summaryrefslogblamecommitdiffstats
path: root/arch/x86/include/asm/spinlock_types.h
blob: 25311ebb446cd885137a4d076f2d6f75e8980809 (plain) (tree)
1
2
3
4
5
6
7
8
9
10

                                 
 

                        

                                 
                                               

                                 
                                               


                                                
                       
                           

                       
                           

      

                                                       
                                                
 
                                        
 
                                      
 
                                      
#ifndef _ASM_X86_SPINLOCK_TYPES_H
#define _ASM_X86_SPINLOCK_TYPES_H

#include <linux/types.h>

#ifdef CONFIG_PARAVIRT_SPINLOCKS
#define __TICKET_LOCK_INC	2
#define TICKET_SLOWPATH_FLAG	((__ticket_t)1)
#else
#define __TICKET_LOCK_INC	1
#define TICKET_SLOWPATH_FLAG	((__ticket_t)0)
#endif

#if (CONFIG_NR_CPUS < (256 / __TICKET_LOCK_INC))
typedef u8  __ticket_t;
typedef u16 __ticketpair_t;
#else
typedef u16 __ticket_t;
typedef u32 __ticketpair_t;
#endif

#define TICKET_LOCK_INC	((__ticket_t)__TICKET_LOCK_INC)

#define TICKET_SHIFT	(sizeof(__ticket_t) * 8)

#include <asm-generic/qspinlock_types.h>

#include <asm-generic/qrwlock_types.h>

#endif /* _ASM_X86_SPINLOCK_TYPES_H */