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Subjectlinux-next: manual merge of the akpm tree with the drm tree
Hi Andrew,

Today's linux-next merge of the akpm tree got a conflict in:

drivers/gpu/drm/nouveau/nouveau_ttm.c

between commits:

524883bb4846 ("drm/nouveau/ttm: convert to DMA API")
b31cf78b9324 ("drm/nouveau/ttm: set the DMA mask for platform devices")

from the drm tree and patch:

"nouveau: don't call pci_dma_supported"

from the akpm tree.

I fixed it up (so the patch now looks like below) and can carry the fix
as necessary (no action is required).

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;

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au


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