drm/nouveau: use drm_mm in preference to custom code doing the same thing

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 14 insertions, 14 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c
index e7c100ba63a1..d436c3c7f4f5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_object.c
+++ b/drivers/gpu/drm/nouveau/nouveau_object.c
@@ -209,7 +209,7 @@ nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan,
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_engine *engine = &dev_priv->engine;
         struct nouveau_gpuobj *gpuobj;
-        struct mem_block *pramin = NULL;
+        struct drm_mm *pramin = NULL;
         int ret;
 
         NV_DEBUG(dev, "ch%d size=%u align=%d flags=0x%08x\n",
@@ -233,17 +233,17 @@ nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan,
          * available.
          */
         if (chan) {
-                if (chan->ramin_heap) {
+                if (chan->ramin_heap.ml_entry.next) {
                         NV_DEBUG(dev, "private heap\n");
-                        pramin = chan->ramin_heap;
+                        pramin = &chan->ramin_heap;
                 } else
                 if (dev_priv->card_type < NV_50) {
                         NV_DEBUG(dev, "global heap fallback\n");
-                        pramin = dev_priv->ramin_heap;
+                        pramin = &dev_priv->ramin_heap;
                 }
         } else {
                 NV_DEBUG(dev, "global heap\n");
-                pramin = dev_priv->ramin_heap;
+                pramin = &dev_priv->ramin_heap;
         }
 
         if (!pramin) {
@@ -260,9 +260,10 @@ nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan,
         }
 
         /* Allocate a chunk of the PRAMIN aperture */
-        gpuobj->im_pramin = nouveau_mem_alloc_block(pramin, size,
-                                                    drm_order(align),
-                                                    (struct drm_file *)-2, 0);
+        gpuobj->im_pramin = drm_mm_search_free(pramin, size, align, 0);
+        if (gpuobj->im_pramin)
+                gpuobj->im_pramin = drm_mm_get_block(gpuobj->im_pramin, size, align);
+
         if (!gpuobj->im_pramin) {
                 nouveau_gpuobj_del(dev, &gpuobj);
                 return -ENOMEM;
@@ -386,7 +387,7 @@ nouveau_gpuobj_del(struct drm_device *dev, struct nouveau_gpuobj **pgpuobj)
                 if (gpuobj->flags & NVOBJ_FLAG_FAKE)
                         kfree(gpuobj->im_pramin);
                 else
-                        nouveau_mem_free_block(gpuobj->im_pramin);
+                        drm_mm_put_block(gpuobj->im_pramin);
         }
 
         list_del(&gpuobj->list);
@@ -589,7 +590,7 @@ nouveau_gpuobj_new_fake(struct drm_device *dev, uint32_t p_offset,
         list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
 
         if (p_offset != ~0) {
-                gpuobj->im_pramin = kzalloc(sizeof(struct mem_block),
+                gpuobj->im_pramin = kzalloc(sizeof(struct drm_mm_node),
                                             GFP_KERNEL);
                 if (!gpuobj->im_pramin) {
                         nouveau_gpuobj_del(dev, &gpuobj);
@@ -944,8 +945,7 @@ nouveau_gpuobj_channel_init_pramin(struct nouveau_channel *chan)
         }
         pramin = chan->ramin->gpuobj;
 
-        ret = nouveau_mem_init_heap(&chan->ramin_heap,
-                                    pramin->im_pramin->start + base, size);
+        ret = drm_mm_init(&chan->ramin_heap, pramin->im_pramin->start + base, size);
         if (ret) {
                 NV_ERROR(dev, "Error creating PRAMIN heap: %d\n", ret);
                 nouveau_gpuobj_ref_del(dev, &chan->ramin);
@@ -1130,8 +1130,8 @@ nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan)
         for (i = 0; i < dev_priv->vm_vram_pt_nr; i++)
                 nouveau_gpuobj_ref_del(dev, &chan->vm_vram_pt[i]);
 
-        if (chan->ramin_heap)
-                nouveau_mem_takedown(&chan->ramin_heap);
+        if (chan->ramin_heap.free_stack.next)
+                drm_mm_takedown(&chan->ramin_heap);
         if (chan->ramin)
                 nouveau_gpuobj_ref_del(dev, &chan->ramin);