[PATCH 01/60] drm/nouveau/gsp: fix rm shutdown wait condition

[Ben Skeggs]

Though the initial upstreamed GSP-RM version in nouveau was 535.113.01,
the code was developed against earlier versions.

535.42.02 modified the mailbox value used by GSP-RM to signal shutdown
has completed, which was missed at the time.

I'm not aware of any issues caused by this, but noticed the bug while
working on GB20x support.

Signed-off-by: Ben Skeggs <bskeggs at nvidia.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
index 969f6b921fdb..64b58efd3132 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
@@ -2844,7 +2844,7 @@ r535_gsp_fini(struct nvkm_gsp *gsp, bool suspend)
 		return ret;
 
 	nvkm_msec(gsp->subdev.device, 2000,
-		if (nvkm_falcon_rd32(&gsp->falcon, 0x040) & 0x80000000)
+		if (nvkm_falcon_rd32(&gsp->falcon, 0x040) == 0x80000000)
 			break;
 	);
 
-- 
2.49.0