Hans/Bartlomiej, Do you guys have any questions about this patch? Thank you, Suravee On 6/3/2014 12:58 PM, Tejun Heo wrote:
Hans, Bartlomiej, can you guys please review this patch? Thanks. On Fri, May 23, 2014 at 12:35:10PM -0500, suravee.suthikulpanit@xxxxxxx wrote:From: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx> The current platform AHCI drier does not set the dma_mask correctly for 64-bit DMA capable AHCI controller. This patch checks the AHCI capability bit and set the dma_mask and coherent_dma_mask accordingly. Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx> --- drivers/ata/libahci_platform.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index 7cb3a85..85049ef 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -368,6 +368,15 @@ int ahci_platform_init_host(struct platform_device *pdev, ahci_init_controller(host); ahci_print_info(host, "platform"); + if (hpriv->cap & HOST_CAP_64) { + if (!dev->dma_mask) + dev->dma_mask = &dev->coherent_dma_mask; + + rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); + if (rc) + return rc; + } + return ata_host_activate(host, irq, ahci_interrupt, IRQF_SHARED, &ahci_platform_sht); } -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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