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Dimitri Sivanich 8191c9f692 x86: UV: Address interrupt/IO port operation conflict 
This patch for SGI UV systems addresses a problem whereby
interrupt transactions being looped back from a local IOH,
through the hub to a local CPU can (erroneously) conflict with
IO port operations and other transactions.

To workaound this we set a high bit in the APIC IDs used for
interrupts. This bit appears to be ignored by the sockets, but
it avoids the conflict in the hub.

Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
LKML-Reference: <20101116222352.GA8155@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
___

 arch/x86/include/asm/uv/uv_hub.h   |    4 ++++
 arch/x86/include/asm/uv/uv_mmrs.h  |   19 ++++++++++++++++++-
 arch/x86/kernel/apic/x2apic_uv_x.c |   25 +++++++++++++++++++++++--
 arch/x86/platform/uv/tlb_uv.c      |    2 +-
 arch/x86/platform/uv/uv_time.c     |    4 +++-
 5 files changed, 49 insertions(+), 5 deletions(-)
2010-11-18 10:41:25 +01:00
..
acpi
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
apic
x86: UV: Address interrupt/IO port operation conflict
2010-11-18 10:41:25 +01:00
cpu
perf, amd: Use kmalloc_node(,__GFP_ZERO) for northbridge structure allocation
2010-11-10 22:58:40 +01:00
.gitignore
…
alternative.c
Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-30 11:43:26 -07:00
amd_iommu_init.c
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_iommu.c
x86/amd-iommu: Update copyright headers
2010-10-13 11:13:21 +02:00
amd_nb.c
x86, amd_nb: Enable GART support for AMD family 0x15 CPUs
2010-10-01 16:18:32 -07:00
apb_timer.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
aperture_64.c
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
apm_32.c
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2010-10-24 13:41:39 -07:00
asm-offsets_32.c
x86, asm: Fix CFI macro invocations to deal with shortcomings in gas
2010-10-19 14:28:02 -07:00
asm-offsets_64.c
…
asm-offsets.c
…
audit_64.c
…
bootflag.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
check.c
x86: Use memblock to replace early_res
2010-08-27 11:12:29 -07:00
cpuid.c
x86: convert cpu notifier to return encapsulate errno value
2010-05-27 09:12:48 -07:00
crash_dump_32.c
mm: stack based kmap_atomic()
2010-10-26 16:52:08 -07:00
crash_dump_64.c
mm, x86: Saving vmcore with non-lazy freeing of vmas
2010-09-17 09:11:56 +02:00
crash.c
x86, UV: Make kdump avoid stack dumps
2010-07-21 11:33:27 -07:00
doublefault_32.c
…
dumpstack_32.c
x86, printk: Get rid of <0> from stack output
2010-10-23 20:03:03 +02:00
dumpstack_64.c
x86, printk: Get rid of <0> from stack output
2010-10-23 20:03:03 +02:00
dumpstack.c
x86: Unify dumpstack.h and stacktrace.h
2010-06-08 23:29:52 +02:00
e820.c
x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
2010-08-27 11:13:54 -07:00
early_printk_mrst.c
x86, earlyprintk: Add hsu early console for Intel Medfield platform
2010-10-08 10:01:47 +02:00
early_printk.c
x86, earlyprintk: Add hsu early console for Intel Medfield platform
2010-10-08 10:01:47 +02:00
early-quirks.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:18:06 -07:00
entry_32.S
x86, asm: Fix binutils 2.15 build failure
2010-11-18 09:25:11 +01:00
entry_64.S
Merge branches 'softirq-for-linus', 'x86-debug-for-linus', 'x86-numa-for-linus', 'x86-quirks-for-linus', 'x86-setup-for-linus', 'x86-uv-for-linus' and 'x86-vm86-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-23 08:25:36 -07:00
ftrace.c
jump label: Make dynamic no-op selection available outside of ftrace
2010-09-20 18:19:39 -04:00
head32.c
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-22 20:37:50 -07:00
head64.c
x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S
2010-10-14 09:06:49 +02:00
head_32.S
x86-32, mm: Add an initial page table for core bootstrapping
2010-10-20 14:23:55 -07:00
head_64.S
x86-64: Simplify loading initial_gs
2010-07-21 21:23:51 -07:00
head.c
x86: Use memblock to replace early_res
2010-08-27 11:12:29 -07:00
hpet.c
workqueues: s/ON_STACK/ONSTACK/
2010-10-26 16:52:14 -07:00
hw_breakpoint.c
x86: Fix instruction breakpoint encoding
2010-09-17 03:24:13 +02:00
i386_ksyms_32.c
…
i387.c
Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:34:32 -07:00
i8237.c
…
i8253.c
i8253: Convert i8253_lock to raw_spinlock
2010-03-02 10:28:38 +01:00
i8259.c
x86: i8259: Convert to new irq_chip functions
2010-10-12 16:53:36 +02:00
init_task.c
Rename .data.cacheline_aligned to .data..cacheline_aligned.
