diff options
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_ct.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_ct.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_submit.c | 3 |
4 files changed, 21 insertions, 2 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c index 084cbdeba8ea..e1362e608146 100644 --- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c +++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c @@ -138,6 +138,14 @@ void xe_gt_tlb_invalidation_reset(struct xe_gt *gt) int pending_seqno; /* + * we can get here before the CTs are even initialized if we're wedging + * very early, in which case there are not going to be any pending + * fences so we can bail immediately. + */ + if (!xe_guc_ct_initialized(>->uc.guc.ct)) + return; + + /* * CT channel is already disabled at this point. No new TLB requests can * appear. */ diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c index 2447de0ebedf..d0ac48d8f4f7 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.c +++ b/drivers/gpu/drm/xe/xe_guc_ct.c @@ -514,6 +514,9 @@ void xe_guc_ct_disable(struct xe_guc_ct *ct) */ void xe_guc_ct_stop(struct xe_guc_ct *ct) { + if (!xe_guc_ct_initialized(ct)) + return; + xe_guc_ct_set_state(ct, XE_GUC_CT_STATE_STOPPED); stop_g2h_handler(ct); } @@ -760,7 +763,7 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u16 seqno; int ret; - xe_gt_assert(gt, ct->state != XE_GUC_CT_STATE_NOT_INITIALIZED); + xe_gt_assert(gt, xe_guc_ct_initialized(ct)); xe_gt_assert(gt, !g2h_len || !g2h_fence); xe_gt_assert(gt, !num_g2h || !g2h_fence); xe_gt_assert(gt, !g2h_len || num_g2h); @@ -1344,7 +1347,7 @@ static int g2h_read(struct xe_guc_ct *ct, u32 *msg, bool fast_path) u32 action; u32 *hxg; - xe_gt_assert(gt, ct->state != XE_GUC_CT_STATE_NOT_INITIALIZED); + xe_gt_assert(gt, xe_guc_ct_initialized(ct)); lockdep_assert_held(&ct->fast_lock); if (ct->state == XE_GUC_CT_STATE_DISABLED) diff --git a/drivers/gpu/drm/xe/xe_guc_ct.h b/drivers/gpu/drm/xe/xe_guc_ct.h index 82c4ae458dda..582aac106469 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.h +++ b/drivers/gpu/drm/xe/xe_guc_ct.h @@ -22,6 +22,11 @@ void xe_guc_ct_snapshot_print(struct xe_guc_ct_snapshot *snapshot, struct drm_pr void xe_guc_ct_snapshot_free(struct xe_guc_ct_snapshot *snapshot); void xe_guc_ct_print(struct xe_guc_ct *ct, struct drm_printer *p, bool want_ctb); +static inline bool xe_guc_ct_initialized(struct xe_guc_ct *ct) +{ + return ct->state != XE_GUC_CT_STATE_NOT_INITIALIZED; +} + static inline bool xe_guc_ct_enabled(struct xe_guc_ct *ct) { return ct->state == XE_GUC_CT_STATE_ENABLED; diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c index 6d84a52b660a..9567f6700cf2 100644 --- a/drivers/gpu/drm/xe/xe_guc_submit.c +++ b/drivers/gpu/drm/xe/xe_guc_submit.c @@ -1762,6 +1762,9 @@ int xe_guc_submit_reset_prepare(struct xe_guc *guc) { int ret; + if (!guc->submission_state.initialized) + return 0; + /* * Using an atomic here rather than submission_state.lock as this * function can be called while holding the CT lock (engine reset |