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Merge branch 'x86/numa' into x86/mm

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Merge reason: consolidate it into the more generic x86/mm tree to prevent conflicts.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2011-02-16 09:44:04 +01:00
parent 02ac81a812 14392fd329
commit 52b8b8d725
34 changed files with 504 additions and 488 deletions
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arch/x86/kernel/acpi/boot.c
+1 -7
View File
@@ -589,14 +589,8 @@ static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
nid = acpi_get_node(handle);
if (nid == -1 || !node_online(nid))
return;
#ifdef CONFIG_X86_64
apicid_to_node[physid] = nid;
set_apicid_to_node(physid, nid);
numa_set_node(cpu, nid);
#else /* CONFIG_X86_32 */
apicid_2_node[physid] = nid;
cpu_to_node_map[cpu] = nid;
#endif
#endif
}
arch/x86/kernel/apic/apic.c
+33 -4
View File
@@ -78,6 +78,15 @@ EXPORT_EARLY_PER_CPU_SYMBOL(x86_cpu_to_apicid);
EXPORT_EARLY_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
#ifdef CONFIG_X86_32
/*
* On x86_32, the mapping between cpu and logical apicid may vary
* depending on apic in use. The following early percpu variable is
* used for the mapping. This is where the behaviors of x86_64 and 32
* actually diverge. Let's keep it ugly for now.
*/
DEFINE_EARLY_PER_CPU(int, x86_cpu_to_logical_apicid, BAD_APICID);
/*
* Knob to control our willingness to enable the local APIC.
*
@@ -1237,6 +1246,19 @@ void __cpuinit setup_local_APIC(void)
*/
apic->init_apic_ldr();
#ifdef CONFIG_X86_32
/*
* APIC LDR is initialized. If logical_apicid mapping was
* initialized during get_smp_config(), make sure it matches the
* actual value.
*/
i = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
WARN_ON(i != BAD_APICID && i != logical_smp_processor_id());
/* always use the value from LDR */
early_per_cpu(x86_cpu_to_logical_apicid, cpu) =
logical_smp_processor_id();
#endif
/*
* Set Task Priority to 'accept all'. We never change this
* later on.
@@ -1972,7 +1994,10 @@ void __cpuinit generic_processor_info(int apicid, int version)
early_per_cpu(x86_cpu_to_apicid, cpu) = apicid;
early_per_cpu(x86_bios_cpu_apicid, cpu) = apicid;
#endif
#ifdef CONFIG_X86_32
early_per_cpu(x86_cpu_to_logical_apicid, cpu) =
apic->x86_32_early_logical_apicid(cpu);
#endif
set_cpu_possible(cpu, true);
set_cpu_present(cpu, true);
}
@@ -1993,10 +2018,14 @@ void default_init_apic_ldr(void)
}
#ifdef CONFIG_X86_32
int default_apicid_to_node(int logical_apicid)
int default_x86_32_numa_cpu_node(int cpu)
{
#ifdef CONFIG_SMP
return apicid_2_node[hard_smp_processor_id()];
#ifdef CONFIG_NUMA
int apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
if (apicid != BAD_APICID)
return __apicid_to_node[apicid];
return NUMA_NO_NODE;
#else
return 0;
#endif
arch/x86/kernel/apic/apic_flat_64.c
-4
View File
@@ -185,8 +185,6 @@ struct apic apic_flat = {
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.multi_timer_check = NULL,
.apicid_to_node = NULL,
.cpu_to_logical_apicid = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = NULL,
.setup_portio_remap = NULL,
@@ -337,8 +335,6 @@ struct apic apic_physflat = {
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.multi_timer_check = NULL,
.apicid_to_node = NULL,
.cpu_to_logical_apicid = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = NULL,
.setup_portio_remap = NULL,
arch/x86/kernel/apic/apic_noop.c
+13 -13
View File
@@ -54,11 +54,6 @@ static u64 noop_apic_icr_read(void)
return 0;
}
static int noop_cpu_to_logical_apicid(int cpu)
{
return 0;
}
static int noop_phys_pkg_id(int cpuid_apic, int index_msb)
