diff --git a/systems/x86_64-linux/halo/hardware-configuration.nix b/systems/x86_64-linux/halo/hardware-configuration.nix
index 16d059a..175e8eb 100644
--- a/systems/x86_64-linux/halo/hardware-configuration.nix
+++ b/systems/x86_64-linux/halo/hardware-configuration.nix
@@ -31,8 +31,10 @@
     "quiet"
     "splash"
     "video=efifb:nobgrt"
-    "ttm.pages_limit=31457280"
-    "ttm.page_pool_size=31457280"
+    "amdgpu.gttsize=126976"
+    "iommu=pt"
+    "ttm.pages_limit=32505856"
+    "amdgpu.cwsr_enable=0"
   ];
 
   fileSystems."/" = {