drm/nv50-nvc0: work around an evo channel hang that some people see

[linux-flexiantxendom0-natty.git] / drivers / gpu / drm / nouveau / nv50_evo.c

diff --git a/drivers/gpu/drm/nouveau/nv50_evo.c b/drivers/gpu/drm/nouveau/nv50_evo.c
index 0ea090f..3055dbe 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_evo.c
+++ b/drivers/gpu/drm/nouveau/nv50_evo.c
@@ -182,6 +182,7 @@ nv50_evo_channel_init(struct nouveau_channel *evo)
        nv_mask(dev, 0x610028, 0x00000000, 0x00010001 << id);
 
        evo->dma.max = (4096/4) - 2;
+       evo->dma.max &= ~7;
        evo->dma.put = 0;
        evo->dma.cur = evo->dma.put;
        evo->dma.free = evo->dma.max - evo->dma.cur;