1. 07 Jun, 2010 1 commit
  2. 17 May, 2010 1 commit
  3. 22 Apr, 2010 1 commit
  4. 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
  5. 28 Feb, 2010 1 commit
    • Dave Airlie's avatar
      vga_switcheroo: initial implementation (v15) · 6a9ee8af
      Dave Airlie authored
      
      
      Many new laptops now come with 2 gpus, one to be used for low power
      modes and one for gaming/on-ac applications. These GPUs are typically
      wired to the laptop panel and VGA ports via a multiplexer unit which
      is controlled via ACPI methods.
      
      4 combinations of systems typically exist - with 2 ACPI methods.
      Intel/ATI - Lenovo W500/T500 - use ATPX ACPI method
      ATI/ATI - some ASUS - use ATPX ACPI Method
      Intel/Nvidia - - use _DSM ACPI method
      Nvidia/Nvidia -  - use _DSM ACPI method.
      
      TODO:
      This patch adds support for the ATPX method and initial bits
      for the _DSM methods that need to written by someone with
      access to the hardware.
      Add a proper non-debugfs interface - need to get some proper
      testing first.
      
      v2: add power up/down support for both devices
      on W500 puts i915/radeon into D3 and cuts power to radeon.
      
      v3: redo probing methods, no DMI list, drm devices call to
      register with switcheroo, it tries to find an ATPX method on
      any device and once there is two devices + ATPX it inits the
      switcher.
      
      v4: ATPX msg handling using buffers - should work on more machines
      
      v5: rearchitect after more mjg59 discussion - move ATPX handling to
          radeon driver.
      
      v6: add file headers + initial nouveau bits (to be filled out).
      
      v7: merge delayed switcher code.
      
      v8: avoid suspend/resume of gpu that is off
      
      v9: rearchitect - mjg59 is always right. - move all ATPX code to
      radeon, should allow simpler DSM also proper ATRM handling
      
      v10: add ATRM support for radeon BIOS, add mutex to lock vgasr_priv
      
      v11: fix bug in resuming Intel for 2nd time.
      
      v12: start fixing up nvidia code blindly.
      
      v13: blindly guess at finishing nvidia code
      
      v14: remove radeon audio hacks - fix up intel resume more like upstream
      
      v15: clean up printks + remove unnecessary igd/dis pointers
      
      mount debugfs
      
      /sys/kernel/debug/vgaswitcheroo/switch - should exist if ATPX detected
       + 2 cards.
      
      DIS - immediate change to discrete
      IGD - immediate change to IGD
      DDIS - delayed change to discrete
      DIGD - delayed change to IGD
      ON - turn on not in use
      OFF - turn off not in use
      
      Tested on W500 (Intel/ATI) and T500 (Intel/ATI)
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      6a9ee8af
  6. 08 Feb, 2010 1 commit
  7. 09 Dec, 2009 1 commit
  8. 24 Sep, 2009 1 commit
  9. 18 Sep, 2009 1 commit
  10. 10 Sep, 2009 1 commit
  11. 21 Aug, 2009 1 commit
  12. 20 Aug, 2009 1 commit
  13. 15 Aug, 2009 1 commit
  14. 03 Aug, 2009 1 commit
    • Xiaotian Feng's avatar
      drm/radeon/kms: fix memory leak in radeon_driver_load_kms · c9b7fb54
      Xiaotian Feng authored
      
      
      This patch fixes following kmemleak report:
      unreferenced object 0xffff88022cb53000 (size 4096):
        comm "work_for_cpu", pid 97, jiffies 4294672345
        backtrace:
          [<ffffffff810eb222>] create_object+0x19f/0x2a0
          [<ffffffff810eb422>] kmemleak_alloc+0x26/0x4c
          [<ffffffff810e363f>] __kmalloc+0x187/0x1b0
          [<ffffffffa005f3db>] kzalloc.clone.0+0x13/0x15 [radeon]
          [<ffffffffa005f403>] radeon_driver_load_kms+0x26/0xe1 [radeon]
          [<ffffffffa0017432>] drm_get_dev+0x37f/0x480 [drm]
          [<ffffffffa007f424>] radeon_pci_probe+0x15/0x269 [radeon]
          [<ffffffff811f8779>] local_pci_probe+0x17/0x1b
          [<ffffffff8105ffbb>] do_work_for_cpu+0x18/0x2a
          [<ffffffff81063c38>] kthread+0x8a/0x92
          [<ffffffff81012cba>] child_rip+0xa/0x20
          [<ffffffffffffffff>] 0xffffffffffffffff
      Signed-off-by: default avatarXiaotian Feng <dfeng@redhat.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      c9b7fb54
  15. 28 Jul, 2009 1 commit
    • Dave Airlie's avatar
      drm/radeon/kms: add initial colortiling support. · e024e110
      Dave Airlie authored
      
      
      This adds new set/get tiling interfaces where the pitch
      and macro/micro tiling enables can be set. Along with
      a flag to decide if this object should have a surface when mapped.
      
      The only thing we need to allocate with a mapped surface should be
      the frontbuffer. Note rotate scanout shouldn't require one, and
      back/depth shouldn't either, though mesa needs some fixes.
      
      It fixes the TTM interfaces along Thomas's suggestions, and I've tested
      the surface stealing code with two X servers and not seen any lockdep issues.
      
      I've stopped tiling the fbcon frontbuffer, as I don't see there being
      any advantage other than testing, I've left the testing commands in there,
      just flip the fb_tiled to true in radeon_fb.c
      
      Open: Can we integrate endian swapping in with this?
      
      Future features:
      texture tiling - need to relocate texture registers TXOFFSET* with tiling info.
      
      This also merges Michel's cleanup surfaces regs at init time patch
      even though it makes sense on its own, this patch really relies on it.
      
      Some PowerMac firmwares set up a tiling surface at the beginning of VRAM
      which messes us up otherwise.
      that patch is:
      Signed-off-by: default avatarMichel Dänzer <daenzer@vmware.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      e024e110
  16. 18 Jun, 2009 1 commit
  17. 17 Jun, 2009 1 commit
  18. 14 Jun, 2009 1 commit
    • Jerome Glisse's avatar
      drm/radeon: introduce kernel modesetting for radeon hardware · 771fe6b9
      Jerome Glisse authored
      
      
      Add kernel modesetting support to radeon driver, use the ttm memory
      manager to manage memory and DRM/GEM to provide userspace API.
      In order to avoid backward compatibility issue and to allow clean
      design and code the radeon kernel modesetting use different code path
      than old radeon/drm driver.
      
      When kernel modesetting is enabled the IOCTL of radeon/drm
      driver are considered as invalid and an error message is printed
      in the log and they return failure.
      
      KMS enabled userspace will use new API to talk with the radeon/drm
      driver. The new API provide functions to create/destroy/share/mmap
      buffer object which are then managed by the kernel memory manager
      (here TTM). In order to submit command to the GPU the userspace
      provide a buffer holding the command stream, along this buffer
      userspace have to provide a list of buffer object used by the
      command stream. The kernel radeon driver will then place buffer
      in GPU accessible memory and will update command stream to reflect
      the position of the different buffers.
      
      The kernel will also perform security check on command stream
      provided by the user, we want to catch and forbid any illegal use
      of the GPU such as DMA into random system memory or into memory
      not owned by the process supplying the command stream. This part
      of the code is still incomplete and this why we propose that patch
      as a staging driver addition, future security might forbid current
      experimental userspace to run.
      
      This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX
      (radeon up to X1950). Works is underway to provide support for R6XX,
      R7XX and newer hardware (radeon from HD2XXX to HD4XXX).
      
      Authors:
          Jerome Glisse <jglisse@redhat.com>
          Dave Airlie <airlied@redhat.com>
          Alex Deucher <alexdeucher@gmail.com>
      Signed-off-by: default avatarJerome Glisse <jglisse@redhat.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      771fe6b9