[PATCH 3/3] drm/xe/display: Do not allocate into stolen for new framebuffers.

[Maarten Lankhorst <dev@lankhorst.se>]

Prefer to use system memory for global framebuffers, and reserve
the space for FBC use only.

Now that multiple CRTC's can use FBC's, the simple heuristic
of using less than half of stolen is no longer sufficient.

Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/7513
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
---
 drivers/gpu/drm/xe/display/xe_display_bo.c | 33 ++++------------------
 1 file changed, 6 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/xe/display/xe_display_bo.c b/drivers/gpu/drm/xe/display/xe_display_bo.c
index 677ae3af9ac0c..04d4204b37a53 100644
--- a/drivers/gpu/drm/xe/display/xe_display_bo.c
+++ b/drivers/gpu/drm/xe/display/xe_display_bo.c
@@ -154,33 +154,12 @@ static struct drm_gem_object *xe_display_bo_fbdev_create(struct drm_device *drm,
 	struct xe_device *xe = to_xe_device(drm);
 	struct xe_bo *obj;
 
-	obj = ERR_PTR(-ENODEV);
-
-	if (xe_display_bo_fbdev_prefer_stolen(xe, size)) {
-		obj = xe_bo_create_pin_map_novm(xe, xe_device_get_root_tile(xe),
-						size,
-						ttm_bo_type_kernel,
-						XE_BO_FLAG_FORCE_WC |
-						XE_BO_FLAG_STOLEN |
-						XE_BO_FLAG_GGTT,
-						false);
-		if (!IS_ERR(obj))
-			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)) {
-		obj = xe_bo_create_pin_map_novm(xe, xe_device_get_root_tile(xe), size,
-						ttm_bo_type_kernel,
-						XE_BO_FLAG_FORCE_WC |
-						XE_BO_FLAG_VRAM_IF_DGFX(xe_device_get_root_tile(xe)) |
-						XE_BO_FLAG_GGTT,
-						false);
-	}
-
+	obj = xe_bo_create_pin_map_novm(xe, xe_device_get_root_tile(xe), size,
+					ttm_bo_type_kernel,
+					XE_BO_FLAG_FORCE_WC |
+					XE_BO_FLAG_VRAM_IF_DGFX(xe_device_get_root_tile(xe)) |
+					XE_BO_FLAG_GGTT,
+					false);
 	if (IS_ERR(obj)) {
 		drm_err(&xe->drm, "failed to allocate framebuffer (%pe)\n", obj);
 		return ERR_PTR(-ENOMEM);
-- 
2.53.0