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Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 platform changes from Ingo Molnar:
 "This tree mostly involves various APIC driver cleanups/robustization,
  and vSMP motivated platform callback improvements/cleanups"

Fix up trivial conflict due to printk cleanup right next to return value
change.

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()"
  x86/apic/x2apic: Use multiple cluster members for the irq destination only with the explicit affinity
  x86/apic/x2apic: Limit the vector reservation to the user specified mask
  x86/apic: Optimize cpu traversal in __assign_irq_vector() using domain membership
  x86/vsmp: Fix vector_allocation_domain's return value
  irq/apic: Use config_enabled(CONFIG_SMP) checks to clean up irq_set_affinity() for UP
  x86/vsmp: Fix linker error when CONFIG_PROC_FS is not set
  x86/apic/es7000: Make apicid of a cluster (not CPU) from a cpumask
  x86/apic/es7000+summit: Always make valid apicid from a cpumask
  x86/apic/es7000+summit: Fix compile warning in cpu_mask_to_apicid()
  x86/apic: Fix ugly casting and branching in cpu_mask_to_apicid_and()
  x86/apic: Eliminate cpu_mask_to_apicid() operation
  x86/x2apic/cluster: Vector_allocation_domain() should return a value
  x86/apic/irq_remap: Silence a bogus pr_err()
  x86/vsmp: Ignore IOAPIC IRQ affinity if possible
  x86/apic: Make cpu_mask_to_apicid() operations check cpu_online_mask
  x86/apic: Make cpu_mask_to_apicid() operations return error code
  x86/apic: Avoid useless scanning thru a cpumask in assign_irq_vector()
  x86/apic: Try to spread IRQ vectors to different priority levels
  x86/apic: Factor out default vector_allocation_domain() operation
  ...
This commit is contained in:
Linus Torvalds
2012-07-22 12:19:36 -07:00
parent 3fad0953a1 36d93d88a5
commit bd3e57f913
25 changed files with 431 additions and 583 deletions
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46
arch/x86/kernel/apic/summit_32.c
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@@ -265,43 +265,48 @@ static int summit_check_phys_apicid_present(int physical_apicid)
return 1;
}
static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
static inline int
summit_cpu_mask_to_apicid(const struct cpumask *cpumask, unsigned int *dest_id)
{
unsigned int round = 0;
int cpu, apicid = 0;
unsigned int cpu, apicid = 0;
/*
* The cpus in the mask must all be on the apic cluster.
*/
for_each_cpu(cpu, cpumask) {
for_each_cpu_and(cpu, cpumask, cpu_online_mask) {
int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
pr_err("Not a valid mask!\n");
return BAD_APICID;
return -EINVAL;
}
apicid |= new_apicid;
round++;
}
return apicid;
if (!round)
return -EINVAL;
*dest_id = apicid;
return 0;
}
static unsigned int summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
const struct cpumask *andmask)
static int
summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
const struct cpumask *andmask,
unsigned int *apicid)
{
int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
cpumask_var_t cpumask;
*apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
return apicid;
return 0;
cpumask_and(cpumask, inmask, andmask);
cpumask_and(cpumask, cpumask, cpu_online_mask);
apicid = summit_cpu_mask_to_apicid(cpumask);
summit_cpu_mask_to_apicid(cpumask, apicid);
free_cpumask_var(cpumask);
return apicid;
return 0;
}
/*
@@ -322,20 +327,6 @@ static int probe_summit(void)
return 0;
}
static void summit_vector_allocation_domain(int cpu, struct cpumask *retmask)
{
/* 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;
}
#ifdef CONFIG_X86_SUMMIT_NUMA
static struct rio_table_hdr *rio_table_hdr;
static struct scal_detail *scal_devs[MAX_NUMNODES];
@@ -513,7 +504,7 @@ static struct apic apic_summit = {
.check_apicid_used = summit_check_apicid_used,
.check_apicid_present = summit_check_apicid_present,
.vector_allocation_domain = summit_vector_allocation_domain,
.vector_allocation_domain = flat_vector_allocation_domain,
.init_apic_ldr = summit_init_apic_ldr,
.ioapic_phys_id_map = summit_ioapic_phys_id_map,
@@ -531,7 +522,6 @@ static struct apic apic_summit = {
.set_apic_id = NULL,
.apic_id_mask = 0xFF << 24,
.cpu_mask_to_apicid = summit_cpu_mask_to_apicid,
.cpu_mask_to_apicid_and = summit_cpu_mask_to_apicid_and,
.send_IPI_mask = summit_send_IPI_mask,