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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>
This commit is contained in:
Zhenyu Wang 2010-08-19 09:46:13 +08:00 committed by Eric Anholt
parent 156dadc180
commit 877fdacf82
1 changed files with 15 additions and 9 deletions
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24
drivers/char/agp/intel-agp.c
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@ -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;
}