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linux/drivers/base/firmware_loader/Kconfig

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drivers: base: firmware_loader: add proper SPDX identifiers on files that did not have them. There were two files in the firmware_loader code that did not have SPDX identifiers on them, so fix that up. Cc: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-02 15:32:02 +02:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
firmware_loader: rework crypto dependencies The crypto dependencies for the firmwware loader are incomplete, in particular a built-in FW_LOADER fails to link against a modular crypto hash driver: ld.lld: error: undefined symbol: crypto_alloc_shash ld.lld: error: undefined symbol: crypto_shash_digest ld.lld: error: undefined symbol: crypto_destroy_tfm >>> referenced by main.c >>> drivers/base/firmware_loader/main.o:(fw_log_firmware_info) in archive vmlinux.a Rework this to use the usual 'select' from the driver module, to respect the built-in vs module dependencies, and add a more verbose crypto dependency to the debug option to prevent configurations that lead to a link failure. Fixes: 02fe26f25325 ("firmware_loader: Add debug message with checksum for FW file") Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230414080329.76176-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-14 10:03:07 +02:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
firmware_loader: Add debug message with checksum for FW file Enable dynamic-debug logging of firmware filenames and SHA256 checksums to clearly identify the firmware files that are loaded by the system. Example output: [ 34.944619] firmware_class:_request_firmware: i915 0000:00:02.0: Loaded FW: i915/kbl_dmc_ver1_04.bin, sha256: 2cde41c3e5ad181423bcc3e98ff9c49f743c88f18646af4d0b3c3a9664b831a1 [ 48.155884] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/cnl/dsp_basefw.bin, sha256: 43f6ac1b066e9bd0423d914960fbbdccb391af27d2b1da1085eee3ea8df0f357 [ 49.579540] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/rt274-tplg.bin, sha256: 4b3580da96dc3d2c443ba20c6728d8b665fceb3ed57223c3a57582bbad8e2413 [ 49.798196] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/hda-8086280c-tplg.bin, sha256: 5653172579b2be1b51fd69f5cf46e2bac8d63f2a1327924311c13b2f1fe6e601 [ 49.859627] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/dmic-tplg.bin, sha256: 00fb7fbdb74683333400d7e46925dae60db448b88638efcca0b30215db9df63f Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Reviewed-by: Russ Weight <russell.h.weight@intel.com> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20230317224729.1025879-1-amadeuszx.slawinski@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 23:47:29 +01:00
firmware_loader: rework crypto dependencies The crypto dependencies for the firmwware loader are incomplete, in particular a built-in FW_LOADER fails to link against a modular crypto hash driver: ld.lld: error: undefined symbol: crypto_alloc_shash ld.lld: error: undefined symbol: crypto_shash_digest ld.lld: error: undefined symbol: crypto_destroy_tfm >>> referenced by main.c >>> drivers/base/firmware_loader/main.o:(fw_log_firmware_info) in archive vmlinux.a Rework this to use the usual 'select' from the driver module, to respect the built-in vs module dependencies, and add a more verbose crypto dependency to the debug option to prevent configurations that lead to a link failure. Fixes: 02fe26f25325 ("firmware_loader: Add debug message with checksum for FW file") Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230414080329.76176-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-14 10:03:07 +02:00
firmware_loader: Add debug message with checksum for FW file Enable dynamic-debug logging of firmware filenames and SHA256 checksums to clearly identify the firmware files that are loaded by the system. Example output: [ 34.944619] firmware_class:_request_firmware: i915 0000:00:02.0: Loaded FW: i915/kbl_dmc_ver1_04.bin, sha256: 2cde41c3e5ad181423bcc3e98ff9c49f743c88f18646af4d0b3c3a9664b831a1 [ 48.155884] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/cnl/dsp_basefw.bin, sha256: 43f6ac1b066e9bd0423d914960fbbdccb391af27d2b1da1085eee3ea8df0f357 [ 49.579540] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/rt274-tplg.bin, sha256: 4b3580da96dc3d2c443ba20c6728d8b665fceb3ed57223c3a57582bbad8e2413 [ 49.798196] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/hda-8086280c-tplg.bin, sha256: 5653172579b2be1b51fd69f5cf46e2bac8d63f2a1327924311c13b2f1fe6e601 [ 49.859627] firmware_class:_request_firmware: snd_soc_avs 0000:00:1f.3: Loaded FW: intel/avs/dmic-tplg.bin, sha256: 00fb7fbdb74683333400d7e46925dae60db448b88638efcca0b30215db9df63f Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Reviewed-by: Russ Weight <russell.h.weight@intel.com> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20230317224729.1025879-1-amadeuszx.slawinski@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17 23:47:29 +01:00
rust: add firmware abstractions Add an abstraction around the kernels firmware API to request firmware images. The abstraction provides functions to access the firmware's size and backing buffer. The firmware is released once the abstraction instance is dropped. Signed-off-by: Danilo Krummrich <dakr@redhat.com> Acked-by: Boqun Feng <boqun.feng@gmail.com> Link: https://lore.kernel.org/r/20240618154841.6716-3-dakr@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-18 17:48:35 +02:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
