diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/tlb_64.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/tlb_uv.c | 704 |
2 files changed, 378 insertions, 328 deletions
diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c index fc132113bdab..5039d0f097a2 100644 --- a/arch/x86/kernel/tlb_64.c +++ b/arch/x86/kernel/tlb_64.c @@ -165,7 +165,7 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm, cpumask_t cpumask = *cpumaskp; if (is_uv_system() && uv_flush_tlb_others(&cpumask, mm, va)) - return; + return; /* Caller has disabled preemption */ sender = smp_processor_id() % NUM_INVALIDATE_TLB_VECTORS; diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 28e7c68d9d78..f7bc6a6fbe49 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -10,18 +10,20 @@ #include <linux/proc_fs.h> #include <linux/kernel.h> -#include <asm/mach-bigsmp/mach_apic.h> #include <asm/mmu_context.h> #include <asm/idle.h> #include <asm/genapic.h> #include <asm/uv/uv_hub.h> #include <asm/uv/uv_mmrs.h> #include <asm/uv/uv_bau.h> +#include <asm/tsc.h> -struct bau_control **uv_bau_table_bases; -static int uv_bau_retry_limit; -static int uv_nshift; /* position of pnode (which is nasid>>1) */ -static unsigned long uv_mmask; +#include <mach_apic.h> + +static struct bau_control **uv_bau_table_bases __read_mostly; +static int uv_bau_retry_limit __read_mostly; +static int uv_nshift __read_mostly; /* position of pnode (which is nasid>>1) */ +static unsigned long uv_mmask __read_mostly; char *status_table[] = { "IDLE", @@ -41,19 +43,18 @@ DEFINE_PER_CPU(struct bau_control, bau_control); * clear of the Timeout bit (as well) will free the resource. No reply will * be sent (the hardware will only do one reply per message). */ -static void -uv_reply_to_message(int resource, +static void uv_reply_to_message(int resource, struct bau_payload_queue_entry *msg, struct bau_msg_status *msp) { - int fw; + unsigned long dw; - fw = (1 << (resource + UV_SW_ACK_NPENDING)) | (1 << resource); + dw = (1 << (resource + UV_SW_ACK_NPENDING)) | (1 << resource); msg->replied_to = 1; msg->sw_ack_vector = 0; if (msp) msp->seen_by.bits = 0; - uv_write_local_mmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, fw); + uv_write_local_mmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, dw); return; } @@ -61,8 +62,7 @@ uv_reply_to_message(int resource, * Do all the things a cpu should do for a TLB shootdown message. * Other cpu's may come here at the same time for this message. */ -static void -uv_bau_process_message(struct bau_payload_queue_entry *msg, +static void uv_bau_process_message(struct bau_payload_queue_entry *msg, int msg_slot, int sw_ack_slot) { int cpu; @@ -103,8 +103,7 @@ uv_bau_process_message(struct bau_payload_queue_entry *msg, * * Returns the number of cpu's that have not responded. */ -static int -uv_examine_destinations(struct bau_target_nodemask *distribution) +static int uv_examine_destinations(struct bau_target_nodemask *distribution) { int sender; int i; @@ -118,34 +117,161 @@ uv_examine_destinations(struct bau_target_nodemask *distribution) sender = smp_processor_id(); for (i = 0; i < (sizeof(struct bau_target_nodemask) * BITSPERBYTE); i++) { - if (bau_node_isset(i, distribution)) { - bau_tablesp = uv_bau_table_bases[i]; - for (msg = bau_tablesp->va_queue_first, j = 0; - j < DESTINATION_PAYLOAD_QUEUE_SIZE; msg++, j++) { - if ((msg->sending_cpu == sender) && - (!msg->replied_to)) { - msp = bau_tablesp->msg_statuses + j; - printk(KERN_DEBUG + if (!bau_node_isset(i, distribution)) + continue; + bau_tablesp = uv_bau_table_bases[i]; + for (msg = bau_tablesp->va_queue_first, j = 0; + j < DESTINATION_PAYLOAD_QUEUE_SIZE; msg++, j++) { + if ((msg->sending_cpu == sender) && + (!msg->replied_to)) { + msp = bau_tablesp->msg_statuses + j; + printk(KERN_DEBUG "blade %d: address:%#lx %d of %d, not cpu(s): ", - i, msg->address, - msg->acknowledge_count, - msg->number_of_cpus); - for (k = 0; k < msg->number_of_cpus; - k++) { - if (!((long)1 << k & msp-> - seen_by.bits)) { - count++; - printk("%d ", k); - } + i, msg->address, + msg->acknowledge_count, + msg->number_of_cpus); + for (k = 0; k < msg->number_of_cpus; + k++) { + if (!((long)1 << k & msp-> + seen_by.bits)) { + count++; + printk("%d ", k); } - printk("\n"); } + printk("\n"); } } } return count; } +/* + * wait for completion of a broadcast message + * + * return COMPLETE, RETRY or GIVEUP + */ +static int uv_wait_completion(struct bau_activation_descriptor *bau_desc, + unsigned long mmr_offset, int right_shift) +{ + int exams = 0; + long destination_timeouts = 0; + long source_timeouts = 0; + unsigned long descriptor_status; + + while ((descriptor_status = (((unsigned long) + uv_read_local_mmr(mmr_offset) >> + right_shift) & UV_ACT_STATUS_MASK)) != + DESC_STATUS_IDLE) { + if (descriptor_status == DESC_STATUS_SOURCE_TIMEOUT) { + source_timeouts++; + if (source_timeouts > SOURCE_TIMEOUT_LIMIT) + source_timeouts = 0; + __get_cpu_var(ptcstats).s_retry++; + return FLUSH_RETRY; + } + /* + * spin here looking for progress at the destinations + */ + if (descriptor_status == DESC_STATUS_DESTINATION_TIMEOUT) { + destination_timeouts++; + if (destination_timeouts > DESTINATION_TIMEOUT_LIMIT) { + /* + * returns number of cpus not responding + */ + if (uv_examine_destinations + (&bau_desc->distribution) == 0) { + __get_cpu_var(ptcstats).d_retry++; + return FLUSH_RETRY; + } + exams++; + if (exams >= uv_bau_retry_limit) { + printk(KERN_DEBUG + "uv_flush_tlb_others"); + printk("giving up on cpu %d\n", + smp_processor_id()); + return FLUSH_GIVEUP; + } + /* + * delays can hang the simulator + udelay(1000); + */ + destination_timeouts = 0; + } + } + } + return FLUSH_COMPLETE; +} + +/** + * uv_flush_send_and_wait + * + * Send a broadcast and wait for a broadcast message to complete. + * + * The cpumaskp mask contains the cpus the broadcast was sent to. + * + * Returns 1 if all remote flushing was done. The mask is zeroed. + * Returns 0 if some remote flushing remains to be done. The mask is left + * unchanged. + */ +int uv_flush_send_and_wait(int cpu, int this_blade, + struct bau_activation_descriptor *bau_desc, cpumask_t *cpumaskp) +{ + int completion_status = 0; + int right_shift; + int bit; + int blade; + int tries = 0; + unsigned long index; + unsigned long mmr_offset; + cycles_t time1; + cycles_t time2; + + if (cpu < UV_CPUS_PER_ACT_STATUS) { + mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0; + right_shift = cpu * UV_ACT_STATUS_SIZE; + } else { + mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1; + right_shift = + ((cpu - UV_CPUS_PER_ACT_STATUS) * UV_ACT_STATUS_SIZE); + } + time1 = get_cycles(); + do { + tries++; + index = ((unsigned long) + 1 << UVH_LB_BAU_SB_ACTIVATION_CONTROL_PUSH_SHFT) | cpu; + uv_write_local_mmr(UVH_LB_BAU_SB_ACTIVATION_CONTROL, index); + completion_status = uv_wait_completion(bau_desc, mmr_offset, + right_shift); + } while (completion_status == FLUSH_RETRY); + time2 = get_cycles(); + __get_cpu_var(ptcstats).sflush += (time2 - time1); + if (tries > 1) + __get_cpu_var(ptcstats).retriesok++; + + if (completion_status == FLUSH_GIVEUP) { + /* + * Cause the caller to do an IPI-style TLB shootdown on + * the cpu's, all of which are still in the mask. + */ + __get_cpu_var(ptcstats).ptc_i++; + return 0; + } + + /* + * Success, so clear the remote cpu's from the mask so we don't + * use the IPI method of shootdown on them. + */ + for_each_cpu_mask(bit, *cpumaskp) { + blade = uv_cpu_to_blade_id(bit); + if (blade == this_blade) + continue; + cpu_clear(bit, *cpumaskp); + } + if (!cpus_empty(*cpumaskp)) + return 0; + return 1; +} + /** * uv_flush_tlb_others - globally purge translation cache of a virtual * address or all TLB's @@ -164,30 +290,25 @@ uv_examine_destinations(struct bau_target_nodemask *distribution) * * The cpumaskp is converted into a nodemask of the nodes containing * the cpus. + * + * Returns 1 if all remote flushing was done. + * Returns 0 if some remote flushing remains to be done. */ -int -uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm, unsigned long va) +int uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm, + unsigned long va) { int i; + int bit; int blade; int cpu; - int bit; - int right_shift; int this_blade; - int exams = 0; - int tries = 0; - long source_timeouts = 0; - long destination_timeouts = 0; - unsigned long index; - unsigned long mmr_offset; - unsigned long descriptor_status; + int locals = 0; struct bau_activation_descriptor *bau_desc; - ktime_t time1, time2; cpu = uv_blade_processor_id(); this_blade = uv_numa_blade_id(); bau_desc = __get_cpu_var(bau_control).descriptor_base; - bau_desc += (UV_ITEMS_PER_DESCRIPTOR * cpu); + bau_desc += UV_ITEMS_PER_DESCRIPTOR * cpu; bau_nodes_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE); @@ -196,96 +317,29 @@ uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm, unsigned long va) blade = uv_cpu_to_blade_id(bit); if (blade > (UV_DISTRIBUTION_SIZE - 1)) BUG(); - if (blade == this_blade) + if (blade == this_blade) { + locals++; continue; + } bau_node_set(blade, &bau_desc->distribution); - /* leave the bits for the remote cpu's in the mask until - success; on failure we fall back to the IPI method */ i++; } - if (i == 0) - goto none_to_flush; + if (i == 0) { + /* + * no off_node flushing; return status for local node + */ + if (locals) + return 0; + else + return 1; + } __get_cpu_var(ptcstats).requestor++; __get_cpu_var(ptcstats).ntargeted += i; bau_desc->payload.address = va; bau_desc->payload.sending_cpu = smp_processor_id(); - if (cpu < UV_CPUS_PER_ACT_STATUS) { - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0; - right_shift = cpu * UV_ACT_STATUS_SIZE; - } else { - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1; - right_shift = - ((cpu - UV_CPUS_PER_ACT_STATUS) * UV_ACT_STATUS_SIZE); - } - time1 = ktime_get(); - -retry: - tries++; - index = ((unsigned long) - 1 << UVH_LB_BAU_SB_ACTIVATION_CONTROL_PUSH_SHFT) | cpu; - uv_write_local_mmr(UVH_LB_BAU_SB_ACTIVATION_CONTROL, index); - - while ((descriptor_status = (((unsigned long) - uv_read_local_mmr(mmr_offset) >> - right_shift) & UV_ACT_STATUS_MASK)) != - DESC_STATUS_IDLE) { - if (descriptor_status == DESC_STATUS_SOURCE_TIMEOUT) { - source_timeouts++; - if (source_timeouts > SOURCE_TIMEOUT_LIMIT) - source_timeouts = 0; - __get_cpu_var(ptcstats).s_retry++; - goto retry; - } - /* spin here looking for progress at the destinations */ - if (descriptor_status == DESC_STATUS_DESTINATION_TIMEOUT) { - destination_timeouts++; - if (destination_timeouts > DESTINATION_TIMEOUT_LIMIT) { - /* returns # of cpus not responding */ - if (uv_examine_destinations - (&bau_desc->distribution) == 0) { - __get_cpu_var(ptcstats).d_retry++; - goto retry; - } - exams++; - if (exams >= uv_bau_retry_limit) { - printk(KERN_DEBUG - "uv_flush_tlb_others"); - printk("giving up on cpu %d\n", - smp_processor_id()); - goto unsuccessful; - } - /* delays can hang up the simulator - udelay(1000); - */ - destination_timeouts = 0; - } - } - } - if (tries > 1) - __get_cpu_var(ptcstats).retriesok++; - /* on success, clear the remote cpu's from the mask so we don't - use the IPI method of shootdown on them */ - for_each_cpu_mask(bit, *cpumaskp) { - blade = uv_cpu_to_blade_id(bit); - if (blade == this_blade) - continue; - cpu_clear(bit, *cpumaskp); - } - -unsuccessful: - time2 = ktime_get(); - __get_cpu_var(ptcstats).sflush_ns += (time2.tv64 - time1.tv64); - -none_to_flush: - if (cpus_empty(*cpumaskp)) - return 1; - - /* Cause the caller to do an IPI-style TLB shootdown on - the cpu's still in the mask */ - __get_cpu_var(ptcstats).ptc_i++; - return 0; + return uv_flush_send_and_wait(cpu, this_blade, bau_desc, cpumaskp); } /* @@ -302,13 +356,12 @@ none_to_flush: * (the resource will not be freed until noninterruptable cpus see this * interrupt; hardware will timeout the s/w ack and reply ERROR) */ -void -uv_bau_message_interrupt(struct pt_regs *regs) +void uv_bau_message_interrupt(struct pt_regs *regs) { struct bau_payload_queue_entry *pqp; struct bau_payload_queue_entry *msg; struct pt_regs *old_regs = set_irq_regs(regs); - ktime_t time1, time2; + cycles_t time1, time2; int msg_slot; int sw_ack_slot; int fw; @@ -319,7 +372,7 @@ uv_bau_message_interrupt(struct pt_regs *regs) exit_idle(); irq_enter(); - time1 = ktime_get(); + time1 = get_cycles(); local_pnode = uv_blade_to_pnode(uv_numa_blade_id()); @@ -343,16 +396,15 @@ uv_bau_message_interrupt(struct pt_regs *regs) else if (count > 1) __get_cpu_var(ptcstats).multmsg++; - time2 = ktime_get(); - __get_cpu_var(ptcstats).dflush_ns += (time2.tv64 - time1.tv64); + time2 = get_cycles(); + __get_cpu_var(ptcstats).dflush += (time2 - time1); irq_exit(); set_irq_regs(old_regs); return; } -static void -uv_enable_timeouts(void) +static void uv_enable_timeouts(void) { int i; int blade; @@ -361,7 +413,6 @@ uv_enable_timeouts(void) int cur_cpu = 0; unsigned long apicid; - /* better if we had each_online_blade */ last_blade = -1; for_each_online_node(i) { blade = uv_node_to_blade_id(i); @@ -375,16 +426,14 @@ uv_enable_timeouts(void) return; } -static void * -uv_ptc_seq_start(struct seq_file *file, loff_t *offset) +static void *uv_ptc_seq_start(struct seq_file *file, loff_t *offset) { if (*offset < num_possible_cpus()) return offset; return NULL; } -static void * -uv_ptc_seq_next(struct seq_file *file, void *data, loff_t *offset) +static void *uv_ptc_seq_next(struct seq_file *file, void *data, loff_t *offset) { (*offset)++; if (*offset < num_possible_cpus()) @@ -392,8 +441,7 @@ uv_ptc_seq_next(struct seq_file *file, void *data, loff_t *offset) return NULL; } -static void -uv_ptc_seq_stop(struct seq_file *file, void *data) +static void uv_ptc_seq_stop(struct seq_file *file, void *data) { } @@ -401,8 +449,7 @@ uv_ptc_seq_stop(struct seq_file *file, void *data) * Display the statistics thru /proc * data points to the cpu number */ -static int -uv_ptc_seq_show(struct seq_file *file, void *data) +static int uv_ptc_seq_show(struct seq_file *file, void *data) { struct ptc_stats *stat; int cpu; @@ -413,7 +460,7 @@ uv_ptc_seq_show(struct seq_file *file, void *data) seq_printf(file, "# cpu requestor requestee one all sretry dretry ptc_i "); seq_printf(file, - "sw_ack sflush_us dflush_us sok dnomsg dmult starget\n"); + "sw_ack sflush dflush sok dnomsg dmult starget\n"); } if (cpu < num_possible_cpus() && cpu_online(cpu)) { stat = &per_cpu(ptcstats, cpu); @@ -425,7 +472,7 @@ uv_ptc_seq_show(struct seq_file *file, void *data) uv_read_global_mmr64(uv_blade_to_pnode (uv_cpu_to_blade_id(cpu)), UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE), - stat->sflush_ns / 1000, stat->dflush_ns / 1000, + stat->sflush, stat->dflush, stat->retriesok, stat->nomsg, stat->multmsg, stat->ntargeted); } @@ -437,8 +484,7 @@ uv_ptc_seq_show(struct seq_file *file, void *data) * 0: display meaning of the statistics * >0: retry limit */ -static ssize_t -uv_ptc_proc_write(struct file *file, const char __user *user, +static ssize_t uv_ptc_proc_write(struct file *file, const char __user *user, size_t count, loff_t *data) { long newmode; @@ -471,9 +517,9 @@ uv_ptc_proc_write(struct file *file, const char __user *user, printk(KERN_DEBUG "sw_ack: image of UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE\n"); printk(KERN_DEBUG - "sflush_us: microseconds spent in uv_flush_tlb_others()\n"); + "sflush_us: cycles spent in uv_flush_tlb_others()\n"); printk(KERN_DEBUG - "dflush_us: microseconds spent in handling flush requests\n"); + "dflush_us: cycles spent in handling flush requests\n"); printk(KERN_DEBUG "sok: successes on retry\n"); printk(KERN_DEBUG "dnomsg: interrupts with no message\n"); printk(KERN_DEBUG @@ -489,40 +535,33 @@ uv_ptc_proc_write(struct file *file, const char __user *user, } static const struct seq_operations uv_ptc_seq_ops = { - .start = uv_ptc_seq_start, - .next = uv_ptc_seq_next, - .stop = uv_ptc_seq_stop, - .show = uv_ptc_seq_show + .start = uv_ptc_seq_start, + .next = uv_ptc_seq_next, + .stop = uv_ptc_seq_stop, + .show = uv_ptc_seq_show }; -static int -uv_ptc_proc_open(struct inode *inode, struct file *file) +static int uv_ptc_proc_open(struct inode *inode, struct file *file) { return seq_open(file, &uv_ptc_seq_ops); } static const struct file_operations proc_uv_ptc_operations = { - .open = uv_ptc_proc_open, - .read = seq_read, - .write = uv_ptc_proc_write, - .llseek = seq_lseek, - .release = seq_release, + .open = uv_ptc_proc_open, + .read = seq_read, + .write = uv_ptc_proc_write, + .llseek = seq_lseek, + .release = seq_release, }; -static struct proc_dir_entry *proc_uv_ptc; - -static int __init -uv_ptc_init(void) +static int __init uv_ptc_init(void) { - static struct proc_dir_entry *sgi_proc_dir; - - sgi_proc_dir = NULL; + struct proc_dir_entry *proc_uv_ptc; if (!is_uv_system()) return 0; - sgi_proc_dir = proc_mkdir("sgi_uv", NULL); - if (!sgi_proc_dir) + if (!proc_mkdir("sgi_uv", NULL)) return -EINVAL; proc_uv_ptc = create_proc_entry(UV_PTC_BASENAME, 0444, NULL); @@ -535,202 +574,213 @@ uv_ptc_init(void) return 0; } -static void __exit -uv_ptc_exit(void) +/* + * begin the initialization of the per-blade control structures + */ +static