diff options
Diffstat (limited to 'arch/m68k/kernel/setup_mm.c')
| -rw-r--r-- | arch/m68k/kernel/setup_mm.c | 94 |
1 files changed, 35 insertions, 59 deletions
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c index 528484feff80..10310b04f77d 100644 --- a/arch/m68k/kernel/setup_mm.c +++ b/arch/m68k/kernel/setup_mm.c @@ -10,13 +10,13 @@ */ #include <linux/kernel.h> +#include <linux/cpu.h> #include <linux/mm.h> #include <linux/sched.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/fs.h> #include <linux/console.h> -#include <linux/genhd.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/init.h> @@ -26,6 +26,7 @@ #include <linux/module.h> #include <linux/nvram.h> #include <linux/initrd.h> +#include <linux/random.h> #include <asm/bootinfo.h> #include <asm/byteorder.h> @@ -47,6 +48,7 @@ #endif #include <asm/macintosh.h> #include <asm/natfeat.h> +#include <asm/config.h> #if !FPSTATESIZE || !NR_IRQS #warning No CPU/platform type selected, your kernel will not work! @@ -82,24 +84,13 @@ static struct m68k_mem_info m68k_ramdisk __initdata; static char m68k_command_line[CL_SIZE] __initdata; -void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL; +void (*mach_sched_init) (void) __initdata = NULL; /* machine dependent irq functions */ void (*mach_init_IRQ) (void) __initdata = NULL; void (*mach_get_model) (char *model); void (*mach_get_hardware_list) (struct seq_file *m); -/* machine dependent timer functions */ -int (*mach_hwclk) (int, struct rtc_time*); -EXPORT_SYMBOL(mach_hwclk); -unsigned int (*mach_get_ss)(void); -int (*mach_get_rtc_pll)(struct rtc_pll_info *); -int (*mach_set_rtc_pll)(struct rtc_pll_info *); -EXPORT_SYMBOL(mach_get_ss); -EXPORT_SYMBOL(mach_get_rtc_pll); -EXPORT_SYMBOL(mach_set_rtc_pll); void (*mach_reset)( void ); void (*mach_halt)( void ); -void (*mach_power_off)( void ); -long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */ #ifdef CONFIG_HEARTBEAT void (*mach_heartbeat) (int); EXPORT_SYMBOL(mach_heartbeat); @@ -114,38 +105,13 @@ EXPORT_SYMBOL(isa_type); EXPORT_SYMBOL(isa_sex); #endif -extern int amiga_parse_bootinfo(const struct bi_record *); -extern int atari_parse_bootinfo(const struct bi_record *); -extern int mac_parse_bootinfo(const struct bi_record *); -extern int q40_parse_bootinfo(const struct bi_record *); -extern int bvme6000_parse_bootinfo(const struct bi_record *); -extern int mvme16x_parse_bootinfo(const struct bi_record *); -extern int mvme147_parse_bootinfo(const struct bi_record *); -extern int hp300_parse_bootinfo(const struct bi_record *); -extern int apollo_parse_bootinfo(const struct bi_record *); - -extern void config_amiga(void); -extern void config_atari(void); -extern void config_mac(void); -extern void config_sun3(void); -extern void config_apollo(void); -extern void config_mvme147(void); -extern void config_mvme16x(void); -extern void config_bvme6000(void); -extern void config_hp300(void); -extern void config_q40(void); -extern void config_sun3x(void); - #define MASK_256K 0xfffc0000 -extern void paging_init(void); - static void __init m68k_parse_bootinfo(const struct bi_record *record) { + const struct bi_record *first_record = record; uint16_t tag; - save_bootinfo(record); - while ((tag = be16_to_cpu(record->tag)) != BI_LAST) { int unknown = 0; const void *data = record->data; @@ -181,10 +147,21 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record) break; case BI_COMMAND_LINE: - strlcpy(m68k_command_line, data, + strscpy(m68k_command_line, data, sizeof(m68k_command_line)); break; + case BI_RNG_SEED: { + u16 len = be16_to_cpup(data); + add_bootloader_randomness(data + 2, len); + /* + * Zero the data to preserve forward secrecy, and zero the + * length to prevent kexec from using it. + */ + memzero_explicit((void *)data, len + 2); + break; + } + default: if (MACH_IS_AMIGA) unknown = amiga_parse_bootinfo(record); @@ -204,6 +181,8 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record) unknown = hp300_parse_bootinfo(record); else if (MACH_IS_APOLLO) unknown = apollo_parse_bootinfo(record); + else if (MACH_IS_VIRT) + unknown = virt_parse_bootinfo(record); else unknown = 1; } @@ -213,6 +192,8 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record) record = (struct bi_record *)((unsigned long)record + size); } + save_bootinfo(first_record); + m68k_realnum_memory = m68k_num_memory; #ifdef CONFIG_SINGLE_MEMORY_CHUNK if (m68k_num_memory > 1) { @@ -259,10 +240,7 @@ void __init setup_arch(char **cmdline_p) } } - init_mm.start_code = PAGE_OFFSET; - init_mm.end_code = (unsigned long)_etext; - init_mm.end_data = (unsigned long)_edata; - init_mm.brk = (unsigned long)_end; + setup_initial_init_mm((void *)PAGE_OFFSET, _etext, _edata, _end); #if defined(CONFIG_BOOTPARAM) strncpy(m68k_command_line, CONFIG_BOOTPARAM_STRING, CL_SIZE); @@ -274,10 +252,6 @@ void __init setup_arch(char **cmdline_p) parse_early_param(); -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; -#endif - switch (m68k_machtype) { #ifdef CONFIG_AMIGA case MACH_AMIGA: @@ -342,24 +316,28 @@ void __init setup_arch(char **cmdline_p) config_BSP(NULL, 0); break; #endif +#ifdef CONFIG_VIRT + case MACH_VIRT: + config_virt(); + break; +#endif default: panic("No configuration setup"); } - paging_init(); + if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && m68k_ramdisk.size) + memblock_reserve(m68k_ramdisk.addr, m68k_ramdisk.size); -#ifdef CONFIG_NATFEAT - nf_init(); -#endif + paging_init(); -#ifndef CONFIG_SUN3 -#ifdef CONFIG_BLK_DEV_INITRD - if (m68k_ramdisk.size) { - memblock_reserve(m68k_ramdisk.addr, m68k_ramdisk.size); + if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && m68k_ramdisk.size) { initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); initrd_end = initrd_start + m68k_ramdisk.size; pr_info("initrd: %08lx - %08lx\n", initrd_start, initrd_end); } + +#ifdef CONFIG_NATFEAT + nf_init(); #endif #ifdef CONFIG_ATARI @@ -372,8 +350,6 @@ void __init setup_arch(char **cmdline_p) } #endif -#endif /* !CONFIG_SUN3 */ - /* set ISA defs early as possible */ #if defined(CONFIG_ISA) && defined(MULTI_ISA) if (MACH_IS_Q40) { @@ -527,7 +503,7 @@ static int __init proc_hardware_init(void) module_init(proc_hardware_init); #endif -void check_bugs(void) +void __init arch_cpu_finalize_init(void) { #if defined(CONFIG_FPU) && !defined(CONFIG_M68KFPU_EMU) if (m68k_fputype == 0) { |