diff options
| author | Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> | 2023-12-05 08:01:15 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-01-03 18:47:12 +0300 |
| commit | 59f1622a5f05d948a7c665a458a3dd76ba73015e (patch) | |
| tree | e6910bbda89529fb727466a9cc219f419ad00871 /drivers/gpu/drm/amd/display/dc/dc.h | |
| parent | 4e7738bcfb6765ca669fdbd2be2f7f6f239ed3e5 (diff) | |
| download | linux-59f1622a5f05d948a7c665a458a3dd76ba73015e.tar.xz | |
drm/amd/display: Add dpia display mode validation logic
[Why]
If bandwidth allocation feature is enabled, connection manager wont
limit the dp tunnel bandwidth. So, need to do display mode validation
for streams on dpia links to avoid oversubscription of dp tunnel
bandwidth.
[How]
- To read non reduced link rate and lane count and update
reported link capability.
- To calculate the bandwidth required for streams of dpia links
per host router and validate against the allocated bandwidth for
the host router.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: PeiChen Huang <peichen.huang@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index c2ee80d6f64c..565de7428b6c 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -2172,11 +2172,11 @@ int dc_link_dp_dpia_handle_usb4_bandwidth_allocation_for_link( * * @dc: pointer to dc struct * @stream: pointer to all possible streams - * @num_streams: number of valid DPIA streams + * @count: number of valid DPIA streams * * return: TRUE if bw used by DPIAs doesn't exceed available BW else return FALSE */ -bool dc_link_validate(struct dc *dc, const struct dc_stream_state *streams, +bool dc_link_dp_dpia_validate(struct dc *dc, const struct dc_stream_state *streams, const unsigned int count); /* Sink Interfaces - A sink corresponds to a display output device */ |