Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
[safe/jmp/linux-2.6] / arch / ia64 / kernel / mca.c
index bab1de2..378b483 100644 (file)
@@ -850,7 +850,7 @@ EXPORT_SYMBOL(ia64_unreg_MCA_extension);
 
 
 static inline void
-copy_reg(const u64 *fr, u64 fnat, u64 *tr, u64 *tnat)
+copy_reg(const u64 *fr, u64 fnat, unsigned long *tr, unsigned long *tnat)
 {
        u64 fslot, tslot, nat;
        *tr = *fr;
@@ -887,6 +887,65 @@ ia64_mca_modify_comm(const struct task_struct *previous_current)
        memcpy(current->comm, comm, sizeof(current->comm));
 }
 
+static void
+finish_pt_regs(struct pt_regs *regs, struct ia64_sal_os_state *sos,
+               unsigned long *nat)
+{
+       const pal_min_state_area_t *ms = sos->pal_min_state;
+       const u64 *bank;
+
+       /* If ipsr.ic then use pmsa_{iip,ipsr,ifs}, else use
+        * pmsa_{xip,xpsr,xfs}
+        */
+       if (ia64_psr(regs)->ic) {
+               regs->cr_iip = ms->pmsa_iip;
+               regs->cr_ipsr = ms->pmsa_ipsr;
+               regs->cr_ifs = ms->pmsa_ifs;
+       } else {
+               regs->cr_iip = ms->pmsa_xip;
+               regs->cr_ipsr = ms->pmsa_xpsr;
+               regs->cr_ifs = ms->pmsa_xfs;
+
+               sos->iip = ms->pmsa_iip;
+               sos->ipsr = ms->pmsa_ipsr;
+               sos->ifs = ms->pmsa_ifs;
+       }
+       regs->pr = ms->pmsa_pr;
+       regs->b0 = ms->pmsa_br0;
+       regs->ar_rsc = ms->pmsa_rsc;
+       copy_reg(&ms->pmsa_gr[1-1], ms->pmsa_nat_bits, &regs->r1, nat);
+       copy_reg(&ms->pmsa_gr[2-1], ms->pmsa_nat_bits, &regs->r2, nat);
+       copy_reg(&ms->pmsa_gr[3-1], ms->pmsa_nat_bits, &regs->r3, nat);
+       copy_reg(&ms->pmsa_gr[8-1], ms->pmsa_nat_bits, &regs->r8, nat);
+       copy_reg(&ms->pmsa_gr[9-1], ms->pmsa_nat_bits, &regs->r9, nat);
+       copy_reg(&ms->pmsa_gr[10-1], ms->pmsa_nat_bits, &regs->r10, nat);
+       copy_reg(&ms->pmsa_gr[11-1], ms->pmsa_nat_bits, &regs->r11, nat);
+       copy_reg(&ms->pmsa_gr[12-1], ms->pmsa_nat_bits, &regs->r12, nat);
+       copy_reg(&ms->pmsa_gr[13-1], ms->pmsa_nat_bits, &regs->r13, nat);
+       copy_reg(&ms->pmsa_gr[14-1], ms->pmsa_nat_bits, &regs->r14, nat);
+       copy_reg(&ms->pmsa_gr[15-1], ms->pmsa_nat_bits, &regs->r15, nat);
