diff options
| author | Zhenyu Wang <zhenyuw@linux.intel.com> | 2010-08-19 09:46:13 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-08-21 23:24:50 -0700 |
| commit | 877fdacf8291d7627f339885b5ae52c2f6061734 (patch) | |
| tree | 2bfa23d723deeeb95298f69a83ab44f70dcac96c /drivers | |
| parent | 156dadc180a1bd3a25d644ee6c361afc465ccd0e (diff) | |
| download | linux-877fdacf8291d7627f339885b5ae52c2f6061734.tar.bz2 | |
agp/intel: set 40-bit dma mask on Sandybridge
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/agp/intel-agp.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index ddf5def1b0da..ab1903955ac0 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -825,7 +825,8 @@ static const struct intel_driver_description { static int __devinit intel_gmch_probe(struct pci_dev *pdev, struct agp_bridge_data *bridge) { - int i; + int i, mask; + bridge->driver = NULL; for (i = 0; intel_agp_chipsets[i].name != NULL; i++) { @@ -845,14 +846,19 @@ static int __devinit intel_gmch_probe(struct pci_dev *pdev, dev_info(&pdev->dev, "Intel %s Chipset\n", intel_agp_chipsets[i].name); - if (bridge->driver->mask_memory == intel_i965_mask_memory) { - if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(36))) - dev_err(&intel_private.pcidev->dev, - "set gfx device dma mask 36bit failed!\n"); - else - pci_set_consistent_dma_mask(intel_private.pcidev, - DMA_BIT_MASK(36)); - } + if (bridge->driver->mask_memory == intel_gen6_mask_memory) + mask = 40; + else if (bridge->driver->mask_memory == intel_i965_mask_memory) + mask = 36; + else + mask = 32; + + if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask))) + dev_err(&intel_private.pcidev->dev, + "set gfx device dma mask %d-bit failed!\n", mask); + else + pci_set_consistent_dma_mask(intel_private.pcidev, + DMA_BIT_MASK(mask)); return 1; } |