On 2017å¹´06æ??01æ?¥ 16:50, Christian König wrote: > Am 01.06.2017 um 06:15 schrieb zhoucm1: >> >> >> On 2017å¹´05æ??31æ?¥ 23:52, Harry Wentland wrote: >>> 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. >> Does it mean our card including DCN cannot run on other platform like >> ARM? > > Yeah, which is a bit problematic cause we need to support both ARM and > PowerPC with the driver as well. I often heard external people want to run our card on embed platform, ARM is most. Regards, David Zhou > > Regards, > Christian. > >> >> Regards, >> David Zhou >>> >>> Change-Id: I63d214b2f6fe9b3fc0d59bd00563e0543f0baa8c >>> CC: Alex Deucher <Alexander.Deucher at amd.com> >>> CC: Christian König <christian.koenig at amd.com> >>> CC: Michel Dänzer <michel.daenzer at amd.com> >>> CC: Tony Cheng <Tony.Cheng at amd.com> >>> CC: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com> >>> Signed-off-by: Harry Wentland <harry.wentland at amd.com> >>> Reviewed-by: Tony Cheng <Tony.Cheng at amd.com> >>> Acked-by: Harry Wentland <Harry.Wentland at amd.com> >>> --- >>> drivers/gpu/drm/amd/display/Kconfig | 2 +- >>> drivers/gpu/drm/amd/display/dc/calcs/Makefile | 2 ++ >>> 2 files changed, 3 insertions(+), 1 deletion(-) >>> >>> diff --git a/drivers/gpu/drm/amd/display/Kconfig >>> b/drivers/gpu/drm/amd/display/Kconfig >>> index 2b8d77cebe03..62ea9f600374 100644 >>> --- a/drivers/gpu/drm/amd/display/Kconfig >>> +++ b/drivers/gpu/drm/amd/display/Kconfig >>> @@ -11,7 +11,7 @@ config DRM_AMD_DC >>> 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 >>> diff --git a/drivers/gpu/drm/amd/display/dc/calcs/Makefile >>> b/drivers/gpu/drm/amd/display/dc/calcs/Makefile >>> index a095472bf4b5..2e4ce0918c02 100644 >>> --- 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 >> >
