diff options
Diffstat (limited to 'arch/sparc64/kernel/traps.c')
| -rw-r--r-- | arch/sparc64/kernel/traps.c | 2601 |
1 files changed, 0 insertions, 2601 deletions
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c deleted file mode 100644 index 81ccd22e78d..00000000000 --- a/arch/sparc64/kernel/traps.c +++ /dev/null @@ -1,2601 +0,0 @@ -/* arch/sparc64/kernel/traps.c - * - * Copyright (C) 1995,1997,2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1997,1999,2000 Jakub Jelinek (jakub@redhat.com) - */ - -/* - * I like traps on v9, :)))) - */ - -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/linkage.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/smp.h> -#include <linux/mm.h> -#include <linux/init.h> -#include <linux/kdebug.h> - -#include <asm/smp.h> -#include <asm/delay.h> -#include <asm/system.h> -#include <asm/ptrace.h> -#include <asm/oplib.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/unistd.h> -#include <asm/uaccess.h> -#include <asm/fpumacro.h> -#include <asm/lsu.h> -#include <asm/dcu.h> -#include <asm/estate.h> -#include <asm/chafsr.h> -#include <asm/sfafsr.h> -#include <asm/psrcompat.h> -#include <asm/processor.h> -#include <asm/timer.h> -#include <asm/head.h> -#include <asm/prom.h> -#include <asm/memctrl.h> - -#include "entry.h" -#include "kstack.h" - -/* When an irrecoverable trap occurs at tl > 0, the trap entry - * code logs the trap state registers at every level in the trap - * stack. It is found at (pt_regs + sizeof(pt_regs)) and the layout - * is as follows: - */ -struct tl1_traplog { - struct { - unsigned long tstate; - unsigned long tpc; - unsigned long tnpc; - unsigned long tt; - } trapstack[4]; - unsigned long tl; -}; - -static void dump_tl1_traplog(struct tl1_traplog *p) -{ - int i, limit; - - printk(KERN_EMERG "TRAPLOG: Error at trap level 0x%lx, " - "dumping track stack.\n", p->tl); - - limit = (tlb_type == hypervisor) ? 2 : 4; - for (i = 0; i < limit; i++) { - printk(KERN_EMERG - "TRAPLOG: Trap level %d TSTATE[%016lx] TPC[%016lx] " - "TNPC[%016lx] TT[%lx]\n", - i + 1, - p->trapstack[i].tstate, p->trapstack[i].tpc, - p->trapstack[i].tnpc, p->trapstack[i].tt); - printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc); - } -} - -void bad_trap(struct pt_regs *regs, long lvl) -{ - char buffer[32]; - siginfo_t info; - - if (notify_die(DIE_TRAP, "bad trap", regs, - 0, lvl, SIGTRAP) == NOTIFY_STOP) - return; - - if (lvl < 0x100) { - sprintf(buffer, "Bad hw trap %lx at tl0\n", lvl); - die_if_kernel(buffer, regs); - } - - lvl -= 0x100; - if (regs->tstate & TSTATE_PRIV) { - sprintf(buffer, "Kernel bad sw trap %lx", lvl); - die_if_kernel(buffer, regs); - } - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLTRP; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = lvl; - force_sig_info(SIGILL, &info, current); -} - -void bad_trap_tl1(struct pt_regs *regs, long lvl) -{ - char buffer[32]; - - if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs, - 0, lvl, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - sprintf (buffer, "Bad trap %lx at tl>0", lvl); - die_if_kernel (buffer, regs); -} - -#ifdef CONFIG_DEBUG_BUGVERBOSE -void do_BUG(const char *file, int line) -{ - bust_spinlocks(1); - printk("kernel BUG at %s:%d!\n", file, line); -} -#endif - -static DEFINE_SPINLOCK(dimm_handler_lock); -static dimm_printer_t dimm_handler; - -static int sprintf_dimm(int synd_code, unsigned long paddr, char *buf, int buflen) -{ - unsigned long flags; - int ret = -ENODEV; - - spin_lock_irqsave(&dimm_handler_lock, flags); - if (dimm_handler) { - ret = dimm_handler(synd_code, paddr, buf, buflen); - } else if (tlb_type == spitfire) { - if (prom_getunumber(synd_code, paddr, buf, buflen) == -1) - ret = -EINVAL; - else - ret = 0; - } else - ret = -ENODEV; - spin_unlock_irqrestore(&dimm_handler_lock, flags); - - return ret; -} - -int register_dimm_printer(dimm_printer_t func) -{ - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&dimm_handler_lock, flags); - if (!dimm_handler) - dimm_handler = func; - else - ret = -EEXIST; - spin_unlock_irqrestore(&dimm_handler_lock, flags); - - return ret; -} -EXPORT_SYMBOL_GPL(register_dimm_printer); - -void unregister_dimm_printer(dimm_printer_t func) -{ - unsigned long flags; - - spin_lock_irqsave(&dimm_handler_lock, flags); - if (dimm_handler == func) - dimm_handler = NULL; - spin_unlock_irqrestore(&dimm_handler_lock, flags); -} -EXPORT_SYMBOL_GPL(unregister_dimm_printer); - -void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "instruction access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - printk("spitfire_insn_access_exception: SFSR[%016lx] " - "SFAR[%016lx], going.\n", sfsr, sfar); - die_if_kernel("Iax", regs); - } - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void spitfire_insn_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - spitfire_insn_access_exception(regs, sfsr, sfar); -} - -void sun4v_insn_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - unsigned short type = (type_ctx >> 16); - unsigned short ctx = (type_ctx & 0xffff); - siginfo_t info; - - if (notify_die(DIE_TRAP, "instruction access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - printk("sun4v_insn_access_exception: ADDR[%016lx] " - "CTX[%04x] TYPE[%04x], going.\n", - addr, ctx, type); - die_if_kernel("Iax", regs); - } - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *) addr; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - sun4v_insn_access_exception(regs, addr, type_ctx); -} - -void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "data access exception", regs, - 0, 0x30, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - /* Test if this comes from uaccess places. */ - const struct exception_table_entry *entry; - - entry = search_exception_tables(regs->tpc); - if (entry) { - /* Ouch, somebody is trying VM hole tricks on us... */ -#ifdef DEBUG_EXCEPTIONS - printk("Exception: PC<%016lx> faddr<UNKNOWN>\n", regs->tpc); - printk("EX_TABLE: insn<%016lx> fixup<%016lx>\n", - regs->tpc, entry->fixup); -#endif - regs->tpc = entry->fixup; - regs->tnpc = regs->tpc + 4; - return; - } - /* Shit... */ - printk("spitfire_data_access_exception: SFSR[%016lx] " - "SFAR[%016lx], going.\n", sfsr, sfar); - die_if_kernel("Dax", regs); - } - - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *)sfar; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void spitfire_data_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs, - 0, 0x30, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - spitfire_data_access_exception(regs, sfsr, sfar); -} - -void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - unsigned short type = (type_ctx >> 16); - unsigned short ctx = (type_ctx & 0xffff); - siginfo_t info; - - if (notify_die(DIE_TRAP, "data access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - printk("sun4v_data_access_exception: ADDR[%016lx] " - "CTX[%04x] TYPE[%04x], going.\n", - addr, ctx, type); - die_if_kernel("Dax", regs); - } - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *) addr; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void sun4v_data_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - sun4v_data_access_exception(regs, addr, type_ctx); -} - -#ifdef CONFIG_PCI -#include "pci_impl.h" -#endif - -/* When access exceptions happen, we must do this. */ -static void spitfire_clean_and_reenable_l1_caches(void) -{ - unsigned long va; - - if (tlb_type != spitfire) - BUG(); - - /* Clean 'em. */ - for (va = 0; va < (PAGE_SIZE << 1); va += 32) { - spitfire_put_icache_tag(va, 0x0); - spitfire_put_dcache_tag(va, 0x0); - } - - /* Re-enable in LSU. */ - __asm__ __volatile__("flush %%g6\n\t" - "membar #Sync\n\t" - "stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (LSU_CONTROL_IC | LSU_CONTROL_DC | - LSU_CONTROL_IM | LSU_CONTROL_DM), - "i" (ASI_LSU_CONTROL) - : "memory"); -} - -static void spitfire_enable_estate_errors(void) -{ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (ESTATE_ERR_ALL), - "i" (ASI_ESTATE_ERROR_EN)); -} - -static char ecc_syndrome_table[] = { - 0x4c, 0x40, 0x41, 0x48, 0x42, 0x48, 0x48, 0x49, - 0x43, 0x48, 0x48, 0x49, 0x48, 0x49, 0x49, 0x4a, - 0x44, 0x48, 0x48, 0x20, 0x48, 0x39, 0x4b, 0x48, - 0x48, 0x25, 0x31, 0x48, 0x28, 0x48, 0x48, 0x2c, - 0x45, 0x48, 0x48, 0x21, 0x48, 0x3d, 0x04, 0x48, - 0x48, 0x4b, 0x35, 0x48, 0x2d, 0x48, 0x48, 0x29, - 0x48, 0x00, 0x01, 0x48, 0x0a, 0x48, 0x48, 0x4b, - 0x0f, 0x48, 0x48, 0x4b, 0x48, 0x49, 0x49, 0x48, - 0x46, 0x48, 0x48, 0x2a, 0x48, 0x3b, 0x27, 0x48, - 0x48, 0x4b, 0x33, 0x48, 0x22, 0x48, 0x48, 0x2e, - 0x48, 0x19, 0x1d, 0x48, 0x1b, 0x4a, 0x48, 0x4b, - 0x1f, 0x48, 0x4a, 0x4b, 0x48, 0x4b, 