diff options
Diffstat (limited to 'shared-core/nv30_graph.c')
| -rw-r--r-- | shared-core/nv30_graph.c | 68 |
1 files changed, 67 insertions, 1 deletions
diff --git a/shared-core/nv30_graph.c b/shared-core/nv30_graph.c index f4faadd8..7a87990a 100644 --- a/shared-core/nv30_graph.c +++ b/shared-core/nv30_graph.c @@ -100,7 +100,7 @@ static void nv30_graph_context_init(drm_device_t *dev, struct mem_block *ctx) } -int nv30_graph_context_create(drm_device_t *dev, int channel) +int nv30_graph_create_context(drm_device_t *dev, int channel) { drm_nouveau_private_t *dev_priv = (drm_nouveau_private_t *)dev->dev_private; @@ -132,6 +132,72 @@ int nv30_graph_context_create(drm_device_t *dev, int channel) return 0; } +void nv30_graph_destroy_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = + (drm_nouveau_private_t *)dev->dev_private; + struct nouveau_fifo *chan = &dev_priv->fifos[channel]; + + if (chan->ramin_grctx) { + nouveau_instmem_free(dev, chan->ramin_grctx); + chan->ramin_grctx = NULL; + } + + INSTANCE_WR(dev_priv->ctx_table, channel, 0); +} + +static int +nouveau_graph_wait_idle(drm_device_t *dev) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + int tv = 1000; + + while (tv--) { + if (NV_READ(0x400700) == 0) + break; + } + + if (NV_READ(0x400700)) { + DRM_ERROR("timeout!\n"); + return DRM_ERR(EBUSY); + } + return 0; +} + +int nv30_graph_load_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_fifo *chan = &dev_priv->fifos[channel]; + uint32_t inst; + + if (!chan->ramin_grctx) + return DRM_ERR(EINVAL); + inst = nouveau_chip_instance_get(dev, chan->ramin_grctx); + + NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_POINTER, inst); + NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_XFER, + NV20_PGRAPH_CHANNEL_CTX_XFER_LOAD); + + return nouveau_graph_wait_idle(dev); +} + +int nv30_graph_save_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_fifo *chan = &dev_priv->fifos[channel]; + uint32_t inst; + + if (!chan->ramin_grctx) + return DRM_ERR(EINVAL); + inst = nouveau_chip_instance_get(dev, chan->ramin_grctx); + + NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_POINTER, inst); + NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_XFER, + NV20_PGRAPH_CHANNEL_CTX_XFER_SAVE); + + return nouveau_graph_wait_idle(dev); +} + int nv30_graph_init(drm_device_t *dev) { drm_nouveau_private_t *dev_priv = |