Skip to content

cloud-kernel
cloud-kernel

openanolis / cloud-kernel
1 年多 前同步成功

通知 160
Star 36
Fork 7
cloud-kernel
cloud-kernel
切换分支/标签
  1. 28 4月, 2016 1 次提交
  3. 27 4月, 2016 1 次提交
    • D
      drm: Switch blobs to the new generic modeset obj refcounting · 152ef5fa
      由 Daniel Vetter 提交于 
      Need to move the free function around a bit, but otherwise mostly
just removing code.

Specifically we can nuke all the _locked variants since the weak idr
reference is now protected by the idr_mutex, which we never hold
anywhere expect in the lookup/reg/unreg functions. And those never
call anything else.

Another benefit of this is that this patch switches the weak reference
logic from kref_put_mutex to kref_get_unless_zero. And the later is in
general more flexible wrt accomodating multiple weak references
protected by different locks, which might or might not come handy
eventually.

But one consequence of that switch is that we need to acquire the
blob_lock from the free function for the list_del calls. That's a bit
tricky to pull off, but works well if we pick the exact same scheme as
is already used for framebuffers. Most important changes:

- filp list is maintainer by create/destroy_blob ioctls directly
  (already the case, so we can just remove the redundant list_del from
  the free function).

- filp close handler walks the filp-private list lockless - works
  because we know no one else can access it. I copied the same comment
  from the fb code over to explain this.

- Otherwise we need to sufficiently restrict blob_lock critical
  sections to avoid all the unreference calls. Easy to do once the
  blob_lock only protects the list, and no longer the weak reference.

Cc: Dave Airlie <airlied@gmail.com>
Cc: Daniel Stone <daniels@collabora.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      152ef5fa
  5. 22 4月, 2016 2 次提交
  7. 20 4月, 2016 4 次提交
  9. 15 4月, 2016 1 次提交
  11. 14 4月, 2016 1 次提交
  13. 12 4月, 2016 1 次提交
  15. 05 4月, 2016 3 次提交
  17. 31 3月, 2016 2 次提交
  19. 30 3月, 2016 1 次提交
  21. 29 3月, 2016 2 次提交
  23. 08 3月, 2016 2 次提交
  25. 03 3月, 2016 5 次提交
  27. 01 3月, 2016 2 次提交
  29. 19 2月, 2016 1 次提交
    • M
      drm/atomic: Allow for holes in connector state, v2. · 5fff80bb
      由 Maarten Lankhorst 提交于 
      Because we record connector_mask using 1 << drm_connector_index now
the connector_mask should stay the same even when other connectors
are removed. This was not the case with MST, in that case when removing
a connector all other connectors may change their index.

This is fixed by waiting until the first get_connector_state to allocate
connector_state, and force reallocation when state is too small.

As a side effect connector arrays no longer have to be preallocated,
and can be allocated on first use which means a less allocations in
the page flip only path.

Changes since v1:
- Whitespace. (Ville)
- Call ida_remove when destroying the connector. (Ville)
- u32 alloc -> int. (Ville)

Fixes: 14de6c44 ("drm/atomic: Remove drm_atomic_connectors_for_crtc.")
Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NLyude <cpaul@redhat.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      5fff80bb
  31. 16 2月, 2016 1 次提交
  33. 12 2月, 2016 2 次提交
  35. 11 2月, 2016 1 次提交
  37. 10 2月, 2016 1 次提交
  39. 09 2月, 2016 5 次提交
  41. 08 2月, 2016 1 次提交