*
* 26 - ESPFIX small SS
* 27 - per-cpu [ offset to per-cpu data area ]
- * 28 - unused
+ * 28 - VDSO getcpu
* 29 - unused
* 30 - unused
* 31 - TSS for double fault handler
#define GDT_ENTRY_ESPFIX_SS 26
#define GDT_ENTRY_PERCPU 27
+#define GDT_ENTRY_CPUNODE 28
#define GDT_ENTRY_DOUBLEFAULT_TSS 31
# define __KERNEL_PERCPU 0
#endif
+#define __CPUNODE_SEG (GDT_ENTRY_CPUNODE*8 + 3)
+
#else /* 64-bit: */
#include <asm/cache.h>
#define GDT_ENTRY_TLS_ENTRIES 3
#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES* 8)
-#ifdef CONFIG_X86_64
-
/* Bit size and mask of CPU number stored in the per CPU data (and TSC_AUX) */
#define VDSO_CPUNODE_BITS 12
#define VDSO_CPUNODE_MASK 0xfff
}
#endif /* !__ASSEMBLY__ */
-#endif /* CONFIG_X86_64 */
#ifdef __KERNEL__
#endif
}
-#ifdef CONFIG_X86_64
static inline void setup_getcpu(int cpu)
{
unsigned long cpudata = vdso_encode_cpunode(cpu, early_cpu_to_node(cpu));
write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_CPUNODE, &d, DESCTYPE_S);
}
+#ifdef CONFIG_X86_64
static inline void ucode_cpu_init(int cpu)
{
if (cpu)
#else /* CONFIG_X86_64 */
-static inline void setup_getcpu(int cpu) { }
-
static inline void ucode_cpu_init(int cpu)
{
show_ucode_info_early();