Doug / smarc-fsl-linux-kernel

10 Aug, 2010

2 commits

18 May, 2010

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

28 Feb, 2010

6 commits

27 Mar, 2009

2 commits

13 Jan, 2009

2 commits

29 Dec, 2008

4 commits

  • 746e8d3b2   m68k: mac baboon interrupt enable/disable ... Browse Code »

    No-one seems to know how to mask individual baboon interrupts, so we just
    mask the umbrella IRQ. This will work as long as only the IDE driver uses
    the baboon chip (it can't deadlock). Use mac_enable_irq/mac_disable_irq
    rather than enable_irq/disable_irq because the latter routines count the
    depth of nested calls which triggers a warning and call trace because
    IRQ_NUBUS_C is enabled twice in a row (once when the baboon handler is
    registered, and once when the IDE IRQ is registered).

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven

    Finn Thain
     
  • 429dbf53b   m68k: machw.h cleanup ... Browse Code »

    Remove some more cruft from machw.h and drop the #include where it isn't
    needed.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven

    Finn Thain
     
  • 4a973592d   m68k: Mac via cleanup and commentry ... Browse Code »

    No behavioural changes, just cleanups and better documentation.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven

    Finn Thain
     
  • 40f7f9c1c   m68k: Reinstate mac rtc ... Browse Code »

    Reinstate the Mac hardware clock for CUDA ADB and Mac II ADB models.
    It doesn't work properly on Mac IIsi ADB and PMU ADB yet, so leave them
    out.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven

    Finn Thain
     

06 Aug, 2008

1 commit

  • 0e25f7106   remove unneeded #include <linux/ide.h>'s ... Browse Code »

    This patch remove unneeded #include 's.

    It also adds a required #include that was previously
    implicitely pulled by ide.h

    Signed-off-by: Adrian Bunk
    [bart: revert change to tests/lkdtm.c (spotted by Stephen Rothwell)]
    Signed-off-by: Bartlomiej Zolnierkiewicz

    Adrian Bunk
     

21 Jul, 2008

1 commit

  • 8dfbdf4ab   m68k/mac/: possible cleanups ... Browse Code »

    This patch contains the following possible cleanups:
    - make the following needlessly global code (always) static:
    - baboon.c: struct baboon
    - baboon.c: baboon_irq()
    - config.c: mac_orig_videoaddr
    - config.c: mac_identify()
    - config.c: mac_report_hardware()
    - config.c: mac_debug_console_write()
    - config.c: mac_sccb_console_write()
    - config.c: mac_scca_console_write()
    - config.c: mac_init_scc_port()
    - oss.c: oss_irq()
    - oss.c: oss_nubus_irq()
    - psc.c: psc_debug_dump()
    - psc.c: psc_dma_die_die_die()
    - via.c: rbv_clear
    - remove the unused bootparse.c
    - #if 0 the following unused functions:
    - config.c: mac_debugging_short()
    - config.c: mac_debugging_long()
    - remove the following unused code:
    - config.c: mac_bisize
    - config.c: mac_env
    - config.c: mac_SCC_init_done
    - config.c: mac_SCC_reset_done
    - config.c: mac_init_scca_port()
    - config.c: mac_init_sccb_port()

    Signed-off-by: Adrian Bunk
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

06 May, 2008

1 commit

  • b6d9d267f   m68k: remove old mac_esp cruft ... Browse Code »

    Remove the rest of the old mac_esp driver. Also ditch the rest of the
    machw mechanism, it needs to be replaced by a fake openfirmware tree.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     

29 Apr, 2008

2 commits

  • 512515491   proc: remove /proc/mac_iop ... Browse Code »

    Entry creation was commented for a long time and right now it stands on
    the way of ->get_info removal, so unless nobody objects...

    Signed-off-by: Alexey Dobriyan
    Cc: Simon Arlott
    Cc: Roman Zippel
    Cc: Joern Engel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     
  • c74c120a2   proc: remove proc_root from drivers ... Browse Code »

    Remove proc_root export. Creation and removal works well if parent PDE is
    supplied as NULL -- it worked always that way.

