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Diffstat (limited to 'include/asm-ia64/mca.h')
| -rw-r--r-- | include/asm-ia64/mca.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/include/asm-ia64/mca.h b/include/asm-ia64/mca.h new file mode 100644 index 00000000000..149ad011845 --- /dev/null +++ b/include/asm-ia64/mca.h @@ -0,0 +1,132 @@ +/* + * File: mca.h + * Purpose: Machine check handling specific defines + * + * Copyright (C) 1999, 2004 Silicon Graphics, Inc. + * Copyright (C) Vijay Chander (vijay@engr.sgi.com) + * Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com) + * Copyright (C) Russ Anderson (rja@sgi.com) + */ + +#ifndef _ASM_IA64_MCA_H +#define _ASM_IA64_MCA_H + +#define IA64_MCA_STACK_SIZE 8192 + +#if !defined(__ASSEMBLY__) + +#include <linux/interrupt.h> +#include <linux/types.h> + +#include <asm/param.h> +#include <asm/sal.h> +#include <asm/processor.h> +#include <asm/mca_asm.h> + +#define IA64_MCA_RENDEZ_TIMEOUT (20 * 1000) /* value in milliseconds - 20 seconds */ + +typedef struct ia64_fptr { + unsigned long fp; + unsigned long gp; +} ia64_fptr_t; + +typedef union cmcv_reg_u { + u64 cmcv_regval; + struct { + u64 cmcr_vector : 8; + u64 cmcr_reserved1 : 4; + u64 cmcr_ignored1 : 1; + u64 cmcr_reserved2 : 3; + u64 cmcr_mask : 1; + u64 cmcr_ignored2 : 47; + } cmcv_reg_s; + +} cmcv_reg_t; + +#define cmcv_mask cmcv_reg_s.cmcr_mask +#define cmcv_vector cmcv_reg_s.cmcr_vector + +enum { + IA64_MCA_RENDEZ_CHECKIN_NOTDONE = 0x0, + IA64_MCA_RENDEZ_CHECKIN_DONE = 0x1 +}; + +/* Information maintained by the MC infrastructure */ +typedef struct ia64_mc_info_s { + u64 imi_mca_handler; + size_t imi_mca_handler_size; + u64 imi_monarch_init_handler; + size_t imi_monarch_init_handler_size; + u64 imi_slave_init_handler; + size_t imi_slave_init_handler_size; + u8 imi_rendez_checkin[NR_CPUS]; + +} ia64_mc_info_t; + +typedef struct ia64_mca_sal_to_os_state_s { + u64 imsto_os_gp; /* GP of the os registered with the SAL */ + u64 imsto_pal_proc; /* PAL_PROC entry point - physical addr */ + u64 imsto_sal_proc; /* SAL_PROC entry point - physical addr */ + u64 imsto_sal_gp; /* GP of the SAL - physical */ + u64 imsto_rendez_state; /* Rendez state information */ + u64 imsto_sal_check_ra; /* Return address in SAL_CHECK while going + * back to SAL from OS after MCA handling. + */ + u64 pal_min_state; /* from PAL in r17 */ + u64 proc_state_param; /* from PAL in r18. See SDV 2:268 11.3.2.1 */ +} ia64_mca_sal_to_os_state_t; + +enum { + IA64_MCA_CORRECTED = 0x0, /* Error has been corrected by OS_MCA */ + IA64_MCA_WARM_BOOT = -1, /* Warm boot of the system need from SAL */ + IA64_MCA_COLD_BOOT = -2, /* Cold boot of the system need from SAL */ + IA64_MCA_HALT = -3 /* System to be halted by SAL */ +}; + +enum { + IA64_MCA_SAME_CONTEXT = 0x0, /* SAL to return to same context */ + IA64_MCA_NEW_CONTEXT = -1 /* SAL to return to new context */ +}; + +typedef struct ia64_mca_os_to_sal_state_s { + u64 imots_os_status; /* OS status to SAL as to what happened + * with the MCA handling. + */ + u64 imots_sal_gp; /* GP of the SAL - physical */ + u64 imots_context; /* 0 if return to same context + 1 if return to new context */ + u64 *imots_new_min_state; /* Pointer to structure containing + * new values of registers in the min state + * save area. + */ + u64 imots_sal_check_ra; /* Return address in SAL_CHECK while going + * back to SAL from OS after MCA handling. + */ +} ia64_mca_os_to_sal_state_t; + +/* Per-CPU MCA state that is too big for normal per-CPU variables. */ + +struct ia64_mca_cpu { + u64 stack[IA64_MCA_STACK_SIZE/8]; /* MCA memory-stack */ + u64 proc_state_dump[512]; + u64 stackframe[32]; + u64 rbstore[IA64_MCA_STACK_SIZE/8]; /* MCA reg.-backing store */ + u64 init_stack[KERNEL_STACK_SIZE/8]; +} __attribute__ ((aligned(16))); + +/* Array of physical addresses of each CPU's MCA area. */ +extern unsigned long __per_cpu_mca[NR_CPUS]; + +extern void ia64_mca_init(void); +extern void ia64_mca_cpu_init(void *); +extern void ia64_os_mca_dispatch(void); +extern void ia64_os_mca_dispatch_end(void); +extern void ia64_mca_ucmc_handler(void); +extern void ia64_monarch_init_handler(void); +extern void ia64_slave_init_handler(void); +extern void ia64_mca_cmc_vector_setup(void); +extern int ia64_reg_MCA_extension(void*); +extern void ia64_unreg_MCA_extension(void); + +#endif /* !__ASSEMBLY__ */ +#endif /* _ASM_IA64_MCA_H */ |