linux-stable.git/arch/mips/boot/compressed, branch v4.2

MIPS: Add support for vmlinuz.bin appended dtb

2015-06-21T19:54:15+00:00

Add support for detecting a vmlinuz.bin appended dtb and overriding
the boot arguments to match the UHI interface.

To ensure _edata / __apendend_dtb points to the actual end of the
binary, align the data section to 16 bytes instead of the address
cursor.

Due to ld.script not going through the preprocessor, we can't check
for MIPS_ZBOOT_APPENDED_DTB being enabled, so always reserve space
for it. It should have no consequences for booting without it enabled
except 1 MiB more ram usage during the uncompressing stage.

Signed-off-by: Jonas Gorski 
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: John Crispin 
Cc: Kevin Cernekee 
Cc: Florian Fainelli 
Cc: Aaro Koskinen 
Cc: Markos Chandras 
Cc: Andrew Bresticker 
Cc: Daniel Schwierzeck 
Cc: Paul Burton 
Cc: James Hartley 
Patchwork: https://patchwork.linux-mips.org/patch/9741/
Signed-off-by: Ralf Baechle

MIPS: Loongson: Naming style cleanup and rework

2015-06-21T19:53:59+00:00

Currently, code of Loongson-2/3 is under loongson directory and code of
Loongson-1 is under loongson1 directory. Besides, there are Kconfig
options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is
very ugly and confusing. Since Loongson-2/3 are both 64-bit general-
purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names
and Kconfig symbols from loongson/loongson1 to loongson64/loongson32.

[ralf@linux-mips.org: Resolve a number of simple conflicts.]

Signed-off-by: Huacai Chen 
Cc: Steven J. Hill 
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang 
Cc: Zhangjin Wu 
Cc: Kelvin Cheung 
Patchwork: https://patchwork.linux-mips.org/patch/9790/
Signed-off-by: Ralf Baechle

MIPS: Reduce kernel image size for !CONFIG_DEBUG_ZBOOT

2015-04-02T11:54:25+00:00

!CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and
the corrospindig strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves
about 1280 bytes.

[ralf@linux-mips.org: Resolved reject.]

Signed-off-by: Wu Zhangjin 
Cc: linux-mips@linux-mips.org
Cc: Wu Zhangjin 
Patchwork: https://patchwork.linux-mips.org/patch/1898/
Signed-off-by: Ralf Baechle

MIPS: Allow platforms to specify the decompressor load address

2015-03-31T10:04:12+00:00

Platforms which use raw zboot images may need to link the image at
a fixed address if there is no other way to communicate the load
address to the bootloader.  Allow the per-platform Kbuild files
to specify an optional zboot image load address (zload-y) and fall
back to calc_vmlinuz_load_addr if unset.

Signed-off-by: Andrew Bresticker 
Cc: Lars-Peter Clausen 
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker 
Cc: Ezequiel Garcia 
Cc: James Hartley 
Cc: James Hogan 
Patchwork: https://patchwork.linux-mips.org/patch/9566/
Signed-off-by: Ralf Baechle

MIPS: ZBOOT: add missing include

2014-08-26T00:18:58+00:00

Commit dc4d7b37 (MIPS: ZBOOT: gather string functions into string.c)
moved the string related functions into a separate file, which might
cause the following build error, depending on the configuration:

| CC      arch/mips/boot/compressed/decompress.o
| In file included from linux/arch/mips/boot/compressed/../../../../lib/decompress_unxz.c:234:0,
|                  from linux/arch/mips/boot/compressed/decompress.c:67:
| linux/arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c: In function 'fill_temp':
| linux/arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:162:2: error: implicit declaration of function 'memcpy' [-Werror=implicit-function-declaration]
| cc1: some warnings being treated as errors
| linux/scripts/Makefile.build:308: recipe for target 'arch/mips/boot/compressed/decompress.o' failed
| make[6]: *** [arch/mips/boot/compressed/decompress.o] Error 1
| linux/arch/mips/Makefile:308: recipe for target 'vmlinuz' failed

It does not fail with the standard configuration, as when
CONFIG_DYNAMIC_DEBUG is not enabled  gets included in
include/linux/dynamic_debug.h. There might be other ways for it to
get indirectly included.

We can't add the include directly in xz_dec_stream.c as some
architectures might want to use a different version for the boot/
directory (see for example arch/x86/boot/string.h).

Signed-off-by: Aurelien Jarno 
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7420/
Signed-off-by: Ralf Baechle

MIPS: ZBOOT: implement stack protector in compressed boot phase

2014-08-01T22:06:46+00:00

This patch implements the stack protector code in MIPS compressed boot
phase based on the same code added to arm in commit
8779657d29c0ebcc0c94ede4df2f497baf1b563f "stackprotector: Introduce
CONFIG_CC_STACKPROTECTOR_STRONG" by Kees Cook 

Signed-off-by: Ben Chan 
Cc: Kees Cook 
Cc: Olof Johansson 
Reviewed-by: Kees Cook 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7175/
Signed-off-by: Ralf Baechle

mips: delete non-required instances of include

2014-01-24T21:39:56+00:00

None of these files are actually using any __init type directives
and hence don't need to include .  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker 
Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/6320/

MIPS: ZBOOT: gather string functions into string.c

2014-01-24T21:39:55+00:00

In the worst case this adds less then 128 bytes of code
but on the other hand this makes code organization more clear.

Signed-off-by: Antony Pavlov 
Reviewed-by: Florian Fainelli 
Cc: linux-mips@linux-mips.org
Cc: Ralf Baechle 
Cc: John Crispin 
Cc: Florian Fainelli 
Acked-by: Florian Fainelli 
Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/6344/

MIPS: JZ4740: reuse UART0 address macro for vmlinuz debug port

2014-01-23T12:02:34+00:00

Signed-off-by: Antony Pavlov 
Acked-by: Lars-Peter Clausen 
Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/5927/

MIPS: ZBOOT: Support LZ4 compression scheme

2013-10-29T20:24:34+00:00

Add support for the LZ4 compression scheme in the ZBOOT decompression
stub, in order to support it we need to:

- select the "lz4" compression tool to compress the vmlinux.bin
  payload
- memcpy() is also required for decompress_unlz4.c so we share the
  implementation between GZIP, XZ and now LZ4

Signed-off-by: Florian Fainelli 
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5829/
Signed-off-by: Ralf Baechle