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Message-ID: <20230820222920.2344-1-dakr@redhat.com>
Date:   Mon, 21 Aug 2023 00:29:16 +0200
From:   Danilo Krummrich <dakr@...hat.com>
To:     airlied@...il.com, daniel@...ll.ch, bskeggs@...hat.com,
        kherbst@...hat.com, lyude@...hat.com
Cc:     dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Danilo Krummrich <dakr@...hat.com>
Subject: [PATCH drm-misc-next] drm/nouveau: uvmm: fix unset region pointer on remap

Transfer the region pointer of a uvma to the new uvma(s) on re-map to
prevent potential shader faults when the re-mapped uvma(s) are unmapped.

Signed-off-by: Danilo Krummrich <dakr@...hat.com>
---
 drivers/gpu/drm/nouveau/nouveau_uvmm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
index 3a1e8538f205..aae780e4a4aa 100644
--- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
@@ -639,6 +639,7 @@ nouveau_uvmm_sm_prepare(struct nouveau_uvmm *uvmm,
 			struct drm_gpuva *va = r->unmap->va;
 			struct uvmm_map_args remap_args = {
 				.kind = uvma_from_va(va)->kind,
+				.region = uvma_from_va(va)->region,
 			};
 			u64 ustart = va->va.addr;
 			u64 urange = va->va.range;

base-commit: 25205087df1ffe06ccea9302944ed1f77dc68c6f
-- 
2.41.0

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