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| author | Christoph Hellwig <hch@lst.de> | 2015-11-10 14:45:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-10 16:32:11 -0800 |
| commit | 0dcc4a59d5a9821ed6f6cf5e88c96ff4f25e55aa (patch) | |
| tree | cffa0eb65e4d57df07cc1c4b0345e90401b3bda2 | |
| parent | e806f75d527f7d0372fe838a80d3b7a6e1fde1b9 (diff) | |
| download | linux-0dcc4a59d5a9821ed6f6cf5e88c96ff4f25e55aa.tar.gz | |
nouveau: don't call pci_dma_supported
Just try to set a 64-bit DMA mask first and retry with the smaller dma_mask if dma_set_mask failed. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: David Airlie <airlied@linux.ie> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Alexandre Courbot <acourbot@nvidia.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Thierry Reding <treding@nvidia.com> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ttm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 3f713c1b5dc1..d2e7d209f651 100644 --- 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; |