diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 48 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/apic_flat_64.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/apic_noop.c | 10 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/apic_numachip.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/bigsmp_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/probe_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_cluster.c | 48 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_phys.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 14 | ||||
| -rw-r--r-- | arch/x86/kernel/vsmp_64.c | 19 | ||||
| -rw-r--r-- | arch/x86/xen/apic.c | 2 |
11 files changed, 0 insertions, 155 deletions
diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c index ddc6a4301588..a360801779ae 100644 --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -11,64 +11,16 @@ u32 apic_default_calc_apicid(unsigned int cpu) return per_cpu(x86_cpu_to_apicid, cpu); } -int default_cpu_mask_to_apicid(const struct cpumask *msk, struct irq_data *irqd, - unsigned int *apicid) -{ - unsigned int cpu = cpumask_first(msk); - - if (cpu >= nr_cpu_ids) - return -EINVAL; - *apicid = per_cpu(x86_cpu_to_apicid, cpu); - irq_data_update_effective_affinity(irqd, cpumask_of(cpu)); - return 0; -} - u32 apic_flat_calc_apicid(unsigned int cpu) { return 1U << cpu; } -int flat_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqd, - unsigned int *apicid) - -{ - struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqd); - unsigned long cpu_mask = cpumask_bits(mask)[0] & APIC_ALL_CPUS; - - if (!cpu_mask) - return -EINVAL; - *apicid = (unsigned int)cpu_mask; - cpumask_bits(effmsk)[0] = cpu_mask; - return 0; -} - bool default_check_apicid_used(physid_mask_t *map, int apicid) { return physid_isset(apicid, *map); } -void flat_vector_allocation_domain(int cpu, struct cpumask *retmask, - const struct cpumask *mask) -{ - /* - * Careful. Some cpus do not strictly honor the set of cpus - * specified in the interrupt destination when using lowest - * priority interrupt delivery mode. - * - * In particular there was a hyperthreading cpu observed to - * deliver interrupts to the wrong hyperthread when only one - * hyperthread was specified in the interrupt desitination. - */ - cpumask_clear(retmask); - cpumask_bits(retmask)[0] = APIC_ALL_CPUS; -} - -void default_vector_allocation_domain(int cpu, struct cpumask *retmask, - const struct cpumask *mask) -{ - cpumask_copy(retmask, cpumask_of(cpu)); -} - void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap) { *retmap = *phys_map; diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c index 697704443fda..aa85690e9b64 100644 --- a/arch/x86/kernel/apic/apic_flat_64.c +++ b/arch/x86/kernel/apic/apic_flat_64.c @@ -158,7 +158,6 @@ static struct apic apic_flat __ro_after_init = { .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = NULL, - .vector_allocation_domain = flat_vector_allocation_domain, .init_apic_ldr = flat_init_apic_ldr, .ioapic_phys_id_map = NULL, @@ -171,7 +170,6 @@ static struct apic apic_flat __ro_after_init = { .get_apic_id = flat_get_apic_id, .set_apic_id = set_apic_id, - .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, .calc_dest_apicid = apic_flat_calc_apicid, .send_IPI = default_send_IPI_single, @@ -253,7 +251,6 @@ static struct apic apic_physflat __ro_after_init = { .dest_logical = 0, .check_apicid_used = NULL, - .vector_allocation_domain = default_vector_allocation_domain, /* not needed, but shouldn't hurt: */ .init_apic_ldr = flat_init_apic_ldr, @@ -267,7 +264,6 @@ static struct apic apic_physflat __ro_after_init = { .get_apic_id = flat_get_apic_id, .set_apic_id = set_apic_id, - .cpu_mask_to_apicid = default_cpu_mask_to_apicid, .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = default_send_IPI_single_phys, diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c index d8c24e6f1a11..0285f28d531a 100644 --- a/arch/x86/kernel/apic/apic_noop.c +++ b/arch/x86/kernel/apic/apic_noop.c @@ -83,14 +83,6 @@ static int noop_apic_id_registered(void) return physid_isset(0, phys_cpu_present_map); } -static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask, - const struct cpumask *mask) -{ - if (cpu != 0) - pr_warning("APIC: Vector allocated for non-BSP cpu\n"); - cpumask_copy(retmask, cpumask_of(cpu)); -} - static u32 noop_apic_read(u32 reg) { WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_APIC) && !disable_apic); @@ -125,7 +117,6 @@ struct apic apic_noop __ro_after_init = { .