[PATCH] drm/xe: Bump xe_device_l2_flush even higher

[Maarten Lankhorst <dev@lankhorst.se>]

It turns out for some applications 1 ms is not enough, and 2 ms is
needed.

Failing to flush causes a catastrophic display update failure,
so we should prevent it if possible.

Add an even bigger margin of 5 ms, and complain loudly if we ever exceed
it.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6097
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
---
 drivers/gpu/drm/xe/xe_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 6f8f72fd1b133..d812d2cbba896 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -1073,8 +1073,8 @@ 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, 1000, NULL, true))
-		xe_gt_err_once(gt, "Global invalidation timeout\n");
+	if (xe_mmio_wait32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1, 0x0, 5000, NULL, true))
+		xe_gt_err(gt, "Global invalidation timeout\n");
 
 	spin_unlock(&gt->global_invl_lock);
 
-- 
2.50.1