x86, apic: refactor ->cpu_mask_to_apicid*()
- spread out the namespace on a per driver basis
- clean up the functions
- get rid of macros
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/genapic_flat_64.c b/arch/x86/kernel/genapic_flat_64.c
index 78baa55..b941b11 100644
--- a/arch/x86/kernel/genapic_flat_64.c
+++ b/arch/x86/kernel/genapic_flat_64.c
@@ -309,11 +309,13 @@
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
- for_each_cpu_and(cpu, cpumask, andmask)
+ for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
+ }
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
+
return BAD_APICID;
}
diff --git a/arch/x86/kernel/genx2apic_cluster.c b/arch/x86/kernel/genx2apic_cluster.c
index c7557e0..62f9fcc 100644
--- a/arch/x86/kernel/genx2apic_cluster.c
+++ b/arch/x86/kernel/genx2apic_cluster.c
@@ -111,21 +111,21 @@
static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
- int cpu;
-
/*
* We're using fixed IRQ delivery, can only return one logical APIC ID.
* May as well be the first.
*/
- cpu = cpumask_first(cpumask);
+ int cpu = cpumask_first(cpumask);
+
if ((unsigned)cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_logical_apicid, cpu);
else
return BAD_APICID;
}
-static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask)
+static unsigned int
+x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+ const struct cpumask *andmask)
{
int cpu;
@@ -133,11 +133,14 @@
* We're using fixed IRQ delivery, can only return one logical APIC ID.
* May as well be the first.
*/
- for_each_cpu_and(cpu, cpumask, andmask)
+ for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
+ }
+
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_logical_apicid, cpu);
+
return BAD_APICID;
}
diff --git a/arch/x86/kernel/genx2apic_phys.c b/arch/x86/kernel/genx2apic_phys.c
index 80cba49..3da1675 100644
--- a/arch/x86/kernel/genx2apic_phys.c
+++ b/arch/x86/kernel/genx2apic_phys.c
@@ -110,21 +110,21 @@
static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
- int cpu;
-
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
- cpu = cpumask_first(cpumask);
+ int cpu = cpumask_first(cpumask);
+
if ((unsigned)cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
else
return BAD_APICID;
}
-static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask)
+static unsigned int
+x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+ const struct cpumask *andmask)
{
int cpu;
@@ -132,11 +132,14 @@
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
- for_each_cpu_and(cpu, cpumask, andmask)
+ for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
+ }
+
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
+
return BAD_APICID;
}
diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c
index 50310b9..f957878 100644
--- a/arch/x86/kernel/genx2apic_uv_x.c
+++ b/arch/x86/kernel/genx2apic_uv_x.c
@@ -171,21 +171,21 @@
static unsigned int uv_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
- int cpu;
-
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
- cpu = cpumask_first(cpumask);
+ int cpu = cpumask_first(cpumask);
+
if ((unsigned)cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
else
return BAD_APICID;
}
-static unsigned int uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask)
+static unsigned int
+uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+ const struct cpumask *andmask)
{
int cpu;
@@ -193,11 +193,13 @@
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
- for_each_cpu_and(cpu, cpumask, andmask)
+ for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
+ }
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
+
return BAD_APICID;
}
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 3d85d3d..01a2505 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -563,8 +563,9 @@
assign_irq_vector(int irq, struct irq_cfg *cfg, const struct cpumask *mask);
/*
- * Either sets desc->affinity to a valid value, and returns cpu_mask_to_apicid
- * of that, or returns BAD_APICID and leaves desc->affinity untouched.
+ * Either sets desc->affinity to a valid value, and returns
+ * ->cpu_mask_to_apicid of that, or returns BAD_APICID and
+ * leaves desc->affinity untouched.
*/
static unsigned int
set_desc_affinity(struct irq_desc *desc, const struct cpumask *mask)
@@ -582,7 +583,8 @@
cpumask_and(desc->affinity, cfg->domain, mask);
set_extra_move_desc(desc, mask);
- return cpu_mask_to_apicid_and(desc->affinity, cpu_online_mask);
+
+ return apic->cpu_mask_to_apicid_and(desc->affinity, cpu_online_mask);
}
static void
@@ -1562,7 +1564,7 @@
if (assign_irq_vector(irq, cfg, apic->target_cpus()))
return;
- dest = cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
+ dest = apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
apic_printk(APIC_VERBOSE,KERN_DEBUG
"IOAPIC[%d]: Set routing entry (%d-%d -> 0x%x -> "
@@ -1666,7 +1668,7 @@
*/
entry.dest_mode = apic->irq_dest_mode;
entry.mask = 1; /* mask IRQ now */
- entry.dest = cpu_mask_to_apicid(apic->target_cpus());
+ entry.dest = apic->cpu_mask_to_apicid(apic->target_cpus());
entry.delivery_mode = apic->irq_delivery_mode;
entry.polarity = 0;
entry.trigger = 0;
@@ -2367,7 +2369,7 @@
set_extra_move_desc(desc, mask);
- dest = cpu_mask_to_apicid_and(cfg->domain, mask);
+ dest = apic->cpu_mask_to_apicid_and(cfg->domain, mask);
modify_ioapic_rte = desc->status & IRQ_LEVEL;
if (modify_ioapic_rte) {
@@ -3270,7 +3272,7 @@
if (err)
return err;
- dest = cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
+ dest = apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
#ifdef CONFIG_INTR_REMAP
if (irq_remapped(irq)) {
@@ -3708,7 +3710,8 @@
struct ht_irq_msg msg;
unsigned dest;
- dest = cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
+ dest = apic->cpu_mask_to_apicid_and(cfg->domain,
+ apic->target_cpus());
msg.address_hi = HT_IRQ_HIGH_DEST_ID(dest);
@@ -3773,7 +3776,7 @@
entry->polarity = 0;
entry->trigger = 0;
entry->mask = 0;
- entry->dest = cpu_mask_to_apicid(eligible_cpu);
+ entry->dest = apic->cpu_mask_to_apicid(eligible_cpu);
mmr_pnode = uv_blade_to_pnode(mmr_blade);
uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value);