    So, one useless export removed and consistency added, some drivers created
    PDEs with &proc_root as parent but removed them as NULL and so on.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

28 Apr, 2008

1 commit

06 Feb, 2008

2 commits

20 Oct, 2007

1 commit

20 Jul, 2007

2 commits

01 Jun, 2007

1 commit

08 May, 2007

1 commit

05 May, 2007

7 commits

  • 217f6710c   m68k: Mac IRQ cleanup ... Browse Code »

    There are no slow IRQs on Macs since Roman Zippel's IRQ reorganisation that
    went into 2.6.16 and removed mac_irq_list[] and the do_mac_irq_list()
    dispatcher. (They were implemented in do_mac_irq_list() by lowering the IPL.)
    Hence there's no more use for mutual exclusion in the Mac interrupt
    dispatchers. Remove it.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     
  • cd713ddc9   m68k: Mac nubus IRQ fixes (plan E) ... Browse Code »

    Some Macs lack a slot interrupt enable register. So the existing code makes
    disabled and unregistered slot IRQ lines outputs set high. This seems to work
    on quadras, but does not work on genuine VIAs (perhaps the card still succeeds
    in pulling the line low, or perhaps because this increases the settle time on
    the port A input, meaning that the CA1 IRQ could fire before the slot line
    reads active).

    Because of this, the nubus_active flags were used to mask IRQs, which is
    actually worse than the problem it tries to solve. Any interrupt masked by
    nubus_active will remain asserted and prevent further transitions on CA1. And
    so the nubus gets wedged regardless of hardware (emulated VIA ASIC, real VIA
    chip or RBV).

    The best solution to this hardware limitation of genuine VIAs is to disable the
    umbrella SLOTS IRQ when disabling a slot on those machines. Unfortunately, this
    means all slot IRQs get disabled when any slot IRQ is disabled. But it is only
    a problem when there's more than 1 device using nubus interrupts.

    Another potential problem for genuine VIAs is an unregistered nubus IRQ.
    Eventually it will be possible to enable the CA1 interrupt by installing its
    handler only _after_ all nubus drivers have loaded but _before_ the kernel
    needs them, at which time this last problem can be fixed. For now it can be
    worked around:

    - disable MacOS extensions
    - don't boot MacOS (use the Emile bootloader instead)
    - get the bootloaders to disable ROM drivers (Penguin does this for video
    cards already, don't know about Emile)
    - physically remove unsupported cards

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     
  • 67dfb153a   m68k: Mac IRQ prep ... Browse Code »

    Make sure that there are no slot IRQs asserted before leaving the nubus
    handler. If there are and we don't then the nubus gets wedged because this
    prevents a CA1 transition, which means no more nubus IRQs.

    Make the interrupt dispatch loops terminate sooner.

    Explicitly initialise the VIA latches to make the code more easily understood.

    Also some cleanups.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     
  • 647b804c8   m68k: reverse Mac IRQ damage ... Browse Code »

    Reverse the last of a monumental brown-paper-bag commit that went into the 2.3
    kernel.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     
  • e10e5c432   m68k: Mac interrupt priorities ... Browse Code »

    Add some more machines that support A/UX interrupt priorities. There are
    probably others as well, but I've only tested these ones so far.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     
  • d6713b409   m68k: early parameter support ... Browse Code »

    Add early parameter support and convert current users to it.

    Signed-off-by: Roman Zippel
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Roman Zippel
     
  • 6ff5801ac   m68k: reformat various m68k files ... Browse Code »

    Reformat various m68k files, so they actually look like Linux sources.

    Signed-off-by: Roman Zippel
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Roman Zippel
     

09 Oct, 2006

1 commit

  • 40220c1a1   IRQ: Use the new typedef for interrupt handler function pointers ... Browse Code »

    Use the new typedef for interrupt handler function pointers rather than
    actually spelling out the full thing each time. This was scripted with the
    following small shell script:

    #!/bin/sh
    egrep -nHrl -e 'irqreturn_t[ ]*[(][*]' $* |
    while read i
    do
    echo $i
    perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $?
    done

    Signed-Off-By: David Howells

    David Howells
     

08 Oct, 2006

1 commit

  • 2850bc273   [PATCH] m68k pt_regs fixes ... Browse Code »

    m68k_handle_int() split in two functions: __m68k_handle_int() takes
    pt_regs * and does set_irq_regs(); m68k_handle_int() doesn't get pt_regs
    *.

    Places where we used to call m68k_handle_int() recursively with the same
    pt_regs have simply lost the second argument, the rest is switched to
    __m68k_handle_int().

    The rest of patch is just dropping pt_regs * where needed.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro