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1812924bb1
linux/arch/x86/kernel
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Cliff Wickman 1812924bb1 x86, SGI UV: TLB shootdown using broadcast assist unit 
TLB shootdown for SGI UV.

Depends on patch (in tip/x86/irq):
   x86-update-macros-used-by-uv-platform.patch   Jack Steiner May 29

This patch provides the ability to flush TLB's in cpu's that are not on
the local node.  The hardware mechanism for distributing the flush
messages is the UV's "broadcast assist unit".

The hook to intercept TLB shootdown requests is a 2-line change to
native_flush_tlb_others() (arch/x86/kernel/tlb_64.c).

This code has been tested on a hardware simulator. The real hardware
is not yet available.

The shootdown statistics are provided through /proc/sgi_uv/ptc_statistics.
The use of /sys was considered, but would have required the use of
many /sys files.  The debugfs was also considered, but these statistics
should be available on an ongoing basis, not just for debugging.

Issues to be fixed later:
- The IRQ for the messaging interrupt is currently hardcoded as 200
  (see UV_BAU_MESSAGE).  It should be dynamically assigned in the future.
- The use of appropriate udelay()'s is untested, as they are a problem
  in the simulator.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:22 +02:00
..
acpi Merge branch 'linus' into x86/irq 2008-07-08 12:23:00 +02:00
cpu [CPUFREQ] Crusoe: longrun cpufreq module reports false min freq 2008-05-19 18:17:28 -04:00
.gitignore
alternative.c x86: harden kernel code patching 2008-04-25 19:54:07 +02:00
aperture_64.c x86: clean up aperture_64.c 2008-04-17 17:41:19 +02:00
apic_32.c x86: change FIRST_SYSTEM_VECTOR to a variable, fix 2008-05-12 21:28:06 +02:00
apic_64.c x86: don't read maxlvt before checking if APIC is mapped 2008-05-23 14:08:06 +02:00
apm_32.c Merge branches 'release', 'acpica', 'bugzilla-10224', 'bugzilla-9772', 'bugzilla-9916', 'ec', 'eeepc', 'idle', 'misc', 'pm-legacy', 'sysfs-links-2.6.26', 'thermal', 'thinkpad' and 'video' into release 2008-04-30 13:58:00 -04:00
asm-offsets_32.c x86: use kbuild.h 2008-04-29 08:06:29 -07:00
asm-offsets_64.c x86: use kbuild.h 2008-04-29 08:06:29 -07:00
asm-offsets.c
audit_64.c
bootflag.c x86: coding style cleanup for kernel/bootflag.c 2008-01-30 13:32:31 +01:00
bugs_64.c x86: don't use large pages to map the first 2/4MB of memory 2008-04-17 17:41:30 +02:00
cpuid.c PM: Remove destroy_suspended_device() 2008-04-19 19:10:28 -07:00
crash_dump_32.c
crash_dump_64.c
crash.c x86: allow machine_crash_shutdown to be replaced 2008-04-27 12:00:29 +03:00
doublefault_32.c x86: unify tss_struct 2008-01-30 13:31:31 +01:00
ds.c x86: debug Store - call kfree if only we really need it 2008-04-17 17:41:34 +02:00
e820_32.c x86: rename find_max_pfn() to propagate_e820_map() 2008-04-19 19:19:55 +02:00
e820_64.c bootprotocol: cleanup 2008-04-29 13:45:24 +02:00
early_printk.c x86: coding style fixes to x86/kernel/early_printk.c 2008-04-17 17:40:51 +02:00
early-quirks.c x86: fix section mismatch warning in early-quirks.c 2008-01-30 13:33:37 +01:00
