5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 25,36 ****
   */
  
  #ifndef _SYS_PCI_AXQ_H
  #define _SYS_PCI_AXQ_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/types.h>
  #include <sys/atomic.h>
  
  #ifdef  __cplusplus
  extern "C" {
--- 25,34 ----
*** 40,61 ****
                                  int n;\
                                  for (;;) {\
                                          do {\
                                                  n = p->pbm_pio_counter;\
                                          } while (n <= 0);\
!                                         if (atomic_add_32_nv(\
!                                             (uint_t *)&p->pbm_pio_counter, -1)\
                                              == (n - 1))\
                                                  break;\
!                                         atomic_add_32(\
!                                             (uint_t *)&p->pbm_pio_counter, 1);\
                                  }\
                                  }
  
  
  
! #define PIO_LIMIT_EXIT(p)       atomic_add_32((uint_t *)&p->pbm_pio_counter, 1);
  
  extern void pci_axq_setup(ddi_map_req_t *mp, pbm_t *pbm_p);
  extern void pci_axq_pio_limit(pbm_t *pbm_p);
  
  #ifdef  __cplusplus
--- 38,59 ----
                                  int n;\
                                  for (;;) {\
                                          do {\
                                                  n = p->pbm_pio_counter;\
                                          } while (n <= 0);\
!                                         if (atomic_dec_32_nv(\
!                                             (uint_t *)&p->pbm_pio_counter)\
                                              == (n - 1))\
                                                  break;\
!                                         atomic_inc_32(\
!                                             (uint_t *)&p->pbm_pio_counter);\
                                  }\
                                  }
  
  
  
! #define PIO_LIMIT_EXIT(p)       atomic_inc_32((uint_t *)&p->pbm_pio_counter);
  
  extern void pci_axq_setup(ddi_map_req_t *mp, pbm_t *pbm_p);
  extern void pci_axq_pio_limit(pbm_t *pbm_p);
  
  #ifdef  __cplusplus