Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm

[sfrench/cifs-2.6.git] / drivers / gpu / drm / i915 / gt / gen8_ppgtt.c

diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
index 077b8f7cf6cb24d2e3c2b29781ae4bc25e1318f8..4d1de2d97d5cf2b3268d46f5b7264761aec9874b 100644 (file)
--- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
@@ -379,6 +379,7 @@ gen8_ppgtt_insert_pte(struct i915_ppgtt *ppgtt,
        pd = i915_pd_entry(pdp, gen8_pd_index(idx, 2));
        vaddr = kmap_atomic_px(i915_pt_entry(pd, gen8_pd_index(idx, 1)));
        do {
+               GEM_BUG_ON(iter->sg->length < I915_GTT_PAGE_SIZE);
                vaddr[gen8_pd_index(idx, 0)] = pte_encode | iter->dma;
 
                iter->dma += I915_GTT_PAGE_SIZE;