diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2010-08-04 22:48:34 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-08-06 08:35:54 +1000 |
| commit | 147cad0936f3c59ec5678fe47319e44e3ea44d87 (patch) | |
| tree | 1a974459f4a4a621538db49a6281a9069dc6c98c /drivers/gpu/drm/nouveau/nvc0_instmem.c | |
| parent | b715d64028ea90bcb67b3823ae1cc908a4ae0bc6 (diff) | |
drm/nvc0: backup bar3 channel on suspend
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_instmem.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_instmem.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_instmem.c b/drivers/gpu/drm/nouveau/nvc0_instmem.c index e2a0bb84d910..e74bd454f63b 100644 --- a/drivers/gpu/drm/nouveau/nvc0_instmem.c +++ b/drivers/gpu/drm/nouveau/nvc0_instmem.c @@ -141,12 +141,34 @@ nvc0_instmem_flush(struct drm_device *dev) int nvc0_instmem_suspend(struct drm_device *dev) { + struct drm_nouveau_private *dev_priv = dev->dev_private; + int i; + + dev_priv->susres.ramin_copy = vmalloc(65536); + if (!dev_priv->susres.ramin_copy) + return -ENOMEM; + + for (i = 0x700000; i < 0x710000; i += 4) + dev_priv->susres.ramin_copy[i/4] = nv_rd32(dev, i); return 0; } void nvc0_instmem_resume(struct drm_device *dev) { + struct drm_nouveau_private *dev_priv = dev->dev_private; + u64 chan; + int i; + + chan = dev_priv->vram_size - dev_priv->ramin_rsvd_vram; + nv_wr32(dev, 0x001700, chan >> 16); + + for (i = 0x700000; i < 0x710000; i += 4) + nv_wr32(dev, i, dev_priv->susres.ramin_copy[i/4]); + vfree(dev_priv->susres.ramin_copy); + dev_priv->susres.ramin_copy = NULL; + + nv_wr32(dev, 0x001714, 0xc0000000 | (chan >> 12)); } int |