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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2009-04-05
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: sh7785lcr: Map whole PCI address space. sh: Fix up DSP context save/restore. sh: Fix up number of on-chip DMA channels on SH7091. sh: update defconfigs. sh: Kill off broken direct-mapped cache mode. sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle. sh: Add a command line option for disabling I/O trapping. sh: Select ARCH_HIBERNATION_POSSIBLE. sh: migor: Fix up CEU use flags. input: migor_ts: add wakeup support rtc: rtc-sh: use set_irq_wake() input: sh_keysc: use enable/disable_irq_wake() sh: intc: set_irq_wake() support sh: intc: install enable, disable and shutdown callbacks clocksource: sh_cmt: use remove_irq() and remove clockevent workaround sh: ap325 and Migo-R use new sh_mobile_ceu_info flags sh: Fix up -Wformat-security whining. sh: ap325rxa: Add ov772x support, again. sh: Sanitize asm/mmu.h for assembly use. sh: Tidy up sh7786 pinmux table. ...
| * sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle.Paul Mundt2009-04-02
| | | | | | | | | | | | | | | | cpuidle wants ARCH_HAS_DEFAULT_IDLE defined in order to use the default idle loop. So, make it accessible and enable it for all sh machines. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Select ARCH_HIBERNATION_POSSIBLE.Paul Mundt2009-04-01
| | | | | | | | | | | | | | Now that the requisite patches have gone in, this can safely be enabled across the board for all of the 32-bit SH platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add MMU dependency for kexecNobuhiro Iwamatsu2009-03-30
| | | | | | | | | | | | | | | | Kexec is not likely to work on NON-MMU CPU because this added depend on MMU for kexec. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | trivial: fix typos/grammar errors in Kconfig textsMatt LaPlante2009-03-30
|/ | | | | | Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* sh: add kexec jump supportMagnus Damm2009-03-18
| | | | | | | | | | | | | | | | | | | | | | Add kexec jump support to the SuperH architecture. Similar to the x86 implementation, with the following exceptions: - Instead of separating the assembly code flow into two parts for regular kexec and kexec jump we use a single code path. In the assembly snippet regular kexec is just kexec jump that never comes back. - Instead of using a swap page when moving data between pages the page copy assembly routine has been modified to exchange the data between the pages using registers. - We walk the page list twice in machine_kexec() to do and undo physical to virtual address conversion. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.Paul Mundt2009-03-17
| | | | | | | | | | | | | | | | | | | | This adds support for extended ASIDs (up to 16-bits) on newer SH-X3 cores that implement the PTAEX register and respective functionality. Presently only the 65nm SH7786 (90nm only supports legacy 8-bit ASIDs). The main change is in how the PTE is written out when loading the entry in to the TLB, as well as in how the TLB entry is selectively flushed. While SH-X2 extended mode splits out the memory-mapped U and I-TLB data arrays for extra bits, extended ASID mode splits out the address arrays. While we don't use the memory-mapped data array access, the address array accesses are necessary for selective TLB flushes, so these are implemented newly and replace the generic SH-4 implementation. With this, TLB flushes in switch_mm() are almost non-existent on newer parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SuperH Mobile suspend supportMagnus Damm2009-03-16
| | | | | | | | | | | | | | This patch contains CONFIG_SUSPEND support to the SuperH architecture. If enabled, SuperH Mobile processors will register their suspend callbacks during boot. To suspend, use "echo mem > /sys/power/state". To allow wakeup, make sure "/sys/device/platform/../power/wakeup" contains "enabled". Additional per-device driver patches are most likely needed. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Define ARCH_SHMOBILE for SH-Mobile CPUs.Paul Mundt2009-03-10
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Set a sensible default for the SH7786 pclk.Paul Mundt2009-03-05
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SH7786 is an SH-X3 core, select CPU_SHX3.Paul Mundt2009-03-03
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add support for SH7786 CPU subtype.Kuninori Morimoto2009-03-03
| | | | | | | | | | | | | | This adds preliminary support for the SH7786 CPU subtype. While this is a dual-core CPU, only UP is supported for now. L2 cache support is likewise not yet implemented. More information on this particular CPU subtype is available at: http://www.renesas.com/fmwk.jsp?cnt=sh7786_root.jsp&fp=/products/mpumcu/superh_family/sh7780_series/sh7786_group/ Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Restrict old CMT timer code to SH-2/SH-2A.Paul Mundt2009-02-04
| | | | | | | None of the other platforms use this, and need individual porting. Restrict it back to the supported set of CPU subtypes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Don't enable GENERIC_TIME for the CMT clockevent driver yet.Paul Mundt2009-01-29
| | | | | | | | | GENERIC_TIME still depends on the clocksource bits being there, which is presently not supported. This allows the CMT clockevent driver to be used alongside alternate system timers that do not yet provide a clocksource of their own (MTU2 and so on in the case of SH-2A). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix up MTU2 support for SH7203.Paul Mundt2009-01-29
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use SYS_SUPPORTS_CMT for managing CMT timer dependencies.Paul Mundt2009-01-29
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: CMT clockevent platform driverMagnus Damm2009-01-29
