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Diffstat (limited to 'arch/s390/kernel/setup.c')
-rw-r--r--arch/s390/kernel/setup.c72
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