efi_32.c x86: fix Intel Mac booting with EFI 2008-07-03 08:19:18 +02:00
efi_64.c x86: EFI_PAGE_SHIFT fix 2008-04-19 19:19:54 +02:00
efi_stub_32.S
efi_stub_64.S x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
efi.c x86: EFI_PAGE_SHIFT fix 2008-04-19 19:19:54 +02:00
entry_32.S Merge branch 'linus' into x86/irq 2008-06-16 11:27:45 +02:00
entry_64.S x86, SGI UV: TLB shootdown using broadcast assist unit 2008-07-08 12:23:22 +02:00
genapic_64.c fix: x86: support for new UV apic 2008-04-30 23:15:34 +02:00
genapic_flat_64.c x86: use cpumask_of_cpu() 2008-04-17 17:41:36 +02:00
genx2apic_uv_x.c x86, uv: update macros used by UV platform 2008-06-02 12:56:00 +02:00
geode_32.c x86, geode: add a VSA2 ID for General Software 2008-06-19 14:19:03 +02:00
head32.c x86: introduce kernel/head32.c 2008-04-17 17:40:49 +02:00
head64.c x86, boot: add linked list of struct setup_data 2008-04-26 21:34:42 +02:00
head_32.S x86: fix asm warning in head_32.S 2008-06-12 21:26:12 +02:00
head_64.S x86 ACPI: fix resume from suspend to RAM on uniprocessor x86-64 2008-07-05 08:42:28 +02:00
hpet.c hpet: fix 2008-04-30 23:15:34 +02:00
i386_ksyms_32.c Generic semaphore implementation 2008-04-17 10:42:34 -04:00
i387.c ptrace GET/SET FPXREGS broken 2008-06-30 14:35:18 +02:00
i8237.c
i8253.c x86: cleanup div_sc() usage 2008-04-26 17:35:47 +02:00
i8259.c i8259: fix final ugliness 2008-06-02 11:55:52 +02:00
init_task.c [PATCH] take init_files to fs/file.c 2008-05-16 17:22:20 -04:00
io_apic_32.c Merge branch 'linus' into x86/irq 2008-06-16 11:27:45 +02:00
io_apic_64.c x86: change FIRST_SYSTEM_VECTOR to a variable 2008-05-12 21:28:06 +02:00
io_delay.c x86: add dmi quirk for io_delay 2008-03-26 22:23:40 +01:00
ioport.c x86: refactor ioport unification 2008-01-30 13:33:10 +01:00
ipi.c x86: create ipi.c 2008-04-17 17:40:56 +02:00
irq_32.c x86: irq_32 move 4kstacks code to one place 2008-05-12 21:28:06 +02:00
irq_64.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
irqinit_32.c x86: rename the i8259_32/64.c leftovers to irqinit_32/64.c 2008-05-24 16:47:39 +02:00
irqinit_64.c x86: rename the i8259_32/64.c leftovers to irqinit_32/64.c 2008-05-24 16:47:39 +02:00
k8.c
kdebugfs.c x86, boot: export linked list of struct setup_data via debugfs 2008-04-26 21:34:42 +02:00
kgdb.c x86: KGDB build fix 2008-04-19 19:19:54 +02:00
kprobes.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
kvm.c x86: KVM guest: hypercall batching 2008-04-27 12:00:28 +03:00
kvmclock.c x86: KVM guest: Use the paravirt clocksource structs and functions 2008-06-24 21:02:33 +03:00
ldt.c x86: cleanup - eliminate numbers in LDT allocation code 2008-02-04 16:48:03 +01:00
machine_kexec_32.c vmcoreinfo: fix the configuration dependencies 2008-02-07 08:42:25 -08:00
machine_kexec_64.c vmcoreinfo: add the symbol "phys_base" 2008-04-02 15:28:19 -07:00
Makefile x86, SGI UV: TLB shootdown using broadcast assist unit 2008-07-08 12:23:22 +02:00
mca_32.c x86: coding style fixes to arch/x86/kernel/mca_32.c 2008-04-17 17:40:49 +02:00
