linux/arch/arm/include/asm
Vincent Guittot c9018aab8e ARM: 7011/1: Add ARM cpu topology definition
The affinity between ARM processors is defined in the MPIDR register.
We can identify which processors are in the same cluster,
and which ones have performance interdependency. We can define the
cpu topology of ARM platform, that is then used by sched_mc and sched_smt.

The default state of sched_mc and sched_smt config is disable.
When enabled, the behavior of the scheduler can be modified with
sched_mc_power_savings and sched_smt_power_savings sysfs interfaces.

Changes since v4 :
*  Remove unnecessary parentheses and blank lines

Changes since v3 :
* Update the format of printk message
* Remove blank line

Changes since v2 :
* Update the commit message and some comments

Changes since v1 :
* Update the commit message
* Add read_cpuid_mpidr in arch/arm/include/asm/cputype.h
* Modify header of arch/arm/kernel/topology.c
* Modify tests and manipulation of MPIDR's bitfields
* Modify the place and dependancy of the config
* Modify Noop functions

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17 09:02:43 +01:00
..
hardware ARM: 7080/1: l2x0: make sure I&D are not locked down on init 2011-09-07 00:48:03 +01:00
mach Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
a.out-core.h ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump 2011-03-10 15:16:29 +00:00
a.out.h headers_check fix: arm, a.out.h 2009-02-01 11:01:22 +05:30
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
assembler.h ARM: assembler.h: Add string declaration macro 2011-07-07 15:31:05 +01:00
atomic.h atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
auxvec.h
bitops.h asm-generic: add another generic ext2 atomic bitops 2011-07-26 16:49:46 -07:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h
bugs.h
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h ARM: implement support for read-mostly sections 2010-12-05 08:39:36 +00:00
cacheflush.h Merge branch 'v6v7' into devel 2011-03-16 23:35:26 +00:00
cachetype.h ARM: 6385/1: setup: detect aliasing I-cache when D-cache is non-aliasing 2010-10-04 20:57:09 +01:00
checksum.h
clkdev.h ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
cpu.h ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.h 2010-01-10 13:03:52 +00:00
cputime.h
cputype.h ARM: 7011/1: Add ARM cpu topology definition 2011-10-17 09:02:43 +01:00
current.h
delay.h
device.h Driver Core: Add platform device arch data V3 2009-07-22 00:28:38 +02:00
div64.h
dma-mapping.h ARM: dma: replace ISA_DMA_THRESHOLD with a variable 2011-07-12 11:08:12 +01:00
dma.h ARM: ARM_DMA_ZONE_SIZE is no more 2011-07-18 15:30:57 -04:00
domain.h ARM: 6384/1: Remove the domain switching on ARMv6k/v7 CPUs 2010-11-04 15:44:31 +00:00
ecard.h
elf.h ARM: 6883/1: ptrace: Migrate to regsets framework 2011-05-14 21:36:55 +01:00
emergency-restart.h
entry-macro-multi.S ARM: entry: re-allocate registers in irq entry assembly macros 2011-07-02 10:56:10 +01:00
entry-macro-vic2.S ARM: Add common entry code for system with two VICs 2010-01-15 17:10:14 +09:00
errno.h
fb.h
fcntl.h
fiq.h ARM: 6940/1: fiq: Briefly document driver responsibilities for suspend/resume 2011-05-26 10:31:06 +01:00
fixmap.h [ARM] fixmap support 2009-03-15 21:01:20 -04:00
flat.h flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
floppy.h
fncpy.h ARM: 6640/1: Thumb-2: Symbol manipulation macros for function body copying 2011-01-27 11:48:58 +00:00
fpstate.h Fix common misspellings 2011-03-31 11:26:23 -03:00
ftrace.h ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace 2010-09-02 15:28:43 +01:00
