Philippe Bergheaud 00f554fade powerpc: memcpy optimization for 64bit LE ... Unaligned stores take alignment exceptions on POWER7 running in little-endian. This is a dumb little-endian base memcpy that prevents unaligned stores. Once booted the feature fixup code switches over to the VMX copy loops (which are already endian safe). The question is what we do before that switch over. The base 64bit memcpy takes alignment exceptions on POWER7 so we can't use it as is. Fixing the causes of alignment exception would slow it down, because we'd need to ensure all loads and stores are aligned either through rotate tricks or bytewise loads and stores. Either would be bad for all other 64bit platforms. [ I simplified the loop a bit - Anton ] Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2014-04-30 15:26:18 +10:00
..
8xx_immap.h
agp.h
archrandom.h	random: Add arch_has_random[_seed]()	2014-03-19 22:24:08 -04:00
asm-compat.h
asm-offsets.h
async_tx.h
atomic.h
backlight.h
barrier.h
bitops.h
bootx.h
btext.h
bug.h
bugs.h
cache.h
cacheflush.h
cell-pmu.h
cell-regs.h
checksum.h
cmpxchg.h
code-patching.h
compat.h	powerpc/compat: 32-bit little endian machine name is ppcle, not ppc	2014-03-24 10:16:04 +11:00
context_tracking.h
cpm1.h
cpm2.h
cpm.h
cputable.h	powerpc: Add a cpu feature CPU_FTR_PMAO_BUG	2014-03-24 09:48:24 +11:00
cputhreads.h
cputime.h
current.h
dbdma.h
dbell.h
dcr-generic.h
dcr-mmio.h
dcr-native.h
dcr-regs.h
dcr.h
debug.h
delay.h
device.h
disassemble.h
div64.h
dma-mapping.h	powerpc/powernv: Add iommu DMA bypass support for IODA2	2014-02-11 16:07:37 +11:00
dma.h
edac.h
eeh_event.h
eeh.h	powerpc/powernv: Fundamental reset on PLX ports	2014-04-28 17:35:05 +10:00
ehv_pic.h
elf.h
emergency-restart.h
emulated_ops.h	powerpc: Add lq/stq emulation	2014-04-09 12:53:28 +10:00
epapr_hcalls.h
exception-64e.h	powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlers	2014-03-19 19:57:15 -05:00
exception-64s.h	powerpc/book3s: Fix CFAR clobbering issue in machine check handler.	2014-03-24 10:16:09 +11:00
exec.h
fadump.h	include/linux/crash_dump.h: add vmcore_cleanup() prototype	2014-04-07 16:36:06 -07:00
fb.h
feature-fixups.h
firmware.h
fixmap.h
floppy.h
fs_pd.h
fsl_85xx_cache_sram.h
fsl_gtm.h
fsl_guts.h
fsl_hcalls.h
fsl_lbc.h
fsl_pamu_stash.h
ftrace.h
futex.h
gpio.h
grackle.h
hardirq.h
heathrow.h
highmem.h
hugetlb.h	powerpc/mm: Add new "set" flag argument to pte/pmd update function	2014-02-17 11:19:35 +11:00
hvcall.h	powerpc: Add hvcalls for 24x7 and gpci (Get Performance Counter Info)	2014-03-24 09:48:28 +11:00
hvconsole.h
hvcserver.h
hvsi.h
hw_breakpoint.h
hw_irq.h
hydra.h
i8259.h
ibmebus.h
ide.h
immap_cpm2.h
immap_qe.h
io_event_irq.h
io-defs.h
io-workarounds.h
io.h
iommu.h	powerpc/powernv: Add iommu DMA bypass support for IODA2	2014-02-11 16:07:37 +11:00
ipic.h
irq_regs.h
irq.h
irqflags.h
jump_label.h
Kbuild	locking/mcs: Allow architecture specific asm files to be used for contended case	2014-02-09 21:18:52 +01:00
kdebug.h
kdump.h
kexec.h
keylargo.h
kgdb.h
kmap_types.h
kprobes.h
kvm_44x.h
kvm_asm.h
kvm_book3s_32.h
kvm_book3s_64.h	KVM: PPC: Book3S HV: Don't use kvm_memslots() in real mode	2014-03-29 19:58:35 +11:00
kvm_book3s_asm.h	KVM: PPC: Book3S HV: Save/restore host PMU registers that are new in POWER8	2014-03-29 19:58:52 +11:00
kvm_book3s.h	KVM: PPC: Book3S HV: Fix incorrect userspace exit on ioeventfd write	2014-03-26 23:33:44 +11:00
kvm_booke_hv_asm.h	powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlers	2014-03-19 19:57:15 -05:00
kvm_booke.h
kvm_fpu.h
