diff options
author | Mikita Lipski <mikita.lipski@amd.com> | 2019-11-06 14:23:55 -0500 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-13 15:29:42 -0500 |
commit | 3261e013c0cad780a9a70176569e5ba9aba6e9b0 (patch) | |
tree | 7f3938e58a6598abac30ab0c2595cbc840a5fb76 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | |
parent | 622b2a0ab647d2755f2c1f1000d3403e86a69763 (diff) |
drm/amd/display: Add MST atomic routines
- Adding encoder atomic check to find vcpi slots for a connector
- Using DRM helper functions to calculate PBN
- Adding connector atomic check to release vcpi slots if connector
loses CRTC
- Calculate PBN and VCPI slots only once during atomic
check and store them on crtc_state to eliminate
redundant calculation
- Call drm_dp_mst_atomic_check to verify validity of MST topology
during state atomic check
v2: squashed previous 3 separate patches, removed DSC PBN calculation,
and added PBN and VCPI slots properties to amdgpu connector
v3:
- moved vcpi_slots and pbn properties to dm_crtc_state and dc_stream_state
- updates stream's vcpi_slots and pbn on commit
- separated patch from the DSC MST series
v4:
- set vcpi_slots and pbn properties to dm_connector_state
- copy porperties from connector state on to crtc state
v5:
- keep the pbn and vcpi values only on connnector state
- added a void pointer to the stream state instead on two ints,
because dc_stream_state is OS agnostic. Pointer points to the
current dm_connector_state.
v6:
- Remove new param from stream
v7:
- Fix error with using max capable bpc
v8:
- squash in fix from Gustavo A. R. Silva
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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; |