[PATCH] s390: core changes.
From: Martin Schwidefsky <[email protected]>
s390 core changes:
- Make use of the ipte instruction for ptep_set_access_flags
- Fix atomic64_inc_and_test primitive as well.
- Fix return type handler for __copy_in_user.
- New default configuration.
diffstat:
arch/s390/defconfig | 9 +++------
include/asm-s390/atomic.h | 2 +-
include/asm-s390/pgtable.h | 4 ++++
include/asm-s390/uaccess.h | 4 ++--
4 files changed, 10 insertions(+), 9 deletions(-)
diff -urN linux-2.6/arch/s390/defconfig linux-2.6-s390/arch/s390/defconfig
--- linux-2.6/arch/s390/defconfig Wed Jun 2 11:29:01 2004
+++ linux-2.6-s390/arch/s390/defconfig Wed Jun 2 11:29:25 2004
@@ -28,6 +28,7 @@
CONFIG_IKCONFIG_PROC=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
@@ -112,7 +113,6 @@
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_REPORT_LUNS is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
@@ -126,6 +126,7 @@
# SCSI low-level drivers
#
# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_DEBUG is not set
@@ -310,11 +311,7 @@
# CONFIG_MII is not set
#
-# Ethernet (1000 Mbit)
-#
-
-#
-# Ethernet (10000 Mbit)
+# Gigabit Ethernet (1000/10000 Mbit)
#
#
diff -urN linux-2.6/include/asm-s390/atomic.h linux-2.6-s390/include/asm-s390/atomic.h
--- linux-2.6/include/asm-s390/atomic.h Wed Jun 2 11:29:07 2004
+++ linux-2.6-s390/include/asm-s390/atomic.h Wed Jun 2 11:29:25 2004
@@ -145,7 +145,7 @@
}
static __inline__ long long atomic64_inc_and_test(volatile atomic64_t * v)
{
- return __CSG_LOOP(v, 1, "agr") != 0;
+ return __CSG_LOOP(v, 1, "agr") == 0;
}
static __inline__ void atomic64_dec(volatile atomic64_t * v)
{
diff -urN linux-2.6/include/asm-s390/pgtable.h linux-2.6-s390/include/asm-s390/pgtable.h
--- linux-2.6/include/asm-s390/pgtable.h Wed Jun 2 11:29:08 2004
+++ linux-2.6-s390/include/asm-s390/pgtable.h Wed Jun 2 11:29:25 2004
@@ -587,6 +587,9 @@
set_pte(ptep, entry);
}
+#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
+ ptep_establish(__vma, __address, __ptep, __entry)
+
/*
* Test and clear dirty bit in storage key.
* We can't clear the changed bit atomically. This is a potential
@@ -784,6 +787,7 @@
#define pgtable_cache_init() do { } while (0)
#define __HAVE_ARCH_PTEP_ESTABLISH
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
diff -urN linux-2.6/include/asm-s390/uaccess.h linux-2.6-s390/include/asm-s390/uaccess.h
--- linux-2.6/include/asm-s390/uaccess.h Wed Jun 2 11:29:08 2004
+++ linux-2.6-s390/include/asm-s390/uaccess.h Wed Jun 2 11:29:25 2004
@@ -326,12 +326,12 @@
return n;
}
-extern long __copy_in_user_asm(const void *from, long n, void *to);
+extern unsigned long __copy_in_user_asm(const void *from, long n, void *to);
static inline unsigned long
__copy_in_user(void __user *to, const void __user *from, unsigned long n)
{
- __copy_in_user_asm(from, n, to);
+ return __copy_in_user_asm(from, n, to);
}
static inline unsigned long