From ff2b70c8a1a4e5ed2435ec8be0b406ae1a79f253 Mon Sep 17 00:00:00 2001
From: Andreas Wiese <aw-nixos@meterriblecrew.net>
Date: Fri, 19 Mar 2021 00:39:45 +0100
Subject: [PATCH] ryzen_smu: init at 0.1.1

---
 default.nix                |  2 ++
 flake.nix                  |  1 +
 pkgs/ryzen_smu/default.nix | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 36 insertions(+)
 create mode 100644 pkgs/ryzen_smu/default.nix

diff --git a/default.nix b/default.nix
index 21940f4..8c5ea47 100644
--- a/default.nix
+++ b/default.nix
@@ -16,4 +16,6 @@ in rec {
 
   ryzenadj = callPackage ./pkgs/ryzenadj { };
 
+  ryzen_smu = callPackage ./pkgs/ryzen_smu { kernel = pkgs.linux; };
+
 }
diff --git a/flake.nix b/flake.nix
index 4e54a2b..952eb2c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -35,6 +35,7 @@
       } // prev.lib.optionalAttrs (prev.system == "x86_64-linux") {
         inherit (localPkgs)
           ryzenadj
+          ryzen_smu
           ;
       };
 
diff --git a/pkgs/ryzen_smu/default.nix b/pkgs/ryzen_smu/default.nix
new file mode 100644
index 0000000..8c3cddc
--- /dev/null
+++ b/pkgs/ryzen_smu/default.nix
@@ -0,0 +1,33 @@
+{ lib, fetchFromGitLab, kernel }:
+
+kernel.stdenv.mkDerivation rec {
+  pname = "ryzen_smu";
+  version = "0.1.1";
+
+  src = fetchFromGitLab {
+    owner = "leogx9r";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-1VxpJKKl/Og7Q6NpJ3Y+i8U9RKZkTCjv6LJzsLOC5vk=";
+  };
+
+  hardeningDisable = [ "pic" ];
+
+  nativeBuildInputs = kernel.moduleBuildDependencies;
+
+  makeFlags = [
+    "KERNEL_MODULES=${kernel.dev}/lib/modules/${kernel.modDirVersion}"
+  ];
+
+  installPhase = ''
+    install -D ryzen_smu.ko $out/lib/modules/${kernel.modDirVersion}/misc/ryzen_smu.ko
+  '';
+
+  meta = with lib; {
+    description = "A kernel driver exposing access to the SMU of certain AMD Ryzen processors";
+    homepage = src.meta.homepage;
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ aw ];
+    platforms = [ "x86_64-linux" ];
+  };
+}