On Wed, Jul 13, 2022 at 05:20:40PM -0400, Alex Deucher wrote: > > > > The problem is not the FPU operations, but the fact that soft-float > > and hard-float compiled code is linked together. The soft-float and > > hard-float ABIs on powerpc are not compatible, so one ends up with > > an object file which is partially soft-float and partially hard-float > > compiled and thus uses different ABIs. That can only create chaos, > > so the linker complains about it. > > I get that, I just don't see why only DCN 3.1.x files have this > problem. The DCN 2.x files should as well. > Seen in drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile: # prevent build errors regarding soft-float vs hard-float FP ABI tags # this code is currently unused on ppc64, as it applies to Renoir APUs only ifdef CONFIG_PPC64 CFLAGS_$(AMDDALPATH)/dc/clk_mgr/dcn21/rn_clk_mgr.o := $(call cc-option,-mno-gnu-attribute) endif Does that explain it ? Guenter
