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Merge pull request #296867 from NixOS/why-is-there-a-bike-shed-in-the-hole

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kernel/common-config: enable a whole bunch of stuff
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K900 2024-03-20 09:26:03 +03:00 committed by GitHub
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1 changed files with 163 additions and 10 deletions
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173
pkgs/os-specific/linux/kernel/common-config.nix
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@ -62,10 +62,26 @@ let
SUNRPC_DEBUG = yes;
# Provide access to tunables like sched_migration_cost_ns
SCHED_DEBUG = yes;
# Count IRQ and steal CPU time separately
IRQ_TIME_ACCOUNTING = yes;
PARAVIRT_TIME_ACCOUNTING = yes;
# Enable CPU lockup detection
LOCKUP_DETECTOR = yes;
SOFTLOCKUP_DETECTOR = yes;
HARDLOCKUP_DETECTOR = yes;
# Enable streaming logs to a remote device over a network
NETCONSOLE = module;
NETCONSOLE_DYNAMIC = yes;
# Export known printks in debugfs
PRINTK_INDEX = whenAtLeast "5.15" yes;
};
power-management = {
CPU_FREQ_DEFAULT_GOV_PERFORMANCE = yes;
CPU_FREQ_DEFAULT_GOV_SCHEDUTIL = yes;
CPU_FREQ_GOV_SCHEDUTIL = yes;
PM_ADVANCED_DEBUG = yes;
PM_WAKELOCKS = yes;
@ -85,6 +101,30 @@ let
# depends on HAVE_VIRT_CPU_ACCOUNTING_GEN depends on 64BIT,
# so we can't force-enable this
RCU_LAZY = whenAtLeast "6.2" (option yes);
# Auto suspend Bluetooth devices at idle
BT_HCIBTUSB_AUTOSUSPEND = yes;
# Expose cpufreq stats in sysfs
CPU_FREQ_STAT = yes;
# Enable CPU energy model for scheduling
ENERGY_MODEL = whenAtLeast "5.0" yes;
# Enable scheduling stats collection
SCHEDSTATS = yes;
# Enable thermal interface netlink API
THERMAL_NETLINK = whenAtLeast "5.9" yes;
# Prefer power-efficient workqueue implementation to per-CPU workqueues,
# which is slightly slower, but improves battery life.
# This is opt-in per workqueue, and can be disabled globally with a kernel command line option.
WQ_POWER_EFFICIENT_DEFAULT = yes;
# Default SATA link power management to "medium with device initiated PM"
# for some extra power savings.
SATA_MOBILE_LPM_POLICY = whenAtLeast "5.18" (freeform "3");
} // optionalAttrs (stdenv.hostPlatform.isx86) {
INTEL_IDLE = yes;
INTEL_RAPL = whenAtLeast "5.3" module;
@ -109,6 +149,9 @@ let
CHT_DC_TI_PMIC_OPREGION = whenAtLeast "5.10" yes;
MFD_TPS68470 = whenBetween "5.10" "5.13" yes;
TPS68470_PMIC_OPREGION = whenAtLeast "5.10" yes;
# Enable Intel thermal hardware feedback
INTEL_HFI_THERMAL = whenAtLeast "5.18" yes;
};
external-firmware = {
@ -136,6 +179,16 @@ let
DAMON_DBGFS = whenAtLeast "5.15" yes;
DAMON_RECLAIM = whenAtLeast "5.16" yes;
DAMON_LRU_SORT = whenAtLeast "6.0" yes;
