drm/xe/fbdev: print info about stolen memory preference for fbdev

If stolen memory cannot be allocated for the fbdev and initial plane
bo because of the preference for fbc, have an info about that in
the log.

v2: log text changed

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Acked-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patch.msgid.link/20260220170908.201422-6-vinod.govindapillai@intel.com

diff --git a/drivers/gpu/drm/xe/display/intel_fbdev_fb.c b/drivers/gpu/drm/xe/display/intel_fbdev_fb.c
index 4673614cd22449627252aa430745695912229139..87af5646c938a1e9a93d04d67a6f641b0e2304d5 100644 (file)
--- a/drivers/gpu/drm/xe/display/intel_fbdev_fb.c
+++ b/drivers/gpu/drm/xe/display/intel_fbdev_fb.c
@@ -63,6 +63,8 @@ struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size
                        drm_info(&xe->drm, "Allocated fbdev into stolen\n");
                else
                        drm_info(&xe->drm, "Allocated fbdev into stolen failed: %li\n", PTR_ERR(obj));
+       } else {
+               drm_info(&xe->drm, "Allocating fbdev: Stolen memory not preferred.\n");
        }
 
        if (IS_ERR(obj)) {

diff --git a/drivers/gpu/drm/xe/display/xe_initial_plane.c b/drivers/gpu/drm/xe/display/xe_initial_plane.c
index 13fdc51f8f5054813629d1f585acea9f33e5306e..c46e9d8115bd885b1f5c3feab2e529d841cf1805 100644 (file)
--- a/drivers/gpu/drm/xe/display/xe_initial_plane.c
+++ b/drivers/gpu/drm/xe/display/xe_initial_plane.c
@@ -92,8 +92,10 @@ initial_plane_bo(struct xe_device *xe,
                flags |= XE_BO_FLAG_STOLEN;
 
                if (IS_ENABLED(CONFIG_FRAMEBUFFER_CONSOLE) &&
-                   !intel_fbdev_fb_prefer_stolen(&xe->drm, plane_config->size))
+                   !intel_fbdev_fb_prefer_stolen(&xe->drm, plane_config->size)) {
+                       drm_info(&xe->drm, "Initial FB size exceeds half of stolen, discarding\n");
                        return NULL;
+               }
        }
 
        size = round_up(plane_config->base + plane_config->size,