| Kconfig (0aea30a07ec6b50de0fc5f5b2ec34a68ead86b61) | Kconfig (23cfbc6ec44e5e80d5522976ff45ffcdcddfb230) |
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| 1# SPDX-License-Identifier: GPL-2.0 2menu "Firmware loader" 3 4config FW_LOADER 5 tristate "Firmware loading facility" if EXPERT 6 default y 7 help 8 This enables the firmware loading facility in the kernel. The kernel --- 145 unchanged lines hidden (view full) --- 154 be enabled by setting the proc sysctl value to true: 155 156 /proc/sys/kernel/firmware_config/force_sysfs_fallback 157 158 If you are unsure about this, say N here. 159 160config FW_LOADER_COMPRESS 161 bool "Enable compressed firmware support" | 1# SPDX-License-Identifier: GPL-2.0 2menu "Firmware loader" 3 4config FW_LOADER 5 tristate "Firmware loading facility" if EXPERT 6 default y 7 help 8 This enables the firmware loading facility in the kernel. The kernel --- 145 unchanged lines hidden (view full) --- 154 be enabled by setting the proc sysctl value to true: 155 156 /proc/sys/kernel/firmware_config/force_sysfs_fallback 157 158 If you are unsure about this, say N here. 159 160config FW_LOADER_COMPRESS 161 bool "Enable compressed firmware support" |
| 162 select FW_LOADER_PAGED_BUF 163 select XZ_DEC | |
| 164 help 165 This option enables the support for loading compressed firmware 166 files. The caller of firmware API receives the decompressed file 167 content. The compressed file is loaded as a fallback, only after 168 loading the raw file failed at first. 169 | 162 help 163 This option enables the support for loading compressed firmware 164 files. The caller of firmware API receives the decompressed file 165 content. The compressed file is loaded as a fallback, only after 166 loading the raw file failed at first. 167 |
| 170 Currently only XZ-compressed files are supported, and they have to 171 be compressed with either none or crc32 integrity check type (pass 172 "-C crc32" option to xz command). 173 | |
| 174 Compressed firmware support does not apply to firmware images 175 that are built into the kernel image (CONFIG_EXTRA_FIRMWARE). 176 | 168 Compressed firmware support does not apply to firmware images 169 that are built into the kernel image (CONFIG_EXTRA_FIRMWARE). 170 |
| 171if FW_LOADER_COMPRESS 172config FW_LOADER_COMPRESS_XZ 173 bool "Enable XZ-compressed firmware support" 174 select FW_LOADER_PAGED_BUF 175 select XZ_DEC 176 help 177 This option adds the support for XZ-compressed files. 178 The files have to be compressed with either none or crc32 179 integrity check type (pass "-C crc32" option to xz command). 180 181config FW_LOADER_COMPRESS_ZSTD 182 bool "Enable ZSTD-compressed firmware support" 183 select ZSTD_DECOMPRESS 184 help 185 This option adds the support for ZSTD-compressed files. 186 187endif # FW_LOADER_COMPRESS 188 |
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| 177config FW_CACHE 178 bool "Enable firmware caching during suspend" 179 depends on PM_SLEEP 180 default y if PM_SLEEP 181 help 182 Because firmware caching generates uevent messages that are sent 183 over a netlink socket, it can prevent suspend on many platforms. 184 It is also not always useful, so on such platforms we have the 185 option. 186 187 If unsure, say Y. 188 189endif # FW_LOADER 190endmenu | 189config FW_CACHE 190 bool "Enable firmware caching during suspend" 191 depends on PM_SLEEP 192 default y if PM_SLEEP 193 help 194 Because firmware caching generates uevent messages that are sent 195 over a netlink socket, it can prevent suspend on many platforms. 196 It is also not always useful, so on such platforms we have the 197 option. 198 199 If unsure, say Y. 200 201endif # FW_LOADER 202endmenu |