Re: [PATCH 2/2] drm/amdgpu/display: fix DCN3.2 Makefiles for non-x86

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On 2022-06-06 12:00, Alex Deucher wrote:
> On Mon, Jun 6, 2022 at 11:54 AM Harry Wentland <harry.wentland@xxxxxxx> wrote:
>>
>> On 2022-06-06 11:42, Alex Deucher wrote:
>>> Add proper handling for PPC64.
>>>
>>> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>>> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
>>> ---
>>>  drivers/gpu/drm/amd/display/dc/dcn32/Makefile  | 9 ++++++++-
>>>  drivers/gpu/drm/amd/display/dc/dcn321/Makefile | 9 ++++++++-
>>>  2 files changed, 16 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/Makefile b/drivers/gpu/drm/amd/display/dc/dcn32/Makefile
>>> index 6e0328060255..3d09db3070f4 100644
>>> --- a/drivers/gpu/drm/amd/display/dc/dcn32/Makefile
>>> +++ b/drivers/gpu/drm/amd/display/dc/dcn32/Makefile
>>> @@ -15,12 +15,19 @@ DCN32 = dcn32_resource.o dcn32_hubbub.o dcn32_hwseq.o dcn32_init.o \
>>>               dcn32_dio_stream_encoder.o dcn32_dio_link_encoder.o dcn32_hpo_dp_link_encoder.o \
>>>               dcn32_mpc.o
>>>
>>> -CFLAGS_$(AMDDALPATH)/dc/dcn32/dcn32_resource.o := -mhard-float -msse
>>> +ifdef CONFIG_X86
>>> +CFLAGS_$(AMDDALPATH)/dc/dcn32/dcn32_resource.o := -msse
>>
>> Should this have an -mhard-float as well? I see that in the other
>> Makefiles.
>>
>> The entry below only adds it for gcc, not for clang.
> 
> A bunch of the other resource Makefiles don't seem to have it.  E.g.,
> drivers/gpu/drm/amd/display/dc/dcn30/Makefile
> drivers/gpu/drm/amd/display/dc/dcn302/Makefile
> 

True, and things worked so far. In that case we probably don't
need it.

Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>

Harry

> drivers/gpu/drm/amd/display/dc/dcn201/Makefile and
> drivers/gpu/drm/amd/display/dc/dml/Makefile do include it however.
> 
> Alex
> 
>>
>> Harry
>>
>>> +endif
>>> +
>>> +ifdef CONFIG_PPC64
>>> +CFLAGS_$(AMDDALPATH)/dc/dcn32/dcn32_resource.o := -mhard-float -maltivec
>>> +endif
>>>
>>>  ifdef CONFIG_CC_IS_GCC
>>>  ifeq ($(call cc-ifversion, -lt, 0701, y), y)
>>>  IS_OLD_GCC = 1
>>>  endif
>>> +CFLAGS_$(AMDDALPATH)/dc/dcn32/dcn32_resource.o += -mhard-float
>>>  endif
>>>
>>>  ifdef IS_OLD_GCC
>>> diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/Makefile b/drivers/gpu/drm/amd/display/dc/dcn321/Makefile
>>> index 9b61d08700ca..5896ca303e39 100644
>>> --- a/drivers/gpu/drm/amd/display/dc/dcn321/Makefile
>>> +++ b/drivers/gpu/drm/amd/display/dc/dcn321/Makefile
>>> @@ -12,12 +12,19 @@
>>>
>>>  DCN321 = dcn321_resource.o dcn321_dio_link_encoder.o
>>>
>>> -CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o := -mhard-float -msse
>>> +ifdef CONFIG_X86
>>> +CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o := -msse
>>> +endif
>>> +
>>> +ifdef CONFIG_PPC64
>>> +CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o := -mhard-float -maltivec
>>> +endif
>>>
>>>  ifdef CONFIG_CC_IS_GCC
>>>  ifeq ($(call cc-ifversion, -lt, 0701, y), y)
>>>  IS_OLD_GCC = 1
>>>  endif
>>> +CFLAGS_$(AMDDALPATH)/dc/dcn321/dcn321_resource.o += -mhard-float
>>>  endif
>>>
>>>  ifdef IS_OLD_GCC
>>




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