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| author | Thomas Hellstrom <thellstrom@vmware.com> | 2019-01-28 12:31:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-15 10:09:13 +0300 |
| commit | d69e310cbfcbbf5c7b409c477005355487aa79f4 (patch) | |
| tree | 2318a44c3f335dd846691a9e151d0d5aeaaeaa7f | |
| parent | 90c7dfa37723f974c8a29155cc38e76ab8ea4a2d (diff) | |
| download | linux-d69e310cbfcbbf5c7b409c477005355487aa79f4.tar.xz | |
drm/vmwgfx: Fix setting of dma masks
commit 4cbfa1e6c09e98450aab3240e5119b0ab2c9795b upstream.
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: 0d00c488f3de: ("drm/vmwgfx: Fix the driver for large dma addresses")
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 86d25f18aa99..3bc7915097ad 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -604,13 +604,16 @@ out_fixup: 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; } #else static int vmw_dma_masks(struct vmw_private *dev_priv) |