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  1. 12 1月, 2009 2 次提交
    • R
      x86: change flush_tlb_others to take a const struct cpumask · 4595f962
      由 Rusty Russell 提交于 
      Impact: reduce stack usage, use new cpumask API.

This is made a little more tricky by uv_flush_tlb_others which
actually alters its argument, for an IPI to be sent to the remaining
cpus in the mask.

I solve this by allocating a cpumask_var_t for this case and falling back
to IPI should this fail.

To eliminate temporaries in the caller, all flush_tlb_others implementations
now do the this-cpu-elimination step themselves.

Note also the curious "cpus_or(f->flush_cpumask, cpumask, f->flush_cpumask)"
which has been there since pre-git and yet f->flush_cpumask is always zero
at this point.
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: NMike Travis <travis@sgi.com>
      4595f962
    • 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
  3. 10 1月, 2009 3 次提交
  5. 09 1月, 2009 29 次提交
  7. 08 1月, 2009 6 次提交
    • B
      [ARM] footbridge: dc21285.c warning fixes · 0dc6c490
      由 Ben Dooks 提交于 
      The dc21285 requests a number of IRQs that it doesn't really
care whether they get added. Change to use a macro that ensures
that at-least the user gets warned if they fail to add, which
also stops the warnings from __unused_result on request_irq().

dc21285.c:337: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:339: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:341: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:343: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:345: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
      0dc6c490
    • B
      [ARM] footbridge: add isa_init_irq() to common header · 39ebfd3f
      由 Ben Dooks 提交于 
      isa_init_irq() is defined in arch/arm/mach-footbridge/isa-irq.c
and used in arch/arm/mach-footbridge/common.c but there is no
definition in any header. Move the definition in common.c to
common.h to stop the sparse warning:

isa-irq.c:118:13: warning: symbol 'isa_init_irq' was not declared.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
      39ebfd3f
    • B
      [ARM] arch/arm/kernel/isa.c: missing definition of register_isa_ports · 87e0d6cc
      由 Ben Dooks 提交于 
      arch/arm/kernel/isa.c should include <linux/io.h> to get the
definition of register_io_ports() at-least when compiling for
footbridge to fix the following sparse warning:

isa.c:68:1: warning: symbol 'register_isa_ports' was not declared.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
      87e0d6cc
    • R
      powerpc/oprofile: fix whitespaces in op_model_cell.c · 25006644
      由 Robert Richter 提交于 
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      25006644
    • C
      powerpc/oprofile: IBM CELL: add SPU event profiling support · 88382329
      由 Carl Love 提交于 
      This patch adds the SPU event based profiling funcitonality for the
IBM Cell processor.  Previously, the CELL OProfile kernel code supported
PPU event, PPU cycle profiling and SPU cycle profiling.   The addition of
SPU event profiling allows the users to identify where in their SPU code
various SPU evnets are occuring.  This should help users further identify
issues with their code.  Note, SPU profiling has some limitations due to HW
constraints.  Only one event at a time can be used for profiling and SPU event
profiling must be time sliced across all of the SPUs in a node.

The patch adds a new arch specific file to the OProfile file system. The
file has bit 0 set to indicate that the kernel supports SPU event profiling.
The user tool must check this file/bit to make sure the kernel supports
SPU event profiling before trying to do SPU event profiling.  The user tool
check is part of the user tool patch for SPU event profiling.
Signed-off-by: NCarl Love <carll@us.ibm.com>
Signed-off-by: NRobert Richter <robert.richter@amd.com>
      88382329
    • R
      powerpc/oprofile: fix cell/pr_util.h · 014cef91
      由 Robert Richter 提交于 
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      014cef91