[PATCH] drm/xe: Enlarge the invalidation timeout from 150 to 500

[Shuicheng Lin]

There is error message like below during stress test.
"[   31.004009] xe 0000:03:00.0: [drm] ERROR GT0: Global invalidation timeout"
And change the timeout value from 150 to 500, could help avoid
this error message in the stress test.
xe_mmio_wait32() is implemented as wait 10us at beginning, then
double the wait value as next wait until the timeout value is
reached. So for the normal case, the real wait time is not changed.
The larger timeout value should take effect for the bad case only.

Signed-off-by: Shuicheng Lin <shuicheng.lin at intel.com>
---
 drivers/gpu/drm/xe/xe_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index cd241a8e1838..60aebf7561ec 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -925,7 +925,7 @@ void xe_device_l2_flush(struct xe_device *xe)
 	spin_lock(&gt->global_invl_lock);
 	xe_mmio_write32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1);
 
-	if (xe_mmio_wait32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1, 0x0, 150, NULL, true))
+	if (xe_mmio_wait32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1, 0x0, 500, NULL, true))
 		xe_gt_err_once(gt, "Global invalidation timeout\n");
 	spin_unlock(&gt->global_invl_lock);
 
-- 
2.25.1