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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
commit6c02b7b1610f873888af20f291c07730889ff0f9 (patch)
tree1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/m68k/include/asm/segment.h
parent7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff)
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits) Linux 3.3-rc1 x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... KEYS: Permit key_serial() to be called with a const key pointer keys: fix user_defined key sparse messages ima: fix cred sparse warning uml: fix compile for x86-64 MPILIB: Add a missing ENOMEM check tpm: fix (ACPI S3) suspend regression nvme: fix merge error due to change of 'make_request_fn' fn type xen: using EXPORT_SYMBOL requires including export.h gpio: tps65910: Use correct offset for gpio initialization acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 tg3: Fix single-vector MSI-X code openvswitch: Fix multipart datapath dumps. ipv6: fix per device IP snmp counters ...
Diffstat (limited to 'arch/m68k/include/asm/segment.h')
-rw-r--r--arch/m68k/include/asm/segment.h30
1 files changed, 16 insertions, 14 deletions
diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
index ee959219fdfe..0fa80e97ed2d 100644
--- a/arch/m68k/include/asm/segment.h
+++ b/arch/m68k/include/asm/segment.h
@@ -22,23 +22,26 @@ typedef struct {
} mm_segment_t;
#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
-#define USER_DS MAKE_MM_SEG(__USER_DS)
-#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
+#ifdef CONFIG_CPU_HAS_ADDRESS_SPACES
/*
* Get/set the SFC/DFC registers for MOVES instructions
*/
+#define USER_DS MAKE_MM_SEG(__USER_DS)
+#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
static inline mm_segment_t get_fs(void)
{
-#ifdef CONFIG_MMU
mm_segment_t _v;
__asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
-
return _v;
-#else
- return USER_DS;
-#endif
+}
+
+static inline void set_fs(mm_segment_t val)
+{
+ __asm__ __volatile__ ("movec %0,%/sfc\n\t"
+ "movec %0,%/dfc\n\t"
+ : /* no outputs */ : "r" (val.seg) : "memory");
}
static inline mm_segment_t get_ds(void)
@@ -47,14 +50,13 @@ static inline mm_segment_t get_ds(void)
return KERNEL_DS;
}
-static inline void set_fs(mm_segment_t val)
-{
-#ifdef CONFIG_MMU
- __asm__ __volatile__ ("movec %0,%/sfc\n\t"
- "movec %0,%/dfc\n\t"
- : /* no outputs */ : "r" (val.seg) : "memory");
+#else
+#define USER_DS MAKE_MM_SEG(TASK_SIZE)
+#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF)
+#define get_ds() (KERNEL_DS)
+#define get_fs() (current_thread_info()->addr_limit)
+#define set_fs(x) (current_thread_info()->addr_limit = (x))
#endif
-}
#define segment_eq(a,b) ((a).seg == (b).seg)