diff options
Diffstat (limited to 'arch/mips/mm/c-octeon.c')
| -rw-r--r-- | arch/mips/mm/c-octeon.c | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c index 9f67553762d..6ec04daf423 100644 --- a/arch/mips/mm/c-octeon.c +++ b/arch/mips/mm/c-octeon.c @@ -286,10 +286,9 @@ void __cpuinit octeon_cache_init(void) board_cache_error_setup = octeon_cache_error_setup; } -/** +/* * Handle a cache error exception */ - static RAW_NOTIFIER_HEAD(co_cache_error_chain); int register_co_cache_error_notifier(struct notifier_block *nb) @@ -304,14 +303,39 @@ int unregister_co_cache_error_notifier(struct notifier_block *nb) } EXPORT_SYMBOL_GPL(unregister_co_cache_error_notifier); -static inline int co_cache_error_call_notifiers(unsigned long val) +static void co_cache_error_call_notifiers(unsigned long val) { - return raw_notifier_call_chain(&co_cache_error_chain, val, NULL); + int rv = raw_notifier_call_chain(&co_cache_error_chain, val, NULL); + if ((rv & ~NOTIFY_STOP_MASK) != NOTIFY_OK) { + u64 dcache_err; + unsigned long coreid = cvmx_get_core_num(); + u64 icache_err = read_octeon_c0_icacheerr(); + + if (val) { + dcache_err = cache_err_dcache[coreid]; + cache_err_dcache[coreid] = 0; + } else { + dcache_err = read_octeon_c0_dcacheerr(); + } + + pr_err("Core%lu: Cache error exception:\n", coreid); + pr_err("cp0_errorepc == %lx\n", read_c0_errorepc()); + if (icache_err & 1) { + pr_err("CacheErr (Icache) == %llx\n", + (unsigned long long)icache_err); + write_octeon_c0_icacheerr(0); + } + if (dcache_err & 1) { + pr_err("CacheErr (Dcache) == %llx\n", + (unsigned long long)dcache_err); + } + } } -/** +/* * Called when the the exception is recoverable */ + asmlinkage void cache_parity_error_octeon_recoverable(void) { co_cache_error_call_notifiers(0); @@ -319,11 +343,8 @@ asmlinkage void cache_parity_error_octeon_recoverable(void) /** * Called when the the exception is not recoverable - * - * The issue not that the cache error exception itself was non-recoverable - * but that due to nesting of exception may have lost some state so can't - * continue. */ + asmlinkage void cache_parity_error_octeon_non_recoverable(void) { co_cache_error_call_notifiers(1); |