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

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
hifive-unleashed-5.1
David Dillow 2011-03-21 21:41:47 +10:00 committed by Ben Skeggs
parent ec64a40868
commit 59197c0262
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/nouveau/nv50_evo.c
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@ -186,6 +186,7 @@ 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;