futex.h ARM: 6889/1: futex: add SMP futex support when !CPU_USE_DOMAINS 2011-05-12 10:11:44 +01:00
glue-cache.h Fix common misspellings 2011-03-31 11:26:23 -03:00
glue-df.h ARM: move cache/processor/fault glue to separate include files 2011-02-12 11:52:21 +00:00
glue-pf.h ARM: move cache/processor/fault glue to separate include files 2011-02-12 11:52:21 +00:00
glue-proc.h Merge branch 'v6v7' into devel 2011-03-16 23:35:26 +00:00
glue.h Fix common misspellings 2011-03-31 11:26:23 -03:00
gpio.h
hardirq.h ARM: SMP: collect IPI and local timer IRQs for /proc/stat 2010-12-20 15:08:01 +00:00
highmem.h ARM: 6639/1: allow highmem on SMP platforms without h/w TLB ops broadcast 2011-02-23 17:24:17 +00:00
hw_breakpoint.h ARM: hw_breakpoint: unify single-stepping code for watchpoints and breakpoints 2010-12-06 11:55:57 +00:00
hw_irq.h arm: dove: Use proper irq accessor functions 2011-03-29 14:47:57 +02:00
hwcap.h ARM: hwcaps: add new HWCAP defines for ARMv7-A 2011-07-07 19:20:51 +01:00
ide.h
io.h ARM: io: ensure inb/outb() et.al. are properly ordered on ARMv6+ 2011-01-31 10:53:42 +00:00
ioctl.h
ioctls.h ioctl: Use asm-generic/ioctls.h on arm (enables termiox) 2010-10-22 10:19:59 -07:00
ipcbuf.h
irq_regs.h
irq.h ARM: introduce handle_IRQ() not to dump exception stack 2011-07-12 19:42:40 +08:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
Kbuild archs: replace unifdef-y with header-y 2010-08-14 22:26:51 +02:00
kdebug.h
kexec.h [ARM] add machine-specific hook to machine_kexec 2011-03-03 16:26:55 -05:00
kgdb.h kgdb,arm: fix register dump 2010-10-29 13:14:40 -05:00
kmap_types.h kdb: core for kgdb back end (2 of 2) 2010-05-20 21:04:21 -05:00
kprobes.h ARM: kprobes: Extend arch_specific_insn to add pointer to emulated instruction 2011-07-13 17:32:42 +00:00
leds.h
limits.h
linkage.h
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h
localtimer.h ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime 2011-02-23 17:54:27 +00:00
locks.h
mach-types.h arm: move mach-types to include/generated 2009-12-12 13:08:14 +01:00
mc146818rtc.h
memblock.h ARM: fix memblock breakage 2010-10-27 21:41:39 +01:00
memory.h ARM: dma: replace ISA_DMA_THRESHOLD with a variable 2011-07-12 11:08:12 +01:00
mman.h arm: add arch_mmap_check(), get rid of sys_arm_mremap() 2009-12-11 06:34:09 -05:00
mmu_context.h ARM: add a vma entry for the user accessible vector page 2010-10-01 22:35:19 -04:00
mmu.h ARM: 6490/1: MM: bugfix: initialize spinlock for init_mm.context 2010-11-23 22:46:12 +00:00
module.h ARM: 6766/1: Thumb-2: Reflect ARM/Thumb-2 configuration in module vermagic 2011-02-26 13:36:06 +00:00
msgbuf.h
mtd-xip.h
mutex.h
nwflash.h
outercache.h Merge branches 'fixes', 'pgt-next' and 'versatile' into devel 2011-03-20 09:32:12 +00:00
page-nommu.h nommu: Remove the memory_start/end variables from ARM page-nommu.h 2009-07-24 12:35:01 +01:00
page.h ARM: 6913/1: sparsemem: allow pfn_valid to be overridden when using SPARSEMEM 2011-05-26 10:23:24 +01:00
param.h
parport.h
pci.h ARM: convert PCI defines to variables 2011-07-12 11:19:29 -05:00
percpu.h
perf_event.h ARM: perf: add support for the Cortex-A15 PMU 2011-07-07 19:20:53 +01:00
pgalloc.h ARM: 6757/1: fix tlb.h induced linux/swap.h build failure 2011-02-23 16:19:21 +00:00
pgtable-hwdef.h
pgtable-nommu.h ARM: 5988/1: pgprot_dmacoherent() for non-mmu builds 2010-03-13 10:48:22 +00:00
pgtable.h ARM: pgtable: add pud-level code 2011-02-21 19:24:14 +00:00
pmu.h ARM: perf: make name of arm_pmu_type consistent 2011-08-12 15:40:21 +01:00
poll.h