0x4b, 0x48, - 0x48, 0x4b, 0x24, 0x48, 0x07, 0x48, 0x48, 0x36, - 0x4b, 0x48, 0x48, 0x3e, 0x48, 0x30, 0x38, 0x48, - 0x49, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x16, 0x48, - 0x48, 0x12, 0x4b, 0x48, 0x49, 0x48, 0x48, 0x4b, - 0x47, 0x48, 0x48, 0x2f, 0x48, 0x3f, 0x4b, 0x48, - 0x48, 0x06, 0x37, 0x48, 0x23, 0x48, 0x48, 0x2b, - 0x48, 0x05, 0x4b, 0x48, 0x4b, 0x48, 0x48, 0x32, - 0x26, 0x48, 0x48, 0x3a, 0x48, 0x34, 0x3c, 0x48, - 0x48, 0x11, 0x15, 0x48, 0x13, 0x4a, 0x48, 0x4b, - 0x17, 0x48, 0x4a, 0x4b, 0x48, 0x4b, 0x4b, 0x48, - 0x49, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x1e, 0x48, - 0x48, 0x1a, 0x4b, 0x48, 0x49, 0x48, 0x48, 0x4b, - 0x48, 0x08, 0x0d, 0x48, 0x02, 0x48, 0x48, 0x49, - 0x03, 0x48, 0x48, 0x49, 0x48, 0x4b, 0x4b, 0x48, - 0x49, 0x48, 0x48, 0x49, 0x48, 0x4b, 0x10, 0x48, - 0x48, 0x14, 0x4b, 0x48, 0x4b, 0x48, 0x48, 0x4b, - 0x49, 0x48, 0x48, 0x49, 0x48, 0x4b, 0x18, 0x48, - 0x48, 0x1c, 0x4b, 0x48, 0x4b, 0x48, 0x48, 0x4b, - 0x4a, 0x0c, 0x09, 0x48, 0x0e, 0x48, 0x48, 0x4b, - 0x0b, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x4b, 0x4a -}; - -static char *syndrome_unknown = "<Unknown>"; - -static void spitfire_log_udb_syndrome(unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long bit) -{ - unsigned short scode; - char memmod_str[64], *p; - - if (udbl & bit) { - scode = ecc_syndrome_table[udbl & 0xff]; - if (sprintf_dimm(scode, afar, memmod_str, sizeof(memmod_str)) < 0) - p = syndrome_unknown; - else - p = memmod_str; - printk(KERN_WARNING "CPU[%d]: UDBL Syndrome[%x] " - "Memory Module \"%s\"\n", - smp_processor_id(), scode, p); - } - - if (udbh & bit) { - scode = ecc_syndrome_table[udbh & 0xff]; - if (sprintf_dimm(scode, afar, memmod_str, sizeof(memmod_str)) < 0) - p = syndrome_unknown; - else - p = memmod_str; - printk(KERN_WARNING "CPU[%d]: UDBH Syndrome[%x] " - "Memory Module \"%s\"\n", - smp_processor_id(), scode, p); - } - -} - -static void spitfire_cee_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, int tl1, struct pt_regs *regs) -{ - - printk(KERN_WARNING "CPU[%d]: Correctable ECC Error " - "AFSR[%lx] AFAR[%016lx] UDBL[%lx] UDBH[%lx] TL>1[%d]\n", - smp_processor_id(), afsr, afar, udbl, udbh, tl1); - - spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_CE); - - /* We always log it, even if someone is listening for this - * trap. - */ - notify_die(DIE_TRAP, "Correctable ECC Error", regs, - 0, TRAP_TYPE_CEE, SIGTRAP); - - /* The Correctable ECC Error trap does not disable I/D caches. So - * we only have to restore the ESTATE Error Enable register. - */ - spitfire_enable_estate_errors(); -} - -static void spitfire_ue_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long tt, int tl1, struct pt_regs *regs) -{ - siginfo_t info; - - printk(KERN_WARNING "CPU[%d]: Uncorrectable Error AFSR[%lx] " - "AFAR[%lx] UDBL[%lx] UDBH[%ld] TT[%lx] TL>1[%d]\n", - smp_processor_id(), afsr, afar, udbl, udbh, tt, tl1); - - /* XXX add more human friendly logging of the error status - * XXX as is implemented for cheetah - */ - - spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_UE); - - /* We always log it, even if someone is listening for this - * trap. - */ - notify_die(DIE_TRAP, "Uncorrectable Error", regs, - 0, tt, SIGTRAP); - - if (regs->tstate & TSTATE_PRIV) { - if (tl1) - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("UE", regs); - } - - /* XXX need more intelligent processing here, such as is implemented - * XXX for cheetah errors, in fact if the E-cache still holds the - * XXX line with bad parity this will loop - */ - - spitfire_clean_and_reenable_l1_caches(); - spitfire_enable_estate_errors(); - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_OBJERR; - info.si_addr = (void *)0; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void spitfire_access_error(struct pt_regs *regs, unsigned long status_encoded, unsigned long afar) -{ - unsigned long afsr, tt, udbh, udbl; - int tl1; - - afsr = (status_encoded & SFSTAT_AFSR_MASK) >> SFSTAT_AFSR_SHIFT; - tt = (status_encoded & SFSTAT_TRAP_TYPE) >> SFSTAT_TRAP_TYPE_SHIFT; - tl1 = (status_encoded & SFSTAT_TL_GT_ONE) ? 1 : 0; - udbl = (status_encoded & SFSTAT_UDBL_MASK) >> SFSTAT_UDBL_SHIFT; - udbh = (status_encoded & SFSTAT_UDBH_MASK) >> SFSTAT_UDBH_SHIFT; - -#ifdef CONFIG_PCI - if (tt == TRAP_TYPE_DAE && - pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) { - spitfire_clean_and_reenable_l1_caches(); - spitfire_enable_estate_errors(); - - pci_poke_faulted = 1; - regs->tnpc = regs->tpc + 4; - return; - } -#endif - - if (afsr & SFAFSR_UE) - spitfire_ue_log(afsr, afar, udbh, udbl, tt, tl1, regs); - - if (tt == TRAP_TYPE_CEE) { - /* Handle the case where we took a CEE trap, but ACK'd - * only the UE state in the UDB error registers. - */ - if (afsr & SFAFSR_UE) { - if (udbh & UDBE_CE) { - __asm__ __volatile__( - "stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (udbh & UDBE_CE), - "r" (0x0), "i" (ASI_UDB_ERROR_W)); - } - if (udbl & UDBE_CE) { - __asm__ __volatile__( - "stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (udbl & UDBE_CE), - "r" (0x18), "i" (ASI_UDB_ERROR_W)); - } - } - - spitfire_cee_log(afsr, afar, udbh, udbl, tl1, regs); - } -} - -int cheetah_pcache_forced_on; - -void cheetah_enable_pcache(void) -{ - unsigned long dcr; - - printk("CHEETAH: Enabling P-Cache on cpu %d.\n", - smp_processor_id()); - - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=r" (dcr) - : "i" (ASI_DCU_CONTROL_REG)); - dcr |= (DCU_PE | DCU_HPE | DCU_SPE | DCU_SL); - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (dcr), "i" (ASI_DCU_CONTROL_REG)); -} - -/* Cheetah error trap handling. */ -static unsigned long ecache_flush_physbase; -static unsigned long ecache_flush_linesize; -static unsigned long ecache_flush_size; - -/* This table is ordered in priority of errors and matches the - * AFAR overwrite policy as well. - */ - -struct afsr_error_table { - unsigned long mask; - const char *name; -}; - -static const char CHAFSR_PERR_msg[] = - "System interface protocol error"; -static const char CHAFSR_IERR_msg[] = - "Internal processor error"; -static const char CHAFSR_ISAP_msg[] = - "System request parity error on incoming addresss"; -static const char CHAFSR_UCU_msg[] = - "Uncorrectable E-cache ECC error for ifetch/data"; -static const char CHAFSR_UCC_msg[] = - "SW Correctable E-cache ECC error for ifetch/data"; -static const char CHAFSR_UE_msg[] = - "Uncorrectable system bus data ECC error for read"; -static const char CHAFSR_EDU_msg[] = - "Uncorrectable E-cache ECC error for stmerge/blkld"; -static const char CHAFSR_EMU_msg[] = - "Uncorrectable system bus MTAG error"; -static const char CHAFSR_WDU_msg[] = - "Uncorrectable E-cache ECC error for writeback"; -static const char CHAFSR_CPU_msg[] = - "Uncorrectable ECC error for copyout"; -static const char CHAFSR_CE_msg[] = - "HW corrected system bus data ECC error for read"; -static const char CHAFSR_EDC_msg[] = - "HW corrected E-cache ECC error for stmerge/blkld"; -static const char CHAFSR_EMC_msg[] = - "HW corrected system bus MTAG ECC error"; -static const char CHAFSR_WDC_msg[] = - "HW corrected E-cache ECC error for writeback"; -static const char CHAFSR_CPC_msg[] = - "HW corrected ECC error for copyout"; -static const char CHAFSR_TO_msg[] = - "Unmapped error from system bus"; -static const char CHAFSR_BERR_msg[] = - "Bus error response from system bus"; -static const char CHAFSR_IVC_msg[] = - "HW corrected system bus data ECC error for ivec read"; -static const char CHAFSR_IVU_msg[] = - "Uncorrectable system bus data ECC error for ivec read"; -static struct afsr_error_table __cheetah_error_table[] = { - { CHAFSR_PERR, CHAFSR_PERR_msg }, - { CHAFSR_IERR, CHAFSR_IERR_msg }, - { CHAFSR_ISAP, CHAFSR_ISAP_msg }, - { CHAFSR_UCU, CHAFSR_UCU_msg }, - { CHAFSR_UCC, CHAFSR_UCC_msg }, - { CHAFSR_UE, CHAFSR_UE_msg }, - { CHAFSR_EDU, CHAFSR_EDU_msg }, - { CHAFSR_EMU, CHAFSR_EMU_msg }, - { CHAFSR_WDU, CHAFSR_WDU_msg }, - { CHAFSR_CPU, CHAFSR_CPU_msg }, - { CHAFSR_CE, CHAFSR_CE_msg }, - { CHAFSR_EDC, CHAFSR_EDC_msg }, - { CHAFSR_EMC, CHAFSR_EMC_msg }, - { CHAFSR_WDC, CHAFSR_WDC_msg }, - { CHAFSR_CPC, CHAFSR_CPC_msg }, - { CHAFSR_TO, CHAFSR_TO_msg }, - { CHAFSR_BERR, CHAFSR_BERR_msg }, - /* These two do not update the AFAR. */ - { CHAFSR_IVC, CHAFSR_IVC_msg }, - { CHAFSR_IVU, CHAFSR_IVU_msg }, - { 0, NULL }, -}; -static const char CHPAFSR_DTO_msg[] = - "System bus unmapped error for prefetch/storequeue-read"; -static const char CHPAFSR_DBERR_msg[] = - "System bus error for prefetch/storequeue-read"; -static const char CHPAFSR_THCE_msg[] = - "Hardware corrected E-cache Tag ECC error"; -static const