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00b65985fb
linux/include/asm-ia64
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Chen, Kenneth W 00b65985fb [IA64] relax per-cpu TLB requirement to DTC 
Instead of pinning per-cpu TLB into a DTR, use DTC.  This will free up
one TLB entry for application, or even kernel if access pattern to
per-cpu data area has high temporal locality.

Since per-cpu is mapped at the top of region 7 address, we just need to
add special case in alt_dtlb_miss.  The physical address of per-cpu data
is already conveniently stored in IA64_KR(PER_CPU_DATA).  Latency for
alt_dtlb_miss is not affected as we can hide all the latency.  It was
measured that alt_dtlb_miss handler has 23 cycles latency before and
after the patch.

The performance effect is massive for applications that put lots of tlb
pressure on CPU.  Workload environment like database online transaction
processing or application uses tera-byte of memory would benefit the most.
Measurement with industry standard database benchmark shown an upward
of 1.6% gain.  While smaller workloads like cpu, java also showing small
improvement.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-06 15:04:48 -08:00
..
sn [IA64] fix possible XPC deadlock when disconnecting 2006-12-12 11:48:53 -08:00
a.out.h
acpi-ext.h [IA64] update HP CSR space discovery via ACPI 2006-04-06 14:42:38 -07:00
acpi.h [IA64] - Fix MAX_PXM_DOMAINS for systems with > 256 nodes 2006-04-20 10:16:11 -07:00
agp.h
asmmacro.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
atomic.h [PATCH] atomic: add_unless cmpxchg optimise 2006-03-23 07:38:17 -08:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
bitops.h [IA64] remove asm-ia64/bitops.h self-inclusion 2006-05-05 11:37:15 -07:00
break.h [IA64] enable trap code on slot 1 2006-12-12 12:00:55 -08:00
bug.h [PATCH] remove gcc-2 checks 2006-01-08 20:14:02 -08:00
bugs.h
byteorder.h
cache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cacheflush.h [PATCH] Optimize D-cache alias handling on fork 2006-12-13 09:27:08 -08:00
checksum.h [PATCH] fix prototype of csum_ipv6_magic() (ia64) 2007-01-23 11:09:49 -08:00
compat.h [PATCH] ia64: add ptr_to_compat() 2006-03-27 08:44:48 -08:00
cpu.h
cputime.h
current.h
cyclone.h
delay.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
device.h ACPI: Change ACPI to use dev_archdata instead of firmware_data 2006-12-01 14:52:01 -08:00
div64.h
dma-mapping.h [PATCH] Pass struct dev pointer to dma_cache_sync() 2006-12-07 08:39:41 -08:00
dma.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
dmi.h [PATCH] ia64: use i386 dmi_scan.c 2006-03-26 08:56:54 -08:00
elf.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
emergency-restart.h
errno.h
esi.h [IA64] esi-support 2006-06-21 11:19:22 -07:00
fcntl.h [PATCH] Clean up struct flock definitions 2005-09-07 16:57:38 -07:00
fpswa.h
fpu.h
futex.h [PATCH] mm: pagefault_{disable,enable}() 2006-12-07 08:39:21 -08:00
gcc_intrin.h
hardirq.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
ia32.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ia64regs.h
ide.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
intel_intrin.h [IA64] use icc defined constant 2006-02-07 08:49:27 -08:00
intrinsics.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
io.h Altix: Add initial ACPI IO support 2006-12-01 14:36:57 -08:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h
iosapic.h [IA64] Minor cleanups - remove unnecessary function prototype in iosapic.h 2005-09-07 14:00:40 -07:00
ipcbuf.h
irq_regs.h IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
irq.h [PATCH] genirq ia64 cleanup 2006-07-03 15:26:58 -07:00
Kbuild [PATCH] cleanup asm/setup.h userspace visibility 2006-12-07 08:39:46 -08:00
kdebug.h [PATCH] Notify page fault call chain for ia64 2006-06-26 09:58:22 -07:00
kexec.h [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
kmap_types.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
kprobes.h [IA64] enable trap code on slot 1 2006-12-12 12:00:55 -08:00
kregs.h [IA64] relax per-cpu TLB requirement to DTC 2007-02-06 15:04:48 -08:00
linkage.h [PATCH] abstract type/size specification for assembly 2006-03-24 07:33:25 -08:00
local.h [IA64] Fix missing parameter for local_add/sub 2005-12-07 11:30:11 -08:00
machvec_dig.h [IA64] cleanup dig_irq_init 2006-03-24 13:12:46 -08:00
machvec_hpsim.h
machvec_hpzx1_swiotlb.h [IA64] more robust zx1/sx1000 machvec support 2005-09-14 16:22:11 -07:00
