pandora-kernel.git
15 years agoMerge branch 'sh/gpiolib'
Paul Mundt [Mon, 20 Oct 2008 01:40:32 +0000 (10:40 +0900)]
Merge branch 'sh/gpiolib'

15 years agoFix debugfs_create_file's error checking method for arch/sh/mm/
Zhaolei [Fri, 17 Oct 2008 11:25:09 +0000 (19:25 +0800)]
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>
15 years agoFix debugfs_create_dir's error checking method for arch/sh/kernel/
Zhaolei [Fri, 17 Oct 2008 11:25:03 +0000 (19:25 +0800)]
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>
15 years agosh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
Nobuhiro Iwamatsu [Fri, 17 Oct 2008 07:53:57 +0000 (16:53 +0900)]
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>
15 years agosh: Use sh7720 GPIO on magicpanelr2 board
Magnus Damm [Wed, 8 Oct 2008 11:42:56 +0000 (20:42 +0900)]
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>
15 years agosh: Add sh7720 pinmux code
Magnus Damm [Wed, 8 Oct 2008 11:42:46 +0000 (20:42 +0900)]
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>
15 years agosh: Use sh7203 GPIO on rsk7203 board
Magnus Damm [Wed, 8 Oct 2008 11:42:38 +0000 (20:42 +0900)]
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>
15 years agosh: Add sh7203 pinmux code
Magnus Damm [Wed, 8 Oct 2008 11:42:29 +0000 (20:42 +0900)]
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>
15 years agosh: Use sh7723 GPIO on AP325RXA board
Magnus Damm [Wed, 8 Oct 2008 11:42:20 +0000 (20:42 +0900)]
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>
15 years agosh: Add sh7723 pinmux code
Magnus Damm [Wed, 8 Oct 2008 11:42:10 +0000 (20:42 +0900)]
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>
15 years agosh: Use sh7722 GPIO on Migo-R board
Magnus Damm [Wed, 8 Oct 2008 11:42:01 +0000 (20:42 +0900)]
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>
15 years agosh: Add sh7722 pinmux code
Magnus Damm [Wed, 8 Oct 2008 11:41:52 +0000 (20:41 +0900)]
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>
15 years agosh: GPIO and pinmux base code
Magnus Damm [Wed, 8 Oct 2008 11:41:43 +0000 (20:41 +0900)]
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>
15 years agosh: More I/O routine overhauling.
Paul Mundt [Fri, 3 Oct 2008 20:25:52 +0000 (05:25 +0900)]
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>
15 years agoMerge branch 'sh/g3-prep'
Paul Mundt [Thu, 2 Oct 2008 10:14:11 +0000 (19:14 +0900)]
Merge branch 'sh/g3-prep'

15 years agoserial: sh-sci: Dynamic clock management depends on HAVE_CLK.
Paul Mundt [Thu, 2 Oct 2008 10:09:13 +0000 (19:09 +0900)]
serial: sh-sci: Dynamic clock management depends on HAVE_CLK.

Presently this is conditionalized on sh, and disabled for sh64.
Now that SH-5 ties in to the clock framework, the sh64 exception
can be dropped. Additionally, ARM will want to use the same hooks
once SH-Mobile G3 grows clock framework support, so switch these
paths over to HAVE_CLK now.

Once the H8 and ARM sh-sci users hook up HAVE_CLK, the driver can
be switched over to having an outright dependency on it and the
ifdefs can go away.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agovideo: sh_mobile_lcdcfb: Support HAVE_CLK=n configurations.
Paul Mundt [Wed, 1 Oct 2008 07:24:32 +0000 (16:24 +0900)]
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>
15 years agosh: Move the shared INTC code out to drivers/sh/
Paul Mundt [Wed, 1 Oct 2008 07:13:54 +0000 (16:13 +0900)]
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>
15 years agoserial: sh-sci: Handle the general UPF_IOREMAP case.
Paul Mundt [Wed, 1 Oct 2008 06:46:58 +0000 (15:46 +0900)]
serial: sh-sci: Handle the general UPF_IOREMAP case.

