drm/amd/display: Drop FPU code from dcn321 resource

This commit fully move the missing FPU operations from dcn321 resource
to dcn321 fpu. It also remove those FPU flags from the Makefile.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn321/Makefile

@@ -12,31 +12,6 @@
 
 DCN321 = dcn321_resource.o dcn321_dio_link_encoder.o
 
-ifdef CONFIG_X86
-CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o := -mhard-float -msse
-endif
-
-ifdef CONFIG_PPC64
-CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o := -mhard-float -maltivec
-endif
-
-ifdef CONFIG_CC_IS_GCC
-ifeq ($(call cc-ifversion, -lt, 0701, y), y)
-IS_OLD_GCC = 1
-endif
-endif
-
-ifdef CONFIG_X86
-ifdef IS_OLD_GCC
-# Stack alignment mismatch, proceed with caution.
-# GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
-# (8B stack alignment).
-CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o += -mpreferred-stack-boundary=4
-else
-CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o += -msse2
-endif
-endif
-
 AMD_DAL_DCN321 = $(addprefix $(AMDDALPATH)/dc/dcn321/,$(DCN321))
 
 AMD_DISPLAY_FILES += $(AMD_DAL_DCN321)

drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.h

@@ -33,4 +33,6 @@ void dcn321_insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *t
 					   unsigned int *num_entries,
 					   struct _vcs_dpi_voltage_scaling_st *entry);
 
+void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_params);
+
 #endif