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| author | Ben Skeggs <bskeggs@redhat.com> | 2011-04-12 12:51:39 +0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-05-16 04:49:17 +0400 |
| commit | 7a5c23de36002d611609650e49ef0ebd46f5c141 (patch) | |
| tree | 64a5ee9885927c945a4a9ebdf17b919bf18a891b /drivers/gpu/drm/nouveau/nvc0_fifo.c | |
| parent | fe799114e2f0de37c3ddf900d15fa5e85936deba (diff) | |
| download | linux-7a5c23de36002d611609650e49ef0ebd46f5c141.tar.xz | |
drm/nvc0/fifo: kick channels off during suspend
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_fifo.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c index 55a4245c1a67..2bd0511511e4 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fifo.c +++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c @@ -240,6 +240,22 @@ nvc0_fifo_load_context(struct nouveau_channel *chan) int nvc0_fifo_unload_context(struct drm_device *dev) { + struct drm_nouveau_private *dev_priv = dev->dev_private; + int i; + + for (i = 0; i < 128; i++) { + if (!(nv_rd32(dev, 0x003004 + (i * 4)) & 1)) + continue; + + nv_mask(dev, 0x003004 + (i * 4), 0x00000001, 0x00000000); + nv_wr32(dev, 0x002634, i); + if (!nv_wait(dev, 0x002634, 0xffffffff, i)) { + NV_INFO(dev, "PFIFO: kick ch %d failed: 0x%08x\n", + i, nv_rd32(dev, 0x002634)); + return -EBUSY; + } + } + return 0; } |