debuggers.hg

view xen/include/asm-ia64/linux/asm/mca.h @ 0:7d21f7218375

Exact replica of unstable on 051908 + README-this
author Mukesh Rathor
date Mon May 19 15:34:57 2008 -0700 (2008-05-19)
parents
children 1ee9236cc224
line source
1 /*
2 * File: mca.h
3 * Purpose: Machine check handling specific defines
4 *
5 * Copyright (C) 1999, 2004 Silicon Graphics, Inc.
6 * Copyright (C) Vijay Chander (vijay@engr.sgi.com)
7 * Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com)
8 * Copyright (C) Russ Anderson (rja@sgi.com)
9 */
11 #ifndef _ASM_IA64_MCA_H
12 #define _ASM_IA64_MCA_H
14 #define IA64_MCA_STACK_SIZE 8192
16 #if !defined(__ASSEMBLY__)
18 #include <linux/interrupt.h>
19 #include <linux/types.h>
21 #include <asm/param.h>
22 #include <asm/sal.h>
23 #include <asm/processor.h>
24 #include <asm/mca_asm.h>
26 #define IA64_MCA_RENDEZ_TIMEOUT (20 * 1000) /* value in milliseconds - 20 seconds */
28 typedef struct ia64_fptr {
29 unsigned long fp;
30 unsigned long gp;
31 } ia64_fptr_t;
33 typedef union cmcv_reg_u {
34 u64 cmcv_regval;
35 struct {
36 u64 cmcr_vector : 8;
37 u64 cmcr_reserved1 : 4;
38 u64 cmcr_ignored1 : 1;
39 u64 cmcr_reserved2 : 3;
40 u64 cmcr_mask : 1;
41 u64 cmcr_ignored2 : 47;
42 } cmcv_reg_s;
44 } cmcv_reg_t;
46 #define cmcv_mask cmcv_reg_s.cmcr_mask
47 #define cmcv_vector cmcv_reg_s.cmcr_vector
49 enum {
50 IA64_MCA_RENDEZ_CHECKIN_NOTDONE = 0x0,
51 IA64_MCA_RENDEZ_CHECKIN_DONE = 0x1
52 };
54 /* Information maintained by the MC infrastructure */
55 typedef struct ia64_mc_info_s {
56 u64 imi_mca_handler;
57 size_t imi_mca_handler_size;
58 u64 imi_monarch_init_handler;
59 size_t imi_monarch_init_handler_size;
60 u64 imi_slave_init_handler;
61 size_t imi_slave_init_handler_size;
62 u8 imi_rendez_checkin[NR_CPUS];
64 } ia64_mc_info_t;
66 typedef struct ia64_mca_sal_to_os_state_s {
67 u64 imsto_os_gp; /* GP of the os registered with the SAL */
68 u64 imsto_pal_proc; /* PAL_PROC entry point - physical addr */
69 u64 imsto_sal_proc; /* SAL_PROC entry point - physical addr */
70 u64 imsto_sal_gp; /* GP of the SAL - physical */
71 u64 imsto_rendez_state; /* Rendez state information */
72 u64 imsto_sal_check_ra; /* Return address in SAL_CHECK while going
73 * back to SAL from OS after MCA handling.
74 */
75 u64 pal_min_state; /* from PAL in r17 */
76 u64 proc_state_param; /* from PAL in r18. See SDV 2:268 11.3.2.1 */
77 } ia64_mca_sal_to_os_state_t;
79 enum {
80 IA64_MCA_CORRECTED = 0x0, /* Error has been corrected by OS_MCA */
81 IA64_MCA_WARM_BOOT = -1, /* Warm boot of the system need from SAL */
82 IA64_MCA_COLD_BOOT = -2, /* Cold boot of the system need from SAL */
83 IA64_MCA_HALT = -3 /* System to be halted by SAL */
84 };
86 enum {
87 IA64_MCA_SAME_CONTEXT = 0x0, /* SAL to return to same context */
88 IA64_MCA_NEW_CONTEXT = -1 /* SAL to return to new context */
89 };
91 typedef struct ia64_mca_os_to_sal_state_s {
92 u64 imots_os_status; /* OS status to SAL as to what happened
93 * with the MCA handling.
94 */
95 u64 imots_sal_gp; /* GP of the SAL - physical */
96 u64 imots_context; /* 0 if return to same context
97 1 if return to new context */
98 u64 *imots_new_min_state; /* Pointer to structure containing
99 * new values of registers in the min state
100 * save area.
101 */
102 u64 imots_sal_check_ra; /* Return address in SAL_CHECK while going
103 * back to SAL from OS after MCA handling.
104 */
105 } ia64_mca_os_to_sal_state_t;
107 /* Per-CPU MCA state that is too big for normal per-CPU variables. */
109 struct ia64_mca_cpu {
110 u64 stack[IA64_MCA_STACK_SIZE/8]; /* MCA memory-stack */
111 u64 proc_state_dump[512];
112 u64 stackframe[32];
113 u64 rbstore[IA64_MCA_STACK_SIZE/8]; /* MCA reg.-backing store */
114 u64 init_stack[KERNEL_STACK_SIZE/8];
115 } __attribute__ ((aligned(16)));
117 /* Array of physical addresses of each CPU's MCA area. */
118 extern unsigned long __per_cpu_mca[NR_CPUS];
120 extern void ia64_mca_init(void);
121 extern void ia64_mca_cpu_init(void *);
122 extern void ia64_os_mca_dispatch(void);
123 extern void ia64_os_mca_dispatch_end(void);
124 extern void ia64_mca_ucmc_handler(void);
125 extern void ia64_monarch_init_handler(void);
126 extern void ia64_slave_init_handler(void);
127 extern void ia64_mca_cmc_vector_setup(void);
128 extern int ia64_reg_MCA_extension(void*);
129 extern void ia64_unreg_MCA_extension(void);
131 #endif /* !__ASSEMBLY__ */
132 #endif /* _ASM_IA64_MCA_H */