Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 003/243] sparc64: implement ioremap_uc | Date | Wed, 11 Dec 2019 16:02:45 +0100 |
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From: Tuowen Zhao <ztuowen@gmail.com>
commit 38e45d81d14e5f78cd67922596b1c37b4c22ec74 upstream.
On sparc64, the whole physical IO address space is accessible using physically addressed loads and stores. *_uc does nothing like the others.
Cc: <stable@vger.kernel.org> # v4.19+ Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Tuowen Zhao <ztuowen@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/sparc/include/asm/io_64.h | 1 + 1 file changed, 1 insertion(+)
--- a/arch/sparc/include/asm/io_64.h +++ b/arch/sparc/include/asm/io_64.h @@ -409,6 +409,7 @@ static inline void __iomem *ioremap(unsi } #define ioremap_nocache(X,Y) ioremap((X),(Y)) +#define ioremap_uc(X,Y) ioremap((X),(Y)) #define ioremap_wc(X,Y) ioremap((X),(Y)) #define ioremap_wt(X,Y) ioremap((X),(Y))
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