{
return 0;
@@ -113,12 +108,6 @@ static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask)
cpumask_set_cpu(cpu, retmask);
}
int noop_apicid_to_node(int logical_apicid)
{
/* we're always on node 0 */
return 0;
}
static u32 noop_apic_read(u32 reg)
{
WARN_ON_ONCE((cpu_has_apic && !disable_apic));
@@ -130,6 +119,14 @@ static void noop_apic_write(u32 reg, u32 v)
WARN_ON_ONCE(cpu_has_apic && !disable_apic);
}
#ifdef CONFIG_X86_32
static int noop_x86_32_numa_cpu_node(int cpu)
{
/* we're always on node 0 */
return 0;
}
#endif
struct apic apic_noop = {
.name = "noop",
.probe = noop_probe,
@@ -153,9 +150,7 @@ struct apic apic_noop = {
.ioapic_phys_id_map = default_ioapic_phys_id_map,
.setup_apic_routing = NULL,
.multi_timer_check = NULL,
.apicid_to_node = noop_apicid_to_node,
.cpu_to_logical_apicid = noop_cpu_to_logical_apicid,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = physid_set_mask_of_physid,
@@ -197,4 +192,9 @@ struct apic apic_noop = {
.icr_write = noop_apic_icr_write,
.wait_icr_idle = noop_apic_wait_icr_idle,
.safe_wait_icr_idle = noop_safe_apic_wait_icr_idle,
#ifdef CONFIG_X86_32
.x86_32_early_logical_apicid = noop_x86_32_early_logical_apicid,
.x86_32_numa_cpu_node = noop_x86_32_numa_cpu_node,
#endif
};
arch/x86/kernel/apic/bigsmp_32.c
+16 -18
View File
@@ -45,6 +45,12 @@ static unsigned long bigsmp_check_apicid_present(int bit)
return 1;
}
static int bigsmp_early_logical_apicid(int cpu)
{
/* on bigsmp, logical apicid is the same as physical */
return early_per_cpu(x86_cpu_to_apicid, cpu);
}
static inline unsigned long calculate_ldr(int cpu)
{
unsigned long val, id;
@@ -80,11 +86,6 @@ static void bigsmp_setup_apic_routing(void)
nr_ioapics);
}
static int bigsmp_apicid_to_node(int logical_apicid)
{
return apicid_2_node[hard_smp_processor_id()];
}
static int bigsmp_cpu_present_to_apicid(int mps_cpu)
{
if (mps_cpu < nr_cpu_ids)
@@ -93,14 +94,6 @@ static int bigsmp_cpu_present_to_apicid(int mps_cpu)
return BAD_APICID;
}
/* Mapping from cpu number to logical apicid */
static inline int bigsmp_cpu_to_logical_apicid(int cpu)
{
if (cpu >= nr_cpu_ids)
return BAD_APICID;
return cpu_physical_id(cpu);
}
static void bigsmp_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
{
/* For clustered we don't have a good way to do this yet - hack */
@@ -115,7 +108,11 @@ static int bigsmp_check_phys_apicid_present(int phys_apicid)
/* 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)
{
return bigsmp_cpu_to_logical_apicid(cpumask_first(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,
@@ -129,9 +126,9 @@ static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
*/
for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
return cpu_physical_id(cpu);
}
return bigsmp_cpu_to_logical_apicid(cpu);
return BAD_APICID;
}
static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
@@ -219,8 +216,6 @@ struct apic apic_bigsmp = {
.ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
.setup_apic_routing = bigsmp_setup_apic_routing,
.multi_timer_check = NULL,
.apicid_to_node = bigsmp_apicid_to_node,
.cpu_to_logical_apicid = bigsmp_cpu_to_logical_apicid,
.cpu_present_to_apicid = bigsmp_cpu_present_to_apicid,
.apicid_to_cpu_present = physid_set_mask_of_physid,
.setup_portio_remap = NULL,
@@ -256,4 +251,7 @@ struct apic apic_bigsmp = {
.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 = bigsmp_early_logical_apicid,
.x86_32_numa_cpu_node = default_x86_32_numa_cpu_node,
};
arch/x86/kernel/apic/es7000_32.c
+15 -20
View File
@@ -460,6 +460,12 @@ static unsigned long es7000_check_apicid_present(int bit)
