include/asm-ia64/mca.h

   1 /*
   2  * File:        mca.h
   3  * Purpose:     Machine check handling specific defines
   4  *
   5  * Copyright (C) 1999 Silicon Graphics, Inc.
   6  * Copyright (C) Vijay Chander (vijay@engr.sgi.com)
   7  * Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com)
   8  */
   9
  10 #ifndef _ASM_IA64_MCA_H
  11 #define _ASM_IA64_MCA_H
  12
  13 #if !defined(__ASSEMBLY__)
  14 #include <linux/types.h>
  15 #include <asm/param.h>
  16 #include <asm/sal.h>
  17 #include <asm/processor.h>
  18
  19 /* These are the return codes from all the IA64_MCA specific interfaces */
  20 typedef int ia64_mca_return_code_t;
  21
  22 enum {
  23         IA64_MCA_SUCCESS        =       0,
  24         IA64_MCA_FAILURE        =       1
  25 };
  26
  27 #define IA64_MCA_RENDEZ_TIMEOUT         (20 * 1000)     /* value in milliseconds - 20 seconds */
  28
  29 #define IA64_CMC_INT_DISABLE            0
  30 #define IA64_CMC_INT_ENABLE             1
  31
  32
  33 typedef u32 int_vector_t;
  34 typedef u64 millisec_t;
  35
  36 typedef union cmcv_reg_u {
  37         u64     cmcv_regval;
  38         struct  {
  39                 u64     cmcr_vector             : 8;
  40                 u64     cmcr_reserved1          : 4;
  41                 u64     cmcr_ignored1           : 1;
  42                 u64     cmcr_reserved2          : 3;
  43                 u64     cmcr_mask               : 1;
  44                 u64     cmcr_ignored2           : 47;
  45         } cmcv_reg_s;
  46
  47 } cmcv_reg_t;
  48
  49 #define cmcv_mask               cmcv_reg_s.cmcr_mask
  50 #define cmcv_vector             cmcv_reg_s.cmcr_vector
  51
  52
  53 #define IA64_MCA_UCMC_HANDLER_SIZE      0x10
  54 #define IA64_INIT_HANDLER_SIZE          0x10
  55
  56 enum {
  57         IA64_MCA_RENDEZ_CHECKIN_NOTDONE =       0x0,
  58         IA64_MCA_RENDEZ_CHECKIN_DONE    =       0x1
  59 };
  60
  61 /* Information maintained by the MC infrastructure */
  62 typedef struct ia64_mc_info_s {
  63         u64             imi_mca_handler;
  64         size_t          imi_mca_handler_size;
  65         u64             imi_monarch_init_handler;
  66         size_t          imi_monarch_init_handler_size;
  67         u64             imi_slave_init_handler;
  68         size_t          imi_slave_init_handler_size;
  69         u8              imi_rendez_checkin[NR_CPUS];
  70
  71 } ia64_mc_info_t;
  72
  73 /* Possible rendez states passed from SAL to OS during MCA
  74  * handoff
  75  */
  76 enum {
  77         IA64_MCA_RENDEZ_NOT_RQD         =       0x0,
  78         IA64_MCA_RENDEZ_DONE_WITHOUT_INIT       =       0x1,
  79         IA64_MCA_RENDEZ_DONE_WITH_INIT          =       0x2,
  80         IA64_MCA_RENDEZ_FAILURE                 =       -1
  81 };
  82
  83 typedef struct ia64_mca_sal_to_os_state_s {
  84         u64             imsto_os_gp;            /* GP of the os registered with the SAL */
  85         u64             imsto_pal_proc;         /* PAL_PROC entry point - physical addr */
  86         u64             imsto_sal_proc;         /* SAL_PROC entry point - physical addr */
  87         u64             imsto_sal_gp;           /* GP of the SAL - physical */
  88         u64             imsto_rendez_state;     /* Rendez state information */
  89         u64             imsto_sal_check_ra;     /* Return address in SAL_CHECK while going
  90                                                  * back to SAL from OS after MCA handling.
  91                                                  */
  92 } ia64_mca_sal_to_os_state_t;
  93
  94 enum {
  95         IA64_MCA_CORRECTED      =       0x0,    /* Error has been corrected by OS_MCA */
  96         IA64_MCA_WARM_BOOT      =       -1,     /* Warm boot of the system need from SAL */
  97         IA64_MCA_COLD_BOOT      =       -2,     /* Cold boot of the system need from SAL */
  98         IA64_MCA_HALT           =       -3      /* System to be halted by SAL */
  99 };
 100
 101 enum {
 102         IA64_MCA_SAME_CONTEXT   =       0x0,    /* SAL to return to same context */
 103         IA64_MCA_NEW_CONTEXT    =       -1      /* SAL to return to new context */
 104 };
 105
 106 #define MIN_STATE_AREA_SIZE     57
 107
 108 typedef struct ia64_mca_os_to_sal_state_s {
 109         u64             imots_os_status;        /*   OS status to SAL as to what happened
 110                                                  *   with the MCA handling.
 111                                                  */
 112         u64             imots_sal_gp;           /* GP of the SAL - physical */
 113         u64             imots_context;          /* 0 if return to same context
 114                                                    1 if return to new context */
 115         u64             *imots_new_min_state;   /* Pointer to structure containing
 116                                                  * new values of registers in the min state
 117                                                  * save area.
 118                                                  */
 119         u64             imots_sal_check_ra;     /* Return address in SAL_CHECK while going
 120                                                  * back to SAL from OS after MCA handling.
 121                                                  */
 122 } ia64_mca_os_to_sal_state_t;
 123
 124 typedef int (*prfunc_t)(const char * fmt, ...);
 125
 126 extern void ia64_mca_init(void);
 127 extern void ia64_os_mca_dispatch(void);
 128 extern void ia64_os_mca_dispatch_end(void);
 129 extern void ia64_mca_ucmc_handler(void);
 130 extern void ia64_monarch_init_handler(void);
 131 extern void ia64_slave_init_handler(void);
 132 extern void ia64_mca_rendez_int_handler(int,void *,struct pt_regs *);
 133 extern void ia64_mca_wakeup_int_handler(int,void *,struct pt_regs *);
 134 extern void ia64_mca_cmc_int_handler(int,void *,struct pt_regs *);
 135 extern void ia64_mca_cpe_int_handler(int,void *,struct pt_regs *);
 136 extern int  ia64_log_print(int,prfunc_t);
 137 extern void ia64_mca_cmc_vector_setup(void);
 138 extern int  ia64_mca_check_errors(void);
 139 extern u64  ia64_log_get(int, prfunc_t);
 140
 141 #define PLATFORM_CALL(fn, args) printk("Platform call TBD\n")
 142
 143 #define platform_mem_dev_err_print ia64_log_prt_oem_data
 144 #define platform_pci_bus_err_print ia64_log_prt_oem_data
 145 #define platform_pci_comp_err_print ia64_log_prt_oem_data
 146 #define platform_plat_specific_err_print ia64_log_prt_oem_data
 147 #define platform_host_ctlr_err_print ia64_log_prt_oem_data
 148 #define platform_plat_bus_err_print ia64_log_prt_oem_data
 149
 150 #undef  MCA_TEST
 151
 152 #undef IA64_MCA_DEBUG_INFO
 153
 154 #if defined(IA64_MCA_DEBUG_INFO)
 155 # define IA64_MCA_DEBUG(fmt...) printk(fmt)
 156 #else
 157 # define IA64_MCA_DEBUG(fmt...)
 158 #endif
 159 #endif /* !__ASSEMBLY__ */
 160 #endif /* _ASM_IA64_MCA_H */