topic/mst-suspend-resume-reprobe-2019-10-29-2:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
* Handle UP requests asynchronously in the DP MST helpers, fixing
hotplug notifications and allowing us to implement suspend/resume
reprobing
* Add basic suspend/resume reprobing to the DP MST helpers
* Improve locking for link address reprobing and connection status
request handling in the DP MST helpers
* Miscellaneous refactoring in the DP MST helpers
* Add a Kconfig option to the DP MST helpers to enable tracking of
gets/puts for topology references for debugging purposes
Driver Changes:
* nouveau: Resume hotplug interrupts earlier, so that sideband
messages may be transmitted during resume and thus allow
suspend/resume reprobing for DP MST to work
* nouveau: Avoid grabbing runtime PM references when handling short DP
pulses, so that handling sideband messages in resume codepaths with the
DP MST helpers doesn't deadlock us
* i915, nouveau, amdgpu, radeon: Use detect_ctx for probing MST
connectors, so that we can grab the topology manager's atomic lock
Note: there's some amdgpu patches that I didn't realize were pushed
upstream already when creating this topic branch. When they fail to
apply, you can just ignore and skip them.
The following changes since commit 2e79e22e092acd55da0b2db066e4826d7d152c41:
Merge v5.4-rc4 into drm-next (2019-10-23 12:10:05 +0200)
are available in the Git repository at:
git://anongit.freedesktop.org/drm/drm-misc tags/topic/mst-suspend-resume-reprobe-2019-10-29-2
for you to fetch changes up to 12a280c7286857119cf0d88c487f695e3a1c0912:
drm/dp_mst: Add topology ref history tracking for debugging (2019-10-24 14:36:13 -0400)
----------------------------------------------------------------
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
* Handle UP requests asynchronously in the DP MST helpers, fixing
hotplug notifications and allowing us to implement suspend/resume
reprobing
* Add basic suspend/resume reprobing to the DP MST helpers
* Improve locking for link address reprobing and connection status
request handling in the DP MST helpers
* Miscellaneous refactoring in the DP MST helpers
* Add a Kconfig option to the DP MST helpers to enable tracking of
gets/puts for topology references for debugging purposes
Driver Changes:
* nouveau: Resume hotplug interrupts earlier, so that sideband
messages may be transmitted during resume and thus allow
suspend/resume reprobing for DP MST to work
* nouveau: Avoid grabbing runtime PM references when handling short DP
pulses, so that handling sideband messages in resume codepaths with the
DP MST helpers doesn't deadlock us
* i915, nouveau, amdgpu, radeon: Use detect_ctx for probing MST
connectors, so that we can grab the topology manager's atomic lock
Note: there's some amdgpu patches that I didn't realize were pushed
upstream already when creating this topic branch. When they fail to
apply, you can just ignore and skip them.
----------------------------------------------------------------
Lyude Paul (14):
drm/dp_mst: Destroy MSTBs asynchronously
drm/dp_mst: Remove PDT teardown in drm_dp_destroy_port() and refactor
drm/dp_mst: Refactor pdt setup/teardown, add more locking
drm/dp_mst: Handle UP requests asynchronously
drm/dp_mst: Add probe_lock
drm/dp_mst: Protect drm_dp_mst_port members with locking
drm/dp_mst: Don't forget to update port->input in drm_dp_mst_handle_conn_stat()
drm/dp_mst: Lessen indenting in drm_dp_mst_topology_mgr_resume()
drm/nouveau: Don't grab runtime PM refs for HPD IRQs
drm/nouveau: Resume hotplug interrupts earlier
drm/amdgpu: Iterate through DRM connectors correctly
drm/amdgpu/dm: Resume short HPD IRQs before resuming MST topology
drm/dp_mst: Add basic topology reprobing when resuming
drm/dp_mst: Add topology ref history tracking for debugging
drivers/gpu/drm/Kconfig | 14 +
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 13 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 20 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 5 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_encoders.c | 40 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 5 +-
drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 34 +-
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 34 +-
drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 40 +-
drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 34 +-
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 41 +-
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c | 10 +-
.../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 28 +-
drivers/gpu/drm/drm_dp_mst_topology.c | 1176 +++++++++++++++-----
drivers/gpu/drm/i915/display/intel_dp.c | 3 +-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 28 +-
drivers/gpu/drm/nouveau/dispnv50/disp.c | 38 +-
drivers/gpu/drm/nouveau/nouveau_connector.c | 33 +-
drivers/gpu/drm/nouveau/nouveau_display.c | 19 +-
drivers/gpu/drm/radeon/radeon_dp_mst.c | 24 +-
include/drm/drm_dp_mst_helper.h | 160 ++-
21 files changed, 1322 insertions(+), 477 deletions(-)
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