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authorGerald Schaefer <geraldsc@de.ibm.com>2006-09-20 15:59:44 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-09-20 15:59:44 +0200
commit6c2a9e6df60478e712f3c3d98b5047778a82a3d7 (patch)
tree6768eb3991f4f1616b211a21ccf1b8e27820ae79 /include/asm-s390
parentd02765d1af743567398eb6d523dea0ba5e5e7e8e (diff)
downloadlinux-6c2a9e6df60478e712f3c3d98b5047778a82a3d7.tar.bz2
[S390] Use alternative user-copy operations for new hardware.
This introduces new user-copy operations which are optimized for copying more than 256 Bytes on new hardware. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390')
-rw-r--r--include/asm-s390/setup.h2
-rw-r--r--include/asm-s390/uaccess.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h
index 00c03e46689b..f1959732b6fd 100644
--- a/include/asm-s390/setup.h
+++ b/include/asm-s390/setup.h
@@ -44,10 +44,12 @@ extern unsigned long machine_flags;
#define MACHINE_HAS_IEEE (machine_flags & 2)
#define MACHINE_HAS_CSP (machine_flags & 8)
#define MACHINE_HAS_DIAG44 (1)
+#define MACHINE_HAS_MVCOS (0)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
#define MACHINE_HAS_DIAG44 (machine_flags & 32)
+#define MACHINE_HAS_MVCOS (machine_flags & 512)
#endif /* __s390x__ */
diff --git a/include/asm-s390/uaccess.h b/include/asm-s390/uaccess.h
index 39a2716ae188..e2047b0c9092 100644
--- a/include/asm-s390/uaccess.h
+++ b/include/asm-s390/uaccess.h
@@ -100,6 +100,7 @@ struct uaccess_ops {
extern struct uaccess_ops uaccess;
extern struct uaccess_ops uaccess_std;
+extern struct uaccess_ops uaccess_mvcos;
static inline int __put_user_fn(size_t size, void __user *ptr, void *x)
{