diff options
Diffstat (limited to 'arch/ia64/kernel/mca_drv.c')
| -rw-r--r-- | arch/ia64/kernel/mca_drv.c | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c index 37c88eb5587..ca6666b51cc 100644 --- a/arch/ia64/kernel/mca_drv.c +++ b/arch/ia64/kernel/mca_drv.c @@ -62,6 +62,11 @@ typedef enum { ISOLATE_NONE } isolate_status_t; +typedef enum { + MCA_NOT_RECOVERED = 0, + MCA_RECOVERED = 1 +} recovery_status_t; + /* * This pool keeps pointers to the section part of SAL error record */ @@ -71,6 +76,18 @@ static struct { int max_idx; /* Maximum index of section pointer list pool */ } slidx_pool; +static int +fatal_mca(const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + vprintk(fmt, args); + va_end(args); + + return MCA_NOT_RECOVERED; +} + /** * mca_page_isolate - isolate a poisoned page in order not to use it later * @paddr: poisoned memory location @@ -424,7 +441,7 @@ recover_from_read_error(slidx_table_t *slidx, /* Is target address valid? */ if (!pbci->tv) - return 0; + return fatal_mca(KERN_ALERT "MCA: target address not valid\n"); /* * cpu read or memory-mapped io read @@ -442,7 +459,7 @@ recover_from_read_error(slidx_table_t *slidx, /* Is minstate valid? */ if (!peidx_bottom(peidx) || !(peidx_bottom(peidx)->valid.minstate)) - return 0; + return fatal_mca(KERN_ALERT "MCA: minstate not valid\n"); psr1 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_ipsr); psr2 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_xpsr); @@ -476,12 +493,13 @@ recover_from_read_error(slidx_table_t *slidx, psr2->bn = 1; psr2->i = 0; - return 1; + return MCA_RECOVERED; } } - return 0; + return fatal_mca(KERN_ALERT "MCA: kernel context not recovered," + " iip 0x%lx\n", pmsa->pmsa_iip); } /** @@ -567,13 +585,13 @@ recover_from_processor_error(int platform, slidx_table_t *slidx, * The machine check is corrected. */ if (psp->cm == 1) - return 1; + return MCA_RECOVERED; /* * The error was not contained. Software must be reset. */ if (psp->us || psp->ci == 0) - return 0; + return fatal_mca(KERN_ALERT "MCA: error not contained\n"); /* * The cache check and bus check bits have four possible states @@ -584,20 +602,22 @@ recover_from_processor_error(int platform, slidx_table_t *slidx, * 1 1 Memory error, attempt recovery */ if (psp->bc == 0 || pbci == NULL) - return 0; + return fatal_mca(KERN_ALERT "MCA: No bus check\n"); /* * Sorry, we cannot handle so many. */ if (peidx_bus_check_num(peidx) > 1) - return 0; + return fatal_mca(KERN_ALERT "MCA: Too many bus checks\n"); /* * Well, here is only one bus error. */ - if (pbci->ib || pbci->cc) - return 0; + if (pbci->ib) + return fatal_mca(KERN_ALERT "MCA: Internal Bus error\n"); + if (pbci->cc) + return fatal_mca(KERN_ALERT "MCA: Cache-cache error\n"); if (pbci->eb && pbci->bsi > 0) - return 0; + return fatal_mca(KERN_ALERT "MCA: External bus check fatal status\n"); /* * This is a local MCA and estimated as recoverble external bus error. @@ -609,7 +629,7 @@ recover_from_processor_error(int platform, slidx_table_t *slidx, /* * On account of strange SAL error record, we cannot recover. */ - return 0; + return fatal_mca(KERN_ALERT "MCA: Strange SAL record\n"); } /** @@ -638,12 +658,10 @@ mca_try_to_recover(void *rec, struct ia64_sal_os_state *sos) /* Now, OS can recover when there is one processor error section */ if (n_proc_err > 1) - return 0; - else if (n_proc_err == 0) { + return fatal_mca(KERN_ALERT "MCA: Too Many Errors\n"); + else if (n_proc_err == 0) /* Weird SAL record ... We need not to recover */ - - return 1; - } + return fatal_mca(KERN_ALERT "MCA: Weird SAL record\n"); /* Make index of processor error section */ mca_make_peidx((sal_log_processor_info_t*) @@ -654,7 +672,7 @@ mca_try_to_recover(void *rec, struct ia64_sal_os_state *sos) /* Check whether MCA is global or not */ if (is_mca_global(&peidx, &pbci, sos)) - return 0; + return fatal_mca(KERN_ALERT "MCA: global MCA\n"); /* Try to recover a processor error */ return recover_from_processor_error(platform_err, &slidx, &peidx, |