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| author | Jason Gunthorpe <jgg@nvidia.com> | 2024-04-11 18:46:16 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2024-04-22 22:11:20 +0200 |
| commit | e7bc47b16622d1016b3b77bbdb20fb9e213045f2 (patch) | |
| tree | 27d7c119e0b28c8d6999b90763643325b8988ddc /arch/s390/include/asm/io.h | |
| parent | s390: Implement __iowrite32_copy() (diff) | |
| download | linux-e7bc47b16622d1016b3b77bbdb20fb9e213045f2.tar.xz linux-e7bc47b16622d1016b3b77bbdb20fb9e213045f2.zip | |
s390: Stop using weak symbols for __iowrite64_copy()
Complete switching the __iowriteXX_copy() routines over to use #define and
arch provided inline/macro functions instead of weak symbols.
S390 has an implementation that simply calls another memcpy
function. Inline this so the callers don't have to do two jumps.
Link: https://lore.kernel.org/r/3-v3-1893cd8b9369+1925-mlx5_arm_wc_jgg@nvidia.com
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'arch/s390/include/asm/io.h')
| -rw-r--r-- | arch/s390/include/asm/io.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 00704fc8a54b..0fbc992d7a5e 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -81,6 +81,13 @@ static inline void __iowrite32_copy(void __iomem *to, const void *from, } #define __iowrite32_copy __iowrite32_copy +static inline void __iowrite64_copy(void __iomem *to, const void *from, + size_t count) +{ + zpci_memcpy_toio(to, from, count * 8); +} +#define __iowrite64_copy __iowrite64_copy + #endif /* CONFIG_PCI */ #include <asm-generic/io.h> |