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  1. 14 1月, 2009 2 次提交
    • S
      ftrace, ia64: IA64 dynamic ftrace support · a14a07b8
      由 Shaohua Li 提交于 
      IA64 dynamic ftrace support.
The original _mcount stub for each function is like:
	alloc r40=ar.pfs,12,8,0
	mov r43=r0;;
	mov r42=b0
	mov r41=r1
	nop.i 0x0
	br.call.sptk.many b0 = _mcount;;

The patch convert it to below for nop:
	[MII] nop.m 0x0
	mov r3=ip
	nop.i 0x0
	[MLX] nop.m 0x0
	nop.x 0x0;;
This isn't completely nop, as there is one instuction 'mov r3=ip', but
it should be light and harmless for code follow it.

And below is for call
	[MII] nop.m 0x0
	mov r3=ip
	nop.i 0x0
	[MLX] nop.m 0x0
	brl.many .;;
In this way, only one instruction is changed to convert code between nop
and call. This should meet dyn-ftrace's requirement.
But this requires CPU support brl instruction, so dyn-ftrace isn't
supported for old Itanium system. Assume there are quite few such old
system running.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NSteven Rostedt <srostedt@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      a14a07b8
    • S
      ftrace, ia64: IA64 static ftrace support · d3e75ff1
      由 Shaohua Li 提交于 
      IA64 ftrace suppport. In IA64, below code will be added in each function
if -pg is enabled.

alloc r40=ar.pfs,12,8,0
mov r43=r0;;
mov r42=b0
mov r41=r1
nop.i 0x0
br.call.sptk.many b0 = _mcount;;
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NSteven Rostedt <srostedt@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      d3e75ff1
  3. 11 1月, 2009 1 次提交
    • P
      trace: mmiotrace to the tracer menu in Kconfig · fe6f90e5
      由 Pekka Paalanen 提交于 
      Impact: cosmetic change in Kconfig menu layout

This patch was originally suggested by Peter Zijlstra, but seems it
was forgotten.

CONFIG_MMIOTRACE and CONFIG_MMIOTRACE_TEST were selectable
directly under the Kernel hacking / debugging menu in the kernel
configuration system. They were present only for x86 and x86_64.

Other tracers that use the ftrace tracing framework are in their own
sub-menu. This patch moves the mmiotrace configuration options there.
Since the Kconfig file, where the tracer menu is, is not architecture
specific, HAVE_MMIOTRACE_SUPPORT is introduced and provided only by
x86/x86_64. CONFIG_MMIOTRACE now depends on it.
Signed-off-by: NPekka Paalanen <pq@iki.fi>
Signed-off-by: NSteven Rostedt <srostedt@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      fe6f90e5
  5. 10 1月, 2009 3 次提交
  7. 09 1月, 2009 29 次提交
  9. 08 1月, 2009 5 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