Searched hist:"76 d21d186a65523b08ea5f70302e2c29ee8f6a8d" (Results 1 – 2 of 2) sorted by relevance
| /linux/arch/csky/mm/ |
| H A D | ioremap.c | diff 76d21d186a65523b08ea5f70302e2c29ee8f6a8d Wed Jan 30 13:13:11 CET 2019 Guo Ren <ren_guo@c-sky.com> csky: Fixup io-range page attribute for mmap("/dev/mem")
Some user space drivers need accessing IO address and IO remap need
SO(strong order) page-attribute to make IO operation correct. So we
need add SO-page-attr for all non-memory address.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reported-by: Fan Xiaodong <xiaodong.fan@boyahualu.com>
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| /linux/arch/csky/include/asm/ |
| H A D | pgtable.h | diff 76d21d186a65523b08ea5f70302e2c29ee8f6a8d Wed Jan 30 13:13:11 CET 2019 Guo Ren <ren_guo@c-sky.com> csky: Fixup io-range page attribute for mmap("/dev/mem")
Some user space drivers need accessing IO address and IO remap need
SO(strong order) page-attribute to make IO operation correct. So we
need add SO-page-attr for all non-memory address.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reported-by: Fan Xiaodong <xiaodong.fan@boyahualu.com>
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