xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge branch 'linus' into smp/hotplug

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Apply upstream changes to avoid conflicts with pending patches.
This commit is contained in:
Thomas Gleixner
2016-09-01 18:33:46 +02:00
parent aa877175e7 3eab887a55
commit 0cb7bf61b1
679 changed files with 8261 additions and 3854 deletions
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25
arch/x86/kernel/smpboot.c
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@@ -100,10 +100,11 @@ EXPORT_PER_CPU_SYMBOL(cpu_info);
/* Logical package management. We might want to allocate that dynamically */
static int *physical_to_logical_pkg __read_mostly;
static unsigned long *physical_package_map __read_mostly;;
static unsigned long *logical_package_map __read_mostly;
static unsigned int max_physical_pkg_id __read_mostly;
unsigned int __max_logical_packages __read_mostly;
EXPORT_SYMBOL(__max_logical_packages);
static unsigned int logical_packages __read_mostly;
static bool logical_packages_frozen __read_mostly;
/* Maximum number of SMT threads on any online core */
int __max_smt_threads __read_mostly;
@@ -277,14 +278,14 @@ int topology_update_package_map(unsigned int apicid, unsigned int cpu)
if (test_and_set_bit(pkg, physical_package_map))
goto found;
new = find_first_zero_bit(logical_package_map, __max_logical_packages);
if (new >= __max_logical_packages) {
if (logical_packages_frozen) {
physical_to_logical_pkg[pkg] = -1;
pr_warn("APIC(%x) Package %u exceeds logical package map\n",
pr_warn("APIC(%x) Package %u exceeds logical package max\n",
apicid, pkg);
return -ENOSPC;
}
set_bit(new, logical_package_map);
new = logical_packages++;
pr_info("APIC(%x) Converting physical %u to logical package %u\n",
apicid, pkg, new);
physical_to_logical_pkg[pkg] = new;
@@ -341,6 +342,7 @@ static void __init smp_init_package_map(void)
}
__max_logical_packages = DIV_ROUND_UP(total_cpus, ncpus);
logical_packages = 0;
/*
* Possibly larger than what we need as the number of apic ids per
@@ -352,10 +354,6 @@ static void __init smp_init_package_map(void)
memset(physical_to_logical_pkg, 0xff, size);
size = BITS_TO_LONGS(max_physical_pkg_id) * sizeof(unsigned long);
physical_package_map = kzalloc(size, GFP_KERNEL);
size = BITS_TO_LONGS(__max_logical_packages) * sizeof(unsigned long);
logical_package_map = kzalloc(size, GFP_KERNEL);
pr_info("Max logical packages: %u\n", __max_logical_packages);
for_each_present_cpu(cpu) {
unsigned int apicid = apic->cpu_present_to_apicid(cpu);
@@ -369,6 +367,15 @@ static void __init smp_init_package_map(void)
set_cpu_possible(cpu, false);
set_cpu_present(cpu, false);
}
if (logical_packages > __max_logical_packages) {
pr_warn("Detected more packages (%u), then computed by BIOS data (%u).\n",
logical_packages, __max_logical_packages);
logical_packages_frozen = true;
__max_logical_packages = logical_packages;
}
pr_info("Max logical packages: %u\n", __max_logical_packages);
}
void __init smp_store_boot_cpu_info(void)