char CHPAFSR_TSCE_msg[] = - "SW handled correctable E-cache Tag ECC error"; -static const char CHPAFSR_TUE_msg[] = - "Uncorrectable E-cache Tag ECC error"; -static const char CHPAFSR_DUE_msg[] = - "System bus uncorrectable data ECC error due to prefetch/store-fill"; -static struct afsr_error_table __cheetah_plus_error_table[] = { - { CHAFSR_PERR, CHAFSR_PERR_msg }, - { CHAFSR_IERR, CHAFSR_IERR_msg }, - { CHAFSR_ISAP, CHAFSR_ISAP_msg }, - { CHAFSR_UCU, CHAFSR_UCU_msg }, - { CHAFSR_UCC, CHAFSR_UCC_msg }, - { CHAFSR_UE, CHAFSR_UE_msg }, - { CHAFSR_EDU, CHAFSR_EDU_msg }, - { CHAFSR_EMU, CHAFSR_EMU_msg }, - { CHAFSR_WDU, CHAFSR_WDU_msg }, - { CHAFSR_CPU, CHAFSR_CPU_msg }, - { CHAFSR_CE, CHAFSR_CE_msg }, - { CHAFSR_EDC, CHAFSR_EDC_msg }, - { CHAFSR_EMC, CHAFSR_EMC_msg }, - { CHAFSR_WDC, CHAFSR_WDC_msg }, - { CHAFSR_CPC, CHAFSR_CPC_msg }, - { CHAFSR_TO, CHAFSR_TO_msg }, - { CHAFSR_BERR, CHAFSR_BERR_msg }, - { CHPAFSR_DTO, CHPAFSR_DTO_msg }, - { CHPAFSR_DBERR, CHPAFSR_DBERR_msg }, - { CHPAFSR_THCE, CHPAFSR_THCE_msg }, - { CHPAFSR_TSCE, CHPAFSR_TSCE_msg }, - { CHPAFSR_TUE, CHPAFSR_TUE_msg }, - { CHPAFSR_DUE, CHPAFSR_DUE_msg }, - /* These two do not update the AFAR. */ - { CHAFSR_IVC, CHAFSR_IVC_msg }, - { CHAFSR_IVU, CHAFSR_IVU_msg }, - { 0, NULL }, -}; -static const char JPAFSR_JETO_msg[] = - "System interface protocol error, hw timeout caused"; -static const char JPAFSR_SCE_msg[] = - "Parity error on system snoop results"; -static const char JPAFSR_JEIC_msg[] = - "System interface protocol error, illegal command detected"; -static const char JPAFSR_JEIT_msg[] = - "System interface protocol error, illegal ADTYPE detected"; -static const char JPAFSR_OM_msg[] = - "Out of range memory error has occurred"; -static const char JPAFSR_ETP_msg[] = - "Parity error on L2 cache tag SRAM"; -static const char JPAFSR_UMS_msg[] = - "Error due to unsupported store"; -static const char JPAFSR_RUE_msg[] = - "Uncorrectable ECC error from remote cache/memory"; -static const char JPAFSR_RCE_msg[] = - "Correctable ECC error from remote cache/memory"; -static const char JPAFSR_BP_msg[] = - "JBUS parity error on returned read data"; -static const char JPAFSR_WBP_msg[] = - "JBUS parity error on data for writeback or block store"; -static const char JPAFSR_FRC_msg[] = - "Foreign read to DRAM incurring correctable ECC error"; -static const char JPAFSR_FRU_msg[] = - "Foreign read to DRAM incurring uncorrectable ECC error"; -static struct afsr_error_table __jalapeno_error_table[] = { - { JPAFSR_JETO, JPAFSR_JETO_msg }, - { JPAFSR_SCE, JPAFSR_SCE_msg }, - { JPAFSR_JEIC, JPAFSR_JEIC_msg }, - { JPAFSR_JEIT, JPAFSR_JEIT_msg }, - { CHAFSR_PERR, CHAFSR_PERR_msg }, - { CHAFSR_IERR, CHAFSR_IERR_msg }, - { CHAFSR_ISAP, CHAFSR_ISAP_msg }, - { CHAFSR_UCU, CHAFSR_UCU_msg }, - { CHAFSR_UCC, CHAFSR_UCC_msg }, - { CHAFSR_UE, CHAFSR_UE_msg }, - { CHAFSR_EDU, CHAFSR_EDU_msg }, - { JPAFSR_OM, JPAFSR_OM_msg }, - { CHAFSR_WDU, CHAFSR_WDU_msg }, - { CHAFSR_CPU, CHAFSR_CPU_msg }, - { CHAFSR_CE, CHAFSR_CE_msg }, - { CHAFSR_EDC, CHAFSR_EDC_msg }, - { JPAFSR_ETP, JPAFSR_ETP_msg }, - { CHAFSR_WDC, CHAFSR_WDC_msg }, - { CHAFSR_CPC, CHAFSR_CPC_msg }, - { CHAFSR_TO, CHAFSR_TO_msg }, - { CHAFSR_BERR, CHAFSR_BERR_msg }, - { JPAFSR_UMS, JPAFSR_UMS_msg }, - { JPAFSR_RUE, JPAFSR_RUE_msg }, - { JPAFSR_RCE, JPAFSR_RCE_msg }, - { JPAFSR_BP, JPAFSR_BP_msg }, - { JPAFSR_WBP, JPAFSR_WBP_msg }, - { JPAFSR_FRC, JPAFSR_FRC_msg }, - { JPAFSR_FRU, JPAFSR_FRU_msg }, - /* These two do not update the AFAR. */ - { CHAFSR_IVU, CHAFSR_IVU_msg }, - { 0, NULL }, -}; -static struct afsr_error_table *cheetah_error_table; -static unsigned long cheetah_afsr_errors; - -struct cheetah_err_info *cheetah_error_log; - -static inline struct cheetah_err_info *cheetah_get_error_log(unsigned long afsr) -{ - struct cheetah_err_info *p; - int cpu = smp_processor_id(); - - if (!cheetah_error_log) - return NULL; - - p = cheetah_error_log + (cpu * 2); - if ((afsr & CHAFSR_TL1) != 0UL) - p++; - - return p; -} - -extern unsigned int tl0_icpe[], tl1_icpe[]; -extern unsigned int tl0_dcpe[], tl1_dcpe[]; -extern unsigned int tl0_fecc[], tl1_fecc[]; -extern unsigned int tl0_cee[], tl1_cee[]; -extern unsigned int tl0_iae[], tl1_iae[]; -extern unsigned int tl0_dae[], tl1_dae[]; -extern unsigned int cheetah_plus_icpe_trap_vector[], cheetah_plus_icpe_trap_vector_tl1[]; -extern unsigned int cheetah_plus_dcpe_trap_vector[], cheetah_plus_dcpe_trap_vector_tl1[]; -extern unsigned int cheetah_fecc_trap_vector[], cheetah_fecc_trap_vector_tl1[]; -extern unsigned int cheetah_cee_trap_vector[], cheetah_cee_trap_vector_tl1[]; -extern unsigned int cheetah_deferred_trap_vector[], cheetah_deferred_trap_vector_tl1[]; - -void __init cheetah_ecache_flush_init(void) -{ - unsigned long largest_size, smallest_linesize, order, ver; - int i, sz; - - /* Scan all cpu device tree nodes, note two values: - * 1) largest E-cache size - * 2) smallest E-cache line size - */ - largest_size = 0UL; - smallest_linesize = ~0UL; - - for (i = 0; i < NR_CPUS; i++) { - unsigned long val; - - val = cpu_data(i).ecache_size; - if (!val) - continue; - - if (val > largest_size) - largest_size = val; - - val = cpu_data(i).ecache_line_size; - if (val < smallest_linesize) - smallest_linesize = val; - - } - - if (largest_size == 0UL || smallest_linesize == ~0UL) { - prom_printf("cheetah_ecache_flush_init: Cannot probe cpu E-cache " - "parameters.\n"); - prom_halt(); - } - - ecache_flush_size = (2 * largest_size); - ecache_flush_linesize = smallest_linesize; - - ecache_flush_physbase = find_ecache_flush_span(ecache_flush_size); - - if (ecache_flush_physbase == ~0UL) { - prom_printf("cheetah_ecache_flush_init: Cannot find %d byte " - "contiguous physical memory.\n", - ecache_flush_size); - prom_halt(); - } - - /* Now allocate error trap reporting scoreboard. */ - sz = NR_CPUS * (2 * sizeof(struct cheetah_err_info)); - for (order = 0; order < MAX_ORDER; order++) { - if ((PAGE_SIZE << order) >= sz) - break; - } - cheetah_error_log = (struct cheetah_err_info *) - __get_free_pages(GFP_KERNEL, order); - if (!cheetah_error_log) { - prom_printf("cheetah_ecache_flush_init: Failed to allocate " - "error logging scoreboard (%d bytes).\n", sz); - prom_halt(); - } - memset(cheetah_error_log, 0, PAGE_SIZE << order); - - /* Mark all AFSRs as invalid so that the trap handler will - * log new new information there. - */ - for (i = 0; i < 2 * NR_CPUS; i++) - cheetah_error_log[i].afsr = CHAFSR_INVALID; - - __asm__ ("rdpr %%ver, %0" : "=r" (ver)); - if ((ver >> 32) == __JALAPENO_ID || - (ver >> 32) == __SERRANO_ID) { - cheetah_error_table = &__jalapeno_error_table[0]; - cheetah_afsr_errors = JPAFSR_ERRORS; - } else if ((ver >> 32) == 0x003e0015) { - cheetah_error_table = &__cheetah_plus_error_table[0]; - cheetah_afsr_errors = CHPAFSR_ERRORS; - } else { - cheetah_error_table = &__cheetah_error_table[0]; - cheetah_afsr_errors = CHAFSR_ERRORS; - } - - /* Now patch trap tables. */ - memcpy(tl0_fecc, cheetah_fecc_trap_vector, (8 * 4)); - memcpy(tl1_fecc, cheetah_fecc_trap_vector_tl1, (8 * 4)); - memcpy(tl0_cee, cheetah_cee_trap_vector, (8 * 4)); - memcpy(tl1_cee, cheetah_cee_trap_vector_tl1, (8 * 4)); - memcpy(tl0_iae, cheetah_deferred_trap_vector, (8 * 4)); - memcpy(tl1_iae, cheetah_deferred_trap_vector_tl1, (8 * 4)); - memcpy(tl0_dae, cheetah_deferred_trap_vector, (8 * 4)); - memcpy(tl1_dae, cheetah_deferred_trap_vector_tl1, (8 * 4)); - if (tlb_type == cheetah_plus) { - memcpy(tl0_dcpe, cheetah_plus_dcpe_trap_vector, (8 * 4)); - memcpy(tl1_dcpe, cheetah_plus_dcpe_trap_vector_tl1, (8 * 4)); - memcpy(tl0_icpe, cheetah_plus_icpe_trap_vector, (8 * 4)); - memcpy(tl1_icpe, cheetah_plus_icpe_trap_vector_tl1, (8 * 4)); - } - flushi(PAGE_OFFSET); -} - -static void cheetah_flush_ecache(void) -{ - unsigned long flush_base = ecache_flush_physbase; - unsigned long flush_linesize = ecache_flush_linesize; - unsigned long flush_size = ecache_flush_size; - - __asm__ __volatile__("1: subcc %0, %4, %0\n\t" - " bne,pt %%xcc, 1b\n\t" - " ldxa [%2 + %0] %3, %%g0\n\t" - : "=&r" (flush_size) - : "0" (flush_size), "r" (flush_base), - "i" (ASI_PHYS_USE_EC), "r" (flush_linesize)); -} - -static void cheetah_flush_ecache_line(unsigned long physaddr) -{ - unsigned long alias; - - physaddr &= ~(8UL - 1UL); - physaddr = (ecache_flush_physbase + - (physaddr & ((ecache_flush_size>>1UL) - 1UL))); - alias = physaddr + (ecache_flush_size >> 1UL); - __asm__ __volatile__("ldxa [%0] %2, %%g0\n\t" - "ldxa [%1] %2, %%g0\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (physaddr), "r" (alias), - "i" (ASI_PHYS_USE_EC)); -} - -/* Unfortunately, the