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

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Pull x86 apic updates from Ingo Molnar:
 "The main changes are:

   - Persistent CPU/node numbering across CPU hotplug/unplug events.
     This is a pretty involved series of changes that first fetches all
     the information during bootup and then uses it for the various
     hotplug/unplug methods. (Gu Zheng, Dou Liyang)

   - IO-APIC hot-add/remove fixes and enhancements. (Rui Wang)

   - ... various fixes, cleanups and enhancements"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  x86/apic: Fix silent & fatal merge conflict in __generic_processor_info()
  acpi: Fix broken error check in map_processor()
  acpi: Validate processor id when mapping the processor
  acpi: Provide mechanism to validate processors in the ACPI tables
  x86/acpi: Set persistent cpuid <-> nodeid mapping when booting
  x86/acpi: Enable MADT APIs to return disabled apicids
  x86/acpi: Introduce persistent storage for cpuid <-> apicid mapping
  x86/acpi: Enable acpi to register all possible cpus at boot time
  x86/numa: Online memory-less nodes at boot time
  x86/apic: Get rid of apic_version[] array
  x86/apic: Order irq_enter/exit() calls correctly vs. ack_APIC_irq()
  x86/ioapic: Ignore root bridges without a companion ACPI device
  x86/apic: Update comment about disabling processor focus
  x86/smpboot: Check APIC ID before setting up default routing
  x86/ioapic: Fix IOAPIC failing to request resource
  x86/ioapic: Fix lost IOAPIC resource after hot-removal and hotadd
  x86/ioapic: Fix setup_res() failing to get resource
  x86/ioapic: Support hot-removal of IOAPICs present during boot
  x86/ioapic: Change prototype of acpi_ioapic_add()
  x86/apic, ACPI: Fix incorrect assignment when handling apic/x2apic entries
  ...
This commit is contained in:
Linus Torvalds
2016-10-03 15:36:06 -07:00
parent af79ad2b1f eb6296dec1
commit 110a9e42b6
20 changed files with 392 additions and 138 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
arch/x86/kernel/acpi/boot.c
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@@ -176,15 +176,10 @@ static int acpi_register_lapic(int id, u32 acpiid, u8 enabled)
return -EINVAL;
}
if (!enabled) {
++disabled_cpus;
return -EINVAL;
}
if (boot_cpu_physical_apicid != -1U)
ver = apic_version[boot_cpu_physical_apicid];
ver = boot_cpu_apic_version;
cpu = generic_processor_info(id, ver);
cpu = __generic_processor_info(id, ver, enabled);
if (cpu >= 0)
early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid;
@@ -282,6 +277,8 @@ acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header,
if (BAD_MADT_ENTRY(lapic_addr_ovr, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
acpi_lapic_addr = lapic_addr_ovr->address;
return 0;
@@ -705,7 +702,7 @@ static void __init acpi_set_irq_model_ioapic(void)
#ifdef CONFIG_ACPI_HOTPLUG_CPU
#include <acpi/processor.h>
static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
int nid;
@@ -716,6 +713,7 @@ static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
numa_set_node(cpu, nid);
}
#endif
return 0;
}
int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu)
@@ -998,21 +996,6 @@ static int __init acpi_parse_madt_lapic_entries(void)
if (!boot_cpu_has(X86_FEATURE_APIC))
return -ENODEV;
/*
* Note that the LAPIC address is obtained from the MADT (32-bit value)
* and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value).
*/
count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE,
acpi_parse_lapic_addr_ovr, 0);
if (count < 0) {
printk(KERN_ERR PREFIX
"Error parsing LAPIC address override entry\n");
return count;
}
register_lapic_address(acpi_lapic_addr);
count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
acpi_parse_sapic, MAX_LOCAL_APIC);