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  1. 19 2月, 2008 1 次提交
  3. 07 2月, 2008 1 次提交
    • G
      [POWERPC] bootwrapper: Build multiple cuImages · 25431333
      由 Grant Likely 提交于 
      Currently, the kernel uses CONFIG_DEVICE_TREE to wrap a kernel image
with a fdt blob which means for any given configuration only one dts
file can be selected and so support for only one board can be built

This moves the selection of the default .dts file out of the kernel
config and into the bootwrapper makefile.  The makefile chooses which
images to build based on the kernel config and the dts source file
name is taken directly from the image name.  For example "cuImage.ebony"
will use "ebony.dts" as the device tree source file.

In addition, this patch allows a specific image to be requested from the
command line by adding "cuImage.%" and "treeImage.%" targets to the list
of valid built targets in arch/powerpc/Makefile.  This allows the default
dts selection to be overridden.

Another advantage to this change is it allows a single defconfig to be
supplied for all boards using the same chip family and only differing in
the device tree.

Important note: This patch adds two new zImage targets; zImage.dtb.% and
zImage.dtb.initrd.% for zImages with embedded dtb files.  Currently
there are 5 platforms which require this: ps3, ep405, mpc885ads, ep88xc,
adder875-redboot and ep8248e.  This patch *changes the zImage filenames*
for those platforms.  ie. 'zImage.ps3' is now 'zImage.dtb.ps3'.

This new zImage.dtb targets were added so that the .dts file could be
part of the dependancies list for building them.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      25431333
  5. 06 12月, 2007 1 次提交
  7. 09 11月, 2007 1 次提交
    • K
      [POWERPC] Add -mno-spe for ARCH=powerpc builds · 0197cd2e
      由 Kumar Gala 提交于 
      Newer GCC's are capable of autovectorization for ISA extensions like
AltiVec and SPE.  If we happen to build with one of those compilers we
will get SPE instructions in random kernel code.  Today we only allow
basic interger code in the kernel and FP, AltiVec, or SPE in special
explicit locations that have handled the proper saving and restoring of
the register state (since on uniprocessor we lazy context switch the
register state for FP, AltiVec, and SPE).

-mno-spe disables the compiler for automatically generating SPE
instructions without our knowledge.
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
      0197cd2e
  9. 16 10月, 2007 2 次提交
    • S
      kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP · 06c5040c
      由 Sam Ravnborg 提交于 
      The variable CPPFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.

This patch replace use of CPPFLAGS with KBUILD_CPPFLAGS all over the
tree and enabling one to use:
make CPPFLAGS=...
to specify additional CPP commandline options.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      06c5040c
    • S
      kbuild: enable 'make AFLAGS=...' to add additional options to AS · 222d394d
      由 Sam Ravnborg 提交于 
      The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      222d394d
  11. 15 10月, 2007 1 次提交
    • S
      kbuild: enable 'make CFLAGS=...' to add additional options to CC · a0f97e06
      由 Sam Ravnborg 提交于 
      The variable CFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
tree and enabling one to use:
make CFLAGS=...
to specify additional gcc commandline options.

One usecase is when trying to find gcc bugs but other
use cases has been requested too.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k

Test was simple to do a defconfig build, apply the patch and check
that nothing got rebuild.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      a0f97e06
  13. 03 10月, 2007 3 次提交
  15. 22 9月, 2007 1 次提交
  17. 23 8月, 2007 1 次提交
  19. 20 8月, 2007 1 次提交
  21. 17 7月, 2007 1 次提交
  23. 25 6月, 2007 1 次提交
  25. 02 6月, 2007 1 次提交
  27. 17 5月, 2007 1 次提交
  29. 12 5月, 2007 1 次提交
    • M
      [POWERPC] Add Makefile rules to wrap dts file in zImage · 916066d5
      由 Mark A. Greer 提交于 
      Add 'zImage.dts' and 'zImage.dts_initrd' build rules that automatically
compile and wrap a dts file from arch/powerpc/boot/dts into the zImage file.
The resulting zImage will be arch/powerpc/boot/zImage.dts.<platform> and
arch/powerpc/boot/zImage.dts_initrd.<platform>, respectively.

Having separate rules allows the user to choose whether to include a device
tree--and which device tree--at build time.  This is useful when one Makefile
target builds a zImage that runs on several platforms except for differing
device trees.  By just setting CONFIG_DEVICE_TREE and running "make zImage.dts"
the exact zImage you want is built without Makefile bloat or manually running
the wrapper script.

