Commit Graph

1349 Commits

Author SHA1 Message Date
Paul Mundt f727565013 sh: Move the CPU definition headers from asm/ to cpu/.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 12:04:53 +09:00
Magnus Damm 7713718751 sh: remove consistent alloc cruft
Remove left overs from the generic declared coherent rework.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:44 +09:00
Magnus Damm 4aeaa22343 sh: add dynamic crash base address support
Add support for dynamic crash kernel base address.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:40 +09:00
Magnus Damm a30c89ad41 sh: reduce Migo-R smc91x overruns
Improve Migo-R ethernet performance by reducing smc91x overruns.
This is done by enabling SMC91X_NOWAIT and optimizing CS4 setup.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:35 +09:00
Paul Mundt 9a19eb2a66 sh: Fix up some merge damage.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:37:58 +09:00
Paul Mundt 4cb40f795a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	Documentation/kernel-parameters.txt
	arch/sh/include/asm/elf.h
2008-10-20 11:17:52 +09:00
Paul Mundt 79ed2a9216 Merge branch 'sh/gpiolib' 2008-10-20 10:40:32 +09:00
Zhaolei 25627c7fd7 Fix debugfs_create_file's error checking method for arch/sh/mm/
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:40:21 +09:00
Zhaolei 9986b311ef Fix debugfs_create_dir's error checking method for arch/sh/kernel/
debugfs_create_dir() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:40:15 +09:00
Nobuhiro Iwamatsu a3e0270663 sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
Renesas AP325RXA board has Epson RX-8564LC of RTC.
This patch supports RTC of this board.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:38:36 +09:00
Magnus Damm 843284d0e4 sh: Use sh7720 GPIO on magicpanelr2 board
This patch hooks up the magicpanelr2 board with the sh7720 pinmux code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:29 +09:00
Magnus Damm c9c3c1b74d sh: Add sh7720 pinmux code
This patch adds pinmux and gpio support for the sh7720 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:25 +09:00
Magnus Damm 7a5c679b52 sh: Use sh7203 GPIO on rsk7203 board
Make the rsk7203 board use the newly added sh7203 pinmux code.
Only a single LED plus the serial console pins for now.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:22 +09:00
Magnus Damm 41e4a9a5e2 sh: Add sh7203 pinmux code
This patch adds pinmux and gpio support for the sh7203 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:18 +09:00
Magnus Damm 16587c453b sh: Use sh7723 GPIO on AP325RXA board
This patch enables the GPIO code on AP325RXA and converts the code from
register based pinmux configuration to GPIO based pin by pin setup.
While at it 2 LEDs and one switch are added and exported to user space.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:15 +09:00
Magnus Damm 0436ec15ae sh: Add sh7723 pinmux code
This patch adds pinmux and gpio support for the sh7723 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:12 +09:00
Magnus Damm 91b6f3c525 sh: Use sh7722 GPIO on Migo-R board
This patch enables the GPIO code on Migo-R and converts the code from
register based pinmux configuration to GPIO based pin by pin setup.
Fix whitespace damage while at it and add 2 LEDs and export them to
user space.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:08 +09:00
Magnus Damm 8d7b5b0af7 sh: Add sh7722 pinmux code
This patch adds pinmux and gpio support for the sh7722 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:34:05 +09:00
Magnus Damm 2967dab1ae sh: GPIO and pinmux base code
This patch adds gpio code together with the pinmux table parser.
In the future we should optimize this and switch back to gpiolib.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:33:50 +09:00
Martin Schwidefsky 0b59268285 [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
The SET_PERSONALITY macro is always called with a second argument of 0.
Remove the ibcs argument and the various tests to set the PER_SVR4
personality.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-16 15:40:05 +02:00
Paul Mundt 14866543ad sh: More I/O routine overhauling.
This tidies up a lot of the PIO/MMIO split. No in-tree platforms were
making use of the MMIO overloading through the machvec (nor have any of
them been in some time), so we just kill all of that off. The ISA I/O
routine wrapping remains unaffected, which remains the only special
casing outside of the iomap API that boards need to think about.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-04 05:25:52 +09:00
Paul Mundt 225c9a8d1d video: sh_mobile_lcdcfb: Support HAVE_CLK=n configurations.
This provides a workaround for users of sh_mobile_lcdcfb that don't
define HAVE_CLK and have otherwise sane clock initialization.

At the same time, move the sh_mobile_lcdc.h header to include/video/.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 16:24:32 +09:00
Paul Mundt bbfbd8b151 sh: Move the shared INTC code out to drivers/sh/
The INTC code will be re-used across different architectures, so move
this out to drivers/sh/ and include/linux/sh_intc.h respectively.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 16:13:54 +09:00
Paul Mundt 62429e0364 sh: Use __raw_xxx() I/O accessors for INTC and IPR.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 15:19:10 +09:00
Paul Mundt 64c9627c26 sh: Fix up the __raw_read/writeX() definitions.
These were doing largely bogus things and using the wrong typing for
the address. Bring these in line with the ARM definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01 15:12:27 +09:00
Paul Mundt bdeb3be7cc sh: Use clk fwk for preset lpj on sh64, too.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 20:14:44 +09:00
Paul Mundt 4d01cdafba sh: SH-5 clk fwk support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 20:09:17 +09:00
Paul Mundt 50b72e600b sh: sh_ksyms_64 needs __strncpy_from_user() definition.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 19:45:16 +09:00
Paul Mundt 091db04559 sh: Fix up signal_64 cast warnings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 19:44:40 +09:00
Paul Mundt 88856d67cf sh: Fix up uaccess_64 put/get_user() cast warnings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29 19:43:44 +09:00
Paul Mundt 1bec157a1f sh: Force pending restarted system calls to return -EINTR.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-24 14:37:35 +09:00
Nobuhiro Iwamatsu aa88f169d6 sh: ap325rxa: create CPLD data area in mtd
AP320 and AP325RXA has CPLD data in NOR Flash.
If this area erased, this board can not boot.
This patch create CPLD data area and set writeable mask bit.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-24 13:57:42 +09:00
Paul Mundt e7ab3cd251 sh: Add FPU registers to regset interface.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 19:04:55 +09:00
Paul Mundt 4b4cf7595a sh: Add missing asm/ftrace.h.
This was missed with the ftrace support commit.. check it in now.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 17:17:53 +09:00
Paul Mundt 9d2b1f81dd sh: ftrace support.
This adds support for ftrace to SH. This only includes CONFIG_FTRACE,
and does not handle dynamic ftrace presently.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 16:43:45 +09:00
Paul Mundt 3d58695edb sh: Trivial trace_mark() instrumentation for core events.
This implements a few trace points across events that are deemed
interesting. This implements a number of trace points:

	- The page fault handler / TLB miss
	- IPC calls
	- Kernel thread creation

The original LTTng patch had the slow-path instrumented, which
fails to account for the vast majority of events. In general
placing this in the fast-path is not a huge performance hit, as
we don't take page faults for kernel addresses.

The other bits of interest are some of the other trap handlers, as
well as the syscall entry/exit (which is better off being handled
through the tracehook API). Most of the other trap handlers are corner
cases where alternate means of notification exist, so there is little
value in placing extra trace points in these locations.

Based on top of the points provided both by the LTTng instrumentation
patch as well as the patch shipping in the ST-Linux tree, albeit in a
stripped down form.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 13:56:39 +09:00
Paul Mundt 8f2baee280 sh: Kill off duplicate page fault notifiers in slow path.
We already have hooks in place in the __do_page_fault() fast-path,
so kill them off in the slow path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 12:11:25 +09:00
Paul Mundt 887f1ae3bc sh: Look up the trap vector for the page fault notifier.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 12:06:43 +09:00
Paul Mundt 4c59e2942e sh: Move lookup_exception_vector() out to asm/system_32.h.
There are other places where we want to have access to the trap/exception
number, so move out the lookup_exception_vector() helper. While we're at
it, refactor it slightly to return the vector instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 12:00:23 +09:00
Luca Santini 347cd34f4b sh: edosk7760: Correct size of bootloader flash partition.
This is 256K instead of 1M.

[ Converted to use asm/sizes.h. -- PFM ]

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 10:32:29 +09:00
Paul Mundt d3ea00a36d sh: Add a few more definitions to asm/sizes.h.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 10:31:57 +09:00
Paul Mundt 837c946aad sh: Copy in asm/sizes.h helper from ARM.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21 10:24:18 +09:00
Paul Mundt c15c5f8c2b sh: Support kernel stacks smaller than a page.
This follows the powerpc commit f6a616800e
'[POWERPC] Fix kernel stack allocation alignment'.

SH has traditionally forced the thread order to be relative to the page
size, so there were never any situations where the same bug was
triggered by slub. Regardless, the usage of > 8kB stacks for the larger
page sizes is overkill, so we switch to using slab allocations there,
as per the powerpc change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-20 20:21:33 +09:00
Paul Mundt b817f7e020 sh: Disable 4kB stacks when using PAGE_SIZE_64KB.
This combination triggers a divide by zero in kernel/fork.c when
calculating the initial max_threads value:

	max_threads = mempages / (8 * THREAD_SIZE / PAGE_SIZE);

Simply disable 4K stacks on 64kB PAGE_SIZE to work around this,
as it's not a terribly useful combination to begin with.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-20 20:16:35 +09:00
Paul Mundt 2194478157 sh: HAVE_IOREMAP_PROT depends on MMU.
HAVE_IOREMAP_PROT enables an unconditional reference to
generic_access_phys(), which remains undefined in the nommu case.
As there's no point in supporting this there anyways, simply fix
up the dependency.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:26:44 +09:00
Paul Mundt b406efefd5 sh: Fix up headers_check regression.
linux/mmzone.h isn't exported, kill it off from asm/setup.h and simply
deal with it in the places that have a dependency instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:24:59 +09:00
Paul Mundt 81b669952e sh: Consolidate struct sh_cpuinfo definitions across _32/_64 split.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:24:02 +09:00
Paul Mundt 8a80a5e9e8 sh: Fix up signal_64 conflicting handle_signal() definition.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:14:36 +09:00
Paul Mundt b85641bdde sh: Make memory hot-add and hot-remove depend on MMU.
Cleans up link numerous build issues with page migration and so on when
enabled on nommu builds.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:13:27 +09:00
Paul Mundt b3d765f5df sh: Fix up fpu emu build.
The addition of the kprobes code pushed down a variable declaration,
clean it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17 23:12:11 +09:00
Paul Mundt 5a89f1adbc sh: latencytop support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-13 01:44:03 +09:00
Paul Mundt 0e660d2d43 sh: Tidy up ELF core dumps.
These have been using overrides for ELF_CORE_COPY_TASK_REGS and
ELF_CORE_COPY_FPREGS while the generic versions can be used instead.
Presently the pt_regs are also duplicated across elf_core_copy_regs()
and elf_core_copy_task_regs(), this switches to simply copying out
through elf_core_copy_regs() instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 23:27:46 +09:00
Paul Mundt 72461997c3 sh: Check SR.DSP bit for DSP regset validity.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:56:35 +09:00
Paul Mundt f9540ececa sh: Add missing task_user_regset_view() definition.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:42:43 +09:00
Paul Mundt 5dadb34394 sh: Add DSP registers to regset interface.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:42:10 +09:00
Paul Mundt 6bff1592d8 sh: Fix up NUMA build error with se7722_defconfig.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:41:30 +09:00
Paul Mundt 3231739d97 sh: Enable HAVE_ARCH_TRACEHOOK.
Now that the rest of the support requirements are out of the way, finally
enable support for tracehook.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:13:36 +09:00
Paul Mundt fb4f87a2f0 sh: Provide the asm/syscall.h interface, needed by tracehook.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:13:13 +09:00
Paul Mundt 9996b42ac0 sh: provide user_stack_pointer(), needed for tracehook support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:11:36 +09:00
Paul Mundt f8b890ab4c sh: Flag T-bit for syscall restart.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 22:08:20 +09:00
Paul Mundt cb700aa4f1 sh: ioremap_prot support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 20:41:05 +09:00
Paul Mundt 934135c19d sh: ptrace: Introduce user_regset interface for gp regs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 19:52:36 +09:00
Paul Mundt 0955874846 sh: Provide a fixed UTS_MACHINE definition for sh64.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 18:58:28 +09:00
Luca Santini 1b582d19ce sh: update edosk7760 defconfig for physmap-flash.
Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 18:08:01 +09:00
Luca Santini 4018ffcfdf sh: edosk7760 physmap-flash support.
Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12 18:07:16 +09:00
roel kluin b21a910435 sh: intc_prio_data() test before subtraction on unsigned
bit is unsigned, so test before subtraction

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-10 12:01:46 +09:00
Paul Mundt 6eb2139b3d sh: kprobes: kretprobe_trampoline needs to be global.
Needed by CONFIG_TRACING.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-09 08:13:28 +09:00
Paul Mundt 61098a0866 sh: Add R2D+ defconfig for qemu system emulator.
This adds a defconfig for the R2D+ target in the qemu system emulator.
Eventually it will be possible to simply use the r2d+ defconfig as it is.

Provided by Shin-ichiro KAWASAKI.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-09 06:15:47 +09:00
Manfred Spraul e545a6140b kernel/cpu.c: create a CPU_STARTING cpu_chain notifier
Right now, there is no notifier that is called on a new cpu, before the new
cpu begins processing interrupts/softirqs.
Various kernel function would need that notification, e.g. kvm works around
by calling smp_call_function_single(), rcu polls cpu_online_map.

The patch adds a CPU_STARTING notification. It also adds a helper function
that sends the message to all cpu_chain handlers.

Tested on x86-64.
All other archs are untested. Especially on sparc, I'm not sure if I got
it right.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-08 19:25:24 +02:00
Paul Mundt cf204fa797 sh: Derive calibrate_delay lpj from clk fwk.
All CPUs must have a sensible cpu_clk definition these days, which we can
safely use for deriving the preset loops_per_jiffy. The only odd one out
is SH-5, which hasn't been hammered in to the framework yet.

Based on the ST patch.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 20:47:42 +09:00
Paul Mundt 4eb5845d6c sh: kprobes: __kprobes annotations and formatting cleanups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:22:47 +09:00
Paul Mundt 734db3770d sh: kprobes: Fix up race against probe point removal.
Handle a corner case where another CPU or debugger removes the probe
point from underneath us.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:15:55 +09:00
Paul Mundt 247bc6d2ae sh: kprobes: Fix up a preemption imbalance on jprobe return.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:14:50 +09:00
Paul Mundt ee386de774 sh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.
Presently this is doing a force_sig() SIGTRAP, which is already taken
care of in the generic code if no one asserts NOTIFY_STOP. Switch the
default return to NOTIFY_DONE in the case of unhandled traps, so that
the same trap may pass through to other users on the same die chain.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:12:33 +09:00
Paul Mundt 174b5c9923 sh: kprobes: Use trapa #0x3a for breakpoint trap.
Not all parts support trapa #0xff, so use something within the debug trap
range that's accessible on all parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 18:10:10 +09:00
Paul Mundt 037c10a612 sh: kprobes: Hook up kprobe_fault_handler() in the page fault path.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:22:47 +09:00
Paul Mundt fc63562ac2 sh: Disable seccomp support by default.
This was initially checked in with a stupid default of y, while most
everyone is going to want to have this disabled anyways.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:10:35 +09:00
Paul Mundt e7cb016e5a sh: Mark kretprobe_trampoline_holder static and __used.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:02:17 +09:00
Paul Mundt 4ad06dd6f1 sh: Add EDOSK7760 mach type.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:01:55 +09:00
Luca Santini 3db9170880 sh: Add Renesas EDOSK7760 board support.
This adds support for the Renesas (RTE) EDOSK7760 board. Currently
supported devices are:

	 - ramdisk support
	 - ethernet support
	 - nfs support
	 - ext2/ext3 support
	 - i2c support
	 - fb support (M)

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 12:01:15 +09:00
Luca Santini 53abf911fa sh: Enable IRLM mode for SH7760 IRQ_MODE_IRQ.
Follows the same setting as SH7750.

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 11:54:56 +09:00
Paul Mundt 205a3b4328 sh: uninline flush_icache_all().
This uses jump_to_uncached() which is now given the noinline attribute
due to the special section mapping. Kill off the inline attribute to
fix up compilation failure.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:06 +09:00
Paul Mundt 6907e6a601 sh: Add the rest of the boot targets to arch/sh/boot/.gitignore.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Chris Smith d39f545014 sh: Add kprobes support.
Initial support for kprobes/kretprobes for 32-bit SH platforms.

[ General cleanup and some rework for the kretprobe hash lock. -- PFM ]

Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Marek Skuczynski b6c20e4290 sh: remove unnecessary memset after alloc_bootmem_low_pages
Because alloc_bootmem functions return the allocated memory always
zeroed, an additional call of memset on allocated memory is
unnecessary.

Signed-off-by: Marek Skuczynski <M.Skuczynski@adbglobal.com>
Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Francesco Virlinzi 61c66387e6 sh: fix the TMU code to allow a fully running NO_HZ system
This patch fixes the TMU code to allow NO_HZ to work on sh

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Carl Shaw b6ad1e8c3f sh: Subnormal double to float conversion
This patch adds support for the SH4 to convert a subnormal double
into a float by catching the FPE and implementing the FCNVDS
instruction in software.

Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Stuart Menefy f040ddaf4c sh: Fix an unusual memory initialisation error.
This fixes a problems with the set up of Linux memory:

 - When reserving memory at boot time, the code previously reserved
   the bottom page of memory, and then from one page up to the end of
   the bootmap. This had the desired effect, but was strictly speaking
   wrong, as the one page was actually whatever CONFIG_ZERO_PAGE_OFFSET
   had been set to.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:05 +09:00
Chris Smith 664718a343 sh: Fix uImage load address in 32-bit mode.
Fix "make uImage" load and entry addresses in 32-bit mode.

Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Stuart Menefy 96e14e54a6 sh: vmalloc pgtable sync fix.
This fixes a problem in the code which copies the vmalloc portion of the
kernel's page table into the current user space page table. The addition
of the four level page table code breaks on folded page tables, because
the pud level is always present (although folded). This updates the code
to use the same style of updates for the pud as is used for the pgd
level.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Stuart Menefy 28d6e52cf7 sh: Fix up broken 32-bit initrd support.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Stuart Menefy c6feb6142c sh: early cached_to_uncached initialization.
statically initialise the cached_to_uncached offset, so that we can use
it immediatly.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt 3159e7d62a sh: Add support for memory hot-remove.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt 5840263ecb sh: Don't enable clockevents broadcasting on UP SH-X3 builds.
Fixes up compile errors with missing timer definitions. It's pointless to
have this enabled anyways if CONFIG_SMP=n.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt fa43972fab sh: fixup many sparse errors.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:04 +09:00
Paul Mundt 7d96169cb7 sh: Display CPU information in show_regs().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 53c01d2dc3 sh: Early dummy clockevent registration on boot CPU.
The dummy timer needs to be registered on the boot CPU before the
system timer clockevent is registered, or broadcasting doesn't work
as advertized.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 71f0bdcab6 sh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop.
Without this, certain versions of GCC will happily optimize the entire
loop out.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 8c24594dea sh: generic clockevent broadcast support.
This hooks up GENERIC_CLOCKEVENTS_BROADCAST and a dummy local timer,
which we call in to from the timer IPI when no other local timer is
provided.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00
Paul Mundt 6f52707e68 sh: smp: Hook up a timer IPI stub.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08 10:35:03 +09:00