Just like we do for internal objects. Also just use
i915_gem_object_set_cache_coherency() here. No need for over-flushing on
LLC platforms.
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index 41d0680f3bd7..b2003133deaf 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -136,6 +136,8 @@ static void put_huge_pages(struct drm_i915_gem_object *obj,
huge_pages_free_pages(pages);
obj->mm.dirty = false;
+
+ __start_cpu_write(obj);
}
static const struct drm_i915_gem_object_ops huge_page_ops = {
@@ -152,6 +154,7 @@ huge_pages_object(struct drm_i915_private *i915,
{
static struct lock_class_key lock_class;
struct drm_i915_gem_object *obj;
+ unsigned int cache_level;
GEM_BUG_ON(!size);
GEM_BUG_ON(!IS_ALIGNED(size, BIT(__ffs(page_mask))));
@@ -173,7 +176,9 @@ huge_pages_object(struct drm_i915_private *i915,
obj->write_domain = I915_GEM_DOMAIN_CPU;
obj->read_domains = I915_GEM_DOMAIN_CPU;
- obj->cache_level = I915_CACHE_NONE;
+
+ cache_level = HAS_LLC(i915) ? I915_CACHE_LLC : I915_CACHE_NONE;
+ i915_gem_object_set_cache_coherency(obj, cache_level);
obj->mm.page_mask = page_mask;
--
2.26.3
