diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index a5ea8bc17cb3..7262fe438c99 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -92,10 +92,8 @@ EXPORT_SYMBOL(VMALLOC_END); struct page *vmemmap; EXPORT_SYMBOL(vmemmap); -#ifdef CONFIG_64BIT unsigned long MODULES_VADDR; unsigned long MODULES_END; -#endif /* An array with a pointer to the lowcore of every CPU. */ struct _lowcore *lowcore_ptr[NR_CPUS]; @@ -334,19 +332,10 @@ static void __init setup_lowcore(void) lc->stfl_fac_list = S390_lowcore.stfl_fac_list; memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list, MAX_FACILITY_BIT/8); -#ifndef CONFIG_64BIT - if (MACHINE_HAS_IEEE) { - lc->extended_save_area_addr = (__u32) - __alloc_bootmem_low(PAGE_SIZE, PAGE_SIZE, 0); - /* enable extended save area */ - __ctl_set_bit(14, 29); - } -#else if (MACHINE_HAS_VX) lc->vector_save_area_addr = (unsigned long) &lc->vector_save_area; lc->vdso_per_cpu_data = (unsigned long) &lc->paste[0]; -#endif lc->sync_enter_timer = S390_lowcore.sync_enter_timer; lc->async_enter_timer = S390_lowcore.async_enter_timer; lc->exit_timer = S390_lowcore.exit_timer; @@ -450,7 +439,6 @@ static void __init setup_memory_end(void) unsigned long vmax, vmalloc_size, tmp; /* Choose kernel address space layout: 2, 3, or 4 levels. */ -#ifdef CONFIG_64BIT vmalloc_size = VMALLOC_END ?: (128UL << 30) - MODULES_LEN; tmp = (memory_end ?: max_physmem_end) / PAGE_SIZE; tmp = tmp * (sizeof(struct page) + PAGE_SIZE); @@ -462,12 +450,6 @@ static void __init setup_memory_end(void) MODULES_END = vmax; MODULES_VADDR = MODULES_END - MODULES_LEN; VMALLOC_END = MODULES_VADDR; -#else - vmalloc_size = VMALLOC_END ?: 96UL << 20; - vmax = 1UL << 31; /* 2-level kernel page table */ - /* vmalloc area is at the end of the kernel address space. */ - VMALLOC_END = vmax; -#endif VMALLOC_START = vmax - vmalloc_size; /* Split remaining virtual space between 1:1 mapping & vmemmap array */ @@ -754,7 +736,6 @@ static void __init setup_hwcaps(void) if (MACHINE_HAS_HPAGE) elf_hwcap |= HWCAP_S390_HPAGE; -#if defined(CONFIG_64BIT) /* * 64-bit register support for 31-bit processes * HWCAP_S390_HIGH_GPRS is bit 9. @@ -772,22 +753,15 @@ static void __init setup_hwcaps(void) */ if (test_facility(129)) elf_hwcap |= HWCAP_S390_VXRS; -#endif - get_cpu_id(&cpu_id); add_device_randomness(&cpu_id, sizeof(cpu_id)); switch (cpu_id.machine) { case 0x9672: -#if !defined(CONFIG_64BIT) - default: /* Use "g5" as default for 31 bit kernels. */ -#endif strcpy(elf_platform, "g5"); break; case 0x2064: case 0x2066: -#if defined(CONFIG_64BIT) default: /* Use "z900" as default for 64 bit kernels. */ -#endif strcpy(elf_platform, "z900"); break; case 0x2084: @@ -839,19 +813,6 @@ void __init setup_arch(char **cmdline_p) /* * print what head.S has found out about the machine */ -#ifndef CONFIG_64BIT - if (MACHINE_IS_VM) - pr_info("Linux is running as a z/VM " - "guest operating system in 31-bit mode\n"); - else if (MACHINE_IS_LPAR) - pr_info("Linux is running natively in 31-bit mode\n"); - if (MACHINE_HAS_IEEE) - pr_info("The hardware system has IEEE compatible " - "floating point units\n"); - else - pr_info("The hardware system has no IEEE compatible " - "floating point units\n"); -#else /* CONFIG_64BIT */ if (MACHINE_IS_VM) pr_info("Linux is running as a z/VM " "guest operating system in 64-bit mode\n"); @@ -859,7 +820,6 @@ void __init setup_arch(char **cmdline_p) pr_info("Linux is running under KVM in 64-bit mode\n"); else if (MACHINE_IS_LPAR) pr_info("Linux is running natively in 64-bit mode\n"); -#endif /* CONFIG_64BIT */ /* Have one command line that is parsed and saved in /proc/cmdline */ /* boot_command_line has been already set up in early.c */ @@ -930,35 +890,3 @@ void __init setup_arch(char **cmdline_p) /* Add system specific data to the random pool */ setup_randomness(); } - -#ifdef CONFIG_32BIT -static int no_removal_warning __initdata; - -static int __init parse_no_removal_warning(char *str) -{ - no_removal_warning = 1; - return 0; -} -__setup("no_removal_warning", parse_no_removal_warning); - -static int __init removal_warning(void) -{ - if (no_removal_warning) - return 0; - printk(KERN_ALERT "\n\n"); - printk(KERN_CONT "Warning - you are using a 31 bit kernel!\n\n"); - printk(KERN_CONT "We plan to remove 31 bit kernel support from the kernel sources in March 2015.\n"); - printk(KERN_CONT "Currently we assume that nobody is using the 31 bit kernel on old 31 bit\n"); - printk(KERN_CONT "hardware anymore. If you think that the code should not be removed and also\n"); - printk(KERN_CONT "future versions of the Linux kernel should be able to run in 31 bit mode\n"); - printk(KERN_CONT "please let us know. Please write to:\n"); - printk(KERN_CONT "linux390@de.ibm.com (mail address) and/or\n"); - printk(KERN_CONT "linux-s390@vger.kernel.org (mailing list).\n\n"); - printk(KERN_CONT "Thank you!\n\n"); - printk(KERN_CONT "If this kernel runs on a 64 bit machine you may consider using a 64 bit kernel.\n"); - printk(KERN_CONT "This message can be disabled with the \"no_removal_warning\" kernel parameter.\n"); - schedule_timeout_uninterruptible(300 * HZ); - return 0; -} -early_initcall(removal_warning); -#endif |