diff options
Diffstat (limited to 'arch/arm64/kernel/setup.c')
| -rw-r--r-- | arch/arm64/kernel/setup.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index add6ea616843..5fdfc0255953 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -42,9 +42,11 @@ #include <linux/of_fdt.h> #include <linux/of_platform.h> +#include <asm/fixmap.h> #include <asm/cputype.h> #include <asm/elf.h> #include <asm/cputable.h> +#include <asm/cpu_ops.h> #include <asm/sections.h> #include <asm/setup.h> #include <asm/smp_plat.h> @@ -57,7 +59,7 @@ unsigned int processor_id; EXPORT_SYMBOL(processor_id); -unsigned int elf_hwcap __read_mostly; +unsigned long elf_hwcap __read_mostly; EXPORT_SYMBOL_GPL(elf_hwcap); static const char *cpu_name; @@ -97,15 +99,25 @@ void __init early_print(const char *str, ...) printk("%s", buf); } +void __init smp_setup_processor_id(void) +{ + /* + * clear __my_cpu_offset on boot CPU to avoid hang caused by + * using percpu variable early, for example, lockdep will + * access percpu variable inside lock_release + */ + set_my_cpu_offset(0); +} + +bool arch_match_cpu_phys_id(int cpu, u64 phys_id) +{ + return phys_id == cpu_logical_map(cpu); +} + static void __init setup_processor(void) { struct cpu_info *cpu_info; - /* - * locate processor in the list of supported processor - * types. The linker builds this table for us from the - * entries in arch/arm/mm/proc.S - */ cpu_info = lookup_processor_type(read_cpuid_id()); if (!cpu_info) { printk("CPU configuration botched (ID %08x), unable to continue.\n", @@ -257,6 +269,8 @@ void __init setup_arch(char **cmdline_p) *cmdline_p = boot_command_line; + early_ioremap_init(); + parse_early_param(); arm64_memblock_init(); @@ -269,6 +283,7 @@ void __init setup_arch(char **cmdline_p) psci_init(); cpu_logical_map(0) = read_cpuid_mpidr() & MPIDR_HWID_BITMASK; + cpu_read_bootcpu_ops(); #ifdef CONFIG_SMP smp_init_cpus(); #endif @@ -288,7 +303,7 @@ static int __init arm64_device_init(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); return 0; } -arch_initcall(arm64_device_init); +arch_initcall_sync(arm64_device_init); static DEFINE_PER_CPU(struct cpu, cpu_data); @@ -328,9 +343,6 @@ static int c_show(struct seq_file *m, void *v) #ifdef CONFIG_SMP seq_printf(m, "processor\t: %d\n", i); #endif - seq_printf(m, "BogoMIPS\t: %lu.%02lu\n\n", - loops_per_jiffy / (500000UL/HZ), - loops_per_jiffy / (5000UL/HZ) % 100); } /* dump out the processor features */ |