17 Jun, 2010

1 commit


30 Mar, 2010

1 commit

  • …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
     

01 Apr, 2009

1 commit


17 Oct, 2007

2 commits

  • There is a test in tgafb_mono_imageblit() for a colour image with a fall-back
    to cfb_imageblit(). The test is not necessary as the only caller, which is
    tgafb_imageblit(), checks it too and only invokes this function for monochrome
    images. It looks like a left-over from before some changes to
    tgafb_imageblit().

    Signed-off-by: Maciej W. Rozycki
    Cc: Antonino Daplas
    Cc: Jay Estabrook
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • The pixel mask calculation in tgafb_mono_imageblit() uses a variable
    left-shift on a 32-bit data type by up to 32. Shifting by the width of a data
    type or more produces an unpredictable result according to the C standard.

    Rather than widening the data type this fix makes sure the count is between 0
    and 31. The reason is not to penalise 32-bit platforms with operation on a
    "long long" type for a marginal case that is meant not to happen (blitting an
    image of a zero width).

    The reason it has escaped for so long is the Alpha, being purely 64-bit, :-)
    does not mask the shift out to 32 bits. This is a valid implementation --
    producing the correct result certainly falls within "unpredictable behaviour".
    It does trigger on MIPS though and it is the recent merge of the TC support
    which only enabled the driver for use on anything other than the Alpha. For
    MIPS when the width is 32 the mask ends up being 0 rather than 0xffffffff as
    it should be and the frame buffer is not updated.

    Signed-off-by: Maciej W. Rozycki
    Cc: Antonino Daplas
    Cc: Jay Estabrook
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     

27 Jul, 2007

1 commit


18 Jul, 2007

1 commit


12 Jul, 2007

1 commit

  • Instead of all drivers reading pci config space to get the revision
    ID, they can now use the pci_device->revision member.

    This exposes some issues where drivers where reading a word or a dword
    for the revision number, and adding useless error-handling around the
    read. Some drivers even just read it for no purpose of all.

    In devices where the revision ID is being copied over and used in what
    appears to be the equivalent of hotpath, I have left the copy code
    and the cached copy as not to influence the driver's performance.

    Compile tested with make all{yes,mod}config on x86_64 and i386.

    Signed-off-by: Auke Kok
    Acked-by: Dave Jones
    Signed-off-by: Greg Kroah-Hartman

    Auke Kok
     

09 May, 2007

2 commits

  • Add accelerated panning and accelerated color and mono image drawing.
    Please apply.

    Signed-off-by: James Simmons
    Acked-by: Maciej W. Rozycki (tested, too!)
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    James Simmons
     
  • This is support for the TC variations of the TGA boards (properly known as
    SFB+ or Smart Frame Buffer Plus boards). The 8-plane SFB+ board uses the
    Bt459 RAMDAC (unlike its PCI TGA counterpart, which uses the Bt485), so
    bits have been added to support this chip as well.

    Signed-off-by: Maciej W. Rozycki
    Cc: "Antonino A. Daplas"
    Cc: James Simmons
    Acked-by: Ralf Baechle
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     

15 Feb, 2007

1 commit

  • After Al Viro (finally) succeeded in removing the sched.h #include in module.h
    recently, it makes sense again to remove other superfluous sched.h includes.
    There are quite a lot of files which include it but don't actually need
    anything defined in there. Presumably these includes were once needed for
    macros that used to live in sched.h, but moved to other header files in the
    course of cleaning it up.

    To ease the pain, this time I did not fiddle with any header files and only
    removed #includes from .c-files, which tend to cause less trouble.

    Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
    arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
    allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
    configs in arch/arm/configs on arm. I also checked that no new warnings were
    introduced by the patch (actually, some warnings are removed that were emitted
    by unnecessarily included header files).

    Signed-off-by: Tim Schmielau
    Acked-by: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tim Schmielau
     

13 Feb, 2007

7 commits

  • The end marker is missing from the driver's PCI ID table. This set of
    changes adds the marker, switches to using PCI_DEVICE() and records the
    table for the use in a module.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • This sets up the deep register of the TGA ASIC as well as the blank pedestal
    of the Bt463 RAMDAC correctly for the sync-on-green mode.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • This is a set of clean-ups for the module support in the driver -- __devinit
    and __devexit classifiers are now specified correctly, initialization
    functions are marked static and a few unnecessary #ifdefs are removed.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • There is no need to set the GE bit (Win32 compatibility) in the mode register;
    it shall get cleared with the next subsequent update to the register anyway.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • The 32-plane variations of the TGA use the Bt463 RAMDAC and are therefore
    DirectColor rather than TrueColor adapters. This is a set of changes to
    implement the necessary bits to support this model. A couple of fixes to fix
    accesses to the RAMDAC are included as a side-effect.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • The direction of copying in the copyarea functions is selected incorrectly,
    resulting in corruption. This is a fix.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • This is a set of changes to update the driver to the framebuffer_alloc() API.
    Included, there is also a fix to a memory leak due to the colour map
    allocation not being freed upon driver's removal. Aside from the fix there
    are no functional changes.

    Signed-off-by: Maciej W. Rozycki
    Cc: James Simmons
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     

09 Dec, 2006

2 commits


11 Jul, 2006

1 commit

  • MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a
    function of the VT layer than the TTY one. Moving these to vt.h and vt_kern.h
    allows all of the framebuffer and VT console drivers to remove their
    dependency on tty.h.

    [akpm@osdl.org: fix alpha build]
    Signed-off-by: Jon Smirl
    Signed-off-by: Antonino Daplas
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jon Smirl
     

27 Jun, 2006

1 commit

  • Remove unneeded duplicate #include's of the same header file.

    In the case of fbmon.c linux/pci.h is now #include'd unconditional, but
    this should be safe.

    Signed-off-by: Adrian Bunk
    Signed-off-by: Antonino Daplas
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

07 Nov, 2005

1 commit

  • According to Jon Smirl, filling in the field fb_cursor with soft_cursor for
    drivers that do not support hardware cursors is redundant. The soft_cursor
    function is usable by all drivers because it is just a wrapper around
    fb_imageblit. And because soft_cursor is an fbcon-specific hook, the file is
    moved to the console directory.

    Thus, drivers that do not support hardware cursors can leave the fb_cursor
    field blank. For drivers that do, they can fill up this field with their own
    version.

    The end result is a smaller code size. And if the framebuffer console is not
    loaded, module/kernel size is also reduced because the soft_cursor module will
    also not be loaded.

    Signed-off-by: Antonino Daplas
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Antonino A. Daplas
     

22 Apr, 2005

1 commit


17 Apr, 2005

1 commit

  • Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds