1. 24 9月, 2013 2 次提交
  2. 23 9月, 2013 9 次提交
  3. 21 9月, 2013 6 次提交
  4. 20 9月, 2013 4 次提交
  5. 19 9月, 2013 4 次提交
    • D
      drm/fb-helper: don't sleep for screen unblank when an oops is in progress · 928c2f0c
      Daniel Vetter 提交于
      Otherwise the system will burn even brighter and worse, leave the user
      wondering what's going on exactly.
      
      Since we already have a panic handler which will (try) to restore the
      entire fbdev console mode, we can just bail out.  Inspired by a patch from
      Konstantin Khlebnikov.  The callchain leading to this, cut&pasted from
      Konstantin's original patch:
      
      callstack:
      panic()
      bust_spinlocks(1)
      unblank_screen()
      vc->vc_sw->con_blank()
      fbcon_blank()
      fb_blank()
      info->fbops->fb_blank()
      drm_fb_helper_blank()
      drm_fb_helper_dpms()
      drm_modeset_lock_all()
      mutex_lock(&dev->mode_config.mutex)
      
      Note that the entire locking in the fb helper around panic/sysrq and kdbg
      is ...  non-existant.  So we have a decent change of blowing up
      everything.  But since reworking this ties in with funny concepts like the
      fbdev notifier chain or the impressive things which happen around
      console_lock while oopsing, I'll leave that as an exercise for braver
      souls than me.
      Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
      Cc: Dave Airlie <airlied@gmail.com>
      Reviewed-by: NRob Clark <robdclark@gmail.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NDave Airlie <airlied@redhat.com>
      928c2f0c
    • P
      drm, ttm Fix uninitialized warning · bcf73a10
      Prarit Bhargava 提交于
      Fix uninitialized warning.
      
      drivers/gpu/drm/ttm/ttm_object.c: In function ‘ttm_base_object_lookup’:
      drivers/gpu/drm/ttm/ttm_object.c:213:10: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
        kref_put(&base->refcount, ttm_release_base);
                ^
      drivers/gpu/drm/ttm/ttm_object.c:221:26: note: ‘base’ was declared here
        struct ttm_base_object *base;
      Signed-off-by: NPrarit Bhargava <prarit@redhat.com>
      Reviewed-by: NRob Clark <robdclark@gmail.com>
      Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com>
      Signed-off-by: NDave Airlie <airlied@redhat.com>
      bcf73a10
    • B
      drm/ttm: fix the tt_populated check in ttm_tt_destroy() · 182b17c8
      Ben Skeggs 提交于
      After a vmalloc failure in ttm_dma_tt_alloc_page_directory(),
      ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up
      inside the driver's unpopulate() hook when populate() has never yet
      been called.
      
      On nouveau, the first issue to be hit because of this is that
      dma_address[] may be a NULL pointer.  After working around this,
      ttm_pool_unpopulate() may potentially hit the same issue with
      the pages[] array.
      
      It seems to make more sense to avoid calling unpopulate on already
      unpopulated TTMs than to add checks to all the implementations.
      Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
      Reviewed-by: NThomas Hellstrom <thellstrom@vmware.com>
      Cc: stable@vger.kernel.org
      Cc: Jerome Glisse <jglisse@redhat.com>
      Signed-off-by: NDave Airlie <airlied@redhat.com>
      182b17c8
    • D
      Merge branch 'drm-nouveau-next' of... · 4f7d1bc9
      Dave Airlie 提交于
      Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
      
      A couple of bios parser fixes (one for ancient chips, another for new ones - important in Optimus configs).  Another to make sure KMS is enabled on certain Optimus configs, and a TTM failure path fix.
      
      * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
        drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path
        drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM
        drm/nouveau/kms: enable for non-vga pci classes
        drm/nouveau/bios/init: stub opcode 0xaa
      4f7d1bc9
  6. 18 9月, 2013 2 次提交
  7. 17 9月, 2013 4 次提交
  8. 16 9月, 2013 9 次提交