diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 0d514ff9b94c..496916298e8a 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -68,10 +68,19 @@ static inline gen8_gtt_pte_t gen8_pte_encode(dma_addr_t addr, { gen8_gtt_pte_t pte = valid ? _PAGE_PRESENT | _PAGE_RW : 0; pte |= addr; - if (level != I915_CACHE_NONE) - pte |= PPAT_CACHED_INDEX; - else + + switch (level) { + case I915_CACHE_NONE: pte |= PPAT_UNCACHED_INDEX; + break; + case I915_CACHE_WT: + pte |= PPAT_DISPLAY_ELLC_INDEX; + break; + default: + pte |= PPAT_CACHED_INDEX; + break; + } + return pte; } @@ -1368,7 +1377,7 @@ static void gen8_ggtt_insert_entries(struct i915_address_space *vm, (gen8_gtt_pte_t __iomem *)dev_priv->gtt.gsm + first_entry; int i = 0; struct sg_page_iter sg_iter; - dma_addr_t addr; + dma_addr_t addr = 0; for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) { addr = sg_dma_address(sg_iter.sg) + |