diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2017-09-13 23:29:25 +0200 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-25 20:51:51 +0200 |
commit | c1d1ee9ac1793d939ba1a1322767cc5f77a5b8fe (patch) | |
tree | b1b2d7fa372554da3d8a323d5bd0bd0e499a3e92 /arch/x86/kernel/apic | |
parent | 023a611748fd58d46c8aa049cf4f22ebada983f5 (diff) |
x86/apic: Get rid of apic->target_cpus
The target_cpus() callback of the apic struct is not really useful. Some
APICs return cpu_online_mask and others cpus_all_mask. The latter is bogus
as it does not take holes in the cpus_possible_mask into account.
Replace it with cpus_online_mask which makes the most sense and remove the
callback.
The usage sites will be removed in a later step anyway, so get rid of it
now to have incremental changes.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213154.070850916@linutronix.de
Diffstat (limited to 'arch/x86/kernel/apic')
-rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 14 | ||||
-rw-r--r-- | arch/x86/kernel/apic/apic_flat_64.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/apic/apic_noop.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/apic/apic_numachip.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/apic/bigsmp_32.c | 1 | ||||
-rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/apic/probe_32.c | 1 | ||||
-rw-r--r-- | arch/x86/kernel/apic/vector.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/apic/x2apic_cluster.c | 8 | ||||
-rw-r--r-- | arch/x86/kernel/apic/x2apic_phys.c | 1 | ||||
-rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 1 |
11 files changed, 5 insertions, 41 deletions
diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c index 43f9eac53437..4791654cdeb2 100644 --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -78,20 +78,6 @@ int default_check_phys_apicid_present(int phys_apicid) return physid_isset(phys_apicid, phys_cpu_present_map); } -const struct cpumask *default_target_cpus(void) -{ -#ifdef CONFIG_SMP - return cpu_online_mask; -#else - return cpumask_of(0); -#endif -} - -const struct cpumask *online_target_cpus(void) -{ - return cpu_online_mask; -} - int default_apic_id_valid(int apicid) { return (apicid < 255); diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c index 6543648f0b81..7ca354dee8af 100644 --- a/arch/x86/kernel/apic/apic_flat_64.c +++ b/arch/x86/kernel/apic/apic_flat_64.c @@ -154,7 +154,6 @@ static struct apic apic_flat __ro_after_init = { .irq_delivery_mode = dest_LowestPrio, .irq_dest_mode = 1, /* logical */ - .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = NULL, @@ -249,7 +248,6 @@ static struct apic apic_physflat __ro_after_init = { .irq_delivery_mode = dest_Fixed, .irq_dest_mode = 0, /* physical */ - .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = 0, .check_apicid_used = NULL, diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c index c2c6bac28e79..a8a7cb1347dc 100644 --- a/arch/x86/kernel/apic/apic_noop.c +++ b/arch/x86/kernel/apic/apic_noop.c @@ -83,12 +83,6 @@ static int noop_apic_id_registered(void) return physid_isset(0, phys_cpu_present_map); } -static const struct cpumask *noop_target_cpus(void) -{ - /* only BSP here */ - return cpumask_of(0); -} - static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask, const struct cpumask *mask) { @@ -127,7 +121,6 @@ struct apic apic_noop __ro_after_init = { /* logical delivery broadcast to all CPUs: */ .irq_dest_mode = 1, - .target_cpus = noop_target_cpus, .disable_esr = 0, .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = default_check_apicid_used, diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c index d77c8cc4afc2..cc2f8843391f 100644 --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -249,7 +249,6 @@ static const struct apic apic_numachip1 __refconst = { .irq_delivery_mode = dest_Fixed, .irq_dest_mode = 0, /* physical */ - .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = 0, .check_apicid_used = NULL, @@ -300,7 +299,6 @@ static const struct apic apic_numachip2 __refconst = { .irq_delivery_mode = dest_Fixed, .irq_dest_mode = 0, /* physical */ - .