https://github.com/torvalds/linux
Revision bb668da6d6f2bec8a63838c098d9515eccb22cc4 authored by Suresh Siddha on 18 January 2010, 20:10:49 UTC, committed by Linus Torvalds on 18 January 2010, 22:15:28 UTC
We can use logical flat mode if there are <= 8 logical cpu's (irrespective of physical apic id values). This will enable simplified and efficient IPI and device interrupt routing on such platforms. This has been tested to work on both Intel and AMD platforms. Exceptions like IBM summit platform which can't use logical flat mode are addressed by using OEM platform checks. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Chris McDermott <lcm@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent dfea91d
Tip revision: bb668da6d6f2bec8a63838c098d9515eccb22cc4 authored by Suresh Siddha on 18 January 2010, 20:10:49 UTC
x86, apic: use logical flat for systems with <= 8 logical cpus
x86, apic: use logical flat for systems with <= 8 logical cpus
Tip revision: bb668da
| File | Mode | Size |
|---|---|---|
| lzo | ||
| reed_solomon | ||
| zlib_deflate | ||
| zlib_inflate | ||
| .gitignore | -rw-r--r-- | 51 bytes |
| Kconfig | -rw-r--r-- | 4.1 KB |
| Kconfig.debug | -rw-r--r-- | 36.4 KB |
| Kconfig.kgdb | -rw-r--r-- | 1.8 KB |
| Kconfig.kmemcheck | -rw-r--r-- | 2.9 KB |
| Makefile | -rw-r--r-- | 3.4 KB |
| argv_split.c | -rw-r--r-- | 1.8 KB |
| atomic64.c | -rw-r--r-- | 4.1 KB |
| audit.c | -rw-r--r-- | 1.2 KB |
| bcd.c | -rw-r--r-- | 257 bytes |
| bitmap.c | -rw-r--r-- | 32.7 KB |
| bitrev.c | -rw-r--r-- | 2.1 KB |
| bug.c | -rw-r--r-- | 4.6 KB |
| bust_spinlocks.c | -rw-r--r-- | 636 bytes |
| check_signature.c | -rw-r--r-- | 599 bytes |
| checksum.c | -rw-r--r-- | 4.9 KB |
| cmdline.c | -rw-r--r-- | 3.6 KB |
| cpumask.c | -rw-r--r-- | 4.5 KB |
| crc-ccitt.c | -rw-r--r-- | 3.0 KB |
| crc-itu-t.c | -rw-r--r-- | 2.8 KB |
| crc-t10dif.c | -rw-r--r-- | 2.9 KB |
| crc16.c | -rw-r--r-- | 2.8 KB |
| crc32.c | -rw-r--r-- | 14.3 KB |
| crc32defs.h | -rw-r--r-- | 1.0 KB |
| crc7.c | -rw-r--r-- | 2.3 KB |
| ctype.c | -rw-r--r-- | 1.3 KB |
| debug_locks.c | -rw-r--r-- | 1.1 KB |
| debugobjects.c | -rw-r--r-- | 24.0 KB |
| dec_and_lock.c | -rw-r--r-- | 782 bytes |
| decompress.c | -rw-r--r-- | 1.2 KB |
| decompress_bunzip2.c | -rw-r--r-- | 23.4 KB |
| decompress_inflate.c | -rw-r--r-- | 3.6 KB |
| decompress_unlzma.c | -rw-r--r-- | 15.5 KB |
| decompress_unlzo.c | -rw-r--r-- | 4.8 KB |
| devres.c | -rw-r--r-- | 7.7 KB |
| div64.c | -rw-r--r-- | 2.3 KB |
| dma-debug.c | -rw-r--r-- | 31.5 KB |
| dump_stack.c | -rw-r--r-- | 290 bytes |
| dynamic_debug.c | -rw-r--r-- | 18.0 KB |
| extable.c | -rw-r--r-- | 2.4 KB |
| fault-inject.c | -rw-r--r-- | 7.9 KB |
| find_last_bit.c | -rw-r--r-- | 1.1 KB |
| find_next_bit.c | -rw-r--r-- | 6.4 KB |
| flex_array.c | -rw-r--r-- | 9.2 KB |
| gcd.c | -rw-r--r-- | 291 bytes |
| gen_crc32table.c | -rw-r--r-- | 1.8 KB |
| genalloc.c | -rw-r--r-- | 5.1 KB |
