On 2021-06-23 6:30 a.m., Michal Suchanek wrote:
> Also copy over the part that makes old gcc handling cross-platform.
>
> Fixes: df7a1658f257 ("drm/amdgpu/dc: fix DCN3.1 Makefile for PPC64")
> Fixes: 926d6972efb6 ("drm/amd/display: Add DCN3.1 blocks to the DC Makefile")
> Signed-off-by: Michal Suchanek <msuchanek@xxxxxxx>
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Harry
> ---
> The fact that the old gcc handling triggers on gcc 10 and 11 is another
> story I don't want to delve into.
> ---
> drivers/gpu/drm/amd/display/dc/dcn31/Makefile | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/Makefile b/drivers/gpu/drm/amd/display/dc/dcn31/Makefile
> index 5dcdc5a858fe..4bab97acb155 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn31/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dcn31/Makefile
> @@ -28,6 +28,7 @@ endif
> CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o += -mhard-float
> endif
>
> +ifdef CONFIG_X86
> ifdef IS_OLD_GCC
> # Stack alignment mismatch, proceed with caution.
> # GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
> @@ -36,6 +37,7 @@ CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o += -mpreferred-stack-boundary=4
> else
> CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o += -msse2
> endif
> +endif
>
> AMD_DAL_DCN31 = $(addprefix $(AMDDALPATH)/dc/dcn31/,$(DCN31))
>
>
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