struct bau_control * __init uv_table_bases_init(int blade, int node) { - remove_proc_entry(UV_PTC_BASENAME, NULL); + int i; + int *ip; + struct bau_msg_status *msp; + struct bau_control *bau_tablesp; + + bau_tablesp = + kmalloc_node(sizeof(struct bau_control), GFP_KERNEL, node); + if (!bau_tablesp) + BUG(); + bau_tablesp->msg_statuses = + kmalloc_node(sizeof(struct bau_msg_status) * + DESTINATION_PAYLOAD_QUEUE_SIZE, GFP_KERNEL, node); + if (!bau_tablesp->msg_statuses) + BUG(); + for (i = 0, msp = bau_tablesp->msg_statuses; + i < DESTINATION_PAYLOAD_QUEUE_SIZE; i++, msp++) { + bau_cpubits_clear(&msp->seen_by, (int) + uv_blade_nr_possible_cpus(blade)); + } + bau_tablesp->watching = + kmalloc_node(sizeof(int) * DESTINATION_NUM_RESOURCES, + GFP_KERNEL, node); + if (!bau_tablesp->watching) + BUG(); + for (i = 0, ip = bau_tablesp->watching; + i < DESTINATION_PAYLOAD_QUEUE_SIZE; i++, ip++) { + *ip = 0; + } + uv_bau_table_bases[blade] = bau_tablesp; + return bau_tablesp; } -module_init(uv_ptc_init); -module_exit(uv_ptc_exit); +/* + * finish the initialization of the per-blade control structures + */ +static void __init uv_table_bases_finish(int blade, int node, int cur_cpu, + struct bau_control *bau_tablesp, + struct bau_activation_descriptor *adp) +{ + int i; + struct bau_control *bcp; + + for (i = cur_cpu; i < (cur_cpu + uv_blade_nr_possible_cpus(blade)); + i++) { + bcp = (struct bau_control *)&per_cpu(bau_control, i); + bcp->bau_msg_head = bau_tablesp->va_queue_first; + bcp->va_queue_first = bau_tablesp->va_queue_first; + bcp->va_queue_last = bau_tablesp->va_queue_last; + bcp->watching = bau_tablesp->watching; + bcp->msg_statuses = bau_tablesp->msg_statuses; + bcp->descriptor_base = adp; + } +} /* - * Initialization of BAU-related structures + * initialize the sending side's sending buffers */ -int __init -uv_bau_init(void) +static struct bau_activation_descriptor * __init +uv_activation_descriptor_init(int node, int pnode) { int i; - int j; - int blade; - int nblades; - int *ip; - int pnode; - int last_blade; - int cur_cpu = 0; unsigned long pa; - unsigned long n; unsigned long m; + unsigned long n; unsigned long mmr_image; - unsigned long apicid; + struct bau_activation_descriptor *adp; + struct bau_activation_descriptor *ad2; + + adp = (struct bau_activation_descriptor *) + kmalloc_node(16384, GFP_KERNEL, node); + if (!adp) + BUG(); + pa = __pa((unsigned long)adp); + n = pa >> uv_nshift; + m = pa & uv_mmask; + mmr_image = uv_read_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE); + if (mmr_image) + uv_write_global_mmr64(pnode, (unsigned long) + UVH_LB_BAU_SB_DESCRIPTOR_BASE, + (n << UV_DESC_BASE_PNODE_SHIFT | m)); + for (i = 0, ad2 = adp; i < UV_ACTIVATION_DESCRIPTOR_SIZE; i++, ad2++) { + memset(ad2, 0, sizeof(struct bau_activation_descriptor)); + ad2->header.sw_ack_flag = 1; + ad2->header.base_dest_nodeid = + uv_blade_to_pnode(uv_cpu_to_blade_id(0)); + ad2->header.command = UV_NET_ENDPOINT_INTD; + ad2->header.int_both = 1; + /* + * all others need to be set to zero: + * fairness chaining multilevel count replied_to + */ + } + return adp; +} + +/* + * initialize the destination side's receiving buffers + */ +static struct bau_payload_queue_entry * __init uv_payload_queue_init(int node, + int pnode, struct bau_control *bau_tablesp) +{ char *cp; - struct bau_control *bau_tablesp; - struct bau_activation_descriptor *adp, *ad2; struct bau_payload_queue_entry *pqp; - struct bau_msg_status *msp; - struct bau_control *bcp; - if (!is_uv_system()) - return 0; + pqp = (struct bau_payload_queue_entry *) + kmalloc_node((DESTINATION_PAYLOAD_QUEUE_SIZE + 1) * + sizeof(struct bau_payload_queue_entry), + GFP_KERNEL, node); + if (!pqp) + BUG(); + cp = (char *)pqp + 31; + pqp = (struct bau_payload_queue_entry *)(((unsigned long)cp >> 5) << 5); + bau_tablesp->va_queue_first = pqp; + uv_write_global_mmr64(pnode, + UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST, + ((unsigned long)pnode << + UV_PAYLOADQ_PNODE_SHIFT) | + uv_physnodeaddr(pqp)); + uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL, + uv_physnodeaddr(pqp)); + bau_tablesp->va_queue_last = + pqp + (DESTINATION_PAYLOAD_QUEUE_SIZE - 1); + uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST, + (unsigned long) + uv_physnodeaddr(bau_tablesp->va_queue_last)); + memset(pqp, 0, sizeof(struct bau_payload_queue_entry) * + DESTINATION_PAYLOAD_QUEUE_SIZE); + return pqp; +} - uv_bau_retry_limit = 1; +/* + * Initialization of each UV blade's structures + */ +static int __init uv_init_blade(int blade, int node, int cur_cpu) +{ + int pnode; + unsigned long pa; + unsigned long apicid; + struct bau_activation_descriptor *adp; + struct bau_payload_queue_entry *pqp; + struct bau_control *bau_tablesp; - if ((sizeof(struct bau_local_cpumask) * BITSPERBYTE) < - MAX_CPUS_PER_NODE) { - printk(KERN_ERR - "uv_bau_init: bau_local_cpumask.bits too small\n"); - BUG(); + bau_tablesp = uv_table_bases_init(blade, node); + pnode = uv_blade_to_pnode(blade); + adp = uv_activation_descriptor_init(node, pnode); + pqp = uv_payload_queue_init(node, pnode, bau_tablesp); + uv_table_bases_finish(blade, node, cur_cpu, bau_tablesp, adp); + /* + * the below initialization can't be in firmware because the + * messaging IRQ will be determined by the OS + */ + apicid = per_cpu(x86_cpu_to_apicid, cur_cpu); + pa = uv_read_global_mmr64(pnode, UVH_BAU_DATA_CONFIG); + if ((pa & 0xff) != UV_BAU_MESSAGE) { + uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, + ((apicid << 32) | UV_BAU_MESSAGE)); } + return 0; +} + +/* + * Initialization of BAU-related structures + */ +static int __init uv_bau_init(void) +{ + int blade; + int node; + int nblades; + int last_blade; + int cur_cpu = 0; + + if (!is_uv_system()) + return 0; + uv_bau_retry_limit = 1; uv_nshift = uv_hub_info->n_val; uv_mmask = ((unsigned long)1 << uv_hub_info->n_val) - 1; nblades = 0; last_blade = -1; - for_each_online_node(i) { - blade = uv_node_to_blade_id(i); + for_each_online_node(node) { + blade = uv_node_to_blade_id(node); if (blade == last_blade) continue; last_blade = blade; nblades++; } - uv_bau_table_bases = (struct bau_control **) kmalloc(nblades * sizeof(struct bau_control *), GFP_KERNEL); if (!uv_bau_table_bases) BUG(); - - /* better if we had each_online_blade */ last_blade = -1; - for_each_online_node(i) { - blade = uv_node_to_blade_id(i); + for_each_online_node(node) { + blade = uv_node_to_blade_id(node); if (blade == last_blade) continue; last_blade = blade; - - bau_tablesp = - kmalloc_node(sizeof(struct bau_control), GFP_KERNEL, i); - if (!bau_tablesp) - BUG(); - - bau_tablesp->msg_statuses = - kmalloc_node(sizeof(struct bau_msg_status) * - DESTINATION_PAYLOAD_QUEUE_SIZE, GFP_KERNEL, i); - if (!bau_tablesp->msg_statuses) - BUG(); - for (j = 0, msp = bau_tablesp->msg_statuses; - j < DESTINATION_PAYLOAD_QUEUE_SIZE; j++, msp++) { - bau_cpubits_clear(&msp->seen_by, (int) - uv_blade_nr_possible_cpus(blade)); - } - - bau_tablesp->watching = - kmalloc_node(sizeof(int) * DESTINATION_NUM_RESOURCES, - GFP_KERNEL, i); - if (!bau_tablesp->watching) - BUG(); - for (j = 0, ip = bau_tablesp->watching; - j < DESTINATION_PAYLOAD_QUEUE_SIZE; j++, ip++) { - *ip = 0; - } - - uv_bau_table_bases[i] = bau_tablesp; - - pnode = uv_blade_to_pnode(blade); - - if (sizeof(struct bau_activation_descriptor) != 64) - BUG(); - - adp = (struct bau_activation_descriptor *) - kmalloc_node(16384, GFP_KERNEL, i); - if (!adp) - BUG(); - if ((unsigned long)adp & 0xfff) - BUG(); - pa = __pa((unsigned long)adp); - n = pa >> uv_nshift; - m = pa & uv_mmask; - - mmr_image = uv_read_global_mmr64(pnode, - UVH_LB_BAU_SB_DESCRIPTOR_BASE); - if (mmr_image) - uv_write_global_mmr64(pnode, (unsigned long) - UVH_LB_BAU_SB_DESCRIPTOR_BASE, - (n << UV_DESC_BASE_PNODE_SHIFT | - m)); - for (j = 0, ad2 = adp; j < UV_ACTIVATION_DESCRIPTOR_SIZE; - j++, ad2++) { - memset(ad2, 0, - sizeof(struct bau_activation_descriptor)); - ad2->header.sw_ack_flag = 1; - ad2->header.base_dest_nodeid = - uv_blade_to_pnode(uv_cpu_to_blade_id(0)); - ad2->header.command = UV_NET_ENDPOINT_INTD; - ad2->header.int_both = 1; - /* all others need to be set to zero: - fairness chaining multilevel count replied_to */ - } - - pqp = (struct bau_payload_queue_entry *) - kmalloc_node((DESTINATION_PAYLOAD_QUEUE_SIZE + 1) * - sizeof(struct bau_payload_queue_entry), - GFP_KERNEL, i); - if (!pqp) - BUG(); - if (sizeof(struct bau_payload_queue_entry) != 32) - BUG(); - if ((unsigned long)(&((struct bau_payload_queue_entry *)0)-> - sw_ack_vector) != 15) - BUG(); - - cp = (char *)pqp + 31; - pqp = (struct bau_payload_queue_entry *) - (((unsigned long)cp >> 5) << 5); - bau_tablesp->va_queue_first = pqp; - uv_write_global_mmr64(pnode, - UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST, - ((unsigned long)pnode << - UV_PAYLOADQ_PNODE_SHIFT) | - uv_physnodeaddr(pqp)); - uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL, - uv_physnodeaddr(pqp)); - bau_tablesp->va_queue_last = - pqp + (DESTINATION_PAYLOAD_QUEUE_SIZE - 1); - uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST, - (unsigned long) - uv_physnodeaddr(bau_tablesp-> - va_queue_last)); - memset(pqp, 0, sizeof(struct bau_payload_queue_entry) * - DESTINATION_PAYLOAD_QUEUE_SIZE); - - /* this initialization can't be in firmware because the - messaging IRQ will be determined by the OS */ - apicid = per_cpu(x86_cpu_to_apicid, cur_cpu); - pa = uv_read_global_mmr64(pnode, UVH_BAU_DATA_CONFIG); - if ((pa & 0xff) != UV_BAU_MESSAGE) { - uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, - ((apicid << 32) | - UV_BAU_MESSAGE)); - } - - for (j = cur_cpu; j < (cur_cpu + uv_blade_nr_possible_cpus(i)); - j++) { - bcp = (struct bau_control *)&per_cpu(bau_control, j); - bcp->bau_msg_head = bau_tablesp->va_queue_first; - bcp->va_queue_first = bau_tablesp->va_queue_first; - - bcp->va_queue_last = bau_tablesp->va_queue_last; - bcp->watching = bau_tablesp->watching; - bcp->msg_statuses = bau_tablesp->msg_statuses; - bcp->descriptor_base = adp; - } - cur_cpu += uv_blade_nr_possible_cpus(i); + uv_init_blade(blade, node, cur_cpu); + cur_cpu += uv_blade_nr_possible_cpus(blade); } - set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1); - uv_enable_timeouts(); - return 0; } - __initcall(uv_bau_init); +__initcall(uv_ptc_init); |
