linux-brain/arch/mips/loongson64/Kconfig

156 lines
3.7 KiB
Plaintext
Raw Normal View History

License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 23:07:57 +09:00
# SPDX-License-Identifier: GPL-2.0
if MACH_LOONGSON64
choice
prompt "Machine Type"
config LEMOTE_FULOONG2E
bool "Lemote Fuloong(2e) mini-PC"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select CEVT_R4K
select CSRC_R4K
select SYS_HAS_CPU_LOONGSON2E
select DMA_NONCOHERENT
select BOOT_ELF32
select BOARD_SCACHE
select HW_HAS_PCI
select I8259
select ISA
select IRQ_MIPS_CPU
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_HIGHMEM
select SYS_HAS_EARLY_PRINTK
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select CPU_HAS_WB
select LOONGSON_MC146818
help
Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and
an FPGA northbridge
Lemote Fuloong(2e) mini PC have a VIA686B south bridge.
config LEMOTE_MACH2F
bool "Lemote Loongson 2F family machines"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select BOARD_SCACHE
select BOOT_ELF32
select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
select CPU_HAS_WB
select CS5536
select CSRC_R4K if ! MIPS_EXTERNAL_TIMER
select DMA_NONCOHERENT
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select HAVE_CLK
select HW_HAS_PCI
select I8259
select IRQ_MIPS_CPU
select ISA
select SYS_HAS_CPU_LOONGSON2F
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
select LOONGSON_MC146818
help
Lemote Loongson 2F family machines utilize the 2F revision of
Loongson processor and the AMD CS5536 south bridge.
These family machines include fuloong2f mini PC, yeeloong2f notebook,
LingLoong allinone PC and so forth.
config LOONGSON_MACH3X
bool "Generic Loongson 3 family machines"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select BOOT_ELF32
select BOARD_SCACHE
select CSRC_R4K
select CEVT_R4K
select CPU_HAS_WB
select HW_HAS_PCI
select ISA
select HT_PCI
select I8259
select IRQ_MIPS_CPU
select NR_CPUS_DEFAULT_4
select SYS_HAS_CPU_LOONGSON3
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_SMP
select SYS_SUPPORTS_HOTPLUG_CPU
select SYS_SUPPORTS_NUMA
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
select LOONGSON_MC146818
select ZONE_DMA32
select LEFI_FIRMWARE_INTERFACE
select PHYS48_TO_HT40
help
Generic Loongson 3 family machines utilize the 3A/3B revision
of Loongson processor and RS780/SBX00 chipset.
endchoice
config CS5536
bool
config CS5536_MFGPT
bool "CS5536 MFGPT Timer"
depends on CS5536 && !HIGH_RES_TIMERS
select MIPS_EXTERNAL_TIMER
help
This option enables the mfgpt0 timer of AMD CS5536. With this timer
switched on you can not use high resolution timers.
If you want to enable the Loongson2 CPUFreq Driver, Please enable
this option at first, otherwise, You will get wrong system time.
If unsure, say Yes.
config RS780_HPET
bool "RS780/SBX00 HPET Timer"
depends on LOONGSON_MACH3X
select MIPS_EXTERNAL_TIMER
help
This option enables the hpet timer of AMD RS780/SBX00.
If you want to enable the Loongson3 CPUFreq Driver, Please enable
this option at first, otherwise, You will get wrong system time.
If unsure, say Yes.
config LOONGSON_UART_BASE
bool
default y
depends on EARLY_PRINTK || SERIAL_8250
config NEED_SG_DMA_LENGTH
bool
config SWIOTLB
bool "Soft IOMMU Support for All-Memory DMA"
default y
depends on CPU_LOONGSON3
select DMA_DIRECT_OPS
select NEED_SG_DMA_LENGTH
select NEED_DMA_MAP_STATE
config PHYS48_TO_HT40
bool
default y if CPU_LOONGSON3
config LOONGSON_MC146818
bool
default n
config LEFI_FIRMWARE_INTERFACE
bool
endif # MACH_LOONGSON64