Presently we don't do much with UPF_IOREMAP other than special case it
for SH-5's onchip_remap() on the early console. Tie this in generically
for platforms that need the remap.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Use __raw_xxx() I/O accessors for INTC and IPR.
Paul Mundt [Wed, 1 Oct 2008 06:19:10 +0000 (15:19 +0900)]
sh: Use __raw_xxx() I/O accessors for INTC and IPR.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Fix up the __raw_read/writeX() definitions.
Paul Mundt [Wed, 1 Oct 2008 06:12:27 +0000 (15:12 +0900)]
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>
15 years agosh: Use clk fwk for preset lpj on sh64, too.
Paul Mundt [Mon, 29 Sep 2008 11:14:44 +0000 (20:14 +0900)]
sh: Use clk fwk for preset lpj on sh64, too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: SH-5 clk fwk support.
Paul Mundt [Mon, 29 Sep 2008 11:09:17 +0000 (20:09 +0900)]
sh: SH-5 clk fwk support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: sh_ksyms_64 needs __strncpy_from_user() definition.
Paul Mundt [Mon, 29 Sep 2008 10:45:16 +0000 (19:45 +0900)]
sh: sh_ksyms_64 needs __strncpy_from_user() definition.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Fix up signal_64 cast warnings.
Paul Mundt [Mon, 29 Sep 2008 10:44:40 +0000 (19:44 +0900)]
sh: Fix up signal_64 cast warnings.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Fix up uaccess_64 put/get_user() cast warnings.
Paul Mundt [Mon, 29 Sep 2008 10:43:44 +0000 (19:43 +0900)]
sh: Fix up uaccess_64 put/get_user() cast warnings.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Force pending restarted system calls to return -EINTR.
Paul Mundt [Wed, 24 Sep 2008 05:37:35 +0000 (14:37 +0900)]
sh: Force pending restarted system calls to return -EINTR.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: ap325rxa: create CPLD data area in mtd
Nobuhiro Iwamatsu [Wed, 24 Sep 2008 02:46:48 +0000 (11:46 +0900)]
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>
15 years agosh: Add FPU registers to regset interface.
Paul Mundt [Sun, 21 Sep 2008 10:04:55 +0000 (19:04 +0900)]
sh: Add FPU registers to regset interface.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add missing asm/ftrace.h.
Paul Mundt [Sun, 21 Sep 2008 08:17:53 +0000 (17:17 +0900)]
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>
15 years agodoc: Add remaining SH parameters to kernel-parameters.txt.
Paul Mundt [Sun, 21 Sep 2008 08:14:42 +0000 (17:14 +0900)]
doc: Add remaining SH parameters to kernel-parameters.txt.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: ftrace support.
Paul Mundt [Sun, 21 Sep 2008 07:43:45 +0000 (16:43 +0900)]
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>
15 years agosh: Trivial trace_mark() instrumentation for core events.
Paul Mundt [Sun, 21 Sep 2008 04:56:39 +0000 (13:56 +0900)]
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>
15 years agosh: Kill off duplicate page fault notifiers in slow path.
Paul Mundt [Sun, 21 Sep 2008 03:11:25 +0000 (12:11 +0900)]
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>
15 years agosh: Look up the trap vector for the page fault notifier.
Paul Mundt [Sun, 21 Sep 2008 03:06:43 +0000 (12:06 +0900)]
sh: Look up the trap vector for the page fault notifier.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Move lookup_exception_vector() out to asm/system_32.h.
Paul Mundt [Sun, 21 Sep 2008 03:00:23 +0000 (12:00 +0900)]
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>
15 years agosh: edosk7760: Correct size of bootloader flash partition.
Luca Santini [Sun, 21 Sep 2008 01:32:29 +0000 (10:32 +0900)]
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>
15 years agosh: Add a few more definitions to asm/sizes.h.
Paul Mundt [Sun, 21 Sep 2008 01:31:57 +0000 (10:31 +0900)]
sh: Add a few more definitions to asm/sizes.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Copy in asm/sizes.h helper from ARM.
Paul Mundt [Sun, 21 Sep 2008 01:24:18 +0000 (10:24 +0900)]
sh: Copy in asm/sizes.h helper from ARM.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Support kernel stacks smaller than a page.
Paul Mundt [Sat, 20 Sep 2008 11:21:33 +0000 (20:21 +0900)]
sh: Support kernel stacks smaller than a page.

