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[S390] eliminate ipl_device from lowcore

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Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2009-03-26 15:24:43 +01:00
parent 7b4684880d
commit da292bbe1f
5 changed files with 2 additions and 10 deletions
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8
arch/s390/include/asm/lowcore.h
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@ -80,7 +80,6 @@
#define __LC_USER_ASCE 0xC50
#define __LC_PANIC_STACK 0xC54
#define __LC_CPUID 0xC60
#define __LC_IPLDEV 0xC7C
#define __LC_CURRENT 0xC90
#define __LC_INT_CLOCK 0xC98
#else /* __s390x__ */
@ -101,7 +100,6 @@
#define __LC_USER_ASCE 0xD60
#define __LC_PANIC_STACK 0xD68
#define __LC_CPUID 0xD80
#define __LC_IPLDEV 0xDB8
#define __LC_CURRENT 0xDD8
#define __LC_INT_CLOCK 0xDE8
#define __LC_VDSO_PER_CPU 0xE38
@ -273,8 +271,7 @@ struct _lowcore
/* entry.S sensitive area start */
cpuid_t cpu_id; /* 0xc60 */
__u32 cpu_nr; /* 0xc68 */
__u32 ipl_device; /* 0xc6c */
__u8 pad_0xc70[0xc80-0xc70]; /* 0xc70 */
__u8 pad_0xc6c[0xc80-0xc6c]; /* 0xc6c */
/* entry.S sensitive area end */
/* SMP info area: defined by DJB */
@ -368,8 +365,7 @@ struct _lowcore
/* entry.S sensitive area start */
cpuid_t cpu_id; /* 0xd80 */
__u32 cpu_nr; /* 0xd88 */
__u32 ipl_device; /* 0xd8c */
__u8 pad_0xd90[0xdc0-0xd90]; /* 0xd90 */
__u8 pad_0xd8c[0xdc0-0xd8c]; /* 0xd8c */
/* entry.S sensitive area end */
/* SMP info area: defined by DJB */

1
arch/s390/kernel/head31.S
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@ -20,7 +20,6 @@ startup_continue:
lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
# move IPL device to lowcore
mvc __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12)
#
# Setup stack
#

1
arch/s390/kernel/head64.S
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@ -86,7 +86,6 @@ startup_continue:
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
# move IPL device to lowcore
mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12)
lghi %r0,__LC_PASTE
stg %r0,__LC_VDSO_PER_CPU
#

1
arch/s390/kernel/setup.c
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@ -419,7 +419,6 @@ setup_lowcore(void)
PSW_ADDR_AMODE | (unsigned long) mcck_int_handler;
lc->io_new_psw.mask = psw_kernel_bits;
lc->io_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) io_int_handler;
lc->ipl_device = S390_lowcore.ipl_device;
lc->clock_comparator = -1ULL;
lc->kernel_stack = ((unsigned long) &init_thread_union) + THREAD_SIZE;
lc->async_stack = (unsigned long)

1
arch/s390/kernel/smp.c
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@ -566,7 +566,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
cpu_lowcore->current_task = (unsigned long) idle;
cpu_lowcore->cpu_nr = cpu;
cpu_lowcore->kernel_asce = S390_lowcore.kernel_asce;
cpu_lowcore->ipl_device = S390_lowcore.ipl_device;
eieio();
while (signal_processor(cpu, sigp_restart) == sigp_busy)