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-rw-r--r--arch/ia64/mm/discontig.c13
-rw-r--r--arch/ia64/mm/numa.c4
-rw-r--r--arch/ia64/mm/tlb.c196
3 files changed, 204 insertions, 9 deletions
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index ee5e68b2af9..6136a4c6df1 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -104,7 +104,7 @@ static int __meminit early_nr_cpus_node(int node)
{
int cpu, n = 0;
- for (cpu = 0; cpu < NR_CPUS; cpu++)
+ for_each_possible_early_cpu(cpu)
if (node == node_cpuid[cpu].nid)
n++;
@@ -124,6 +124,7 @@ static unsigned long __meminit compute_pernodesize(int node)
pernodesize += node * L1_CACHE_BYTES;
pernodesize += L1_CACHE_ALIGN(sizeof(pg_data_t));
pernodesize += L1_CACHE_ALIGN(sizeof(struct ia64_node_data));
+ pernodesize += L1_CACHE_ALIGN(sizeof(pg_data_t));
pernodesize = PAGE_ALIGN(pernodesize);
return pernodesize;
}
@@ -142,7 +143,7 @@ static void *per_cpu_node_setup(void *cpu_data, int node)
#ifdef CONFIG_SMP
int cpu;
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
+ for_each_possible_early_cpu(cpu) {
if (node == node_cpuid[cpu].nid) {
memcpy(__va(cpu_data), __phys_per_cpu_start,
__per_cpu_end - __per_cpu_start);
@@ -345,7 +346,7 @@ static void __init initialize_pernode_data(void)
#ifdef CONFIG_SMP
/* Set the node_data pointer for each per-cpu struct */
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
+ for_each_possible_early_cpu(cpu) {
node = node_cpuid[cpu].nid;
per_cpu(cpu_info, cpu).node_data = mem_data[node].node_data;
}
@@ -493,13 +494,9 @@ void __cpuinit *per_cpu_init(void)
int cpu;
static int first_time = 1;
-
- if (smp_processor_id() != 0)
- return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
-
if (first_time) {
first_time = 0;
- for (cpu = 0; cpu < NR_CPUS; cpu++)
+ for_each_possible_early_cpu(cpu)
per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
}
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index 7807fc5c042..b73bf1838e5 100644
--- a/arch/ia64/mm/numa.c
+++ b/arch/ia64/mm/numa.c
@@ -27,7 +27,9 @@
*/
int num_node_memblks;
struct node_memblk_s node_memblk[NR_NODE_MEMBLKS];
-struct node_cpuid_s node_cpuid[NR_CPUS];
+struct node_cpuid_s node_cpuid[NR_CPUS] =
+ { [0 ... NR_CPUS-1] = { .phys_id = 0, .nid = NUMA_NO_NODE } };
+
/*
* This is a matrix with "distances" between nodes, they should be
* proportional to the memory access latency ratios.
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 1a8948fd002..d52ec4e8340 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -29,7 +29,9 @@
#include <asm/pal.h>
#include <asm/tlbflush.h>
#include <asm/dma.h>
+#include <asm/processor.h>
#include <asm/sal.h>
+#include <asm/tlb.h>
static struct {
unsigned long mask; /* mask of supported purge page-sizes */
@@ -43,6 +45,10 @@ struct ia64_ctx ia64_ctx = {
};
DEFINE_PER_CPU(u8, ia64_need_tlb_flush);
+DEFINE_PER_CPU(u8, ia64_tr_num); /*Number of TR slots in current processor*/
+DEFINE_PER_CPU(u8, ia64_tr_used); /*Max Slot number used by kernel*/
+
+struct ia64_tr_entry __per_cpu_idtrs[NR_CPUS][2][IA64_TR_ALLOC_MAX];
/*
* Initializes the ia64_ctx.bitmap array based on max_ctx+1.