firmware: Add support for loading compressed files This patch adds the support for loading compressed firmware files. The primary motivation is to reduce the storage size; e.g. currently the files in /lib/firmware on my machine counts up to 419MB, while they can be reduced to 130MB by file compression. The patch introduces a new kconfig option CONFIG_FW_LOADER_COMPRESS. Even with this option set, the firmware loader still tries to load the original firmware file as-is at first, but then falls back to the file with ".xz" extension when it's not found, and the decompressed file content is returned to the caller of request_firmware(). So, no change is needed for the rest. Currently only XZ format is supported. A caveat is that the kernel XZ helper code supports only CRC32 (or none) integrity check type, so you'll have to compress the files via xz -C crc32 option. Since we can't determine the expanded size immediately from an XZ file, the patch re-uses the paged buffer that was used for the user-mode fallback; it puts the decompressed content page, which are vmapped at the end. The paged buffer code is conditionally built with a new Kconfig that is selected automatically. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-11 14:26:25 +02:00
firmware_loader: Split sysfs support from fallback In preparation for sharing the "loading" and "data" sysfs nodes with the new firmware upload support, split out sysfs functionality from fallback.c and fallback.h into sysfs.c and sysfs.h. This includes the firmware class driver code that is associated with the sysfs files and the fw_fallback_config support for the timeout sysfs node. CONFIG_FW_LOADER_SYSFS is created and is selected by CONFIG_FW_LOADER_USER_HELPER in order to include sysfs.o in firmware_class-objs. This is mostly just a code reorganization. There are a few symbols that change in scope, and these can be identified by looking at the header file changes. A few white-space warnings from checkpatch are also addressed in this patch. Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Tianfei zhang <tianfei.zhang@intel.com> Tested-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Russ Weight <russell.h.weight@intel.com> Link: https://lore.kernel.org/r/20220421212204.36052-4-russell.h.weight@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-21 14:21:59 -07:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
firmware_loader: EXTRA_FIRMWARE does not support compressed files Document in the firmware loader Kconfig help text that firmware image file compression is not supported for builtin EXTRA_FIRMWARE files so that someone does not waste time trying that. Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220214222311.9758-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-14 14:23:11 -08:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
firmware_loader: Split sysfs support from fallback In preparation for sharing the "loading" and "data" sysfs nodes with the new firmware upload support, split out sysfs functionality from fallback.c and fallback.h into sysfs.c and sysfs.h. This includes the firmware class driver code that is associated with the sysfs files and the fw_fallback_config support for the timeout sysfs node. CONFIG_FW_LOADER_SYSFS is created and is selected by CONFIG_FW_LOADER_USER_HELPER in order to include sysfs.o in firmware_class-objs. This is mostly just a code reorganization. There are a few symbols that change in scope, and these can be identified by looking at the header file changes. A few white-space warnings from checkpatch are also addressed in this patch. Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Tianfei zhang <tianfei.zhang@intel.com> Tested-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Russ Weight <russell.h.weight@intel.com> Link: https://lore.kernel.org/r/20220421212204.36052-4-russell.h.weight@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-21 14:21:59 -07:00
firmware: Add support for loading compressed files This patch adds the support for loading compressed firmware files. The primary motivation is to reduce the storage size; e.g. currently the files in /lib/firmware on my machine counts up to 419MB, while they can be reduced to 130MB by file compression. The patch introduces a new kconfig option CONFIG_FW_LOADER_COMPRESS. Even with this option set, the firmware loader still tries to load the original firmware file as-is at first, but then falls back to the file with ".xz" extension when it's not found, and the decompressed file content is returned to the caller of request_firmware(). So, no change is needed for the rest. Currently only XZ format is supported. A caveat is that the kernel XZ helper code supports only CRC32 (or none) integrity check type, so you'll have to compress the files via xz -C crc32 option. Since we can't determine the expanded size immediately from an XZ file, the patch re-uses the paged buffer that was used for the user-mode fallback; it puts the decompressed content page, which are vmapped at the end. The paged buffer code is conditionally built with a new Kconfig that is selected automatically. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-11 14:26:25 +02:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
drivers: base: Fix Kconfig indentation Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20191120134256.16186-1-krzk@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-20 21:42:56 +08:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00