return physid_isset(bit, phys_cpu_present_map);
}
static int es7000_early_logical_apicid(int cpu)
{
/* on es7000, logical apicid is the same as physical */
return early_per_cpu(x86_bios_cpu_apicid, cpu);
}
static unsigned long calculate_ldr(int cpu)
{
unsigned long id = per_cpu(x86_bios_cpu_apicid, cpu);
@@ -504,12 +510,11 @@ static void es7000_setup_apic_routing(void)
nr_ioapics, cpumask_bits(es7000_target_cpus())[0]);
}
static int es7000_apicid_to_node(int logical_apicid)
static int es7000_numa_cpu_node(int cpu)
{
return 0;
}
static int es7000_cpu_present_to_apicid(int mps_cpu)
{
if (!mps_cpu)
@@ -528,18 +533,6 @@ static void es7000_apicid_to_cpu_present(int phys_apicid, physid_mask_t *retmap)
++cpu_id;
}
/* Mapping from cpu number to logical apicid */
static int es7000_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 void es7000_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
{
/* For clustered we don't have a good way to do this yet - hack */
@@ -561,7 +554,7 @@ static unsigned int es7000_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 = es7000_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)) {
WARN(1, "Not a valid mask!");
@@ -578,7 +571,7 @@ static unsigned int
es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
const struct cpumask *andmask)
{
int apicid = es7000_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))
@@ -655,8 +648,6 @@ struct apic __refdata apic_es7000_cluster = {
.ioapic_phys_id_map = es7000_ioapic_phys_id_map,
.setup_apic_routing = es7000_setup_apic_routing,
.multi_timer_check = NULL,
.apicid_to_node = es7000_apicid_to_node,
.cpu_to_logical_apicid = es7000_cpu_to_logical_apicid,
.cpu_present_to_apicid = es7000_cpu_present_to_apicid,
.apicid_to_cpu_present = es7000_apicid_to_cpu_present,
.setup_portio_remap = NULL,
@@ -695,6 +686,9 @@ struct apic __refdata apic_es7000_cluster = {
.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 = es7000_early_logical_apicid,
.x86_32_numa_cpu_node = es7000_numa_cpu_node,
};
struct apic __refdata apic_es7000 = {
@@ -720,8 +714,6 @@ struct apic __refdata apic_es7000 = {
.ioapic_phys_id_map = es7000_ioapic_phys_id_map,
.setup_apic_routing = es7000_setup_apic_routing,
.multi_timer_check = NULL,
.apicid_to_node = es7000_apicid_to_node,
.cpu_to_logical_apicid = es7000_cpu_to_logical_apicid,
.cpu_present_to_apicid = es7000_cpu_present_to_apicid,
.apicid_to_cpu_present = es7000_apicid_to_cpu_present,
.setup_portio_remap = NULL,
@@ -758,4 +750,7 @@ struct apic __refdata apic_es7000 = {
.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 = es7000_early_logical_apicid,
.x86_32_numa_cpu_node = es7000_numa_cpu_node,
};
arch/x86/kernel/apic/ipi.c
+6 -6
View File
@@ -56,6 +56,8 @@ void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
local_irq_restore(flags);
}
#ifdef CONFIG_X86_32
void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
int vector)
{
@@ -71,8 +73,8 @@ void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
local_irq_save(flags);
for_each_cpu(query_cpu, mask)
__default_send_IPI_dest_field(
apic->cpu_to_logical_apicid(query_cpu), vector,
apic->dest_logical);
early_per_cpu(x86_cpu_to_logical_apicid, query_cpu),
vector, apic->dest_logical);
local_irq_restore(flags);
}
@@ -90,14 +92,12 @@ void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
if (query_cpu == this_cpu)
continue;
__default_send_IPI_dest_field(
apic->cpu_to_logical_apicid(query_cpu), vector,
apic->dest_logical);
early_per_cpu(x86_cpu_to_logical_apicid, query_cpu),
vector, apic->dest_logical);
}
local_irq_restore(flags);
}
#ifdef CONFIG_X86_32
/*
* This is only used on smaller machines.