@@ -321,6 +327,9 @@ ia64_tlb_init (void)
ia64_ptce_info_t uninitialized_var(ptce_info); /* GCC be quiet */
unsigned long tr_pgbits;
long status;
+ pal_vm_info_1_u_t vm_info_1;
+ pal_vm_info_2_u_t vm_info_2;
+ int cpu = smp_processor_id();
if ((status = ia64_pal_vm_page_size(&tr_pgbits, &purge.mask)) != 0) {
printk(KERN_ERR "PAL_VM_PAGE_SIZE failed with status=%ld; "
@@ -337,4 +346,191 @@ ia64_tlb_init (void)
local_cpu_data->ptce_stride[1] = ptce_info.stride[1];
local_flush_tlb_all(); /* nuke left overs from bootstrapping... */
+ status = ia64_pal_vm_summary(&vm_info_1, &vm_info_2);
+
+ if (status) {
+ printk(KERN_ERR "ia64_pal_vm_summary=%ld\n", status);
+ per_cpu(ia64_tr_num, cpu) = 8;
+ return;
+ }
+ per_cpu(ia64_tr_num, cpu) = vm_info_1.pal_vm_info_1_s.max_itr_entry+1;
+ if (per_cpu(ia64_tr_num, cpu) >
+ (vm_info_1.pal_vm_info_1_s.max_dtr_entry+1))
+ per_cpu(ia64_tr_num, cpu) =
+ vm_info_1.pal_vm_info_1_s.max_dtr_entry+1;
+ if (per_cpu(ia64_tr_num, cpu) > IA64_TR_ALLOC_MAX) {
+ per_cpu(ia64_tr_num, cpu) = IA64_TR_ALLOC_MAX;
+ printk(KERN_DEBUG "TR register number exceeds IA64_TR_ALLOC_MAX!"
+ "IA64_TR_ALLOC_MAX should be extended\n");
+ }
+}
+
+/*
+ * is_tr_overlap
+ *
+ * Check overlap with inserted TRs.
+ */
+static int is_tr_overlap(struct ia64_tr_entry *p, u64 va, u64 log_size)
+{
+ u64 tr_log_size;
+ u64 tr_end;
+ u64 va_rr = ia64_get_rr(va);
+ u64 va_rid = RR_TO_RID(va_rr);
+ u64 va_end = va + (1<<log_size) - 1;
+
+ if (va_rid != RR_TO_RID(p->rr))
+ return 0;
+ tr_log_size = (p->itir & 0xff) >> 2;
+ tr_end = p->ifa + (1<<tr_log_size) - 1;
+
+ if (va > tr_end || p->ifa > va_end)
+ return 0;
+ return 1;
+
+}
+
+/*
+ * ia64_insert_tr in virtual mode. Allocate a TR slot
+ *
+ * target_mask : 0x1 : itr, 0x2 : dtr, 0x3 : idtr
+ *
+ * va : virtual address.
+ * pte : pte entries inserted.
+ * log_size: range to be covered.
+ *
+ * Return value: <0 : error No.
+ *
+ * >=0 : slot number allocated for TR.
+ * Must be called with preemption disabled.
