diff options
| author | Glauber Costa <gcosta@redhat.com> | 2008-05-28 13:01:54 -0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 12:48:18 +0200 |
| commit | 3e9704739daf46a8ba6593d749c67b5f7cd633d2 (patch) | |
| tree | f023ae0d0c9090b8cd2e478c487fdd2ff4275eb8 | |
| parent | e3f77edfc1d0beb7b10f9f31d9e39206f7dbef7b (diff) | |
x86: boot secondary cpus through initial_code
remove "initialize_secondary". Boot both architectures via
initial_code.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/kernel/head_32.S | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 25 |
2 files changed, 2 insertions, 25 deletions
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index ffb73a5b609f..f67e93441caf 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -452,7 +452,7 @@ is386: movl $2,%ecx # set MP je 1f movl $(__KERNEL_PERCPU), %eax movl %eax,%fs # set this cpu's percpu - jmp initialize_secondary # all other CPUs call initialize_secondary + movl (stack_start), %esp 1: #endif /* CONFIG_SMP */ jmp *(initial_code) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index fe2bd515d6cc..2a0d39f3f2f1 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -349,28 +349,6 @@ static void __cpuinit start_secondary(void *unused) cpu_idle(); } -#ifdef CONFIG_X86_32 -/* - * Everything has been set up for the secondary - * CPUs - they just need to reload everything - * from the task structure - * This function must not return. - */ -void __devinit initialize_secondary(void) -{ - /* - * We don't actually need to load the full TSS, - * basically just the stack pointer and the ip. - */ - - asm volatile( - "movl %0,%%esp\n\t" - "jmp *%1" - : - :"m" (current->thread.sp), "m" (current->thread.ip)); -} -#endif - static void __cpuinit smp_apply_quirks(struct cpuinfo_x86 *c) { #ifdef CONFIG_X86_32 @@ -892,16 +870,15 @@ do_rest: #ifdef CONFIG_X86_32 per_cpu(current_task, cpu) = c_idle.idle; init_gdt(cpu); - c_idle.idle->thread.ip = (unsigned long) start_secondary; /* Stack for startup_32 can be just as for start_secondary onwards */ irq_ctx_init(cpu); #else cpu_pda(cpu)->pcurrent = c_idle.idle; load_sp0(&per_cpu(init_tss, cpu), &c_idle.idle->thread); - initial_code = (unsigned long)start_secondary; clear_tsk_thread_flag(c_idle.idle, TIF_FORK); #endif early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); + initial_code = (unsigned long)start_secondary; stack_start.sp = (void *) c_idle.idle->thread.sp; /* start_ip had better be page-aligned! */ |