From: Harry Wentland <harry.wentland@amd.com>
Date: Thu, 18 May 2017 22:13:19 -0400
Subject: drm/amd/display: Limit DCN to x86 arch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: bf2e2e2e0ea9ace6ed11423497664656943ec55f
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/Kconfig | 2 +-
drivers/gpu/drm/amd/display/dc/calcs/Makefile | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -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
--- a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
@@ -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