drm/nouveau/ifb: switch to instanced constructor

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/core/device.h

@@ -60,7 +60,6 @@ struct nvkm_device {
 		struct notifier_block nb;
 	} acpi;
 
-	struct nvkm_engine *ifb;
 	struct nvkm_engine *me;
 	struct nvkm_engine *mpeg;
 	struct nvkm_engine *msenc;
@@ -115,7 +114,6 @@ struct nvkm_device_chip {
 #undef NVKM_LAYOUT_INST
 #undef NVKM_LAYOUT_ONCE
 
-	int (*ifb     )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*me      )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*mpeg    )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*msenc   )(struct nvkm_device *, int idx, struct nvkm_engine **);

drivers/gpu/drm/nouveau/include/nvkm/core/layout.h

@@ -32,4 +32,5 @@ NVKM_LAYOUT_ONCE(NVKM_ENGINE_DISP    , struct nvkm_disp    ,     disp)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_DMAOBJ  , struct nvkm_dma     ,      dma)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_FIFO    , struct nvkm_fifo    ,     fifo)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_GR      , struct nvkm_gr      ,       gr)
+NVKM_LAYOUT_ONCE(NVKM_ENGINE_IFB     , struct nvkm_engine  ,      ifb)
 NVKM_LAYOUT_ONCE(NVKM_ENGINE_VP      , struct nvkm_engine  ,       vp)

drivers/gpu/drm/nouveau/nvkm/core/subdev.c

@@ -33,7 +33,6 @@ nvkm_subdev_type[NVKM_SUBDEV_NR] = {
 #include <core/layout.h>
 #undef NVKM_LAYOUT_ONCE
 #undef NVKM_LAYOUT_INST
-	[NVKM_ENGINE_IFB     ] = "ifb",
 	[NVKM_ENGINE_ME      ] = "me",
 	[NVKM_ENGINE_MPEG    ] = "mpeg",
 	[NVKM_ENGINE_MSENC   ] = "msenc",

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -3174,7 +3174,6 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
 #include <core/layout.h>
 #undef NVKM_LAYOUT_INST
 #undef NVKM_LAYOUT_ONCE
-		_(NVKM_ENGINE_IFB     ,      ifb);
 		_(NVKM_ENGINE_ME      ,       me);
 		_(NVKM_ENGINE_MPEG    ,     mpeg);
 		_(NVKM_ENGINE_MSENC   ,    msenc);