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

- (temporarily) disable if GSP-RM detected, will be added later
- pass "suspend" flag down to chipset-specific DISP code

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-25-skeggsb@gmail.com

Author: Ben Skeggs

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

@@ -105,7 +105,7 @@ nvkm_disp_fini(struct nvkm_engine *engine, bool suspend)
 	struct nvkm_outp *outp;
 
 	if (disp->func->fini)
-		disp->func->fini(disp);
+		disp->func->fini(disp, suspend);
 
 	list_for_each_entry(outp, &disp->outps, head) {
 		if (outp->func->fini)
@@ -208,6 +208,9 @@ nvkm_disp_dtor(struct nvkm_engine *engine)
 		nvkm_head_del(&head);
 	}
 
+	if (disp->func->dtor)
+		disp->func->dtor(disp);
+
 	return data;
 }
 

drivers/gpu/drm/nouveau/nvkm/engine/disp/ga102.c

@@ -24,6 +24,7 @@
 #include "head.h"
 #include "ior.h"
 
+#include <subdev/gsp.h>
 #include <subdev/timer.h>
 
 #include <nvif/class.h>
@@ -147,5 +148,8 @@ int
 ga102_disp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	       struct nvkm_disp **pdisp)
 {
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
 	return nvkm_disp_new_(&ga102_disp, device, type, inst, pdisp);
 }

drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c

@@ -1154,7 +1154,7 @@ gf119_disp_intr(struct nvkm_disp *disp)
 }
 
 void
-gf119_disp_fini(struct nvkm_disp *disp)
+gf119_disp_fini(struct nvkm_disp *disp, bool suspend)
 {
 	struct nvkm_device *device = disp->engine.subdev.device;
 	/* disable all interrupts */

drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c

@@ -1115,7 +1115,7 @@ gv100_disp_intr(struct nvkm_disp *disp)
 }
 
 void
-gv100_disp_fini(struct nvkm_disp *disp)
+gv100_disp_fini(struct nvkm_disp *disp, bool suspend)
 {
 	struct nvkm_device *device = disp->engine.subdev.device;
 	nvkm_wr32(device, 0x611db0, 0x00000000);

drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c

@@ -1504,7 +1504,7 @@ nv50_disp_intr(struct nvkm_disp *disp)
 }
 
 void
-nv50_disp_fini(struct nvkm_disp *disp)
+nv50_disp_fini(struct nvkm_disp *disp, bool suspend)
 {
 	struct nvkm_device *device = disp->engine.subdev.device;
 	/* disable all interrupts */

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

@@ -15,9 +15,10 @@ int nvkm_disp_new_(const struct nvkm_disp_func *, struct nvkm_device *, enum nvk
 void nvkm_disp_vblank(struct nvkm_disp *, int head);
 
 struct nvkm_disp_func {
+	void (*dtor)(struct nvkm_disp *);
 	int (*oneinit)(struct nvkm_disp *);
 	int (*init)(struct nvkm_disp *);
-	void (*fini)(struct nvkm_disp *);
+	void (*fini)(struct nvkm_disp *, bool suspend);
 	void (*intr)(struct nvkm_disp *);
 	void (*intr_error)(struct nvkm_disp *, int chid);
 
@@ -32,7 +33,7 @@ struct nvkm_disp_func {
 
 	u16 ramht_size;
 
-	const struct nvkm_sclass root;
+	struct nvkm_sclass root;
 
 	struct nvkm_disp_user {
 		struct nvkm_sclass base;
@@ -44,7 +45,7 @@ struct nvkm_disp_func {
 
 int nv50_disp_oneinit(struct nvkm_disp *);
 int nv50_disp_init(struct nvkm_disp *);
-void nv50_disp_fini(struct nvkm_disp *);
+void nv50_disp_fini(struct nvkm_disp *, bool suspend);
 void nv50_disp_intr(struct nvkm_disp *);
 extern const struct nvkm_enum nv50_disp_intr_error_type[];
 void nv50_disp_super(struct work_struct *);
@@ -56,12 +57,12 @@ void nv50_disp_super_2_2(struct nvkm_disp *, struct nvkm_head *);
 void nv50_disp_super_3_0(struct nvkm_disp *, struct nvkm_head *);
 
 int gf119_disp_init(struct nvkm_disp *);
-void gf119_disp_fini(struct nvkm_disp *);
+void gf119_disp_fini(struct nvkm_disp *, bool suspend);
 void gf119_disp_intr(struct nvkm_disp *);
 void gf119_disp_super(struct work_struct *);
 void gf119_disp_intr_error(struct nvkm_disp *, int);
 
-void gv100_disp_fini(struct nvkm_disp *);
+void gv100_disp_fini(struct nvkm_disp *, bool suspend);
 void gv100_disp_intr(struct nvkm_disp *);
 void gv100_disp_super(struct work_struct *);
 int gv100_disp_wndw_cnt(struct nvkm_disp *, unsigned long *);

drivers/gpu/drm/nouveau/nvkm/engine/disp/tu102.c

@@ -25,6 +25,7 @@
 #include "ior.h"
 
 #include <core/gpuobj.h>
+#include <subdev/gsp.h>
 #include <subdev/timer.h>
 
 #include <nvif/class.h>
@@ -233,5 +234,8 @@ int
 tu102_disp_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 	       struct nvkm_disp **pdisp)
 {
+	if (nvkm_gsp_rm(device->gsp))
+		return -ENODEV;
+
 	return nvkm_disp_new_(&tu102_disp, device, type, inst, pdisp);
 }