*/
arch/x86/kernel/apic/numaq_32.c
+12 -9
View File
@@ -373,13 +373,6 @@ static inline void numaq_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask
return physids_promote(0xFUL, retmap);
}
static inline int numaq_cpu_to_logical_apicid(int cpu)
{
if (cpu >= nr_cpu_ids)
return BAD_APICID;
return cpu_2_logical_apicid[cpu];
}
/*
* Supporting over 60 cpus on NUMA-Q requires a locality-dependent
* cpu to APIC ID relation to properly interact with the intelligent
@@ -398,6 +391,15 @@ static inline int numaq_apicid_to_node(int logical_apicid)
return logical_apicid >> 4;
}
static int numaq_numa_cpu_node(int cpu)
{
int logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
if (logical_apicid != BAD_APICID)
return numaq_apicid_to_node(logical_apicid);
return NUMA_NO_NODE;
}
static void numaq_apicid_to_cpu_present(int logical_apicid, physid_mask_t *retmap)
{
int node = numaq_apicid_to_node(logical_apicid);
@@ -508,8 +510,6 @@ struct apic __refdata apic_numaq = {
.ioapic_phys_id_map = numaq_ioapic_phys_id_map,
.setup_apic_routing = numaq_setup_apic_routing,
.multi_timer_check = numaq_multi_timer_check,
.apicid_to_node = numaq_apicid_to_node,
.cpu_to_logical_apicid = numaq_cpu_to_logical_apicid,
.cpu_present_to_apicid = numaq_cpu_present_to_apicid,
.apicid_to_cpu_present = numaq_apicid_to_cpu_present,
.setup_portio_remap = numaq_setup_portio_remap,
@@ -547,4 +547,7 @@ struct apic __refdata apic_numaq = {
.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 = noop_x86_32_early_logical_apicid,
.x86_32_numa_cpu_node = numaq_numa_cpu_node,
};
arch/x86/kernel/apic/probe_32.c
+8 -2
View File
@@ -77,6 +77,11 @@ void __init default_setup_apic_routing(void)
apic->setup_apic_routing();
}
static int default_x86_32_early_logical_apicid(int cpu)
{
return 1 << cpu;
}
static void setup_apic_flat_routing(void)
{
#ifdef CONFIG_X86_IO_APIC
@@ -130,8 +135,6 @@ struct apic apic_default = {
.ioapic_phys_id_map = default_ioapic_phys_id_map,
.setup_apic_routing = setup_apic_flat_routing,
.multi_timer_check = NULL,
.apicid_to_node = default_apicid_to_node,
.cpu_to_logical_apicid = default_cpu_to_logical_apicid,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = physid_set_mask_of_physid,
.setup_portio_remap = NULL,
@@ -167,6 +170,9 @@ struct apic apic_default = {
.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 = default_x86_32_early_logical_apicid,
.x86_32_numa_cpu_node = default_x86_32_numa_cpu_node,
};
extern struct apic apic_numaq;
arch/x86/kernel/apic/summit_32.c
+17 -30
View File
@@ -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,
};
arch/x86/kernel/apic/x2apic_cluster.c
-2
View File
@@ -206,8 +206,6 @@ struct apic apic_x2apic_cluster = {
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.multi_timer_check = NULL,
.apicid_to_node = NULL,
.cpu_to_logical_apicid = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = NULL,
.setup_portio_remap = NULL,
arch/x86/kernel/apic/x2apic_phys.c
-2
View File
@@ -195,8 +195,6 @@ struct apic apic_x2apic_phys = {
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.multi_timer_check = NULL,
.apicid_to_node = NULL,
.cpu_to_logical_apicid = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = NULL,
.setup_portio_remap = NULL,
arch/x86/kernel/apic/x2apic_uv_x.c
-2
View File
@@ -338,8 +338,6 @@ struct apic __refdata apic_x2apic_uv_x = {
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.multi_timer_check = NULL,
.apicid_to_node = NULL,
.cpu_to_logical_apicid = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
.apicid_to_cpu_present = NULL,
.setup_portio_remap = NULL,
arch/x86/kernel/cpu/amd.c
+32 -19
View File
@@ -233,18 +233,22 @@ static void __cpuinit init_amd_k7(struct cpuinfo_x86 *c)
}
#endif
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
#ifdef CONFIG_NUMA
/*
* To workaround broken NUMA config. Read the comment in
* srat_detect_node().
