diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2010-11-24 10:30:22 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-12-21 17:17:36 +1000 |
| commit | 529c4959129c7c425aaf3d5b6acc63edf76827ad (patch) | |
| tree | 67358ba558f5a59fc5bf5cc190af20ca71612aef | |
| parent | 96545299d7405d4c0f44b727718e263653fc11aa (diff) | |
| download | linux-529c4959129c7c425aaf3d5b6acc63edf76827ad.tar.bz2 | |
drm/nvc0: implement fencing
Just simple REF_CNT fencing for the moment.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fence.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 374a9793b85f..88b2f29ca3e4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -32,7 +32,8 @@ #include "nouveau_dma.h" #define USE_REFCNT(dev) (nouveau_private(dev)->chipset >= 0x10) -#define USE_SEMA(dev) (nouveau_private(dev)->chipset >= 0x17) +#define USE_SEMA(dev) (nouveau_private(dev)->chipset >= 0x17 && \ + nouveau_private(dev)->card_type < NV_C0) struct nouveau_fence { struct nouveau_channel *channel; @@ -139,6 +140,7 @@ nouveau_fence_emit(struct nouveau_fence *fence) { struct nouveau_channel *chan = fence->channel; struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; int ret; ret = RING_SPACE(chan, 2); @@ -159,8 +161,15 @@ nouveau_fence_emit(struct nouveau_fence *fence) list_add_tail(&fence->entry, &chan->fence.pending); spin_unlock(&chan->fence.lock); - BEGIN_RING(chan, NvSubSw, USE_REFCNT(dev) ? 0x0050 : 0x0150, 1); - OUT_RING(chan, fence->sequence); + if (USE_REFCNT(dev)) { + if (dev_priv->card_type < NV_C0) + BEGIN_RING(chan, NvSubSw, 0x0050, 1); + else + BEGIN_NVC0(chan, 2, NvSubSw, 0x0050, 1); + } else { + BEGIN_RING(chan, NvSubSw, 0x0150, 1); + } + OUT_RING (chan, fence->sequence); FIRE_RING(chan); return 0; @@ -445,11 +454,14 @@ nouveau_fence_channel_init(struct nouveau_channel *chan) if (ret) return ret; - ret = RING_SPACE(chan, 2); - if (ret) - return ret; - BEGIN_RING(chan, NvSubSw, 0, 1); - OUT_RING(chan, NvSw); + /* we leave subchannel empty for nvc0 */ + if (dev_priv->card_type < NV_C0) { + ret = RING_SPACE(chan, 2); + if (ret) + return ret; + BEGIN_RING(chan, NvSubSw, 0, 1); + OUT_RING(chan, NvSw); + } /* Create a DMA object for the shared cross-channel sync area. */ if (USE_SEMA(dev)) { |