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kernel-ark/arch/x86/include/asm
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Sebastian Andrzej Siewior 20443598d9 x86: devicetree: Configure IOAPIC pin only once 
We use io_apic_setup_irq_pin() in order to configure pin's interrupt
number polarity and type. This is done on every irq_create_of_mapping()
which happens for instance during pci enable calls. Level typed
interrupts are masked by default, edge are unmasked.

On the first ->xlate() call the level interrupt is configured and
masked. The driver calls request_irq() and the line is unmasked. Lets
assume the interrupt line is shared with another device and we call
pci_enable_device() for this device. The ->xlate() configures the pin
again and it is masked. request_irq() does not unmask the line because
it _is_ already unmasked according to its internal state. So the
interrupt will never be unmasked again.

This patch is based on an earlier work by Torben Hohn and solves the
problem by configuring the pin only once. Since all devices must agree
on the same type and polarity there is no point in configuring the pin
more than once.

[ tglx: Split out the ce4100 part into a separate patch ]

Cc: Torben Hohn <torbenh@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: http://lkml.kernel.org/r/%3C20110427143052.GA15211%40linutronix.de%3E
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-04-28 11:38:30 +02:00
..
uv x86, UV: Initialize the broadcast assist unit base destination node id properly 2011-03-09 16:36:16 +01:00
visws
xen x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
a.out-core.h
a.out.h
acpi.h Merge branch 'linus' into release 2011-03-23 02:34:54 -04:00
aes.h
agp.h
alternative-asm.h
alternative.h Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for-linus', 'x86-paravirt-for-linus', 'core-locking-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-01-06 11:11:50 -08:00
amd_iommu_proto.h x86/amd-iommu: Update copyright headers 2010-10-13 11:13:21 +02:00
amd_iommu_types.h x86/amd-iommu: Update copyright headers 2010-10-13 11:13:21 +02:00
amd_iommu.h Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 14:23:48 -07:00
amd_nb.h Merge branch 'linus' into x86/urgent 2011-03-18 10:39:00 +01:00
apb_timer.h x86, cleanup: Remove obsolete boot_cpu_id variable 2010-08-12 14:01:38 -07:00
apic.h x86: Stop including <linux/delay.h> in two asm header files 2011-03-29 09:37:42 +02:00
apicdef.h x86: Move ioapic_irq_destination_types to apicdef.h 2011-02-23 11:38:44 +01:00
apm.h
arch_hweight.h
asm-offsets.h
asm.h
atomic64_32.h
atomic64_64.h
atomic.h
auxvec.h
bios_ebda.h
bitops.h bitops: remove minix bitops from asm/bitops.h 2011-03-23 19:46:22 -07:00
bitsperlong.h
boot.h x86: support XZ-compressed kernel 2011-01-13 08:03:25 -08:00
bootparam.h x86: Add device tree support 2011-02-23 22:27:52 +01:00
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
calgary.h x86, iommu: Make all IOMMU's detection routines return a value. 2010-08-26 15:13:13 -07:00
calling.h x86, asm: Fix CFI macro invocations to deal with shortcomings in gas 2010-10-19 14:28:02 -07:00
ce4100.h x86: ce4100: Set pci ops via callback instead of module init 2011-03-14 15:13:23 +01:00
checksum_32.h
checksum_64.h
checksum.h
cmpxchg_32.h x86, asm: Merge cmpxchg_486_u64() and cmpxchg8b_emu() 2010-07-28 17:05:11 -07:00
cmpxchg_64.h x86, asm: Clean up and simplify <asm/cmpxchg.h> 2010-07-28 15:24:09 -07:00
cmpxchg.h
compat.h compat: Make compat_alloc_user_space() incorporate the access_ok() 2010-09-14 16:08:45 -07:00
cpu.h x86: Fix mwait_usable section mismatch 2011-02-14 12:08:28 +01:00
