From: Mohammed Khajapasha mohammed.khajapasha@intel.com
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@intel.com Cc: Michael J. Ruhl michael.j.ruhl@intel.com Cc: Animesh Manna animesh.manna@intel.com --- 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);