linux-toradex.git/arch/sh/kernel/traps.c, branch v3.10.2

taint: add explicit flag to show whether lock dep is still OK.

2013-01-21T06:47:57+00:00

Fix up all callers as they were before, with make one change: an
unsigned module taints the kernel, but doesn't turn off lockdep.

Signed-off-by: Rusty Russell

sh: Consolidate die definitions for trap handlers.

2012-06-14T05:18:51+00:00

This kills off the _64 versions and consolidates on the more robust _32
versions instead.

Signed-off-by: Paul Mundt

Disintegrate asm/system.h for SH

2012-03-28T17:30:03+00:00

Disintegrate asm/system.h for SH.

Signed-off-by: David Howells 
cc: linux-sh@vger.kernel.org

sh: Mass ctrl_in/outX to __raw_read/writeX conversion.

2010-01-26T03:58:40+00:00

The old ctrl in/out routines are non-portable and unsuitable for
cross-platform use. While drivers/sh has already been sanitized, there
is still quite a lot of code that is not. This converts the arch/sh/ bits
over, which permits us to flag the routines as deprecated whilst still
building with -Werror for the architecture code, and to ensure that
future users are not added.

Signed-off-by: Paul Mundt

sh64: Fix up the CONFIG_GENERIC_BUG=n build.

2009-11-12T07:39:47+00:00

sh64 doesn't use GENERIC_BUG, which presently causes the handle_BUG()
code to blow up. Fix up the dependencies and get it all building again.

Signed-off-by: Paul Mundt

sh: Count NMIs in irq_cpustat_t.

2009-10-14T07:42:28+00:00

This plugs in support for NMI counting per-CPU via irq_cpustat_t.
Modelled after the x86 implementation.

Signed-off-by: Paul Mundt

sh: nmi_debug support.

2009-09-01T08:38:32+00:00

This implements support for NMI debugging that was shamelessly copied
from the avr32 port. A bit of special magic is needed in the interrupt
exception path given that the NMI exception handler is stubbed in to the
regular exception handling table despite being reported in INTEVT. So we
mangle the lookup and kick off an EXPEVT-style exception dispatch from
the INTEVT path for exceptions that do_IRQ() has no chance of handling.
As a result, we also drop the evt2irq() conversion from the do_IRQ() path
and just do it in assembly.

Signed-off-by: Paul Mundt

sh: unwinder: Use a special bug flag for unwinder traps.

2009-08-21T20:28:25+00:00

This simplifies the unwinder trap handling, dropping the use of the
special trapa vector and simply piggybacking on top of the BUG support. A
new BUGFLAG_UNWINDER is added for flagging the unwinder fault, before
continuing on with regular BUG dispatch.

Signed-off-by: Paul Mundt

sh: unwinder: Introduce UNWINDER_BUG() and UNWINDER_BUG_ON()

2009-08-21T12:02:44+00:00

We can't assume that if we execute the unwinder code and the unwinder
was already running that it has faulted. Clearly two kernel threads can
invoke the unwinder at the same time and may be running simultaneously.

The previous approach used BUG() and BUG_ON() in the unwinder code to
detect whether the unwinder was incapable of unwinding the stack, and
that the next available unwinder should be used instead. A better
approach is to explicitly invoke a trap handler to switch unwinders when
the current unwinder cannot continue.

Signed-off-by: Matt Fleming

sh: unbreak WARN_ON()

2009-06-17T06:39:52+00:00

Fix WARN_ON() by modifying the bug trap handling code to
always return in the in-kernel instruction pointer case.

Signed-off-by: Magnus Damm 
Signed-off-by: Paul Mundt