posix_types.h
proc-fns.h ARM: 6988/1: multi-cpu: remove arguments from CPU proc macros 2011-07-06 20:49:45 +01:00
processor.h Merge branch 'misc' into devel 2011-03-16 23:35:25 +00:00
procinfo.h
prom.h irq: add irq_domain translation infrastructure 2011-07-28 01:32:04 -06:00
ptrace.h ARM: ptrace: Add APSR_MASK definition to ptrace.h 2011-07-13 17:32:43 +00:00
resource.h
scatterlist.h ARM: Allow SoCs to enable scatterlist chaining 2011-06-02 11:16:22 +01:00
sched_clock.h ARM: sched_clock: allow init_sched_clock() to be called early 2011-01-11 16:23:04 +00:00
seccomp.h ARM: SECCOMP support 2010-10-01 22:32:18 -04:00
sections.h
segment.h
sembuf.h
serial.h
setup.h Merge branches 'btc', 'dma', 'entry', 'fixes', 'linker-layout', 'misc', 'mmci', 'suspend' and 'vfp' into for-next 2011-07-22 23:08:48 +01:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
sizes.h ARM: 6871/1: Use asm-generic/sizes.h 2011-04-16 12:52:18 +01:00
smp_plat.h Merge branches 'at91', 'dcache', 'ftrace', 'hwbpt', 'misc', 'mmci', 's3c', 'st-ux' and 'unwind' into devel 2010-10-18 22:34:25 +01:00
smp_scu.h ARM: pm: add function to set WFI low-power mode for SMP CPUs 2011-02-11 12:29:18 +00:00
smp_twd.h ARM: localtimer: clean up local timer on hot unplug 2010-12-20 15:09:16 +00:00
smp.h ARM: 6942/1: mm: make TTBR1 always point to swapper_pg_dir on ARMv6/7 2011-05-26 12:14:32 +01:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h
sparsemem.h
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h ARM: 6939/1: fix missing 'cpu_relax()' declaration 2011-05-23 17:19:26 +01:00
stackprotector.h ARM: initial stack protector (-fstack-protector) support 2010-06-14 21:31:00 -04:00
stacktrace.h [ARM] 5382/1: unwind: Reorganise the stacktrace support 2009-02-12 13:21:17 +00:00
stat.h
statfs.h
string.h
suspend.h ARM: pm: allow suspend finisher to return error codes 2011-07-02 09:54:01 +01:00
swab.h ARM: 5772/1: Use REV and REV16 for byte swapping on ARMv6+ 2009-10-25 15:59:53 +00:00
system.h ARM: pm: hide 1st and 2nd arguments to cpu_suspend from platform code 2011-06-24 09:54:39 +01:00
tcm.h ARM: 6985/1: export functions to determine the presence of I/DTCM 2011-07-06 20:49:45 +01:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h
therm.h
thread_info.h ARM: SECCOMP support 2010-10-01 22:32:18 -04:00
thread_notify.h ARM: 6867/1: Introduce THREAD_NOTIFY_COPY for copy_thread() hooks 2011-04-10 21:13:36 +01:00
timex.h
tlb.h arm: mmu_gather rework 2011-05-25 08:39:14 -07:00
tlbflush.h ARM: btc: avoid invalidating the branch target cache on kernel TLB maintanence 2011-07-19 11:44:06 +01:00
tls.h ARM: v6k: select TLS register code according to V6 variants 2011-02-02 21:23:29 +00:00
topology.h ARM: 7011/1: Add ARM cpu topology definition 2011-10-17 09:02:43 +01:00
traps.h ARM: 7004/1: fix traps.h compile warnings 2011-07-22 17:19:02 +01:00
types.h remove dma64_addr_t 2011-03-23 19:47:18 -07:00
uaccess.h ARM: 6384/1: Remove the domain switching on ARMv6k/v7 CPUs 2010-11-04 15:44:31 +00:00
ucontext.h Fix common misspellings 2011-03-31 11:26:23 -03:00
unaligned.h
unified.h Fix "W" macro in arch/arm/include/asm/unified.h 2009-09-18 23:30:11 +01:00
unistd.h Merge branch 'setns' 2011-05-28 10:51:01 -07:00
unwind.h [ARM] 5383/2: unwind: Add core support for ARM stack unwinding 2009-02-19 11:26:24 +00:00
user.h ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump 2011-03-10 15:16:29 +00:00
vfp.h
vfpmacros.h ARM: 6203/1: Make VFPv3 usable on ARMv6 2010-07-09 14:41:34 +01:00
vga.h ARM: set vga memory base at run-time 2011-07-12 11:19:29 -05:00
xor.h