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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-09 00:27:51 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-09 00:27:51 -0400
commit141dc40ee343ab532717b235dd645e2d25ae3092 (patch)
tree2289e5d1ec20df5e465b9b629e291877f4d70485 /arch/mn10300/kernel/entry.S
parent1c83d94ff646001f9ee83f0330a3933b55660927 (diff)
parent317ddd256b9c24b0d78fa8018f80f1e495481a10 (diff)
Merge 3.10-rc5 into usb-next
We need the changes in this branch. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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)
60 mov (REG_D0,fp),d0 60 mov (REG_D0,fp),d0
61 mov (REG_A0,fp),a0 61 mov (REG_A0,fp),a0
62 calls (a0) 62 calls (a0)
63 GET_THREAD_INFO a2 # A2 must be set on return from sys_exit()
63 clr d0 64 clr d0
64 mov d0,(REG_D0,fp) 65 mov d0,(REG_D0,fp)
65 jmp syscall_exit 66 jmp syscall_exit
@@ -107,10 +108,10 @@ syscall_exit_work:
107 and EPSW_nSL,d0 108 and EPSW_nSL,d0
108 beq resume_kernel # returning to supervisor mode 109 beq resume_kernel # returning to supervisor mode
109 110
110 btst _TIF_SYSCALL_TRACE,d2
111 beq work_pending
112 LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call 111 LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call
113 # schedule() instead 112 # schedule() instead
113 btst _TIF_SYSCALL_TRACE,d2
114 beq work_pending
114 mov fp,d0 115 mov fp,d0
115 call syscall_trace_exit[],0 # do_syscall_trace(regs) 116 call syscall_trace_exit[],0 # do_syscall_trace(regs)
116 jmp resume_userspace 117 jmp resume_userspace
@@ -123,6 +124,7 @@ work_pending:
123work_resched: 124work_resched:
124 call schedule[],0 125 call schedule[],0
125 126
127resume_userspace:
126 # make sure we don't miss an interrupt setting need_resched or 128 # make sure we don't miss an interrupt setting need_resched or
127 # sigpending between sampling and the rti 129 # sigpending between sampling and the rti
128 LOCAL_IRQ_DISABLE 130 LOCAL_IRQ_DISABLE
@@ -131,6 +133,8 @@ work_resched:
131 mov (TI_flags,a2),d2 133 mov (TI_flags,a2),d2
132 btst _TIF_WORK_MASK,d2 134 btst _TIF_WORK_MASK,d2
133 beq restore_all 135 beq restore_all
136
137 LOCAL_IRQ_ENABLE
134 btst _TIF_NEED_RESCHED,d2 138 btst _TIF_NEED_RESCHED,d2
135 bne work_resched 139 bne work_resched
136 140
@@ -169,17 +173,6 @@ ret_from_intr:
169 and EPSW_nSL,d0 173 and EPSW_nSL,d0
170 beq resume_kernel # returning to supervisor mode 174 beq resume_kernel # returning to supervisor mode
171 175
172ENTRY(resume_userspace)
173 # make sure we don't miss an interrupt setting need_resched or
174 # sigpending between sampling and the rti
175 LOCAL_IRQ_DISABLE
176
177 # is there any work to be done on int/exception return?
178 mov (TI_flags,a2),d2
179 btst _TIF_WORK_MASK,d2
180 bne work_pending
181 jmp restore_all
182
183#ifdef CONFIG_PREEMPT 176#ifdef CONFIG_PREEMPT
184ENTRY(resume_kernel) 177ENTRY(resume_kernel)
185 LOCAL_IRQ_DISABLE 178 LOCAL_IRQ_DISABLE