diagnostic access to the I-cache tags we need to - * use to clear the thing interferes with I-cache coherency transactions. - * - * So we must only flush the I-cache when it is disabled. - */ -static void __cheetah_flush_icache(void) -{ - unsigned int icache_size, icache_line_size; - unsigned long addr; - - icache_size = local_cpu_data().icache_size; - icache_line_size = local_cpu_data().icache_line_size; - - /* Clear the valid bits in all the tags. */ - for (addr = 0; addr < icache_size; addr += icache_line_size) { - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (addr | (2 << 3)), - "i" (ASI_IC_TAG)); - } -} - -static void cheetah_flush_icache(void) -{ - unsigned long dcu_save; - - /* Save current DCU, disable I-cache. */ - __asm__ __volatile__("ldxa [%%g0] %1, %0\n\t" - "or %0, %2, %%g1\n\t" - "stxa %%g1, [%%g0] %1\n\t" - "membar #Sync" - : "=r" (dcu_save) - : "i" (ASI_DCU_CONTROL_REG), "i" (DCU_IC) - : "g1"); - - __cheetah_flush_icache(); - - /* Restore DCU register */ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (dcu_save), "i" (ASI_DCU_CONTROL_REG)); -} - -static void cheetah_flush_dcache(void) -{ - unsigned int dcache_size, dcache_line_size; - unsigned long addr; - - dcache_size = local_cpu_data().dcache_size; - dcache_line_size = local_cpu_data().dcache_line_size; - - for (addr = 0; addr < dcache_size; addr += dcache_line_size) { - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (addr), "i" (ASI_DCACHE_TAG)); - } -} - -/* In order to make the even parity correct we must do two things. - * First, we clear DC_data_parity and set DC_utag to an appropriate value. - * Next, we clear out all 32-bytes of data for that line. Data of - * all-zero + tag parity value of zero == correct parity. - */ -static void cheetah_plus_zap_dcache_parity(void) -{ - unsigned int dcache_size, dcache_line_size; - unsigned long addr; - - dcache_size = local_cpu_data().dcache_size; - dcache_line_size = local_cpu_data().dcache_line_size; - - for (addr = 0; addr < dcache_size; addr += dcache_line_size) { - unsigned long tag = (addr >> 14); - unsigned long line; - - __asm__ __volatile__("membar #Sync\n\t" - "stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (tag), "r" (addr), - "i" (ASI_DCACHE_UTAG)); - for (line = addr; line < addr + dcache_line_size; line += 8) - __asm__ __volatile__("membar #Sync\n\t" - "stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (line), - "i" (ASI_DCACHE_DATA)); - } -} - -/* Conversion tables used to frob Cheetah AFSR syndrome values into - * something palatable to the memory controller driver get_unumber - * routine. - */ -#define MT0 137 -#define MT1 138 -#define MT2 139 -#define NONE 254 -#define MTC0 140 -#define MTC1 141 -#define MTC2 142 -#define MTC3 143 -#define C0 128 -#define C1 129 -#define C2 130 -#define C3 131 -#define C4 132 -#define C5 133 -#define C6 134 -#define C7 135 -#define C8 136 -#define M2 144 -#define M3 145 -#define M4 146 -#define M 147 -static unsigned char cheetah_ecc_syntab[] = { -/*00*/NONE, C0, C1, M2, C2, M2, M3, 47, C3, M2, M2, 53, M2, 41, 29, M, -/*01*/C4, M, M, 50, M2, 38, 25, M2, M2, 33, 24, M2, 11, M, M2, 16, -/*02*/C5, M, M, 46, M2, 37, 19, M2, M, 31, 32, M, 7, M2, M2, 10, -/*03*/M2, 40, 13, M2, 59, M, M2, 66, M, M2, M2, 0, M2, 67, 71, M, -/*04*/C6, M, M, 43, M, 36, 18, M, M2, 49, 15, M, 63, M2, M2, 6, -/*05*/M2, 44, 28, M2, M, M2, M2, 52, 68, M2, M2, 62, M2, M3, M3, M4, -/*06*/M2, 26, 106, M2, 64, M, M2, 2, 120, M, M2, M3, M, M3, M3, M4, -/*07*/116, M2, M2, M3, M2, M3, M, M4, M2, 58, 54, M2, M, M4, M4, M3, -/*08*/C7, M2, M, 42, M, 35, 17, M2, M, 45, 14, M2, 21, M2, M2, 5, -/*09*/M, 27, M, M, 99, M, M, 3, 114, M2, M2, 20, M2, M3, M3, M, -/*0a*/M2, 23, 113, M2, 112, M2, M, 51, 95, M, M2, M3, M2, M3, M3, M2, -/*0b*/103, M, M2, M3, M2, M3, M3, M4, M2, 48, M, M, 73, M2, M, M3, -/*0c*/M2, 22, 110, M2, 109, M2, M, 9, 108, M2, M, M3, M2, M3, M3, M, -/*0d*/102, M2, M, M, M2, M3, M3, M, M2, M3, M3, M2, M, M4, M, M3, -/*0e*/98, M, M2, M3, M2, M, M3, M4, M2, M3, M3, M4, M3, M, M, M, -/*0f*/M2, M3, M3, M, M3, M, M, M, 56, M4, M, M3, M4, M, M, M, -/*10*/C8, M, M2, 39, M, 34, 105, M2, M, 30, 104, M, 101, M, M, 4, -/*11*/M, M, 100, M, 83, M, M2, 12, 87, M, M, 57, M2, M, M3, M, -/*12*/M2, 97, 82, M2, 78, M2, M2, 1, 96, M, M, M, M, M, M3, M2, -/*13*/94, M, M2, M3, M2, M, M3, M, M2, M, 79, M, 69, M, M4, M, -/*14*/M2, 93, 92, M, 91, M, M2, 8, 90, M2, M2, M, M, M, M, M4, -/*15*/89, M, M, M3, M2, M3, M3, M, M, M, M3, M2, M3, M2, M, M3, -/*16*/86, M, M2, M3, M2, M, M3, M, M2, M, M3, M, M3, M, M, M3, -/*17*/M, M, M3, M2, M3, M2, M4, M, 60, M, M2, M3, M4, M, M, M2, -/*18*/M2, 88, 85, M2, 84, M, M2, 55, 81, M2, M2, M3, M2, M3, M3, M4, -/*19*/77, M, M, M, M2, M3, M, M, M2, M3, M3, M4, M3, M2, M, M, -/*1a*/74, M, M2, M3, M, M, M3, M, M, M, M3, M, M3, M, M4, M3, -/*1b*/M2, 70, 107, M4, 65, M2, M2, M, 127, M, M, M, M2, M3, M3, M, -/*1c*/80, M2, M2, 72, M, 119, 118, M, M2, 126, 76, M, 125, M, M4, M3, -/*1d*/M2, 115, 124, M, 75, M, M, M3, 61, M, M4, M, M4, M, M, M, -/*1e*/M, 123, 122, M4, 121, M4, M, M3, 117, M2, M2, M3, M4, M3, M, M, -/*1f*/111, M, M, M, M4, M3, M3, M, M, M, M3, M, M3, M2, M, M -}; -static unsigned char cheetah_mtag_syntab[] = { - NONE, MTC0, - MTC1, NONE, - MTC2, NONE, - NONE, MT0, - MTC3, NONE, - NONE, MT1, - NONE, MT2, - NONE, NONE -}; - -/* Return the highest priority error conditon mentioned. */ -static inline unsigned long cheetah_get_hipri(unsigned long afsr) -{ - unsigned long tmp = 0; - int i; - - for (i = 0; cheetah_error_table[i].mask; i++) { - if ((tmp = (afsr & cheetah_error_table[i].mask)) != 0UL) - return tmp; - } - return tmp; -} - -static const char *cheetah_get_string(unsigned long bit) -{ - int i; - - for (i = 0; cheetah_error_table[i].mask; i++) { - if ((bit & cheetah_error_table[i].mask) != 0UL) - return cheetah_error_table[i].name; - } - return "???"; -} - -static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *info, - unsigned long afsr, unsigned long afar, int recoverable) -{ - unsigned long hipri; - char unum[256]; - - printk("%s" "ERROR(%d): Cheetah error trap taken afsr[%016lx] afar[%016lx] TL1(%d)\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - afsr, afar, - (afsr & CHAFSR_TL1) ? 1 : 0); - printk("%s" "ERROR(%d): TPC[%lx] TNPC[%lx] O7[%lx] TSTATE[%lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate); - printk("%s" "ERROR(%d): ", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id()); - printk("TPC<%pS>\n", (void *) regs->tpc); - printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT, - (afsr & CHAFSR_E_SYNDROME) >> CHAFSR_E_SYNDROME_SHIFT, - (afsr & CHAFSR_ME) ? ", Multiple Errors" : "", - (afsr & CHAFSR_PRIV) ? ", Privileged" : ""); - hipri = cheetah_get_hipri(afsr); - printk("%s" "ERROR(%d): Highest priority error (%016lx) \"%s\"\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - hipri, cheetah_get_string(hipri)); - - /* Try to get unumber if relevant. */ -#define ESYND_ERRORS (CHAFSR_IVC | CHAFSR_IVU | \ - CHAFSR_CPC | CHAFSR_CPU | \ - CHAFSR_UE | CHAFSR_CE | \ - CHAFSR_EDC | CHAFSR_EDU | \ - CHAFSR_UCC | CHAFSR_UCU | \ - CHAFSR_WDU | CHAFSR_WDC) -#define MSYND_ERRORS (CHAFSR_EMC | CHAFSR_EMU) - if (afsr & ESYND_ERRORS) { - int syndrome; - int ret; - - syndrome = (afsr & CHAFSR_E_SYNDROME) >> CHAFSR_E_SYNDROME_SHIFT; - syndrome = cheetah_ecc_syntab[syndrome]; - ret = sprintf_dimm(syndrome, afar, unum, sizeof(unum)); - if (ret != -1) - printk("%s" "ERROR(%d): AFAR E-syndrome [%s]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), - smp_processor_id(), unum); - } else if (afsr & MSYND_ERRORS) { - int syndrome; - int ret; - - syndrome = (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT; - syndrome = cheetah_mtag_syntab[syndrome]; - ret = sprintf_dimm(syndrome, afar, unum, sizeof(unum)); - if (ret != -1) - printk("%s" "ERROR(%d): AFAR M-syndrome [%s]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), - smp_processor_id(), unum); - } - - /* Now dump the cache snapshots. */ - printk("%s" "ERROR(%d): D-cache idx[%x] tag[%016lx] utag[%016lx] stag[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (int) info->dcache_index, - info->dcache_tag, - info->dcache_utag, - info->dcache_stag); - printk("%s" "ERROR(%d): D-cache data0[%016lx] data1[%016lx] data2[%016lx] data3[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->dcache_data[0], - info->dcache_data[1], - info->dcache_data[2], - info->dcache_data[3]); - printk("%s" "ERROR(%d): I-cache idx[%x] tag[%016lx] utag[%016lx] stag[%016lx] " - "u[%016lx] l[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (int) info->icache_index, - info->icache_tag, - info->icache_utag, - info->icache_stag, - info->icache_upper, - info->icache_lower); - printk("%s" "ERROR(%d): I-cache INSN0[%016lx] INSN1[%016lx] INSN2[%016lx] INSN3[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->icache_data[0], - info->icache_data[1], - info->icache_data[2], - info->icache_data[3]); - printk("%s" "ERROR(%d): I-cache INSN4[%016lx] INSN5[%016lx] INSN6[%016lx] INSN7[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->icache_data[4], - info->icache_data[5], - info->icache_data[6], - info->icache_data[7]); - printk("%s" "ERROR(%d): E-cache idx[%x] tag[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (int) info->ecache_index, info->ecache_tag); - printk("%s" "ERROR(%d): E-cache data0[%016lx] data1[%016lx] data2[%016lx] data3[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->ecache_data[0], - info->ecache_data[1], - info->ecache_data[2], - info->ecache_data[3]); - - afsr = (afsr & ~hipri) & cheetah_afsr_errors; - while (afsr != 0UL) { - unsigned long bit = cheetah_get_hipri(afsr); - - printk("%s" "ERROR: Multiple-error (%016lx) \"%s\"\n", - (recoverable ? KERN_WARNING : KERN_CRIT), - bit, cheetah_get_string(bit)); - - afsr &= ~bit; - } - - if (!recoverable) - printk(KERN_CRIT "ERROR: This condition is not recoverable.