diff options
author | Jun Lei <Jun.Lei@amd.com> | 2018-11-23 23:21:02 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-14 23:04:37 +0300 |
commit | 04a789bef315a3ed64f296fab21be3933405ea43 (patch) | |
tree | 5e1c25990ac0959021c4dc09dab77651ba5e5e2e /drivers/gpu/drm/amd/display/dc/dc_types.h | |
parent | fb57452fb4023a8efeb25efd468f53b292ba414e (diff) | |
download | linux-04a789bef315a3ed64f296fab21be3933405ea43.tar.xz |
drm/amd/display: add stream ID and otg instance in dc_stream_state
[why]
stream ID allows DMs to avoid memory address comparisons to compare
stream equality.
otg_instance allows DC to more rigorously define when otg_instance
can change. specifically, it is now defined to be only mutable when dc_stream_state
changes. This is better than a "get status" function which prevents efficient
caching of otherwise very stable information.
[how]
stream ID follows similar pattern to sink ID, which is already implemented
otg_instance is an output which occurs on all dc_stream modification functions
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_types.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_types.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index 0b20ae23f169..07cd165c389c 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -99,6 +99,7 @@ struct dc_context { struct gpio_service *gpio_service; struct i2caux *i2caux; uint32_t dc_sink_id_count; + uint32_t dc_stream_id_count; uint64_t fbc_gpu_addr; }; |