From 7a1af0f8bb0c8ba2a3a97f8a82f782549b3116df Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Mon, 7 Aug 2017 13:27:31 +1000
Subject: [PATCH] drm/nouveau/fb/gf100-: zero mmu debug buffers
Git-commit: 7a1af0f8bb0c8ba2a3a97f8a82f782549b3116df
Patch-mainline: v4.14-rc1
References: bsc#1095094

These are used for accesses to sparse mappings, and we want reads of
such mappings to return 0.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
@@ -60,12 +60,12 @@ gf100_fb_oneinit(struct nvkm_fb *base)
 	size = min(size, 0x1000);
 
 	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000,
-			      false, &fb->base.mmu_rd);
+			      true, &fb->base.mmu_rd);
 	if (ret)
 		return ret;
 
 	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000,
-			      false, &fb->base.mmu_wr);
+			      true, &fb->base.mmu_wr);
 	if (ret)
 		return ret;