*/
static int __cpuinit nearby_node(int apicid)
{
int i, node;
for (i = apicid - 1; i >= 0; i--) {
node = apicid_to_node[i];
node = __apicid_to_node[i];
if (node != NUMA_NO_NODE && node_online(node))
return node;
}
for (i = apicid + 1; i < MAX_LOCAL_APIC; i++) {
node = apicid_to_node[i];
node = __apicid_to_node[i];
if (node != NUMA_NO_NODE && node_online(node))
return node;
}
@@ -334,31 +338,40 @@ EXPORT_SYMBOL_GPL(amd_get_nb_id);
static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
{
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
#ifdef CONFIG_NUMA
int cpu = smp_processor_id();
int node;
unsigned apicid = c->apicid;
node = per_cpu(cpu_llc_id, cpu);
node = numa_cpu_node(cpu);
if (node == NUMA_NO_NODE)
node = per_cpu(cpu_llc_id, cpu);
if (apicid_to_node[apicid] != NUMA_NO_NODE)
node = apicid_to_node[apicid];
if (!node_online(node)) {
/* Two possibilities here:
- The CPU is missing memory and no node was created.
In that case try picking one from a nearby CPU
- The APIC IDs differ from the HyperTransport node IDs
which the K8 northbridge parsing fills in.
Assume they are all increased by a constant offset,
but in the same order as the HT nodeids.
If that doesn't result in a usable node fall back to the
path for the previous case. */
/*
* Two possibilities here:
*
* - The CPU is missing memory and no node was created. In
* that case try picking one from a nearby CPU.
*
* - The APIC IDs differ from the HyperTransport node IDs
* which the K8 northbridge parsing fills in. Assume
* they are all increased by a constant offset, but in
* the same order as the HT nodeids. If that doesn't
* result in a usable node fall back to the path for the
* previous case.
*
* This workaround operates directly on the mapping between
* APIC ID and NUMA node, assuming certain relationship
* between APIC ID, HT node ID and NUMA topology. As going
* through CPU mapping may alter the outcome, directly
* access __apicid_to_node[].
*/
int ht_nodeid = c->initial_apicid;
if (ht_nodeid >= 0 &&
apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
node = apicid_to_node[ht_nodeid];
__apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
node = __apicid_to_node[ht_nodeid];
/* Pick a nearby node */
if (!node_online(node))
node = nearby_node(apicid);
arch/x86/kernel/cpu/common.c
+1 -1
View File
@@ -869,7 +869,7 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
select_idle_routine(c);
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
#ifdef CONFIG_NUMA
numa_add_cpu(smp_processor_id());
#endif
}
arch/x86/kernel/cpu/intel.c
+2 -3
View File
@@ -276,14 +276,13 @@ static void __cpuinit intel_workarounds(struct cpuinfo_x86 *c)
static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
{
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
#ifdef CONFIG_NUMA
unsigned node;
int cpu = smp_processor_id();
int apicid = cpu_has_apic ? hard_smp_processor_id() : c->apicid;
/* Don't do the funky fallback heuristics the AMD version employs
for now. */
node = apicid_to_node[apicid];
node = numa_cpu_node(cpu);
if (node == NUMA_NO_NODE || !node_online(node)) {
/* reuse the value from init_cpu_to_node() */
node = cpu_to_node(cpu);
arch/x86/kernel/setup.c
-2
View File
@@ -1047,9 +1047,7 @@ void __init setup_arch(char **cmdline_p)
prefill_possible_map();
#ifdef CONFIG_X86_64
init_cpu_to_node();
#endif
init_apic_mappings();
ioapic_and_gsi_init();
arch/x86/kernel/setup_percpu.c
+9 -2
View File
@@ -225,10 +225,15 @@ void __init setup_per_cpu_areas(void)
per_cpu(x86_bios_cpu_apicid, cpu) =
early_per_cpu_map(x86_bios_cpu_apicid, cpu);
#endif
#ifdef CONFIG_X86_32
per_cpu(x86_cpu_to_logical_apicid, cpu) =
early_per_cpu_map(x86_cpu_to_logical_apicid, cpu);
#endif
#ifdef CONFIG_X86_64
per_cpu(irq_stack_ptr, cpu) =
per_cpu(irq_stack_union.irq_stack, cpu) +
IRQ_STACK_SIZE - 64;
#endif
#ifdef CONFIG_NUMA
per_cpu(x86_cpu_to_node_map, cpu) =
early_per_cpu_map(x86_cpu_to_node_map, cpu);
@@ -241,7 +246,6 @@ void __init setup_per_cpu_areas(void)
* So set them all (boot cpu and all APs).