\n"); -} - -static int cheetah_recheck_errors(struct cheetah_err_info *logp) -{ - unsigned long afsr, afar; - int ret = 0; - - __asm__ __volatile__("ldxa [%%g0] %1, %0\n\t" - : "=r" (afsr) - : "i" (ASI_AFSR)); - if ((afsr & cheetah_afsr_errors) != 0) { - if (logp != NULL) { - __asm__ __volatile__("ldxa [%%g0] %1, %0\n\t" - : "=r" (afar) - : "i" (ASI_AFAR)); - logp->afsr = afsr; - logp->afar = afar; - } - ret = 1; - } - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync\n\t" - : : "r" (afsr), "i" (ASI_AFSR)); - - return ret; -} - -void cheetah_fecc_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) -{ - struct cheetah_err_info local_snapshot, *p; - int recoverable; - - /* Flush E-cache */ - cheetah_flush_ecache(); - - p = cheetah_get_error_log(afsr); - if (!p) { - prom_printf("ERROR: Early Fast-ECC error afsr[%016lx] afar[%016lx]\n", - afsr, afar); - prom_printf("ERROR: CPU(%d) TPC[%016lx] TNPC[%016lx] TSTATE[%016lx]\n", - smp_processor_id(), regs->tpc, regs->tnpc, regs->tstate); - prom_halt(); - } - - /* Grab snapshot of logged error. */ - memcpy(&local_snapshot, p, sizeof(local_snapshot)); - - /* If the current trap snapshot does not match what the - * trap handler passed along into our args, big trouble. - * In such a case, mark the local copy as invalid. - * - * Else, it matches and we mark the afsr in the non-local - * copy as invalid so we may log new error traps there. - */ - if (p->afsr != afsr || p->afar != afar) - local_snapshot.afsr = CHAFSR_INVALID; - else - p->afsr = CHAFSR_INVALID; - - cheetah_flush_icache(); - cheetah_flush_dcache(); - - /* Re-enable I-cache/D-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_DC | DCU_IC) - : "g1"); - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN) - : "g1"); - - /* Decide if we can continue after handling this trap and - * logging the error. - */ - recoverable = 1; - if (afsr & (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP)) - recoverable = 0; - - /* Re-check AFSR/AFAR. What we are looking for here is whether a new - * error was logged while we had error reporting traps disabled. - */ - if (cheetah_recheck_errors(&local_snapshot)) { - unsigned long new_afsr = local_snapshot.afsr; - - /* If we got a new asynchronous error, die... */ - if (new_afsr & (CHAFSR_EMU | CHAFSR_EDU | - CHAFSR_WDU | CHAFSR_CPU | - CHAFSR_IVU | CHAFSR_UE | - CHAFSR_BERR | CHAFSR_TO)) - recoverable = 0; - } - - /* Log errors. */ - cheetah_log_errors(regs, &local_snapshot, afsr, afar, recoverable); - - if (!recoverable) - panic("Irrecoverable Fast-ECC error trap.\n"); - - /* Flush E-cache to kick the error trap handlers out. */ - cheetah_flush_ecache(); -} - -/* Try to fix a correctable error by pushing the line out from - * the E-cache. Recheck error reporting registers to see if the - * problem is intermittent. - */ -static int cheetah_fix_ce(unsigned long physaddr) -{ - unsigned long orig_estate; - unsigned long alias1, alias2; - int ret; - - /* Make sure correctable error traps are disabled. */ - __asm__ __volatile__("ldxa [%%g0] %2, %0\n\t" - "andn %0, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %2\n\t" - "membar #Sync" - : "=&r" (orig_estate) - : "i" (ESTATE_ERROR_CEEN), - "i" (ASI_ESTATE_ERROR_EN) - : "g1"); - - /* We calculate alias addresses that will force the - * cache line in question out of the E-cache. Then - * we bring it back in with an atomic instruction so - * that we get it in some modified/exclusive state, - * then we displace it again to try and get proper ECC - * pushed back into the system. - */ - physaddr &= ~(8UL - 1UL); - alias1 = (ecache_flush_physbase + - (physaddr & ((ecache_flush_size >> 1) - 1))); - alias2 = alias1 + (ecache_flush_size >> 1); - __asm__ __volatile__("ldxa [%0] %3, %%g0\n\t" - "ldxa [%1] %3, %%g0\n\t" - "casxa [%2] %3, %%g0, %%g0\n\t" - "membar #StoreLoad | #StoreStore\n\t" - "ldxa [%0] %3, %%g0\n\t" - "ldxa [%1] %3, %%g0\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (alias1), "r" (alias2), - "r" (physaddr), "i" (ASI_PHYS_USE_EC)); - - /* Did that trigger another error? */ - if (cheetah_recheck_errors(NULL)) { - /* Try one more time. */ - __asm__ __volatile__("ldxa [%0] %1, %%g0\n\t" - "membar #Sync" - : : "r" (physaddr), "i" (ASI_PHYS_USE_EC)); - if (cheetah_recheck_errors(NULL)) - ret = 2; - else - ret = 1; - } else { - /* No new error, intermittent problem. */ - ret = 0; - } - - /* Restore error enables. */ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : : "r" (orig_estate), "i" (ASI_ESTATE_ERROR_EN)); - - return ret; -} - -/* Return non-zero if PADDR is a valid physical memory address. */ -static int cheetah_check_main_memory(unsigned long paddr) -{ - unsigned long vaddr = PAGE_OFFSET + paddr; - - if (vaddr > (unsigned long) high_memory) - return 0; - - return kern_addr_valid(vaddr); -} - -void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) -{ - struct cheetah_err_info local_snapshot, *p; - int recoverable, is_memory; - - p = cheetah_get_error_log(afsr); - if (!p) { - prom_printf("ERROR: Early CEE error afsr[%016lx] afar[%016lx]\n", - afsr, afar); - prom_printf("ERROR: CPU(%d) TPC[%016lx] TNPC[%016lx] TSTATE[%016lx]\n", - smp_processor_id(), regs->tpc, regs->tnpc, regs->tstate); - prom_halt(); - } - - /* Grab snapshot of logged error. */ - memcpy(&local_snapshot, p, sizeof(local_snapshot)); - - /* If the current trap snapshot does not match what the - * trap handler passed along into our args, big trouble. - * In such a case, mark the local copy as invalid. - * - * Else, it matches and we mark the afsr in the non-local - * copy as invalid so we may log new error traps there. - */ - if (p->afsr != afsr || p->afar != afar) - local_snapshot.afsr = CHAFSR_INVALID; - else - p->afsr = CHAFSR_INVALID; - - is_memory = cheetah_check_main_memory(afar); - - if (is_memory && (afsr & CHAFSR_CE) != 0UL) { - /* XXX Might want to log the results of this operation - * XXX somewhere... -DaveM - */ - cheetah_fix_ce(afar); - } - - { - int flush_all, flush_line; - - flush_all = flush_line = 0; - if ((afsr & CHAFSR_EDC) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_EDC) - flush_line = 1; - else - flush_all = 1; - } else if ((afsr & CHAFSR_CPC) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_CPC) - flush_line = 1; - else - flush_all = 1; - } - - /* Trap handler only disabled I-cache, flush it. */ - cheetah_flush_icache(); - - /* Re-enable I-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_IC) - : "g1"); - - if (flush_all) - cheetah_flush_ecache(); - else if (flush_line) - cheetah_flush_ecache_line(afar); - } - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_CEEN) - : "g1"); - - /* Decide if we can continue after handling this trap and - * logging the error. - */ - recoverable = 1; - if (afsr & (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP)) - recoverable = 0; - - /* Re-check AFSR/AFAR */ - (void) cheetah_recheck_errors(&local_snapshot); - - /* Log errors. */ - cheetah_log_errors(regs, &local_snapshot, afsr, afar, recoverable); - - if (!recoverable) - panic("Irrecoverable Correctable-ECC error trap.\n"); -} - -void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) -{ - struct cheetah_err_info local_snapshot, *p; - int recoverable, is_memory; - -#ifdef CONFIG_PCI - /* Check for the special PCI poke sequence. */ - if (pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) { - cheetah_flush_icache(); - cheetah_flush_dcache(); - - /* Re-enable I-cache/D-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_DC | DCU_IC) - : "g1"); - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN) - : "g1"); - - (void) cheetah_recheck_errors(NULL); - - pci_poke_faulted = 1; - regs->tpc += 4; - regs->tnpc = regs->tpc + 4; - return; - } -#endif - - p = cheetah_get_error_log(afsr); - if (!p) { - prom_printf("ERROR: Early deferred error afsr[%016lx] afar[%016lx]\n", - afsr, afar); - prom_printf("ERROR: CPU(%d) TPC[%016lx] TNPC[%016lx] TSTATE[%016lx]\n", - smp_processor_id(), regs->tpc, regs->tnpc, regs->tstate); - prom_halt(); - } - - /* Grab snapshot of logged error. */ - memcpy(&local_snapshot, p, sizeof(local_snapshot)); - - /* If the current trap snapshot does not match what the - * trap handler passed along into our args, big trouble. - * In such a case, mark the local copy as invalid. - * - * Else, it matches and we mark the afsr in the non-local - * copy as invalid so we may log new error traps there. - */ - if (p->afsr != afsr || p->afar != afar) - local_snapshot.afsr = CHAFSR_INVALID; - else - p->afsr = CHAFSR_INVALID; - - is_memory = cheetah_check_main_memory(afar); - - { - int flush_all, flush_line; - - flush_all = flush_line = 0; - if ((afsr & CHAFSR_EDU) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_EDU) - flush_line = 1; - else - flush_all = 1; - } else if ((afsr & CHAFSR_BERR) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_BERR) - flush_line = 1; - else - flush_all = 1; - } - - cheetah_flush_icache(); - cheetah_flush_dcache(); - - /* Re-enable I/D caches */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_IC | DCU_DC) - : "g1"); - - if (flush_all) - cheetah_flush_ecache(); - else if (flush_line) - cheetah_flush_ecache_line(afar); - } - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN) - : "g1"); - - /* Decide if we can continue after handling this trap and - * logging the error. - */ - recoverable = 1; - if (afsr & (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP)) - recoverable = 0; - - /* Re-check AFSR/AFAR. What we are looking for here is whether a new - * error was logged while we had error reporting traps disabled. - */ - if (cheetah_recheck_errors(&local_snapshot)) { - unsigned long new_afsr = local_snapshot.afsr; - - /* If we got a new asynchronous error, die... */ - if (new_afsr & (CHAFSR_EMU | CHAFSR_EDU | - CHAFSR_WDU | CHAFSR_CPU | - CHAFSR_IVU | CHAFSR_UE | - CHAFSR_BERR | CHAFSR_TO)) - recoverable = 0; - } - - /* Log errors. */ - cheetah_log_errors(regs, &local_snapshot, afsr, afar, recoverable); - - /* "Recoverable" here means we try to yank the page from ever - * being newly used again. This depends upon a few things: - * 1) Must be main memory, and AFAR must be valid. - * 2) If we trapped from user, OK. - * 3) Else, if we trapped from kernel we must find exception - * table entry (ie. we have to have been accessing user - * space). - * - * If AFAR is not in main memory, or we trapped from kernel - * and cannot find an exception table entry, it is unacceptable - * to try and continue. - */ - if (recoverable && is_memory) { - if ((regs->tstate & TSTATE_PRIV) == 0UL) { - /* OK, usermode access. */ - recoverable = 1; - } else { - const struct exception_table_entry *entry; - - entry = search_exception_tables(regs->tpc); - if (entry) { - /* OK, kernel access to userspace. */ - recoverable = 1; - - } else { - /* BAD, privileged state is corrupted. */ - recoverable = 0; - } - - if (recoverable) { - if (pfn_valid(afar >> PAGE_SHIFT)) - get_page(pfn_to_page(afar >> PAGE_SHIFT)); - else - recoverable = 0; - - /* Only perform fixup if we still have a - * recoverable condition. - */ - if (recoverable) { - regs->tpc = entry->fixup; - regs->tnpc = regs->tpc + 4; - } - } - } - } else { - recoverable = 0; - } - - if (!recoverable) - panic("Irrecoverable deferred error trap.\n"); -} - -/* Handle a D/I cache parity error trap. TYPE is encoded as: - * - * Bit0: 0=dcache,1=icache - * Bit1: 0=recoverable,1=unrecoverable - * - * The hardware has disabled both the I-cache and D-cache in - * the %dcr register. - */ -void cheetah_plus_parity_error(int type, struct pt_regs *regs) -{ - if (type & 0x1) - __cheetah_flush_icache(); - else - cheetah_plus_zap_dcache_parity(); - cheetah_flush_dcache(); - - /* Re-enable I-cache/D-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_DC | DCU_IC) - : "g1"); - - if (type & 0x2) { - printk(KERN_EMERG "CPU[%d]: Cheetah+ %c-cache parity error at TPC[%016lx]\n", - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); - printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc); - panic("Irrecoverable Cheetah+ parity error."); - } - - printk(KERN_WARNING "CPU[%d]: Cheetah+ %c-cache parity error at TPC[%016lx]\n", - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); - printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc); -} - -struct sun4v_error_entry { - u64 err_handle; - u64 err_stick; - - u32 err_type; -#define SUN4V_ERR_TYPE_UNDEFINED 0 -#define SUN4V_ERR_TYPE_UNCORRECTED_RES 1 -#define SUN4V_ERR_TYPE_PRECISE_NONRES 2 -#define SUN4V_ERR_TYPE_DEFERRED_NONRES 3 -#define SUN4V_ERR_TYPE_WARNING_RES 4 - - u32 err_attrs; -#define SUN4V_ERR_ATTRS_PROCESSOR 0x00000001 -#define SUN4V_ERR_ATTRS_MEMORY 0x00000002 -#define SUN4V_ERR_ATTRS_PIO 0x00000004 -#define SUN4V_ERR_ATTRS_INT_REGISTERS 0x00000008 -#define SUN4V_ERR_ATTRS_FPU_REGISTERS 0x00000010 -#define SUN4V_ERR_ATTRS_USER_MODE 0x01000000 -#define SUN4V_ERR_ATTRS_PRIV_MODE 0x02000000 -#define SUN4V_ERR_ATTRS_RES_QUEUE_FULL 0x80000000 - - u64 err_raddr; - u32 err_size; - u16 err_cpu; - u16 err_pad; -}; - -static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0); -static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0); - -static const char *sun4v_err_type_to_str(u32 type) -{ - switch (type) { - case SUN4V_ERR_TYPE_UNDEFINED: - return "undefined"; - case SUN4V_ERR_TYPE_UNCORRECTED_RES: - return "uncorrected resumable"; - case SUN4V_ERR_TYPE_PRECISE_NONRES: - return "precise nonresumable"; - case SUN4V_ERR_TYPE_DEFERRED_NONRES: - return "deferred nonresumable"; - case SUN4V_ERR_TYPE_WARNING_RES: - return "warning resumable"; - default: - return "unknown"; - }; -} - -static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent, int cpu, const char *pfx, atomic_t *ocnt) -{ - int cnt; - - printk("%s: Reporting on cpu %d\n", pfx, cpu); - printk("%s: err_handle[%lx] err_stick[%lx] err_type[%08x:%s]\n", - pfx, - ent->err_handle, ent->err_stick, - ent->err_type, - sun4v_err_type_to_str(ent->err_type)); - printk("%s: err_attrs[%08x:%s %s %s %s %s %s %s %s]\n", - pfx, - ent->err_attrs, - ((ent->err_attrs & SUN4V_ERR_ATTRS_PROCESSOR) ? - "processor" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_MEMORY) ? - "memory" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_PIO) ? - "pio" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_INT_REGISTERS) ? - "integer-regs" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_FPU_REGISTERS) ? - "fpu-regs" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_USER_MODE) ? - "user" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_PRIV_MODE) ? - "privileged" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_RES_QUEUE_FULL) ? - "queue-full" : "")); - printk("%s: err_raddr[%016lx] err_size[%u] err_cpu[%u]\n", - pfx, - ent->err_raddr, ent->err_size, ent->err_cpu); - - show_regs(regs); - - if ((cnt = atomic_read(ocnt)) != 0) { - atomic_set(ocnt, 0); - wmb(); - printk("%s: Queue overflowed %d times.\n", - pfx, cnt); - } -} - -/* We run with %pil set to 15 and PSTATE_IE enabled in %pstate. - * Log the event and clear the first word of the entry. - */ -void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) -{ - struct sun4v_error_entry *ent, local_copy; - struct trap_per_cpu *tb; - unsigned long paddr; - int cpu; - - cpu = get_cpu(); - - tb = &trap_block[cpu]; - paddr = tb->resum_kernel_buf_pa + offset; - ent = __va(paddr); - - memcpy(&local_copy, ent, sizeof(struct sun4v_error_entry)); - - /* We have a local copy now, so release the entry. */ - ent->err_handle = 0; - wmb(); - - put_cpu(); - - if (ent->err_type == SUN4V_ERR_TYPE_WARNING_RES) { - /* If err_type is 0x4, it's a powerdown request. Do - * not do the usual resumable error log because that - * makes it look like some abnormal error. - */ - printk(KERN_INFO "Power down request...