If Local memory is supported by hardware, we want framebuffer backing
gem objects from local memory.
if the backing obj is not from LMEM, pin_to_display is failed.
v2:
memory regions are correctly assigned to obj->memory_regions [tvrtko]
migration failure is reported as debug log [Tvrtko]
v3:
Migration is dropped. only error is reported [Daniel]
mem region check is move to pin_to_display [Chris]
v4:
s/dev_priv/i915 [chris]
v5:
i915_gem_object_is_lmem is used for detecting the obj mem type. [Matt]
cc: Matthew Auld <matthew.a...@intel.com>
Signed-off-by: Ramalingam C <ramalinga...@intel.com>
---
drivers/gpu/drm/i915/gem/i915_gem_domain.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_domain.c
b/drivers/gpu/drm/i915/gem/i915_gem_domain.c
index 9937b4c341f1..b6b5c4348396 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_domain.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_domain.c
@@ -12,6 +12,7 @@
#include "i915_gem_ioctls.h"
#include "i915_gem_object.h"
#include "i915_vma.h"
+#include "i915_gem_lmem.h"
static void __i915_gem_object_flush_for_display(struct drm_i915_gem_object
*obj)
{
@@ -419,11 +420,19 @@ i915_gem_object_pin_to_display_plane(struct
drm_i915_gem_object *obj,
const struct i915_ggtt_view *view,
unsigned int flags)
{
+ struct drm_i915_private *i915 = to_i915(obj->base.dev);
struct i915_vma *vma;
int ret;
assert_object_held(obj);
+ /* GEM Obj for frame buffer is expected to be in LMEM. */
+ if (HAS_LMEM(i915))
+ if (!i915_gem_object_is_lmem(obj)) {
+ DRM_DEBUG_KMS("OBJ is not from LMEM\n");
+ return ERR_PTR(-EINVAL);
+ }
+
/*
* The display engine is not coherent with the LLC cache on gen6. As
* a result, we make sure that the pinning that is about to occur is
--
2.20.1
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