The patch titled
add __iowrite64_copy
has been removed from the -mm tree. Its filename is
add-__iowrite64_copy.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: add __iowrite64_copy
From: Brice Goglin <brice@xxxxxxxx>
Introduce __iowrite64_copy. It will be used by the Myri-10G Ethernet
driver to post requests to the NIC. This driver will be submitted soon.
__iowrite64_copy copies to I/O memory in units of 64 bits when possible (on
64 bit architectures). It reverts to __iowrite32_copy on 32 bit
architectures.
Signed-off-by: Brice Goglin <brice@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/io.h | 1 +
lib/iomap_copy.c | 28 ++++++++++++++++++++++++++++
2 files changed, 29 insertions(+)
diff -puN include/linux/io.h~add-__iowrite64_copy include/linux/io.h
--- 25/include/linux/io.h~add-__iowrite64_copy Tue May 9 10:51:20 2006
+++ 25-akpm/include/linux/io.h Tue May 9 10:51:20 2006
@@ -21,5 +21,6 @@
#include <asm/io.h>
void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
+void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
#endif /* _LINUX_IO_H */
diff -puN lib/iomap_copy.c~add-__iowrite64_copy lib/iomap_copy.c
--- 25/lib/iomap_copy.c~add-__iowrite64_copy Tue May 9 10:51:20 2006
+++ 25-akpm/lib/iomap_copy.c Tue May 9 10:51:20 2006
@@ -40,3 +40,31 @@ void __attribute__((weak)) __iowrite32_c
__raw_writel(*src++, dst++);
}
EXPORT_SYMBOL_GPL(__iowrite32_copy);
+
+/**
+ * __iowrite64_copy - copy data to MMIO space, in 64-bit or 32-bit units
+ * @to: destination, in MMIO space (must be 64-bit aligned)
+ * @from: source (must be 64-bit aligned)
+ * @count: number of 64-bit quantities to copy
+ *
+ * Copy data from kernel space to MMIO space, in units of 32 or 64 bits at a
+ * time. Order of access is not guaranteed, nor is a memory barrier
+ * performed afterwards.
+ */
+void __attribute__((weak)) __iowrite64_copy(void __iomem *to,
+ const void *from,
+ size_t count)
+{
+#ifdef CONFIG_64BIT
+ u64 __iomem *dst = to;
+ const u64 *src = from;
+ const u64 *end = src + count;
+
+ while (src < end)
+ __raw_writeq(*src++, dst++);
+#else
+ __iowrite32_copy(to, from, count * 2);
+#endif
+}
+
+EXPORT_SYMBOL_GPL(__iowrite64_copy);
_
Patches currently in -mm which might be from brice@xxxxxxxx are
origin.patch
-
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