| halfmd4.c | -rw-r--r-- | 2.0 KB |
| hexdump.c | -rw-r--r-- | 6.1 KB |
| hweight.c | -rw-r--r-- | 1.6 KB |
| idr.c | -rw-r--r-- | 21.3 KB |
| inflate.c | -rw-r--r-- | 38.6 KB |
| int_sqrt.c | -rw-r--r-- | 533 bytes |
| iomap.c | -rw-r--r-- | 7.4 KB |
| iomap_copy.c | -rw-r--r-- | 2.1 KB |
| iommu-helper.c | -rw-r--r-- | 1.2 KB |
| ioremap.c | -rw-r--r-- | 2.1 KB |
| irq_regs.c | -rw-r--r-- | 578 bytes |
| is_single_threaded.c | -rw-r--r-- | 1.3 KB |
| kasprintf.c | -rw-r--r-- | 680 bytes |
| kernel_lock.c | -rw-r--r-- | 3.2 KB |
| klist.c | -rw-r--r-- | 9.3 KB |
| kobject.c | -rw-r--r-- | 20.8 KB |
| kobject_uevent.c | -rw-r--r-- | 8.4 KB |
| kref.c | -rw-r--r-- | 1.9 KB |
| libcrc32c.c | -rw-r--r-- | 2.1 KB |
| list_debug.c | -rw-r--r-- | 1.5 KB |
| list_sort.c | -rw-r--r-- | 2.0 KB |
| lmb.c | -rw-r--r-- | 11.5 KB |
| locking-selftest-hardirq.h | -rw-r--r-- | 207 bytes |
| locking-selftest-mutex.h | -rw-r--r-- | 120 bytes |
| locking-selftest-rlock-hardirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-rlock-softirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-rlock.h | -rw-r--r-- | 158 bytes |
| locking-selftest-rsem.h | -rw-r--r-- | 163 bytes |
| locking-selftest-softirq.h | -rw-r--r-- | 207 bytes |
| locking-selftest-spin-hardirq.h | -rw-r--r-- | 73 bytes |
| locking-selftest-spin-softirq.h | -rw-r--r-- | 73 bytes |
| locking-selftest-spin.h | -rw-r--r-- | 118 bytes |
| locking-selftest-wlock-hardirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-wlock-softirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-wlock.h | -rw-r--r-- | 158 bytes |
| locking-selftest-wsem.h | -rw-r--r-- | 163 bytes |
| locking-selftest.c | -rw-r--r-- | 28.6 KB |
| lru_cache.c | -rw-r--r-- | 14.6 KB |
| nlattr.c | -rw-r--r-- | 12.2 KB |
| parser.c | -rw-r--r-- | 6.1 KB |
| percpu_counter.c | -rw-r--r-- | 3.2 KB |
| plist.c | -rw-r--r-- | 2.9 KB |
| prio_heap.c | -rw-r--r-- | 1.4 KB |
| prio_tree.c | -rw-r--r-- | 12.2 KB |
| proportions.c | -rw-r--r-- | 9.3 KB |
| radix-tree.c | -rw-r--r-- | 31.9 KB |
| random32.c | -rw-r--r-- | 3.8 KB |
| ratelimit.c | -rw-r--r-- | 1.4 KB |
| rational.c | -rw-r--r-- | 1.5 KB |
| rbtree.c | -rw-r--r-- | 8.5 KB |
| reciprocal_div.c | -rw-r--r-- | 159 bytes |
| rwsem-spinlock.c | -rw-r--r-- | 6.8 KB |
| rwsem.c | -rw-r--r-- | 6.4 KB |
| scatterlist.c | -rw-r--r-- | 12.0 KB |
| sha1.c | -rw-r--r-- | 2.4 KB |
| show_mem.c | -rw-r--r-- | 1.4 KB |
| smp_processor_id.c | -rw-r--r-- | 1.1 KB |
| sort.c | -rw-r--r-- | 2.5 KB |
| spinlock_debug.c | -rw-r--r-- | 6.9 KB |
| string.c | -rw-r--r-- | 14.4 KB |
| string_helpers.c | -rw-r--r-- | 1.7 KB |
| swiotlb.c | -rw-r--r-- | 25.4 KB |
| syscall.c | -rw-r--r-- | 2.4 KB |
| textsearch.c | -rw-r--r-- | 9.5 KB |
| ts_bm.c | -rw-r--r-- | 5.3 KB |
| ts_fsm.c | -rw-r--r-- | 10.6 KB |
| ts_kmp.c | -rw-r--r-- | 4.3 KB |
| vsprintf.c | -rw-r--r-- | 48.3 KB |
Computing file changes ...
