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Using VM's dma reservation object for > lrc->bo doesn't provide any advantage. Hence do not pass VM > while creating lrc->bo. > > Fixes: 264eecdba211 ("drm/xe: Decouple xe_exec_queue and xe_lrc") > Signed-off-by: Niranjana Vishwanathapura Good cleanup. I thought this through and can't reason why this would work or any advantages of the LRC using VM's dma-resv. One nit, xe_lrc_finish can use xe_bo_unpin_map_no_vm on lrc->bo now. Asssuming CI passes and the above nit fixed: Reviewed-by: Matthew Brost > --- > drivers/gpu/drm/xe/xe_exec_queue.c | 9 --------- > drivers/gpu/drm/xe/xe_lrc.c | 18 +++--------------- > 2 files changed, 3 insertions(+), 24 deletions(-) > > diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c > index ce78cee5dec6..32c6923df7c3 100644 > --- a/drivers/gpu/drm/xe/xe_exec_queue.c > +++ b/drivers/gpu/drm/xe/xe_exec_queue.c > @@ -132,12 +132,6 @@ static int __xe_exec_queue_init(struct xe_exec_queue *q) > flags |= XE_LRC_CREATE_RUNALONE; > } > > - if (vm) { > - err = xe_vm_lock(vm, true); > - if (err) > - return err; > - } > - > for (i = 0; i < q->width; ++i) { > q->lrc[i] = xe_lrc_create(q->hwe, q->vm, SZ_16K, q->msix_vec, flags); > if (IS_ERR(q->lrc[i])) { > @@ -146,9 +140,6 @@ static int __xe_exec_queue_init(struct xe_exec_queue *q) > } > } > > - if (vm) > - xe_vm_unlock(vm); > - > err = q->ops->init(q); > if (err) > goto err_lrc; > diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c > index 61a2e87990a9..974fe509df0e 100644 > --- a/drivers/gpu/drm/xe/xe_lrc.c > +++ b/drivers/gpu/drm/xe/xe_lrc.c > @@ -1007,7 +1007,7 @@ static int xe_lrc_init(struct xe_lrc *lrc, struct xe_hw_engine *hwe, > * FIXME: Perma-pinning LRC as we don't yet support moving GGTT address > * via VM bind calls. > */ > - lrc->bo = xe_bo_create_pin_map(xe, tile, vm, lrc_size, > + lrc->bo = xe_bo_create_pin_map(xe, tile, NULL, lrc_size, > ttm_bo_type_kernel, > bo_flags); > if (IS_ERR(lrc->bo)) > @@ -1795,9 +1795,6 @@ struct xe_lrc_snapshot *xe_lrc_snapshot_capture(struct xe_lrc *lrc) > if (!snapshot) > return NULL; > > - if (lrc->bo->vm) > - xe_vm_get(lrc->bo->vm); > - > snapshot->context_desc = xe_lrc_ggtt_addr(lrc); > snapshot->ring_addr = __xe_lrc_ring_ggtt_addr(lrc); > snapshot->indirect_context_desc = xe_lrc_indirect_ring_ggtt_addr(lrc); > @@ -1819,14 +1816,12 @@ struct xe_lrc_snapshot *xe_lrc_snapshot_capture(struct xe_lrc *lrc) > void xe_lrc_snapshot_capture_delayed(struct xe_lrc_snapshot *snapshot) > { > struct xe_bo *bo; > - struct xe_vm *vm; > struct iosys_map src; > > if (!snapshot) > return; > > bo = snapshot->lrc_bo; > - vm = bo->vm; > snapshot->lrc_bo = NULL; > > snapshot->lrc_snapshot = kvmalloc(snapshot->lrc_size, GFP_KERNEL); > @@ -1846,8 +1841,6 @@ void xe_lrc_snapshot_capture_delayed(struct xe_lrc_snapshot *snapshot) > xe_bo_unlock(bo); > put_bo: > xe_bo_put(bo); > - if (vm) > - xe_vm_put(vm); > } > > void xe_lrc_snapshot_print(struct xe_lrc_snapshot *snapshot, struct drm_printer *p) > @@ -1900,14 +1893,9 @@ void xe_lrc_snapshot_free(struct xe_lrc_snapshot *snapshot) > return; > > kvfree(snapshot->lrc_snapshot); > - if (snapshot->lrc_bo) { > - struct xe_vm *vm; > - > - vm = snapshot->lrc_bo->vm; > + if (snapshot->lrc_bo) > xe_bo_put(snapshot->lrc_bo); > - if (vm) > - xe_vm_put(vm); > - } > + > kfree(snapshot); > } > > -- > 2.43.0 >