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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-08-31 12:28:17 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-09-09 22:41:25 +0400 |
| commit | b40d8ed4e42c79f8ed1cf345eed0888f4a2f0678 (patch) | |
| tree | e7bfe98c1cbf21a871fee2c25640898c7b60bcfb /drivers/base | |
| parent | 01a08546af311c065f34727787dd0cc8dc0c216f (diff) | |
| download | linux-b40d8ed4e42c79f8ed1cf345eed0888f4a2f0678.tar.xz | |
topology/sysfs: Provide book id and siblings attributes
Create attributes:
/sys/devices/system/cpu/cpuX/topology/book_id
/sys/devices/system/cpu/cpuX/topology/book_siblings
which show the book id and the book siblings of a cpu.
Unlike the attributes for SMT and MC these attributes are only present if
CONFIG_SCHED_BOOK is set. There is no reason to pollute sysfs for every
architecture with unused attributes.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100831082844.435648457@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/topology.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/base/topology.c b/drivers/base/topology.c index 9fc630ce1ddb..f6f37a05a0c3 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -45,7 +45,8 @@ static ssize_t show_##name(struct sys_device *dev, \ return sprintf(buf, "%d\n", topology_##name(cpu)); \ } -#if defined(topology_thread_cpumask) || defined(topology_core_cpumask) +#if defined(topology_thread_cpumask) || defined(topology_core_cpumask) || \ + defined(topology_book_cpumask) static ssize_t show_cpumap(int type, const struct cpumask *mask, char *buf) { ptrdiff_t len = PTR_ALIGN(buf + PAGE_SIZE - 1, PAGE_SIZE) - buf; @@ -114,6 +115,14 @@ define_siblings_show_func(core_cpumask); define_one_ro_named(core_siblings, show_core_cpumask); define_one_ro_named(core_siblings_list, show_core_cpumask_list); +#ifdef CONFIG_SCHED_BOOK +define_id_show_func(book_id); +define_one_ro(book_id); +define_siblings_show_func(book_cpumask); +define_one_ro_named(book_siblings, show_book_cpumask); +define_one_ro_named(book_siblings_list, show_book_cpumask_list); +#endif + static struct attribute *default_attrs[] = { &attr_physical_package_id.attr, &attr_core_id.attr, @@ -121,6 +130,11 @@ static struct attribute *default_attrs[] = { &attr_thread_siblings_list.attr, &attr_core_siblings.attr, &attr_core_siblings_list.attr, +#ifdef CONFIG_SCHED_BOOK + &attr_book_id.attr, + &attr_book_siblings.attr, + &attr_book_siblings_list.attr, +#endif NULL }; |