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = 0, .check_apicid_used = NULL, diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c index 6eb5f10f1599..72a1a0385549 100644 --- a/arch/x86/kernel/apic/bigsmp_32.c +++ b/arch/x86/kernel/apic/bigsmp_32.c @@ -154,7 +154,6 @@ static struct apic apic_bigsmp __ro_after_init = { /* phys delivery to target CPU: */ .irq_dest_mode = 0, - .target_cpus = default_target_cpus, .disable_esr = 1, .dest_logical = 0, .check_apicid_used = bigsmp_check_apicid_used, diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 11702d92407d..d8c75d61f766 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2553,9 +2553,8 @@ int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) } /* - * This function currently is only a helper for the i386 smp boot process where - * we need to reprogram the ioredtbls to cater for the cpus which have come online - * so mask in all cases should simply be apic->target_cpus() + * This function updates target affinity of IOAPIC interrupts to include + * the CPUs which came online during SMP bringup. */ #ifdef CONFIG_SMP void __init setup_ioapic_dest(void) @@ -2588,7 +2587,7 @@ void __init setup_ioapic_dest(void) if (!irqd_can_balance(idata) || irqd_affinity_was_set(idata)) mask = irq_data_get_affinity_mask(idata); else - mask = apic->target_cpus(); + mask = irq_default_affinity; chip = irq_data_get_irq_chip(idata); /* Might be lapic_chip for irq 0 */ diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c index 12d171204c8a..95125bfb4e09 100644 --- a/arch/x86/kernel/apic/probe_32.c +++ b/arch/x86/kernel/apic/probe_32.c @@ -109,7 +109,6 @@ static struct apic apic_default __ro_after_init = { /* logical delivery broadcast to all CPUs: */ .irq_dest_mode = 1, - .target_cpus = default_target_cpus, .disable_esr = 0, .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = default_check_apicid_used, diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 88c214e75a6b..b6b963e42028 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -255,7 +255,7 @@ static int assign_irq_vector_policy(int irq, int node, if (node != NUMA_NO_NODE && assign_irq_vector(irq, data, cpumask_of_node(node), irqdata) == 0) return 0; - return assign_irq_vector(irq, data, apic->target_cpus(), irqdata); + return assign_irq_vector(irq, data, cpu_online_mask, irqdata); } static void clear_irq_vector(int irq, struct apic_chip_data *data) diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c index 729c0a512b72..c1684f27226e 100644 --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -193,11 +193,6 @@ static int x2apic_cluster_probe(void) return 1; } -static const struct cpumask *x2apic_cluster_target_cpus(void) -{ - return cpu_all_mask; -} - /* * Each x2apic cluster is an allocation domain. */ @@ -215,7 +210,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask, * derived from the first cpu in the mask) members specified * in the mask. */ - if (mask == x2apic_cluster_target_cpus()) + if (cpumask_equal(mask, cpu_online_mask)) cpumask_copy(retmask, cpumask_of(cpu)); else cpumask_and(retmask, mask, &cmsk->mask); @@ -232,7 +227,6 @@ static struct apic apic_x2apic_cluster __ro_after_init = { .irq_delivery_mode = dest_LowestPrio, .irq_dest_mode = 1, /* logical */ - .target_cpus = x2apic_cluster_target_cpus, .disable_esr = 0, .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = NULL, diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index 315c44eda399..6903e69a7b60 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -147,7 +147,6 @@ static struct apic apic_x2apic_phys __ro_after_init = { .irq_delivery_mode = dest_Fixed, .irq_dest_mode = 0, /* physical */ - .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = 0, .check_apicid_used = NULL, diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 1b23b9e0a8af..9f6d551deeb4 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -584,7 +584,6 @@ static struct apic apic_x2apic_uv_x __ro_after_init = { .irq_delivery_mode = dest_Fixed, .irq_dest_mode = 0, /* Physical */ - .target_cpus = online_target_cpus, .disable_esr = 0, .dest_logical = APIC_DEST_LOGICAL, .check_apicid_used = NULL, |