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 14:07:57 +00:00
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# SPDX-License-Identifier: GPL-2.0
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2005-04-16 22:20:36 +00:00
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config M68K
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bool
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default y
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2018-06-20 08:19:45 +00:00
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select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
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2013-10-08 02:10:21 +00:00
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select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
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2017-06-28 09:16:57 +00:00
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select ARCH_NO_COHERENT_DMA_MMAP if !MMU
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2018-07-31 11:39:32 +00:00
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|
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select ARCH_NO_PREEMPT if !COLDFIRE
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2008-02-09 09:46:40 +00:00
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select HAVE_IDE
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2011-03-22 03:39:27 +00:00
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select HAVE_AOUT if MMU
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2012-10-08 23:28:13 +00:00
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select HAVE_DEBUG_BUGVERBOSE
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2011-09-11 09:28:04 +00:00
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select GENERIC_IRQ_SHOW
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2012-08-14 04:31:33 +00:00
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select GENERIC_ATOMIC64
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2012-10-08 23:28:08 +00:00
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select HAVE_UID16
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2013-03-07 04:48:16 +00:00
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select VIRT_TO_BUS
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2011-07-13 05:14:22 +00:00
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select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
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2012-01-10 03:04:32 +00:00
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select GENERIC_CPU_DEVICES
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2013-08-02 07:24:38 +00:00
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select GENERIC_IOMAP
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2012-05-29 21:30:08 +00:00
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select GENERIC_STRNCPY_FROM_USER if MMU
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select GENERIC_STRNLEN_USER if MMU
|
2012-07-30 21:42:46 +00:00
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select ARCH_WANT_IPC_PARSE_VERSION
|
2012-05-18 16:45:49 +00:00
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select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
|
2014-03-05 23:29:27 +00:00
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|
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select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
|
2012-09-28 05:01:03 +00:00
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select HAVE_MOD_ARCH_SPECIFIC
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select MODULES_USE_ELF_REL
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|
select MODULES_USE_ELF_RELA
|
2012-12-25 21:26:28 +00:00
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|
|
select OLD_SIGSUSPEND3
|
2012-12-26 00:29:01 +00:00
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|
|
select OLD_SIGACTION
|
2018-09-08 09:22:43 +00:00
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select DMA_DIRECT_OPS if HAS_DMA
|
2018-07-04 06:28:16 +00:00
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|
|
select ARCH_DISCARD_MEMBLOCK
|
2005-04-16 22:20:36 +00:00
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|
|
|
2017-09-08 23:14:22 +00:00
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|
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config CPU_BIG_ENDIAN
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def_bool y
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|
2005-04-16 22:20:36 +00:00
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|
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config RWSEM_GENERIC_SPINLOCK
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bool
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default y
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config RWSEM_XCHGADD_ALGORITHM
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bool
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|
2006-12-08 10:37:49 +00:00
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config ARCH_HAS_ILOG2_U32
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bool
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config ARCH_HAS_ILOG2_U64
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bool
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|
2006-03-26 09:39:27 +00:00
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config GENERIC_HWEIGHT
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bool
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default y
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|
2005-04-16 22:20:36 +00:00
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|
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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|
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|
|
2011-10-18 05:49:19 +00:00
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|
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config GENERIC_CSUM
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bool
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|
2006-02-14 21:53:15 +00:00
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config TIME_LOW_RES
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bool
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default y
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|
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|
|
2014-04-07 22:39:19 +00:00
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|
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config NO_IOPORT_MAP
|
2007-02-11 15:41:31 +00:00
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|
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def_bool y
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|
2007-07-20 03:33:58 +00:00
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config NO_DMA
|
2011-03-22 03:39:27 +00:00
|
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def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
|
2007-07-20 03:33:58 +00:00
|
|
|
|
2011-03-22 03:39:27 +00:00
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|
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config ZONE_DMA
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bool
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default y
|
2011-05-17 06:45:00 +00:00
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|
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|
avoid overflows in kernel/time.c
When the conversion factor between jiffies and milli- or microseconds is
not a single multiply or divide, as for the case of HZ == 300, we currently
do a multiply followed by a divide. The intervening result, however, is
subject to overflows, especially since the fraction is not simplified (for
HZ == 300, we multiply by 300 and divide by 1000).
This is exposed to the user when passing a large timeout to poll(), for
example.
This patch replaces the multiply-divide with a reciprocal multiplication on
32-bit platforms. When the input is an unsigned long, there is no portable
way to do this on 64-bit platforms there is no portable way to do this
since it requires a 128-bit intermediate result (which gcc does support on
64-bit platforms but may generate libgcc calls, e.g. on 64-bit s390), but
since the output is a 32-bit integer in the cases affected, just simplify
the multiply-divide (*3/10 instead of *300/1000).
