "Management of Cards and Components") static int __devinit snd_vortex_create(snd_card_t * card, struct pci_dev *pci, vortex_t ** rchip) { vortex_t *chip; int err; static snd_device_ops_t ops = { .dev_free = snd_vortex_dev_free, }; *rchip = NULL; // check PCI availability (DMA). if ((err = pci_enable_device(pci)) < 0) return err; if (!pci_dma_supported(pci, VORTEX_DMA_MASK)) { printk(KERN_ERR "error to set DMA mask\n"); return -ENXIO; } pci_set_dma_mask(pci, VORTEX_DMA_MASK); chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); if (chip == NULL) return -ENOMEM; chip->card = card; // initialize the stuff chip->pci_dev = pci; chip->io = pci_resource_start(pci, 0); chip->vendor = pci->vendor; chip->device = pci->device; chip->card = card; chip->irq = -1; // (1) PCI resource allocation // Get MMIO area // if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0) goto regions_out; chip->mmio = ioremap_nocache(pci_resource_start(pci, 0), pci_resource_len(pci, 0)); if (!chip->mmio) { printk(KERN_ERR "MMIO area remap failed.\n"); err = -ENOMEM; goto ioremap_out; } /* Init audio core. * This must be done before we do request_irq otherwise we can get spurious * interupts that we do not handle properly and make a mess of things */ if ((err = vortex_core_init(chip)) != 0) { printk(KERN_ERR "hw core init failed\n"); goto core_out; } if ((err = request_irq(pci->irq, vortex_interrupt, SA_INTERRUPT | SA_SHIRQ, CARD_NAME_SHORT, chip)) != 0) { printk(KERN_ERR "cannot grab irq\n"); goto irq_out; } chip->irq = pci->irq; pci_set_master(pci); // End of PCI setup. // Register alsa root device. if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { goto alloc_out; } *rchip = chip; return 0; alloc_out: synchronize_irq(chip->irq); free_irq(chip->irq, chip); irq_out: vortex_core_shutdown(chip); core_out: iounmap(chip->mmio); ioremap_out: pci_release_regions(chip->pci_dev); regions_out: pci_disable_device(chip->pci_dev); //FIXME: this not the right place to unregister the gameport vortex_gameport_unregister(chip); return err; }
static int __devinit w840_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *dev; struct netdev_private *np; static int find_cnt; int chip_idx = ent->driver_data; int irq = pdev->irq; int i, option = find_cnt < MAX_UNITS ? options[find_cnt] : 0; long ioaddr; if (pci_enable_device(pdev)) return -EIO; pci_set_master(pdev); if(!pci_dma_supported(pdev,0xFFFFffff)) { printk(KERN_WARNING "Winbond-840: Device %s disabled due to DMA limitations.\n", pdev->name); return -EIO; } dev = init_etherdev(NULL, sizeof(*np)); if (!dev) return -ENOMEM; SET_MODULE_OWNER(dev); #ifdef USE_IO_OPS ioaddr = pci_resource_start(pdev, 0); if (!request_region(ioaddr, pci_id_tbl[chip_idx].io_size, dev->name)) goto err_out_netdev; #else ioaddr = pci_resource_start(pdev, 1); if (!request_mem_region(ioaddr, pci_id_tbl[chip_idx].io_size, dev->name)) goto err_out_netdev; ioaddr = (long) ioremap (ioaddr, pci_id_tbl[chip_idx].io_size); if (!ioaddr) goto err_out_iomem; #endif printk(KERN_INFO "%s: %s at 0x%lx, ", dev->name, pci_id_tbl[chip_idx].name, ioaddr); /* Warning: broken for big-endian machines. */ for (i = 0; i < 3; i++) ((u16 *)dev->dev_addr)[i] = le16_to_cpu(eeprom_read(ioaddr, i)); for (i = 0; i < 5; i++) printk("%2.2x:", dev->dev_addr[i]); printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq); /* Reset the chip to erase previous misconfiguration. No hold time required! */ writel(0x00000001, ioaddr + PCIBusCfg); dev->base_addr = ioaddr; dev->irq = irq; np = dev->priv; np->chip_id = chip_idx; np->drv_flags = pci_id_tbl[chip_idx].drv_flags; np->pdev = pdev; spin_lock_init(&np->lock); pdev->driver_data = dev; if (dev->mem_start) option = dev->mem_start; /* The lower four bits are the media type. */ if (option > 0) { if (option & 0x200) np->full_duplex = 1; np->default_port = option & 15; if (np->default_port) np->medialock = 1; } if (find_cnt < MAX_UNITS && full_duplex[find_cnt] > 0) np->full_duplex = 1; if (np->full_duplex) np->duplex_lock = 1; /* The chip-specific entries in the device structure. */ dev->open = &netdev_open; dev->hard_start_xmit = &start_tx; dev->stop = &netdev_close; dev->get_stats = &get_stats; dev->set_multicast_list = &set_rx_mode; dev->do_ioctl = &mii_ioctl; dev->tx_timeout = &tx_timeout; dev->watchdog_timeo = TX_TIMEOUT; if (np->drv_flags & CanHaveMII) { int phy, phy_idx = 0; for (phy = 1; phy < 32 && phy_idx < 4; phy++) { int mii_status = mdio_read(dev, phy, 1); if (mii_status != 0xffff && mii_status != 0x0000) { np->phys[phy_idx++] = phy; np->advertising = mdio_read(dev, phy, 4); printk(KERN_INFO "%s: MII PHY found at address %d, status " "0x%4.4x advertising %4.4x.