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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc/Makefile')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dsc/Makefile35
1 files changed, 26 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/Makefile b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
index e019cd9447e8..3f66868df171 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
@@ -1,18 +1,35 @@
+# SPDX-License-Identifier: MIT
#
# Makefile for the 'dsc' sub-component of DAL.
-ifneq ($(call cc-option, -mpreferred-stack-boundary=4),)
- cc_stack_align := -mpreferred-stack-boundary=4
-else ifneq ($(call cc-option, -mstack-alignment=16),)
- cc_stack_align := -mstack-alignment=16
+ifdef CONFIG_X86
+dsc_ccflags := -mhard-float -msse
endif
-dsc_ccflags := -mhard-float -msse $(cc_stack_align)
+ifdef CONFIG_PPC64
+dsc_ccflags := -mhard-float -maltivec
+endif
+
+ifdef CONFIG_CC_IS_GCC
+ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+IS_OLD_GCC = 1
+endif
+endif
+
+ifdef CONFIG_X86
+ifdef IS_OLD_GCC
+# Stack alignment mismatch, proceed with caution.
+# GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
+# (8B stack alignment).
+dsc_ccflags += -mpreferred-stack-boundary=4
+else
+dsc_ccflags += -msse2
+endif
+endif
-CFLAGS_rc_calc.o := $(dsc_ccflags)
-CFLAGS_rc_calc_dpi.o := $(dsc_ccflags)
-CFLAGS_codec_main_amd.o := $(dsc_ccflags)
-CFLAGS_dc_dsc.o := $(dsc_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dsc/rc_calc.o := $(dsc_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dsc/rc_calc_dpi.o := $(dsc_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dsc/dc_dsc.o := $(dsc_ccflags)
DSC = dc_dsc.o rc_calc.o rc_calc_dpi.o
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