Re: [PATCH v2 06/12] common.h: fix IOMEM() for MIPS64

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Am 21.05.2018 um 17:04 schrieb Sam Ravnborg:
> On Mon, May 21, 2018 at 02:54:32PM +0300, Peter Mamonov wrote:
>> Signed-off-by: Peter Mamonov <pmamonov@xxxxxxxxx>
>> ---
>>  include/common.h | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/include/common.h b/include/common.h
>> index 60e5005b8..4b3bcae40 100644
>> --- a/include/common.h
>> +++ b/include/common.h
>> @@ -142,7 +142,11 @@ void barebox_set_hostname_no_overwrite(const char *);
>>  #if defined(CONFIG_MIPS)
>>  #include <asm/addrspace.h>
>>  
>> +#ifdef CONFIG_64BIT
>> +#define IOMEM(addr)	((void __force __iomem *)PHYS_TO_XKSEG_UNCACHED(addr))
>> +#else
>>  #define IOMEM(addr)	((void __force __iomem *)CKSEG1ADDR(addr))
>> +#endif
>>  #else
>>  #define IOMEM(addr)	((void __force __iomem *)(addr))
>>  #endif
> 
> Another way to handle this would be to move the definition of IOMEM to asm/common.h
> and then in this file define IOMEM only if not already defined.
> 
> Then we could avoid this MIPS specific stuff in the middle of a common file.

I would prefer
arch/mips/include/asm/io.h

for example in kernel we have:
arch/arm/include/asm/io.h:165:#define IOMEM(x)
arch/hexagon/include/asm/io.h:38:#define IOMEM(x)

-- 
Regards,
Oleksij

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