linux.git/arch/sh/kernel/traps_32.c, branch v3.0

sysfs: remove "last sysfs file:" line from the oops messages

2011-05-13T23:05:51+00:00

On some arches (x86, sh, arm, unicore, powerpc) the oops message would
print out the last sysfs file accessed.

This was very useful in finding a number of sysfs and driver core bugs
in the 2.5 and early 2.6 development days, but it has been a number of
years since this file has actually helped in debugging anything that
couldn't also be trivially determined from the stack traceback.

So it's time to delete the line.  This is good as we need all the space
we can get for oops messages at times on consoles.

Acked-by: Phil Carmody 
Acked-by: Ingo Molnar 
Cc: Andrew Morton 
Cc: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

sh: wire up perf alignment and emulation faults.

2010-10-12T21:55:26+00:00

This plugs in the alignment and emulation fault reporting for perf sw
events.

Signed-off-by: Paul Mundt

sh: boot kernel with SR.BL set

2010-09-30T00:43:32+00:00

Update the SH kernel to keep SR.BL set until the VBR
register has been initialized. Useful to allow boot
of the kernel even though exceptions are pending.

Without this patch there is a window of time when
exceptions such as NMI are enabled but no exception
handlers are installed.

This patch modifies both the zImage loader and the
actual kernel to boot with BL=1, but the zImage
loader is modfied in such a way that the init_sr
value is unchanged to not break the zImage loader
provided by kexec.

Tested on sh7724 Ecovec and on the SH4AL-DSP core
included in sh7372.

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

sh: Setup boot CPU VBR early to enable early page faults.

2010-02-17T03:33:22+00:00

vmemmap and the vmsplit code amongst others need to be able to take page
faults much earlier than trap_init() time, so move this in to the early
CPU initialization. VBR setup for secondary CPUs is already handled
through start_secondary(), so we only need to do this for the boot CPU.

Signed-off-by: Paul Mundt

Merge branches 'sh/xstate', 'sh/hw-breakpoints' and 'sh/stable-updates'

2010-01-13T04:02:55+00:00

sh: Split out the unaligned counters and user bits.

2010-01-12T07:12:25+00:00

This splits out the unaligned access counters and userspace bits in to
their own generic interface, which will allow them to be wired up on sh64
too.

Signed-off-by: Paul Mundt

sh: Tidy up the sh bios VBR handling.

2010-01-12T05:50:43+00:00

This moves the VBR handling out of the main trap handling code and in to
the sh-bios helper code. A couple of accessors are added in order to
permit other kernel code to get at the VBR value for state save/restore
paths.

Signed-off-by: Paul Mundt

sh: Fix up breakpoint trap handler patching on SH-2A.

2010-01-05T03:44:02+00:00

SH-2A was referencing the old handler that no longer exists, fix it up.

Signed-off-by: Paul Mundt

sh: Make the unaligned trap handler always obey notification levels.

2009-12-14T02:46:09+00:00

Presently there are a couple of paths in to the alignment handler, where
only the address error path presently quiets the notificiation messages
based on the configuration settings. We carry over the notification level
tests to the default alignment handler itself incase so that they behave
uniformly.

Signed-off-by: Paul Mundt

sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file

2009-11-30T03:02:50+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Paul Mundt