Hi Geert,
This patch is still in my patchwork todo list, and I wonder who will pick this up,
especially the change to arch/powerpc/include/asm/io.h.
Wouldn't it be easier to just fix this in fsl-viu.c only by doing this:
#ifndef CONFIG_PPC
#ifndef out_be32
#define out_be32(v, a) iowrite32be(a, (void __iomem *)v)
#endif
#ifndef in_be32
#define in_be32(a) ioread32be((void __iomem *)a)
#endif
#endif
Basically just your patch, but without removing #ifndef CONFIG_PPC.
That way there is no need to touch arch/powerpc/include/asm/io.h.
Regards,
Hans
On 6/15/18 10:10 AM, Hans Verkuil wrote:
> On 08/06/18 11:48, Geert Uytterhoeven wrote:
>> When compile-testing on m68k or microblaze:
>>
>> drivers/media/platform/fsl-viu.c:41:1: warning: "out_be32" redefined
>> drivers/media/platform/fsl-viu.c:42:1: warning: "in_be32" redefined
>>
>> Fix this by replacing the check for PowerPC by checks for the presence
>> of {out,in}_be32().
>>
>> As PowerPC implements the be32 accessors using inline functions instead
>> of macros, identity definions are added for all accessors to make the
>> above checks work.
>>
>> Fixes: 29d750686331a1a9 ("media: fsl-viu: allow building it with COMPILE_TEST")
>> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
>
> Reviewed-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>
> Should this go through the media tree or powerpc tree? Either way works for me.
>
> Regards,
>
> Hans
>
>> ---
>> Compile-tested on m68k, microblaze, and powerpc.
>> Assembler output before/after compared for powerpc.
>> ---
>> arch/powerpc/include/asm/io.h | 14 ++++++++++++++
>> drivers/media/platform/fsl-viu.c | 4 +++-
>> 2 files changed, 17 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
>> index e0331e7545685c5f..3741183ae09349f1 100644
>> --- a/arch/powerpc/include/asm/io.h
>> +++ b/arch/powerpc/include/asm/io.h
>> @@ -222,6 +222,20 @@ static inline void out_be64(volatile u64 __iomem *addr, u64 val)
>> #endif
>> #endif /* __powerpc64__ */
>>
>> +#define in_be16 in_be16
>> +#define in_be32 in_be32
>> +#define in_be64 in_be64
>> +#define in_le16 in_le16
>> +#define in_le32 in_le32
>> +#define in_le64 in_le64
>> +
>> +#define out_be16 out_be16
>> +#define out_be32 out_be32
>> +#define out_be64 out_be64
>> +#define out_le16 out_le16
>> +#define out_le32 out_le32
>> +#define out_le64 out_le64
>> +
>> /*
>> * Low level IO stream instructions are defined out of line for now
>> */
>> diff --git a/drivers/media/platform/fsl-viu.c b/drivers/media/platform/fsl-viu.c
>> index e41510ce69a40815..5d5e030c9c980647 100644
>> --- a/drivers/media/platform/fsl-viu.c
>> +++ b/drivers/media/platform/fsl-viu.c
>> @@ -37,8 +37,10 @@
>> #define VIU_VERSION "0.5.1"
>>
>> /* Allow building this driver with COMPILE_TEST */
>> -#ifndef CONFIG_PPC
>> +#ifndef out_be32
>> #define out_be32(v, a) iowrite32be(a, (void __iomem *)v)
>> +#endif
>> +#ifndef in_be32
>> #define in_be32(a) ioread32be((void __iomem *)a)
>> #endif
>>
>>
>
>
