Move mst_state->pbn_div calculation to intel_dp_mtp_tu_compute_config()
to allow further refactoring.
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp_mst.c | 31 ++++++++++-----------
1 file changed, 14 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index ea1b05224c06..8786c8751c82 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -216,15 +216,25 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp
*intel_dp,
{
struct intel_display *display = to_intel_display(intel_dp);
struct drm_atomic_state *state = crtc_state->uapi.state;
+ struct drm_dp_mst_topology_state *mst_state = NULL;
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
const struct drm_display_mode *adjusted_mode =
&crtc_state->hw.adjusted_mode;
- fixed20_12 pbn_div;
+ bool is_mst = intel_dp->is_mst;
int bpp, slots = -EINVAL;
int dsc_slice_count = 0;
int max_dpt_bpp;
+ if (is_mst) {
+ mst_state = drm_atomic_get_mst_topology_state(state,
&intel_dp->mst_mgr);
+ if (IS_ERR(mst_state))
+ return PTR_ERR(mst_state);
+
+ mst_state->pbn_div =
drm_dp_get_vc_payload_bw(crtc_state->port_clock,
+
crtc_state->lane_count);
+ }
+
if (dsc) {
if (!intel_dp_supports_fec(intel_dp, connector, crtc_state))
return -EINVAL;
@@ -232,9 +242,6 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp
*intel_dp,
crtc_state->fec_enable = !intel_dp_is_uhbr(crtc_state);
}
- pbn_div = drm_dp_get_vc_payload_bw(crtc_state->port_clock,
- crtc_state->lane_count);
-
max_dpt_bpp = intel_dp_mst_max_dpt_bpp(crtc_state, dsc);
if (max_bpp > max_dpt_bpp) {
drm_dbg_kms(display->drm, "Limiting bpp to max DPT bpp (%d ->
%d)\n",
@@ -270,7 +277,7 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp
*intel_dp,
link_bpp_x16,
&crtc_state->dp_m_n);
- if (intel_dp->is_mst) {
+ if (is_mst) {
int remote_bw_overhead;
int remote_tu;
fixed20_12 pbn;
@@ -295,7 +302,7 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp
*intel_dp,
pbn.full =
dfixed_const(intel_dp_mst_calc_pbn(adjusted_mode->crtc_clock,
link_bpp_x16,
remote_bw_overhead));
- remote_tu = DIV_ROUND_UP(pbn.full, pbn_div.full);
+ remote_tu = DIV_ROUND_UP(pbn.full,
mst_state->pbn_div.full);
/*
* Aligning the TUs ensures that symbols consisting of
multiple
@@ -313,7 +320,7 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp
*intel_dp,
* allocated for the whole path and the TUs allocated
for the
* first branch device's link also applies here.
*/
- pbn.full = remote_tu * pbn_div.full;
+ pbn.full = remote_tu * mst_state->pbn_div.full;
drm_WARN_ON(display->drm, remote_tu <
crtc_state->dp_m_n.tu);
crtc_state->dp_m_n.tu = remote_tu;
@@ -365,16 +372,6 @@ static int mst_stream_find_vcpi_slots_for_bpp(struct
intel_dp *intel_dp,
struct drm_connector_state
*conn_state,
int step, bool dsc)
{
- struct drm_atomic_state *state = crtc_state->uapi.state;
- struct drm_dp_mst_topology_state *mst_state;
-
- mst_state = drm_atomic_get_mst_topology_state(state,
&intel_dp->mst_mgr);
- if (IS_ERR(mst_state))
- return PTR_ERR(mst_state);
-
- mst_state->pbn_div = drm_dp_get_vc_payload_bw(crtc_state->port_clock,
- crtc_state->lane_count);
-
return intel_dp_mtp_tu_compute_config(intel_dp, crtc_state, conn_state,
min_bpp, max_bpp, step, dsc);
}
--
2.39.5
