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99d8670525
linux/arch/powerpc/kernel
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Vaidyanathan Srinivasan 99d8670525 powerpc: Cleanup APIs for cpu/thread/core mappings 
These APIs take logical cpu number as input
Change cpu_first_thread_in_core() to cpu_first_thread_sibling()
Change cpu_last_thread_in_core() to cpu_last_thread_sibling()

These APIs convert core number (index) to logical cpu/thread numbers
Add cpu_first_thread_of_core(int core)
Changed cpu_thread_to_core() to cpu_core_index_of_thread(int cpu)

The goal is to make 'threads_per_core' accessible to the
pseries_energy module.  Instead of making an API to read
threads_per_core, this is a higher level wrapper function to
convert from logical cpu number to core number.

The current APIs cpu_first_thread_in_core() and
cpu_last_thread_in_core() returns logical CPU number while
cpu_thread_to_core() returns core number or index which is
not a logical CPU number.  The new APIs are now clearly named to
distinguish 'core number' versus first and last 'logical cpu
number' in that core.

The new APIs cpu_{first,last}_thread_sibling() work on
logical cpu numbers.  While cpu_first_thread_of_core() and
cpu_core_index_of_thread() work on core index.

Example usage:  (4 threads per core system)

cpu_first_thread_sibling(5) = 4
cpu_last_thread_sibling(5) = 7
cpu_core_index_of_thread(5) = 1
cpu_first_thread_of_core(1) = 4

cpu_core_index_of_thread() is used in cpu_to_drc_index() in the
module and cpu_first_thread_of_core() is used in
drc_index_to_cpu() in the module.

