diff options
Diffstat (limited to 'drivers/rapidio/devices/tsi721.c')
| -rw-r--r-- | drivers/rapidio/devices/tsi721.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c index 5225930a10cd..691b1ab1a3d0 100644 --- a/drivers/rapidio/devices/tsi721.c +++ b/drivers/rapidio/devices/tsi721.c @@ -851,14 +851,12 @@ static int tsi721_doorbell_init(struct tsi721_device *priv) INIT_WORK(&priv->idb_work, tsi721_db_dpc); /* Allocate buffer for inbound doorbells queue */ - priv->idb_base = dma_alloc_coherent(&priv->pdev->dev, + priv->idb_base = dma_zalloc_coherent(&priv->pdev->dev, IDB_QSIZE * TSI721_IDB_ENTRY_SIZE, &priv->idb_dma, GFP_KERNEL); if (!priv->idb_base) return -ENOMEM; - memset(priv->idb_base, 0, IDB_QSIZE * TSI721_IDB_ENTRY_SIZE); - dev_dbg(&priv->pdev->dev, "Allocated IDB buffer @ %p (phys = %llx)\n", priv->idb_base, (unsigned long long)priv->idb_dma); @@ -904,7 +902,7 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum) */ /* Allocate space for DMA descriptors */ - bd_ptr = dma_alloc_coherent(&priv->pdev->dev, + bd_ptr = dma_zalloc_coherent(&priv->pdev->dev, bd_num * sizeof(struct tsi721_dma_desc), &bd_phys, GFP_KERNEL); if (!bd_ptr) @@ -913,8 +911,6 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum) priv->bdma[chnum].bd_phys = bd_phys; priv->bdma[chnum].bd_base = bd_ptr; - memset(bd_ptr, 0, bd_num * sizeof(struct tsi721_dma_desc)); - dev_dbg(&priv->pdev->dev, "DMA descriptors @ %p (phys = %llx)\n", bd_ptr, (unsigned long long)bd_phys); @@ -922,7 +918,7 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum) sts_size = (bd_num >= TSI721_DMA_MINSTSSZ) ? bd_num : TSI721_DMA_MINSTSSZ; sts_size = roundup_pow_of_two(sts_size); - sts_ptr = dma_alloc_coherent(&priv->pdev->dev, + sts_ptr = dma_zalloc_coherent(&priv->pdev->dev, sts_size * sizeof(struct tsi721_dma_sts), &sts_phys, GFP_KERNEL); if (!sts_ptr) { @@ -938,8 +934,6 @@ static int tsi721_bdma_ch_init(struct tsi721_device *priv, int chnum) priv->bdma[chnum].sts_base = sts_ptr; priv->bdma[chnum].sts_size = sts_size; - memset(sts_ptr, 0, sts_size); - dev_dbg(&priv->pdev->dev, "desc status FIFO @ %p (phys = %llx) size=0x%x\n", sts_ptr, (unsigned long long)sts_phys, sts_size); @@ -1400,7 +1394,7 @@ static int tsi721_open_outb_mbox(struct rio_mport *mport, void *dev_id, /* Outbound message descriptor status FIFO allocation */ priv->omsg_ring[mbox].sts_size = roundup_pow_of_two(entries + 1); - priv->omsg_ring[mbox].sts_base = dma_alloc_coherent(&priv->pdev->dev, + priv->omsg_ring[mbox].sts_base = dma_zalloc_coherent(&priv->pdev->dev, priv->omsg_ring[mbox].sts_size * sizeof(struct tsi721_dma_sts), &priv->omsg_ring[mbox].sts_phys, GFP_KERNEL); @@ -1412,9 +1406,6 @@ static int tsi721_open_outb_mbox(struct rio_mport *mport, void *dev_id, goto out_desc; } - memset(priv->omsg_ring[mbox].sts_base, 0, - entries * sizeof(struct tsi721_dma_sts)); - /* * Configure Outbound Messaging Engine */ @@ -2116,8 +2107,8 @@ static int __devinit tsi721_setup_mport(struct tsi721_device *priv) INIT_LIST_HEAD(&mport->dbells); rio_init_dbell_res(&mport->riores[RIO_DOORBELL_RESOURCE], 0, 0xffff); - rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 0); - rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 0); + rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 3); + rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 3); strcpy(mport->name, "Tsi721 mport"); /* Hook up interrupt handler */ @@ -2163,7 +2154,7 @@ static int __devinit tsi721_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct tsi721_device *priv; - int i; + int i, cap; int err; u32 regval; @@ -2271,10 +2262,20 @@ static int __devinit tsi721_probe(struct pci_dev *pdev, dev_info(&pdev->dev, "Unable to set consistent DMA mask\n"); } - /* Clear "no snoop" and "relaxed ordering" bits. */ - pci_read_config_dword(pdev, 0x40 + PCI_EXP_DEVCTL, ®val); - regval &= ~(PCI_EXP_DEVCTL_RELAX_EN | PCI_EXP_DEVCTL_NOSNOOP_EN); - pci_write_config_dword(pdev, 0x40 + PCI_EXP_DEVCTL, regval); + cap = pci_pcie_cap(pdev); + BUG_ON(cap == 0); + + /* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */ + pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL, ®val); + regval &= ~(PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN | + PCI_EXP_DEVCTL_NOSNOOP_EN); + regval |= 0x2 << MAX_READ_REQUEST_SZ_SHIFT; + pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL, regval); + + /* Adjust PCIe completion timeout. */ + pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL2, ®val); + regval &= ~(0x0f); + pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL2, regval | 0x2); /* * FIXUP: correct offsets of MSI-X tables in the MSI-X Capability Block |