1. 28 May, 2018 1 commit
  2. 16 Jun, 2017 1 commit
  3. 28 Jan, 2015 1 commit
  4. 11 Jan, 2014 1 commit
    • Takashi Iwai's avatar
      ALSA: PCM: Warn when buffer preallocation fails · 6ab08ced
      Takashi Iwai authored
      The failures of buffer preallocations at driver initializations aren't
      critical but it's still helpful to inform, so that user can know that
      something doesn't work as expected.
      
      For example, the recent page allocator change triggered regressions,
      but developers didn't notice until recently because the driver didn't
      complain.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      6ab08ced
  5. 09 Jan, 2014 1 commit
    • Takashi Iwai's avatar
      ALSA: Remove memory reservation code from memalloc helper · 47d98c02
      Takashi Iwai authored
      Nowadays we have CMA for obtaining the contiguous memory pages
      efficiently.  Let's kill the old kludge for reserving the memory pages
      for large buffers.  It was rarely useful (only for preserving pages
      among module reloading or a little help by an early boot scripting),
      used only by a couple of drivers, and yet it gives too much ugliness
      than its benefit.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      47d98c02
  6. 12 Mar, 2013 1 commit
  7. 23 Sep, 2012 1 commit
  8. 31 Oct, 2011 1 commit
  9. 31 Mar, 2011 1 commit
  10. 30 Mar, 2010 1 commit
    • Tejun Heo's avatar
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo authored
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit 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: default avatarTejun Heo <tj@kernel.org>
      Guess-its-ok-by: default avatarChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  11. 21 Dec, 2009 1 commit
  12. 18 Dec, 2009 1 commit
  13. 08 Jul, 2009 1 commit
    • Takashi Iwai's avatar
      ALSA: Fix SG-buffer DMA with non-coherent architectures · cc6a8acd
      Takashi Iwai authored
      Using SG-buffers with dma_alloc_coherent() is often very inefficient
      on non-coherent architectures because a tracking record could be
      allocated in addition for each dma_alloc_coherent() call.
      Instead, simply disable SG-buffers but just allocate normal continuous
      buffers on non-supported (currently all but x86) architectures.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      cc6a8acd
  14. 25 Aug, 2008 1 commit
    • Takashi Iwai's avatar
      ALSA: Allocate larger pages in sgbuf · 51e9f2e6
      Takashi Iwai authored
      Most hardwares have limited buffer-descriptor table length.  This
      also restricts the max buffer size of the sound driver.
      For example, snd-hda-intel has 1MB buffer size limit, and this is
      because it can have at most 256 BDL entries.  For supporting larger
      buffers, we need to allocate larger pages even for sg-buffers.
      
      This patch changes the sgbuf allocation code to try to allocate
      larger pages first.  At each head of the allocated pages, the
      number of allocated pages is stored in the lowest bits of the
      corresponding entry of the table addr field.  This change isn't
      visible as long as the driver uses snd_sgbuf_get_addr() helper.
      
      Also, the patch adds a new function, snd_pcm_sgbuf_get_chunk_size().
      This returns the size of the chunk on continuous pages starting at
      the given position offset.  If the chunk reaches to a non-continuous
      page, it returns the size to the boundary.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
      51e9f2e6
  15. 13 Aug, 2008 1 commit
  16. 31 Jan, 2008 1 commit
    • Takashi Iwai's avatar
      [ALSA] Remove sound/driver.h · 9004acc7
      Takashi Iwai authored
      This header file exists only for some hacks to adapt alsa-driver
      tree.  It's useless for building in the kernel.  Let's move a few
      lines in it to sound/core.h and remove it.
      With this patch, sound/driver.h isn't removed but has just a single
      compile warning to include it.  This should be really killed in
      future.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
      9004acc7
  17. 16 Oct, 2007 1 commit
  18. 09 Feb, 2007 1 commit
  19. 23 Sep, 2006 1 commit
  20. 22 Jun, 2006 2 commits
  21. 27 Apr, 2006 1 commit
  22. 03 Jan, 2006 2 commits
  23. 12 Sep, 2005 2 commits
  24. 29 May, 2005 1 commit
    • Takashi Iwai's avatar
      [ALSA] Fix permissions in some /proc files · bd7bf042
      Takashi Iwai authored
      PCM Midlevel,CA0106 driver,EMU10K1/EMU10K2 driver
      Fix by Guillaume Chazarain <guichaz@yahoo.fr>:
      
      Some tunables in /proc have a write() function, but as their
      permission does not reflect it, it can be confusing to the user.
      
      So here is a patch that corrects the mode of those files. Note that I
      have only tested the 'xrun_debug' entry.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      bd7bf042
  25. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      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!
      1da177e4