diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c index e65e70efece7107371a41fa0e239a54154246fd1..6900acbb1381cb9b433d3321ba092cc32a67d26d 100644 --- a/drivers/gpu/drm/i915/display/intel_fb_pin.c +++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c @@ -50,7 +50,18 @@ intel_pin_fb_obj_dpt(struct drm_framebuffer *fb, continue; if (HAS_LMEM(dev_priv)) { - ret = i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM_0); + unsigned int flags = obj->flags; + + /* + * For this type of buffer we need to able to read from the CPU + * the clear color value found in the buffer, hence we need to + * ensure it is always in the mappable part of lmem, if this is + * a small-bar device. + */ + if (intel_fb_rc_ccs_cc_plane(fb) >= 0) + flags &= ~I915_BO_ALLOC_GPU_ONLY; + ret = __i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM_0, + flags); if (ret) continue; }