Merge branch 'akpm/master'

[karo-tx-linux.git] / drivers / gpu / drm / nouveau / nouveau_ttm.c

diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 3f713c1b5dc112a42f58555a19c39ef73bbf67a5..d2e7d209f6517450165c33b7485f94102f887e6d 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -353,8 +353,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
 
        bits = nvxx_mmu(&drm->device)->dma_bits;
        if (nvxx_device(&drm->device)->func->pci) {
-               if (drm->agp.bridge ||
-                    !dma_supported(dev->dev, DMA_BIT_MASK(bits)))
+               if (drm->agp.bridge)
                        bits = 32;
        } else if (device->func->tegra) {
                struct nvkm_device_tegra *tegra = device->func->tegra(device);
@@ -369,6 +368,10 @@ nouveau_ttm_init(struct nouveau_drm *drm)
        }
 
        ret = dma_set_mask(dev->dev, DMA_BIT_MASK(bits));
+       if (ret && bits != 32) {
+               bits = 32;
+               ret = dma_set_mask(dev->dev, DMA_BIT_MASK(bits));
+       }
        if (ret)
                return ret;