TRANS_DP2_CTL register is programmed to enable panel replay from source
and sink is enabled through panel replay dpcd configuration address.
Note: Currently enabled full-screen live active frame update mode
of panel replay. Panel replay also can be enabled in selective
update mode which will be enabled in a incremental approach.
Cc: Jouni Högander <jouni.hogander@xxxxxxxxx>
Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_psr.c | 30 ++++++++++++++++++++----
1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 50394143c798..b6406c334316 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -395,8 +395,14 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp)
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
u8 dpcd_val = DP_PSR_ENABLE;
- /* Enable ALPM at sink for psr2 */
+ if (intel_dp->psr.enabled && IS_PANEL_REPLAY(intel_dp)) {
+ drm_dp_dpcd_writeb(&intel_dp->aux, PANEL_REPLAY_CONFIG,
+ DP_PANEL_REPLAY_ENABLE);
+ return;
+ }
+
if (intel_dp->psr.psr2_enabled) {
+ /* Enable ALPM at sink for psr2 */
drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG,
DP_ALPM_ENABLE |
DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE);
@@ -526,6 +532,17 @@ static u32 intel_psr2_get_tp_time(struct intel_dp *intel_dp)
return val;
}
+static void dg2_activate_panel_replay(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+ intel_de_write(dev_priv, PSR2_MAN_TRK_CTL(intel_dp->psr.transcoder),
+ ADLP_PSR2_MAN_TRK_CTL_SF_PARTIAL_FRAME_UPDATE);
+
+ intel_de_rmw(dev_priv, TRANS_DP2_CTL(intel_dp->psr.transcoder), 0,
+ TRANS_DP2_PANEL_REPLAY_ENABLE);
+}
+
static void hsw_activate_psr2(struct intel_dp *intel_dp)
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -1101,8 +1118,10 @@ static void intel_psr_activate(struct intel_dp *intel_dp)
drm_WARN_ON(&dev_priv->drm, intel_dp->psr.active);
lockdep_assert_held(&intel_dp->psr.lock);
- /* psr1 and psr2 are mutually exclusive.*/
- if (intel_dp->psr.psr2_enabled)
+ /* psr1, psr2 and panel-replay are mutually exclusive.*/
+ if (intel_dp->psr.enabled && IS_PANEL_REPLAY(intel_dp))
+ dg2_activate_panel_replay(intel_dp);
+ else if (intel_dp->psr.psr2_enabled)
hsw_activate_psr2(intel_dp);
else
hsw_activate_psr1(intel_dp);
@@ -1300,7 +1319,10 @@ static void intel_psr_exit(struct intel_dp *intel_dp)
return;
}
- if (intel_dp->psr.psr2_enabled) {
+ if (intel_dp->psr.enabled && !intel_dp_is_edp(intel_dp)) {
+ intel_de_rmw(dev_priv, TRANS_DP2_CTL(intel_dp->psr.transcoder),
+ TRANS_DP2_PANEL_REPLAY_ENABLE, 0);
+ } else if (intel_dp->psr.psr2_enabled) {
tgl_disallow_dc3co_on_psr2_exit(intel_dp);
val = intel_de_read(dev_priv,
EDP_PSR2_CTL(intel_dp->psr.transcoder));
--
2.29.0
