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authorMaciej Sosnowski <maciej.sosnowski@intel.com>2008-07-22 17:30:57 -0700
committerDan Williams <dan.j.williams@intel.com>2008-07-22 17:30:57 -0700
commit7f1b358a236ee9c19657a619ac6f2dcabcaa0924 (patch)
tree04eade38d4f8da94d7051f51875ed500b49b4756 /drivers/dma/ioat.c
parent16a37acaaf4aaa631ba3f83710ed6cdb1a597520 (diff)
downloadop-kernel-dev-7f1b358a236ee9c19657a619ac6f2dcabcaa0924.zip
op-kernel-dev-7f1b358a236ee9c19657a619ac6f2dcabcaa0924.tar.gz
I/OAT: I/OAT version 3.0 support
This patch adds to ioatdma and dca modules support for Intel I/OAT DMA engine ver.3 (aka CB3 device). The main features of I/OAT ver.3 are: * 8 single channel DMA devices (8 channels total) * 8 DCA providers, each can accept 2 requesters * 8-bit TAG values and 32-bit extended APIC IDs Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ioat.c')
-rw-r--r--drivers/dma/ioat.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/dma/ioat.c b/drivers/dma/ioat.c
index 16e0fd8..9b16a3a 100644
--- a/drivers/dma/ioat.c
+++ b/drivers/dma/ioat.c
@@ -47,6 +47,16 @@ static struct pci_device_id ioat_pci_tbl[] = {
/* I/OAT v2 platforms */
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_SNB) },
+
+ /* I/OAT v3 platforms */
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG1) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG2) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG5) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG6) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_TBG7) },
{ 0, }
};
@@ -83,6 +93,11 @@ static int ioat_setup_functionality(struct pci_dev *pdev, void __iomem *iobase)
if (device->dma && ioat_dca_enabled)
device->dca = ioat2_dca_init(pdev, iobase);
break;
+ case IOAT_VER_3_0:
+ device->dma = ioat_dma_probe(pdev, iobase);
+ if (device->dma && ioat_dca_enabled)
+ device->dca = ioat3_dca_init(pdev, iobase);
+ break;
default:
err = -ENODEV;
break;
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