| #!/bin/sh |
| # |
| # Copyright 2019 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # Select dptf configuration based on the following criteria. |
| # - CPU model name |
| # - DRAM part number prefix |
| # - DRAM capacity |
| # |
| # Documentation: http://go/atlas-dptf-override |
| # |
| |
| dptf_get_override() { |
| local dram_part= |
| local cpu_model= |
| local memtotal_kib= |
| local memtotal_gib= |
| local dptf_file= |
| |
| cpu_model="$(uname -p | grep -o "[im][357]")" |
| dram_part="$(mosys memory spd print id -s part_number | grep -om1 ^..)" |
| memtotal_kib="$(grep '^MemTotal:' /proc/meminfo | grep -oE '[0-9]+')" |
| # Atlas should have even GiB of RAM. Round up to nearest even number. |
| memtotal_gib="$(( (((memtotal_kib >> 20) + 1) / 2) * 2 ))" |
| |
| cpu_dram="$(echo "${cpu_model}-${dram_part}-${memtotal_gib}")" |
| |
| case "${cpu_dram}" in |
| m3-K4-8) dptf_file="0987_8765.bin" ;; |
| m3-MT-8) dptf_file="1098_0987.bin" ;; |
| i5-K4-8) dptf_file="1098_9876.bin" ;; |
| i5-MT-8) dptf_file="1098_0987.bin" ;; |
| i5-K4-16) dptf_file="1098_0987.bin" ;; |
| i5-MT-16) dptf_file="1199_0886.bin" ;; |
| i7-K4-16) dptf_file="2200_0987.bin" ;; |
| i7-MT-16) dptf_file="1199_1098.bin" ;; |
| esac |
| |
| echo "${dptf_file}" |
| } |
