Re: [PATCH] ARM: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache

2016-10-31 Thread Russell King - ARM Linux
On Sun, Oct 30, 2016 at 12:31:04AM +0900, Masahiro Yamada wrote: > Hi. > > If there is no objection to this patch, > I will put it into Russell's patch tracker. I don't think I have any objection, it's following the same pattern that we have for 64-byte cache lines, and this is about the only way

[PATCH] ARM: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache

2016-10-31 Thread Masahiro Yamada
The UniPhier outer cache (arch/arm/mm/cache-uniphier.c) has 128 byte line length and its tags are also managed per 128 byte line. This is very unfortunate, but the current 64 byte alignment for kmalloc() causes sharing problems on DMA if used with this outer cache. This commit adds ARM_L1_CACHE_S

[PATCH] ARM: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache

2016-10-31 Thread Masahiro Yamada
The UniPhier outer cache (arch/arm/mm/cache-uniphier.c) has 128 byte line length and its tags are also managed per 128 byte line. This is very unfortunate, but the current 64 byte alignment for kmalloc() causes sharing problems on DMA if used with this outer cache. This commit adds ARM_L1_CACHE_S

Re: [PATCH] ARM: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache

2016-10-29 Thread Masahiro Yamada
Hi. If there is no objection to this patch, I will put it into Russell's patch tracker. 2016-10-19 21:39 GMT+09:00 Masahiro Yamada : > The UniPhier outer cache (arch/arm/mm/cache-uniphier.c) has 128 byte > line length and its tags are also managed per 128 byte line. This > is very unfortunate,

[PATCH] ARM: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache

2016-10-19 Thread Masahiro Yamada
The UniPhier outer cache (arch/arm/mm/cache-uniphier.c) has 128 byte line length and its tags are also managed per 128 byte line. This is very unfortunate, but the current 64 byte alignment for kmalloc() causes sharing problems on DMA if used with this outer cache. This commit adds ARM_L1_CACHE_S