From fae361230f98bcfc6650de9c4e3be214c9a74835 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 19 Sep 2023 06:21:11 +1000
Subject: drm/nouveau/bar/tu102-: prepare for GSP-RM
Git-commit: 45655ff0848040f09e4a4f812fe4aa79e1363624
Patch-mainline: v6.7-rc1
References: jsc#PED-3527 jsc#PED-5475 jsc#PED-6068 jsc#PED-6070 jsc#PED-6116 jsc#PED-6120 jsc#PED-5065 jsc#PED-5477 jsc#PED-5511 jsc#PED-6041 jsc#PED-6069 jsc#PED-6071
- (temporarily) disable if GSP-RM detected, will be added later
- move BAR2 teardown from dtor(), it doesn't belong there
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-7-skeggsb@gmail.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c | 10 +++++++++-
drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu102.c | 4 ++++
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c
index d017a1b5e5dd..91bc53be97ff 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/base.c
@@ -93,8 +93,16 @@ static int
nvkm_bar_fini(struct nvkm_subdev *subdev, bool suspend)
{
struct nvkm_bar *bar = nvkm_bar(subdev);
+
+ if (!subdev->use.enabled)
+ return 0;
+
if (bar->func->bar1.fini)
bar->func->bar1.fini(bar);
+
+ if (!suspend) /* Handled by instmem. */
+ nvkm_bar_bar2_fini(subdev->device);
+
return 0;
}
@@ -120,7 +128,7 @@ static void *
nvkm_bar_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_bar *bar = nvkm_bar(subdev);
- nvkm_bar_bar2_fini(subdev->device);
+
return bar->func->dtor(bar);
}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu102.c
index c25ab407b85d..8041bb632835 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/tu102.c
@@ -22,6 +22,7 @@
#include "gf100.h"
#include <core/memory.h>
+#include <subdev/gsp.h>
#include <subdev/timer.h>
static void
@@ -95,5 +96,8 @@ int
tu102_bar_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_bar **pbar)
{
+ if (nvkm_gsp_rm(device->gsp))
+ return -ENODEV;
+
return gf100_bar_new_(&tu102_bar, device, type, inst, pbar);
}
--
2.43.0