2010-03-03 11:25:58 +01:00
io_delay.c
…
ioport.c
x86-64, paravirt: Call set_iopl_mask() on 64 bits
2009-12-09 16:54:08 -08:00
irq_32.c
x86-32: Restore irq stacks NUMA-aware allocations
2010-10-29 08:17:07 +02:00
irq_64.c
x86: Unify fixup_irqs() for 32-bit and 64-bit kernels
2009-11-02 15:56:34 +01:00
irq_work.c
irq_work: Add generic hardirq context callbacks
2010-10-18 19:58:50 +02:00
irq.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
irqinit.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
jump_label.c
jump label: x86 support
2010-09-22 16:33:03 -04:00
kdebugfs.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
kgdb.c
debug_core,x86,blackfin: Clean up hw debug disable API
2010-10-29 13:14:41 -05:00
kprobes.c
jump label: Add jump_label_text_reserved() to reserve jump points
2010-09-22 16:30:46 -04:00
kvm.c
…
kvmclock.c
KVM guest: Move a printk that's using the clock before it's ready
2010-10-24 10:53:06 +02:00
ldt.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
machine_kexec_32.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-08 13:27:33 -08:00
machine_kexec_64.c
x86, cleanups: Use clear_page/copy_page rather than memset/memcpy
2010-09-22 15:36:49 -07:00
Makefile
x86: Move olpc to platform
2010-10-27 17:22:16 +02:00
mca_32.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
microcode_amd.c
x86: Remove unnecessary casts of void ptr returning alloc function return values
2010-11-10 09:13:00 +01:00
microcode_core.c
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2010-10-24 13:41:39 -07:00
microcode_intel.c
Update broken web addresses in arch directory.
2010-10-18 11:03:21 +02:00
mmconf-fam10h_64.c
x86: Adjust section annotations in AMD Fam10 MMCONF enabling code
2010-11-10 10:08:26 +01:00
module.c
Merge commit 'v2.6.36-rc7' into perf/core
2010-10-08 10:46:27 +02:00
mpparse.c
Merge commit 'v2.6.36-rc3' into x86/memblock
2010-08-31 09:45:46 +02:00
msr.c
x86: convert cpu notifier to return encapsulate errno value
2010-05-27 09:12:48 -07:00
paravirt_patch_32.c
…
paravirt_patch_64.c
…
paravirt-spinlocks.c
locking: Convert __raw_spin* functions to arch_spin*
2009-12-14 23:55:32 +01:00
paravirt.c
x86, paravirt: Remove alloc_pmd_clone hook, only used by VMI
2010-08-23 17:09:44 -07:00
pci-calgary_64.c
x86, calgary: Make Calgary IOMMU use IOMMU_INIT_* macros.
2010-08-26 15:14:15 -07:00
pci-dma.c
x86, iommu: Utilize the IOMMU_INIT macros functionality.
