Merge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-test

* 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nv04/crtc: Bail out if FB is not bound to crtc
  drm/nouveau: fix nv04_sgdma_bind on non-"4kB pages" archs
  drm/nouveau: properly handle allocation failure in nouveau_sgdma_populate
  drm/nouveau: fix oops on pre-semaphore hardware
  drm/nv50/crtc: Bail out if FB is not bound to crtc

4 files changed, 30 insertions, 7 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 8d02d875376..c919cfc8f2f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -530,7 +530,8 @@ nouveau_fence_channel_init(struct nouveau_channel *chan)
                 nouveau_gpuobj_ref(NULL, &obj);
                 if (ret)
                         return ret;
-        } else {
+        } else
+        if (USE_SEMA(dev)) {
                 /* map fence bo into channel's vm */
                 ret = nouveau_bo_vma_add(dev_priv->fence.bo, chan->vm,
                                          &chan->fence.vma);
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index c444cadbf84..2706cb3d871 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -37,8 +37,11 @@ nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
                 return -ENOMEM;
 
         nvbe->ttm_alloced = kmalloc(sizeof(bool) * num_pages, GFP_KERNEL);
-        if (!nvbe->ttm_alloced)
+        if (!nvbe->ttm_alloced) {
+                kfree(nvbe->pages);
+                nvbe->pages = NULL;
                 return -ENOMEM;
+        }
 
         nvbe->nr_pages = 0;
         while (num_pages--) {
@@ -126,7 +129,7 @@ nv04_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 
                 for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++) {
                         nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 3);
-                        dma_offset += NV_CTXDMA_PAGE_SIZE;
+                        offset_l += NV_CTXDMA_PAGE_SIZE;
                 }
         }
 
diff --git a/drivers/gpu/drm/nouveau/nv04_crtc.c b/drivers/gpu/drm/nouveau/nv04_crtc.c
index 118261d4927..5e45398a9e2 100644
--- a/drivers/gpu/drm/nouveau/nv04_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv04_crtc.c
@@ -781,11 +781,20 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
         struct drm_device *dev = crtc->dev;
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nv04_crtc_reg *regp = &dev_priv->mode_reg.crtc_reg[nv_crtc->index];
-        struct drm_framebuffer *drm_fb = nv_crtc->base.fb;
-        struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+        struct drm_framebuffer *drm_fb;
+        struct nouveau_framebuffer *fb;
         int arb_burst, arb_lwm;
         int ret;
 
+        NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
+
+        /* no fb bound */
+        if (!atomic && !crtc->fb) {
+                NV_DEBUG_KMS(dev, "No FB bound\n");
+                return 0;
+        }
+
+
         /* If atomic, we want to switch to the fb we were passed, so
          * now we update pointers to do that.  (We don't pin; just
          * assume we're already pinned and update the base address.)
@@ -794,6 +803,8 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
                 drm_fb = passed_fb;
                 fb = nouveau_framebuffer(passed_fb);
         } else {
+                drm_fb = crtc->fb;
+                fb = nouveau_framebuffer(crtc->fb);
                 /* If not atomic, we can go ahead and pin, and unpin the
                  * old fb we were passed.
                  */
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 46ad59ea218..5d989073ba6 100644
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -519,12 +519,18 @@ nv50_crtc_do_mode_set_base(struct drm_crtc *crtc,
         struct drm_device *dev = nv_crtc->base.dev;
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_channel *evo = nv50_display(dev)->master;
-        struct drm_framebuffer *drm_fb = nv_crtc->base.fb;
-        struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+        struct drm_framebuffer *drm_fb;
+        struct nouveau_framebuffer *fb;
         int ret;
 
         NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
 
+        /* no fb bound */
+        if (!atomic && !crtc->fb) {
+                NV_DEBUG_KMS(dev, "No FB bound\n");
+                return 0;
+        }
+
         /* If atomic, we want to switch to the fb we were passed, so
          * now we update pointers to do that.  (We don't pin; just
          * assume we're already pinned and update the base address.)
@@ -533,6 +539,8 @@ nv50_crtc_do_mode_set_base(struct drm_crtc *crtc,
                 drm_fb = passed_fb;
                 fb = nouveau_framebuffer(passed_fb);
         } else {
+                drm_fb = crtc->fb;
+                fb = nouveau_framebuffer(crtc->fb);
                 /* If not atomic, we can go ahead and pin, and unpin the
                  * old fb we were passed.
                  */