linux-toradex.git/arch/sh/oprofile, branch v3.0.2

sh: remove warning and warning_symbol from struct stacktrace_ops

2011-05-23T05:42:15+00:00

Both warning and warning_symbol are nowhere used.
Let's get rid of them.

Signed-off-by: Richard Weinberger 
Signed-off-by: Paul Mundt

sh: oprofile: Make sure the backtrace op is available for timer-fallback.

2010-10-27T08:03:50+00:00

Presently with hardware counter support disabled the backtrace op never
gets initialized. This is a regression over the previous behaviour, so
simply add it back in.

Signed-off-by: Paul Mundt

sh64: oprofile: Fix up kernel stack pointer size mismatch.

2010-10-27T07:58:22+00:00

For the backtrace code its assumed that the stack pointer is 32-bits,
which is not the case with the sh64 registers. Use the shared
kernel_stack_pointer() helper to get at the actual register, which
already takes care of the necessary typecasting.

Signed-off-by: Paul Mundt

sh: oprofile: Fix up and extend op_name_from_perf_id().

2010-10-27T07:51:33+00:00

op_name_from_perf_id() currently returns a local variable, which isn't
terribly productive. As we only handle a single PMU case for now, simply
allocate and free the string from the arch init/exit context and have
op_name_from_perf_id() hand back the cached string.

This also takes UTS_MACHINE in to account, given that we build for
multiple architectures.

Signed-off-by: Paul Mundt

sh: oprofile: Use perf-events oprofile backend

2010-10-11T15:46:16+00:00

Now that we've got a generic perf-events based oprofile backend we might
as well make use of it seeing as SH doesn't do anything special with its
oprofile backend. Also introduce a new CONFIG_HW_PERF_EVENTS symbol so
that we can fallback to using the timer interrupt for oprofile if the
CPU doesn't support perf events.

Also, to avoid a section mismatch warning we need to annotate
oprofile_arch_exit() with an __exit marker.

Signed-off-by: Matt Fleming 
Acked-by: Paul Mundt 
Signed-off-by: Robert Richter

sh: oprofile: Fix up count size mismatch for common impl.

2009-11-05T08:13:15+00:00

This reduces the 'count' size in the common support structure to 32-bits
so that it matches up with what oprofile is expecting. The SH7750 code
was using a nasty oprofilefs hack to expose the 48-bit counter, although
no other implementations were. Now that the offending driver has been
killed off, it's possible to restore some semblance of sanity.

Signed-off-by: Paul Mundt

sh: oprofile: Kill off bitrotted SH7750 driver.

2009-11-05T08:09:59+00:00

This kills off the old SH7750 oprofile driver, preferring perf instead.
As this driver has a number of bugs that no one seems to have noticed,
it's safe to kill this off now rather than providing an extended
transition period.

The old oprofile framework is still kept in place for now, primarily to
give out-of-tree drivers a chance to transition off. But this too will be
killed off in short order.

Signed-off-by: Paul Mundt

sh: oprofile: Kill off dead valid_kernel_stack().

2009-08-13T19:59:50+00:00

This is no longer used, kill it off.

Signed-off-by: Paul Mundt

sh: Use the new stack unwinder API

2009-08-13T10:52:53+00:00

Instead of implementing our own stack unwinder via dump_trace() we
should use the new stack unwinder API because it is more modular. This
change allows us to decouple the interface for generating stacktraces
from the implementation of a stack unwinder.

Signed-off-by: Matt Fleming 
Signed-off-by: Paul Mundt

sh: Use the generalized stacktrace ops

2009-08-13T02:50:08+00:00

Copy the stacktrace ops code from x86 and provide a central function for
use by functions that need to dump a callstack.

Signed-off-by: Matt Fleming 
Signed-off-by: Paul Mundt