From 7a3ac3aeae380c5ada29f11cc3c718478da4a864 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Mon, 6 Sep 2021 10:56:28 +1000
Subject: drm/nouveau/kms/tu102-: delay enabling cursor until after
 assign_windows
Git-commit: f732e2e34aa08493fdd762f3daa4e5f16bbf1e45
Patch-mainline: v5.15-rc5
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

Prevent NVD core channel error code 67 occuring and hanging display,
managed to reproduce on GA102 while testing suspend/resume scenarios.

Required extension of earlier commit to fix interactions with EFI.

Fixes: e78b1b545c6c ("drm/nouveau/kms/nv50: workaround EFI GOP window channel format differences")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: <stable@vger.kernel.org> # v5.12+
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210906005628.11499-2-skeggsb@gmail.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/nouveau/dispnv50/head.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c b/drivers/gpu/drm/nouveau/dispnv50/head.c
index d66f97280282..72099d1e4816 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
@@ -52,6 +52,7 @@ nv50_head_flush_clr(struct nv50_head *head,
 void
 nv50_head_flush_set_wndw(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
+	if (asyh->set.curs   ) head->func->curs_set(head, asyh);
 	if (asyh->set.olut   ) {
 		asyh->olut.offset = nv50_lut_load(&head->olut,
 						  asyh->olut.buffer,
@@ -67,7 +68,6 @@ nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 	if (asyh->set.view   ) head->func->view    (head, asyh);
 	if (asyh->set.mode   ) head->func->mode    (head, asyh);
 	if (asyh->set.core   ) head->func->core_set(head, asyh);
-	if (asyh->set.curs   ) head->func->curs_set(head, asyh);
 	if (asyh->set.base   ) head->func->base    (head, asyh);
 	if (asyh->set.ovly   ) head->func->ovly    (head, asyh);
 	if (asyh->set.dither ) head->func->dither  (head, asyh);
-- 
2.38.1