\n"); - kill_cad_pid(SIGINT, 1); - return; - } - - sun4v_log_error(regs, &local_copy, cpu, - KERN_ERR "RESUMABLE ERROR", - &sun4v_resum_oflow_cnt); -} - -/* If we try to printk() we'll probably make matters worse, by trying - * to retake locks this cpu already holds or causing more errors. So - * just bump a counter, and we'll report these counter bumps above. - */ -void sun4v_resum_overflow(struct pt_regs *regs) -{ - atomic_inc(&sun4v_resum_oflow_cnt); -} - -/* We run with %pil set to 15 and PSTATE_IE enabled in %pstate. - * Log the event, clear the first word of the entry, and die. - */ -void sun4v_nonresum_error(struct pt_regs *regs, unsigned long offset) -{ - struct sun4v_error_entry *ent, local_copy; - struct trap_per_cpu *tb; - unsigned long paddr; - int cpu; - - cpu = get_cpu(); - - tb = &trap_block[cpu]; - paddr = tb->nonresum_kernel_buf_pa + offset; - ent = __va(paddr); - - memcpy(&local_copy, ent, sizeof(struct sun4v_error_entry)); - - /* We have a local copy now, so release the entry. */ - ent->err_handle = 0; - wmb(); - - put_cpu(); - -#ifdef CONFIG_PCI - /* Check for the special PCI poke sequence. */ - if (pci_poke_in_progress && pci_poke_cpu == cpu) { - pci_poke_faulted = 1; - regs->tpc += 4; - regs->tnpc = regs->tpc + 4; - return; - } -#endif - - sun4v_log_error(regs, &local_copy, cpu, - KERN_EMERG "NON-RESUMABLE ERROR", - &sun4v_nonresum_oflow_cnt); - - panic("Non-resumable error."); -} - -/* If we try to printk() we'll probably make matters worse, by trying - * to retake locks this cpu already holds or causing more errors. So - * just bump a counter, and we'll report these counter bumps above. - */ -void sun4v_nonresum_overflow(struct pt_regs *regs) -{ - /* XXX Actually even this can make not that much sense. Perhaps - * XXX we should just pull the plug and panic directly from here? - */ - atomic_inc(&sun4v_nonresum_oflow_cnt); -} - -unsigned long sun4v_err_itlb_vaddr; -unsigned long sun4v_err_itlb_ctx; -unsigned long sun4v_err_itlb_pte; -unsigned long sun4v_err_itlb_error; - -void sun4v_itlb_error_report(struct pt_regs *regs, int tl) -{ - if (tl > 1) - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); - printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", - sun4v_err_itlb_vaddr, sun4v_err_itlb_ctx, - sun4v_err_itlb_pte, sun4v_err_itlb_error); - - prom_halt(); -} - -unsigned long sun4v_err_dtlb_vaddr; -unsigned long sun4v_err_dtlb_ctx; -unsigned long sun4v_err_dtlb_pte; -unsigned long sun4v_err_dtlb_error; - -void sun4v_dtlb_error_report(struct pt_regs *regs, int tl) -{ - if (tl > 1) - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); - printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", - sun4v_err_dtlb_vaddr, sun4v_err_dtlb_ctx, - sun4v_err_dtlb_pte, sun4v_err_dtlb_error); - - prom_halt(); -} - -void hypervisor_tlbop_error(unsigned long err, unsigned long op) -{ - printk(KERN_CRIT "SUN4V: TLB hv call error %lu for op %lu\n", - err, op); -} - -void hypervisor_tlbop_error_xcall(unsigned long err, unsigned long op) -{ - printk(KERN_CRIT "SUN4V: XCALL TLB hv call error %lu for op %lu\n", - err, op); -} - -void do_fpe_common(struct pt_regs *regs) -{ - if (regs->tstate & TSTATE_PRIV) { - regs->tpc = regs->tnpc; - regs->tnpc += 4; - } else { - unsigned long fsr = current_thread_info()->xfsr[0]; - siginfo_t info; - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - info.si_code = __SI_FAULT; - if ((fsr & 0x1c000) == (1 << 14)) { - if (fsr & 0x10) - info.si_code = FPE_FLTINV; - else if (fsr & 0x08) - info.si_code = FPE_FLTOVF; - else if (fsr & 0x04) - info.si_code = FPE_FLTUND; - else if (fsr & 0x02) - info.si_code = FPE_FLTDIV; - else if (fsr & 0x01) - info.si_code = FPE_FLTRES; - } - force_sig_info(SIGFPE, &info, current); - } -} - -void do_fpieee(struct pt_regs *regs) -{ - if (notify_die(DIE_TRAP, "fpu exception ieee", regs, - 0, 0x24, SIGFPE) == NOTIFY_STOP) - return; - - do_fpe_common(regs); -} - -extern int do_mathemu(struct pt_regs *, struct fpustate *); - -void do_fpother(struct pt_regs *regs) -{ - struct fpustate *f = FPUSTATE; - int ret = 0; - - if (notify_die(DIE_TRAP, "fpu exception other", regs, - 0, 0x25, SIGFPE) == NOTIFY_STOP) - return; - - switch ((current_thread_info()->xfsr[0] & 0x1c000)) { - case (2 << 14): /* unfinished_FPop */ - case (3 << 14): /* unimplemented_FPop */ - ret = do_mathemu(regs, f); - break; - } - if (ret) - return; - do_fpe_common(regs); -} - -void do_tof(struct pt_regs *regs) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "tagged arithmetic overflow", regs, - 0, 0x26, SIGEMT) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) - die_if_kernel("Penguin overflow trap from kernel mode", regs); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGEMT; - info.si_errno = 0; - info.si_code = EMT_TAGOVF; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGEMT, &info, current); -} - -void do_div0(struct pt_regs *regs) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "integer division by zero", regs, - 0, 0x28, SIGFPE) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) - die_if_kernel("TL0: Kernel divide by zero.", regs); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_code = FPE_INTDIV; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGFPE, &info, current); -} - -static void instruction_dump(unsigned int *pc) -{ - int i; - - if ((((unsigned long) pc) & 3)) - return; - - printk("Instruction DUMP:"); - for (i = -3; i < 6; i++) - printk("%c%08x%c",i?' ':'<',pc[i],i?' ':'>'); - printk("\n"); -} - -static void user_instruction_dump(unsigned int __user *pc) -{ - int i; - unsigned int buf[9]; - - if ((((unsigned long) pc) & 3)) - return; - - if (copy_from_user(buf, pc - 3, sizeof(buf))) - return; - - printk("Instruction DUMP:"); - for (i = 0; i < 9; i++) - printk("%c%08x%c",i==3?' ':'<',buf[i],i==3?' ':'>'); - printk("\n"); -} - -void show_stack(struct task_struct *tsk, unsigned long *_ksp) -{ - unsigned long fp, thread_base, ksp; - struct thread_info *tp; - int count = 0; - - ksp = (unsigned long) _ksp; - if (!tsk) - tsk = current; - tp = task_thread_info(tsk); - if (ksp == 0UL) { - if (tsk == current) - asm("mov %%fp, %0" : "=r" (ksp)); - else - ksp = tp->ksp; - } - if (tp == current_thread_info()) - flushw_all(); - - fp = ksp + STACK_BIAS; - thread_base = (unsigned long) tp; - - printk("Call Trace:\n"); - do { - struct sparc_stackf *sf; - struct pt_regs *regs; - unsigned long pc; - - if (!kstack_valid(tp, fp)) - break; - sf = (struct sparc_stackf *) fp; - regs = (struct pt_regs *) (sf + 1); - - if (kstack_is_trap_frame(tp, regs)) { - if (!(regs->tstate & TSTATE_PRIV)) - break; - pc = regs->tpc; - fp = regs->u_regs[UREG_I6] + STACK_BIAS; - } else { - pc = sf->callers_pc; - fp = (unsigned long)sf->fp + STACK_BIAS; - } - - printk(" [%016lx] %pS\n", pc, (void *) pc); - } while (++count < 16); -} - -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - -static inline int is_kernel_stack(struct task_struct *task, - struct reg_window *rw) -{ - unsigned long rw_addr = (unsigned long) rw; - unsigned long thread_base, thread_end; - - if (rw_addr < PAGE_OFFSET) { - if (task != &init_task) - return 0; - } - - thread_base = (unsigned long) task_stack_page(task); - thread_end = thread_base + sizeof(union thread_union); - if (rw_addr >= thread_base && - rw_addr < thread_end && - !(rw_addr & 0x7UL)) - return 1; - - return 0; -} - -static inline struct reg_window *kernel_stack_up(struct reg_window *rw) -{ - unsigned long fp = rw->ins[6]; - - if (!fp) - return NULL; - - return (struct reg_window *) (fp + STACK_BIAS); -} - -void die_if_kernel(char *str, struct pt_regs *regs) -{ - static int die_counter; - int count = 0; - - /* Amuse the user. */ - printk( -" \\|/ ____ \\|/\n" -" \"@'/ .. \\`@\"\n" -" /_| \\__/ |_\\\n" -" \\__U_/\n"); - - printk("%s(%d): %s [#%d]\n", current->comm, task_pid_nr(current), str, ++die_counter); - notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); - __asm__ __volatile__("flushw"); - show_regs(regs); - add_taint(TAINT_DIE); - if (regs->tstate & TSTATE_PRIV) { - struct reg_window *rw = (struct reg_window *) - (regs->u_regs[UREG_FP] + STACK_BIAS); - - /* Stop the back trace when we hit userland or we - * find some badly aligned kernel stack. - */ - while (rw && - count++ < 30&& - is_kernel_stack(current, rw)) { - printk("Caller[%016lx]: %pS\n", rw->ins[7], - (void *) rw->ins[7]); - - rw = kernel_stack_up(rw); - } - instruction_dump ((unsigned int *) regs->tpc); - } else { - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - user_instruction_dump ((unsigned int __user *) regs->tpc); - } - if (regs->tstate & TSTATE_PRIV) - do_exit(SIGKILL); - do_exit(SIGSEGV); -} - -#define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19)) -#define VIS_OPCODE_VAL ((0x2 << 30) | (0x36 << 19)) - -extern int