Added cpu_governor role

roles/cpu_governor/tasks/main.yml

@@ -0,0 +1,80 @@
+- name: Install build and runtime prerequisites
+  become: true
+  community.general.pacman:
+    name:
+      - git
+      - python-pipx
+    state: present
+
+- name: Check whether bc250-apply is already installed
+  ansible.builtin.command:
+    argv:
+      - which
+      - bc250-apply
+  register: bc250_apply
+  changed_when: false
+  failed_when: false
+
+- name: Install bc250_smu_oc
+  when: bc250_apply.rc != 0
+  block:
+    - name: Create temporary dir for the checkout
+      ansible.builtin.tempfile:
+        state: directory
+        suffix: smuoc
+      register: smu_tmp
+
+    - name: Clone bc250_smu_oc
+      ansible.builtin.git:
+        repo: https://github.com/bc250-collective/bc250_smu_oc.git
+        dest: "{{ smu_tmp.path }}/bc250_smu_oc"
+        version: main
+
+    # pipx keeps this out of the system python environment.
+    - name: Install the CLI system-wide
+      become: true
+      ansible.builtin.command:
+        argv:
+          - pipx
+          - install
+          - --global
+          - "{{ smu_tmp.path }}/bc250_smu_oc"
+
+  always:
+    - name: Remove temporary directory
+      become: true
+      ansible.builtin.file:
+        path: "{{ smu_tmp.path }}"
+        state: absent
+      when: smu_tmp.path is defined
+
+- name: Create the config directory
+  become: true
+  ansible.builtin.file:
+    path: /etc/bc250
+    state: directory
+    mode: '0755'
+
+- name: Deploy the overclock profile
+  become: true
+  ansible.builtin.template:
+    src: overclock.conf.j2
+    dest: /etc/bc250/overclock.conf
+    mode: '0644'
+  register: oc_conf
+
+- name: Install the overclock service
+  become: true
+  ansible.builtin.command:
+    argv:
+      - bc250-apply
+      - --install
+      - /etc/bc250/overclock.conf
+  when: oc_conf.changed
+
+- name: Enable the overclock service at boot
+  become: true
+  ansible.builtin.systemd_service:
+    name: bc250-smu-oc
+    enabled: true
+    state: started

roles/cpu_governor/templates/overclock.conf.j2

@@ -0,0 +1,4 @@
+[overclock]
+frequency = 3500
+scale = -30
+max_temperature = 85