3 files changed, 64 insertions, 48 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index e9f01906c52e..2f5d47021106 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -461,11 +461,8 @@ nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, int no_wait,
         int ret;
 
         chan = nvbo->channel;
-        if (!chan || nvbo->tile_flags || nvbo->no_vm) {
+        if (!chan || nvbo->tile_flags || nvbo->no_vm)
                 chan = dev_priv->channel;
-                if (!chan)
-                        return -EINVAL;
-        }
 
         src_offset = old_mem->mm_node->start << PAGE_SHIFT;
         dst_offset = new_mem->mm_node->start << PAGE_SHIFT;
@@ -631,7 +628,8 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
                         return ret;
         }
 
-        if (dev_priv->init_state != NOUVEAU_CARD_INIT_DONE)
+        if (dev_priv->init_state != NOUVEAU_CARD_INIT_DONE ||
+            !dev_priv->channel)
                 return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
 
         if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 489d49268119..84af25c238b6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -58,7 +58,7 @@ nouveau_fbcon_sync(struct fb_info *info)
         struct nouveau_channel *chan = dev_priv->channel;
         int ret, i;
 
-        if (!chan->accel_done ||
+        if (!chan || !chan->accel_done ||
             info->state != FBINFO_STATE_RUNNING ||
             info->flags & FBINFO_HWACCEL_DISABLED)
                 return 0;
@@ -318,14 +318,16 @@ nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width,
         par->nouveau_fb = nouveau_fb;
         par->dev = dev;
 
-        switch (dev_priv->card_type) {
-        case NV_50:
-                nv50_fbcon_accel_init(info);
-                break;
-        default:
-                nv04_fbcon_accel_init(info);
-                break;
-        };
+        if (dev_priv->channel) {
+                switch (dev_priv->card_type) {
+                case NV_50:
+                        nv50_fbcon_accel_init(info);
+                        break;
+                default:
+                        nv04_fbcon_accel_init(info);
+                        break;
+                };
+        }
 
         nouveau_fbcon_zfill(dev);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 9fc582432da9..e76ec2d207a9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -299,12 +299,57 @@ nouveau_vga_set_decode(void *priv, bool state)
                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 }
 
+static int
+nouveau_card_init_channel(struct drm_device *dev)
+{
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+        struct nouveau_gpuobj *gpuobj;
+        int ret;
+
+        ret = nouveau_channel_alloc(dev, &dev_priv->channel,
+                                    (struct drm_file *)-2,
+                                    NvDmaFB, NvDmaTT);
+        if (ret)
+                return ret;
+
+        gpuobj = NULL;
+        ret = nouveau_gpuobj_dma_new(dev_priv->channel, NV_CLASS_DMA_IN_MEMORY,
+                                     0, nouveau_mem_fb_amount(dev),
+                                     NV_DMA_ACCESS_RW, NV_DMA_TARGET_VIDMEM,
+                                     &gpuobj);
+        if (ret)
+                goto out_err;
+
+        ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaVRAM,
+                                     gpuobj, NULL);
+        if (ret)
+                goto out_err;
+
+        gpuobj = NULL;
+        ret = nouveau_gpuobj_gart_dma_new(dev_priv->channel, 0,
+                                          dev_priv->gart_info.aper_size,
+                                          NV_DMA_ACCESS_RW, &gpuobj, NULL);
+        if (ret)
+                goto out_err;
+
+        ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaGART,
+                                     gpuobj, NULL);
+        if (ret)
+                goto out_err;
+
+        return 0;
+out_err:
+        nouveau_gpuobj_del(dev, &gpuobj);
+        nouveau_channel_free(dev_priv->channel);
+        dev_priv->channel = NULL;
+        return ret;
+}
+
 int
 nouveau_card_init(struct drm_device *dev)
 {
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_engine *engine;
-        struct nouveau_gpuobj *gpuobj;
         int ret;
 
         NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
@@ -387,39 +432,10 @@ nouveau_card_init(struct drm_device *dev)
 
         /* what about PVIDEO/PCRTC/PRAMDAC etc? */
 
-        ret = nouveau_channel_alloc(dev, &dev_priv->channel,
-                                    (struct drm_file *)-2,
-                                    NvDmaFB, NvDmaTT);
-        if (ret)
-                goto out_irq;
-
-        gpuobj = NULL;
-        ret = nouveau_gpuobj_dma_new(dev_priv->channel, NV_CLASS_DMA_IN_MEMORY,
-                                     0, nouveau_mem_fb_amount(dev),
-                                     NV_DMA_ACCESS_RW, NV_DMA_TARGET_VIDMEM,
-                                     &gpuobj);
-        if (ret)
-                goto out_irq;
-
-        ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaVRAM,
-                                     gpuobj, NULL);
-        if (ret) {
-                nouveau_gpuobj_del(dev, &gpuobj);
-                goto out_irq;
-        }
-
-        gpuobj = NULL;
-        ret = nouveau_gpuobj_gart_dma_new(dev_priv->channel, 0,
-                                          dev_priv->gart_info.aper_size,
-                                          NV_DMA_ACCESS_RW, &gpuobj, NULL);
-        if (ret)
-                goto out_irq;
-
-        ret = nouveau_gpuobj_ref_add(dev, dev_priv->channel, NvDmaGART,
-                                     gpuobj, NULL);
-        if (ret) {
-                nouveau_gpuobj_del(dev, &gpuobj);
-                goto out_irq;
+        if (!engine->graph.accel_blocked) {
+                ret = nouveau_card_init_channel(dev);
+                if (ret)
+                        goto out_irq;
         }
 
         if (drm_core_check_feature(dev, DRIVER_MODESET)) {