\n", dev->name, phy, mii_status, np->advertising); } } np->mii_cnt = phy_idx; if (phy_idx == 0) { printk(KERN_WARNING "%s: MII PHY not found -- this device may " "not operate correctly.\n", dev->name); } } find_cnt++; return 0; #ifndef USE_IO_OPS err_out_iomem: release_mem_region(pci_resource_start(pdev, 1), pci_id_tbl[chip_idx].io_size); #endif err_out_netdev: unregister_netdev (dev); kfree (dev); return -ENODEV; }
/* Driver initialization routine */ static int __devinit emu10k1_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { struct emu10k1_card *card; if ((card = kmalloc(sizeof(struct emu10k1_card), GFP_KERNEL)) == NULL) { printk(KERN_ERR "emu10k1: out of memory\n"); return -ENOMEM; } memset(card, 0, sizeof(struct emu10k1_card)); #if LINUX_VERSION_CODE > 0x020320 if (!pci_dma_supported(pci_dev, EMU10K1_DMA_MASK)) { printk(KERN_ERR "emu10k1: architecture does not support 32bit PCI busmaster DMA\n"); kfree(card); return -ENODEV; } if (pci_enable_device(pci_dev)) { printk(KERN_ERR "emu10k1: couldn't enable device\n"); kfree(card); return -ENODEV; } pci_set_master(pci_dev); card->iobase = pci_dev->resource[0].start; if (request_region(card->iobase, EMU10K1_EXTENT, card_names[pci_id->driver_data]) == NULL) { printk(KERN_ERR "emu10k1: IO space in use\n"); kfree(card); return -ENODEV; } pci_dev->driver_data = card; pci_dev->dma_mask = EMU10K1_DMA_MASK; #else pci_set_master(pci_dev); card->iobase = pci_dev->base_address[0] & PCI_BASE_ADDRESS_IO_MASK; if (check_region(card->iobase, EMU10K1_EXTENT)) { printk(KERN_ERR "emu10k1: IO space in use\n"); kfree(card); return -ENODEV; } request_region(card->iobase, EMU10K1_EXTENT, card_names[pci_id->driver_data]); #endif card->irq = pci_dev->irq; card->pci_dev = pci_dev; /* Reserve IRQ Line */ if (request_irq(card->irq, emu10k1_interrupt, SA_SHIRQ, card_names[pci_id->driver_data], card)) { printk(KERN_ERR "emu10k1: IRQ in use\n"); goto err_irq; } pci_read_config_byte(pci_dev, PCI_REVISION_ID, &card->chiprev); printk(KERN_INFO "emu10k1: %s rev %d found at IO 0x%04lx, IRQ %d\n", card_names[pci_id->driver_data], card->chiprev, card->iobase, card->irq); spin_lock_init(&card->lock); card->mixeraddx = card->iobase + AC97DATA; init_MUTEX(&card->open_sem); card->open_mode = 0; init_waitqueue_head(&card->open_wait); /* Register devices */ if ((card->audio1_num = register_sound_dsp(&emu10k1_audio_fops, -1)) < 0) { printk(KERN_ERR "emu10k1: cannot register first audio device!\n"); goto err_dev0; } if ((card->audio2_num = register_sound_dsp(&emu10k1_audio_fops, -1)) < 0) { printk(KERN_ERR "emu10k1: cannot register second audio device!\n"); goto err_dev1; } if ((card->mixer_num = register_sound_mixer(&emu10k1_mixer_fops, -1)) < 0) { printk(KERN_ERR "emu10k1: cannot register mixer device!\n"); goto err_dev2; } if ((card->midi_num = register_sound_midi(&emu10k1_midi_fops, -1)) < 0) { printk(KERN_ERR "emu10k1: cannot register midi device!\n"); goto err_dev3; } if (emu10k1_init(card) != CTSTATUS_SUCCESS) { printk(KERN_ERR "emu10k1: cannot initialize device!\n"); goto err_emu10k1_init; } if (audio_init(card) != CTSTATUS_SUCCESS) { printk(KERN_ERR "emu10k1: cannot initialize audio!\n"); goto err_audio_init; } if (midi_init(card) != CTSTATUS_SUCCESS) { printk(KERN_ERR "emu10k1: cannot initialize midi!\n"); goto err_midi_init; } mixer_init(card); DPD(2, "Hardware initialized. TRAM allocated: %u bytes\n", (unsigned int) card->tmemsize); list_add(&card->list, &emu10k1_devs); return 0; err_midi_init: audio_exit(card); err_audio_init: emu10k1_exit(card); err_emu10k1_init: unregister_sound_midi(card->midi_num); err_dev3: unregister_sound_mixer(card->mixer_num); err_dev2: unregister_sound_dsp(card->audio2_num); err_dev1: unregister_sound_dsp(card->audio1_num); err_dev0: free_irq(card->irq, card); err_irq: release_region(card->iobase, EMU10K1_EXTENT); kfree(card); return -ENODEV; }