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = default_check_apicid_used, - .vector_allocation_domain = noop_vector_allocation_domain, .init_apic_ldr = noop_init_apic_ldr, .ioapic_phys_id_map = default_ioapic_phys_id_map, @@ -141,7 +132,6 @@ struct apic apic_noop __ro_after_init = { .get_apic_id = noop_get_apic_id, .set_apic_id = NULL, - .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, .calc_dest_apicid = apic_flat_calc_apicid, .send_IPI = noop_send_IPI, diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c index 4ec293b30eb8..134e04506ab4 100644 --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -253,7 +253,6 @@ static const struct apic apic_numachip1 __refconst = { .dest_logical = 0, .check_apicid_used = NULL, - .vector_allocation_domain = default_vector_allocation_domain, .init_apic_ldr = flat_init_apic_ldr, .ioapic_phys_id_map = NULL, @@ -266,7 +265,6 @@ static const struct apic apic_numachip1 __refconst = { .get_apic_id = numachip1_get_apic_id, .set_apic_id = numachip1_set_apic_id, - .cpu_mask_to_apicid = default_cpu_mask_to_apicid, .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = numachip_send_IPI_one, @@ -304,7 +302,6 @@ static const struct apic apic_numachip2 __refconst = { .dest_logical = 0, .check_apicid_used = NULL, - .vector_allocation_domain = default_vector_allocation_domain, .init_apic_ldr = flat_init_apic_ldr, .ioapic_phys_id_map = NULL, @@ -317,7 +314,6 @@ static const struct apic apic_numachip2 __refconst = { .get_apic_id = numachip2_get_apic_id, .set_apic_id = numachip2_set_apic_id, - .cpu_mask_to_apicid = default_cpu_mask_to_apicid, .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = numachip_send_IPI_one, diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c index de2e8597f2df..7b754c513fa5 100644 --- a/arch/x86/kernel/apic/bigsmp_32.c +++ b/arch/x86/kernel/apic/bigsmp_32.c @@ -158,7 +158,6 @@ static struct apic apic_bigsmp __ro_after_init = { .dest_logical = 0, .check_apicid_used = bigsmp_check_apicid_used, - .vector_allocation_domain = default_vector_allocation_domain, .init_apic_ldr = bigsmp_init_apic_ldr, .ioapic_phys_id_map = bigsmp_ioapic_phys_id_map, @@ -171,7 +170,6 @@ static struct apic apic_bigsmp __ro_after_init = { .get_apic_id = bigsmp_get_apic_id, .set_apic_id = NULL, - .cpu_mask_to_apicid = default_cpu_mask_to_apicid, .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = default_send_IPI_single_phys, diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c index 6a9020a3c243..fa22017de806 100644 --- a/arch/x86/kernel/apic/probe_32.c +++ b/arch/x86/kernel/apic/probe_32.c @@ -113,7 +113,6 @@ static struct apic apic_default __ro_after_init = { .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = default_check_apicid_used, - .vector_allocation_domain = flat_vector_allocation_domain, .init_apic_ldr = default_init_apic_ldr, .ioapic_phys_id_map = default_ioapic_phys_id_map, @@ -126,7 +125,6 @@ static struct apic apic_default __ro_after_init = { .get_apic_id = default_get_apic_id, .set_apic_id = NULL, - .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, .calc_dest_apicid = apic_flat_calc_apicid, .send_IPI = default_send_IPI_single, diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c index 17bf63f580d7..3da94277140f 100644 --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -91,29 +91,6 @@ static void x2apic_send_IPI_all(int vector) __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC); } -static int -x2apic_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata, - unsigned int *apicid) -{ - struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata); - struct cluster_mask *cmsk; - unsigned int cpu; - u32 dest = 0; - - cpu = cpumask_first(mask); - if (cpu >= nr_cpu_ids) - return -EINVAL; - - cmsk = per_cpu(cluster_masks, cpu); - cpumask_clear(effmsk); - for_each_cpu_and(cpu, &cmsk->mask, mask) { - dest |= per_cpu(x86_cpu_to_logical_apicid, cpu); - cpumask_set_cpu(cpu, effmsk); - } - *apicid = dest; - return 0; -} - static u32 x2apic_calc_apicid(unsigned int cpu) { return per_cpu(x86_cpu_to_logical_apicid, cpu); @@ -198,29 +175,6 @@ static int x2apic_cluster_probe(void) return 1; } -/* - * Each x2apic cluster is an allocation domain. - */ -static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask, - const struct cpumask *mask) -{ - struct cluster_mask *cmsk = per_cpu(cluster_masks, cpu); - - /* - * To minimize vector pressure, default case of boot, device bringup - * etc will use a single cpu for the interrupt destination. - * - * On explicit migration requests coming from irqbalance etc, - * interrupts will be routed to the x2apic cluster (cluster-id - * derived from the first cpu in the mask) members specified - * in the mask. - */ - if (cpumask_equal(mask, cpu_online_mask)) - cpumask_copy(retmask, cpumask_of(cpu)); - else - cpumask_and(retmask, mask, &cmsk->mask); -} - static struct apic apic_x2apic_cluster __ro_after_init = { .name = "cluster x2apic", @@ -236,7 +190,6 @@ static struct apic apic_x2apic_cluster __ro_after_init = { .