From: Aurabindo Pillai Date: Thu, 6 Apr 2023 19:01:32 +0000 (-0400) Subject: drm/amd/display: Add FAMS related definitions and documenation for enum fields X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=053065a43ca6466575d9d3c9110e305fdcf303d3;p=linux.git drm/amd/display: Add FAMS related definitions and documenation for enum fields [Why&How] Add Enum and documenation related to FAMS (Firmware Assisted Memclk Switching) and CAB (Cache As Buffer) Reviewed-by: Qingqing Zhuo Reviewed-by: Leo Li Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- 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 54b7786f56819..b32a5c977d171 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -376,6 +376,7 @@ enum dmub_fw_boot_status_bit { DMUB_FW_BOOT_STATUS_BIT_OPTIMIZED_INIT_DONE = (1 << 2), /**< 1 if init done */ DMUB_FW_BOOT_STATUS_BIT_RESTORE_REQUIRED = (1 << 3), /**< 1 if driver should call restore */ DMUB_FW_BOOT_STATUS_BIT_DEFERRED_LOADED = (1 << 4), /**< 1 if VBIOS data is deferred programmed */ + DMUB_FW_BOOT_STATUS_BIT_FAMS_ENABLED = (1 << 5), /**< 1 if FAMS is enabled*/ DMUB_FW_BOOT_STATUS_BIT_DETECTION_REQUIRED = (1 << 6), /**< 1 if detection need to be triggered by driver*/ DMUB_FW_BOOT_STATUS_BIT_HW_POWER_INIT_DONE = (1 << 7), /**< 1 if hw power init is completed */ }; @@ -989,16 +990,25 @@ struct dmub_rb_cmd_mall { }; /** - * enum dmub_cmd_cab_type - TODO: + * enum dmub_cmd_cab_type - CAB command data. */ enum dmub_cmd_cab_type { + /** + * No idle optimizations (i.e. no CAB) + */ DMUB_CMD__CAB_NO_IDLE_OPTIMIZATION = 0, + /** + * No DCN requests for memory + */ DMUB_CMD__CAB_NO_DCN_REQ = 1, + /** + * Fit surfaces in CAB (i.e. CAB enable) + */ DMUB_CMD__CAB_DCN_SS_FIT_IN_CAB = 2, }; /** - * struct dmub_rb_cmd_cab_for_ss - TODO: + * struct dmub_rb_cmd_cab - CAB command data. */ struct dmub_rb_cmd_cab_for_ss { struct dmub_cmd_header header; @@ -1006,6 +1016,9 @@ struct dmub_rb_cmd_cab_for_ss { uint8_t debug_bits; /* debug bits */ }; +/** + * Enum for indicating which MCLK switch mode per pipe + */ enum mclk_switch_mode { NONE = 0, FPO = 1,