pp_table/
pp_table.rs

1use libdrm_amdgpu_sys::*;
2use AMDGPU::{IpHwId, HwId};
3use std::fs::File;
4
5fn main() {
6    let libdrm_amdgpu = LibDrmAmdgpu::new().unwrap();
7    let device_path = std::env::var("AMDGPU_PATH").unwrap_or("/dev/dri/renderD128".to_string());
8    let (amdgpu_dev, _, _) = {
9        use std::os::fd::IntoRawFd;
10
11        let f = File::open(device_path).unwrap();
12
13        libdrm_amdgpu.init_device_handle(f.into_raw_fd()).unwrap()
14    };
15
16    let sysfs = amdgpu_dev.get_sysfs_path().unwrap();
17    let smu = IpHwId::get_from_die_id_sysfs(HwId::MP1, &sysfs.join("ip_discovery/die/0/")).ok().and_then(|smu| smu.instances.get(0).map(|v| v.clone()));
18
19    if let Some(smu) = &smu {
20        println!("SMU (MP1) version: {}.{}.{}", smu.major, smu.minor, smu.revision);
21    }
22
23    let pp_table_bytes_sysfs = std::fs::read(&sysfs.join("pp_table")).ok();
24    let pp_table_bytes_vbios = amdgpu_dev.get_vbios_image().ok().and_then(|vbios_image| {
25        use AMDGPU::VBIOS::VbiosParser;
26
27        let vbios_parser = VbiosParser::new(vbios_image);
28        let rom_header = vbios_parser.get_atom_rom_header()?;
29        let data_table = vbios_parser.get_atom_data_table(&rom_header)?;
30
31        Some(vbios_parser.get_powerplay_table_bytes(&data_table)?.to_vec())
32    });
33
34    for (bytes, src) in [
35        (pp_table_bytes_sysfs, "sysfs"),
36        (pp_table_bytes_vbios, "VBIOS"),
37    ] {
38        let Some(bytes) = bytes else { continue };
39        let pp_table = if let Some(smu) = &smu {
40            AMDGPU::PPTable::decode_with_smu_version(&bytes, smu.version())
41        } else {
42            AMDGPU::PPTable::decode(&bytes)
43        };
44
45        println!("from {src}: {pp_table:#?}");
46    }
47}
pp_table/pp_table.rs

pp_table/
pp_table.rs