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = NULL, - .vector_allocation_domain = cluster_vector_allocation_domain, .init_apic_ldr = init_x2apic_ldr, .ioapic_phys_id_map = NULL, @@ -249,7 +202,6 @@ static struct apic apic_x2apic_cluster __ro_after_init = { .get_apic_id = x2apic_get_apic_id, .set_apic_id = x2apic_set_apic_id, - .cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid, .calc_dest_apicid = x2apic_calc_apicid, .send_IPI = x2apic_send_IPI, diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index ebad7ddbfdfc..17c2c5b0b7b9 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -151,7 +151,6 @@ static struct apic apic_x2apic_phys __ro_after_init = { .dest_logical = 0, .check_apicid_used = NULL, - .vector_allocation_domain = default_vector_allocation_domain, .init_apic_ldr = init_x2apic_ldr, .ioapic_phys_id_map = NULL, @@ -164,7 +163,6 @@ static struct apic apic_x2apic_phys __ro_after_init = { .get_apic_id = x2apic_get_apic_id, .set_apic_id = x2apic_set_apic_id, - .cpu_mask_to_apicid = default_cpu_mask_to_apicid, .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = x2apic_send_IPI, diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 99c3c039646d..5832df6d9c37 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -525,18 +525,6 @@ static void uv_init_apic_ldr(void) { } -static int -uv_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata, - unsigned int *apicid) -{ - int ret = default_cpu_mask_to_apicid(mask, irqdata, apicid); - - if (!ret) - *apicid |= uv_apicid_hibits; - - return ret; -} - static u32 apic_uv_calc_apicid(unsigned int cpu) { return apic_default_calc_apicid(cpu) | uv_apicid_hibits; @@ -593,7 +581,6 @@ static struct apic apic_x2apic_uv_x __ro_after_init = { .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = NULL, - .vector_allocation_domain = default_vector_allocation_domain, .init_apic_ldr = uv_init_apic_ldr, .ioapic_phys_id_map = NULL, @@ -606,7 +593,6 @@ static struct apic apic_x2apic_uv_x __ro_after_init = { .get_apic_id = x2apic_get_apic_id, .set_apic_id = set_apic_id, - .cpu_mask_to_apicid = uv_cpu_mask_to_apicid, .calc_dest_apicid = apic_uv_calc_apicid, .send_IPI = uv_send_IPI_one, diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c index b034b1b14b9c..44685fb2a192 100644 --- a/arch/x86/kernel/vsmp_64.c +++ b/arch/x86/kernel/vsmp_64.c @@ -26,9 +26,6 @@ #define TOPOLOGY_REGISTER_OFFSET 0x10 -/* Flag below is initialized once during vSMP PCI initialization. */ -static int irq_routing_comply = 1; - #if defined CONFIG_PCI && defined CONFIG_PARAVIRT /* * Interrupt control on vSMPowered systems: @@ -105,9 +102,6 @@ static void __init set_vsmp_pv_ops(void) if (cap & ctl & BIT(8)) { ctl &= ~BIT(8); - /* Interrupt routing set to ignore */ - irq_routing_comply = 0; - #ifdef CONFIG_PROC_FS /* Don't let users change irq affinity via procfs */ no_irq_affinity = 1; @@ -211,23 +205,10 @@ static int apicid_phys_pkg_id(int initial_apic_id, int index_msb) return hard_smp_processor_id() >> index_msb; } -/* - * In vSMP, all cpus should be capable of handling interrupts, regardless of - * the APIC used. - */ -static void fill_vector_allocation_domain(int cpu, struct cpumask *retmask, - const struct cpumask *mask) -{ - cpumask_setall(retmask); -} - static void vsmp_apic_post_init(void) { /* need to update phys_pkg_id */ apic->phys_pkg_id = apicid_phys_pkg_id; - - if (!irq_routing_comply) - apic->vector_allocation_domain = fill_vector_allocation_domain; } void __init vsmp_init(void) diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c index fb8522bed08c..4ba3fd7039b0 100644 --- a/arch/x86/xen/apic.c +++ b/arch/x86/xen/apic.c @@ -164,7 +164,6 @@ static struct apic xen_pv_apic = { /* .dest_logical - default_send_IPI_ use it but we use our own. */ .check_apicid_used = default_check_apicid_used, /* Used on 32-bit */ - .vector_allocation_domain = flat_vector_allocation_domain, .init_apic_ldr = xen_noop, /* setup_local_APIC calls it */ .ioapic_phys_id_map = default_ioapic_phys_id_map, /* Used on 32-bit */ @@ -177,7 +176,6 @@ static struct apic xen_pv_apic = { .get_apic_id = xen_get_apic_id, .set_apic_id = xen_set_apic_id, /* Can be NULL on 32-bit. */ - .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, .calc_dest_apicid = apic_flat_calc_apicid, #ifdef CONFIG_SMP |