diff options
| -rw-r--r-- | arch/x86/kernel/tlb_uv.c | 107 |
1 files changed, 62 insertions, 45 deletions
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index d8705e97e8d0..7bdbf67a2d79 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -11,19 +11,22 @@ #include <linux/kernel.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_hub.h> #include <asm/uv/uv_bau.h> +#include <asm/genapic.h> +#include <asm/idle.h> #include <asm/tsc.h> #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; +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; + +static unsigned long uv_mmask __read_mostly; static DEFINE_PER_CPU(struct ptc_stats, ptcstats); static DEFINE_PER_CPU(struct bau_control, bau_control); @@ -37,8 +40,8 @@ static DEFINE_PER_CPU(struct bau_control, bau_control); * be sent (the hardware will only do one reply per message). */ static void uv_reply_to_message(int resource, - struct bau_payload_queue_entry *msg, - struct bau_msg_status *msp) + struct bau_payload_queue_entry *msg, + struct bau_msg_status *msp) { unsigned long dw; @@ -55,11 +58,11 @@ static void uv_reply_to_message(int resource, * 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, - int msg_slot, int sw_ack_slot) + int msg_slot, int sw_ack_slot) { - int cpu; unsigned long this_cpu_mask; struct bau_msg_status *msp; + int cpu; msp = __get_cpu_var(bau_control).msg_statuses + msg_slot; cpu = uv_blade_processor_id(); @@ -96,11 +99,11 @@ static void uv_bau_process_message(struct bau_payload_queue_entry *msg, */ static int uv_examine_destination(struct bau_control *bau_tablesp, int sender) { - int i; - int j; - int count = 0; struct bau_payload_queue_entry *msg; struct bau_msg_status *msp; + int count = 0; + int i; + int j; for (msg = bau_tablesp->va_queue_first, i = 0; i < DEST_Q_SIZE; msg++, i++) { @@ -111,7 +114,7 @@ static int uv_examine_destination(struct bau_control *bau_tablesp, int sender) i, msg->address, msg->acknowledge_count, msg->number_of_cpus); for (j = 0; j < msg->number_of_cpus; j++) { - if (!((long)1 << j & msp-> seen_by.bits)) { + if (!((1L << j) & msp->seen_by.bits)) { count++; printk("%d ", j); } @@ -135,8 +138,7 @@ static int uv_examine_destinations(struct bau_target_nodemask *distribution) int count = 0; sender = smp_processor_id(); - for (i = 0; i < (sizeof(struct bau_target_nodemask) * BITSPERBYTE); - i++) { + for (i = 0; i < sizeof(struct bau_target_nodemask) * BITSPERBYTE; i++) { if (!bau_node_isset(i, distribution)) continue; count += uv_examine_destination(uv_bau_table_bases[i], sender); @@ -217,11 +219,11 @@ int uv_flush_send_and_wait(int cpu, int this_blade, struct bau_desc *bau_desc, { int completion_status = 0; int right_shift; - int bit; - int blade; int tries = 0; - unsigned long index; + int blade; + int bit; unsigned long mmr_offset; + unsigned long index; cycles_t time1; cycles_t time2; @@ -294,7 +296,7 @@ int uv_flush_send_and_wait(int cpu, int this_blade, struct bau_desc *bau_desc, * 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) + unsigned long va) { int i; int bit; @@ -356,12 +358,12 @@ int uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm, */ void uv_bau_message_interrupt(struct pt_regs *regs) { - struct bau_payload_queue_entry *pqp; - struct bau_payload_queue_entry *msg; struct bau_payload_queue_entry *va_queue_first; struct bau_payload_queue_entry *va_queue_last; + struct bau_payload_queue_entry *msg; struct pt_regs *old_regs = set_irq_regs(regs); - cycles_t time1, time2; + cycles_t time1; + cycles_t time2; int msg_slot; int sw_ack_slot; int