linux-stable-rt

History

Hollis Blanchard d4cf3892e5 KVM: ppc: optimize irq delivery path In kvmppc_deliver_interrupt is just one case left in the switch and it is a rare one (less than 8%) when looking at the exit numbers. Therefore we can at least drop the switch/case and if an if. I inserted an unlikely too, but that's open for discussion. In kvmppc_can_deliver_interrupt all frequent cases are in the default case. I know compilers are smart but we can make it easier for them. By writing down all options and removing the default case combined with the fact that ithe values are constants 0..15 should allow the compiler to write an easy jump table. Modifying kvmppc_can_deliver_interrupt pointed me to the fact that gcc seems to be unable to reduce priority_exception[x] to a build time constant. Therefore I changed the usage of the translation arrays in the interrupt delivery path completely. It is now using priority without translation to irq on the full irq delivery path. To be able to do that ivpr regs are stored by their priority now. Additionally the decision made in kvmppc_can_deliver_interrupt is already sufficient to get the value of interrupt_msr_mask[x]. Therefore we can replace the 16x4byte array used here with a single 4byte variable (might still be one miss, but the chance to find this in cache should be better than the right entry of the whole array). Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2008-12-31 16:52:23 +02:00
..
iseries	…
8xx_immap.h	…
8253pit.h	…
Kbuild	…
abs_addr.h	…
agp.h	…
asm-compat.h	…
atomic.h	…
auxvec.h	…
backlight.h	…
bitops.h	…
bootx.h	…
btext.h	…
bug.h	powerpc: Fix asm EMIT_BUG_ENTRY with !CONFIG_BUG	2008-12-16 15:53:23 +11:00
bugs.h	…
byteorder.h	…
cache.h	…
cacheflush.h	…
cell-pmu.h	…
cell-regs.h	…
checksum.h	…
clk_interface.h	…
code-patching.h	…
compat.h	…
cpm.h	…
cpm1.h	…
cpm2.h	…
cputable.h	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
cputhreads.h	…
cputime.h	…
current.h	…
dbdma.h	…
dcr-generic.h	…
dcr-mmio.h	…
dcr-native.h	powerpc/4xx: Extended DCR support v2	2008-12-21 14:21:15 +11:00
dcr-regs.h	…
dcr.h	powerpc: Const-qualify Device Node Argument to DCR Resource Extent API	2008-12-21 14:21:16 +11:00
delay.h	…
device.h	powerpc and sparc: Introduce dev_archdata node accessors	2008-12-03 21:03:54 +11:00
disassemble.h	ppc: Create disassemble.h to extract instruction fields	2008-12-31 16:52:21 +02:00
div64.h	…
dma-mapping.h	powerpc: Fix !CONFIG_PPC_NEED_DMA_SYNC_OPS build warning	2008-12-16 14:39:33 +11:00
dma.h	…
edac.h	…
eeh.h	…
eeh_event.h	…
elf.h	[S390] arch_setup_additional_pages arguments	2008-12-25 13:38:54 +01:00
emergency-restart.h	…
errno.h	…
exception.h	…
fb.h	…
fcntl.h	…
feature-fixups.h	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
firmware.h	…
fixmap.h	…
floppy.h	…
fs_pd.h	…
fsl_gtm.h	…
fsl_lbc.h	…
ftrace.h	…
futex.h	…
gpio.h	…
grackle.h	…
hardirq.h	…
heathrow.h	…
highmem.h	powerpc/44x: Support 16K/64K base page sizes on 44x	2008-12-29 09:53:25 +11:00
hugetlb.h	…
hvcall.h	…
hvconsole.h	…
hvcserver.h	…
hw_irq.h	…
hydra.h	…
i8259.h	…
ibmebus.h	…
ide.h	…
immap_86xx.h	…
immap_cpm2.h	…
immap_qe.h	…
io-defs.h	…
io.h	powerpc: Remove dead BIO_VMERGE_BOUNDARY definition	2008-12-16 15:53:19 +11:00
ioctl.h	…
ioctls.h	…
iommu.h	…
ipcbuf.h	…
ipic.h	…
irq.h	…
irq_regs.h	…
irqflags.h	…
kdebug.h	…
kdump.h	powerpc/32: Wire up the trampoline code for kdump	2008-12-23 15:13:29 +11:00
kexec.h	powerpc/32/kdump: Implement crash_setup_regs() using ppc_save_regs()	2008-12-23 15:13:28 +11:00
keylargo.h	…
kgdb.h	…
kmap_types.h	…
kprobes.h	…
kvm.h	…
kvm_44x.h	KVM: ppc: create struct kvm_vcpu_44x and introduce container_of() accessor	2008-12-31 16:52:22 +02:00
kvm_asm.h	…
kvm_host.h	KVM: ppc: adjust vcpu types to support 64-bit cores	2008-12-31 16:52:22 +02:00
kvm_para.h	…
kvm_ppc.h	KVM: ppc: optimize irq delivery path	2008-12-31 16:52:23 +02:00
libata-portmap.h	…
