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Jake Moilanen d8c391a559 [POWERPC] Donate idle CPU cycles on dedicated partitions 
A Power6 can give up CPU cycles on a dedicated CPU (as opposed to a
shared CPU) to other shared processors if the administrator asks for it
(via the HMC).

This enables that to work properly on P6.

This just involves setting a bit in the CAS structure as well as the
VPA.  To donate cycles, a CPU has to have all SMT threads idle and
have the donate bit set in the VPA.  Then call H_CEDE.

The reason why shared processors just aren't used is because dedicated
CPUs are guaranteed an actual processor, yet the system is still able to
increase the capacity of the shared CPU pool.

Also rename the VPA's cpuctls_task_attrs field to a more accurate name.

Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14 22:29:58 +10:00
..
vdso32
vdso64
align.c [POWERPC] Alignment exception uses __get/put_user_inatomic 2007-04-13 04:09:38 +10:00
asm-offsets.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-09 12:56:01 -07:00
audit.c [PATCH] audit signal recipients 2007-05-11 05:38:25 -04:00
binfmt_elf32.c
btext.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
compat_audit.c [PATCH] add SIGNAL syscall class (v3) 2007-05-11 05:38:25 -04:00
cpu_setup_6xx.S
cpu_setup_pa6t.S [POWERPC] pasemi: Enable one more hid bit 2007-04-24 21:31:49 +10:00
cpu_setup_ppc970.S
cputable.c [POWERPC] Add missing pmc_type fields in cpu_table 2007-05-22 20:20:56 +10:00
crash_dump.c
crash.c
dma_64.c
entry_32.S [POWERPC] Fix COMMON symbol warnings 2007-05-17 21:10:15 +10:00
entry_64.S
firmware.c
fpu.S
head_4xx.S
head_8xx.S
head_32.S
head_44x.S [POWERPC] Early serial debug support for PPC44x 2007-05-08 14:47:33 +10:00
head_64.S [POWERPC] Save trap number in bad_stack 2007-04-24 22:06:59 +10:00
head_booke.h
head_fsl_booke.S [POWERPC] 85xx: Drop use of SYNC macro in head_fsl_booke.S 2007-02-13 16:13:27 -06:00
ibmebus.c [POWERPC] ibmebus: change probe/remove interface from using loc-code to DT path 2007-04-13 06:12:42 +10:00
idle_6xx.S
idle_power4.S [POWERPC] powermac: Support G5 CPU hotplug 2007-05-07 20:31:13 +10:00
idle.c [POWERPC] powermac: Suspend to disk on G5 2007-05-07 20:31:14 +10:00
init_task.c
io.c
iomap.c
iommu.c Revert "[POWERPC] DMA 4GB boundary protection" 2007-04-26 19:48:15 +10:00
irq.c [POWERPC] Compare irq numbers with NO_IRQ not IRQ_NONE 2007-06-02 21:01:56 +10:00
isa-bridge.c [POWERPC] Rewrite IO allocation & mapping on powerpc64 2007-06-14 22:29:56 +10:00
kprobes.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
l2cr_6xx.S
legacy_serial.c Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
lparcfg.c [POWERPC] Replace if-then-else with a switch statement 2007-04-27 21:13:21 +10:00
lparmap.c [POWERPC] iSeries: suppress build warning in lparmap.c 2007-05-09 16:34:59 +10:00
machine_kexec_32.c
machine_kexec_64.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
machine_kexec.c
Makefile [POWERPC] Make syscall restart code more common 2007-06-14 22:29:57 +10:00
misc_32.S [POWERPC] Remove _get_SP 2007-03-22 22:52:58 +11:00
misc_64.S
misc.S
module_32.c
module_64.c
msi.c [POWERPC] PowerPC MSI infrastructure 2007-05-08 13:40:31 +10:00
nvram_64.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
of_device.c [POWERPC] Export of_device_get_modalias 2007-05-07 20:31:15 +10:00
