From: Mohammed Khajapasha <mohammed.khajapasha@xxxxxxxxx>
Return EREMOTE value when frame buffer object is not backed by LMEM
for discrete. If Local memory is supported by hardware the framebuffer
backing gem objects should be from local memory.
Signed-off-by: Mohammed Khajapasha <mohammed.khajapasha@xxxxxxxxx>
Cc: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
Cc: Animesh Manna <animesh.manna@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 8a7945f55278..95ed1e06ea55 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -18054,11 +18054,20 @@ intel_user_framebuffer_create(struct drm_device *dev,
struct drm_framebuffer *fb;
struct drm_i915_gem_object *obj;
struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd;
+ struct drm_i915_private *i915;
obj = i915_gem_object_lookup(filp, mode_cmd.handles[0]);
if (!obj)
return ERR_PTR(-ENOENT);
+ /* object is backed with LMEM for discrete */
+ i915 = to_i915(obj->base.dev);
+ if (HAS_LMEM(i915) && !i915_gem_object_is_lmem(obj)) {
+ /* object is "remote", not in local memory */
+ i915_gem_object_put(obj);
+ return ERR_PTR(-EREMOTE);
+ }
+
fb = intel_framebuffer_create(obj, &mode_cmd);
i915_gem_object_put(obj);
--
2.26.2
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