Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/pcmcia/mem_op.h b/include/pcmcia/mem_op.h
new file mode 100644
index 0000000..8d19b94
--- /dev/null
+++ b/include/pcmcia/mem_op.h
@@ -0,0 +1,116 @@
+/*
+ * mem_op.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+ *
+ * (C) 1999 David A. Hinds
+ */
+
+#ifndef _LINUX_MEM_OP_H
+#define _LINUX_MEM_OP_H
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+/*
+ If UNSAFE_MEMCPY is defined, we use the (optimized) system routines
+ to copy between a card and kernel memory. These routines do 32-bit
+ operations which may not work with all PCMCIA controllers. The
+ safe versions defined here will do only 8-bit and 16-bit accesses.
+*/
+
+#ifdef UNSAFE_MEMCPY
+
+#define copy_from_pc memcpy_fromio
+#define copy_to_pc memcpy_toio
+
+static inline void copy_pc_to_user(void *to, const void *from, size_t n)
+{
+ size_t odd = (n & 3);
+ n -= odd;
+ while (n) {
+ put_user(__raw_readl(from), (int *)to);
+ (char *)from += 4; (char *)to += 4; n -= 4;
+ }
+ while (odd--)
+ put_user(readb((char *)from++), (char *)to++);
+}
+
+static inline void copy_user_to_pc(void *to, const void *from, size_t n)
+{
+ int l;
+ char c;
+ size_t odd = (n & 3);
+ n -= odd;
+ while (n) {
+ get_user(l, (int *)from);
+ __raw_writel(l, to);
+ (char *)to += 4; (char *)from += 4; n -= 4;
+ }
+ while (odd--) {
+ get_user(c, (char *)from++);
+ writeb(c, (char *)to++);
+ }
+}
+
+#else /* UNSAFE_MEMCPY */
+
+static inline void copy_from_pc(void *to, void __iomem *from, size_t n)
+{
+ __u16 *t = to;
+ __u16 __iomem *f = from;
+ size_t odd = (n & 1);
+ for (n >>= 1; n; n--)
+ *t++ = __raw_readw(f++);
+ if (odd)
+ *(__u8 *)t = readb(f);
+}
+
+static inline void copy_to_pc(void __iomem *to, const void *from, size_t n)
+{
+ __u16 __iomem *t = to;
+ const __u16 *f = from;
+ size_t odd = (n & 1);
+ for (n >>= 1; n ; n--)
+ __raw_writew(*f++, t++);
+ if (odd)
+ writeb(*(__u8 *)f, t);
+}
+
+static inline void copy_pc_to_user(void __user *to, void __iomem *from, size_t n)
+{
+ __u16 __user *t = to;
+ __u16 __iomem *f = from;
+ size_t odd = (n & 1);
+ for (n >>= 1; n ; n--)
+ put_user(__raw_readw(f++), t++);
+ if (odd)
+ put_user(readb(f), (char __user *)t);
+}
+
+static inline void copy_user_to_pc(void __iomem *to, void __user *from, size_t n)
+{
+ __u16 __user *f = from;
+ __u16 __iomem *t = to;
+ short s;
+ char c;
+ size_t odd = (n & 1);
+ for (n >>= 1; n; n--) {
+ get_user(s, f++);
+ __raw_writew(s, t++);
+ }
+ if (odd) {
+ get_user(c, (char __user *)f);
+ writeb(c, t);
+ }
+}
+
+#endif /* UNSAFE_MEMCPY */
+
+#endif /* _LINUX_MEM_OP_H */