+       if (ia64_psr(regs)->bn)
+               bank = ms->pmsa_bank1_gr;
+       else
+               bank = ms->pmsa_bank0_gr;
+       copy_reg(&bank[16-16], ms->pmsa_nat_bits, &regs->r16, nat);
+       copy_reg(&bank[17-16], ms->pmsa_nat_bits, &regs->r17, nat);
+       copy_reg(&bank[18-16], ms->pmsa_nat_bits, &regs->r18, nat);
+       copy_reg(&bank[19-16], ms->pmsa_nat_bits, &regs->r19, nat);
+       copy_reg(&bank[20-16], ms->pmsa_nat_bits, &regs->r20, nat);
+       copy_reg(&bank[21-16], ms->pmsa_nat_bits, &regs->r21, nat);
+       copy_reg(&bank[22-16], ms->pmsa_nat_bits, &regs->r22, nat);
+       copy_reg(&bank[23-16], ms->pmsa_nat_bits, &regs->r23, nat);
+       copy_reg(&bank[24-16], ms->pmsa_nat_bits, &regs->r24, nat);
+       copy_reg(&bank[25-16], ms->pmsa_nat_bits, &regs->r25, nat);
+       copy_reg(&bank[26-16], ms->pmsa_nat_bits, &regs->r26, nat);
+       copy_reg(&bank[27-16], ms->pmsa_nat_bits, &regs->r27, nat);
+       copy_reg(&bank[28-16], ms->pmsa_nat_bits, &regs->r28, nat);
+       copy_reg(&bank[29-16], ms->pmsa_nat_bits, &regs->r29, nat);
+       copy_reg(&bank[30-16], ms->pmsa_nat_bits, &regs->r30, nat);
+       copy_reg(&bank[31-16], ms->pmsa_nat_bits, &regs->r31, nat);
+}
+
 /* On entry to this routine, we are running on the per cpu stack, see
  * mca_asm.h.  The original stack has not been touched by this event.  Some of
  * the original stack's registers will be in the RBS on this stack.  This stack
@@ -914,14 +973,13 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
        struct switch_stack *old_sw;
        unsigned size = sizeof(struct pt_regs) +
                        sizeof(struct switch_stack) + 16;
-       u64 *old_bspstore, *old_bsp;
-       u64 *new_bspstore, *new_bsp;
-       u64 old_unat, old_rnat, new_rnat, nat;
+       unsigned long *old_bspstore, *old_bsp;
+       unsigned long *new_bspstore, *new_bsp;
+       unsigned long old_unat, old_rnat, new_rnat, nat;
        u64 slots, loadrs = regs->loadrs;
        u64 r12 = ms->pmsa_gr[12-1], r13 = ms->pmsa_gr[13-1];
        u64 ar_bspstore = regs->ar_bspstore;
        u64 ar_bsp = regs->ar_bspstore + (loadrs >> 16);
-       const u64 *bank;
        const char *msg;
        int cpu = smp_processor_id();
 
