diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 50 |
1 files changed, 11 insertions, 39 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index 11e5784aa62a..4882b47e85ef 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -182,15 +182,19 @@ bool dm_helpers_dp_mst_write_payload_allocation_table( bool enable) { struct amdgpu_dm_connector *aconnector; + struct dm_connector_state *dm_conn_state; struct drm_dp_mst_topology_mgr *mst_mgr; struct drm_dp_mst_port *mst_port; - int slots = 0; bool ret; - int clock; - int bpp = 0; - int pbn = 0; aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context; + /* Accessing the connector state is required for vcpi_slots allocation + * and directly relies on behaviour in commit check + * that blocks before commit guaranteeing that the state + * is not gonna be swapped while still in use in commit tail */ + + dm_conn_state = to_dm_connector_state(aconnector->base.state); + if (!aconnector || !aconnector->mst_port) return false; @@ -203,42 +207,10 @@ bool dm_helpers_dp_mst_write_payload_allocation_table( mst_port = aconnector->port; if (enable) { - clock = stream->timing.pix_clk_100hz / 10; - - switch (stream->timing.display_color_depth) { - - case COLOR_DEPTH_666: - bpp = 6; - break; - case COLOR_DEPTH_888: - bpp = 8; - break; - case COLOR_DEPTH_101010: - bpp = 10; - break; - case COLOR_DEPTH_121212: - bpp = 12; - break; - case COLOR_DEPTH_141414: - bpp = 14; - break; - case COLOR_DEPTH_161616: - bpp = 16; - break; - default: - ASSERT(bpp != 0); - break; - } - - bpp = bpp * 3; - - /* TODO need to know link rate */ - - pbn = drm_dp_calc_pbn_mode(clock, bpp); - - slots = drm_dp_find_vcpi_slots(mst_mgr, pbn); - ret = drm_dp_mst_allocate_vcpi(mst_mgr, mst_port, pbn, slots); + ret = drm_dp_mst_allocate_vcpi(mst_mgr, mst_port, + dm_conn_state->pbn, + dm_conn_state->vcpi_slots); if (!ret) return false; |