When dma page is setup, warn if we try to point the entries to a uninitialized (zero) dma address. Like we do with gen6 Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 23f5896..78bfb88 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -427,6 +427,8 @@ static void gen8_initialize_pt(struct i915_address_space *vm, { gen8_pte_t scratch_pte; + WARN_ON(px_dma(vm->scratch_page) == 0); + scratch_pte = gen8_pte_encode(px_dma(vm->scratch_page), I915_CACHE_LLC, true); @@ -488,6 +490,8 @@ static void gen8_initialize_pd(struct i915_address_space *vm, { gen8_pde_t scratch_pde; + WARN_ON(px_dma(vm->scratch_pt) == 0); + scratch_pde = gen8_pde_encode(px_dma(vm->scratch_pt), I915_CACHE_LLC); fill_px(vm->dev, pd, scratch_pde); -- 2.1.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx