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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-04-14 15:36:27 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-04-14 15:37:27 +0200 |
| commit | 5b409ed17bb32c8316b1f456466c70529454573a (patch) | |
| tree | db9731f053d7aee4fe27268febc95d3d9a9fde9d /arch/s390/kernel/entry.S | |
| parent | [S390] fix idle time accounting (diff) | |
| download | linux-5b409ed17bb32c8316b1f456466c70529454573a.tar.xz linux-5b409ed17bb32c8316b1f456466c70529454573a.zip | |
[S390] cpu hotplug and accounting values
Reset the cpu timer to the maximum value and correctly initialize the
cpu accounting values in the lowcore when the cpu is started.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 1268aa2991bf..f3e275934213 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -837,16 +837,29 @@ mcck_return: __CPUINIT .globl restart_int_handler restart_int_handler: + basr %r1,0 +restart_base: + spt restart_vtime-restart_base(%r1) + stck __LC_LAST_UPDATE_CLOCK + mvc __LC_LAST_UPDATE_TIMER(8),restart_vtime-restart_base(%r1) + mvc __LC_EXIT_TIMER(8),restart_vtime-restart_base(%r1) l %r15,__LC_SAVE_AREA+60 # load ksp lctl %c0,%c15,__LC_CREGS_SAVE_AREA # get new ctl regs lam %a0,%a15,__LC_AREGS_SAVE_AREA lm %r6,%r15,__SF_GPRS(%r15) # load registers from clone + l %r1,__LC_THREAD_INFO + mvc __LC_USER_TIMER(8),__TI_user_timer(%r1) + mvc __LC_SYSTEM_TIMER(8),__TI_system_timer(%r1) + xc __LC_STEAL_TIMER(8),__LC_STEAL_TIMER stosm __SF_EMPTY(%r15),0x04 # now we can turn dat on basr %r14,0 l %r14,restart_addr-.(%r14) br %r14 # branch to start_secondary restart_addr: .long start_secondary + .align 8 +restart_vtime: + .long 0x7fffffff,0xffffffff .previous #else /* |