setup.c (cea0bb1bc59b94625e60b69aaa9ad6749d5b57dd) setup.c (be370302742ff9948f2a42b15cb2ba174d97b930)
1/*
2 * linux/arch/arm/kernel/setup.c
3 *
4 * Copyright (C) 1995-2001 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

--- 5 unchanged lines hidden (view full) ---

14#include <linux/delay.h>
15#include <linux/utsname.h>
16#include <linux/initrd.h>
17#include <linux/console.h>
18#include <linux/bootmem.h>
19#include <linux/seq_file.h>
20#include <linux/screen_info.h>
21#include <linux/init.h>
1/*
2 * linux/arch/arm/kernel/setup.c
3 *
4 * Copyright (C) 1995-2001 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

--- 5 unchanged lines hidden (view full) ---

14#include <linux/delay.h>
15#include <linux/utsname.h>
16#include <linux/initrd.h>
17#include <linux/console.h>
18#include <linux/bootmem.h>
19#include <linux/seq_file.h>
20#include <linux/screen_info.h>
21#include <linux/init.h>
22#include <linux/kexec.h>
23#include <linux/crash_dump.h>
24#include <linux/root_dev.h>
25#include <linux/cpu.h>
26#include <linux/interrupt.h>
27#include <linux/smp.h>
28#include <linux/fs.h>
29#include <linux/proc_fs.h>
30
31#include <asm/unified.h>

--- 234 unchanged lines hidden (view full) ---

266
267/*
268 * These functions re-use the assembly code in head.S, which
269 * already provide the required functionality.
270 */
271extern struct proc_info_list *lookup_processor_type(unsigned int);
272extern struct machine_desc *lookup_machine_type(unsigned int);
273
22#include <linux/root_dev.h>
23#include <linux/cpu.h>
24#include <linux/interrupt.h>
25#include <linux/smp.h>
26#include <linux/fs.h>
27#include <linux/proc_fs.h>
28
29#include <asm/unified.h>

--- 234 unchanged lines hidden (view full) ---

264
265/*
266 * These functions re-use the assembly code in head.S, which
267 * already provide the required functionality.
268 */
269extern struct proc_info_list *lookup_processor_type(unsigned int);
270extern struct machine_desc *lookup_machine_type(unsigned int);
271
274static void __init feat_v6_fixup(void)
275{
276 int id = read_cpuid_id();
277
278 if ((id & 0xff0f0000) != 0x41070000)
279 return;
280
281 /*
282 * HWCAP_TLS is available only on 1136 r1p0 and later,
283 * see also kuser_get_tls_init.
284 */
285 if ((((id >> 4) & 0xfff) == 0xb36) && (((id >> 20) & 3) == 0))
286 elf_hwcap &= ~HWCAP_TLS;
287}
288
289static void __init setup_processor(void)
290{
291 struct proc_info_list *list;
292
293 /*
294 * locate processor in the list of supported processor
295 * types. The linker builds this table for us from the
296 * entries in arch/arm/mm/proc-*.S

--- 26 unchanged lines hidden (view full) ---

323
324 sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS);
325 sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS);
326 elf_hwcap = list->elf_hwcap;
327#ifndef CONFIG_ARM_THUMB
328 elf_hwcap &= ~HWCAP_THUMB;
329#endif
330
272static void __init setup_processor(void)
273{
274 struct proc_info_list *list;
275
276 /*
277 * locate processor in the list of supported processor
278 * types. The linker builds this table for us from the
279 * entries in arch/arm/mm/proc-*.S

--- 26 unchanged lines hidden (view full) ---

306
307 sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS);
308 sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS);
309 elf_hwcap = list->elf_hwcap;
310#ifndef CONFIG_ARM_THUMB
311 elf_hwcap &= ~HWCAP_THUMB;
312#endif
313
331 feat_v6_fixup();
332
333 cacheid_init();
334 cpu_proc_init();
335}
336
337/*
338 * cpu_init - initialise one CPU.
339 *
340 * cpu_init sets up the per-CPU stacks.

--- 75 unchanged lines hidden (view full) ---

416
417 /*
418 * Ensure that start/size are aligned to a page boundary.
419 * Size is appropriately rounded down, start is rounded up.
420 */
421 size -= start & ~PAGE_MASK;
422 bank->start = PAGE_ALIGN(start);
423 bank->size = size & PAGE_MASK;
314 cacheid_init();
315 cpu_proc_init();
316}
317
318/*
319 * cpu_init - initialise one CPU.
320 *
321 * cpu_init sets up the per-CPU stacks.

