nouveau: Various internal and external API changes

1. DRM_NOUVEAU_GPUOBJ_FREE
	Used to free GPU objects.  The obvious usage case is for Gr objects,
	but notifiers can also be destroyed in the same way.

	GPU objects gain a destructor method and private data fields with
	this change, so other specialised cases (like notifiers) can be
	implemented on top of gpuobjs.

2. DRM_NOUVEAU_CHANNEL_FREE

3. DRM_NOUVEAU_CARD_INIT
	Ideally we'd do init during module load, but this isn't currently
	possible.  Doing init during firstopen() is bad as X has a love of
	opening/closing the DRM many times during startup.  Once the
	modesetting-101 branch is merged this can go away.

	IRQs are enabled in nouveau_card_init() now, rather than having the
	X server call drmCtlInstHandler().  We'll need this for when we give
	the kernel module its own channel.

4. DRM_NOUVEAU_GETPARAM
	Add CHIPSET_ID value, which will return the chipset id derived
	from NV_PMC_BOOT_0.

4. Use list_* in a few places, rather than home-brewed stuff.

1 files changed, 3 insertions, 5 deletions

diff --git a/shared-core/nouveau_mem.c b/shared-core/nouveau_mem.c
index a7044c94..981af8a6 100644
--- a/shared-core/nouveau_mem.c
+++ b/shared-core/nouveau_mem.c
@@ -549,14 +549,10 @@ void nouveau_mem_free(struct drm_device* dev, struct mem_block* block)
 
 int nouveau_ioctl_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct drm_nouveau_mem_alloc *alloc = data;
 	struct mem_block *block;
 
-	if (!dev_priv) {
-		DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
-		return -EINVAL;
-	}
+	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 
 	block=nouveau_mem_alloc(dev, alloc->alignment, alloc->size,
 				alloc->flags, file_priv);
@@ -575,6 +571,8 @@ int nouveau_ioctl_mem_free(struct drm_device *dev, void *data, struct drm_file *
 	struct drm_nouveau_mem_free *memfree = data;
 	struct mem_block *block;
 
+	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
+
 	block=NULL;
 	if (memfree->flags & NOUVEAU_MEM_FB)
 		block = find_block(dev_priv->fb_heap, memfree->offset);