drm/nouveau/top/tu102-: prepare for GSP-RM

- disable TOP completely when GSP-RM detected

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-22-skeggsb@gmail.com

Author: Ben Skeggs

drivers/gpu/drm/nouveau/nvkm/subdev/top/ga100.c

@@ -21,6 +21,8 @@
  */
 #include "priv.h"
 
+#include <subdev/gsp.h>
+
 static int
 ga100_top_parse(struct nvkm_top *top)
 {
@@ -104,5 +106,8 @@ int
 ga100_top_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	      struct nvkm_top **ptop)
 {
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
 	return nvkm_top_new_(&ga100_top, device, type, inst, ptop);
 }

drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c

@@ -23,6 +23,8 @@
  */
 #include "priv.h"
 
+#include <subdev/gsp.h>
+
 static int
 gk104_top_parse(struct nvkm_top *top)
 {
@@ -115,5 +117,8 @@ int
 gk104_top_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	      struct nvkm_top **ptop)
 {
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
 	return nvkm_top_new_(&gk104_top, device, type, inst, ptop);
 }