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[Hardware/AMD] Automatically use amd_pstate=active|guided on kernels supporting it

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This commit is contained in:
Antoine Viallon 2023-05-27 17:47:39 +02:00
parent 30d825feba
commit c2ece764da
Signed by: aviallon
GPG key ID: 186FC35EDEB25716
1 changed files with 9 additions and 1 deletions
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10
hardware/amd/cpu.nix
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@ -3,6 +3,7 @@ with lib;
let let
generalCfg = config.aviallon.general; generalCfg = config.aviallon.general;
cpuIsZen = ! isNull (builtins.match "znver[0-9]" generalCfg.cpu.arch); cpuIsZen = ! isNull (builtins.match "znver[0-9]" generalCfg.cpu.arch);
kernelVersion = getVersion config.boot.kernelPackages.kernel;
in { in {
config = mkIf (generalCfg.cpu.vendor == "amd") { config = mkIf (generalCfg.cpu.vendor == "amd") {
boot.kernel.sysctl = { boot.kernel.sysctl = {
@ -13,7 +14,14 @@ in {
}; };
aviallon.boot.cmdline = { aviallon.boot.cmdline = {
"amd_pstate" = "passive"; "amd_pstate" =
if versionAtLeast kernelVersion "6.4" then
"guided"
else if versionAtLeast kernelVersion "6.3" then
"active"
else
"passive"
;
} // optionalAttrs (generalCfg.cpu.arch == "znver2") { } // optionalAttrs (generalCfg.cpu.arch == "znver2") {
# Required for Zen 2 # Required for Zen 2
"amd_pstate.shared_memory" = 1; "amd_pstate.shared_memory" = 1;