drm/amd/display: Add GSL source select registers

GSL is a form of locking that can be used to synchronize pipes in a
pipe-split configurations when async flip is used. Add the registers
here.
Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h

@@ -84,7 +84,8 @@
 	SRI(OTG_CRC0_WINDOWA_X_CONTROL, OTG, inst),\
 	SRI(OTG_CRC0_WINDOWA_Y_CONTROL, OTG, inst),\
 	SRI(OTG_CRC0_WINDOWB_X_CONTROL, OTG, inst),\
-	SRI(OTG_CRC0_WINDOWB_Y_CONTROL, OTG, inst)
+	SRI(OTG_CRC0_WINDOWB_Y_CONTROL, OTG, inst),\
+	SR(GSL_SOURCE_SELECT)
 
 #define TG_COMMON_REG_LIST_DCN1_0(inst) \
 	TG_COMMON_REG_LIST_DCN(inst),\
@@ -156,6 +157,7 @@ struct dcn_optc_registers {
 	uint32_t OTG_CRC0_WINDOWA_Y_CONTROL;
 	uint32_t OTG_CRC0_WINDOWB_X_CONTROL;
 	uint32_t OTG_CRC0_WINDOWB_Y_CONTROL;
+	uint32_t GSL_SOURCE_SELECT;
 };
 
 #define TG_COMMON_MASK_SH_LIST_DCN(mask_sh)\
@@ -266,7 +268,10 @@ struct dcn_optc_registers {
 	SF(OTG0_OTG_CRC0_WINDOWB_X_CONTROL, OTG_CRC0_WINDOWB_X_START, mask_sh),\
 	SF(OTG0_OTG_CRC0_WINDOWB_X_CONTROL, OTG_CRC0_WINDOWB_X_END, mask_sh),\
 	SF(OTG0_OTG_CRC0_WINDOWB_Y_CONTROL, OTG_CRC0_WINDOWB_Y_START, mask_sh),\
-	SF(OTG0_OTG_CRC0_WINDOWB_Y_CONTROL, OTG_CRC0_WINDOWB_Y_END, mask_sh)
+	SF(OTG0_OTG_CRC0_WINDOWB_Y_CONTROL, OTG_CRC0_WINDOWB_Y_END, mask_sh),\
+	SF(GSL_SOURCE_SELECT, GSL0_READY_SOURCE_SEL, mask_sh),\
+	SF(GSL_SOURCE_SELECT, GSL1_READY_SOURCE_SEL, mask_sh),\
+	SF(GSL_SOURCE_SELECT, GSL2_READY_SOURCE_SEL, mask_sh)
 
 
 #define TG_COMMON_MASK_SH_LIST_DCN1_0(mask_sh)\
@@ -413,7 +418,10 @@ struct dcn_optc_registers {
 	type OTG_CRC0_WINDOWB_X_START;\
 	type OTG_CRC0_WINDOWB_X_END;\
 	type OTG_CRC0_WINDOWB_Y_START;\
-	type OTG_CRC0_WINDOWB_Y_END;
+	type OTG_CRC0_WINDOWB_Y_END;\
+	type GSL0_READY_SOURCE_SEL;\
+	type GSL1_READY_SOURCE_SEL;\
+	type GSL2_READY_SOURCE_SEL;
 
 
 #define TG_REG_FIELD_LIST(type) \