drm/nouveau/core: add nvdec plumbing

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

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

@@ -51,6 +51,7 @@ enum nvkm_devidx {
 	NVKM_ENGINE_NVENC1,
 	NVKM_ENGINE_NVENC_LAST = NVKM_ENGINE_NVENC1,
 
+	NVKM_ENGINE_NVDEC,
 	NVKM_ENGINE_PM,
 	NVKM_ENGINE_SEC,
 	NVKM_ENGINE_SW,
@@ -147,6 +148,7 @@ struct nvkm_device {
 	struct nvkm_engine *msppp;
 	struct nvkm_engine *msvld;
 	struct nvkm_engine *nvenc[2];
+	struct nvkm_engine *nvdec;
 	struct nvkm_pm *pm;
 	struct nvkm_engine *sec;
 	struct nvkm_sw *sw;
@@ -215,6 +217,7 @@ struct nvkm_device_chip {
 	int (*msppp   )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*msvld   )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*nvenc[2])(struct nvkm_device *, int idx, struct nvkm_engine **);
+	int (*nvdec   )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*pm      )(struct nvkm_device *, int idx, struct nvkm_pm **);
 	int (*sec     )(struct nvkm_device *, int idx, struct nvkm_engine **);
 	int (*sw      )(struct nvkm_device *, int idx, struct nvkm_sw **);

drivers/gpu/drm/nouveau/include/nvkm/engine/nvdec.h

+#ifndef __NVKM_NVDEC_H__
+#define __NVKM_NVDEC_H__
+#include <core/engine.h>
+#endif

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

@@ -69,6 +69,7 @@ nvkm_subdev_name[NVKM_SUBDEV_NR] = {
 	[NVKM_ENGINE_MSVLD   ] = "msvld",
 	[NVKM_ENGINE_NVENC0  ] = "nvenc0",
 	[NVKM_ENGINE_NVENC1  ] = "nvenc1",
+	[NVKM_ENGINE_NVDEC   ] = "nvdec",
 	[NVKM_ENGINE_PM      ] = "pm",
 	[NVKM_ENGINE_SEC     ] = "sec",
 	[NVKM_ENGINE_SW      ] = "sw",

drivers/gpu/drm/nouveau/nvkm/engine/Kbuild

@@ -15,6 +15,7 @@ include $(src)/nvkm/engine/mspdec/Kbuild
 include $(src)/nvkm/engine/msppp/Kbuild
 include $(src)/nvkm/engine/msvld/Kbuild
 include $(src)/nvkm/engine/nvenc/Kbuild
+include $(src)/nvkm/engine/nvdec/Kbuild
 include $(src)/nvkm/engine/pm/Kbuild
 include $(src)/nvkm/engine/sec/Kbuild
 include $(src)/nvkm/engine/sw/Kbuild

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

@@ -2185,6 +2185,7 @@ nvkm_device_engine(struct nvkm_device *device, int index)
 	_(MSVLD  , device->msvld   ,  device->msvld);
 	_(NVENC0 , device->nvenc[0],  device->nvenc[0]);
 	_(NVENC1 , device->nvenc[1],  device->nvenc[1]);
+	_(NVDEC  , device->nvdec   ,  device->nvdec);
 	_(PM     , device->pm      , &device->pm->engine);
 	_(SEC    , device->sec     ,  device->sec);
 	_(SW     , device->sw      , &device->sw->engine);
@@ -2620,6 +2621,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
 		_(NVKM_ENGINE_MSVLD   ,    msvld);
 		_(NVKM_ENGINE_NVENC0  , nvenc[0]);
 		_(NVKM_ENGINE_NVENC1  , nvenc[1]);
+		_(NVKM_ENGINE_NVDEC   ,    nvdec);
 		_(NVKM_ENGINE_PM      ,       pm);
 		_(NVKM_ENGINE_SEC     ,      sec);
 		_(NVKM_ENGINE_SW      ,       sw);

drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h

@@ -37,6 +37,7 @@
 #include <engine/msppp.h>
 #include <engine/msvld.h>
 #include <engine/nvenc.h>
+#include <engine/nvdec.h>
 #include <engine/pm.h>
 #include <engine/sec.h>
 #include <engine/sw.h>

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/Kbuild

+#nvkm-y += nvkm/engine/nvdec/base.o