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drm/nouveau: teach nouveau_bo_pin() how to force a contig vram allocation

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We have the ability to move buffers around in the kernel if necessary,
and should probably use it rather than failing if userspace passes us
a non-contig buffer for a plane.

The NOUVEAU_GEM_TILE_NONCONTIG flag from userspace will become a mere
initial placement hint once all the relevant paths have been updated.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
2014-11-10 11:24:27 +10:00
parent ef1df1bc11
commit ad76b3f7c7
13 changed files with 52 additions and 27 deletions
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2
drivers/gpu/drm/nouveau/nv17_fence.c
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@@ -131,7 +131,7 @@ nv17_fence_create(struct nouveau_drm *drm)
ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
0, 0x0000, NULL, NULL, &priv->bo);
if (!ret) {
ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM);
ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM, false);
if (!ret) {
ret = nouveau_bo_map(priv->bo);
if (ret)