2010-08-26 15:14:52 -07:00
pci-gart_64.c
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
pci-iommu_table.c
x86, iommu: Add proper dependency sort routine (and sanity check).
2010-08-26 15:13:19 -07:00
pci-nommu.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
pci-swiotlb.c
x86, swiotlb: Make SWIOTLB use IOMMU_INIT_* macros.
2010-08-26 15:13:37 -07:00
pcspeaker.c
…
probe_roms_32.c
…
process_32.c
x86, perf: Add power_end event to process_*.c cpu_idle routine
2010-06-18 11:35:10 +02:00
process_64.c
x86-64, fpu: Disable preemption when using TS_USEDFPU
2010-09-09 14:16:45 -07:00
process.c
Make do_execve() take a const filename pointer
2010-08-17 18:07:43 -07:00
ptrace.c
ptrace: cleanup arch_ptrace() on x86
2010-10-27 18:03:10 -07:00
pvclock.c
x86, pvclock: Remove leftover scale_delta() function
2010-11-10 10:32:15 +01:00
quirks.c
x86: HPET force enable for CX700 / VIA Epia LT
2010-09-15 16:27:04 +02:00
reboot_fixups_32.c
cs5535: move the DIVIL MSR definition into linux/cs5535.h
2009-12-15 08:53:28 -08:00
reboot.c
Merge branch 'linus' into x86/urgent
2010-10-25 19:38:52 +02:00
relocate_kernel_32.S
…
relocate_kernel_64.S
…
rtc.c
…
setup_percpu.c
Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 18:52:11 -07:00
setup.c
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
2010-10-28 11:59:52 -07:00
signal.c
x86: Merge sys_sigaltstack
2009-12-09 16:28:59 -08:00
smp.c
x86, kexec: Make sure to stop all CPUs before exiting the kernel
2010-10-21 13:30:44 -07:00
smpboot.c
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-27 18:38:55 -07:00
stacktrace.c
x86: Unify save_stack_address() and save_stack_address_nosched()
2010-06-09 17:32:19 +02:00
step.c
x86, ptrace: Fix block-step
2010-03-26 11:33:57 +01:00
sys_i386_32.c
i386: Make kernel_execve() suitable for stack unwinding
2010-09-03 08:16:02 +02:00
sys_x86_64.c
improve sys_newuname() for compat architectures
2010-03-12 15:52:32 -08:00
syscall_64.c
…
syscall_table_32.S
x86: fix up system call numbering nit
2010-08-10 15:35:10 -07:00
tboot.c
Merge branch 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2010-05-21 17:16:21 -07:00
tce_64.c
…
test_nx.c
…
test_rodata.c
…
time.c
x86: Convert i8259_lock to raw_spinlock
2010-02-16 18:21:32 +01:00
tls.c
…
tls.h
…
topology.c
…
trampoline_32.S
…
trampoline_64.S
…
trampoline.c
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-22 20:37:50 -07:00
traps.c
Merge branches 'softirq-for-linus', 'x86-debug-for-linus', 'x86-numa-for-linus', 'x86-quirks-for-linus', 'x86-setup-for-linus', 'x86-uv-for-linus' and 'x86-vm86-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-23 08:25:36 -07:00
tsc_sync.c
locking: Convert __raw_spin* functions to arch_spin*
2009-12-14 23:55:32 +01:00
tsc.c
Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:01:08 -07:00
verify_cpu_64.S
x86: Use symbolic MSR names
2010-07-21 21:23:40 -07:00
vm86_32.c
x86, vm86: Fix preemption bug for int1 debug and int3 breakpoint handlers.
2010-09-23 11:07:49 -07:00
vmlinux.lds.S
Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-22 08:54:21 -07:00
vsmp_64.c
…
vsyscall_64.c
timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset
2010-07-27 12:40:54 +02:00
x86_init.c
x86: Introduce x86_msi_ops
2010-10-18 10:49:34 -04:00
x8664_ksyms_64.c
x86-64: Don't export init_level4_pgt
2010-04-28 17:25:47 -07:00
xsave.c
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