machvec_hpzx1.h [IA64] more robust zx1/sx1000 machvec support 2005-09-14 16:22:11 -07:00
machvec_init.h
machvec_sn2.h [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
machvec.h [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
mc146818rtc.h
mca_asm.h [IA64] Make gp value point to Region 5 in mca handler 2006-09-26 14:13:03 -07:00
mca.h [IA64] Sanitize assembler code for ia64_sal_os_state 2006-06-21 14:44:26 -07:00
meminit.h [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
mman.h [PATCH] IA64,sparc: local DoS with corrupted ELFs 2006-09-08 08:40:46 -07:00
mmu_context.h [IA64] make mmu_context.h and tlb.c 80-column friendly 2005-11-03 14:43:50 -08:00
mmu.h [IA64] Fix race in mm-context wrap-around logic. 2005-08-12 15:05:21 -07:00
mmzone.h [PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM 2005-10-04 13:21:13 -07:00
module.h [PATCH] Move compiler check for modules to ia64 only 2006-09-26 10:52:37 +02:00
msgbuf.h
mutex.h [IA64] fix bug in ia64 __mutex_fastpath_trylock 2006-04-07 22:39:49 -07:00
namei.h
nodedata.h [PATCH] pgdat allocation and update for ia64 of memory hotplug: update pgdat address array 2006-06-27 17:32:37 -07:00
numa.h [PATCH] fix "cpu to node relationship fixup: map cpu to node" 2006-09-27 08:26:08 -07:00
page.h [IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP 2006-12-07 11:24:03 -08:00
pal.h [PATCH] Add support for type argument in PAL_GET_PSTATE 2006-12-07 11:21:55 -08:00
param.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
parport.h
patch.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
pci.h ia64: add pci_get_legacy_ide_irq() 2007-01-27 13:46:54 +01:00
percpu.h [PATCH] lockdep: add per_cpu_offset() 2006-07-03 15:27:00 -07:00
perfmon_default_smpl.h
perfmon.h
pgalloc.h [PATCH] numa node ids are int, page_to_nid and zone_to_nid should return int 2006-12-07 08:39:23 -08:00
pgtable.h [PATCH] Standardize pxx_page macros 2006-09-26 08:48:51 -07:00
poll.h [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 2006-03-25 08:22:56 -08:00
posix_types.h [PATCH] FD_ZERO build fix 2007-01-11 18:18:22 -08:00
processor.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
ptrace_offsets.h
ptrace.h [PATCH] Add regs_return_value() helper 2006-10-02 07:57:16 -07:00
resource.h
rse.h
rwsem.h [PATCH] lockdep: remove RWSEM_DEBUG remnants 2006-07-03 15:27:01 -07:00
sal.h [IA64] move SAL_CACHE_FLUSH check later in boot 2006-10-31 14:32:10 -08:00
scatterlist.h [IA64] Move sg_dma_{len,address} from pci.h to scatterlist.h 2006-12-13 13:15:10 -08:00
sections.h [IA64] remove per-cpu ia64_phys_stacked_size_p8 2007-02-06 15:04:18 -08:00
segment.h
semaphore.h [IA64] Fix bug in ia64 specific down() function 2006-01-17 14:04:00 -08:00
sembuf.h
serial.h
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] irq-flags: IA64: Use the new IRQF_ constants 2006-07-02 13:58:47 -07:00
smp.h Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-09-27 10:53:30 -07:00
socket.h [AF_UNIX]: Datagram getpeersec 2006-06-29 16:58:06 -07:00
sockios.h
sparsemem.h [PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM 2005-10-04 13:21:13 -07:00
spinlock_types.h [PATCH] spinlock consolidation 2005-09-10 10:06:21 -07:00
spinlock.h [PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks 2006-10-01 00:39:21 -07:00
stat.h
statfs.h
string.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
suspend.h
system.h [IA64] sparse cleanups 2006-08-02 16:03:44 -07:00
termbits.h [PATCH] tty: preparatory structures for termios revamp 2006-12-08 08:28:56 -08:00
termios.h
thread_info.h [PATCH] PM: Fix SMP races in the freezer 2006-12-13 09:05:49 -08:00
timex.h [IA64] ia64: simplify and fix udelay() 2006-02-15 13:37:04 -08:00
tlb.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
tlbflush.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
topology.h [PATCH] sched: add option to serialize load balancing 2006-12-10 09:55:43 -08:00
types.h [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
uaccess.h [IA64] don't double >> PAGE_SHIFT pointer for /dev/kmem access 2006-10-26 14:57:06 -07:00
ucontext.h
unaligned.h
uncached.h
unistd.h [PATCH] rename the provided execve functions to kernel_execve 2006-10-02 07:57:23 -07:00
unwind.h [IA64] MCA/INIT: remove obsolete unwind code 2005-09-11 14:09:34 -07:00
user.h
ustack.h [PATCH] Fix 'make headers_check' on ia64 2006-09-16 12:54:32 -07:00
vga.h [PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use 2006-06-22 15:05:58 -07:00
xor.h