diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 107 |
1 files changed, 7 insertions, 100 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 5aab59ad5688..b58ee83f30e3 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -96,7 +96,6 @@ unsigned long int_hwcap = 0; int __bootdata(noexec_disabled); unsigned long __bootdata(ident_map_size); -unsigned long __bootdata(vmalloc_size); struct mem_detect_info __bootdata(mem_detect); struct exception_table_entry *__bootdata_preserved(__start_dma_ex_table); @@ -108,6 +107,9 @@ unsigned long __bootdata_preserved(__edma); unsigned long __bootdata_preserved(__kaslr_offset); unsigned int __bootdata_preserved(zlib_dfltcc_support); EXPORT_SYMBOL(zlib_dfltcc_support); +u64 __bootdata_preserved(stfle_fac_list[16]); +EXPORT_SYMBOL(stfle_fac_list); +u64 __bootdata_preserved(alt_stfle_fac_list[16]); unsigned long VMALLOC_START; EXPORT_SYMBOL(VMALLOC_START); @@ -165,7 +167,7 @@ static void __init set_preferred_console(void) else if (CONSOLE_IS_3270) add_preferred_console("tty3270", 0, NULL); else if (CONSOLE_IS_VT220) - add_preferred_console("ttyS", 1, NULL); + add_preferred_console("ttysclp", 0, NULL); else if (CONSOLE_IS_HVC) add_preferred_console("hvc", 0, NULL); } @@ -338,27 +340,6 @@ int __init arch_early_irq_init(void) return 0; } -static int __init stack_realloc(void) -{ - unsigned long old, new; - - old = S390_lowcore.async_stack - STACK_INIT_OFFSET; - new = stack_alloc(); - if (!new) - panic("Couldn't allocate async stack"); - WRITE_ONCE(S390_lowcore.async_stack, new + STACK_INIT_OFFSET); - free_pages(old, THREAD_SIZE_ORDER); - - old = S390_lowcore.mcck_stack - STACK_INIT_OFFSET; - new = stack_alloc(); - if (!new) - panic("Couldn't allocate machine check stack"); - WRITE_ONCE(S390_lowcore.mcck_stack, new + STACK_INIT_OFFSET); - memblock_free_late(old, THREAD_SIZE); - return 0; -} -early_initcall(stack_realloc); - void __init arch_call_rest_init(void) { unsigned long stack; @@ -413,11 +394,6 @@ static void __init setup_lowcore_dat_off(void) lc->lpp = LPP_MAGIC; lc->machine_flags = S390_lowcore.machine_flags; lc->preempt_count = S390_lowcore.preempt_count; - lc->stfl_fac_list = S390_lowcore.stfl_fac_list; - memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list, - sizeof(lc->stfle_fac_list)); - memcpy(lc->alt_stfle_fac_list, S390_lowcore.alt_stfle_fac_list, - sizeof(lc->alt_stfle_fac_list)); nmi_alloc_boot_cpu(lc); lc->sys_enter_timer = S390_lowcore.sys_enter_timer; lc->exit_timer = S390_lowcore.exit_timer; @@ -568,53 +544,10 @@ static void __init setup_resources(void) #endif } -static void __init setup_ident_map_size(void) +static void __init setup_memory_end(void) { - unsigned long vmax, tmp; - - /* Choose kernel address space layout: 3 or 4 levels. */ - tmp = ident_map_size / PAGE_SIZE; - tmp = tmp * (sizeof(struct page) + PAGE_SIZE); - if (tmp + vmalloc_size + MODULES_LEN <= _REGION2_SIZE) - vmax = _REGION2_SIZE; /* 3-level kernel page table */ - else - vmax = _REGION1_SIZE; /* 4-level kernel page table */ - /* module area is at the end of the kernel address space. */ - MODULES_END = vmax; - if (is_prot_virt_host()) - adjust_to_uv_max(&MODULES_END); -#ifdef CONFIG_KASAN - vmax = _REGION1_SIZE; - MODULES_END = kasan_vmax; -#endif - MODULES_VADDR = MODULES_END - MODULES_LEN; - VMALLOC_END = MODULES_VADDR; - VMALLOC_START = VMALLOC_END - vmalloc_size; - - /* Split remaining virtual space between 1:1 mapping & vmemmap array */ - tmp = VMALLOC_START / (PAGE_SIZE + sizeof(struct page)); - /* vmemmap contains a multiple of PAGES_PER_SECTION struct pages */ - tmp = SECTION_ALIGN_UP(tmp); - tmp = VMALLOC_START - tmp * sizeof(struct page); - tmp &= ~((vmax >> 11) - 1); /* align to page table level */ - tmp = min(tmp, 1UL << MAX_PHYSMEM_BITS); - vmemmap = (struct page *) tmp; - - /* Take care that ident_map_size <= vmemmap */ - ident_map_size = min(ident_map_size, (unsigned long)vmemmap); -#ifdef CONFIG_KASAN - ident_map_size = min(ident_map_size, KASAN_SHADOW_START); -#endif - vmemmap_size = SECTION_ALIGN_UP(ident_map_size / PAGE_SIZE) * sizeof(struct page); -#ifdef CONFIG_KASAN - /* move vmemmap above kasan shadow only if stands in a way */ - if (KASAN_SHADOW_END > (unsigned long)vmemmap && - (unsigned long)vmemmap + vmemmap_size > KASAN_SHADOW_START) - vmemmap = max(vmemmap, (struct page *)KASAN_SHADOW_END); -#endif - max_pfn = max_low_pfn = PFN_DOWN(ident_map_size); memblock_remove(ident_map_size, ULONG_MAX); - + max_pfn = max_low_pfn = PFN_DOWN(ident_map_size); pr_notice("The maximum memory size is %luMB\n", ident_map_size >> 20); } @@ -653,30 +586,6 @@ static void __init reserve_above_ident_map(void) } /* - * Make sure that oldmem, where the dump is stored, is protected - */ -static void __init reserve_oldmem(void) -{ -#ifdef CONFIG_CRASH_DUMP - if (OLDMEM_BASE) - /* Forget all memory above the running kdump system */ - memblock_reserve(OLDMEM_SIZE, (phys_addr_t)ULONG_MAX); -#endif -} - -/* - * Make sure that oldmem, where the dump is stored, is protected - */ -static void __init remove_oldmem(void) -{ -#ifdef CONFIG_CRASH_DUMP - if (OLDMEM_BASE) - /* Forget all memory above the running kdump system */ - memblock_remove(OLDMEM_SIZE, (phys_addr_t)ULONG_MAX); -#endif -} - -/* * Reserve memory for kdump kernel to be loaded with kexec */ static void __init reserve_crashkernel(void) @@ -1141,7 +1050,6 @@ void __init setup_arch(char **cmdline_p) /* Do some memory reservations *before* memory is added to memblock */ reserve_above_ident_map(); - reserve_oldmem(); reserve_kernel(); reserve_initrd(); reserve_certificate_list(); @@ -1152,10 +1060,9 @@ void __init setup_arch(char **cmdline_p) memblock_add_mem_detect_info(); free_mem_detect_info(); - remove_oldmem(); setup_uv(); - setup_ident_map_size(); + setup_memory_end(); setup_memory(); dma_contiguous_reserve(ident_map_size); vmcp_cma_reserve(); |