From: Ovidiu Bunea <[email protected]> [why & how] In the future, DC will off-load block-level initialization to DMUB.
In preparation, update dmub_cmd.h with the command for better tracking. Reviewed-by: Nicholas Kazlauskas <[email protected]> Signed-off-by: Ovidiu Bunea <[email protected]> Signed-off-by: James Lin <[email protected]> --- .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index f0231f355fa7..c273d97ec88d 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -1169,6 +1169,16 @@ enum dmub_ips_comand_type { DMUB_CMD__IPS_QUERY_RESIDENCY_INFO = 1, }; +/** + * enum dmub_dc_bls_command_type - DC_BLS subcommands. + */ +enum dmub_dc_bls_command_type { + /** + * Placeholder for block-level initialization of the DCHVM + */ + DMUB_CMD__DC_BLS_DCHVM_INIT = 0, +}; + /** * enum dmub_cursor_offload_comand_type - Cursor offload subcommands. */ @@ -2008,6 +2018,11 @@ enum dmub_cmd_type { */ DMUB_CMD__PANEL_POLARITY = 97, + /** + * Command type used for all DC_BLS commands. + */ + DMUB_CMD__DC_BLS = 98, + /** * Command type use for VBIOS shared commands. */ @@ -2940,6 +2955,25 @@ struct dmub_rb_cmd_idle_opt_dcn_notify_idle { struct dmub_dcn_notify_idle_cntl_data cntl_data; }; +/** + * Data passed from driver to FW in a DMUB_CMD__DC_BLS_DCHVM_INIT command. + */ +struct dmub_cmd_dc_bls_dchvm_init_data { + /** + * The value to program to rIOMMU PCTRL register. x86 cannot access this SMN + * register, so the write is performed by DMCUB on the driver's behalf. + */ + uint32_t riommu_pctrl_val; /* r */ +}; + +/** + * Definition of a DMUB_CMD__DC_BLS_DCHVM_INIT command. + */ +struct dmub_rb_cmd_dc_bls_dchvm_init { + struct dmub_cmd_header header; + struct dmub_cmd_dc_bls_dchvm_init_data data; +}; + /** * enum dmub_idle_opt_dc_power_state - DC power states. */ @@ -7988,6 +8022,8 @@ union dmub_rb_cmd { struct dmub_rb_cmd_panel_polarity_enable panel_polarity_enable; struct dmub_rb_cmd_panel_polarity_get_bias panel_polarity_get_bias; struct dmub_rb_cmd_panel_polarity_reset panel_polarity_reset; + + struct dmub_rb_cmd_dc_bls_dchvm_init dc_bls_dchvm_init; }; /** -- 2.43.0
