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authorChris Zankel <chris@zankel.net>2013-07-08 10:10:26 +0200
committerChris Zankel <chris@zankel.net>2013-07-08 10:10:26 +0200
commit033d777f548645c3a906b73eef5d665aeee55092 (patch)
tree707dd7757ed59882fb1ecaf73313c325fa20dec8 /arch/mn10300/kernel/entry.S
parentxtensa: fix section mismatch in pcibios_fixup_bus (diff)
parenthrtimer: Remove unused variable (diff)
downloadlinux-033d777f548645c3a906b73eef5d665aeee55092.tar.xz
linux-033d777f548645c3a906b73eef5d665aeee55092.zip
Merge branch 'timers-core-for-linus' of https://git.kernel.org/cgit/linux/kernel/git/tip/tip into tst5
Diffstat (limited to 'arch/mn10300/kernel/entry.S')
-rw-r--r--arch/mn10300/kernel/entry.S19
1 files changed, 6 insertions, 13 deletions
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index 68fcab8f8f6f..222152a3f751 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -60,6 +60,7 @@ ENTRY(ret_from_kernel_thread)
mov (REG_D0,fp),d0
mov (REG_A0,fp),a0
calls (a0)
+ GET_THREAD_INFO a2 # A2 must be set on return from sys_exit()
clr d0
mov d0,(REG_D0,fp)
jmp syscall_exit
@@ -107,10 +108,10 @@ syscall_exit_work:
and EPSW_nSL,d0
beq resume_kernel # returning to supervisor mode
- btst _TIF_SYSCALL_TRACE,d2
- beq work_pending
LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call
# schedule() instead
+ btst _TIF_SYSCALL_TRACE,d2
+ beq work_pending
mov fp,d0
call syscall_trace_exit[],0 # do_syscall_trace(regs)
jmp resume_userspace
@@ -123,6 +124,7 @@ work_pending:
work_resched:
call schedule[],0
+resume_userspace:
# make sure we don't miss an interrupt setting need_resched or
# sigpending between sampling and the rti
LOCAL_IRQ_DISABLE
@@ -131,6 +133,8 @@ work_resched:
mov (TI_flags,a2),d2
btst _TIF_WORK_MASK,d2
beq restore_all
+
+ LOCAL_IRQ_ENABLE
btst _TIF_NEED_RESCHED,d2
bne work_resched
@@ -169,17 +173,6 @@ ret_from_intr:
and EPSW_nSL,d0
beq resume_kernel # returning to supervisor mode
-ENTRY(resume_userspace)
- # make sure we don't miss an interrupt setting need_resched or
- # sigpending between sampling and the rti
- LOCAL_IRQ_DISABLE
-
- # is there any work to be done on int/exception return?
- mov (TI_flags,a2),d2
- btst _TIF_WORK_MASK,d2
- bne work_pending
- jmp restore_all
-
#ifdef CONFIG_PREEMPT
ENTRY(resume_kernel)
LOCAL_IRQ_DISABLE