+ */
+int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size)
+{
+ int i, r;
+ unsigned long psr;
+ struct ia64_tr_entry *p;
+ int cpu = smp_processor_id();
+
+ r = -EINVAL;
+ /*Check overlap with existing TR entries*/
+ if (target_mask & 0x1) {
+ p = &__per_cpu_idtrs[cpu][0][0];
+ for (i = IA64_TR_ALLOC_BASE; i <= per_cpu(ia64_tr_used, cpu);
+ i++, p++) {
+ if (p->pte & 0x1)
+ if (is_tr_overlap(p, va, log_size)) {
+ printk(KERN_DEBUG "Overlapped Entry"
+ "Inserted for TR Reigster!!\n");
+ goto out;
+ }
+ }
+ }
+ if (target_mask & 0x2) {
+ p = &__per_cpu_idtrs[cpu][1][0];
+ for (i = IA64_TR_ALLOC_BASE; i <= per_cpu(ia64_tr_used, cpu);
+ i++, p++) {
+ if (p->pte & 0x1)
+ if (is_tr_overlap(p, va, log_size)) {
+ printk(KERN_DEBUG "Overlapped Entry"
+ "Inserted for TR Reigster!!\n");
+ goto out;
+ }
+ }
+ }
+
+ for (i = IA64_TR_ALLOC_BASE; i < per_cpu(ia64_tr_num, cpu); i++) {
+ switch (target_mask & 0x3) {
+ case 1:
+ if (!(__per_cpu_idtrs[cpu][0][i].pte & 0x1))
+ goto found;
+ continue;
+ case 2:
+ if (!(__per_cpu_idtrs[cpu][1][i].pte & 0x1))
+ goto found;
+ continue;
+ case 3:
+ if (!(__per_cpu_idtrs[cpu][0][i].pte & 0x1) &&
+ !(__per_cpu_idtrs[cpu][1][i].pte & 0x1))
+ goto found;
+ continue;
+ default:
+ r = -EINVAL;
+ goto out;
+ }
+ }
+found:
+ if (i >= per_cpu(ia64_tr_num, cpu))
+ return -EBUSY;
+
+ /*Record tr info for mca hander use!*/
+ if (i > per_cpu(ia64_tr_used, cpu))
+ per_cpu(ia64_tr_used, cpu) = i;
+
+ psr = ia64_clear_ic();
+ if (target_mask & 0x1) {
+ ia64_itr(0x1, i, va, pte, log_size);
+ ia64_srlz_i();
+ p = &__per_cpu_idtrs[cpu][0][i];
+ p->ifa = va;
+ p->pte = pte;
+ p->itir = log_size << 2;
+ p->rr = ia64_get_rr(va);
+ }
+ if (target_mask & 0x2) {
+ ia64_itr(0x2, i, va, pte, log_size);
+ ia64_srlz_i();
+ p = &__per_cpu_idtrs[cpu][1][i];
+ p->ifa = va;
+ p->pte = pte;
+ p->itir = log_size << 2;
+ p->rr = ia64_get_rr(va);
+ }
+ ia64_set_psr(psr);
+ r = i;
+out:
+ return r;
+}
+EXPORT_SYMBOL_GPL(ia64_itr_entry);
+
+/*
+ * ia64_purge_tr
+ *
+ * target_mask: 0x1: purge itr, 0x2 : purge dtr, 0x3 purge idtr.
+ * slot: slot number to be freed.
+ *
+ * Must be called with preemption disabled.
+ */
+void ia64_ptr_entry(u64 target_mask, int slot)
+{
+ int cpu = smp_processor_id();
+ int i;
+ struct ia64_tr_entry *p;
+
+ if (slot < IA64_TR_ALLOC_BASE || slot >= per_cpu(ia64_tr_num, cpu))
+ return;
+
+ if (target_mask & 0x1) {
+ p = &__per_cpu_idtrs[cpu][0][slot];
+ if ((p->pte&0x1) && is_tr_overlap(p, p->ifa, p->itir>>2)) {
+ p->pte = 0;
+ ia64_ptr(0x1, p->ifa, p->itir>>2);
+ ia64_srlz_i();
+ }
+ }
+
+ if (target_mask & 0x2) {
+ p = &__per_cpu_idtrs[cpu][1][slot];
+ if ((p->pte & 0x1) && is_tr_overlap(p, p->ifa, p->itir>>2)) {
+ p->pte = 0;
+ ia64_ptr(0x2, p->ifa, p->itir>>2);
+ ia64_srlz_i();
+ }
+ }
+
+ for (i = per_cpu(ia64_tr_used, cpu); i >= IA64_TR_ALLOC_BASE; i--) {
+ if ((__per_cpu_idtrs[cpu][0][i].pte & 0x1) ||
+ (__per_cpu_idtrs[cpu][1][i].pte & 0x1))
+ break;
+ }
+ per_cpu(ia64_tr_used, cpu) = i;
}
+EXPORT_SYMBOL_GPL(ia64_ptr_entry);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 04:16:30 +0000