From a7f3a51982be34270d9b10283f6d188bd54fc7a1 Mon Sep 17 00:00:00 2001 From: Tony Butler Date: Tue, 6 Dec 2022 16:39:27 -0800 Subject: [PATCH] kernel: add kmod-lib-842 "842" is a compression scheme and this is the software implementation which is too slow to really use beyond a proof of concept. It can be selected in ZRAM, ZSWAP, or `fs/pstore`, and is here for completeness. In general you need a Power8 or better with 842-in-hardware for it to be fast, but other 842-accelerators are emerging. Signed-off-by: Tony Butler --- package/kernel/linux/modules/lib.mk | 22 ++++++++++++++++++++++ target/linux/generic/config-5.15 | 1 + 2 files changed, 23 insertions(+) diff --git a/package/kernel/linux/modules/lib.mk b/package/kernel/linux/modules/lib.mk index d4d44ad8f0..299c5a8c35 100644 --- a/package/kernel/linux/modules/lib.mk +++ b/package/kernel/linux/modules/lib.mk @@ -170,6 +170,28 @@ endef $(eval $(call KernelPackage,lib-lz4)) +define KernelPackage/lib-842 + SUBMENU:=$(LIB_MENU) + TITLE:=842 support + DEPENDS:=+kmod-crypto-acompress +kmod-crypto-crc32 + KCONFIG:= \ + CONFIG_CRYPTO_842 \ + CONFIG_842_COMPRESS \ + CONFIG_842_DECOMPRESS + FILES:= \ + $(LINUX_DIR)/crypto/842.ko \ + $(LINUX_DIR)/lib/842/842_compress.ko \ + $(LINUX_DIR)/lib/842/842_decompress.ko + AUTOLOAD:=$(call AutoProbe,842 842_compress 842_decompress) +endef + +define KernelPackage/lib-842/description + Kernel module for 842 compression/decompression support +endef + +$(eval $(call KernelPackage,lib-842)) + + define KernelPackage/lib-raid6 SUBMENU:=$(LIB_MENU) TITLE:=RAID6 algorithm support diff --git a/target/linux/generic/config-5.15 b/target/linux/generic/config-5.15 index 878a60e66b..bd27f74d73 100644 --- a/target/linux/generic/config-5.15 +++ b/target/linux/generic/config-5.15 @@ -7562,6 +7562,7 @@ CONFIG_ZONE_DMA=y # CONFIG_ZPA2326 is not set # CONFIG_ZPOOL is not set # CONFIG_ZRAM is not set +# CONFIG_ZRAM_DEF_COMP_842 is not set # CONFIG_ZRAM_DEF_COMP_LZ4 is not set # CONFIG_ZRAM_DEF_COMP_LZ4HC is not set # CONFIG_ZRAM_DEF_COMP_LZO is not set -- 2.30.2