@@ -968,10 +1026,10 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
         * loadrs for the new stack and save it in the new pt_regs, where
         * ia64_old_stack() can get it.
         */
-       old_bspstore = (u64 *)ar_bspstore;
-       old_bsp = (u64 *)ar_bsp;
+       old_bspstore = (unsigned long *)ar_bspstore;
+       old_bsp = (unsigned long *)ar_bsp;
        slots = ia64_rse_num_regs(old_bspstore, old_bsp);
-       new_bspstore = (u64 *)((u64)current + IA64_RBS_OFFSET);
+       new_bspstore = (unsigned long *)((u64)current + IA64_RBS_OFFSET);
        new_bsp = ia64_rse_skip_regs(new_bspstore, slots);
        regs->loadrs = (new_bsp - new_bspstore) * 8 << 16;
 
@@ -1024,54 +1082,9 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
        p = (char *)r12 - sizeof(*regs);
        old_regs = (struct pt_regs *)p;
        memcpy(old_regs, regs, sizeof(*regs));
-       /* If ipsr.ic then use pmsa_{iip,ipsr,ifs}, else use
-        * pmsa_{xip,xpsr,xfs}
-        */
-       if (ia64_psr(regs)->ic) {
-               old_regs->cr_iip = ms->pmsa_iip;
-               old_regs->cr_ipsr = ms->pmsa_ipsr;
-               old_regs->cr_ifs = ms->pmsa_ifs;
-       } else {
-               old_regs->cr_iip = ms->pmsa_xip;
-               old_regs->cr_ipsr = ms->pmsa_xpsr;
-               old_regs->cr_ifs = ms->pmsa_xfs;
-       }
-       old_regs->pr = ms->pmsa_pr;
-       old_regs->b0 = ms->pmsa_br0;
        old_regs->loadrs = loadrs;
-       old_regs->ar_rsc = ms->pmsa_rsc;
        old_unat = old_regs->ar_unat;
-       copy_reg(&ms->pmsa_gr[1-1], ms->pmsa_nat_bits, &old_regs->r1, &old_unat);
-       copy_reg(&ms->pmsa_gr[2-1], ms->pmsa_nat_bits, &old_regs->r2, &old_unat);
-       copy_reg(&ms->pmsa_gr[3-1], ms->pmsa_nat_bits, &old_regs->r3, &old_unat);
-       copy_reg(&ms->pmsa_gr[8-1], ms->pmsa_nat_bits, &old_regs->r8, &old_unat);
-       copy_reg(&ms->pmsa_gr[9-1], ms->pmsa_nat_bits, &old_regs->r9, &old_unat);
-       copy_reg(&ms->pmsa_gr[10-1], ms->pmsa_nat_bits, &old_regs->r10, &old_unat);
-       copy_reg(&ms->pmsa_gr[11-1], ms->pmsa_nat_bits, &old_regs->r11, &old_unat);
-       copy_reg(&ms->pmsa_gr[12-1], ms->pmsa_nat_bits, &old_regs->r12, &old_unat);
-       copy_reg(&ms->pmsa_gr[13-1], ms->pmsa_nat_bits, &old_regs->r13, &old_unat);
-       copy_reg(&ms->pmsa_gr[14-1], ms->pmsa_nat_bits, &old_regs->r14, &old_unat);
-       copy_reg(&ms->pmsa_gr[15-1], ms->pmsa_nat_bits, &old_regs->r15, &old_unat);
-       if (ia64_psr(old_regs)->bn)
-               bank = ms->pmsa_bank1_gr;
-       else
-               bank = ms->pmsa_bank0_gr;
-       copy_reg(&bank[16-16], ms->pmsa_nat_bits, &old_regs->r16, &old_unat);
-       copy_reg(&bank[17-16], ms->pmsa_nat_bits, &old_regs->r17, &old_unat);
-       copy_reg(&bank[18-16], ms->pmsa_nat_bits, &old_regs->r18, &old_unat);
-       copy_reg(&bank[19-16], ms->pmsa_nat_bits, &old_regs->r19, &old_unat);
-       copy_reg(&bank[20-16], ms->pmsa_nat_bits, &old_regs->r20, &old_unat);
-       copy_reg(&bank[21-16], ms->pmsa_nat_bits, &old_regs->r21, &old_unat);
-       copy_reg(&bank[22-16], ms->pmsa_nat_bits, &old_regs->r22, &old_unat);
-       copy_reg(&bank[23-16], ms->pmsa_nat_bits, &old_regs->r23, &old_unat);
-       copy_reg(&bank[24-16], ms->pmsa_nat_bits, &old_regs->r24, &old_unat);
-       copy_reg(&bank[25-16], ms->pmsa_nat_bits, &old_regs->r25, &old_unat);
-       copy_reg(&bank[26-16], ms->pmsa_nat_bits, &old_regs->r26, &old_unat);
-       copy_reg(&bank[27-16], ms->pmsa_nat_bits, &old_regs->r27, &old_unat);
-       copy_reg(&bank[28-16], ms->pmsa_nat_bits, &old_regs->r28, &old_unat);
-       copy_reg(&bank[29-16], ms->pmsa_nat_bits, &old_regs->r29, &old_unat);
-       copy_reg(&bank[30-16], ms->pmsa_nat_bits, &old_regs->r30, &old_unat);
-       copy_reg(&bank[31-16], ms->pmsa_nat_bits, &old_regs->r31, &old_unat);
+       finish_pt_regs(old_regs, sos, &old_unat);
 
        /* Next stack a struct switch_stack.  mca_asm.S built a partial
         * switch_stack, copy it and fill in the blanks using pt_regs and
@@ -1141,6 +1154,8 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
 no_mod:
        mprintk(KERN_INFO "cpu %d, %s %s, original stack not modified\n",
                        smp_processor_id(), type, msg);
+       old_unat = regs->ar_unat;
+       finish_pt_regs(regs, sos, &old_unat);
        return previous_current;
 }
 
@@ -1210,9 +1225,12 @@ static void mca_insert_tr(u64 iord)
        unsigned long psr;
        int cpu = smp_processor_id();
 