mfgpt_32.c geode: fix modular build 2008-06-12 21:25:51 +02:00
microcode.c x86: use new set_cpus_allowed_ptr function 2008-04-19 19:44:58 +02:00
mmconf-fam10h_64.c x86: add pci=check_enable_amd_mmconf and dmi check 2008-04-26 23:41:04 +02:00
module_32.c
module_64.c
mpparse.c x86: es7000 build fix 2008-05-04 20:04:45 +02:00
msr.c PM: Remove destroy_suspended_device() 2008-04-19 19:10:28 -07:00
nmi_32.c Revert "x86: fix ioapic bug again" 2008-06-12 21:26:28 +02:00
nmi_64.c ftrace: add notrace annotations for NMI routines 2008-04-19 19:19:55 +02:00
numaq_32.c x86: convert TSC disabling to generic cpuid disable bitmap 2008-01-30 13:33:20 +01:00
olpc.c x86: olpc: add One Laptop Per Child architecture support 2008-04-29 08:06:07 -07:00
paravirt_patch_32.c x86: move patching code to arch-specific file. 2008-01-30 13:32:10 +01:00
paravirt_patch_64.c x86: add stringify header 2008-01-30 13:33:19 +01:00
paravirt.c x86: add pud_alloc for 4-level pagetables 2008-04-24 23:57:31 +02:00
pci-calgary_64.c x86: remove duplicate get_bios_ebda() from rio.h 2008-04-26 17:35:47 +02:00
pci-dma.c x86, pci-dma.c: don't always add __GFP_NORETRY to gfp 2008-06-10 12:22:18 +02:00
pci-gart_64.c suspend-vs-iommu: prevent suspend if we could not resume 2008-06-04 13:11:47 +02:00
pci-nommu.c x86: unify pci-nommu 2008-04-19 19:19:57 +02:00
pci-swiotlb_64.c x86: dma-ops on highmem fix 2008-04-19 19:19:56 +02:00
pcspeaker.c
pmtimer_64.c x86: move pmtmr related declarations 2008-01-30 13:30:18 +01:00
process_32.c x86: fix NULL pointer deref in __switch_to 2008-06-19 10:08:45 +02:00
process_64.c x86: fix NULL pointer deref in __switch_to 2008-06-19 10:08:45 +02:00
process.c x86: disable mwait for AMD family 10H/11H CPUs 2008-05-17 22:57:20 +02:00
ptrace.c x86: user_regset_view table fix for ia32 on 64-bit 2008-05-13 19:40:20 +02:00
pvclock.c x86: Add structs and functions for paravirt clocksource 2008-06-24 21:02:31 +03:00
quirks.c x86: hpet clock enable quirk on nVidia nForce 430 2008-03-21 17:06:15 +01:00
reboot_fixups_32.c x86: add the RDC machine specific reboot fixup 2008-01-30 13:33:36 +01:00
reboot.c x86: remove dell reboot dmi quirk board name match 2008-05-04 20:04:45 +02:00
relocate_kernel_32.S x86: relocate_kernel - use predefined macroses for page attributes 2008-04-17 17:41:29 +02:00
relocate_kernel_64.S x86: relocate_kernel - use predefined macroses for page attributes 2008-04-17 17:41:29 +02:00
rtc.c provide rtc_cmos platform device 2008-06-12 18:05:42 -07:00
scx200_32.c x86: fix sparse warning in kernel/scx200_32.c 2008-01-31 22:05:45 +01:00
setup64.c x86: fix exec mappings comments 2008-04-19 19:19:55 +02:00
setup_32.c x86: use BOOTMEM_EXCLUSIVE on 32-bit 2008-06-19 10:08:48 +02:00
setup_64.c x86: early_init_centaur(): use set_cpu_cap() 2008-05-13 19:37:38 +02:00
setup.c x86: [VOYAGER] fix duplicate phys_cpu_present_map symbol 2008-05-12 21:27:51 +02:00
sigframe.h x86: move struct definitions to unifed sigframe.h 2008-04-17 17:40:46 +02:00
signal_32.c signals: x86 TS_RESTORE_SIGMASK 2008-04-30 08:29:37 -07:00
signal_64.c signals: x86 TS_RESTORE_SIGMASK 2008-04-30 08:29:37 -07:00
