From: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
[Why&How]
Add Enum and documenation related to FAMS (Firmware Assisted Memclk
Switching) and CAB (Cache As Buffer)
Reviewed-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Reviewed-by: Leo Li <sunpeng.li@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
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 54b7786f5681..b32a5c977d17 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,
--
2.34.1
