#include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h>
#include <asm/uv/uv_bau.h>
-#include <asm/genapic.h>
+#include <asm/apic.h>
#include <asm/idle.h>
#include <asm/tsc.h>
#include <asm/irq_vectors.h>
-#include <mach_apic.h>
-
static struct bau_control **uv_bau_table_bases __read_mostly;
static int uv_bau_retry_limit __read_mostly;
-/* position of pnode (which is nasid>>1): */
-static int uv_nshift __read_mostly;
+/* base pnode in this partition */
+static int uv_partition_base_pnode __read_mostly;
static unsigned long uv_mmask __read_mostly;
static DEFINE_PER_CPU(struct bau_control, bau_control);
/*
+ * Determine the first node on a blade.
+ */
+static int __init blade_to_first_node(int blade)
+{
+ int node, b;
+
+ for_each_online_node(node) {
+ b = uv_node_to_blade_id(node);
+ if (blade == b)
+ return node;
+ }
+ return -1; /* shouldn't happen */
+}
+
+/*
+ * Determine the apicid of the first cpu on a blade.
+ */
+static int __init blade_to_first_apicid(int blade)
+{
+ int cpu;
+
+ for_each_present_cpu(cpu)
+ if (blade == uv_cpu_to_blade_id(cpu))
+ return per_cpu(x86_cpu_to_apicid, cpu);
+ return -1;
+}
+
+/*
* Free a software acknowledge hardware resource by clearing its Pending
* bit. This will return a reply to the sender.
* If the message has timed out, a reply has already been sent by the
msp = __get_cpu_var(bau_control).msg_statuses + msg_slot;
cpu = uv_blade_processor_id();
msg->number_of_cpus =
- uv_blade_nr_online_cpus(uv_node_to_blade_id(numa_node_id()));
+ uv_blade_nr_online_cpus(uv_node_to_blade_id(numa_node_id()));
this_cpu_mask = 1UL << cpu;
if (msp->seen_by.bits & this_cpu_mask)
return;
destination_timeouts = 0;
}
}
+ cpu_relax();
}
return FLUSH_COMPLETE;
}
* Returns @flush_mask if some remote flushing remains to be done. The
* mask will have some bits still set.
*/
-const struct cpumask *uv_flush_send_and_wait(int cpu, int this_blade,
+const struct cpumask *uv_flush_send_and_wait(int cpu, int this_pnode,
struct bau_desc *bau_desc,
struct cpumask *flush_mask)
{
int completion_status = 0;
int right_shift;
int tries = 0;
- int blade;
+ int pnode;
int bit;
unsigned long mmr_offset;
unsigned long index;
* the cpu's, all of which are still in the mask.
*/
__get_cpu_var(ptcstats).ptc_i++;
- return 0;
+ return flush_mask;
}
/*
* use the IPI method of shootdown on them.
*/
for_each_cpu(bit, flush_mask) {
- blade = uv_cpu_to_blade_id(bit);
- if (blade == this_blade)
+ pnode = uv_cpu_to_pnode(bit);
+ if (pnode == this_pnode)
continue;
cpumask_clear_cpu(bit, flush_mask);
}
return NULL;
}
+static DEFINE_PER_CPU(cpumask_var_t, uv_flush_tlb_mask);
+
/**
* uv_flush_tlb_others - globally purge translation cache of a virtual
* address or all TLB's
struct mm_struct *mm,
unsigned long va, unsigned int cpu)
{
- static DEFINE_PER_CPU(cpumask_t, flush_tlb_mask);
- struct cpumask *flush_mask = &__get_cpu_var(flush_tlb_mask);
+ struct cpumask *flush_mask = __get_cpu_var(uv_flush_tlb_mask);
int i;
int bit;
- int blade;
+ int pnode;
int uv_cpu;
- int this_blade;
+ int this_pnode;
int locals = 0;
struct bau_desc *bau_desc;
- WARN_ON(!in_atomic());
-
cpumask_andnot(flush_mask, cpumask, cpumask_of(cpu));
uv_cpu = uv_blade_processor_id();
- this_blade = uv_numa_blade_id();
+ this_pnode = uv_hub_info->pnode;
bau_desc = __get_cpu_var(bau_control).descriptor_base;
bau_desc += UV_ITEMS_PER_DESCRIPTOR * uv_cpu;
i = 0;
for_each_cpu(bit, flush_mask) {
- blade = uv_cpu_to_blade_id(bit);
- BUG_ON(blade > (UV_DISTRIBUTION_SIZE - 1));
- if (blade == this_blade) {
+ pnode = uv_cpu_to_pnode(bit);
+ BUG_ON(pnode > (UV_DISTRIBUTION_SIZE - 1));
+ if (pnode == this_pnode) {
locals++;
continue;
}
- bau_node_set(blade, &bau_desc->distribution);
+ bau_node_set(pnode - uv_partition_base_pnode,
+ &bau_desc->distribution);
i++;
}
if (i == 0) {
bau_desc->payload.address = va;
bau_desc->payload.sending_cpu = cpu;
- return uv_flush_send_and_wait(uv_cpu, this_blade, bau_desc, flush_mask);
+ return uv_flush_send_and_wait(uv_cpu, this_pnode, bau_desc, flush_mask);
}
/*
set_irq_regs(old_regs);
}
+/*
+ * uv_enable_timeouts
+ *
+ * Each target blade (i.e. blades that have cpu's) needs to have
+ * shootdown message timeouts enabled. The timeout does not cause
+ * an interrupt, but causes an error message to be returned to
+ * the sender.
