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linux/arch/ia64/kernel
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David Mosberger-Tang 30325d1771 [IA64] speed up syscall path a bit more 
Recently I noticed that clearing ar.ssd/ar.csd right before srlz.d is
causing significant stalling in the syscall path.  The patch below
fixes that by moving the register-writes after srlz.d.  On a Madison,
this drops break-based getpid() from 241 to 226 cycles (-15 cycles).

Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-04-25 13:03:16 -07:00
..
acpi-ext.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
acpi.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
asm-offsets.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
brl_emu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyclone.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
domain.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi_stub.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
entry.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
entry.S [IA64] speed up syscall path a bit more 2005-04-25 13:03:16 -07:00
fsys.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate-data.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.lds.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
head.S [IA64] Fix build errors for !HOTPLUG case. 2005-04-22 14:46:24 -07:00
ia64_ksyms.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iosapic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq_ia64.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq_lsapic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ivt.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machvec.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca_asm.S [IA64] cpu hotplug: return offlined cpus to SAL 2005-04-22 14:44:40 -07:00
mca_drv_asm.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca_drv.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca_drv.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
minstate.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pal.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
palinfo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
patch.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_default_smpl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_itanium.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_mckinley.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
process.c [IA64] cpu hotplug: return offlined cpus to SAL 2005-04-22 14:44:40 -07:00
ptrace.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sal.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
salinfo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smpboot.c [IA64] add missing cpu_relax() in ITC syncing code 2005-04-25 11:44:02 -07:00
sys_ia64.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
time.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
topology.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
traps.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_decoder.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_i.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind.c [IA64] Tighten up unw_unwind_to_user check 2005-04-25 11:45:26 -07:00
vmlinux.lds.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00