diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0957-drm-amd-display-Add-functionality-to-get-XGMI-SS-inf.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0957-drm-amd-display-Add-functionality-to-get-XGMI-SS-inf.patch | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0957-drm-amd-display-Add-functionality-to-get-XGMI-SS-inf.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0957-drm-amd-display-Add-functionality-to-get-XGMI-SS-inf.patch new file mode 100644 index 00000000..3a62af16 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0957-drm-amd-display-Add-functionality-to-get-XGMI-SS-inf.patch @@ -0,0 +1,81 @@ +From 856e5734662bd1d96c0f50cea6c55e8501a2dfb9 Mon Sep 17 00:00:00 2001 +From: Leo Li <sunpeng.li@amd.com> +Date: Wed, 31 Oct 2018 17:07:41 -0400 +Subject: [PATCH 0957/2940] drm/amd/display: Add functionality to get XGMI SS + info + +[Why] +When XGMI is enabled, the DP reference clock needs to be adjusted +according to the XGMI spread spectrum percentage and mode. But first, +we need the ability to fetch this info. + +[How] +Within the BIOS parser, Read from vBIOS when XGMI SS info is requested. + +In addition, diags build uses include_legacy/atomfirmware.h for the +smu_info_v3_3 table headers. Update that as well. + +Signed-off-by: Leo Li <sunpeng.li@amd.com> +Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> +Acked-by: Tony Cheng <Tony.Cheng@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + .../gpu/drm/amd/display/dc/bios/bios_parser2.c | 15 +++++++++++++++ + .../drm/amd/display/include/bios_parser_types.h | 1 + + 2 files changed, 16 insertions(+) + +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 751bb614fc0e..c513ab6f3843 100644 +--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c ++++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +@@ -638,6 +638,7 @@ static enum bp_result get_ss_info_v4_1( + { + enum bp_result result = BP_RESULT_OK; + struct atom_display_controller_info_v4_1 *disp_cntl_tbl = NULL; ++ struct atom_smu_info_v3_3 *smu_info = NULL; + + if (!ss_info) + return BP_RESULT_BADINPUT; +@@ -650,6 +651,7 @@ static enum bp_result get_ss_info_v4_1( + if (!disp_cntl_tbl) + return BP_RESULT_BADBIOSTABLE; + ++ + ss_info->type.STEP_AND_DELAY_INFO = false; + ss_info->spread_percentage_divider = 1000; + /* BIOS no longer uses target clock. Always enable for now */ +@@ -688,6 +690,19 @@ static enum bp_result get_ss_info_v4_1( + */ + result = BP_RESULT_UNSUPPORTED; + break; ++ case AS_SIGNAL_TYPE_XGMI: ++ smu_info = GET_IMAGE(struct atom_smu_info_v3_3, ++ DATA_TABLES(smu_info)); ++ if (!smu_info) ++ return BP_RESULT_BADBIOSTABLE; ++ ++ ss_info->spread_spectrum_percentage = ++ smu_info->waflclk_ss_percentage; ++ ss_info->spread_spectrum_range = ++ smu_info->gpuclk_ss_rate_10hz * 10; ++ if (smu_info->waflclk_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE) ++ ss_info->type.CENTER_MODE = true; ++ break; + default: + result = BP_RESULT_UNSUPPORTED; + } +diff --git a/drivers/gpu/drm/amd/display/include/bios_parser_types.h b/drivers/gpu/drm/amd/display/include/bios_parser_types.h +index f8dbfa5b89f2..7fd78a696800 100644 +--- a/drivers/gpu/drm/amd/display/include/bios_parser_types.h ++++ b/drivers/gpu/drm/amd/display/include/bios_parser_types.h +@@ -41,6 +41,7 @@ enum as_signal_type { + AS_SIGNAL_TYPE_LVDS, + AS_SIGNAL_TYPE_DISPLAY_PORT, + AS_SIGNAL_TYPE_GPU_PLL, ++ AS_SIGNAL_TYPE_XGMI, + AS_SIGNAL_TYPE_UNKNOWN + }; + +-- +2.17.1 + |