+ */
static void uv_enable_timeouts(void)
{
- int i;
int blade;
- int last_blade;
+ int nblades;
int pnode;
- int cur_cpu = 0;
- unsigned long apicid;
+ unsigned long mmr_image;
+
+ nblades = uv_num_possible_blades();
- last_blade = -1;
- for_each_online_node(i) {
- blade = uv_node_to_blade_id(i);
- if (blade == last_blade)
+ for (blade = 0; blade < nblades; blade++) {
+ if (!uv_blade_nr_possible_cpus(blade))
continue;
- last_blade = blade;
- apicid = per_cpu(x86_cpu_to_apicid, cur_cpu);
+
pnode = uv_blade_to_pnode(blade);
- cur_cpu += uv_blade_nr_possible_cpus(i);
+ mmr_image =
+ uv_read_global_mmr64(pnode, UVH_LB_BAU_MISC_CONTROL);
+ /*
+ * Set the timeout period and then lock it in, in three
+ * steps; captures and locks in the period.
+ *
+ * To program the period, the SOFT_ACK_MODE must be off.
+ */
+ mmr_image &= ~((unsigned long)1 <<
+ UV_ENABLE_INTD_SOFT_ACK_MODE_SHIFT);
+ uv_write_global_mmr64
+ (pnode, UVH_LB_BAU_MISC_CONTROL, mmr_image);
+ /*
+ * Set the 4-bit period.
+ */
+ mmr_image &= ~((unsigned long)0xf <<
+ UV_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHIFT);
+ mmr_image |= (UV_INTD_SOFT_ACK_TIMEOUT_PERIOD <<
+ UV_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHIFT);
+ uv_write_global_mmr64
+ (pnode, UVH_LB_BAU_MISC_CONTROL, mmr_image);
+ /*
+ * Subsequent reversals of the timebase bit (3) cause an
+ * immediate timeout of one or all INTD resources as
+ * indicated in bits 2:0 (7 causes all of them to timeout).
+ */
+ mmr_image |= ((unsigned long)1 <<
+ UV_ENABLE_INTD_SOFT_ACK_MODE_SHIFT);
+ uv_write_global_mmr64
+ (pnode, UVH_LB_BAU_MISC_CONTROL, mmr_image);
}
}
stat->requestee, stat->onetlb, stat->alltlb,
stat->s_retry, stat->d_retry, stat->ptc_i);
seq_printf(file, "%lx %ld %ld %ld %ld %ld %ld\n",
- uv_read_global_mmr64(uv_blade_to_pnode
- (uv_cpu_to_blade_id(cpu)),
+ uv_read_global_mmr64(uv_cpu_to_pnode(cpu),
UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE),
stat->sflush, stat->dflush,
stat->retriesok, stat->nomsg,
if (!is_uv_system())
return 0;
- proc_uv_ptc = create_proc_entry(UV_PTC_BASENAME, 0444, NULL);
+ proc_uv_ptc = proc_create(UV_PTC_BASENAME, 0444, NULL,
+ &proc_uv_ptc_operations);
if (!proc_uv_ptc) {
printk(KERN_ERR "unable to create %s proc entry\n",
UV_PTC_BASENAME);
return -EINVAL;
}
- proc_uv_ptc->proc_fops = &proc_uv_ptc_operations;
return 0;
}
* finish the initialization of the per-blade control structures
*/
static void __init
-uv_table_bases_finish(int blade, int node, int cur_cpu,
+uv_table_bases_finish(int blade,
struct bau_control *bau_tablesp,
struct bau_desc *adp)
{
struct bau_control *bcp;
- int i;
+ int cpu;
- for (i = cur_cpu; i < cur_cpu + uv_blade_nr_possible_cpus(blade); i++) {
- bcp = (struct bau_control *)&per_cpu(bau_control, i);
+ for_each_present_cpu(cpu) {
+ if (blade != uv_cpu_to_blade_id(cpu))
+ continue;
+ bcp = (struct bau_control *)&per_cpu(bau_control, cpu);
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;
unsigned long pa;
unsigned long m;
unsigned long n;
- unsigned long mmr_image;
struct bau_desc *adp;
struct bau_desc *ad2;
- adp = (struct bau_desc *)
- kmalloc_node(16384, GFP_KERNEL, node);
+ /*
+ * each bau_desc is 64 bytes; there are 8 (UV_ITEMS_PER_DESCRIPTOR)
+ * per cpu; and up to 32 (UV_ADP_SIZE) cpu's per blade
+ */
+ adp = (struct bau_desc *)kmalloc_node(sizeof(struct bau_desc)*
+ UV_ADP_SIZE*UV_ITEMS_PER_DESCRIPTOR, GFP_KERNEL, node);
BUG_ON(!adp);
- pa = __pa((unsigned long)adp);
- n = pa >> uv_nshift;
+ pa = uv_gpa(adp); /* need the real nasid*/
+ n = uv_gpa_to_pnode(pa);
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));
- }
+ uv_write_global_mmr64(pnode, 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++) {
+ /*
+ * initializing all 8 (UV_ITEMS_PER_DESCRIPTOR) descriptors for each
+ * cpu even though we only use the first one; one descriptor can
+ * describe a broadcast to 256 nodes.
