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. 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 >
