diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 139 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_bios_types.h | 3 |
2 files changed, 142 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index b208f06ed514..2ee0c6fc069a 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -916,6 +916,143 @@ static enum bp_result bios_parser_get_soc_bb_info( return result; } +static enum bp_result get_lttpr_caps_v4_1( + struct bios_parser *bp, + uint8_t *dce_caps) +{ + enum bp_result result = BP_RESULT_OK; + struct atom_display_controller_info_v4_1 *disp_cntl_tbl = NULL; + + if (!dce_caps) + return BP_RESULT_BADINPUT; + + if (!DATA_TABLES(dce_info)) + return BP_RESULT_BADBIOSTABLE; + + disp_cntl_tbl = GET_IMAGE(struct atom_display_controller_info_v4_1, + DATA_TABLES(dce_info)); + + if (!disp_cntl_tbl) + return BP_RESULT_BADBIOSTABLE; + + *dce_caps = !!(disp_cntl_tbl->display_caps & DCE_INFO_CAPS_LTTPR_SUPPORT_ENABLE); + + return result; +} + +static enum bp_result get_lttpr_caps_v4_2( + struct bios_parser *bp, + uint8_t *dce_caps) +{ + enum bp_result result = BP_RESULT_OK; + struct atom_display_controller_info_v4_2 *disp_cntl_tbl = NULL; + + if (!dce_caps) + return BP_RESULT_BADINPUT; + + if (!DATA_TABLES(dce_info)) + return BP_RESULT_BADBIOSTABLE; + + disp_cntl_tbl = GET_IMAGE(struct atom_display_controller_info_v4_2, + DATA_TABLES(dce_info)); + + if (!disp_cntl_tbl) + return BP_RESULT_BADBIOSTABLE; + + *dce_caps = !!(disp_cntl_tbl->display_caps & DCE_INFO_CAPS_LTTPR_SUPPORT_ENABLE); + + return result; +} + +static enum bp_result get_lttpr_caps_v4_3( + struct bios_parser *bp, + uint8_t *dce_caps) +{ + enum bp_result result = BP_RESULT_OK; + struct atom_display_controller_info_v4_3 *disp_cntl_tbl = NULL; + + if (!dce_caps) + return BP_RESULT_BADINPUT; + + if (!DATA_TABLES(dce_info)) + return BP_RESULT_BADBIOSTABLE; + + disp_cntl_tbl = GET_IMAGE(struct atom_display_controller_info_v4_3, + DATA_TABLES(dce_info)); + + if (!disp_cntl_tbl) + return BP_RESULT_BADBIOSTABLE; + + *dce_caps = !!(disp_cntl_tbl->display_caps & DCE_INFO_CAPS_LTTPR_SUPPORT_ENABLE); + + return result; +} + +static enum bp_result get_lttpr_caps_v4_4( + struct bios_parser *bp, + uint8_t *dce_caps) +{ + enum bp_result result = BP_RESULT_OK; + struct atom_display_controller_info_v4_4 *disp_cntl_tbl = NULL; + + if (!dce_caps) + return BP_RESULT_BADINPUT; + + if (!DATA_TABLES(dce_info)) + return BP_RESULT_BADBIOSTABLE; + + disp_cntl_tbl = GET_IMAGE(struct atom_display_controller_info_v4_4, + DATA_TABLES(dce_info)); + + if (!disp_cntl_tbl) + return BP_RESULT_BADBIOSTABLE; + + *dce_caps = !!(disp_cntl_tbl->display_caps & DCE_INFO_CAPS_LTTPR_SUPPORT_ENABLE); + + return result; +} + +static enum bp_result bios_parser_get_lttpr_caps( + struct dc_bios *dcb, + uint8_t *dce_caps) +{ + struct bios_parser *bp = BP_FROM_DCB(dcb); + enum bp_result result = BP_RESULT_UNSUPPORTED; + struct atom_common_table_header *header; + struct atom_data_revision tbl_revision; + + if (!DATA_TABLES(dce_info)) + return BP_RESULT_UNSUPPORTED; + + header = GET_IMAGE(struct atom_common_table_header, + DATA_TABLES(dce_info)); + get_atom_data_table_revision(header, &tbl_revision); + switch (tbl_revision.major) { + case 4: + switch (tbl_revision.minor) { + case 1: + result = get_lttpr_caps_v4_1(bp, dce_caps); + break; + case 2: + result = get_lttpr_caps_v4_2(bp, dce_caps); + break; + case 3: + result = get_lttpr_caps_v4_3(bp, dce_caps); + break; + case 4: + result = get_lttpr_caps_v4_4(bp, dce_caps); + break; + default: + break; + } + break; + default: + break; + } + + return result; +} + static enum bp_result get_embedded_panel_info_v2_1( struct bios_parser *bp, struct embedded_panel_info *info) @@ -2531,6 +2668,8 @@ static const struct dc_vbios_funcs vbios_funcs = { .get_soc_bb_info = bios_parser_get_soc_bb_info, .get_disp_connector_caps_info = bios_parser_get_disp_connector_caps_info, + + .get_lttpr_caps = bios_parser_get_lttpr_caps, }; static bool bios_parser2_construct( diff --git a/drivers/gpu/drm/amd/display/dc/dc_bios_types.h b/drivers/gpu/drm/amd/display/dc/dc_bios_types.h index 86ab8f16f621..1b957c60156b 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_bios_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_bios_types.h @@ -150,6 +150,9 @@ struct dc_vbios_funcs { struct dc_bios *dcb, struct graphics_object_id object_id, struct bp_disp_connector_caps_info *info); + enum bp_result (*get_lttpr_caps)( + struct dc_bios *dcb, + uint8_t *dce_caps); }; struct bios_registers { |