Commit 4cbfa1e6 authored by Thomas Hellstrom's avatar Thomas Hellstrom

drm/vmwgfx: Fix setting of dma masks

Previously we set only the dma mask and not the coherent mask. Fix that.
Also, for clarity, make sure both are initially set to 64 bits.

Cc: <stable@vger.kernel.org>
Fixes: 0d00c488: ("drm/vmwgfx: Fix the driver for large dma addresses")
Signed-off-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: default avatarDeepak Rawat <drawat@vmware.com>
parent 479d5902
......@@ -600,13 +600,16 @@ static int vmw_dma_select_mode(struct vmw_private *dev_priv)
static int vmw_dma_masks(struct vmw_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
int ret = 0;
if (intel_iommu_enabled &&
ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
if (dev_priv->map_mode != vmw_dma_phys &&
(sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
DRM_INFO("Restricting DMA addresses to 44 bits.\n");
return dma_set_mask(dev->dev, DMA_BIT_MASK(44));
return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
}
return 0;
return ret;
}
static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
......
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