+       if (!ia64_idtrs[cpu])
+               return;
+
        psr = ia64_clear_ic();
        for (i = IA64_TR_ALLOC_BASE; i < IA64_TR_ALLOC_MAX; i++) {
-               p = &__per_cpu_idtrs[cpu][iord-1][i];
+               p = ia64_idtrs[cpu] + (iord - 1) * IA64_TR_ALLOC_MAX;
                if (p->pte & 0x1) {
                        old_rr = ia64_get_rr(p->ifa);
                        if (old_rr != p->rr) {
@@ -1456,9 +1474,9 @@ ia64_mca_cmc_int_caller(int cmc_irq, void *arg)
 
        ia64_mca_cmc_int_handler(cmc_irq, arg);
 
-       for (++cpuid ; cpuid < NR_CPUS && !cpu_online(cpuid) ; cpuid++);
+       cpuid = cpumask_next(cpuid+1, cpu_online_mask);
 
-       if (cpuid < NR_CPUS) {
+       if (cpuid < nr_cpu_ids) {
                platform_send_ipi(cpuid, IA64_CMCP_VECTOR, IA64_IPI_DM_INT, 0);
        } else {
                /* If no log record, switch out of polling mode */
@@ -1525,7 +1543,7 @@ ia64_mca_cpe_int_caller(int cpe_irq, void *arg)
 
        ia64_mca_cpe_int_handler(cpe_irq, arg);
 
-       for (++cpuid ; cpuid < NR_CPUS && !cpu_online(cpuid) ; cpuid++);
+       cpuid = cpumask_next(cpuid+1, cpu_online_mask);
 
        if (cpuid < NR_CPUS) {
                platform_send_ipi(cpuid, IA64_CPEP_VECTOR, IA64_IPI_DM_INT, 0);
@@ -1682,14 +1700,25 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
 
        if (!sos->monarch) {
                ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_INIT;
+
+#ifdef CONFIG_KEXEC
+               while (monarch_cpu == -1 && !atomic_read(&kdump_in_progress))
+                       udelay(1000);
+#else
                while (monarch_cpu == -1)
-                      cpu_relax();     /* spin until monarch enters */
+                       cpu_relax();    /* spin until monarch enters */
+#endif
 
                NOTIFY_INIT(DIE_INIT_SLAVE_ENTER, regs, (long)&nd, 1);
                NOTIFY_INIT(DIE_INIT_SLAVE_PROCESS, regs, (long)&nd, 1);
 
+#ifdef CONFIG_KEXEC
+               while (monarch_cpu != -1 && !atomic_read(&kdump_in_progress))
+                       udelay(1000);
+#else
                while (monarch_cpu != -1)
-                      cpu_relax();     /* spin until monarch leaves */
+                       cpu_relax();    /* spin until monarch leaves */
+#endif
 
                NOTIFY_INIT(DIE_INIT_SLAVE_LEAVE, regs, (long)&nd, 1);
 
@@ -1829,8 +1858,7 @@ ia64_mca_cpu_init(void *cpu_data)
                        data = mca_bootmem();
                        first_time = 0;
                } else
-                       data = page_address(alloc_pages_node(numa_node_id(),
-                                       GFP_KERNEL, get_order(sz)));
+                       data = __get_free_pages(GFP_KERNEL, get_order(sz));
                if (!data)
                        panic("Could not allocate MCA memory for cpu %d\n",
                                        cpu);
@@ -1918,9 +1946,9 @@ ia64_mca_init(void)
        ia64_fptr_t *init_hldlr_ptr_slave = (ia64_fptr_t *)ia64_os_init_dispatch_slave;
        ia64_fptr_t *mca_hldlr_ptr = (ia64_fptr_t *)ia64_os_mca_dispatch;
        int i;
-       s64 rc;
+       long rc;
        struct ia64_sal_retval isrv;
-       u64 timeout = IA64_MCA_RENDEZ_TIMEOUT;  /* platform specific */
+       unsigned long timeout = IA64_MCA_RENDEZ_TIMEOUT; /* platform specific */
        static struct notifier_block default_init_monarch_nb = {
                .notifier_call = default_monarch_init_process,
                .priority = 0/* we need to notified last */
@@ -2093,7 +2121,7 @@ ia64_mca_late_init(void)
        cpe_poll_timer.function = ia64_mca_cpe_poll;
 
        {
-               irq_desc_t *desc;
+               struct irq_desc *desc;
                unsigned int irq;
 
                if (cpe_vector >= 0) {