diff options
author | Fangzhi Zuo <Jerry.Zuo@amd.com> | 2021-08-03 20:48:54 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2021-09-01 23:55:10 +0300 |
commit | 3bc8d9214679cc4dbd1dee634bd98a5996adbcfb (patch) | |
tree | a5e25ad3ee52e9f2cacf30ffcee62c2e44c7c61d /drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h | |
parent | 83228ebb82e4fe2e5513f35d9b0b0eded3c44cbc (diff) | |
download | linux-3bc8d9214679cc4dbd1dee634bd98a5996adbcfb.tar.xz |
drm/amd/display: Add DP 2.0 HPO Link Encoder
HW Blocks:
+--------+ +-----+ +------+
| OPTC | | HDA | | HUBP |
+--------+ +-----+ +------+
| | |
| | |
HPO ====|==========|========|====
| | v |
| | +-----+ |
| | | APG | |
| | +-----+ |
| | | |
| v v v
| +---------------------+
| | HPO Stream Encoder |
| +---------------------+
| |
| v
| +--------------------+
| | HPO Link Encoder |
v +--------------------+
[squash in warning fixes - Alex]
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h index 9eaf345aa2a1..fa3a725e11dc 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h @@ -210,4 +210,91 @@ struct link_enc_assignment { enum engine_id eng_id; }; +#if defined(CONFIG_DRM_AMD_DC_DCN) +enum dp2_link_mode { + DP2_LINK_TRAINING_TPS1, + DP2_LINK_TRAINING_TPS2, + DP2_LINK_ACTIVE, + DP2_TEST_PATTERN +}; + +enum dp2_phy_tp_select { + DP_DPHY_TP_SELECT_TPS1, + DP_DPHY_TP_SELECT_TPS2, + DP_DPHY_TP_SELECT_PRBS, + DP_DPHY_TP_SELECT_CUSTOM, + DP_DPHY_TP_SELECT_SQUARE +}; + +enum dp2_phy_tp_prbs { + DP_DPHY_TP_PRBS7, + DP_DPHY_TP_PRBS9, + DP_DPHY_TP_PRBS11, + DP_DPHY_TP_PRBS15, + DP_DPHY_TP_PRBS23, + DP_DPHY_TP_PRBS31 +}; + +struct hpo_dp_link_enc_state { + uint32_t link_enc_enabled; + uint32_t link_mode; + uint32_t lane_count; + uint32_t slot_count[4]; + uint32_t stream_src[4]; + uint32_t vc_rate_x[4]; + uint32_t vc_rate_y[4]; +}; + +struct hpo_dp_link_encoder { + const struct hpo_dp_link_encoder_funcs *funcs; + struct dc_context *ctx; + int inst; + enum engine_id preferred_engine; + enum transmitter transmitter; + enum hpd_source_id hpd_source; +}; + +struct hpo_dp_link_encoder_funcs { + + void (*enable_link_phy)(struct hpo_dp_link_encoder *enc, + const struct dc_link_settings *link_settings, + enum transmitter transmitter); + + void (*disable_link_phy)(struct hpo_dp_link_encoder *link_enc, + enum signal_type signal); + + void (*link_enable)( + struct hpo_dp_link_encoder *enc, + enum dc_lane_count num_lanes); + + void (*link_disable)( + struct hpo_dp_link_encoder *enc); + + void (*set_link_test_pattern)( + struct hpo_dp_link_encoder *enc, + struct encoder_set_dp_phy_pattern_param *tp_params); + + void (*update_stream_allocation_table)( + struct hpo_dp_link_encoder *enc, + const struct link_mst_stream_allocation_table *table); + + void (*set_throttled_vcp_size)( + struct hpo_dp_link_encoder *enc, + uint32_t stream_encoder_inst, + struct fixed31_32 avg_time_slots_per_mtp); + + bool (*is_in_alt_mode) ( + struct hpo_dp_link_encoder *enc); + + void (*read_state)( + struct hpo_dp_link_encoder *enc, + struct hpo_dp_link_enc_state *state); + + void (*set_ffe)( + struct hpo_dp_link_encoder *enc, + const struct dc_link_settings *link_settings, + uint8_t ffe_preset); +}; +#endif + #endif /* LINK_ENCODER_H_ */ |