diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-09-04 20:09:03 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-05 09:40:48 +0200 |
| commit | d5494d4f517158b1d2eea1ae33f6c264eb12675f (patch) | |
| tree | 26990f4c8dfcd4b66041d71378e8074ff8ba982c /arch/x86/kernel/cpu/common_64.c | |
| parent | ba51dced0b55eb62874e1646d5eeff344c3d4e67 (diff) | |
x86: cpu/common*.c, make 32-bit have 64-bit only functions
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/common_64.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common_64.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common_64.c b/arch/x86/kernel/cpu/common_64.c index 40c9d89cc14..9f2a6ece82d 100644 --- a/arch/x86/kernel/cpu/common_64.c +++ b/arch/x86/kernel/cpu/common_64.c @@ -704,6 +704,7 @@ __setup("clearcpuid=", setup_disablecpuid); cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; +#ifdef CONFIG_X86_64 struct x8664_pda **_cpu_pda __read_mostly; EXPORT_SYMBOL(_cpu_pda); @@ -838,6 +839,17 @@ unsigned long kernel_eflags; */ DEFINE_PER_CPU(struct orig_ist, orig_ist); +#else + +/* Make sure %fs is initialized properly in idle threads */ +struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs) +{ + memset(regs, 0, sizeof(struct pt_regs)); + regs->fs = __KERNEL_PERCPU; + return regs; +} +#endif + /* * cpu_init() initializes state that is per-CPU. Some data is already * initialized (naturally) in the bootstrap process, such as the GDT |