[Intel-gfx] [PATCH v2 09/12] drm/i915/selftests: ensure we reserve a fence slot

[Matthew Auld]

We should always be explicit and allocate a fence slot before adding a
new fence.

Signed-off-by: Matthew Auld <matthew.a...@intel.com>
Cc: Thomas Hellström <thomas.hellst...@linux.intel.com>
Cc: Lionel Landwerlin <lionel.g.landwer...@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com>
Cc: Jon Bloomfield <jon.bloomfi...@intel.com>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Jordan Justen <jordan.l.jus...@intel.com>
Cc: Kenneth Graunke <kenn...@whitecape.org>
Cc: Akeem G Abodunrin <akeem.g.abodun...@intel.com>
---
 drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c 
b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 5bc93a1ce3e3..7c95b6768610 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -1221,8 +1221,10 @@ static int __igt_mmap_migrate(struct intel_memory_region 
**placements,
                                          expand32(POISON_INUSE), &rq);
        i915_gem_object_unpin_pages(obj);
        if (rq) {
-               dma_resv_add_fence(obj->base.resv, &rq->fence,
-                                  DMA_RESV_USAGE_KERNEL);
+               err = dma_resv_reserve_fences(obj->base.resv, 1);
+               if (!err)
+                       dma_resv_add_fence(obj->base.resv, &rq->fence,
+                                          DMA_RESV_USAGE_KERNEL);
                i915_request_put(rq);
        }
        i915_gem_object_unlock(obj);
-- 
2.36.1