linkage.h	…
lmb.h	…
local.h	…
lppaca.h	…
lv1call.h	…
machdep.h	…
macio.h	…
mc146818rtc.h	…
mediabay.h	…
mman.h	…
mmu-8xx.h	powerpc/mm: Rework context management for CPUs with no hash table	2008-12-21 14:21:15 +11:00
mmu-40x.h	powerpc/mm: Rework context management for CPUs with no hash table	2008-12-21 14:21:15 +11:00
mmu-44x.h	powerpc/44x: Support 16K/64K base page sizes on 44x	2008-12-29 09:53:25 +11:00
mmu-fsl-booke.h	powerpc/mm: Rework context management for CPUs with no hash table	2008-12-21 14:21:15 +11:00
mmu-hash32.h	…
mmu-hash64.h	…
mmu.h	powerpc/mm: Add SMP support to no-hash TLB handling	2008-12-21 14:21:16 +11:00
mmu_context.h	powerpc/mm: Split mmu_context handling	2008-12-21 14:21:15 +11:00
mmzone.h	…
module.h	…
mpc6xx.h	…
mpc8xx.h	…
mpc52xx.h	powerpc/mpc5200: Document and tidy irq driver	2008-12-21 02:54:26 -07:00
mpc52xx_psc.h	powerpc/mpc5200: add rts/cts handling in PSC UART driver	2008-12-21 02:54:32 -07:00
mpc86xx.h	…
mpc512x.h	…
mpc8260.h	…
mpic.h	…
msgbuf.h	…
msi_bitmap.h	…
mutex.h	…
nvram.h	…
of_device.h	…
of_platform.h	…
ohare.h	…
oprofile_impl.h	…
pSeries_reconfig.h	…
paca.h	…
page.h	powerpc/44x: Support 16K/64K base page sizes on 44x	2008-12-29 09:53:25 +11:00
page_32.h	powerpc/44x: Support 16K/64K base page sizes on 44x	2008-12-29 09:53:25 +11:00
page_64.h	…
param.h	…
parport.h	…
pasemi_dma.h	…
pci-bridge.h	powerpc: Introduce ppc_pci_flags accessors	2008-12-16 15:53:16 +11:00
pci.h	powerpc: Introduce ppc_pci_flags accessors	2008-12-16 15:53:16 +11:00
percpu.h	…
pgalloc-32.h	powerpc: Use RCU based pte freeing mechanism for all powerpc	2008-12-03 20:46:35 +11:00
pgalloc-64.h	powerpc: Use RCU based pte freeing mechanism for all powerpc	2008-12-03 20:46:35 +11:00
pgalloc.h	powerpc: Use RCU based pte freeing mechanism for all powerpc	2008-12-03 20:46:35 +11:00
pgtable-4k.h	…
pgtable-64k.h	…
pgtable-ppc32.h	powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED	2008-12-21 14:21:16 +11:00
pgtable-ppc64.h	powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED	2008-12-21 14:21:16 +11:00
pgtable.h	powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED	2008-12-21 14:21:16 +11:00
phyp_dump.h	…
pmac_feature.h	…
pmac_low_i2c.h	…
pmac_pfunc.h	…
pmc.h	…
pmi.h	…
poll.h	…
posix_types.h	…
ppc-pci.h	…
ppc4xx.h	…
ppc_asm.h	powerpc/32: Add the ability for a classic ppc kernel to be loaded at 32M	2008-12-23 15:13:29 +11:00
processor.h	powerpc: Remove `have_of' global variable	2008-12-16 15:52:57 +11:00
prom.h	powerpc: Add of_find_next_cache_node()	2008-12-21 14:21:14 +11:00
ps3.h	powerpc/ps3: Add sub-match id modalias support	2008-12-16 14:39:33 +11:00
ps3av.h	…
ps3fb.h	…
ps3stor.h	…
ptrace.h	…
qe.h	…
qe_ic.h	…
reg.h	powerpc: Prepare xmon_save_regs for use with kdump	2008-12-23 15:13:28 +11:00
reg_8xx.h	…
reg_booke.h	…
reg_fsl_emb.h	…
resource.h	…
rheap.h	…
rio.h	…
rtas.h	powerpc/pseries: Check for GIQ indicator before calling set-indicator	2008-12-16 15:53:13 +11:00
rtc.h	…
rwsem.h	…
scatterlist.h	…
seccomp.h	…
sections.h	…
sembuf.h	…
serial.h	…
setjmp.h	…
setup.h	…
sfp-machine.h	powerpc: Add SPE/EFP math emulation for E500v1/v2 processors.	2008-12-03 08:19:16 -06:00
shmbuf.h	…
shmparam.h	…
sigcontext.h	…
siginfo.h	…
signal.h	…
smp.h	…
smu.h	…
socket.h	…
sockios.h	…
sparsemem.h	…
spinlock.h	…
spinlock_types.h	…
spu.h	…
spu_csa.h	…
spu_info.h	…
spu_priv1.h	…
sstep.h	…
stat.h	…
statfs.h	…
string.h	…
suspend.h	…
synch.h	…
syscall.h	…
syscalls.h	…
systbl.h	…
system.h	…
tce.h	…
termbits.h	…
termios.h	…
thread_info.h	…
time.h	…
timex.h	…
tlb.h	…
tlbflush.h	powerpc/mm: Split low level tlb invalidate for nohash processors	2008-12-21 14:21:16 +11:00
topology.h	…
tsi108.h	…
tsi108_irq.h	…
tsi108_pci.h	…
types.h	…
uaccess.h	…
ucc.h	…
ucc_fast.h	…
ucc_slow.h	…
ucontext.h	…
udbg.h	…
uic.h	…
unaligned.h	…
uninorth.h	…
unistd.h	…
user.h	…
vdso.h	…
vdso_datapage.h	…
vga.h	…
vio.h	…
xilinx_intc.h	…
xmon.h	…
xor.h	…