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drm/xe/vf: Reset TLB invalidations during VF post migration recovery

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TLB invalidations requests can be lost during VF post-migration
recovery. Since the VF has migrated, these invalidations are no longer
needed.

Reset the TLB invalidation frontend, which will signal all pending
fences.

v3:
 - Move TLB invalidation reset after pausing submission (Tomasz)
 - Adjust commit message (Michal)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Tomasz Lis <tomasz.lis@intel.com>
Link: https://lore.kernel.org/r/20251008214532.3442967-22-matthew.brost@intel.com
This commit is contained in:
Matthew Brost 2025-10-08 14:45:19 -07:00
parent 3061e8e0dd
commit 24687730cd
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/xe/xe_gt_sriov_vf.c
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@ -35,6 +35,7 @@
#include "xe_sriov.h"
#include "xe_sriov_vf.h"
#include "xe_tile_sriov_vf.h"
#include "xe_tlb_inval.h"
#include "xe_uc_fw.h"
#include "xe_wopcm.h"
@ -1107,6 +1108,7 @@ static void vf_post_migration_shutdown(struct xe_gt *gt)
xe_guc_ct_flush_and_stop(&gt->uc.guc.ct);
xe_guc_submit_pause(&gt->uc.guc);
xe_tlb_inval_reset(&gt->tlb_inval);
}
static size_t post_migration_scratch_size(struct xe_device *xe)