drm/nouveau/ibus: namespace + nvidia gpu names (no binary change)

The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver.  This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).

Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.

A comparison of objdump disassemblies proves no code changes.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/nvc0.c
index 310fd41..fbe552e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/nvc0.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/nvc0.c
@@ -74,7 +74,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -107,7 +107,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -140,7 +140,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -172,7 +172,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -205,7 +205,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -237,7 +237,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -269,7 +269,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -302,7 +302,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
@@ -334,7 +334,7 @@
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gf100_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
-		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gf100_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_MMU    ] = &nvc0_mmu_oclass;
 		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;