Make API changes to few callers.  Export symbols for use in modules.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-11-29 15:48:19 +11:00
..
vdso32 powerpc/Makefiles: Change to new flag variables 2010-10-13 16:19:22 +11:00
vdso64 powerpc/Makefiles: Change to new flag variables 2010-10-13 16:19:22 +11:00
.gitignore
align.c powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
asm-offsets.c Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-10-24 12:47:25 -07:00
audit.c
btext.c lmb: rename to memblock 2010-07-14 17:14:00 +10:00
cacheinfo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cacheinfo.h
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
cpu_setup_44x.S powerpc/44x: Add support for the AMCC APM821xx SoC 2010-10-13 08:47:09 -04:00
cpu_setup_fsl_booke.S powerpc/fsl-booke: Add support for FSL 64-bit e5500 core 2010-10-14 00:55:03 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S
cputable.c Merge remote branch 'jwb/next' into next 2010-10-15 10:45:03 +11:00
crash_dump.c powerpc/kdump: Override crash_free_reserved_phys_range to avoid freeing RTAS 2010-11-29 15:48:17 +11:00
crash.c powerpc/kexec: make masking/disabling interrupts generic 2010-10-14 00:52:46 -05:00
dbell.c powerpc/book3e: Resend doorbell exceptions to ourself 2010-07-09 16:11:19 +10:00
dma-iommu.c powerpc/dma: Fix dma_iommu_dma_supported compare 2010-10-13 16:19:21 +11:00
dma-swiotlb.c of: Merge of_platform_bus_type with platform_bus_type 2010-07-24 09:57:51 -06:00
dma.c powerpc/dma: Fix check for direct DMA support 2010-10-13 16:19:21 +11:00
e500-pmu.c powerpc/perf: e500 support 2010-03-05 03:04:08 -06:00
entry_32.S powerpc/47x: Base ppc476 support 2010-05-05 09:11:10 -04:00
entry_64.S powerpc: Account time using timebase rather than PURR 2010-09-02 14:07:31 +10:00
exceptions-64e.S powerpc/book3e: Fix single step when using HW page tables 2010-07-14 14:13:51 +10:00
exceptions-64s.S Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-10-24 12:47:25 -07:00
firmware.c powerpc: Make powerpc_firmware_features __read_mostly 2010-02-09 13:56:07 +11:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
fsl_booke_entry_mapping.S powerpc/fsl-booke: Fix address issue when using relocatable kernels 2010-07-11 11:04:08 -05:00
ftrace.c Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
head_8xx.S powerpc/8xx: Use SPRG2 and DAR registers to stash r11 and cr. 2010-04-07 18:00:34 +10:00
head_32.S KVM: PPC: Add KVM intercept handlers 2010-05-17 12:18:52 +03:00
head_40x.S memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
head_44x.S powerpc/47x: Make sure mcsr is cleared before enabling machine check interrupts 2010-08-23 07:36:58 -04:00
head_64.S KVM: PPC: Move KVM trampolines before __end_interrupts 2010-10-24 10:50:59 +02:00
head_booke.h powerpc/booke: Add Stack Marking support to Booke Exception Prolog 2010-05-05 08:01:52 -04:00
head_fsl_booke.S powerpc/fsl_booke: Add support to boot from core other than 0 2010-10-14 00:52:58 -05:00
hw_breakpoint.c powerpc, hw_breakpoint: Tell generic code we have no instruction breakpoints 2010-06-30 13:54:58 +10:00
ibmebus.c of/device: Rework to use common platform_device_alloc() for allocating devices 2010-10-21 11:10:10 -06:00
idle_6xx.S
idle_book3e.S powerpc/book3e: Add generic 64-bit idle powersave support 2010-07-14 14:13:18 +10:00
idle_e500.S
idle_power4.S
idle.c powerpc: Re-enable preemption before cpu_die() 2010-08-24 15:26:29 +10:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io.c powerpc: tiny memcpy_(to|from)io optimisation 2009-11-04 16:43:12 -07:00
iomap.c
iommu.c powerpc: Remove unused 'protect4gb' boot parameter 2010-05-21 17:31:13 +10:00
irq.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
isa-bridge.c
kgdb.c kgdb,ppc: Fix regression in evr register handling 2010-11-17 13:54:58 -06:00
kprobes.c powerpc/kprobes: Remove resume_execution() in kprobes 2010-06-02 17:50:37 +10:00
kvm_emul.S KVM: PPC: Make PV mtmsrd L=1 work with r30 and r31 2010-10-24 10:52:14 +02:00
kvm.c PPC: KVM: Book E doesn't have __end_interrupts. 2010-11-05 14:42:27 -02:00
l2cr_6xx.S
legacy_serial.c powerpc, of_serial: Endianness issues setting up the serial ports 2010-10-07 17:21:15 -06:00
lparcfg.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
machine_kexec_32.c powerpc/kexec: make masking/disabling interrupts generic 2010-10-14 00:52:46 -05:00
machine_kexec_64.c powerpc/kexec: Fix orphaned offline CPUs across kexec 2010-07-31 15:05:22 +10:00
machine_kexec.c powerpc/kexec: make masking/disabling interrupts generic 2010-10-14 00:52:46 -05:00
Makefile Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-10-24 12:47:25 -07:00
misc_32.S powerpc/kexec: Adds correct calling convention for kexec purgatory 2010-08-31 11:35:12 +10:00
misc_64.S powerpc: Unconditionally enabled irq stacks 2010-06-15 15:02:37 +10:00
