[PATCH v2 0/9] Adding private objects to atomic state
Dhinakaran Pandiyan
dhinakaran.pandiyan at intel.com
Tue Jan 24 23:49:28 UTC 2017
Link bandwidth is shared between multiple display streams in DP MST
configurations. The DP MST topology manager structure maintains the shared
link bandwidth for a primary link directly connected to the GPU. For atomic
modesetting drivers, checking if there is sufficient link bandwidth for a
mode needs to be done during the atomic_check phase to avoid failed
modesets.
But adding objects like DP MST link bandwidth to drm_atomic_state would
mean that a non-core object will be modified by the core helper functions
for swapping and clearing it's state. So, this series adds void * objects
to drm_atomic_state and helper functions that operate on void * types to
keep these objects and states private to the core. Drivers can then
implement specific functions to swap and clear states. The other advantage
having just void * for these objects in drm_atomic_state is that objects of
different types can be managed in the same state array.
This series also includes some necessary cleanups.
Dhinakaran Pandiyan (9):
drm/dp: Store drm_device in MST topology manager
drm/dp: Kill unused MST vcpi slot availability tracking
drm/dp: Split drm_dp_mst_allocate_vcpi
drm: Add driver private objects to atomic state
drm/dp: Introduce MST topology state
drm/dp: Add DP MST helpers to atomically find and release vcpi slots
drm: Connector helper function to release atomic state
drm/dp: Release DP MST shared link bandwidth
drm/dp: Track MST link bandwidth
drivers/gpu/drm/drm_atomic.c | 55 ++++++++++++
drivers/gpu/drm/drm_atomic_helper.c | 15 +++-
drivers/gpu/drm/drm_dp_mst_topology.c | 143 ++++++++++++++++++++++++++-----
drivers/gpu/drm/i915/intel_dp_mst.c | 48 ++++++++++-
drivers/gpu/drm/nouveau/nv50_display.c | 5 +-
drivers/gpu/drm/radeon/radeon_dp_mst.c | 6 +-
include/drm/drm_atomic.h | 30 +++++++
include/drm/drm_dp_mst_helper.h | 37 +++++---
include/drm/drm_modeset_helper_vtables.h | 15 ++++
9 files changed, 313 insertions(+), 41 deletions(-)
--
2.7.4
More information about the dri-devel
mailing list