16k

overlays/linux-cachyos/default.nix

@@ -43,6 +43,9 @@ in
     # Latest Server
     linuxPackages_cachyos-server-lto = cachyosPackages.cachyos-server-lto;
     linuxPackages_cachyos-server-lto-znver4 = cachyosPackages.cachyos-server-lto-znver4;
+
+    linuxPackages_cachyos-server-lto-16k = cachyosPackages.cachyos-server-lto-16k;
+    
     # RC
     linuxPackages_cachyos-rc-lto = cachyosPackages.cachyos-rc-lto;
     linuxPackages_cachyos-rc-lto-znver4 = cachyosPackages.cachyos-rc-lto-znver4;

packages/linux-cachyos/default.nix

@@ -339,6 +339,18 @@ in
     }
   );
 
+  # Server LTO
+  cachyos-server-lto-16k = mkCachyKernel (
+    ltoKernelAttrs
+    // serverAttrs
+    // {
+      taste = "linux-cachyos-server";
+      pname = "cachyos-server-lto";
+      configPath = ./config-nix/${arch}-linux/cachyos-server-lto-16k.${arch}-linux.nix;
+      pageSize = "16k";
+    }
+  );
+
   # Server LTO Zen Version 4
   cachyos-server-lto-znver4 = mkCachyKernel (
     serverLtoKernelAttrs

packages/linux-cachyos/packages-for.nix

@@ -29,6 +29,7 @@
   withNTSync ? true,
   withHDR ? true,
   withoutDebug ? false,
+  pageSize ? "4k",
   description ? "Linux EEVDF-BORE scheduler Kernel by CachyOS with other patches and improvements",
   # For flakes
   inputs ? { },
@@ -84,6 +85,7 @@ let
       withoutDebug
       description
       withUpdateScript
+      pageSize
       ;
   };
 

packages/linux-cachyos/prepare.nix

@@ -112,7 +112,8 @@ let
     ++ damonConfig
     ++ ntSyncConfig
     ++ hdrConfig
-    ++ disableDebug;
+    ++ disableDebug
+    ++ pageSizeConfig;
 
   # _cachy_config, defaults to "y"
   basicCachyConfig = lib.optional cachyConfig.basicCachy "-e CACHY";
@@ -270,6 +271,17 @@ let
     else
       throw "Unsupported cachyos _hugepage";
 
+  pageSizeConfig = 
+    if cachyConfig.pageSize == "16k" then
+      [
+        "-d CONFIG_ARM64_4K_PAGES"
+        "-e CONFIG_ARM64_16K_PAGES"
+      ]
+    else if cachyConfig.pageSize == "4k" then
+      [ ]
+    else
+      throw "Unsupported cachyos _hugepage";
+
   # _damon, defaults to empty
   damonConfig = lib.optionals cachyConfig.withDAMON [
     "-e DAMON"