cpufeature.h perf, x86: Add support for AMD family 15h core counters 2011-02-16 13:30:53 +01:00
cpumask.h
cputime.h
current.h
debugreg.h x86: Use this_cpu_ops to optimize code 2010-12-30 12:20:28 +01:00
delay.h
desc_defs.h
desc.h
device.h
div64.h
dma-mapping.h dma-mapping: remove dma_is_consistent API 2010-08-11 08:59:21 -07:00
dma.h x86: Stop including <linux/delay.h> in two asm header files 2011-03-29 09:37:42 +02:00
dmi.h
dwarf2.h x86: Use {push,pop}{l,q}_cfi in more places 2010-09-03 08:14:11 +02:00
e820.h x86: e820: Remove conditional early mapping in parse_e820_ext 2011-02-23 22:27:52 +01:00
edac.h
efi.h x86, memblock: Replace e820_/_early string with memblock_ 2010-08-27 11:13:47 -07:00
elf.h
emergency-restart.h
entry_arch.h x86: Allocate 32 tlb_invalidate_interrupt handler stubs 2011-02-14 13:03:08 +01:00
errno.h
fb.h
fcntl.h
fixmap.h x86: Fix Moorestown VRTC fixmap placement 2011-01-11 12:46:16 +01:00
floppy.h
frame.h x86: Use {push,pop}_cfi in more places 2011-02-28 18:06:22 +01:00
ftrace.h
futex.h futex: Sanitize futex ops argument types 2011-03-11 12:23:31 +01:00
gart.h x86, gart: Set DISTLBWALKPRB bit always 2011-04-18 09:26:48 -07:00
genapic.h
geode.h
gpio.h x86/gpio: Implement x86 gpio_to_irq convert function 2011-01-11 12:46:15 +01:00
hardirq.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
highmem.h mm: stack based kmap_atomic() 2010-10-26 16:52:08 -07:00
hpet.h x86: ioapic/hpet: Convert to new chip functions 2010-10-12 16:53:37 +02:00
hugetlb.h
hw_breakpoint.h x86: Fix instruction breakpoint encoding 2010-09-17 03:24:13 +02:00
hw_irq.h x86: Allocate 32 tlb_invalidate_interrupt handler stubs 2011-02-14 13:03:08 +01:00
hypertransport.h
hyperv.h
hypervisor.h xen: HVM X2APIC support 2011-01-07 10:03:50 -05:00
i387.h x86-32, fpu: Fix FPU exception handling on non-SSE systems 2011-04-06 16:53:01 -07:00
i8253.h
i8259.h x86: i8259: Convert to new irq_chip functions 2010-10-12 16:53:36 +02:00
ia32_unistd.h
ia32.h
idle.h
inat_types.h
inat.h
init.h x86: Rename e820_table_* to pgt_buf_* 2011-02-24 14:52:18 +01:00
insn.h
inst.h
intel_scu_ipc.h Remove indirect read write api support. 2010-08-03 09:50:30 -04:00
io_apic.h x86: devicetree: Configure IOAPIC pin only once 2011-04-28 11:38:30 +02:00
io.h Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-10-28 17:11:17 -07:00
ioctl.h
ioctls.h
iomap.h mm: stack based kmap_atomic() 2010-10-26 16:52:08 -07:00
iommu_table.h x86, iommu: Update header comments with appropriate naming 2010-10-08 13:11:21 -07:00
iommu.h
ipcbuf.h
ipi.h x86: Make default_send_IPI_mask_sequence/allbutself_logical() 32bit only 2011-01-28 14:54:05 +01:00
irq_controller.h x86: dtb: Add irq domain abstraction 2011-02-23 22:27:53 +01:00
irq_regs.h
irq_remapping.h x86: Speed up the irq_remapped check in hot pathes 2010-10-12 16:53:42 +02:00
irq_vectors.h x86: Work around old gas bug 2011-03-03 12:47:08 +01:00
irq.h x86: Add device tree support 2011-02-23 22:27:52 +01:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
ist.h
jump_label.h x86: Fix jump label with RO/NX module protection crash 2011-01-23 16:12:45 +01:00
Kbuild archs: replace unifdef-y with header-y 2010-08-14 22:26:51 +02:00
kdebug.h x86, dumpstack: Correct stack dump info when frame pointer is available 2011-03-18 10:51:42 +01:00
kexec.h
kgdb.h kgdb,x86: Individual register get/set for x86 2010-08-05 09:22:20 -05:00
kmap_types.h
kmemcheck.h
kprobes.h
kvm_emulate.h KVM: emulator: Fix io permission checking for 64bit guest 2011-03-17 13:08:33 -03:00
kvm_host.h KVM: MMU: cleanup pte write path 2011-03-17 13:08:35 -03:00
