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e147ec8f18
sst-linux/arch/powerpc/kernel
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will schmidt e147ec8f18 [POWERPC] Simplify smp_space_timers 
Greatly simplify the function smp_space_timers.

The stolen time calculation (per comment within the code) doesn't need the
half-jiffy stagger any more.  There isn't an issue with bouncing off global
locks, so we really shouldn't need any sort of staggering at all.

However, the last_jiffy value still needs to be set.   This removes the
extra stagger logic, and just sets the values.

This change should benefit applications that rely on barrier
synchronization, and will help cut down OS jitter.

Boot tested across the board (G5,power3,power4,power5,970mp blade).

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-12 11:32:47 +10:00
..
vdso32 [POWERPC] Support feature fixups in vdso's 2006-10-25 11:54:07 +10:00
vdso64 [POWERPC] Cell timebase bug workaround 2006-10-25 11:54:18 +10:00
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 [POWERPC] powerpc: Enable DEEPNAP power savings mode on 970MP 2006-10-16 16:32:25 +10:00
cputable.c [POWERPC] pasemi: PA6T oprofile support 2007-04-24 21:31:51 +10:00
crash_dump.c
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
dma_64.c [POWERPC] Make direct DMA use node local allocations 2006-12-04 20:38:59 +11:00
entry_32.S [POWERPC] Remove last_syscall 2007-03-22 22:52:58 +11:00
entry_64.S [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace 2007-02-07 14:03:23 +11:00
firmware.c
fpu.S
head_4xx.S
head_8xx.S
head_32.S [POWERPC] Remove the broken Gemini support 2007-01-24 21:13:58 +11:00
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 [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
iomap.c [POWERPC] Remove fastcall function attribute 2007-01-26 01:52:27 -06:00
iommu.c Revert "[POWERPC] DMA 4GB boundary protection" 2007-04-26 19:48:15 +10:00
irq.c powerpc: fixup hard_irq_disable semantics 2007-05-11 08:29:34 -07:00
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] PowerPC MSI infrastructure 2007-05-08 13:40:31 +10:00
misc_32.S [POWERPC] Remove _get_SP 2007-03-22 22:52:58 +11:00
misc_64.S [POWERPC] pasemi: UART udbg support 2007-02-07 14:03:22 +11:00
misc.S
module_32.c [POWERPC] Add support for R_PPC_ADDR16_HI relocations 2007-01-24 21:13:58 +11:00
module_64.c [POWERPC] Generic BUG for powerpc 2006-12-11 16:35:07 +11:00
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] Early serial debug support for PPC44x 2007-05-08 14:47:33 +10:00
paca.c
pci_32.c [POWERPC] Fix STRICT_MM_TYPECHECKS 2007-05-02 20:04:30 +10:00
pci_64.c [POWERPC] Fix incorrect calculation of I/O window addresses 2007-05-10 21:28:13 +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] PA6T PMC support 2007-02-07 14:03:19 +11:00
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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
prom_init.c [POWERPC] Tell Phyp we support MSI 2007-05-08 13:40:31 +10:00
prom_parse.c [POWERPC] Uninline of_iomap function 2007-05-02 20:04:29 +10:00
prom.c [POWERPC] Split initrd logic out of early_init_dt_scan_chosen() to fix warning 2007-05-10 21:28:13 +10:00
ptrace32.c
ptrace-common.h
ptrace.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
rtas_flash.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
rtas_pci.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
rtas-proc.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +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] Generic check_legacy_ioport 2007-04-27 21:14:30 +10:00
setup.h
signal_32.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
signal_64.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
smp-tbsync.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
smp.c [POWERPC] Add smp_call_function_map and smp_call_function_single 2007-05-07 20:31:13 +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 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
vdso.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
vecemu.c
vector.S
vio.c Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
vmlinux.lds.S [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00