kvm_host.h
kvm_para.h
kvm_ppc.h	KVM: PPC: Book3S: Introduce hypervisor call H_GET_TCE	2014-03-26 23:34:27 +11:00
libata-portmap.h
linkage.h
local64.h
local.h
lppaca.h
lv1call.h
machdep.h	powerpc: powernv: Framework to show the correct clock in /proc/cpuinfo	2014-04-28 17:36:38 +10:00
macio.h
mc146818rtc.h
mce.h	powerpc/book3s: Recover from MC in sapphire on SCOM read via MMIO.	2014-03-07 15:52:10 +11:00
mediabay.h
mman.h
mmu_context.h
mmu-8xx.h
mmu-40x.h
mmu-44x.h
mmu-book3e.h	powerpc/e6500: Make TLB lock recursive	2014-03-19 19:57:13 -05:00
mmu-hash32.h
mmu-hash64.h
mmu.h
mmzone.h
module.h
mpc5xxx.h
mpc6xx.h
mpc8xx.h
mpc52xx_psc.h
mpc52xx.h
mpc85xx.h
mpc5121.h
mpc8260.h
mpic_msgr.h
mpic_timer.h
mpic.h
msi_bitmap.h
mutex.h
nvram.h
ohare.h
opal.h	powerpc/powernv: Return secondary CPUs to firmware before FW update	2014-04-28 17:36:34 +10:00
oprofile_impl.h
paca.h	powerpc/booke64: Critical and machine check exception support	2014-03-19 19:57:27 -05:00
page_32.h
page_64.h
page.h
parport.h
pasemi_dma.h
pci-bridge.h
pci.h
percpu.h
perf_event_fsl_emb.h
perf_event_server.h	powerpc/perf: Define perf_event_print_debug() to print PMU register values	2014-03-24 09:48:23 +11:00
perf_event.h
pgalloc-32.h
pgalloc-64.h
pgalloc.h
pgtable-ppc32.h
pgtable-ppc64-4k.h
pgtable-ppc64-64k.h
pgtable-ppc64.h	powerpc/mm: Add new "set" flag argument to pte/pmd update function	2014-02-17 11:19:35 +11:00
pgtable.h	mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit	2014-02-17 11:19:36 +11:00
plpar_wrappers.h
pmac_feature.h
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h
ppc4xx_ocm.h
ppc4xx.h
ppc_asm.h
ppc-opcode.h
ppc-pci.h	powerpc/eeh: No hotplug on permanently removed dev	2014-04-28 17:34:32 +10:00
probes.h
processor.h	powerpc/powernv: Add context management for Fast Sleep	2014-03-05 15:56:31 +11:00
prom.h
ps3.h
ps3av.h
ps3gpu.h
ps3stor.h
pte-8xx.h
pte-40x.h
pte-44x.h
pte-book3e.h
pte-common.h
pte-fsl-booke.h
pte-hash32.h
pte-hash64-4k.h
pte-hash64-64k.h
pte-hash64.h
ptrace.h	powerpc: Increase stack redzone for 64-bit userspace to 512 bytes	2014-02-28 18:06:26 +11:00
qe_ic.h
qe.h
reg_8xx.h
reg_a2.h
reg_booke.h
reg_fsl_emb.h
reg.h	powerpc/tm: Add checking to treclaim/trechkpt	2014-04-28 17:36:51 +10:00
rheap.h
rio.h
rtas.h	powerpc/le: Enable RTAS events support	2014-04-07 10:33:12 +10:00
rtc.h
runlatch.h
scatterlist.h
scom.h
sections.h	powerpc: Fix kdump hang issue on p8 with relocation on exception enabled.	2014-02-11 11:24:47 +11:00
serial.h
setjmp.h
setup.h
sfp-machine.h
shmparam.h
signal.h
smp.h	powerpc: Implement tick broadcast IPI as a fixed IPI message	2014-03-05 15:55:04 +11:00
smu.h
sparsemem.h
spinlock_types.h
spinlock.h
spu_csa.h
spu_info.h
spu_priv1.h
spu.h
sstep.h
string.h	powerpc: memcpy optimization for 64bit LE	2014-04-30 15:26:18 +10:00
swab.h
swiotlb.h
switch_to.h
synch.h
syscall.h
syscalls.h
systbl.h
tce.h
termios.h
thread_info.h
time.h	powerpc: Implement tick broadcast IPI as a fixed IPI message	2014-03-05 15:55:04 +11:00
timex.h
tlb.h
tlbflush.h
tm.h	Merge branch 'kvm-ppchv-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-next	2014-03-29 15:44:05 +01:00
topology.h	sched: Remove unused mc_capable() and smt_capable()	2014-03-11 12:05:45 +01:00
trace.h
tsi108_irq.h
tsi108_pci.h
tsi108.h
types.h
uaccess.h
ucc_fast.h
ucc_slow.h
ucc.h
udbg.h
uic.h
unaligned.h
uninorth.h
unistd.h
uprobes.h
user.h
vdso_datapage.h
vdso.h	powerpc: Link VDSOs at 0x0	2014-02-17 11:19:37 +11:00
vga.h
vio.h
word-at-a-time.h
wsp.h
xics.h
xilinx_intc.h
xilinx_pci.h
xmon.h
xor.h