*/
set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
#endif
#endif
/*
* Up to this point, the boot CPU has been using .init.data
@@ -256,7 +260,10 @@ void __init setup_per_cpu_areas(void)
early_per_cpu_ptr(x86_cpu_to_apicid) = NULL;
early_per_cpu_ptr(x86_bios_cpu_apicid) = NULL;
#endif
#if defined(CONFIG_X86_64) && defined(CONFIG_NUMA)
#ifdef CONFIG_X86_32
early_per_cpu_ptr(x86_cpu_to_logical_apicid) = NULL;
#endif
#ifdef CONFIG_NUMA
early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
#endif
arch/x86/kernel/smpboot.c
+1 -67
View File
@@ -71,10 +71,6 @@
#include <asm/smpboot_hooks.h>
#include <asm/i8259.h>
#ifdef CONFIG_X86_32
u8 apicid_2_node[MAX_APICID];
#endif
/* State of each CPU */
DEFINE_PER_CPU(int, cpu_state) = { 0 };
@@ -136,62 +132,6 @@ EXPORT_PER_CPU_SYMBOL(cpu_info);
atomic_t init_deasserted;
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_32)
/* which node each logical CPU is on */
int cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
EXPORT_SYMBOL(cpu_to_node_map);
/* set up a mapping between cpu and node. */
static void map_cpu_to_node(int cpu, int node)
{
printk(KERN_INFO "Mapping cpu %d to node %d\n", cpu, node);
cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
cpu_to_node_map[cpu] = node;
}
/* undo a mapping between cpu and node. */
static void unmap_cpu_to_node(int cpu)
{
int node;
printk(KERN_INFO "Unmapping cpu %d from all nodes\n", cpu);
for (node = 0; node < MAX_NUMNODES; node++)
cpumask_clear_cpu(cpu, node_to_cpumask_map[node]);
cpu_to_node_map[cpu] = 0;
}
#else /* !(CONFIG_NUMA && CONFIG_X86_32) */
#define map_cpu_to_node(cpu, node) ({})
#define unmap_cpu_to_node(cpu) ({})
#endif
#ifdef CONFIG_X86_32
static int boot_cpu_logical_apicid;
u8 cpu_2_logical_apicid[NR_CPUS] __read_mostly =
{ [0 ... NR_CPUS-1] = BAD_APICID };
static void map_cpu_to_logical_apicid(void)
{
int cpu = smp_processor_id();
int apicid = logical_smp_processor_id();
int node = apic->apicid_to_node(apicid);
if (!node_online(node))
node = first_online_node;
cpu_2_logical_apicid[cpu] = apicid;
map_cpu_to_node(cpu, node);
}
void numa_remove_cpu(int cpu)
{
cpu_2_logical_apicid[cpu] = BAD_APICID;
unmap_cpu_to_node(cpu);
}
#else
#define map_cpu_to_logical_apicid() do {} while (0)
#endif
/*
* Report back to the Boot Processor.
* Running on AP.
@@ -259,7 +199,6 @@ static void __cpuinit smp_callin(void)
apic->smp_callin_clear_local_apic();
setup_local_APIC();
end_local_APIC_setup();
map_cpu_to_logical_apicid();
/*
* Need to setup vector mappings before we enable interrupts.
@@ -960,7 +899,6 @@ static __init void disable_smp(void)
physid_set_mask_of_physid(boot_cpu_physical_apicid, &phys_cpu_present_map);
else
physid_set_mask_of_physid(0, &phys_cpu_present_map);
map_cpu_to_logical_apicid();
cpumask_set_cpu(0, cpu_sibling_mask(0));
cpumask_set_cpu(0, cpu_core_mask(0));
}
@@ -1096,9 +1034,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
* Setup boot CPU information
*/
smp_store_cpu_info(0); /* Final full version of the data */
#ifdef CONFIG_X86_32
boot_cpu_logical_apicid = logical_smp_processor_id();
#endif
current_thread_info()->cpu = 0; /* needed? */
for_each_possible_cpu(i) {
zalloc_cpumask_var(&per_cpu(cpu_sibling_map, i), GFP_KERNEL);
@@ -1139,8 +1075,6 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
end_local_APIC_setup();
map_cpu_to_logical_apicid();
if (apic->setup_portio_remap)
apic->setup_portio_remap();