diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2013-03-25 14:37:31 -0700 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-04-15 09:51:19 +0530 |
| commit | 570727b5520878d1263e33f118463d77d7fd92d1 (patch) | |
| tree | b0ddc90665c2e60a8dec07bbc05eb2d58a4c9c7d /drivers/dma/ioat/dma_v3.c | |
| parent | 8d30662aac256eb61bc2f1d9cf1191825ef96328 (diff) | |
ioatdma: Adding Haswell devid for ioatdma
Adding Haswell PCI device IDs for ioatdma and simplify the detection of
certain Xeon CPUs that has alignment bugs so that modifications can be
changed at a single place going forward.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dan Williams <djbw@fb.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/ioat/dma_v3.c')
| -rw-r--r-- | drivers/dma/ioat/dma_v3.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index a1dcfb2670f..ab5655eb060 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -1260,6 +1260,32 @@ static bool is_ivb_ioat(struct pci_dev *pdev) } +static bool is_hsw_ioat(struct pci_dev *pdev) +{ + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_IOAT_HSW0: + case PCI_DEVICE_ID_INTEL_IOAT_HSW1: + case PCI_DEVICE_ID_INTEL_IOAT_HSW2: + case PCI_DEVICE_ID_INTEL_IOAT_HSW3: + case PCI_DEVICE_ID_INTEL_IOAT_HSW4: + case PCI_DEVICE_ID_INTEL_IOAT_HSW5: + case PCI_DEVICE_ID_INTEL_IOAT_HSW6: + case PCI_DEVICE_ID_INTEL_IOAT_HSW7: + case PCI_DEVICE_ID_INTEL_IOAT_HSW8: + case PCI_DEVICE_ID_INTEL_IOAT_HSW9: + return true; + default: + return false; + } + +} + +static bool is_xeon_cb32(struct pci_dev *pdev) +{ + return is_jf_ioat(pdev) || is_snb_ioat(pdev) || is_ivb_ioat(pdev) || + is_hsw_ioat(pdev); +} + int ioat3_dma_probe(struct ioatdma_device *device, int dca) { struct pci_dev *pdev = device->pdev; @@ -1280,7 +1306,7 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca) dma->device_alloc_chan_resources = ioat2_alloc_chan_resources; dma->device_free_chan_resources = ioat2_free_chan_resources; - if (is_jf_ioat(pdev) || is_snb_ioat(pdev) || is_ivb_ioat(pdev)) + if (is_xeon_cb32(pdev)) dma->copy_align = 6; dma_cap_set(DMA_INTERRUPT, dma->cap_mask); |