handle_popc(u32 insn, struct pt_regs *regs); -extern int handle_ldf_stq(u32 insn, struct pt_regs *regs); - -void do_illegal_instruction(struct pt_regs *regs) -{ - unsigned long pc = regs->tpc; - unsigned long tstate = regs->tstate; - u32 insn; - siginfo_t info; - - if (notify_die(DIE_TRAP, "illegal instruction", regs, - 0, 0x10, SIGILL) == NOTIFY_STOP) - return; - - if (tstate & TSTATE_PRIV) - die_if_kernel("Kernel illegal instruction", regs); - if (test_thread_flag(TIF_32BIT)) - pc = (u32)pc; - if (get_user(insn, (u32 __user *) pc) != -EFAULT) { - if ((insn & 0xc1ffc000) == 0x81700000) /* POPC */ { - if (handle_popc(insn, regs)) - return; - } else if ((insn & 0xc1580000) == 0xc1100000) /* LDQ/STQ */ { - if (handle_ldf_stq(insn, regs)) - return; - } else if (tlb_type == hypervisor) { - if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) { - if (!vis_emul(regs, insn)) - return; - } else { - struct fpustate *f = FPUSTATE; - - /* XXX maybe verify XFSR bits like - * XXX do_fpother() does? - */ - if (do_mathemu(regs, f)) - return; - } - } - } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLOPC; - info.si_addr = (void __user *)pc; - info.si_trapno = 0; - force_sig_info(SIGILL, &info, current); -} - -extern void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); - -void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "memory address unaligned", regs, - 0, 0x34, SIGSEGV) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc)); - return; - } - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = (void __user *)sfar; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "memory address unaligned", regs, - 0, 0x34, SIGSEGV) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc)); - return; - } - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = (void __user *) addr; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void do_privop(struct pt_regs *regs) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "privileged operation", regs, - 0, 0x11, SIGILL) == NOTIFY_STOP) - return; - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_PRVOPC; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGILL, &info, current); -} - -void do_privact(struct pt_regs *regs) -{ - do_privop(regs); -} - -/* Trap level 1 stuff or other traps we should never see... */ -void do_cee(struct pt_regs *regs) -{ - die_if_kernel("TL0: Cache Error Exception", regs); -} - -void do_cee_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Cache Error Exception", regs); -} - -void do_dae_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Data Access Exception", regs); -} - -void do_iae_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Instruction Access Exception", regs); -} - -void do_div0_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: DIV0 Exception", regs); -} - -void do_fpdis_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: FPU Disabled", regs); -} - -void do_fpieee_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: FPU IEEE Exception", regs); -} - -void do_fpother_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: FPU Other Exception", regs); -} - -void do_ill_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Illegal Instruction Exception", regs); -} - -void do_irq_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: IRQ Exception", regs); -} - -void do_lddfmna_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: LDDF Exception", regs); -} - -void do_stdfmna_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: STDF Exception", regs); -} - -void do_paw(struct pt_regs *regs) -{ - die_if_kernel("TL0: Phys Watchpoint Exception", regs); -} - -void do_paw_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Phys Watchpoint Exception", regs); -} - -void do_vaw(struct pt_regs *regs) -{ - die_if_kernel("TL0: Virt Watchpoint Exception", regs); -} - -void do_vaw_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Virt Watchpoint Exception", regs); -} - -void do_tof_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Tag Overflow Exception", regs); -} - -void do_getpsr(struct pt_regs *regs) -{ - regs->u_regs[UREG_I0] = tstate_to_psr(regs->tstate); - regs->tpc = regs->tnpc; - regs->tnpc += 4; - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } -} - -struct trap_per_cpu trap_block[NR_CPUS]; - -/* This can get invoked before sched_init() so play it super safe - * and use hard_smp_processor_id(). - */ -void notrace init_cur_cpu_trap(struct thread_info *t) -{ - int cpu = hard_smp_processor_id(); - struct trap_per_cpu *p = &trap_block[cpu]; - - p->thread = t; - p->pgd_paddr = 0; -} - -extern void thread_info_offsets_are_bolixed_dave(void); -extern void trap_per_cpu_offsets_are_bolixed_dave(void); -extern void tsb_config_offsets_are_bolixed_dave(void); - -/* Only invoked on boot processor. */ -void __init trap_init(void) -{ - /* Compile time sanity check. */ - if (TI_TASK != offsetof(struct thread_info, task) || - TI_FLAGS != offsetof(struct thread_info, flags) || - TI_CPU != offsetof(struct thread_info, cpu) || - TI_FPSAVED != offsetof(struct thread_info, fpsaved) || - TI_KSP != offsetof(struct thread_info, ksp) || - TI_FAULT_ADDR != offsetof(struct thread_info, fault_address) || - TI_KREGS != offsetof(struct thread_info, kregs) || - TI_UTRAPS != offsetof(struct thread_info, utraps) || - TI_EXEC_DOMAIN != offsetof(struct thread_info, exec_domain) || - TI_REG_WINDOW != offsetof(struct thread_info, reg_window) || - TI_RWIN_SPTRS != offsetof(struct thread_info, rwbuf_stkptrs) || - TI_GSR != offsetof(struct thread_info, gsr) || - TI_XFSR != offsetof(struct thread_info, xfsr) || - TI_USER_CNTD0 != offsetof(struct thread_info, user_cntd0) || - TI_USER_CNTD1 != offsetof(struct thread_info, user_cntd1) || - TI_KERN_CNTD0 != offsetof(struct thread_info, kernel_cntd0) || - TI_KERN_CNTD1 != offsetof(struct thread_info, kernel_cntd1) || - TI_PCR != offsetof(struct thread_info, pcr_reg) || - TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) || - TI_NEW_CHILD != offsetof(struct thread_info, new_child) || - TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) || - TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) || - TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) || - TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) || - TI_FPREGS != offsetof(struct thread_info, fpregs) || - (TI_FPREGS & (64 - 1))) - thread_info_offsets_are_bolixed_dave(); - - if (TRAP_PER_CPU_THREAD != offsetof(struct trap_per_cpu, thread) || - (TRAP_PER_CPU_PGD_PADDR != - offsetof(struct trap_per_cpu, pgd_paddr)) || - (TRAP_PER_CPU_CPU_MONDO_PA != - offsetof(struct trap_per_cpu, cpu_mondo_pa)) || - (TRAP_PER_CPU_DEV_MONDO_PA != - offsetof(struct trap_per_cpu, dev_mondo_pa)) || - (TRAP_PER_CPU_RESUM_MONDO_PA != - offsetof(struct trap_per_cpu, resum_mondo_pa)) || - (TRAP_PER_CPU_RESUM_KBUF_PA != - offsetof(struct trap_per_cpu, resum_kernel_buf_pa)) || - (TRAP_PER_CPU_NONRESUM_MONDO_PA != - offsetof(struct trap_per_cpu, nonresum_mondo_pa)) || - (TRAP_PER_CPU_NONRESUM_KBUF_PA != - offsetof(struct trap_per_cpu, nonresum_kernel_buf_pa)) || - (TRAP_PER_CPU_FAULT_INFO != - offsetof(struct trap_per_cpu, fault_info)) || - (TRAP_PER_CPU_CPU_MONDO_BLOCK_PA != - offsetof(struct trap_per_cpu, cpu_mondo_block_pa)) || - (TRAP_PER_CPU_CPU_LIST_PA != - offsetof(struct trap_per_cpu, cpu_list_pa)) || - (TRAP_PER_CPU_TSB_HUGE != - offsetof(struct trap_per_cpu, tsb_huge)) || - (TRAP_PER_CPU_TSB_HUGE_TEMP != - offsetof(struct trap_per_cpu, tsb_huge_temp)) || - (TRAP_PER_CPU_IRQ_WORKLIST_PA != - offsetof(struct trap_per_cpu, irq_worklist_pa)) || - (TRAP_PER_CPU_CPU_MONDO_QMASK != - offsetof(struct trap_per_cpu, cpu_mondo_qmask)) || - (TRAP_PER_CPU_DEV_MONDO_QMASK != - offsetof(struct trap_per_cpu, dev_mondo_qmask)) || - (TRAP_PER_CPU_RESUM_QMASK != - offsetof(struct trap_per_cpu, resum_qmask)) || - (TRAP_PER_CPU_NONRESUM_QMASK != - offsetof(struct trap_per_cpu, nonresum_qmask))) - trap_per_cpu_offsets_are_bolixed_dave(); - - if ((TSB_CONFIG_TSB != - offsetof(struct tsb_config, tsb)) || - (TSB_CONFIG_RSS_LIMIT != - offsetof(struct tsb_config, tsb_rss_limit)) || - (TSB_CONFIG_NENTRIES != - offsetof(struct tsb_config, tsb_nentries)) || - (TSB_CONFIG_REG_VAL != - offsetof(struct tsb_config, tsb_reg_val)) || - (TSB_CONFIG_MAP_VADDR != - offsetof(struct tsb_config, tsb_map_vaddr)) || - (TSB_CONFIG_MAP_PTE != - offsetof(struct tsb_config, tsb_map_pte))) - tsb_config_offsets_are_bolixed_dave(); - - /* Attach to the address space of init_task. On SMP we - * do this in smp.c:smp_callin for other cpus. - */ - atomic_inc(&init_mm.mm_count); - current->active_mm = &init_mm; -} |