From 6a0fd03a23fd833c98277701bedb6e7f25df22bd Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 19 Sep 2023 06:21:12 +1000
Subject: [PATCH] drm/nouveau/bus/tu102-: prepare for GSP-RM
- disable BUS 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/20230918202149.4343-8-skeggsb@gmail.com
---
drivers/gpu/drm/nouveau/nvkm/subdev/bus/gf100.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/gf100.c
index 80b5aaceeaad1..8e1e0b057a0b4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/gf100.c
@@ -24,6 +24,8 @@
*/
#include "priv.h"
+#include <subdev/gsp.h>
+
static void
gf100_bus_intr(struct nvkm_bus *bus)
{
@@ -72,5 +74,8 @@ int
gf100_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_bus **pbus)
{
+ if (nvkm_gsp_rm(device->gsp))
+ return -ENODEV;
+
return nvkm_bus_new_(&gf100_bus, device, type, inst, pbus);
}
--
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