drm/amdgpu: fix stack alignment ABI mismatch for GCC 7.1+
[linux-2.6-block.git] / drivers / gpu / drm / amd / display / dc / dcn21 / Makefile
1 #
2 # Makefile for DCN21.
3
4 DCN21 = dcn21_hubp.o dcn21_hubbub.o dcn21_resource.o
5
6 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := -mhard-float -msse
7
8 ifdef CONFIG_CC_IS_GCC
9 ifeq ($(call cc-ifversion, -lt, 0701, y), y)
10 IS_OLD_GCC = 1
11 endif
12 endif
13
14 ifdef IS_OLD_GCC
15 # Stack alignment mismatch, proceed with caution.
16 # GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
17 # (8B stack alignment).
18 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o += -mpreferred-stack-boundary=4
19 endif
20
21 ifdef CONFIG_CC_IS_CLANG
22 CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o += -msse2
23 endif
24
25 AMD_DAL_DCN21 = $(addprefix $(AMDDALPATH)/dc/dcn21/,$(DCN21))
26
27 AMD_DISPLAY_FILES += $(AMD_DAL_DCN21)