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| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2025-03-03 20:35:21 +0300 |
|---|---|---|
| committer | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2025-03-12 13:37:52 +0300 |
| commit | c19e705ec9815896abed94b929a843a0b3010651 (patch) | |
| tree | 6518ecb7128326bd90a43da2c936b0f1af74a12d | |
| parent | f2f90989ccff2d010472d47e4e62f7afe8ce67ff (diff) | |
| download | linux-c19e705ec9815896abed94b929a843a0b3010651.tar.xz | |
drm/xe/vf: Stop applying save-restore MMIOs if VF
Currently we are blocking processing of all save-restore rules
by the VFs inside the xe_rtp_process_to_sr() function, but we
want to unblock that to allow processing of the LRC WA rules.
To avoid hitting WARNs about reading an inaccessible registers by
the VFs, stop applying save-restore MMIOs action if VF, without
relying that SR list will be always empty for the VF.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250303173522.1822-5-michal.wajdeczko@intel.com
| -rw-r--r-- | drivers/gpu/drm/xe/xe_reg_sr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_reg_sr.c b/drivers/gpu/drm/xe/xe_reg_sr.c index 9475e3f74958..fc8447a838c4 100644 --- a/drivers/gpu/drm/xe/xe_reg_sr.c +++ b/drivers/gpu/drm/xe/xe_reg_sr.c @@ -173,6 +173,9 @@ void xe_reg_sr_apply_mmio(struct xe_reg_sr *sr, struct xe_gt *gt) if (xa_empty(&sr->xa)) return; + if (IS_SRIOV_VF(gt_to_xe(gt))) + return; + xe_gt_dbg(gt, "Applying %s save-restore MMIOs\n", sr->name); fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL); |