added stuff

nyx/hosts/enyo/kernel/config/amd.nix

@@ -0,0 +1,33 @@
+{lib, ...}: let
+  inherit (lib.kernel) yes no;
+  inherit (lib.attrsets) mapAttrs;
+  inherit (lib.modules) mkForce;
+in {
+  boot.kernelPatches = [
+    {
+      # recompile with AMD platform specific optimizations
+      name = "amd-platform-patches";
+      patch = null; # no patch is needed, just apply the options
+      extraStructuredConfig = mapAttrs (_: mkForce) {
+        # enable compiler optimizations for AMD
+        MNATIVE_AMD = yes;
+        X86_USE_PPRO_CHECKSUM = yes;
+        X86_AMD_PSTATE = yes;
+
+        X86_EXTENDED_PLATFORM = no; # disable support for other x86 platforms
+        X86_MCE_INTEL = no; # disable support for intel mce
+
+        # multigen LRU
+        LRU_GEN = yes;
+        LRU_GEN_ENABLED = yes;
+
+        # collect CPU frequency statistics
+        CPU_FREQ_STAT = yes;
+
+        # Optimized for performance
+        # this is already set on the Xanmod kernel
+        # CC_OPTIMIZE_FOR_PERFORMANCE_O3 = yes;
+      };
+    }
+  ];
+}