diff options
| author | Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> | 2023-06-28 11:56:45 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-16 11:33:59 -0400 |
| commit | 0fc7d79b45f6fd5129c69cccc41385b09b5e63c1 (patch) | |
| tree | ba8f23351e121c4eecdeaab11977a13b345cc7a1 | |
| parent | d34fecc6e91e802f567764ffd0f5c930bb1c398d (diff) | |
drm/amd/display: Handle Replay related hpd irq
Handle replay related hpd irqs
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c index ef8739df91bc..e047bbeaa49a 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c @@ -182,6 +182,68 @@ static bool handle_hpd_irq_psr_sink(struct dc_link *link) return false; } +static bool handle_hpd_irq_replay_sink(struct dc_link *link) +{ + union dpcd_replay_configuration replay_configuration; + /*AMD Replay version reuse DP_PSR_ERROR_STATUS for REPLAY_ERROR status.*/ + union psr_error_status replay_error_status; + + if (!link->replay_settings.replay_feature_enabled) + return false; + + dm_helpers_dp_read_dpcd( + link->ctx, + link, + DP_SINK_PR_REPLAY_STATUS, + &replay_configuration.raw, + sizeof(replay_configuration.raw)); + + dm_helpers_dp_read_dpcd( + link->ctx, + link, + DP_PSR_ERROR_STATUS, + &replay_error_status.raw, + sizeof(replay_error_status.raw)); + + link->replay_settings.config.replay_error_status.bits.LINK_CRC_ERROR = + replay_error_status.bits.LINK_CRC_ERROR; + link->replay_settings.config.replay_error_status.bits.DESYNC_ERROR = + replay_configuration.bits.DESYNC_ERROR_STATUS; + link->replay_settings.config.replay_error_status.bits.STATE_TRANSITION_ERROR = + replay_configuration.bits.STATE_TRANSITION_ERROR_STATUS; + + if (link->replay_settings.config.replay_error_status.bits.LINK_CRC_ERROR || + link->replay_settings.config.replay_error_status.bits.DESYNC_ERROR || + link->replay_settings.config.replay_error_status.bits.STATE_TRANSITION_ERROR) { + bool allow_active; + + /* Acknowledge and clear configuration bits */ + dm_helpers_dp_write_dpcd( + link->ctx, + link, + DP_SINK_PR_REPLAY_STATUS, + &replay_configuration.raw, + sizeof(replay_configuration.raw)); + + /* Acknowledge and clear error bits */ + dm_helpers_dp_write_dpcd( + link->ctx, + link, + DP_PSR_ERROR_STATUS,/*DpcdAddress_REPLAY_Error_Status*/ + &replay_error_status.raw, + sizeof(replay_error_status.raw)); + + /* Replay error, disable and re-enable Replay */ + if (link->replay_settings.replay_allow_active) { + allow_active = false; + edp_set_replay_allow_active(link, &allow_active, true, false, NULL); + allow_active = true; + edp_set_replay_allow_active(link, &allow_active, true, false, NULL); + } + } + return true; +} + void dp_handle_link_loss(struct dc_link *link) { struct pipe_ctx *pipes[MAX_PIPES]; @@ -360,6 +422,10 @@ bool dp_handle_hpd_rx_irq(struct dc_link *link, /* PSR-related error was detected and handled */ return true; + if (handle_hpd_irq_replay_sink(link)) + /* Replay-related error was detected and handled */ + return true; + /* If PSR-related error handled, Main link may be off, * so do not handle as a normal sink status change interrupt. */ |