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authorTejun Heo <tj@kernel.org>2010-01-05 09:17:33 +0900
committerTejun Heo <tj@kernel.org>2010-01-05 09:17:33 +0900
commit32032df6c2f6c9c6b2ada2ce42322231824f70c2 (patch)
treeb1ce838a37044bb38dfc128e2116ca35630e629a /arch/sh/kernel/cpu/init.c
parent22b737f4c75197372d64afc6ed1bccd58c00e549 (diff)
parentc5974b835a909ff15c3b7e6cf6789b5eb919f419 (diff)
Merge branch 'master' into percpu
Conflicts: arch/powerpc/platforms/pseries/hvCall.S include/linux/percpu.h
Diffstat (limited to 'arch/sh/kernel/cpu/init.c')
-rw-r--r--arch/sh/kernel/cpu/init.c28
1 files changed, 6 insertions, 22 deletions
diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index e932ebef4738..89b4b76c0d76 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -75,16 +75,11 @@ static void __init expmask_init(void)
/*
* Future proofing.
*
- * Disable support for slottable sleep instruction
- * and non-nop instructions in the rte delay slot.
+ * Disable support for slottable sleep instruction, non-nop
+ * instructions in the rte delay slot, and associative writes to
+ * the memory-mapped cache array.
*/
- expmask &= ~(EXPMASK_RTEDS | EXPMASK_BRDSSLP);
-
- /*
- * Enable associative writes to the memory-mapped cache array
- * until the cache flush ops have been rewritten.
- */
- expmask |= EXPMASK_MMCAW;
+ expmask &= ~(EXPMASK_RTEDS | EXPMASK_BRDSSLP | EXPMASK_MMCAW);
__raw_writel(expmask, EXPMASK);
ctrl_barrier();
@@ -311,12 +306,12 @@ asmlinkage void __init sh_cpu_init(void)
if (fpu_disabled) {
printk("FPU Disabled\n");
current_cpu_data.flags &= ~CPU_HAS_FPU;
- disable_fpu();
}
/* FPU initialization */
+ disable_fpu();
if ((current_cpu_data.flags & CPU_HAS_FPU)) {
- clear_thread_flag(TIF_USEDFPU);
+ current_thread_info()->status &= ~TS_USEDFPU;
clear_used_math();
}
@@ -338,17 +333,6 @@ asmlinkage void __init sh_cpu_init(void)
}
#endif
- /*
- * Some brain-damaged loaders decided it would be a good idea to put
- * the UBC to sleep. This causes some issues when it comes to things
- * like PTRACE_SINGLESTEP or doing hardware watchpoints in GDB. So ..
- * we wake it up and hope that all is well.
- */
-#ifdef CONFIG_SUPERH32
- if (raw_smp_processor_id() == 0)
- ubc_wakeup();
-#endif
-
speculative_execution_init();
expmask_init();
}