From 4007b493ee6e4a52c2b618ab8361847fba5bf116 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Tue, 2 Oct 2007 20:45:27 -0500 Subject: libata: fix for sata_mv >64KB DMA segments Fix bug in sata_mv for cases where the IOMMU layer has merged SG entries to larger than 64KB. They need to be split up before being sent to the driver. Just for simplicity's sake, split up at 64K boundary instead of 64K size, since that's what the common code does anyway. Signed-off-by: Olof Johansson Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 11bf6c7..1a82e22 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1139,15 +1139,27 @@ static unsigned int mv_fill_sg(struct ata_queued_cmd *qc) dma_addr_t addr = sg_dma_address(sg); u32 sg_len = sg_dma_len(sg); - mv_sg->addr = cpu_to_le32(addr & 0xffffffff); - mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16); - mv_sg->flags_size = cpu_to_le32(sg_len & 0xffff); + while (sg_len) { + u32 offset = addr & 0xffff; + u32 len = sg_len; - if (ata_sg_is_last(sg, qc)) - mv_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL); + if ((offset + sg_len > 0x10000)) + len = 0x10000 - offset; + + mv_sg->addr = cpu_to_le32(addr & 0xffffffff); + mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16); + mv_sg->flags_size = cpu_to_le32(len); + + sg_len -= len; + addr += len; + + if (!sg_len && ata_sg_is_last(sg, qc)) + mv_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL); + + mv_sg++; + n_sg++; + } - mv_sg++; - n_sg++; } return n_sg; -- cgit v1.1 From 90925d3050253ff7b4f5d1660071df75f44bd0ff Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 2 Oct 2007 13:53:01 -0700 Subject: Ata: pata_marvell, use ioread* for iomap-ped memory pata_marvell, use ioread* for iomap-ped memory read* on pci_iomapped memory is incorrect, fix it Signed-off-by: Jiri Slaby Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_marvell.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c index ae206f3..b45506f 100644 --- a/drivers/ata/pata_marvell.c +++ b/drivers/ata/pata_marvell.c @@ -44,10 +44,10 @@ static int marvell_pre_reset(struct ata_port *ap, unsigned long deadline) return -ENOMEM; printk("BAR5:"); for(i = 0; i <= 0x0F; i++) - printk("%02X:%02X ", i, readb(barp + i)); + printk("%02X:%02X ", i, ioread8(barp + i)); printk("\n"); - devices = readl(barp + 0x0C); + devices = ioread32(barp + 0x0C); pci_iounmap(pdev, barp); if ((pdev->device == 0x6145) && (ap->port_no == 0) && -- cgit v1.1 From 991bf528f602882580d0918842b125255d246a19 Mon Sep 17 00:00:00 2001 From: Scott Thompson Date: Tue, 2 Oct 2007 13:53:01 -0700 Subject: drivers/ata/pata_ixp4xx_cf.c: ioremap return code check Add missing ioremap return checks. Signed-off-by: Scott Thompson hushmail.com> Acked-by: Tejun Heo Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_ixp4xx_cf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c index 4ca7fd6..5dea358 100644 --- a/drivers/ata/pata_ixp4xx_cf.c +++ b/drivers/ata/pata_ixp4xx_cf.c @@ -189,6 +189,9 @@ static __devinit int ixp4xx_pata_probe(struct platform_device *pdev) data->cs0 = devm_ioremap(&pdev->dev, cs0->start, 0x1000); data->cs1 = devm_ioremap(&pdev->dev, cs1->start, 0x1000); + if (!data->cs0 || !data->cs1) + return -ENOMEM; + irq = platform_get_irq(pdev, 0); if (irq) set_irq_type(irq, IRQT_RISING); -- cgit v1.1