misc.S perf: Drop the skip argument from perf_arch_fetch_regs_caller 2010-06-08 23:31:27 +02:00
module_32.c
module_64.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
module.c powerpc: remove unused variable 2010-10-05 17:27:54 -07:00
mpc7450-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
msi.c powerpc/PCI: include pci.h in powerpc MSI implementation 2009-03-25 08:54:29 -07:00
nvram_64.c arch/powerpc: Fix continuation line formats 2010-02-09 13:55:05 +11:00
of_platform.c of: remove of_default_bus_ids 2010-07-24 09:58:22 -06:00
paca.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
pci_32.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pci_64.c of: add 'of_' prefix to machine_is_compatible() 2010-02-09 08:33:00 -07:00
pci_dn.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pci_of_scan.c powerpc/pci: Fix checking for child bridges in PCI code. 2010-08-24 15:28:27 +10:00
pci-common.c powerpc/pci: Cleanup device dma setup code 2010-10-13 16:19:22 +11:00
perf_callchain.c perf: Factorize callchain context handling 2010-08-19 01:32:11 +02:00
perf_event_fsl_emb.c perf: Rework the PMU methods 2010-09-09 20:46:30 +02:00
perf_event.c perf, powerpc: Fix power_pmu_event_init to not use event->ctx 2010-10-19 09:18:34 +02:00
pmc.c powerpc: Convert pmc_owner_lock to raw_spinlock 2010-02-19 14:52:33 +11:00
power4-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
power5-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
power5+-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
power6-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
power7-pmu.c powerpc: perf_event: Enable SDAR in continous sample mode 2009-10-28 16:13:02 +11:00
ppc32.h
ppc970-pmu.c powerpc/perf: Fix sampling enable for PPC970 2010-09-23 17:03:56 +10:00
ppc_ksyms.c powerpc: Add support for popcnt instructions 2010-11-29 15:48:17 +11:00
ppc_save_regs.S
proc_powerpc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
process.c powerpc: Account time using timebase rather than PURR 2010-09-02 14:07:31 +10:00
prom_init_check.sh powerpc: Fix compile errors in prom_init_check for gcc 4.5 2010-07-08 18:11:39 +10:00
prom_init.c powerpc: Print decimal values in prom_init.c 2010-07-31 15:05:20 +10:00
prom_parse.c of/address: Merge all of the bus translation code 2010-07-05 16:14:26 -06:00
prom.c Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
ptrace32.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
ptrace.c ptrace: cleanup arch_ptrace() on powerpc 2010-10-27 18:03:11 -07:00
reloc_64.S
rtas_flash.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
rtas_pci.c powerpc/pci: Clean up direct access to sysdata by RTAS 2009-05-21 15:44:23 +10:00
rtas-proc.c powerpc: Move /proc/ppc64 to /proc/powerpc update 2010-01-15 13:26:17 +11:00
rtas-rtc.c
rtas.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
rtasd.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
setup_32.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
setup_64.c powerpc: Update a BKL related comment 2010-11-18 14:54:24 +11:00
setup-common.c powerpc: fix i8042 module build error 2010-08-06 20:49:20 -06:00
setup.h
signal_32.c powerpc: fix double syscall restarts 2010-09-22 09:33:50 -07:00
signal_64.c powerpc: fix double syscall restarts 2010-09-22 09:33:50 -07:00
signal.c powerpc: fix double syscall restarts 2010-09-22 09:33:50 -07:00
signal.h powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
smp-tbsync.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
smp.c powerpc: Cleanup APIs for cpu/thread/core mappings 2010-11-29 15:48:19 +11:00
softemu8xx.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
stacktrace.c
suspend.c update email address 2010-07-19 10:56:54 +02:00
swsusp_32.S powerpc/swsusp_32: Fix TLB invalidation 2010-01-15 13:20:07 +11:00
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S powerpc/fsl-booke: Add hibernation support for FSL BookE processors 2010-05-21 07:41:53 -05:00
swsusp.c
sys_ppc32.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
syscalls.c Add generic sys_olduname() 2010-03-12 15:52:32 -08:00
sysfs.c powerpc: Use smt_snooze_delay=-1 to always busy loop 2010-05-21 17:31:12 +10:00
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
time.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
traps.c powerpc/fsl-booke: Add support for FSL 64-bit e5500 core 2010-10-14 00:55:03 -05:00
udbg_16550.c trivial: fix typo "for for" in multiple files 2009-09-21 15:14:54 +02:00
udbg.c powerpc: gamecube/wii: early debugging using usbgecko 2009-12-12 22:24:31 -07:00
vdso.c powerpc: Use is_32bit_task() helper to test 32-bit binary 2010-09-02 14:07:32 +10:00
vecemu.c
vector.S powerpc: Fix usage of 64-bit instruction in 32-bit altivec code 2009-12-09 18:10:12 +11:00
vio.c replace nested max/min macros with {max,min}3 macro 2010-10-26 16:52:12 -07:00
vmlinux.lds.S Rename .data.read_mostly to .data..read_mostly. 2010-03-03 11:26:00 +01:00