drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie

We don't need to pull the page address out of the page tables on nv4x
chips that have a real GART.

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

diff --git a/drivers/gpu/drm/nouveau/core/engine/dmaobj/nv04.c b/drivers/gpu/drm/nouveau/core/engine/dmaobj/nv04.c
index 5ad76f7..9f4cc2f 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/engine/dmaobj/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/engine/dmaobj/nv04.c
@@ -44,21 +44,24 @@ nv04_dmaobj_bind(struct nouveau_dmaeng *dmaeng,
                 struct nouveau_dmaobj *dmaobj,
                 struct nouveau_gpuobj **pgpuobj)
 {
+       struct nv04_vmmgr_priv *vmm = nv04_vmmgr(dmaeng);
        struct nouveau_gpuobj *gpuobj;
        u32 flags0 = nv_mclass(dmaobj);
        u32 flags2 = 0x00000000;
-       u32 offset = (dmaobj->start & 0xfffff000);
-       u32 adjust = (dmaobj->start & 0x00000fff);
+       u64 offset = dmaobj->start & 0xfffff000;
+       u64 adjust = dmaobj->start & 0x00000fff;
        u32 length = dmaobj->limit - dmaobj->start;
        int ret;
 
        if (dmaobj->target == NV_MEM_TARGET_VM) {
-               gpuobj = nv04_vmmgr(dmaeng)->vm->pgt[0].obj[0];
-               if (dmaobj->start == 0)
-                       return nouveau_gpuobj_dup(parent, gpuobj, pgpuobj);
+               if (nv_object(vmm)->oclass == &nv04_vmmgr_oclass) {
+                       struct nouveau_gpuobj *pgt = vmm->vm->pgt[0].obj[0];
+                       if (!dmaobj->start)
+                               return nouveau_gpuobj_dup(parent, pgt, pgpuobj);
+                       offset  = nv_ro32(pgt, 8 + (offset >> 10));
+                       offset &= 0xfffff000;
+               }
 
-               offset  = nv_ro32(gpuobj, 8 + (offset >> 10));
-               offset &= 0xfffff000;
                dmaobj->target = NV_MEM_TARGET_PCI;
                dmaobj->access = NV_MEM_ACCESS_RW;
        }