drm/i915/selftests: Add the usual batch vma managements to st_workarounds

To properly handle asynchronous migration of batch objects, we need to
couple the fences on the incoming batch into the request and should not
assume that they always start idle.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826072149.9447-1-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
index d06d68a..999a98f 100644 (file)
--- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
@@ -565,6 +565,14 @@ static int check_dirty_whitelist(struct i915_gem_context *ctx,
                                goto err_request;
                }
 
+               i915_vma_lock(batch);
+               err = i915_request_await_object(rq, batch->obj, false);
+               if (err == 0)
+                       err = i915_vma_move_to_active(batch, rq, 0);
+               i915_vma_unlock(batch);
+               if (err)
+                       goto err_request;
+
                err = engine->emit_bb_start(rq,
                                            batch->node.start, PAGE_SIZE,
                                            0);
@@ -850,6 +858,14 @@ static int scrub_whitelisted_registers(struct i915_gem_context *ctx,
                        goto err_request;
        }
 
+       i915_vma_lock(batch);
+       err = i915_request_await_object(rq, batch->obj, false);
+       if (err == 0)
+               err = i915_vma_move_to_active(batch, rq, 0);
+       i915_vma_unlock(batch);
+       if (err)
+               goto err_request;
+
        /* Perform the writes from an unprivileged "user" batch */
        err = engine->emit_bb_start(rq, batch->node.start, 0, 0);