The dts file is expected to be arch/powerpc/boot/dts/$(CONFIG_DEVICE_TREE)
Signed-off-by: NMark A. Greer <mgreer@mvista.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      916066d5
  31. 02 5月, 2007 1 次提交
  33. 27 4月, 2007 2 次提交
  35. 24 4月, 2007 1 次提交
  37. 28 9月, 2006 1 次提交
    • P
      [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot · 2bf11819
      由 Paul Mackerras 提交于 
      This puts the knowledge of how to create various sorts of zImage
wrappers into a script called "wrapper" that could be used outside of
the kernel tree.  This changes arch/powerpc/boot so it first builds
the files that the wrapper script needs, then runs it to create
whatever flavours of zImage are required.

This version does uImages as well.  The zImage names are changed
slightly; zImage.pseries is the one with the PT_NOTE program header
entry added, and zImage.pmac is the one without.  If the
zImage.pseries gets made, it will also get hardlinked to zImage;
otherwise, if zImage.pmac is made, it gets hardlinked to zImage.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      2bf11819
  39. 15 6月, 2006 1 次提交
  41. 14 4月, 2006 1 次提交
    • O
      [PATCH] powerpc32: Set cpu explicitly in kernel compiles · f48b8296
      由 Olaf Hering 提交于 
      Compile the 32bit kernel with -mcpu=powerpc. This reduces the imagesize
when a compiler is used that defaults to -mtune=power4. It inserts lots
of nops to please the 64bit cpu instruction scheduling. But all these nops
are not needed for 32bit kernels.

Example with SLES10 gcc 4.1.0 and arch/powerpc/configs/pmac32_defconfig:

                    vmlinux  vmlinux.strip  vmlinux.gz
 -O2                4980515     4187528      1846829
 -Os                4618801     3827084      1673333
 -O2 -mcpu=powerpc  4738851     3945868      1816253
 -Os -mcpu=powerpc  4532785     3741068      1664688
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      f48b8296
  43. 28 3月, 2006 1 次提交
  45. 27 3月, 2006 1 次提交
    • P
      powerpc: Don't compile in arch/ppc/kernel for 32-bit ARCH=powerpc · e7e2d2da
      由 Paul Mackerras 提交于 
      All of the things needed for 32-bit ARCH=powerpc builds have now
moved to arch/powerpc/kernel, so we don't need to go down into
arch/ppc/kernel any more, and we can remove the CONFIG_PPC_MERGE
conditional from arch/ppc/kernel/Makefile.

There were two files still referenced in the merge section of
arch/ppc/kernel/Makefile: ppc-stub.o, depending on CONFIG_KGDB,
and dma-mapping.o, depending on CONFIG_NOT_COHERENT_CACHE.  None
of the platforms currently in ARCH=powerpc have caches that
aren't coherent with DMA, but when we do get one we'll move
dma-mapping.c over.  As for CONFIG_KGDB, none of the Kconfig
files in the tree define it, so I'll let it languish for now.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      e7e2d2da
  47. 06 3月, 2006 1 次提交
  49. 11 2月, 2006 1 次提交
    • A
      [PATCH] Fix building external modules on ppc32 · 70567293
      由 Andreas Gruenbacher 提交于 
      We are setting up sources for building external modules like this:

  /usr/src/linux-obj> # create a .config file
  /usr/src/linux-obj> make -C /usr/src/linux O=$PWD oldconfig
  /usr/src/linux-obj> make -C /usr/src/linux O=$PWD prepare
  /usr/src/linux-obj> make -C /usr/src/linux O=$PWD scripts
  /usr/src/linux-obj> make -C /usr/src/linux O=$PWD clean

After that, external modules can be built with:

  /usr/src/module> make -C /usr/src/linux-obj M=$PWD

This fails for ppc32 because the `make clean' removes the
arch/powerpc/include directory.  This should be done in archmrproper
instead of in archclean.
Signed-off-by: NAndreas Gruenbacher <agruen@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      70567293
  51. 10 2月, 2006 2 次提交
  53. 20 1月, 2006 1 次提交
  55. 13 1月, 2006 2 次提交
  57. 09 1月, 2006 2 次提交
  59. 25 11月, 2005 1 次提交
  61. 18 11月, 2005 2 次提交
  63. 16 11月, 2005 1 次提交