From: Ben Skeggs bskeggs@redhat.com
[ Upstream commit 0689ea432a85ad1a108f47c3d90b6feae322c7f9 ]
Turns out caller isn't zero-initialised after-all.
Fixes: 49b2dfc08182 ("drm/nouveau/ga102-: support ttm buffer moves via copy engine") Reported-by: Karol Herbst kherbst@redhat.com Signed-off-by: Ben Skeggs bskeggs@redhat.com Reviewed-by: Karol Herbst kherbst@redhat.com Signed-off-by: Karol Herbst kherbst@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20210921090735.247236-1-skeggs... Signed-off-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nvkm/engine/fifo/ga102.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/ga102.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/ga102.c index f897bef13acf..c630dbd2911a 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/ga102.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/ga102.c @@ -179,6 +179,9 @@ ga102_chan_new(struct nvkm_device *device, return -ENODEV;
chan->ctrl.chan = nvkm_rd32(device, chan->ctrl.runl + 0x004) & 0xfffffff0; + + args->chid = 0; + args->inst = 0; args->token = nvkm_rd32(device, chan->ctrl.runl + 0x008) & 0xffff0000;
ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000, true, &chan->mthd);