fw; @@ -376,13 +378,14 @@ void uv_bau_message_interrupt(struct pt_regs *regs) local_pnode = uv_blade_to_pnode(uv_numa_blade_id()); - pqp = va_queue_first = __get_cpu_var(bau_control).va_queue_first; + va_queue_first = __get_cpu_var(bau_control).va_queue_first; va_queue_last = __get_cpu_var(bau_control).va_queue_last; + msg = __get_cpu_var(bau_control).bau_msg_head; while (msg->sw_ack_vector) { count++; fw = msg->sw_ack_vector; - msg_slot = msg - pqp; + msg_slot = msg - va_queue_first; sw_ack_slot = ffs(fw) - 1; uv_bau_process_message(msg, msg_slot, sw_ack_slot); @@ -484,7 +487,7 @@ static int uv_ptc_seq_show(struct seq_file *file, void *data) * >0: retry limit */ static ssize_t uv_ptc_proc_write(struct file *file, const char __user *user, - size_t count, loff_t *data) + size_t count, loff_t *data) { long newmode; char optstr[64]; @@ -587,42 +590,48 @@ static struct bau_control * __init uv_table_bases_init(int blade, int node) bau_tabp = kmalloc_node(sizeof(struct bau_control), GFP_KERNEL, node); BUG_ON(!bau_tabp); + bau_tabp->msg_statuses = kmalloc_node(sizeof(struct bau_msg_status) * DEST_Q_SIZE, GFP_KERNEL, node); BUG_ON(!bau_tabp->msg_statuses); + for (i = 0, msp = bau_tabp->msg_statuses; i < DEST_Q_SIZE; i++, msp++) bau_cpubits_clear(&msp->seen_by, (int) uv_blade_nr_possible_cpus(blade)); + bau_tabp->watching = kmalloc_node(sizeof(int) * DEST_NUM_RESOURCES, GFP_KERNEL, node); BUG_ON(!bau_tabp->watching); - for (i = 0, ip = bau_tabp->watching; i < DEST_Q_SIZE; i++, ip++) { + + for (i = 0, ip = bau_tabp->watching; i < DEST_Q_SIZE; i++, ip++) *ip = 0; - } + uv_bau_table_bases[blade] = bau_tabp; + return bau_tabsp; } /* * 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_desc *adp) +static void __init +uv_table_bases_finish(int blade, int node, int cur_cpu, + struct bau_control *bau_tablesp, + struct bau_desc *adp) { - int i; struct bau_control *bcp; + int i; - for (i = cur_cpu; i < (cur_cpu + uv_blade_nr_possible_cpus(blade)); - i++) { + 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; + + 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; } } @@ -643,14 +652,18 @@ uv_activation_descriptor_init(int node, int pnode) adp = (struct bau_desc *) kmalloc_node(16384, GFP_KERNEL, node); BUG_ON(!adp); + 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) + 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_desc)); ad2->header.sw_ack_flag = 1; @@ -669,16 +682,17 @@ uv_activation_descriptor_init(int node, int pnode) /* * 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) +static struct bau_payload_queue_entry * __init +uv_payload_queue_init(int node, int pnode, struct bau_control *bau_tablesp) { - char *cp; struct bau_payload_queue_entry *pqp; + char *cp; pqp = (struct bau_payload_queue_entry *) kmalloc_node( (DEST_Q_SIZE + 1) * sizeof(struct bau_payload_queue_entry), GFP_KERNEL, node); BUG_ON(!pqp); + cp = (char *)pqp + 31; pqp = (struct bau_payload_queue_entry *)(((unsigned long)cp >> 5) << 5); bau_tablesp->va_queue_first = pqp; @@ -694,6 +708,7 @@ static struct bau_payload_queue_entry * __init uv_payload_queue_init(int node, (unsigned long) uv_physnodeaddr(bau_tablesp->va_queue_last)); memset(pqp, 0, sizeof(struct bau_payload_queue_entry) * DEST_Q_SIZE); + return pqp; } @@ -756,6 +771,7 @@ static int __init uv_bau_init(void) 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); @@ -767,6 +783,7 @@ static int __init uv_bau_init(void) } set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1); uv_enable_timeouts(); + return 0; } __initcall(uv_bau_init); |