Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

[linux-2.6-omap-h63xx.git] / arch / s390 / kernel / entry64.S

diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index a3e47b893f079ca812c54b727f4b3dd4b2a6a6c2..5a4a7bcd2bbad8e92e95eb529fb11559977c0dd9 100644 (file)
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -11,6 +11,7 @@
 
 #include <linux/sys.h>
 #include <linux/linkage.h>
+#include <linux/init.h>
 #include <asm/cache.h>
 #include <asm/lowcore.h>
 #include <asm/errno.h>
@@ -51,9 +52,9 @@ SP_SIZE      =        STACK_FRAME_OVERHEAD + __PT_SIZE
 STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER
 STACK_SIZE  = 1 << STACK_SHIFT
 
-_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NEED_RESCHED | \
+_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
                 _TIF_MCCK_PENDING | _TIF_RESTART_SVC | _TIF_SINGLE_STEP )
-_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NEED_RESCHED | \
+_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
                 _TIF_MCCK_PENDING)
 
 #define BASED(name) name-system_call(%r13)
@@ -307,7 +308,7 @@ sysc_work:
        jo      sysc_mcck_pending
        tm      __TI_flags+7(%r9),_TIF_NEED_RESCHED
        jo      sysc_reschedule
-       tm      __TI_flags+7(%r9),(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)
+       tm      __TI_flags+7(%r9),_TIF_SIGPENDING
        jnz     sysc_sigpending
        tm      __TI_flags+7(%r9),_TIF_RESTART_SVC
        jo      sysc_restart
@@ -331,7 +332,7 @@ sysc_mcck_pending:
        jg      s390_handle_mcck        # TIF bit will be cleared by handler
 
 #
-# _TIF_SIGPENDING or _TIF_RESTORE_SIGMASK is set, call do_signal
+# _TIF_SIGPENDING is set, call do_signal
 #
 sysc_sigpending:
        ni      __TI_flags+7(%r9),255-_TIF_SINGLE_STEP # clear TIF_SINGLE_STEP
@@ -474,6 +475,7 @@ pgm_check_handler:
 pgm_no_vtime:
 #endif
        lg      %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+       mvc     SP_ARGS(8,%r15),__LC_LAST_BREAK
        TRACE_IRQS_OFF
        lgf     %r3,__LC_PGM_ILC        # load program interruption code
        lghi    %r8,0x7f
@@ -646,7 +648,7 @@ io_work_loop:
        jo      io_mcck_pending
        tm      __TI_flags+7(%r9),_TIF_NEED_RESCHED
        jo      io_reschedule
-       tm      __TI_flags+7(%r9),(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)
+       tm      __TI_flags+7(%r9),_TIF_SIGPENDING
        jnz     io_sigpending
        j       io_restore
 io_work_done:
@@ -672,7 +674,7 @@ io_reschedule:
        j       io_work_loop
 
 #
-# _TIF_SIGPENDING or _TIF_RESTORE_SIGMASK is set, call do_signal
+# _TIF_SIGPENDING or is set, call do_signal
 #
 io_sigpending:
        TRACE_IRQS_ON
@@ -801,9 +803,7 @@ mcck_return:
  * Restart interruption handler, kick starter for additional CPUs
  */
 #ifdef CONFIG_SMP
-#ifndef CONFIG_HOTPLUG_CPU
-       .section .init.text,"ax"
-#endif
+       __CPUINIT
        .globl restart_int_handler
 restart_int_handler:
        lg      %r15,__LC_SAVE_AREA+120 # load ksp
@@ -814,9 +814,7 @@ restart_int_handler:
        lmg     %r6,%r15,__SF_GPRS(%r15) # load registers from clone
        stosm   __SF_EMPTY(%r15),0x04   # now we can turn dat on
        jg      start_secondary
-#ifndef CONFIG_HOTPLUG_CPU
        .previous
-#endif
 #else
 /*
  * If we do not run with SMP enabled, let the new CPU crash ...
@@ -850,6 +848,7 @@ stack_overflow:
        je      0f
        la      %r1,__LC_SAVE_AREA+32
 0:     mvc     SP_R12(32,%r15),0(%r1)  # move %r12-%r15 to stack
+       mvc     SP_ARGS(8,%r15),__LC_LAST_BREAK
        xc      __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) # clear back chain
        la      %r2,SP_PTREGS(%r15)     # load pt_regs
        jg      kernel_stack_overflow