# Support recovering from memory failures on systems with ECC and MCA recovery.
MEMORY_FAILURE = yes;
# Collect ECC errors and retire pages that fail too often
RAS_CEC = yes;
} // optionalAttrs (stdenv.is32bit) {
# Enable access to the full memory range (aka PAE) on 32-bit architectures
# This check isn't super accurate but it's close enough
HIGHMEM = option yes;
BOUNCE = option yes;
};
memtest = {
@ -154,6 +207,9 @@ let
BFQ_GROUP_IOSCHED = yes;
MQ_IOSCHED_KYBER = yes;
IOSCHED_BFQ = module;
# Enable CPU utilization clamping for RT tasks
UCLAMP_TASK = whenAtLeast "5.3" yes;
UCLAMP_TASK_GROUP = whenAtLeast "5.4" yes;
};
@ -166,6 +222,7 @@ let
# Enable NUMA.
numa = {
NUMA = option yes;
NUMA_BALANCING = option yes;
};
networking = {
@ -250,6 +307,9 @@ let
# Bridge Netfilter Configuration
NF_TABLES_BRIDGE = mkMerge [ (whenOlder "5.3" yes)
(whenAtLeast "5.3" module) ];
# Expose some debug info
NF_CONNTRACK_PROCFS = yes;
NF_FLOW_TABLE_PROCFS = whenAtLeast "6.0" yes;
# needed for `dropwatch`
# Builtin-only since https://github.com/torvalds/linux/commit/f4b6bcc7002f0e3a3428bac33cf1945abff95450
@ -276,6 +336,10 @@ let
INFINIBAND = module;
INFINIBAND_IPOIB = module;
INFINIBAND_IPOIB_CM = yes;
# Enable debugfs for wireless drivers
CFG80211_DEBUGFS = yes;
MAC80211_DEBUGFS = yes;
} // optionalAttrs (stdenv.hostPlatform.system == "aarch64-linux") {
# Not enabled by default, hides modules behind it
NET_VENDOR_MEDIATEK = yes;
@ -288,8 +352,8 @@ let
CFG80211_WEXT = option yes; # Without it, ipw2200 drivers don't build
IPW2100_MONITOR = option yes; # support promiscuous mode
IPW2200_MONITOR = option yes; # support promiscuous mode
HOSTAP_FIRMWARE = option yes; # Support downloading firmware images with Host AP driver
HOSTAP_FIRMWARE_NVRAM = option yes;
HOSTAP_FIRMWARE = whenOlder "6.8" (option yes); # Support downloading firmware images with Host AP driver
HOSTAP_FIRMWARE_NVRAM = whenOlder "6.8" (option yes);
MAC80211_MESH = option yes; # Enable 802.11s (mesh networking) support
ATH9K_PCI = option yes; # Detect Atheros AR9xxx cards on PCI(e) bus
ATH9K_AHB = option yes; # Ditto, AHB bus
@ -345,8 +409,12 @@ let
FONT_TER16x32 = whenAtLeast "5.0" yes;
};
video = {
video = let
whenHasDevicePrivate = mkIf (!stdenv.isx86_32 && versionAtLeast version "5.1");
in {
DRM_LEGACY = whenOlder "6.8" no;
DRM_SIMPLEDRM = yes;
NOUVEAU_LEGACY_CTX_SUPPORT = whenBetween "5.2" "6.3" no;
# Allow specifying custom EDID on the kernel command line
@ -371,8 +439,25 @@ let
DRM_AMD_DC_FP = whenAtLeast "6.4" yes;
DRM_AMD_DC_HDCP = whenBetween "5.5" "6.4" yes;
DRM_AMD_DC_SI = whenAtLeast "5.10" yes;
# Enable AMD Audio Coprocessor support for HDMI outputs
DRM_AMD_ACP = yes;
# Enable AMD secure display when available
DRM_AMD_SECURE_DISPLAY = whenAtLeast "5.13" yes;
# Enable new firmware (and by extension NVK) for compatible hardware on Nouveau
DRM_NOUVEAU_GSP_DEFAULT = whenAtLeast "6.8" yes;
