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  1. 31 1月, 2009 1 次提交
  3. 29 1月, 2009 17 次提交
  5. 21 1月, 2009 1 次提交
  7. 19 1月, 2009 1 次提交
    • M
      x86: Remove never-called arch_setup_msi_irq() · 422e79a8
      由 Michael Ellerman 提交于 
      Since commit 75c46fa6, "x64, x2apic/intr-remap: MSI and MSI-X
support for interrupt remapping infrastructure", x86 has had an
implementation of arch_setup_msi_irqs().

That implementation does not call arch_setup_msi_irq(), instead it calls
setup_irq(). No other x86 code calls arch_setup_msi_irq().

That leaves only arch_setup_msi_irqs() in drivers/pci/msi.c, but that
routine is overridden by the x86 version of arch_setup_msi_irqs().

So arch_setup_msi_irq() is dead code, remove it.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
      422e79a8
  9. 15 1月, 2009 1 次提交
  11. 14 1月, 2009 2 次提交
  13. 13 1月, 2009 1 次提交
  15. 12 1月, 2009 2 次提交
    • M
      irq: change references from NR_IRQS to nr_irqs · 9594949b
      由 Mike Travis 提交于 
      Impact: preparation, cleanup, add KERN_INFO printk

Modify references from NR_IRQS to nr_irqs as the later will become
variable-sized based on nr_cpu_ids when CONFIG_SPARSE_IRQS=y.
Signed-off-by: NMike Travis <travis@sgi.com>
      9594949b
    • M
      cpumask: update irq_desc to use cpumask_var_t · 7f7ace0c
      由 Mike Travis 提交于 
      Impact: reduce memory usage, use new cpumask API.

Replace the affinity and pending_masks with cpumask_var_t's.  This adds
to the significant size reduction done with the SPARSE_IRQS changes.

The added functions (init_alloc_desc_masks & init_copy_desc_masks) are
in the include file so they can be inlined (and optimized out for the
!CONFIG_CPUMASKS_OFFSTACK case.)  [Naming chosen to be consistent with
the other init*irq functions, as well as the backwards arg declaration
of "from, to" instead of the more common "to, from" standard.]

Includes a slight change to the declaration of struct irq_desc to embed
the pending_mask within ifdef(CONFIG_SMP) to be consistent with other
references, and some small changes to Xen.

Tested: sparse/non-sparse/cpumask_offstack/non-cpumask_offstack/nonuma/nosmp on x86_64
Signed-off-by: NMike Travis <travis@sgi.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: virtualization@lists.osdl.org
Cc: xen-devel@lists.xensource.com
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
      7f7ace0c
  17. 08 1月, 2009 1 次提交
  19. 04 1月, 2009 1 次提交
  21. 03 1月, 2009 1 次提交
  23. 30 12月, 2008 1 次提交
  25. 27 12月, 2008 1 次提交
  27. 26 12月, 2008 1 次提交
  29. 24 12月, 2008 1 次提交
    • Y
      x86: fix lguest used_vectors breakage, -v2 · b77b881f
      由 Yinghai Lu 提交于 
      Impact: fix lguest, clean up

32-bit lguest used used_vectors to record vectors, but that model of
allocating vectors changed and got broken, after we changed vector
allocation to a per_cpu array.

Try enable that for 64bit, and the array is used for all vectors that
are not managed by vector_irq per_cpu array.

Also kill system_vectors[], that is now a duplication of the
used_vectors bitmap.

[ merged in cpus4096 due to io_apic.c cpumask changes. ]
[ -v2, fix build failure ]
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      b77b881f
  31. 20 12月, 2008 1 次提交
  33. 19 12月, 2008 1 次提交
    • I
      x86: fix warning in arch/x86/kernel/io_apic.c · a7883dec
      由 Ingo Molnar 提交于 
      this warning:

  arch/x86/kernel/io_apic.c: In function ‘ir_set_msi_irq_affinity’:
  arch/x86/kernel/io_apic.c:3373: warning: ‘cfg’ may be used uninitialized in this function

triggers because the variable was truly uninitialized. We'd crash on
entering this code.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      a7883dec
  35. 17 12月, 2008 5 次提交
    • I
      x86: update io_apic.c to the new cpumask code · d733e00d
      由 Ingo Molnar 提交于 
      Impact: build fix