This follows the powerpc commit f6a616800e68b61807d0f7bb0d5dc70665ef8046
'[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>
15 years agosh: Disable 4kB stacks when using PAGE_SIZE_64KB.
Paul Mundt [Sat, 20 Sep 2008 11:16:35 +0000 (20:16 +0900)]
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>
15 years agosh: HAVE_IOREMAP_PROT depends on MMU.
Paul Mundt [Wed, 17 Sep 2008 14:26:44 +0000 (23:26 +0900)]
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>
15 years agosh: Fix up headers_check regression.
Paul Mundt [Wed, 17 Sep 2008 14:24:59 +0000 (23:24 +0900)]
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>
15 years agosh: Consolidate struct sh_cpuinfo definitions across _32/_64 split.
Paul Mundt [Wed, 17 Sep 2008 14:24:02 +0000 (23:24 +0900)]
sh: Consolidate struct sh_cpuinfo definitions across _32/_64 split.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Fix up signal_64 conflicting handle_signal() definition.
Paul Mundt [Wed, 17 Sep 2008 14:14:36 +0000 (23:14 +0900)]
sh: Fix up signal_64 conflicting handle_signal() definition.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Make memory hot-add and hot-remove depend on MMU.
Paul Mundt [Wed, 17 Sep 2008 14:13:27 +0000 (23:13 +0900)]
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>
15 years agosh: Fix up fpu emu build.
Paul Mundt [Wed, 17 Sep 2008 14:12:11 +0000 (23:12 +0900)]
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>
15 years agosh: latencytop support.
Paul Mundt [Fri, 12 Sep 2008 16:44:03 +0000 (01:44 +0900)]
sh: latencytop support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Tidy up ELF core dumps.
Paul Mundt [Fri, 12 Sep 2008 14:27:46 +0000 (23:27 +0900)]
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>
15 years agosh: Check SR.DSP bit for DSP regset validity.
Paul Mundt [Fri, 12 Sep 2008 13:56:35 +0000 (22:56 +0900)]
sh: Check SR.DSP bit for DSP regset validity.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add missing task_user_regset_view() definition.
Paul Mundt [Fri, 12 Sep 2008 13:42:43 +0000 (22:42 +0900)]
sh: Add missing task_user_regset_view() definition.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add DSP registers to regset interface.
Paul Mundt [Fri, 12 Sep 2008 13:42:10 +0000 (22:42 +0900)]
sh: Add DSP registers to regset interface.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Fix up NUMA build error with se7722_defconfig.
Paul Mundt [Fri, 12 Sep 2008 13:41:30 +0000 (22:41 +0900)]
sh: Fix up NUMA build error with se7722_defconfig.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Enable HAVE_ARCH_TRACEHOOK.
Paul Mundt [Fri, 12 Sep 2008 13:13:36 +0000 (22:13 +0900)]
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>
15 years agosh: Provide the asm/syscall.h interface, needed by tracehook.
Paul Mundt [Fri, 12 Sep 2008 13:13:13 +0000 (22:13 +0900)]
sh: Provide the asm/syscall.h interface, needed by tracehook.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: provide user_stack_pointer(), needed for tracehook support.
Paul Mundt [Fri, 12 Sep 2008 13:11:36 +0000 (22:11 +0900)]
sh: provide user_stack_pointer(), needed for tracehook support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Flag T-bit for syscall restart.
Paul Mundt [Fri, 12 Sep 2008 13:08:20 +0000 (22:08 +0900)]
sh: Flag T-bit for syscall restart.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: ioremap_prot support.
Paul Mundt [Fri, 12 Sep 2008 11:41:05 +0000 (20:41 +0900)]
sh: ioremap_prot support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: ptrace: Introduce user_regset interface for gp regs.
Paul Mundt [Fri, 12 Sep 2008 10:52:36 +0000 (19:52 +0900)]
sh: ptrace: Introduce user_regset interface for gp regs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Provide a fixed UTS_MACHINE definition for sh64.
Paul Mundt [Fri, 12 Sep 2008 09:58:28 +0000 (18:58 +0900)]
sh: Provide a fixed UTS_MACHINE definition for sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: update edosk7760 defconfig for physmap-flash.
Luca Santini [Fri, 12 Sep 2008 09:08:01 +0000 (18:08 +0900)]
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>
15 years agosh: edosk7760 physmap-flash support.
Luca Santini [Fri, 12 Sep 2008 09:07:16 +0000 (18:07 +0900)]
sh: edosk7760 physmap-flash support.

