From 35e121af43f13619b5cde8c0b0436b4de21256d9 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 16 Jun 2020 15:26:20 +1000
Subject: drm/nouveau/pmu/gm200-: explicitly handle nofw
Git-commit: 38fd546beb48afdefdcec2ce2c0e5beda71400a3
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c | 10 +++++++++-
 drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c |  3 ++-
 drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c |  2 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c |  3 ++-
 drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h  |  1 +
 5 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
index 97b3acdf9157..383376addb41 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
@@ -30,9 +30,17 @@ gm200_pmu = {
 	.reset = gf100_pmu_reset,
 };
 
+
+int
+gm200_pmu_nofw(struct nvkm_pmu *pmu, int ver, const struct nvkm_pmu_fwif *fwif)
+{
+	nvkm_warn(&pmu->subdev, "firmware unavailable\n");
+	return 0;
+}
+
 static const struct nvkm_pmu_fwif
 gm200_pmu_fwif[] = {
-	{ -1, gf100_pmu_nofw, &gm200_pmu },
+	{ -1, gm200_pmu_nofw, &gm200_pmu },
 	{}
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
index cf91fd322c98..8f6ed5373ea1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
@@ -234,7 +234,8 @@ gm20b_pmu_load(struct nvkm_pmu *pmu, int ver, const struct nvkm_pmu_fwif *fwif)
 
 static const struct nvkm_pmu_fwif
 gm20b_pmu_fwif[] = {
-	{ 0, gm20b_pmu_load, &gm20b_pmu, &gm20b_pmu_acr },
+	{  0, gm20b_pmu_load, &gm20b_pmu, &gm20b_pmu_acr },
+	{ -1, gm200_pmu_nofw, &gm20b_pmu },
 	{}
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
index 262b8a3dd507..3d8ce14dba7b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
@@ -46,7 +46,7 @@ gp102_pmu = {
 
 static const struct nvkm_pmu_fwif
 gp102_pmu_fwif[] = {
-	{ -1, gf100_pmu_nofw, &gp102_pmu },
+	{ -1, gm200_pmu_nofw, &gp102_pmu },
 	{}
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
index 9a4aca2ad831..9c237c426599 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
@@ -93,7 +93,8 @@ MODULE_FIRMWARE("nvidia/gp10b/pmu/sig.bin");
 
 static const struct nvkm_pmu_fwif
 gp10b_pmu_fwif[] = {
-	{ 0, gm20b_pmu_load, &gp10b_pmu, &gp10b_pmu_acr },
+	{  0, gm20b_pmu_load, &gp10b_pmu, &gp10b_pmu_acr },
+	{ -1, gm200_pmu_nofw, &gp10b_pmu },
 	{}
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
index f470859244de..276b6d778e53 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
@@ -59,6 +59,7 @@ struct nvkm_pmu_fwif {
 };
 
 int gf100_pmu_nofw(struct nvkm_pmu *, int, const struct nvkm_pmu_fwif *);
+int gm200_pmu_nofw(struct nvkm_pmu *, int, const struct nvkm_pmu_fwif *);
 int gm20b_pmu_load(struct nvkm_pmu *, int, const struct nvkm_pmu_fwif *);
 
 int nvkm_pmu_ctor(const struct nvkm_pmu_fwif *, struct nvkm_device *,
-- 
2.29.2