kvm_para.h KVM: x86: Add missing inline tag to kvm_read_and_reset_pf_reason 2011-01-12 11:23:27 +02:00
kvm.h KVM: x86: XSAVE/XRSTOR live migration support 2010-08-01 10:46:37 +03:00
ldt.h
lguest_hcall.h
lguest.h
linkage.h
local64.h
local.h
mach_timer.h
mach_traps.h x86, NMI: Add NMI symbol constants and rename memory parity to PCI SERR 2011-01-07 15:08:51 +01:00
math_emu.h
mc146818rtc.h
mca_dma.h
mca.h
mce.h x86, hwmon: Add core threshold notification to therm_throt.c 2011-01-03 08:30:30 -08:00
memblock.h x86-32, memblock: Make add_highpages honor early reserved ranges 2010-10-05 21:44:35 -07:00
microcode.h x86, microcode, AMD: Cleanup code a bit 2010-11-10 14:54:54 +01:00
mman.h
mmconfig.h
mmu_context.h x86, mm: avoid possible bogus tlb entries by clearing prev mm_cpumask after switching mm 2011-02-03 13:32:39 -08:00
mmu.h x86: add context tag to mark mm when running a task in 32-bit compatibility mode 2011-03-23 16:36:52 -04:00
mmx.h
mmzone_32.h
mmzone_64.h
mmzone.h
module.h
mpspec_def.h x86: Fix APIC ID sizing bug on larger systems, clean up MAX_APICS confusion 2011-01-05 14:09:23 +01:00
mpspec.h x86: Unify cpu/apicid <-> NUMA node mapping between 32 and 64bit 2011-01-28 14:54:09 +01:00
mrst-vrtc.h x86: mrst: Add vrtc driver which serves as a wall clock device 2010-11-11 11:34:27 +01:00
mrst.h x86: mrst: Add vrtc driver which serves as a wall clock device 2010-11-11 11:34:27 +01:00
msgbuf.h
mshyperv.h
msidef.h
msr-index.h x86, amd: Disable GartTlbWlkErr when BIOS forgets it 2011-04-15 16:03:16 -07:00
msr.h x86, gcc-4.6: Avoid unused by set variables in rdmsr 2010-07-20 15:38:18 -07:00
mtrr.h
mutex_32.h
mutex_64.h
mutex.h
mwait.h x86, mwait: Move mwait constants to a common header file 2010-09-17 15:36:40 -07:00
nmi.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
nops.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
numa_32.h x86: Rename incorrectly named parameter of numa_cpu_node() 2011-01-31 18:22:25 +01:00
numa_64.h x86-64, NUMA: Unify emulated distance mapping 2011-02-16 17:11:10 +01:00
numa.h x86, numa: Fix cpu nodemasks for NUMA emulation and CONFIG_DEBUG_PER_CPU_MAPS 2011-04-21 11:31:00 +02:00
numaq.h
olpc_ofw.h x86: OLPC: Make OLPC=n build again 2011-02-23 11:54:02 +01:00
olpc.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
page_32_types.h
page_32.h
page_64_types.h
page_64.h
page_types.h x86-64, NUMA: Revert NUMA affine page table allocation 2011-03-04 10:26:36 +01:00
page.h x86: Document __phys_reloc_hide() usage in __pa_symbol() 2010-08-11 08:43:49 +02:00
param.h
paravirt_types.h thp: add pmd paravirt ops 2011-01-13 17:32:39 -08:00
paravirt.h thp: fix PARAVIRT x86 32bit noPAE 2011-01-26 10:49:57 +10:00
parport.h
pat.h
pci_64.h
pci_x86.h x86/PCI: Clean up pci_cache_line_size 2010-10-18 10:49:30 -04:00
pci-direct.h
pci-functions.h
pci.h x86: Add NX protection for kernel data 2010-11-18 12:52:04 +01:00
percpu.h percpu: Omit segment prefix in the UP case for cmpxchg_double 2011-03-27 19:25:36 -07:00
perf_event_p4.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
perf_event.h perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
pgalloc.h tree-wide: fix comment/printk typos 2010-11-01 15:38:34 -04:00
pgtable_32_types.h
pgtable_32.h mm: remove pte_*map_nested() 2010-10-26 16:52:08 -07:00
pgtable_64_types.h
pgtable_64.h thp: add x86 32bit support 2011-01-13 17:32:44 -08:00
pgtable_types.h thp: add pmd_modify 2011-01-13 17:32:44 -08:00
pgtable-2level_types.h
pgtable-2level.h thp: add x86 32bit support 2011-01-13 17:32:44 -08:00
pgtable-3level_types.h
pgtable-3level.h x86: Flush TLB if PGD entry is changed in i386 PAE mode 2011-03-18 11:44:01 +01:00