# Enable Nouveau shared virtual memory (used by OpenCL)
DEVICE_PRIVATE = whenHasDevicePrivate yes;
DRM_NOUVEAU_SVM = whenHasDevicePrivate yes;
# Enable HDMI-CEC receiver support
MEDIA_CEC_RC = whenAtLeast "5.10" yes;
# Enable CEC over DisplayPort
DRM_DP_CEC = yes;
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") {
# Intel GVT-g graphics virtualization supports 64-bit only
DRM_I915_GVT = yes;
@ -409,6 +494,7 @@ let
SND_HDA_CODEC_CA0132_DSP = whenOlder "5.7" yes; # Enable DSP firmware loading on Creative Soundblaster Z/Zx/ZxR/Recon
SND_OSSEMUL = yes;
SND_USB_CAIAQ_INPUT = yes;
SND_USB_AUDIO_MIDI_V2 = whenAtLeast "6.5" yes;
# Enable Sound Open Firmware support
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" &&
versionAtLeast version "5.5") {
@ -445,14 +531,23 @@ let
SND_SOC_SOF_TIGERLAKE_SUPPORT = whenOlder "5.12" yes;
};
usb-serial = {
USB_SERIAL_GENERIC = yes; # USB Generic Serial Driver
};
usb = {
USB = yes; # compile USB core into kernel, so we can use USB_SERIAL_CONSOLE before modules
USB_EHCI_ROOT_HUB_TT = yes; # Root Hub Transaction Translators
USB_EHCI_TT_NEWSCHED = yes; # Improved transaction translator scheduling
USB_HIDDEV = yes; # USB Raw HID Devices (like monitor controls and Uninterruptable Power Supplies)
# default to dual role mode
USB_DWC2_DUAL_ROLE = yes;
USB_DWC3_DUAL_ROLE = yes;
};
usb-serial = {
USB_SERIAL = yes;
USB_SERIAL_GENERIC = yes; # USB Generic Serial Driver
USB_SERIAL_CONSOLE = yes; # Allow using USB serial adapter as console
U_SERIAL_CONSOLE = whenAtLeast "5.10" yes; # Allow using USB gadget as console
};
# Filesystem options - in particular, enable extended attributes and
@ -533,6 +628,7 @@ let
SQUASHFS_FILE_DIRECT = yes;
SQUASHFS_DECOMP_MULTI_PERCPU = whenOlder "6.2" yes;
SQUASHFS_CHOICE_DECOMP_BY_MOUNT = whenAtLeast "6.2" yes;
SQUASHFS_XATTR = yes;
SQUASHFS_ZLIB = yes;
SQUASHFS_LZO = yes;
@ -598,6 +694,16 @@ let
CRYPTO_DRBG_HASH = yes;
CRYPTO_DRBG_CTR = yes;
# Enable KFENCE
# See: https://docs.kernel.org/dev-tools/kfence.html
KFENCE = whenAtLeast "5.12" yes;
# Enable support for page poisoning. Still needs to be enabled on the command line to actually work.
PAGE_POISONING = yes;
# Enable stack smashing protections in schedule()
# See: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.8&id=0d9e26329b0c9263d4d9e0422d80a0e73268c52f
SCHED_STACK_END_CHECK = yes;
} // optionalAttrs stdenv.hostPlatform.isx86_64 {
# Enable Intel SGX
X86_SGX = whenAtLeast "5.11" yes;
@ -614,6 +720,9 @@ let
SEV_GUEST = whenAtLeast "5.19" module;
# Shadow stacks
X86_USER_SHADOW_STACK = whenAtLeast "6.6" yes;
# Mitigate straight line speculation at the cost of some file size
SLS = whenAtLeast "5.17" yes;
};
microcode = {
@ -791,6 +900,10 @@ let
# Unconditionally enabled, because it is required for CRIU and
# it provides the kcmp() system call that Mesa depends on.
CHECKPOINT_RESTORE = yes;