Signed-off-by: Luca Santini <luca.santini@spesonline.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agortc-sh: Unsigned rtc->{periodic,carry,alarm}_irq cannot be negative
roel kluin [Wed, 10 Sep 2008 17:34:44 +0000 (19:34 +0200)]
rtc-sh: Unsigned rtc->{periodic,carry,alarm}_irq cannot be negative

possibly since commit b420b1a7a17ea88531d0e12b2f2679a0c8365803

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh_eth: unsigned ndev->irq cannot be negative
roel kluin [Wed, 10 Sep 2008 17:22:44 +0000 (19:22 +0200)]
sh_eth: unsigned ndev->irq cannot be negative

unsigned ndev->irq cannot be negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: intc_prio_data() test before subtraction on unsigned
roel kluin [Tue, 9 Sep 2008 21:02:43 +0000 (23:02 +0200)]
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>
15 years agosh: kprobes: kretprobe_trampoline needs to be global.
Paul Mundt [Mon, 8 Sep 2008 23:13:28 +0000 (08:13 +0900)]
sh: kprobes: kretprobe_trampoline needs to be global.

Needed by CONFIG_TRACING.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add R2D+ defconfig for qemu system emulator.
Paul Mundt [Mon, 8 Sep 2008 21:15:47 +0000 (06:15 +0900)]
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>
15 years agosh: Derive calibrate_delay lpj from clk fwk.
Paul Mundt [Mon, 8 Sep 2008 11:47:42 +0000 (20:47 +0900)]
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>
15 years agosh: kprobes: __kprobes annotations and formatting cleanups.
Paul Mundt [Mon, 8 Sep 2008 09:22:47 +0000 (18:22 +0900)]
sh: kprobes: __kprobes annotations and formatting cleanups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: kprobes: Fix up race against probe point removal.
Paul Mundt [Mon, 8 Sep 2008 09:15:55 +0000 (18:15 +0900)]
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>
15 years agosh: kprobes: Fix up a preemption imbalance on jprobe return.
Paul Mundt [Mon, 8 Sep 2008 09:14:50 +0000 (18:14 +0900)]
sh: kprobes: Fix up a preemption imbalance on jprobe return.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.
Paul Mundt [Mon, 8 Sep 2008 09:12:33 +0000 (18:12 +0900)]
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>
15 years agosh: kprobes: Use trapa #0x3a for breakpoint trap.
Paul Mundt [Mon, 8 Sep 2008 09:10:10 +0000 (18:10 +0900)]
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>
15 years agosh: kprobes: Hook up kprobe_fault_handler() in the page fault path.
Paul Mundt [Mon, 8 Sep 2008 03:22:47 +0000 (12:22 +0900)]
sh: kprobes: Hook up kprobe_fault_handler() in the page fault path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Disable seccomp support by default.
Paul Mundt [Mon, 8 Sep 2008 03:10:35 +0000 (12:10 +0900)]
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>
15 years agosh: Mark kretprobe_trampoline_holder static and __used.
Paul Mundt [Mon, 8 Sep 2008 03:02:17 +0000 (12:02 +0900)]
sh: Mark kretprobe_trampoline_holder static and __used.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add EDOSK7760 mach type.
Paul Mundt [Mon, 8 Sep 2008 03:01:55 +0000 (12:01 +0900)]
sh: Add EDOSK7760 mach type.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add Renesas EDOSK7760 board support.
Luca Santini [Mon, 8 Sep 2008 03:01:15 +0000 (12:01 +0900)]
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>
15 years agosh: Enable IRLM mode for SH7760 IRQ_MODE_IRQ.
Luca Santini [Mon, 8 Sep 2008 02:54:56 +0000 (11:54 +0900)]
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>
15 years agosh: uninline flush_icache_all().
Paul Mundt [Fri, 5 Sep 2008 09:00:29 +0000 (18:00 +0900)]
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>
15 years agosh: Add the rest of the boot targets to arch/sh/boot/.gitignore.
