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MIPS: Add __ioread64_copy

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We currently have __ioread32_copy, __iowrite32_copy & __iowrite64_copy
helpers in lib/iomap_copy.c. This patch adds __ioread64_copy to round
out the set, allowing copies from I/O memory using 32 or 64 bit reads.

[ralf@linux-mips.org: Changed to move all the code of this patch to be
applied to arch/mips temporarily.]

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17025/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton
2017-08-12 21:36:15 -07:00
committed by Ralf Baechle
parent 9762d2e6d3
commit d8c825e2a0
3 changed files with 45 additions and 1 deletions
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2
arch/mips/include/asm/io.h
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@@ -632,4 +632,6 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
*/
#define xlate_dev_kmem_ptr(p) p
void __ioread64_copy(void *to, const void __iomem *from, size_t count);
#endif /* _ASM_IO_H */