--- 75 unchanged lines hidden (view full) ---

397
398 /*
399 * Ensure that start/size are aligned to a page boundary.
400 * Size is appropriately rounded down, start is rounded up.
401 */
402 size -= start & ~PAGE_MASK;
403 bank->start = PAGE_ALIGN(start);
404 bank->size = size & PAGE_MASK;
424 bank->node = PHYS_TO_NID(start);
425
426 /*
427 * Check whether this memory region has non-zero size or
428 * invalid node number.
429 */
405
406 /*
407 * Check whether this memory region has non-zero size or
408 * invalid node number.
409 */
430 if (bank->size == 0 || bank->node >= MAX_NUMNODES)
410 if (bank->size == 0)
431 return -EINVAL;
432
433 meminfo.nr_banks++;
434 return 0;
435}
436
437/*
438 * Pick out the memory size. We look for mem=size@start,

--- 238 unchanged lines hidden (view full) ---

677{
678 /* customizes platform devices, or adds new ones */
679 if (init_machine)
680 init_machine();
681 return 0;
682}
683arch_initcall(customize_machine);
684
411 return -EINVAL;
412
413 meminfo.nr_banks++;
414 return 0;
415}
416
417/*
418 * Pick out the memory size. We look for mem=size@start,

--- 238 unchanged lines hidden (view full) ---

657{
658 /* customizes platform devices, or adds new ones */
659 if (init_machine)
660 init_machine();
661 return 0;
662}
663arch_initcall(customize_machine);
664
685#ifdef CONFIG_KEXEC
686static inline unsigned long long get_total_mem(void)
687{
688 unsigned long total;
689
690 total = max_low_pfn - min_low_pfn;
691 return total << PAGE_SHIFT;
692}
693
694/**
695 * reserve_crashkernel() - reserves memory are for crash kernel
696 *
697 * This function reserves memory area given in "crashkernel=" kernel command
698 * line parameter. The memory reserved is used by a dump capture kernel when
699 * primary kernel is crashing.
700 */
701static void __init reserve_crashkernel(void)
702{
703 unsigned long long crash_size, crash_base;
704 unsigned long long total_mem;
705 int ret;
706
707 total_mem = get_total_mem();
708 ret = parse_crashkernel(boot_command_line, total_mem,
709 &crash_size, &crash_base);
710 if (ret)
711 return;
712
713 ret = reserve_bootmem(crash_base, crash_size, BOOTMEM_EXCLUSIVE);
714 if (ret < 0) {
715 printk(KERN_WARNING "crashkernel reservation failed - "
716 "memory is in use (0x%lx)\n", (unsigned long)crash_base);
717 return;
718 }
719
720 printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
721 "for crashkernel (System RAM: %ldMB)\n",
722 (unsigned long)(crash_size >> 20),
723 (unsigned long)(crash_base >> 20),
724 (unsigned long)(total_mem >> 20));
725
726 crashk_res.start = crash_base;
727 crashk_res.end = crash_base + crash_size - 1;
728 insert_resource(&iomem_resource, &crashk_res);
729}
730#else
731static inline void reserve_crashkernel(void) {}
732#endif /* CONFIG_KEXEC */
733
734/*
735 * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
736 * is_kdump_kernel() to determine if we are booting after a panic. Hence
737 * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
738 */
739
740#ifdef CONFIG_CRASH_DUMP
741/*
742 * elfcorehdr= specifies the location of elf core header stored by the crashed
743 * kernel. This option will be passed by kexec loader to the capture kernel.
744 */
745static int __init setup_elfcorehdr(char *arg)
746{
747 char *end;
748
749 if (!arg)
750 return -EINVAL;
751
752 elfcorehdr_addr = memparse(arg, &end);
753 return end > arg ? 0 : -EINVAL;
754}
755early_param("elfcorehdr", setup_elfcorehdr);
756#endif /* CONFIG_CRASH_DUMP */
757
758void __init setup_arch(char **cmdline_p)
759{
760 struct tag *tags = (struct tag *)&init_tags;
761 struct machine_desc *mdesc;
762 char *from = default_command_line;
763
764 unwind_init();
765

--- 43 unchanged lines hidden (view full) ---

809 parse_early_param();
810
811 paging_init(mdesc);
812 request_standard_resources(&meminfo, mdesc);
813
814#ifdef CONFIG_SMP
815 smp_init_cpus();
816#endif
665void __init setup_arch(char **cmdline_p)
666{
667 struct tag *tags = (struct tag *)&init_tags;
668 struct machine_desc *mdesc;
669 char *from = default_command_line;
670
671 unwind_init();
672

--- 43 unchanged lines hidden (view full) ---

716 parse_early_param();
717
718 paging_init(mdesc);
719 request_standard_resources(&meminfo, mdesc);
720
721#ifdef CONFIG_SMP
722 smp_init_cpus();
723#endif
817 reserve_crashkernel();
818
819 cpu_init();
820 tcm_init();
821
822 /*
823 * Set up various architecture-specific pointers
824 */
724
725 cpu_init();
726 tcm_init();
727
728 /*
729 * Set up various architecture-specific pointers
730 */
825 arch_nr_irqs = mdesc->nr_irqs;
826 init_arch_irq = mdesc->init_irq;
827 system_timer = mdesc->timer;
828 init_machine = mdesc->init_machine;
829
830#ifdef CONFIG_VT
831#if defined(CONFIG_VGA_CONSOLE)
832 conswitchp = &vga_con;
833#elif defined(CONFIG_DUMMY_CONSOLE)

--- 137 unchanged lines hidden --- 		731 init_arch_irq = mdesc->init_irq;
732 system_timer = mdesc->timer;
733 init_machine = mdesc->init_machine;
734
735#ifdef CONFIG_VT
736#if defined(CONFIG_VGA_CONSOLE)
737 conswitchp = &vga_con;
738#elif defined(CONFIG_DUMMY_CONSOLE)

--- 137 unchanged lines hidden ---