+ */
+ for (i = 0, ad2 = adp; i < (UV_ADP_SIZE*UV_ITEMS_PER_DESCRIPTOR);
+ i++, ad2++) {
memset(ad2, 0, sizeof(struct bau_desc));
ad2->header.sw_ack_flag = 1;
- ad2->header.base_dest_nodeid =
- uv_blade_to_pnode(uv_cpu_to_blade_id(0));
+ /*
+ * base_dest_nodeid is the first node in the partition, so
+ * the bit map will indicate partition-relative node numbers.
+ * note that base_dest_nodeid is actually a nasid.
+ */
+ ad2->header.base_dest_nodeid = uv_partition_base_pnode << 1;
+ ad2->header.dest_subnodeid = 0x10; /* the LB */
ad2->header.command = UV_NET_ENDPOINT_INTD;
ad2->header.int_both = 1;
/*
uv_payload_queue_init(int node, int pnode, struct bau_control *bau_tablesp)
{
struct bau_payload_queue_entry *pqp;
+ unsigned long pa;
+ int pn;
char *cp;
pqp = (struct bau_payload_queue_entry *) kmalloc_node(
cp = (char *)pqp + 31;
pqp = (struct bau_payload_queue_entry *)(((unsigned long)cp >> 5) << 5);
bau_tablesp->va_queue_first = pqp;
+ /*
+ * need the pnode of where the memory was really allocated
+ */
+ pa = uv_gpa(pqp);
+ pn = uv_gpa_to_pnode(pa);
uv_write_global_mmr64(pnode,
UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST,
- ((unsigned long)pnode <<
- UV_PAYLOADQ_PNODE_SHIFT) |
+ ((unsigned long)pn << UV_PAYLOADQ_PNODE_SHIFT) |
uv_physnodeaddr(pqp));
uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL,
uv_physnodeaddr(pqp));
/*
* Initialization of each UV blade's structures
*/
-static int __init uv_init_blade(int blade, int node, int cur_cpu)
+static int __init uv_init_blade(int blade)
{
+ int node;
int pnode;
unsigned long pa;
unsigned long apicid;
struct bau_payload_queue_entry *pqp;
struct bau_control *bau_tablesp;
+ node = blade_to_first_node(blade);
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);
+ uv_table_bases_finish(blade, 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);
+ apicid = blade_to_first_apicid(blade);
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,
static int __init uv_bau_init(void)
{
int blade;
- int node;
int nblades;
- int last_blade;
- int cur_cpu = 0;
+ int cur_cpu;
if (!is_uv_system())
return 0;
+ for_each_possible_cpu(cur_cpu)
+ zalloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu),
+ GFP_KERNEL, cpu_to_node(cur_cpu));
+
uv_bau_retry_limit = 1;
- uv_nshift = uv_hub_info->n_val;
- uv_mmask = (1UL << uv_hub_info->n_val) - 1;
- nblades = 0;
- last_blade = -1;
- for_each_online_node(node) {
- blade = uv_node_to_blade_id(node);
- if (blade == last_blade)
- continue;
- last_blade = blade;
- nblades++;
- }
+ uv_mmask = (1UL << uv_hub_info->m_val) - 1;
+ nblades = uv_num_possible_blades();
+
uv_bau_table_bases = (struct bau_control **)
kmalloc(nblades * sizeof(struct bau_control *), GFP_KERNEL);
BUG_ON(!uv_bau_table_bases);
- last_blade = -1;
- for_each_online_node(node) {
- blade = uv_node_to_blade_id(node);
- if (blade == last_blade)
- continue;
- last_blade = blade;
- uv_init_blade(blade, node, cur_cpu);
- cur_cpu += uv_blade_nr_possible_cpus(blade);
- }
+ uv_partition_base_pnode = 0x7fffffff;
+ for (blade = 0; blade < nblades; blade++)
+ if (uv_blade_nr_possible_cpus(blade) &&
+ (uv_blade_to_pnode(blade) < uv_partition_base_pnode))
+ uv_partition_base_pnode = uv_blade_to_pnode(blade);
+ for (blade = 0; blade < nblades; blade++)
+ if (uv_blade_nr_possible_cpus(blade))
+ uv_init_blade(blade);
+
alloc_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
uv_enable_timeouts();
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff