linux-toradex.git/arch/sh/include/asm/system.h, branch v3.2.6

sh: nommu: Support building without an uncached mapping.

2010-11-04T03:46:19+00:00

Now that nommu selects 32BIT we run in to the situation where SH-2A
supports an uncached identity mapping by way of the BSC, while the SH-2
does not. This provides stubs for the PC manglers and tidies up some of
the system*.h mess in the process.

Signed-off-by: Paul Mundt

sh: provide generic arch_debugfs_dir.

2010-09-23T19:04:26+00:00

While sh previously had its own debugfs root, there now exists a
common arch_debugfs_dir prototype, so we switch everything over to
that.  Presumably once more architectures start making use of this
we'll be able to just kill off the stub kdebugfs wrapper.

Signed-off-by: Paul Mundt

sh: Isolate uncached mapping support.

2010-02-12T06:40:00+00:00

This splits out the uncached mapping support under its own config option,
presently only used by 29-bit mode and 32-bit + PMB. This will make it
possible to optionally add an uncached mapping on sh64 as well as booting
without an uncached mapping for 32-bit.

Signed-off-by: Paul Mundt

sh: Track the uncached mapping size.

2010-01-21T06:54:31+00:00

This provides a variable for tracking the uncached mapping size, and uses
it for pretty printing the uncached lowmem range. Beyond this, we'll also
be building on top of this for figuring out from where the remainder of
P2 becomes usable when constructing unrelated mappings.

Signed-off-by: Paul Mundt

sh: machine_ops based reboot support.

2010-01-20T07:42:52+00:00

This provides a machine_ops-based reboot interface loosely cloned from
x86, and converts the native sh32 and sh64 cases over to it.

Necessary both for tying in SMP support and also enabling platforms like
SDK7786 to add support for their microcontroller-based power managers.

Signed-off-by: Paul Mundt

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

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

sh: Don't perform an icbi on a P2 address

2010-01-13T03:59:24+00:00

The legacy P2 area may not always be mapped (for example when using
PMB). So perform an icbi on an address that we know will always be
mapped.

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

Merge branch 'master' into sh/hw-breakpoints

2009-12-08T06:47:12+00:00

Conflict between FPU thread flag migration and debug
thread flag addition.

Conflicts:
	arch/sh/include/asm/thread_info.h
	arch/sh/include/asm/ubc.h
	arch/sh/kernel/process_32.c

sh: hw-breakpoints: Add preliminary support for SH-4A UBC.

2009-12-08T06:02:27+00:00

This adds preliminary support for the SH-4A UBC to the hw-breakpoints API.
Presently only a single channel is implemented, and the ptrace interface
still needs to be converted. This is the first step to cleaning up the
long-standing UBC mess, making the UBC more generally accessible, and
finally making it SMP safe.

An additional abstraction will be layered on top of this as with the perf
events code to permit the various CPU families to wire up support for
their own specific UBCs, as many variations exist.

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