[PATCH v7 11/14] drm/amdgpu: keeping waiting userq fence infinitely

[Prike Liang]

Keeping waiting the userq fence infinitely untill
hang detection, and then suspend the hang queue and
set the fence error.

Signed-off-by: Prike Liang <Prike.Liang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
index 693130bff339..7d685f3867b1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
@@ -281,7 +281,7 @@ amdgpu_userq_map_helper(struct amdgpu_userq_mgr *uq_mgr,
 	return r;
 }
 
-static void
+static int
 amdgpu_userq_wait_for_last_fence(struct amdgpu_userq_mgr *uq_mgr,
 				 struct amdgpu_usermode_queue *queue)
 {
@@ -289,11 +289,16 @@ amdgpu_userq_wait_for_last_fence(struct amdgpu_userq_mgr *uq_mgr,
 	int ret;
 
 	if (f && !dma_fence_is_signaled(f)) {
-		ret = dma_fence_wait_timeout(f, true, msecs_to_jiffies(100));
-		if (ret <= 0)
+		ret = dma_fence_wait_timeout(f, true, MAX_SCHEDULE_TIMEOUT);
+		if (ret <= 0) {
 			drm_file_err(uq_mgr->file, "Timed out waiting for fence=%llu:%llu\n",
 				     f->context, f->seqno);
+			queue->state = AMDGPU_USERQ_STATE_HUNG;
+			return -ETIME;
+		}
 	}
+
+	return ret;
 }
 
 static void
-- 
2.34.1