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      1 # SPDX-License-Identifier: MIT
      2 #
      3 # Makefile for DCN21.
      4 
      5 DCN21 = dcn21_init.o dcn21_hubp.o dcn21_hubbub.o dcn21_resource.o \
      6 	 dcn21_hwseq.o dcn21_link_encoder.o
      7 
      8 ifdef CONFIG_X86
      9 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := -mhard-float -msse
     10 endif
     11 
     12 ifdef CONFIG_PPC64
     13 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := -mhard-float -maltivec
     14 endif
     15 
     16 ifdef CONFIG_CC_IS_GCC
     17 ifeq ($(call cc-ifversion, -lt, 0701, y), y)
     18 IS_OLD_GCC = 1
     19 endif
     20 endif
     21 
     22 ifdef CONFIG_X86
     23 ifdef IS_OLD_GCC
     24 # Stack alignment mismatch, proceed with caution.
     25 # GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
     26 # (8B stack alignment).
     27 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o += -mpreferred-stack-boundary=4
     28 else
     29 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o += -msse2
     30 endif
     31 endif
     32 
     33 AMD_DAL_DCN21 = $(addprefix $(AMDDALPATH)/dc/dcn21/,$(DCN21))
     34 
     35 AMD_DISPLAY_FILES += $(AMD_DAL_DCN21)
     36