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drm/xe: Increase TDF timeout

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There are some corner cases where flushing transient
data may take slightly longer than the 150us timeout
we currently allow.  Update the driver to use a 300us
timeout instead based on the latest guidance from
the hardware team. An update to the bspec to formally
document this is expected to arrive soon.

Fixes: c01c6066e6 ("drm/xe/device: implement transient flush")
Signed-off-by: Jagmeet Randhawa <jagmeet.randhawa@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/0201b1d6ec64d3651fcbff1ea21026efa915126a.1765487866.git.jagmeet.randhawa@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit d69d3636f5)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
This commit is contained in:
Jagmeet Randhawa 2025-12-12 05:21:46 +08:00 committed by Thomas Hellström
parent c770467d28
commit eafb6f6209
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/xe/xe_device.c
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@ -1056,7 +1056,7 @@ static void tdf_request_sync(struct xe_device *xe)
* transient and need to be flushed..
*/
if (xe_mmio_wait32(&gt->mmio, XE2_TDF_CTRL, TRANSIENT_FLUSH_REQUEST, 0,
150, NULL, false))
300, NULL, false))
xe_gt_err_once(gt, "TD flush timeout\n");
xe_force_wake_put(gt_to_fw(gt), fw_ref);