firmware: Add support for loading compressed files This patch adds the support for loading compressed firmware files. The primary motivation is to reduce the storage size; e.g. currently the files in /lib/firmware on my machine counts up to 419MB, while they can be reduced to 130MB by file compression. The patch introduces a new kconfig option CONFIG_FW_LOADER_COMPRESS. Even with this option set, the firmware loader still tries to load the original firmware file as-is at first, but then falls back to the file with ".xz" extension when it's not found, and the decompressed file content is returned to the caller of request_firmware(). So, no change is needed for the rest. Currently only XZ format is supported. A caveat is that the kernel XZ helper code supports only CRC32 (or none) integrity check type, so you'll have to compress the files via xz -C crc32 option. Since we can't determine the expanded size immediately from an XZ file, the patch re-uses the paged buffer that was used for the user-mode fallback; it puts the decompressed content page, which are vmapped at the end. The paged buffer code is conditionally built with a new Kconfig that is selected automatically. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-11 14:26:25 +02:00
firmware_loader: EXTRA_FIRMWARE does not support compressed files Document in the firmware loader Kconfig help text that firmware image file compression is not supported for builtin EXTRA_FIRMWARE files so that someone does not waste time trying that. Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220214222311.9758-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-14 14:23:11 -08:00
firmware: Add the support for ZSTD-compressed firmware files As the growing demand on ZSTD compressions, there have been requests for the support of ZSTD-compressed firmware files, so here it is: this patch extends the firmware loader code to allow loading ZSTD files. The implementation is fairly straightforward, it just adds a ZSTD decompression routine for the file expander. (And the code is even simpler than XZ thanks to the ZSTD API that gives the original decompressed size from the header.) Link: https://lore.kernel.org/all/20210127154939.13288-1-tiwai@suse.de/ Tested-by: Piotr Gorski <lucjan.lucjanov@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20220421152908.4718-2-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-21 17:29:04 +02:00
firmware_loader: enable XZ by default if compressed support is enabled Commit 23cfbc6ec44e ("firmware: Add the support for ZSTD-compressed firmware files") added support for ZSTD compression, but in the process also made the previously default XZ compression a config option. That means that anybody who upgrades their kernel and does a make oldconfig to update their configuration, will end up without the XZ compression that the configuration used to have. Add the 'default y' to make sure this doesn't happen. The whole compression question should probably be improved upon, since it is now possible to "enable" compression in the kernel config but not enable any actual compression algorithm, which makes it all very useless. It makes no sense to ask Kconfig questions that enable situations that are nonsensical like that. This at least fixes the immediate problem of a kernel update resulting in a nonbootable machine because of a missed option. Fixes: 23cfbc6ec44e ("firmware: Add the support for ZSTD-compressed firmware files") Cc: Takashi Iwai <tiwai@suse.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-06-03 15:46:03 -07:00
firmware: Add the support for ZSTD-compressed firmware files As the growing demand on ZSTD compressions, there have been requests for the support of ZSTD-compressed firmware files, so here it is: this patch extends the firmware loader code to allow loading ZSTD files. The implementation is fairly straightforward, it just adds a ZSTD decompression routine for the file expander. (And the code is even simpler than XZ thanks to the ZSTD API that gives the original decompressed size from the header.) Link: https://lore.kernel.org/all/20210127154939.13288-1-tiwai@suse.de/ Tested-by: Piotr Gorski <lucjan.lucjanov@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20220421152908.4718-2-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-21 17:29:04 +02:00
firmware_class: make firmware caching configurable Because firmware caching generates uevent messages that are sent over a netlink socket, it can prevent suspend on many platforms. It's also not always useful, so make it a configurable option. Signed-off-by: Mark Salyzyn <salyzyn@android.com> Cc: Tim Murray <timmurray@google.com> Cc: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: kernel-team@android.com Acked-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20191113225429.118495-1-salyzyn@android.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-13 14:54:26 -08:00
firmware_loader: Add firmware-upload support Extend the firmware subsystem to support a persistent sysfs interface that userspace may use to initiate a firmware update. For example, FPGA based PCIe cards load firmware and FPGA images from local FLASH when the card boots. The images in FLASH may be updated with new images provided by the user at his/her convenience. A device driver may call firmware_upload_register() to expose persistent "loading" and "data" sysfs files. These files are used in the same way as the fallback sysfs "loading" and "data" files. When 0 is written to "loading" to complete the write of firmware data, the data is transferred to the lower-level driver using pre-registered call-back functions. The data transfer is done in the context of a kernel worker thread. Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Tianfei zhang <tianfei.zhang@intel.com> Tested-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Russ Weight <russell.h.weight@intel.com> Link: https://lore.kernel.org/r/20220421212204.36052-5-russell.h.weight@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-21 14:22:00 -07:00
firmware_loader: move kconfig FW_LOADER entries to its own file This will make it easier to track and easier to understand what components and features are part of the FW_LOADER. There are some components related to firmware which have *nothing* to do with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-10 13:08:43 -07:00