# Allows soft-dirty tracking on pages, used by CRIU.
# See https://docs.kernel.org/admin-guide/mm/soft-dirty.html
MEM_SOFT_DIRTY = mkIf (!stdenv.isx86_32) yes;
};
misc = let
@ -805,6 +918,9 @@ let
# enabled by default in x86_64 but not arm64, so we do that here
HIDRAW = yes;
# Enable loading HID fixups as eBPF from userspace
HID_BPF = whenAtLeast "6.3" yes;
HID_ACRUX_FF = yes;
DRAGONRISE_FF = yes;
GREENASIA_FF = yes;
@ -832,7 +948,10 @@ let
# Enable initrd support.
BLK_DEV_INITRD = yes;
PM_TRACE_RTC = no; # Disable some expensive (?) features.
# Allows debugging systems that get stuck during suspend/resume
PM_TRACE = yes;
PM_TRACE_RTC = yes;
ACCESSIBILITY = yes; # Accessibility support
AUXDISPLAY = yes; # Auxiliary Display support
HIPPI = yes;
@ -857,6 +976,11 @@ let
BLK_SED_OPAL = yes;
# Enable support for block layer inline encryption
BLK_INLINE_ENCRYPTION = whenAtLeast "5.8" yes;
# ...but fall back to CPU encryption if unavailable
BLK_INLINE_ENCRYPTION_FALLBACK = whenAtLeast "5.8" yes;
BSD_PROCESS_ACCT_V3 = yes;
SERIAL_DEV_BUS = yes; # enables support for serial devices
@ -971,7 +1095,7 @@ let
# Disable the firmware helper fallback, udev doesn't implement it any more
FW_LOADER_USER_HELPER_FALLBACK = option no;
FW_LOADER_COMPRESS = option yes;
FW_LOADER_COMPRESS = whenAtLeast "5.3" yes;
HOTPLUG_PCI_ACPI = yes; # PCI hotplug using ACPI
HOTPLUG_PCI_PCIE = yes; # PCI-Expresscard hotplug support
@ -1018,6 +1142,13 @@ let
# Set system time from RTC on startup and resume
RTC_HCTOSYS = option yes;
# Expose watchdog information in sysfs
WATCHDOG_SYSFS = yes;
# Enable generic kernel watch queues
# See https://docs.kernel.org/core-api/watch_queue.html
WATCH_QUEUE = whenAtLeast "5.8" yes;
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") {
# Enable CPU/memory hotplug support
# Allows you to dynamically add & remove CPUs/memory to a VM client running NixOS without requiring a reboot
@ -1048,6 +1179,10 @@ let
# https://github.com/torvalds/linux/blob/856deb866d16e29bd65952e0289066f6078af773/kernel/dma/contiguous.c#L35-L44
CMA_SIZE_MBYTES = freeform "32";
# Add debug interfaces for CMA
CMA_DEBUGFS = yes;
CMA_SYSFS = yes;
# Many ARM SBCs hand off a pre-configured framebuffer.
# This always can can be replaced by the actual native driver.
# Keeping it a built-in ensures it will be used if possible.
@ -1093,6 +1228,24 @@ let
} // optionalAttrs (versionAtLeast version "5.4" && stdenv.hostPlatform.system == "x86_64-linux") {
CHROMEOS_LAPTOP = module;
CHROMEOS_PSTORE = module;
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") {
# Enable x86 resource control
X86_CPU_RESCTRL = whenAtLeast "5.0" yes;
# Enable TSX on CPUs where it's not vulnerable
X86_INTEL_TSX_MODE_AUTO = yes;
# Enable AMD Wi-Fi RF band mitigations
# See https://cateee.net/lkddb/web-lkddb/AMD_WBRF.html
AMD_WBRF = whenAtLeast "6.8" yes;
# Enable Intel Turbo Boost Max 3.0
INTEL_TURBO_MAX_3 = yes;
};
accel = {
# Build DRM accelerator devices
DRM_ACCEL = whenAtLeast "6.2" yes;
};
};
in