Paul Mundt [Fri, 5 Sep 2008 08:27:37 +0000 (17:27 +0900)]
sh: Add the rest of the boot targets to arch/sh/boot/.gitignore.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add kprobes support.
Chris Smith [Fri, 5 Sep 2008 08:15:39 +0000 (17:15 +0900)]
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>
15 years agosh: remove unnecessary memset after alloc_bootmem_low_pages
Marek Skuczynski [Fri, 5 Sep 2008 07:42:58 +0000 (16:42 +0900)]
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>
15 years agosh: fix the TMU code to allow a fully running NO_HZ system
Francesco Virlinzi [Fri, 5 Sep 2008 07:40:22 +0000 (16:40 +0900)]
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>
15 years agosh: Subnormal double to float conversion
Carl Shaw [Fri, 5 Sep 2008 07:36:19 +0000 (16:36 +0900)]
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>
15 years agosh: Fix an unusual memory initialisation error.
Stuart Menefy [Fri, 5 Sep 2008 07:29:40 +0000 (16:29 +0900)]
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>
15 years agosh: Fix uImage load address in 32-bit mode.
Chris Smith [Fri, 5 Sep 2008 07:24:13 +0000 (16:24 +0900)]
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>
15 years agosh: vmalloc pgtable sync fix.
Stuart Menefy [Fri, 5 Sep 2008 07:17:15 +0000 (16:17 +0900)]
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>
15 years agosh: Fix up broken 32-bit initrd support.
Stuart Menefy [Fri, 5 Sep 2008 07:14:17 +0000 (16:14 +0900)]
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>
15 years agosh: early cached_to_uncached initialization.
Stuart Menefy [Fri, 5 Sep 2008 07:06:42 +0000 (16:06 +0900)]
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>
15 years agosh: Add support for memory hot-remove.
Paul Mundt [Fri, 5 Sep 2008 06:39:12 +0000 (15:39 +0900)]
sh: Add support for memory hot-remove.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Don't enable clockevents broadcasting on UP SH-X3 builds.
Paul Mundt [Fri, 5 Sep 2008 06:36:39 +0000 (15:36 +0900)]
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>
15 years agosh: fixup many sparse errors.
Paul Mundt [Thu, 4 Sep 2008 09:53:58 +0000 (18:53 +0900)]
sh: fixup many sparse errors.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Display CPU information in show_regs().
Paul Mundt [Thu, 7 Aug 2008 16:23:34 +0000 (01:23 +0900)]
sh: Display CPU information in show_regs().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Early dummy clockevent registration on boot CPU.
Paul Mundt [Thu, 7 Aug 2008 16:18:48 +0000 (01:18 +0900)]
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>
15 years agosh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop.
Paul Mundt [Wed, 6 Aug 2008 09:39:32 +0000 (18:39 +0900)]
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>
15 years agosh: generic clockevent broadcast support.
Paul Mundt [Wed, 6 Aug 2008 09:37:07 +0000 (18:37 +0900)]
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>
15 years agosh: smp: Hook up a timer IPI stub.
Paul Mundt [Wed, 6 Aug 2008 09:21:03 +0000 (18:21 +0900)]
sh: smp: Hook up a timer IPI stub.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: smp: Hook in to the generic IPI handler for SH-X3 SMP.
Paul Mundt [Wed, 6 Aug 2008 09:05:09 +0000 (18:05 +0900)]
sh: smp: Hook in to the generic IPI handler for SH-X3 SMP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: smp: Provide a generic IPI handler.
Paul Mundt [Wed, 6 Aug 2008 09:02:48 +0000 (18:02 +0900)]
sh: smp: Provide a generic IPI handler.

This provides a generic smp_message_recv() routine (based on the PPC
one), that IPI IRQs can wrap in to.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>