41 lines
1.5 KiB
Nix
41 lines
1.5 KiB
Nix
{ lib, linuxKernel, linuxPackagesFor, writeText, buildPackages, fetchurl, fetchFromGitHub, raspberrypifw, ... }: rec {
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kernel = linuxKernel.kernels.linux_rpi4.override {
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argsOverride = rec {
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modDirVersion = "6.1.54-rt15";
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version = "${modDirVersion}-notag";
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src = fetchFromGitHub {
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owner = "raspberrypi";
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repo = "linux";
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rev = "cc08810f89e52337a99cc6ae5f53f08588357c5f";
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sha256 = "";
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};
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kernelPatches = [{
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name = "rt";
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patch = fetchurl {
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url = "https://cdn.kernel.org/pub/linux/kernel/projects/rt/6.1/patch-6.1.54-rt15.patch.xz";
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sha256 = "";
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};
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}] ++ linuxKernel.kernels.linux_rpi4.kernelPatches;
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structuredExtraConfig = with lib.kernel; {
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#KVM = lib.mkForce no; # Not compatible with PREEMPT_RT. NOTE: this conflict shoulb be fixed in 5.16
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PREEMPT_RT = yes;
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EXPERT = yes; # PREEMPT_RT depends on it (in kernel/Kconfig.preempt)
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PREEMPT_VOLUNTARY = lib.mkForce no; # PREEMPT_RT deselects it.
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RT_GROUP_SCHED = lib.mkForce (option no); # Removed by sched-disable-rt-group-sched-on-rt.patch.
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} // linuxKernel.kernels.linux_rpi4.structuredExtraConfig;
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};
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};
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linuxPackages = (linuxPackagesFor kernel);
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firmware = raspberrypifw.overrideAttrs (old: rec {
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version = "notag";
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src = fetchFromGitHub {
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owner = "raspberrypi";
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repo = "firmware";
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rev = "6b37a457122714aa14b2c7df0926455173fd04f1";
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sha256 = "";
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};
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});
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}
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