1688401a0f
Impact: Small cleanup Define BOOT_PERCPU_OFFSET and use it for this_cpu_offset and __per_cpu_offset initializers. Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
26 lines
585 B
C
26 lines
585 B
C
/*
|
|
* SMP stuff which is common to all sub-architectures.
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <asm/smp.h>
|
|
#include <asm/sections.h>
|
|
|
|
#ifdef CONFIG_X86_32
|
|
/*
|
|
* Initialize the CPU's GDT. This is either the boot CPU doing itself
|
|
* (still using the master per-cpu area), or a CPU doing it for a
|
|
* secondary which will soon come up.
|
|
*/
|
|
__cpuinit void init_gdt(int cpu)
|
|
{
|
|
struct desc_struct gdt;
|
|
|
|
pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF,
|
|
0x2 | DESCTYPE_S, 0x8);
|
|
gdt.s = 1;
|
|
|
|
write_gdt_entry(get_cpu_gdt_table(cpu),
|
|
GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
|
|
}
|
|
#endif
|