smp.c x86: fix app crashes after SMP resume 2008-05-13 19:36:12 +02:00
smpboot.c x86: fix cpu hotplug crash 2008-06-30 13:15:43 +02:00
smpcommon_32.c x86: create smpcommon.c 2008-04-17 17:40:55 +02:00
smpcommon.c x86: create smpcommon.c 2008-04-17 17:40:55 +02:00
srat_32.c x86: replace remaining __FUNCTION__ occurances 2008-04-17 17:40:57 +02:00
stacktrace.c x86: don't save unreliable stack trace entries 2008-02-26 12:55:58 +01:00
step.c x86: prevent unconditional writes to DebugCtl MSR 2008-04-17 17:40:58 +02:00
summit_32.c x86: use get_bios_ebda() 2008-04-26 17:35:47 +02:00
sys_i386_32.c unified (weak) sys_pipe implementation 2008-05-03 13:50:33 -07:00
sys_x86_64.c unified (weak) sys_pipe implementation 2008-05-03 13:50:33 -07:00
syscall_64.c x86: coding style fixes to arch/x86/kernel/syscall_64.c 2008-04-17 17:40:48 +02:00
syscall_table_32.S timerfd: wire the new timerfd API to the x86 family 2008-02-05 09:44:07 -08:00
tce_64.c
test_nx.c x86: Explicitly include required header files. 2008-04-17 17:41:15 +02:00
test_rodata.c x86: include proper prototypes for rodata_test 2008-02-14 23:30:20 +01:00
time_32.c proper extern for late_time_init 2008-04-29 08:06:03 -07:00
time_64.c time: fix typo in comments 2008-02-08 09:22:29 -08:00
tlb_32.c x86: create tlb files 2008-04-17 17:40:56 +02:00
tlb_64.c x86, SGI UV: TLB shootdown using broadcast assist unit 2008-07-08 12:23:22 +02:00
tlb_uv.c x86, SGI UV: TLB shootdown using broadcast assist unit 2008-07-08 12:23:22 +02:00
tls.c asmlinkage_protect replaces prevent_tail_call 2008-04-10 17:28:26 -07:00
tls.h x86: x86 user_regset TLS 2008-01-30 13:31:52 +01:00
topology.c x86: fix section mismatch warning in topology.c:arch_register_cpu 2008-02-19 16:18:30 +01:00
trampoline_32.S x86: trampoline_32.S - switch to .cpuinit.data 2008-04-26 17:35:47 +02:00
trampoline_64.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
trampoline.c x86: standalone trampoline code 2008-04-17 17:41:37 +02:00
traps_32.c x86, lockdep: fix "WARNING: at kernel/lockdep.c:2658 check_flags+0x4c/0x128()" 2008-06-12 21:27:19 +02:00
traps_64.c x86, fpu: lazy allocation of FPU area - v5 2008-04-19 19:19:55 +02:00
tsc_32.c x86, 32-bit: fix boot failure on TSC-less processors 2008-06-19 10:08:47 +02:00
tsc_64.c x86: fix setup of cyc2ns in tsc_64.c 2008-05-23 14:08:06 +02:00
tsc_sync.c x86: add warning to check_tsc_warp() 2008-01-30 13:33:24 +01:00
verify_cpu_64.S
vm86_32.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
vmi_32.c x86: unify KERNEL_PGD_PTRS 2008-04-24 23:57:31 +02:00
vmiclock_32.c x86: unify interrupt vector defines 2008-05-12 21:28:05 +02:00
vmlinux_32.lds.S x86: use ELF section to list CPU vendor specific code 2008-04-17 17:40:47 +02:00
vmlinux_64.lds.S x86_64 vDSO: use initdata 2008-04-28 13:49:35 -07:00
vmlinux.lds.S
vsmp_64.c x86: fix warning in "x86: clean up vSMP detection" 2008-04-29 13:45:24 +02:00
vsyscall_64.c "make namespacecheck" fixes 2008-04-24 23:15:44 +02:00
x8664_ksyms_64.c x86: fix csum_partial() export 2008-05-13 19:38:47 +02:00