The reciprocal multiply used can have off-by-one errors in the upper half
of the valid output range. This could be avoided at the expense of having
to deal with a potential 65-bit intermediate result. Since the intent is
to avoid overflow problems and most of the other time conversions are only
semiexact, the off-by-one errors were considered an acceptable tradeoff.
At Ralf Baechle's suggestion, this version uses a Perl script to compute
the necessary constants. We already have dependencies on Perl for kernel
compiles. This does, however, require the Perl module Math::BigInt, which
is included in the standard Perl distribution starting with version 5.8.0.
In order to support older versions of Perl, include a table of canned
constants in the script itself, and structure the script so that
Math::BigInt isn't required if pulling values from said table.
Running the script requires that the HZ value is available from the
Makefile. Thus, this patch also adds the Kconfig variable CONFIG_HZ to the
architectures which didn't already have it (alpha, cris, frv, h8300, m32r,
m68k, m68knommu, sparc, v850, and xtensa.) It does *not* touch the sh or
sh64 architectures, since Paul Mundt has dealt with those separately in the
sh tree.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Ralf Baechle <ralf@linux-mips.org>,
Cc: Sam Ravnborg <sam@ravnborg.org>,
Cc: Paul Mundt <lethal@linux-sh.org>,
Cc: Richard Henderson <rth@twiddle.net>,
Cc: Michael Starvik <starvik@axis.com>,
Cc: David Howells <dhowells@redhat.com>,
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
Cc: Hirokazu Takata <takata@linux-m32r.org>,
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Cc: Roman Zippel <zippel@linux-m68k.org>,
Cc: William L. Irwin <sparclinux@vger.kernel.org>,
Cc: Chris Zankel <chris@zankel.net>,
Cc: H. Peter Anvin <hpa@zytor.com>,
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 12:21:26 +00:00
|
|
|
config HZ
|
|
|
|
|
int
|
2011-03-22 03:39:27 +00:00
|
|
|
default 1000 if CLEOPATRA
|
avoid overflows in kernel/time.c
When the conversion factor between jiffies and milli- or microseconds is
not a single multiply or divide, as for the case of HZ == 300, we currently
do a multiply followed by a divide. The intervening result, however, is
subject to overflows, especially since the fraction is not simplified (for
HZ == 300, we multiply by 300 and divide by 1000).
This is exposed to the user when passing a large timeout to poll(), for
example.
This patch replaces the multiply-divide with a reciprocal multiplication on
32-bit platforms. When the input is an unsigned long, there is no portable
way to do this on 64-bit platforms there is no portable way to do this
since it requires a 128-bit intermediate result (which gcc does support on
64-bit platforms but may generate libgcc calls, e.g. on 64-bit s390), but
since the output is a 32-bit integer in the cases affected, just simplify
the multiply-divide (*3/10 instead of *300/1000).
The reciprocal multiply used can have off-by-one errors in the upper half
of the valid output range. This could be avoided at the expense of having
to deal with a potential 65-bit intermediate result. Since the intent is
to avoid overflow problems and most of the other time conversions are only
semiexact, the off-by-one errors were considered an acceptable tradeoff.
At Ralf Baechle's suggestion, this version uses a Perl script to compute
the necessary constants. We already have dependencies on Perl for kernel
compiles. This does, however, require the Perl module Math::BigInt, which
is included in the standard Perl distribution starting with version 5.8.0.
In order to support older versions of Perl, include a table of canned
constants in the script itself, and structure the script so that
Math::BigInt isn't required if pulling values from said table.
Running the script requires that the HZ value is available from the
Makefile. Thus, this patch also adds the Kconfig variable CONFIG_HZ to the
architectures which didn't already have it (alpha, cris, frv, h8300, m32r,
m68k, m68knommu, sparc, v850, and xtensa.) It does *not* touch the sh or
sh64 architectures, since Paul Mundt has dealt with those separately in the
sh tree.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Ralf Baechle <ralf@linux-mips.org>,
Cc: Sam Ravnborg <sam@ravnborg.org>,
Cc: Paul Mundt <lethal@linux-sh.org>,
Cc: Richard Henderson <rth@twiddle.net>,
Cc: Michael Starvik <starvik@axis.com>,
Cc: David Howells <dhowells@redhat.com>,
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
Cc: Hirokazu Takata <takata@linux-m32r.org>,
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Cc: Roman Zippel <zippel@linux-m68k.org>,
Cc: William L. Irwin <sparclinux@vger.kernel.org>,
Cc: Chris Zankel <chris@zankel.net>,
Cc: H. Peter Anvin <hpa@zytor.com>,
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 12:21:26 +00:00
|
|
|
default 100
|
|
|
|
|
|
2015-04-14 22:45:48 +00:00
|
|
|
config PGTABLE_LEVELS
|
|
|
|
|
default 2 if SUN3 || COLDFIRE
|
|
|
|
|
default 3
|
|
|
|
|
|
2011-03-22 03:39:27 +00:00
|
|
|
config MMU
|
|
|
|
|
bool "MMU-based Paged Memory Management Support"
|
2005-04-16 22:20:36 +00:00
|
|
|
default y
|
|
|
|
|
help
|
2011-03-22 03:39:27 +00:00
|
|
|
Select if you want MMU-based virtualised addressing space
|
|
|
|
|
support by paged memory management. If unsure, say 'Y'.
|
2005-04-16 22:20:36 +00:00
|
|
|
|
m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.
Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.
Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.
This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.
The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.
Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.
Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.
Kconfig.devices contains options for drivers and driver associated
options.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-06-20 05:49:09 +00:00
|
|
|
config MMU_MOTOROLA
|
|
|
|
|
bool
|
|
|
|
|
|
2011-10-18 06:26:11 +00:00
|
|
|
config MMU_COLDFIRE
|
|
|
|
|
bool
|
|
|
|
|
|
m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.
Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.
Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.
This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.
The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.
Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.
Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.
Kconfig.devices contains options for drivers and driver associated
options.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-06-20 05:49:09 +00:00
|
|
|
config MMU_SUN3
|
|
|
|
|
bool
|
2011-10-18 06:26:11 +00:00
|
|
|
depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
|
m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.
Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.
Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.
This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.
The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.
Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.
Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.
Kconfig.devices contains options for drivers and driver associated
options.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-06-20 05:49:09 +00:00
|
|
|
|
2013-08-20 20:51:47 +00:00
|
|
|
config KEXEC
|
|
|
|
|
bool "kexec system call"
|
|
|
|
|
depends on M68KCLASSIC
|
2015-09-09 22:38:55 +00:00
|
|
|
select KEXEC_CORE
|
2013-08-20 20:51:47 +00:00
|
|
|
help
|
|
|
|
|
kexec is a system call that implements the ability to shutdown your
|
|
|
|
|
current kernel, and to start another kernel. It is like a reboot
|
|
|
|
|
but it is independent of the system firmware. And like a reboot
|
|
|
|
|
you can start any kernel with it, not just Linux.
|
|
|
|
|
|
|
|
|
|
The name comes from the similarity to the exec system call.
|
|
|
|
|
|
|
|
|
|
It is an ongoing process to be certain the hardware in a machine
|
|
|
|
|
is properly shutdown, so do not be surprised if this code does not
|
|
|
|
|
initially work for you. As of this writing the exact hardware
|
|
|
|
|
interface is strongly in flux, so no good recommendation can be
|
|
|
|
|
made.
|
|
|
|
|
|
2013-08-21 20:36:32 +00:00
|
|
|
config BOOTINFO_PROC
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bool "Export bootinfo in procfs"
|
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|
|
depends on KEXEC && M68KCLASSIC
|
|
|
|
|
help
|
|
|
|
|
Say Y to export the bootinfo used to boot the kernel in a
|
|
|
|
|
"bootinfo" file in procfs. This is useful with kexec.
|
|
|
|
|
|
m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.
Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.
Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.
This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.
The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.
Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.
Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.
Kconfig.devices contains options for drivers and driver associated
options.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-06-20 05:49:09 +00:00
|
|
|
menu "Platform setup"
|
|
|
|
|
|
|
|
|
|
source arch/m68k/Kconfig.cpu
|
|
|
|
|
|
|
|
|
|
source arch/m68k/Kconfig.machine
|
|
|
|
|
|
|
|
|
|
source arch/m68k/Kconfig.bus
|
|
|
|
|
|
|
|
|
|
endmenu
|
|
|
|
|
|
|
|
|
|
menu "Kernel Features"
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2011-03-22 03:39:27 +00:00
|
|
|
endmenu
|
2007-02-10 09:43:14 +00:00
|
|
|
|
2011-03-22 03:39:27 +00:00
|
|
|
if !MMU
|
|
|
|
|
menu "Power management options"
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2011-03-22 03:39:27 +00:00
|
|
|
config PM
|
m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.
Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.
Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.
This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.
The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.
Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.
Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.
Kconfig.devices contains options for drivers and driver associated
options.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-06-20 05:49:09 +00:00
|
|
|
bool "Power Management support"
|
|
|
|
|
help
|
|
|
|
|
Support processor power management modes
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
|
endmenu
|
2011-03-22 03:39:27 +00:00
|
|
|
endif
|
2005-04-16 22:20:36 +00:00
|
|
|
|
m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.
Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.
Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.
This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.
The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.
Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.
Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.
Kconfig.devices contains options for drivers and driver associated
options.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-06-20 05:49:09 +00:00
|
|
|
source "arch/m68k/Kconfig.devices"
|
