---
# tasks file for tuned_amdgpu
#
- name: Gather package facts
  ansible.builtin.package_facts:
    manager: auto

# note: power-profiles-daemon conflicts with tuned
# since F35 it must be removed so tuned may be installed
- name: Replace 'power-profiles-daemon' with 'tuned' on Fedora 35+
  ansible.builtin.package: # use with_items/pkg since 'dnf' module in Ansible doesn't support 'swap'
    name: "{{ item.name }}"
    state: "{{ item.state }}"
  with_items:
    - {name: 'power-profiles-daemon', state: 'absent'}
    - {name: 'tuned', state: 'present'}
  when:
    - ('power-profiles-daemon' in ansible_facts.packages) or ('tuned' not in ansible_facts.packages)
    - ansible_distribution == 'Fedora'
    - ansible_distribution_major_version|int > 35
  register: fed_ppdtuned_swap
  become: true

- name: Install tuned
  ansible.builtin.package:
    name: tuned
    state: present
  when: (fed_ppdtuned_swap is not defined) or ('tuned' not in ansible_facts.packages)
  become: true

- name: Determine GPU device in drm subsystem
  ansible.builtin.shell:
    cmd: grep -ls ^connected /sys/class/drm/*/status | grep -o card[0-9] | sort | uniq | sort -h | tail -1
    executable: /bin/bash
  changed_when: false
  register: card

- name: Find hwmon/max power capability file for {{ card.stdout }}
  ansible.builtin.find:
    paths: /sys/class/drm/{{ card.stdout }}/device/hwmon
    file_type: file
    recurse: true
    use_regex: true
    patterns:
      - '^power1_cap_max$'
  register: hwmon

- name: Find hwmon/current power limit file for {{ card.stdout }}
  ansible.builtin.find:
    paths: /sys/class/drm/{{ card.stdout }}/device/hwmon
    file_type: file
    recurse: true
    use_regex: true
    patterns:
      - '^power1_cap$'
  register: powercap_set

- name: Get max power capability for {{ card.stdout }}
  ansible.builtin.slurp:
    src: "{{ hwmon.files.0.path }}"
  register: power_max_b64

- name: Create custom profile directories
  ansible.builtin.file:
    state: directory
    path: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0.key }}
    mode: "0755"
  with_nested:
    - "{{ lookup('dict', amdgpu_profiles) }}"
    - "{{ base_profiles }}"
  become: true

- name: Template AMDGPU control/reset scripts
  ansible.builtin.template:
    src: templates/amdgpu-clock.sh.j2
    dest: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0.key }}/amdgpu-clock.sh
    owner: root
    group: root
    mode: "0755"
  with_nested:
    - "{{ lookup('dict', amdgpu_profiles) }}"
    - "{{ base_profiles }}"
  notify: Restart tuned
  become: true

- name: Template custom tuned profiles
  ansible.builtin.template:
    src: templates/tuned.conf.j2
    dest: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0.key }}/tuned.conf
    owner: root
    group: root
    mode: "0644"
  with_nested:
    - "{{ lookup('dict', amdgpu_profiles) }}"
    - "{{ base_profiles }}"
  notify: Restart tuned
  become: true

- name: Ensure tuned is enabled
  ansible.builtin.service:
    name: tuned
    enabled: true
  become: true