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x86/apic: Factor out default cpu_mask_to_apicid() operations 

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/20120605112340.GA11454@dhcp-26-207.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Alexander Gordeev 2012-06-05 13:23:44 +02:00 committed by Ingo Molnar
parent bf721d3a3b
commit 6398268d2b
8 changed files with 52 additions and 139 deletions
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13
arch/x86/include/asm/apic.h
View File

@ -592,14 +592,14 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
#endif
static inline unsigned int
default_cpu_mask_to_apicid(const struct cpumask *cpumask)
flat_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
return cpumask_bits(cpumask)[0] & APIC_ALL_CPUS;
}
static inline unsigned int
default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
flat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
{
unsigned long mask1 = cpumask_bits(cpumask)[0];
unsigned long mask2 = cpumask_bits(andmask)[0];
@ -608,6 +608,13 @@ default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
return (unsigned int)(mask1 & mask2 & mask3);
}
extern unsigned int
default_cpu_mask_to_apicid(const struct cpumask *cpumask);
extern unsigned int
default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask);
static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid)
{
return physid_isset(apicid, *map);

28
arch/x86/kernel/apic/apic.c
View File

@ -2123,6 +2123,34 @@ void default_init_apic_ldr(void)
apic_write(APIC_LDR, val);
}
unsigned int default_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);
if (likely((unsigned)cpu < nr_cpu_ids))
return per_cpu(x86_cpu_to_apicid, cpu);
return BAD_APICID;
}
unsigned int
default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
{
int cpu;
for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
return per_cpu(x86_cpu_to_apicid, cpu);
}
/*
* Power management
*/

40
arch/x86/kernel/apic/apic_flat_64.c
View File

@ -205,8 +205,8 @@ static struct apic apic_flat = {
.set_apic_id = set_apic_id,
.apic_id_mask = 0xFFu << 24,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
.send_IPI_mask = flat_send_IPI_mask,
.send_IPI_mask_allbutself = flat_send_IPI_mask_allbutself,
@ -284,38 +284,6 @@ static void physflat_send_IPI_all(int vector)
physflat_send_IPI_mask(cpu_online_mask, vector);
}
static unsigned int physflat_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);
if ((unsigned)cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
else
return BAD_APICID;
}
static unsigned int
physflat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
{
int cpu;
/*
* 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) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
return per_cpu(x86_cpu_to_apicid, cpu);
}
static int physflat_probe(void)
{
if (apic == &apic_physflat || num_possible_cpus() > 8)
@ -360,8 +328,8 @@ static struct apic apic_physflat = {
.set_apic_id = set_apic_id,
.apic_id_mask = 0xFFu << 24,
.cpu_mask_to_apicid = physflat_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = physflat_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.send_IPI_mask = physflat_send_IPI_mask,
.send_IPI_mask_allbutself = physflat_send_IPI_mask_allbutself,

4
arch/x86/kernel/apic/apic_noop.c
View File

@ -159,8 +159,8 @@ struct apic apic_noop = {
.set_apic_id = NULL,
.apic_id_mask = 0x0F << 24,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
.send_IPI_mask = noop_send_IPI_mask,
.send_IPI_mask_allbutself = noop_send_IPI_mask_allbutself,

36
arch/x86/kernel/apic/apic_numachip.c
View File

@ -152,38 +152,6 @@ static void numachip_send_IPI_self(int vector)
__default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
}
static unsigned int numachip_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);
if (likely((unsigned)cpu < nr_cpu_ids))
return per_cpu(x86_cpu_to_apicid, cpu);
return BAD_APICID;
}
static unsigned int
numachip_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
{
int cpu;
/*
* 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) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
return per_cpu(x86_cpu_to_apicid, cpu);
}
static int __init numachip_probe(void)
{
return apic == &apic_numachip;
@ -272,8 +240,8 @@ static struct apic apic_numachip __refconst = {
.set_apic_id = set_apic_id,
.apic_id_mask = 0xffU << 24,
.cpu_mask_to_apicid = numachip_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = numachip_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.send_IPI_mask = numachip_send_IPI_mask,
.send_IPI_mask_allbutself = numachip_send_IPI_mask_allbutself,

30
arch/x86/kernel/apic/bigsmp_32.c
View File

@ -96,32 +96,6 @@ static int bigsmp_check_phys_apicid_present(int phys_apicid)
return 1;
}
/* As we are using single CPU as destination, pick only one CPU here */
static unsigned int bigsmp_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
int cpu = cpumask_first(cpumask);
if (cpu < nr_cpu_ids)
return cpu_physical_id(cpu);
return BAD_APICID;
}
static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask)
{
int cpu;
/*
* 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) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
return cpu_physical_id(cpu);
}
return BAD_APICID;
}
static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
{
return cpuid_apic >> index_msb;
@ -220,8 +194,8 @@ static struct apic apic_bigsmp = {
.set_apic_id = NULL,
.apic_id_mask = 0xFF << 24,
.cpu_mask_to_apicid = bigsmp_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = bigsmp_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.send_IPI_mask = bigsmp_send_IPI_mask,
.send_IPI_mask_allbutself = NULL,

4
arch/x86/kernel/apic/probe_32.c
View File

@ -123,8 +123,8 @@ static struct apic apic_default = {
.set_apic_id = NULL,
.apic_id_mask = 0x0F << 24,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
.send_IPI_mask = default_send_IPI_mask_logical,
.send_IPI_mask_allbutself = default_send_IPI_mask_allbutself_logical,

36
arch/x86/kernel/apic/x2apic_phys.c
View File

@ -76,38 +76,6 @@ static void x2apic_send_IPI_all(int vector)
__x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
}
static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
{
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* May as well be the first.
*/
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)
{
int cpu;
/*
* 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) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
return per_cpu(x86_cpu_to_apicid, cpu);
}
static void init_x2apic_ldr(void)
{
}
@ -164,8 +132,8 @@ static struct apic apic_x2apic_phys = {
.set_apic_id = x2apic_set_apic_id,
.apic_id_mask = 0xFFFFFFFFu,
.cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = x2apic_cpu_mask_to_apicid_and,
.cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
.send_IPI_mask = x2apic_send_IPI_mask,
.send_IPI_mask_allbutself = x2apic_send_IPI_mask_allbutself,