diff options
| author | Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> | 2021-10-25 18:38:22 -0400 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2021-10-25 21:21:07 -0400 |
| commit | d6c6a76f80a1c91dceacef3630a7465ece630615 (patch) | |
| tree | 493d0b950d67ef0009420b59a98e75151043ec34 /include/drm/drm_gem_vram_helper.h | |
| parent | 0332078398d0a3d99a59347c3a896896ccac2cc1 (diff) | |
drm: Update MST First Link Slot Information Based on Encoding Format
8b/10b encoding format requires to reserve the first slot for
recording metadata. Real data transmission starts from the second slot,
with a total of available 63 slots available.
In 128b/132b encoding format, metadata is transmitted separately
in LLCP packet before MTP. Real data transmission starts from
the first slot, with a total of 64 slots available.
v2:
* Move total/start slots to mst_state, and copy it to mst_mgr in
atomic_check
v3:
* Only keep the slot info on the mst_state
* add a start_slot parameter to the payload function, to facilitate non
atomic drivers (this is a temporary workaround and should be removed when
we are moving out the non atomic driver helpers)
v4:
*fixed typo and formatting
v5: (no functional changes)
* Fixed formatting in drm_dp_mst_update_slots()
* Reference mst_state instead of mst_state->mgr for debugging info
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
[v5 nitpicks]
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211025223825.301703-3-lyude@redhat.com
Diffstat (limited to 'include/drm/drm_gem_vram_helper.h')
0 files changed, 0 insertions, 0 deletions