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

Ben Skeggs · airlied · commit c41aebc9aca4 · 2023-10-31T15:08:11.000+10:00
- disable FUSE 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/20230918202149.4343-12-skeggsb@gmail.com
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gm107.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gm107.c
@@ -23,6 +23,8 @@
  */
 #include "priv.h"
 
+#include <subdev/gsp.h>
+
 static u32
 gm107_fuse_read(struct nvkm_fuse *fuse, u32 addr)
 {
@@ -39,5 +41,8 @@ int
 gm107_fuse_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	       struct nvkm_fuse **pfuse)
 {
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
 	return nvkm_fuse_new_(&gm107_fuse, device, type, inst, pfuse);
 }

Original file line number	Diff line number	Diff line change
`@@ -23,6 +23,8 @@`
`23`	`23`	`*/`
`24`	`24`	`#include "priv.h"`
`25`	`25`
	`26`	`+#include <subdev/gsp.h>`
	`27`	`+`
`26`	`28`	`static u32`
`27`	`29`	`gm107_fuse_read(struct nvkm_fuse *fuse, u32 addr)`
`28`	`30`	`{`
`@@ -39,5 +41,8 @@ int`
`39`	`41`	`gm107_fuse_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,`
`40`	`42`	`struct nvkm_fuse **pfuse)`
`41`	`43`	`{`
	`44`	`+ if (nvkm_gsp_rm(device->gsp))`
	`45`	`+ return -ENODEV;`
	`46`	`+`
`42`	`47`	`return nvkm_fuse_new_(&gm107_fuse, device, type, inst, pfuse);`
`43`	`48`	`}`