of_platform.c [POWERPC] Rewrite IO allocation & mapping on powerpc64 2007-06-14 22:29:56 +10:00
paca.c
pci_32.c [POWERPC] Fix STRICT_MM_TYPECHECKS 2007-05-02 20:04:30 +10:00
pci_64.c [POWERPC] Rewrite IO allocation & mapping on powerpc64 2007-06-14 22:29:56 +10:00
pci_dn.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
pmc.c [POWERPC] Fix typo: MMCR0_PMA0 != MMCR0_PMAO 2007-05-22 20:20:56 +10:00
ppc32.h
ppc_ksyms.c [POWERPC] Remove duplicate export of __div64_32. 2007-05-02 20:04:32 +10:00
proc_ppc64.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
process.c [POWERPC] Always apply DABR changes on context switches 2007-06-14 22:29:57 +10:00
prom_init.c [POWERPC] Donate idle CPU cycles on dedicated partitions 2007-06-14 22:29:58 +10:00
prom_parse.c [POWERPC] Don't complain if size-cells == 0 in prom_parse() 2007-05-12 11:32:48 +10:00
prom.c [POWERPC] Update documentation for of_find_node_by_type() 2007-06-02 21:01:55 +10:00
ptrace32.c [POWERPC] ptrace shouldn't touch FP exec mode 2007-06-14 22:29:57 +10:00
ptrace.c [POWERPC] powerpc: ptrace can set DABR on both 32 and 64 bits 2007-06-14 22:29:57 +10:00
rtas_flash.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
rtas_pci.c [POWERPC] Rewrite IO allocation & mapping on powerpc64 2007-06-14 22:29:56 +10:00
rtas-proc.c [POWERPC] Fix ppc_rtas_progress_show() 2007-05-17 21:11:15 +10:00
rtas-rtc.c
rtas.c [POWERPC] Remove old interface find_path_device 2007-04-24 22:08:59 +10:00
semaphore.c
setup_32.c [POWERPC] Fix breakage caused by 72486f1f8f 2007-04-13 03:55:16 +10:00
setup_64.c [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
setup-common.c [POWERPC] Check cache coherency of kernel vs firmware 2007-05-12 11:32:50 +10:00
setup.h
signal_32.c [POWERPC] Merge creation of signal frame 2007-06-14 22:29:58 +10:00
signal_64.c [POWERPC] Merge creation of signal frame 2007-06-14 22:29:58 +10:00
signal.c [POWERPC] Less ifdef's in signal.c/signal.h 2007-06-14 22:29:58 +10:00
signal.h [POWERPC] Less ifdef's in signal.c/signal.h 2007-06-14 22:29:58 +10:00
smp-tbsync.c
smp.c [POWERPC] Fix smp_call_function to be preempt-safe 2007-05-22 20:20:56 +10:00
suspend.c [PATCH] x86: Move swsusp __pa() dependent code to arch portion 2007-05-02 19:27:07 +02:00
swsusp_32.S
swsusp_64.c [POWERPC] powermac: Suspend to disk on G5 2007-05-07 20:31:14 +10:00
swsusp_asm64.S [POWERPC] powermac: Suspend to disk on G5 2007-05-07 20:31:14 +10:00
swsusp.c powerpc: fixup hard_irq_disable semantics 2007-05-11 08:29:34 -07:00
sys_ppc32.c [POWERPC] Clean up unused ROUND_UP, NAME_OFFSET macros in arch/powerpc 2007-04-13 04:00:41 +10:00
syscalls.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
sysfs.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
systbl.S
tau_6xx.c
time.c [POWERPC] Simplify smp_space_timers 2007-05-12 11:32:47 +10:00
traps.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
udbg_16550.c [POWERPC] Early serial debug support for PPC44x 2007-05-08 14:47:33 +10:00
udbg.c [POWERPC] Fix console output getting dropped on platforms without udbg_putc 2007-06-14 11:56:17 +10:00
vdso.c [POWERPC] Fix VDSO compile warning 2007-06-14 22:29:55 +10:00
vecemu.c
vector.S
vio.c Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
vmlinux.lds.S [POWERPC] Fix powerpc vmlinux.lds.S 2007-05-22 20:20:56 +10:00