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Diffstat (limited to 'arch/x86/kernel/apic/summit_32.c')
-rw-r--r--arch/x86/kernel/apic/summit_32.c47
1 files changed, 17 insertions, 30 deletions
diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index 9b41926..e4b8059 100644
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -194,11 +194,10 @@ static unsigned long summit_check_apicid_present(int bit)
return 1;
}
-static void summit_init_apic_ldr(void)
+static int summit_early_logical_apicid(int cpu)
{
- unsigned long val, id;
int count = 0;
- u8 my_id = (u8)hard_smp_processor_id();
+ u8 my_id = early_per_cpu(x86_cpu_to_apicid, cpu);
u8 my_cluster = APIC_CLUSTER(my_id);
#ifdef CONFIG_SMP
u8 lid;
@@ -206,7 +205,7 @@ static void summit_init_apic_ldr(void)
/* Create logical APIC IDs by counting CPUs already in cluster. */
for (count = 0, i = nr_cpu_ids; --i >= 0; ) {
- lid = cpu_2_logical_apicid[i];
+ lid = early_per_cpu(x86_cpu_to_logical_apicid, i);
if (lid != BAD_APICID && APIC_CLUSTER(lid) == my_cluster)
++count;
}
@@ -214,7 +213,15 @@ static void summit_init_apic_ldr(void)
/* We only have a 4 wide bitmap in cluster mode. If a deranged
* BIOS puts 5 CPUs in one APIC cluster, we're hosed. */
BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT);
- id = my_cluster | (1UL << count);
+ return my_cluster | (1UL << count);
+}
+
+static void summit_init_apic_ldr(void)
+{
+ int cpu = smp_processor_id();
+ unsigned long id = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
+ unsigned long val;
+
apic_write(APIC_DFR, SUMMIT_APIC_DFR_VALUE);
val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
val |= SET_APIC_LOGICAL_ID(id);
@@ -232,27 +239,6 @@ static void summit_setup_apic_routing(void)
nr_ioapics);
}
-static int summit_apicid_to_node(int logical_apicid)
-{
-#ifdef CONFIG_SMP
- return apicid_2_node[hard_smp_processor_id()];
-#else
- return 0;
-#endif
-}
-
-/* Mapping from cpu number to logical apicid */
-static inline int summit_cpu_to_logical_apicid(int cpu)
-{
-#ifdef CONFIG_SMP
- if (cpu >= nr_cpu_ids)
- return BAD_APICID;
- return cpu_2_logical_apicid[cpu];
-#else
- return logical_smp_processor_id();
-#endif
-}
-
static int summit_cpu_present_to_apicid(int mps_cpu)
{
if (mps_cpu < nr_cpu_ids)
@@ -286,7 +272,7 @@ static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
* The cpus in the mask must all be on the apic cluster.
*/
for_each_cpu(cpu, cpumask) {
- int new_apicid = summit_cpu_to_logical_apicid(cpu);
+ int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
printk("%s: Not a valid mask!\n", __func__);
@@ -301,7 +287,7 @@ static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
static unsigned int summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
const struct cpumask *andmask)
{
- int apicid = summit_cpu_to_logical_apicid(0);
+ int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
cpumask_var_t cpumask;
if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
@@ -528,8 +514,6 @@ struct apic apic_summit = {
.ioapic_phys_id_map = summit_ioapic_phys_id_map,
.setup_apic_routing = summit_setup_apic_routing,
.multi_timer_check = NULL,
- .apicid_to_node = summit_apicid_to_node,
- .cpu_to_logical_apicid = summit_cpu_to_logical_apicid,
.cpu_present_to_apicid = summit_cpu_present_to_apicid,
.apicid_to_cpu_present = summit_apicid_to_cpu_present,
.setup_portio_remap = NULL,
@@ -565,4 +549,7 @@ struct apic apic_summit = {
.icr_write = native_apic_icr_write,
.wait_icr_idle = native_apic_wait_icr_idle,
.safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
+
+ .x86_32_early_logical_apicid = summit_early_logical_apicid,
+ .x86_32_numa_cpu_node = default_x86_32_numa_cpu_node,
};