drm/nouveau/nvdec: initialise SW state for falcon from constructor

This will allow us to register the falcon with ACR, and further customise
its behaviour by providing the nvkm_falcon_func structure directly.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

@@ -3,13 +3,12 @@
 #define __NVKM_NVDEC_H__
 #define nvkm_nvdec(p) container_of((p), struct nvkm_nvdec, engine)
 #include <core/engine.h>
+#include <core/falcon.h>
 
 struct nvkm_nvdec {
 	const struct nvkm_nvdec_func *func;
 	struct nvkm_engine engine;
-	u32 addr;
-
-	struct nvkm_falcon *falcon;
+	struct nvkm_falcon falcon;
 };
 
 int gp102_nvdec_new(struct nvkm_device *, int, struct nvkm_nvdec **);

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

@@ -20,38 +20,19 @@
  * DEALINGS IN THE SOFTWARE.
  */
 #include "priv.h"
-
 #include <core/firmware.h>
-#include <subdev/top.h>
-#include <engine/falcon.h>
-
-static int
-nvkm_nvdec_oneinit(struct nvkm_engine *engine)
-{
-	struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
-	struct nvkm_subdev *subdev = &nvdec->engine.subdev;
-
-	nvdec->addr = nvkm_top_addr(subdev->device, subdev->index);
-	if (!nvdec->addr)
-		return -EINVAL;
-
-	/*XXX: fix naming of this when adding support for multiple-NVDEC */
-	return nvkm_falcon_v1_new(subdev, "NVDEC", nvdec->addr,
-				  &nvdec->falcon);
-}
 
 static void *
 nvkm_nvdec_dtor(struct nvkm_engine *engine)
 {
 	struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
-	nvkm_falcon_del(&nvdec->falcon);
+	nvkm_falcon_dtor(&nvdec->falcon);
 	return nvdec;
 }
 
 static const struct nvkm_engine_func
 nvkm_nvdec = {
 	.dtor = nvkm_nvdec_dtor,
-	.oneinit = nvkm_nvdec_oneinit,
 };
 
 int
@@ -74,5 +55,7 @@ nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *device,
 		return -ENODEV;
 
 	nvdec->func = fwif->func;
-	return 0;
+
+	return nvkm_falcon_ctor(nvdec->func->flcn, &nvdec->engine.subdev,
+				nvkm_subdev_name[index], 0, &nvdec->falcon);
 };

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/gp102.c

@@ -21,8 +21,23 @@
  */
 #include "priv.h"
 
+static const struct nvkm_falcon_func
+gp102_nvdec_flcn = {
+	.load_imem = nvkm_falcon_v1_load_imem,
+	.load_dmem = nvkm_falcon_v1_load_dmem,
+	.read_dmem = nvkm_falcon_v1_read_dmem,
+	.bind_context = nvkm_falcon_v1_bind_context,
+	.wait_for_halt = nvkm_falcon_v1_wait_for_halt,
+	.clear_interrupt = nvkm_falcon_v1_clear_interrupt,
+	.set_start_addr = nvkm_falcon_v1_set_start_addr,
+	.start = nvkm_falcon_v1_start,
+	.enable = nvkm_falcon_v1_enable,
+	.disable = nvkm_falcon_v1_disable,
+};
+
 static const struct nvkm_nvdec_func
 gp102_nvdec = {
+	.flcn = &gp102_nvdec_flcn,
 };
 
 static int

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

@@ -4,6 +4,7 @@
 #include <engine/nvdec.h>
 
 struct nvkm_nvdec_func {
+	const struct nvkm_falcon_func *flcn;
 };
 
 struct nvkm_nvdec_fwif {

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gp102.c

@@ -62,7 +62,7 @@ gp102_run_secure_scrub(struct nvkm_secboot *sb)
 	engine = nvkm_engine_ref(&device->nvdec[0]->engine);
 	if (IS_ERR(engine))
 		return PTR_ERR(engine);
-	falcon = device->nvdec[0]->falcon;
+	falcon = &device->nvdec[0]->falcon;
 
 	nvkm_falcon_get(falcon, &sb->subdev);