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kernel: add kmod-lib-842

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"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 <spudz76@gmail.com>
This commit is contained in:
Tony Butler 2022-12-06 16:39:27 -08:00 committed by Hauke Mehrtens
parent f83f5f8452
commit a7f3a51982
2 changed files with 23 additions and 0 deletions
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22
package/kernel/linux/modules/lib.mk
View File

@ -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

1
target/linux/generic/config-5.15
View File

@ -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