diff options
Diffstat (limited to 'arch/xtensa/kernel/entry.S')
| -rw-r--r-- | arch/xtensa/kernel/entry.S | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index 90bfc1dbc13d..41ad9cfe9a2a 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -219,6 +219,7 @@ _user_exception: j common_exception +ENDPROC(user_exception) /* * First-level exit handler for kernel exceptions @@ -641,6 +642,8 @@ common_exception_exit: l32i a1, a1, PT_AREG1 rfde +ENDPROC(kernel_exception) + /* * Debug exception handler. * @@ -701,6 +704,7 @@ ENTRY(debug_exception) /* Debug exception while in exception mode. */ 1: j 1b // FIXME!! +ENDPROC(debug_exception) /* * We get here in case of an unrecoverable exception. @@ -751,6 +755,7 @@ ENTRY(unrecoverable_exception) 1: j 1b +ENDPROC(unrecoverable_exception) /* -------------------------- FAST EXCEPTION HANDLERS ----------------------- */ @@ -929,6 +934,7 @@ ENTRY(fast_alloca) l32i a2, a2, PT_AREG2 rfe +ENDPROC(fast_alloca) /* * fast system calls. @@ -966,6 +972,8 @@ ENTRY(fast_syscall_kernel) j kernel_exception +ENDPROC(fast_syscall_kernel) + ENTRY(fast_syscall_user) /* Skip syscall. */ @@ -983,6 +991,8 @@ ENTRY(fast_syscall_user) j user_exception +ENDPROC(fast_syscall_user) + ENTRY(fast_syscall_unrecoverable) /* Restore all states. */ @@ -995,7 +1005,7 @@ ENTRY(fast_syscall_unrecoverable) movi a0, unrecoverable_exception callx0 a0 - +ENDPROC(fast_syscall_unrecoverable) /* * sysxtensa syscall handler @@ -1101,7 +1111,7 @@ CATCH movi a2, -EINVAL rfe - +ENDPROC(fast_syscall_xtensa) /* fast_syscall_spill_registers. @@ -1160,6 +1170,8 @@ ENTRY(fast_syscall_spill_registers) movi a2, 0 rfe +ENDPROC(fast_syscall_spill_registers) + /* Fixup handler. * * We get here if the spill routine causes an exception, e.g. tlb miss. @@ -1464,6 +1476,8 @@ ENTRY(_spill_registers) callx0 a0 # should not return 1: j 1b +ENDPROC(_spill_registers) + #ifdef CONFIG_MMU /* * We should never get here. Bail out! @@ -1475,6 +1489,8 @@ ENTRY(fast_second_level_miss_double_kernel) callx0 a0 # should not return 1: j 1b +ENDPROC(fast_second_level_miss_double_kernel) + /* First-level entry handler for user, kernel, and double 2nd-level * TLB miss exceptions. Note that for now, user and kernel miss * exceptions share the same entry point and are handled identically. @@ -1682,6 +1698,7 @@ ENTRY(fast_second_level_miss) j _kernel_exception 1: j _user_exception +ENDPROC(fast_second_level_miss) /* * StoreProhibitedException @@ -1777,6 +1794,9 @@ ENTRY(fast_store_prohibited) bbsi.l a2, PS_UM_BIT, 1f j _kernel_exception 1: j _user_exception + +ENDPROC(fast_store_prohibited) + #endif /* CONFIG_MMU */ /* @@ -1787,6 +1807,7 @@ ENTRY(fast_store_prohibited) */ ENTRY(system_call) + entry a1, 32 /* regs->syscall = regs->areg[2] */ @@ -1831,6 +1852,8 @@ ENTRY(system_call) callx4 a4 retw +ENDPROC(system_call) + /* * Task switch. @@ -1899,6 +1922,7 @@ ENTRY(_switch_to) retw +ENDPROC(_switch_to) ENTRY(ret_from_fork) @@ -1914,6 +1938,8 @@ ENTRY(ret_from_fork) j common_exception_return +ENDPROC(ret_from_fork) + /* * Kernel thread creation helper * On entry, set up by copy_thread: a2 = thread_fn, a3 = thread_fn arg |