diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2012-12-03 16:08:37 -0700 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-01-07 22:05:13 -0800 |
| commit | 1a363068dcc2269931daef360ed14d2a262f19f7 (patch) | |
| tree | 63893a7519328cd7312ba8d14251f5a9e3ceb605 | |
| parent | 7d283397ade3c9e51de644676a6593e1f724ac00 (diff) | |
| download | op-kernel-dev-1a363068dcc2269931daef360ed14d2a262f19f7.zip op-kernel-dev-1a363068dcc2269931daef360ed14d2a262f19f7.tar.gz | |
ioat: Add alignment workaround for IVB platforms
The PCI IDs for IvyBridge IOAT DMA needs to go into a header file since
dma_v3.c looks them up for certain hardware workarounds. Need to add to the
alignment workaround for IOAT 3.2 since it wasn't fixed in IVB.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <djbw@fb.com>
| -rw-r--r-- | drivers/dma/ioat/dma_v3.c | 22 | ||||
| -rw-r--r-- | drivers/dma/ioat/hw.h | 11 | ||||
| -rw-r--r-- | drivers/dma/ioat/pci.c | 11 |
3 files changed, 32 insertions, 12 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index 6456f7d..9d6f3bb 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -1229,6 +1229,26 @@ static bool is_snb_ioat(struct pci_dev *pdev) } } +static bool is_ivb_ioat(struct pci_dev *pdev) +{ + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_IOAT_IVB0: + case PCI_DEVICE_ID_INTEL_IOAT_IVB1: + case PCI_DEVICE_ID_INTEL_IOAT_IVB2: + case PCI_DEVICE_ID_INTEL_IOAT_IVB3: + case PCI_DEVICE_ID_INTEL_IOAT_IVB4: + case PCI_DEVICE_ID_INTEL_IOAT_IVB5: + case PCI_DEVICE_ID_INTEL_IOAT_IVB6: + case PCI_DEVICE_ID_INTEL_IOAT_IVB7: + case PCI_DEVICE_ID_INTEL_IOAT_IVB8: + case PCI_DEVICE_ID_INTEL_IOAT_IVB9: + return true; + default: + return false; + } + +} + int __devinit ioat3_dma_probe(struct ioatdma_device *device, int dca) { struct pci_dev *pdev = device->pdev; @@ -1249,7 +1269,7 @@ int __devinit 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)) + if (is_jf_ioat(pdev) || is_snb_ioat(pdev) || is_ivb_ioat(pdev)) dma->copy_align = 6; dma_cap_set(DMA_INTERRUPT, dma->cap_mask); diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h index d2ff3fd..7cb74c6 100644 --- a/drivers/dma/ioat/hw.h +++ b/drivers/dma/ioat/hw.h @@ -35,6 +35,17 @@ #define IOAT_VER_3_0 0x30 /* Version 3.0 */ #define IOAT_VER_3_2 0x32 /* Version 3.2 */ +#define PCI_DEVICE_ID_INTEL_IOAT_IVB0 0x0e20 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB1 0x0e21 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB2 0x0e22 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB3 0x0e23 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB4 0x0e24 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB5 0x0e25 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB6 0x0e26 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB7 0x0e27 +#define PCI_DEVICE_ID_INTEL_IOAT_IVB8 0x0e2e +#define PCI_DEVICE_ID_INTEL_IOAT_IVB9 0x0e2f + int system_has_dca_enabled(struct pci_dev *pdev); struct ioat_dma_descriptor { diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c index bfa9a35..f4e6163 100644 --- a/drivers/dma/ioat/pci.c +++ b/drivers/dma/ioat/pci.c @@ -40,17 +40,6 @@ MODULE_VERSION(IOAT_DMA_VERSION); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Intel Corporation"); -#define PCI_DEVICE_ID_INTEL_IOAT_IVB0 0x0e20 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB1 0x0e21 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB2 0x0e22 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB3 0x0e23 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB4 0x0e24 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB5 0x0e25 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB6 0x0e26 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB7 0x0e27 -#define PCI_DEVICE_ID_INTEL_IOAT_IVB8 0x0e2e -#define PCI_DEVICE_ID_INTEL_IOAT_IVB9 0x0e2f - static struct pci_device_id ioat_pci_tbl[] = { /* I/OAT v1 platforms */ { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT) }, |
