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drm/amd/display: Limit DCN to x86 arch 

DCN bw calcs currently rely on the following gcc options:
  -mhard-float -msse -mpreferred-stack-boundary=4

We probably shouldn't really try building this on architectures
other than x86.

CC: Alex Deucher <Alexander.Deucher@amd.com>
CC: Christian König <christian.koenig@amd.com>
CC: Michel Dänzer <michel.daenzer@amd.com>
CC: Tony Cheng <Tony.Cheng@amd.com>
CC: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Harry Wentland 2017-05-18 22:13:19 -04:00 committed by Alex Deucher
parent c1473558e6
commit bf2e2e2e0e
2 changed files with 3 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/Kconfig
View File

@ -19,7 +19,7 @@ config DRM_AMD_DC_PRE_VEGA
config DRM_AMD_DC_DCN1_0
bool "DCN 1.0 Raven family"
depends on DRM_AMD_DC
depends on DRM_AMD_DC && X86
help
Choose this option if you want to have
RV family for display engine

2
drivers/gpu/drm/amd/display/dc/calcs/Makefile
View File

@ -3,9 +3,11 @@
# It calculates Bandwidth and Watermarks values for HW programming
#
ifeq ($(ARCH),x86)
CFLAGS_dcn_calcs.o := -mhard-float -msse -mpreferred-stack-boundary=4
CFLAGS_dcn_calc_auto.o := -mhard-float -msse -mpreferred-stack-boundary=4
CFLAGS_dcn_calc_math.o := -mhard-float -msse -mpreferred-stack-boundary=4
endif
BW_CALCS = dce_calcs.o bw_fixed.o custom_float.o