The sparseirq tree crossed with the cpumask changes, fix the fallout.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      d733e00d
    • M
      x86: Update io_apic.c to use new cpumask API · 22f65d31
      由 Mike Travis 提交于 
      Impact: cleanup, consolidate patches, use new API

Consolidate the following into a single patch to adapt to new
sparseirq code in arch/x86/kernel/io_apic.c, add allocation of
cpumask_var_t's in domain and old_domain, and reduce further
merge conflicts.  Only one file (arch/x86/kernel/io_apic.c) is
changed in all of these patches.

	0006-x86-io_apic-change-irq_cfg-domain-old_domain-to.patch
	0007-x86-io_apic-set_desc_affinity.patch
	0008-x86-io_apic-send_cleanup_vector.patch
	0009-x86-io_apic-eliminate-remaining-cpumask_ts-from-st.patch
	0021-x86-final-cleanups-in-io_apic-to-use-new-cpumask-AP.patch
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: NMike Travis <travis@sgi.com>
      22f65d31
    • M
      x86 smp: modify send_IPI_mask interface to accept cpumask_t pointers · e7986739
      由 Mike Travis 提交于 
      Impact: cleanup, change parameter passing

  * Change genapic interfaces to accept cpumask_t pointers where possible.

  * Modify external callers to use cpumask_t pointers in function calls.

  * Create new send_IPI_mask_allbutself which is the same as the
    send_IPI_mask functions but removes smp_processor_id() from list.
    This removes another common need for a temporary cpumask_t variable.

  * Functions that used a temp cpumask_t variable for:

	cpumask_t allbutme = cpu_online_map;

	cpu_clear(smp_processor_id(), allbutme);
	if (!cpus_empty(allbutme))
		...

    become:

	if (!cpus_equal(cpu_online_map, cpumask_of_cpu(cpu)))
		...

  * Other minor code optimizations (like using cpus_clear instead of
    CPU_MASK_NONE, etc.)

Applies to linux-2.6.tip/master.
Signed-off-by: NMike Travis <travis@sgi.com>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Acked-by: NIngo Molnar <mingo@elte.hu>
      e7986739
    • Y
      x86, sparseirq: move irq_desc according to smp_affinity, v7 · 48a1b10a
      由 Yinghai Lu 提交于 
      Impact: improve NUMA handling by migrating irq_desc on smp_affinity changes

if CONFIG_NUMA_MIGRATE_IRQ_DESC is set:

-  make irq_desc to go with affinity aka irq_desc moving etc
-  call move_irq_desc in irq_complete_move()
-  legacy irq_desc is not moved, because they are allocated via static array

for logical apic mode, need to add move_desc_in_progress_in_same_domain,
otherwise it will not be moved ==> also could need two phases to get
irq_desc moved.
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      48a1b10a
    • M
      x86: fix build error with post-merge of tip/cpus4096 and rr-for-ingo/master. · c8cae544
      由 Mike Travis 提交于 
      Ingo Molnar wrote:

> allyes64 build failure:
>
> arch/x86/kernel/io_apic.c: In function ‘set_ir_ioapic_affinity_irq_desc’:
> arch/x86/kernel/io_apic.c:2295: error: incompatible type for argument 2 of
> ‘migrate_ioapic_irq_desc’
> arch/x86/kernel/io_apic.c: In function ‘ir_set_msi_irq_affinity’:
> arch/x86/kernel/io_apic.c:3205: error: incompatible type for argument 2 of
> ‘set_extra_move_desc’
> make[1]: *** wait: No child processes.  Stop.

Here's a small patch to correct the build error with the post-merge tree.
Built and boot-tested.  I'll will reset the follow on patches in my brand
new git tree to accommodate this change.

Fix two references in io_apic.c that were incorrect.
Signed-off-by: NMike Travis <travis@sgi.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      c8cae544