pgtable.h thp: don't allow transparent hugepage support without PSE 2011-01-13 17:32:45 -08:00
poll.h
posix_types_32.h
posix_types_64.h
posix_types.h
prctl.h
processor-cyrix.h
processor-flags.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
processor.h x86: Move llc_shared_map out of cpu_info 2011-01-26 08:44:49 +01:00
prom.h x86: dt: Cleanup local apic setup 2011-02-25 16:18:52 +01:00
proto.h
ptrace-abi.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
ptrace.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
pvclock-abi.h
pvclock.h x86/pvclock: Zero last_value on resume 2010-11-28 09:33:20 +01:00
reboot_fixups.h
reboot.h x86, reboot: Move the real-mode reboot code to an assembly file 2011-02-17 21:05:34 -08:00
required-features.h x86, cpu: Support the features flags in new CPUID leaf 7 2010-07-07 17:29:18 -07:00
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h rwsem: Move duplicate function prototypes to linux/rwsem.h 2011-01-27 12:30:39 +01:00
scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
seccomp_32.h
seccomp_64.h
seccomp.h
sections.h
segment.h x86: Make the GDT_ENTRY() macro in <asm/segment.h> safe for assembly 2011-02-17 21:05:13 -08:00
sembuf.h
serial.h
setup_arch.h
setup.h x86: Add CE4100 platform support 2010-11-12 00:45:41 +01:00
shmbuf.h
shmparam.h
sigcontext32.h
sigcontext.h
sigframe.h
siginfo.h
signal.h
smp.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-03-15 19:49:10 -07:00
smpboot_hooks.h x86: Use u32 instead of long to set reset vector back to 0 2011-02-28 16:22:18 +01:00
socket.h
sockios.h
sparsemem.h
spinlock_types.h
spinlock.h
srat.h
stackprotector.h
stacktrace.h x86, dumpstack: Correct stack dump info when frame pointer is available 2011-03-18 10:51:42 +01:00
stat.h
statfs.h
string_32.h
string_64.h
string.h
suspend_32.h
suspend_64.h
suspend.h
svm.h KVM: SVM: copy instruction bytes from VMCB 2011-01-12 11:31:07 +02:00
swab.h
swiotlb.h x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine. 2010-08-26 15:13:29 -07:00
sync_bitops.h
sys_ia32.h Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
syscall.h
syscalls.h Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
system.h x86, system.h: Drop unused __SAVE/__RESTORE macros 2011-02-20 13:38:47 +01:00
tce.h
termbits.h
termios.h
thread_info.h mm: NUMA aware alloc_thread_info_node() 2011-03-22 17:44:01 -07:00
time.h
timer.h x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog 2010-11-18 09:08:23 +01:00
timex.h
tlb.h
tlbflush.h x86-32, mm: Add an initial page table for core bootstrapping 2010-10-20 14:23:55 -07:00
topology.h x86-64, NUMA: Implement generic node distance handling 2011-02-16 17:11:09 +01:00
trampoline.h x86, trampoline: Use the unified trampoline setup for ACPI wakeup 2011-02-17 21:05:06 -08:00
traps.h KVM: Handle async PF in a guest. 2011-01-12 11:23:16 +02:00
tsc.h x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
types.h remove dma64_addr_t 2011-03-23 19:47:18 -07:00
uaccess_32.h
uaccess_64.h
uaccess.h
ucontext.h
unaligned.h
unistd_32.h introduce sys_syncfs to sync a single file system 2011-03-21 00:40:29 -04:00
unistd_64.h introduce sys_syncfs to sync a single file system 2011-03-21 00:40:29 -04:00
unistd.h
user32.h
user_32.h
user_64.h
user.h
vdso.h
vga.h
vgtod.h
virtext.h
vm86.h
vmx.h KVM: VMX: Add definitions for more vm entry/exit control bits 2011-01-12 11:31:08 +02:00
vsyscall.h
x86_init.h x86/platform: Add a wallclock_init func to x86_init.timers ops 2011-02-14 18:20:43 +01:00
xcr.h
xor_32.h
xor_64.h
xor.h
xsave.h Merge branch 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 16:25:13 -07:00