| | | | | | | | | | | | | | | | | SuperH CMT clockevent driver. Both 16-bit and 32-bit CMT versions are supported, but only 32-bit is tested. This driver contains support for both clockevents and clocksources, but no unregistration is supported at this point. Works fine as clock source and/or event in periodic or oneshot mode. Tested on sh7722 and sh7723, but should work with any cpu/architecture. This version is lacking clocksource and early platform driver support for now - this to minimize the amount of dependencies. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: mach-highlander and mach-rsk require gpiolib.Paul Mundt2009-01-27
| | | | | | | | | | Fix up the build for mach-highlander and mach-rsk. These operated on the assumption that GENERIC_GPIO support with an optional GPIOLIB was possible. This used to be true, but has not been the case since commit-id d56cc8bc661ac1ceded8d45ba2d53bb134fee17d ("sh: use gpiolib"), where the GENERIC_GPIO implementation was rewritten to use GPIOLIB directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: use gpiolibMagnus Damm2009-01-27
| | | | | | | | | | This patch updates the SuperH gpio code to make use of gpiolib. The gpiolib callbacks get() and set() are lockless, but we use our own spinlock for the other operations to make sure hardware register bitfield accesses stay atomic. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off obsolete busses from arch/sh/Kconfig.Paul Mundt2009-01-21
| | | | | | | | | | | | ISA can go away now that the hd6446x PCMCIA drivers no longer exist in-tree. The rationale for enabling CONFIG_ISA in the first place is likewise no longer valid given that the subsystem has changed since the time that assertion was valid. While we are at it, kill off SBUS, MCA, EISA, and so on. These are not supported and never will be. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: dma: Kill off ISA DMA wrapper.Paul Mundt2008-12-22
| | | | | | | There are no more users for this code, and it has been deprecated for some time, so just kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* doc: Update sh cpufreq documentation.Paul Mundt2008-12-22
| | | | | | | The sh cpufreq driver is no longer limited to just the SH-3 and SH-4, update the documentation to reflect this fact accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off cf-enabler with extreme prejudice.Paul Mundt2008-12-22
| | | | | | | | | | | | | | | Now that the rest of the boards that were using cf-enabler "generically" have switched to setting up their mappings on their own, only the mach-se boards were left using it. All of the cf-enabler using mach-se boards use a special initialization of the MRSHPC windows rather than going through the special PTE as other SH-4 platforms do. This consolidates the MRSHPC setup logic, hooks it up on the boards that care, and gets rid of any and all remaining references to cf-enabler. This has been long overdue, as cf-enabler has been the bane of arch/sh/kernel for the last 7 years. Good riddance. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: mach-sh03: Move off of cf_enabler to pata_platform, as per landisk.Paul Mundt2008-12-22
| | | | | | | | This gets rid of the cf enabler use on mach-sh03 and switches to use pata_platform with the proper address directly. cf_enabler is subsequently disabled for mach-sh03. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all SuperH machinesMatt Fleming2008-12-22
| | | | | | | | | After the recent changes to switch SuperH board support over to irq_chip it is now possible to set GENERIC_HARDIRQS_NO__DO_IRQ for all SuperH boards. Signed-off-by: Matt Fleming <mjf@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Generic kgdb stub support.Paul Mundt2008-12-22
| | | | | | | | This migrates from the old bitrotted kgdb stub implementation and moves to the generic stub. In the process support for SH-2/SH-2A is also added, which the old stub never provided. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Enable HAVE_ARCH_TRACEHOOK for all SH, now that SH-5 supports it too.Paul Mundt2008-12-22
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: allow CONFIG_CPU_IDLEMagnus Damm2008-12-22
| | | | | | | Allow users to select CONFIG_CPU_IDLE regardless of processor type or board. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: allow CONFIG_PMMagnus Damm2008-12-22
| | | | | | | | Allow users to select CONFIG_PM regardless of processor type or board. Suspend and hibernation are only allowed on supported platforms. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add support for SH7201 CPU subtype.Peter Griffin2008-12-22
| | | | | | | This patch adds support for the SH-2A FPU based SH7201 processor subtype. Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: dynamic ftrace support.Matt Fleming2008-12-22
| | | | | | | First cut at dynamic ftrace support. Signed-off-by: Matt Fleming <mjf@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Disable GENERIC_HARDIRQS_NO__DO_IRQ for unconverted platforms.Paul Mundt2008-12-16
| | | | | | | Presently limited to Cayman, Dreamcast, Microdev, and SystemH 7751. Re-enable it for everyone once these have been fixed up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: FTRACE renamed to FUNCTION_TRACER.Paul Mundt2008-10-31
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2008-10-20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (112 commits) sh: Move SH-4 CPU headers down one more level. sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected. sh: Migrate common board headers to mach-common/. sh: Move the CPU definition headers from asm/ to cpu/. serial: sh-sci: Add support SCIF of SH7723 video: add sh_mobile_lcdc platform flags video: remove unused sh_mobile_lcdc platform data sh: remove consistent alloc cruft sh: add dynamic crash base address support sh: reduce Migo-R smc91x overruns sh: Fix up some merge damage. Fix debugfs_create_file's error checking method for arch/sh/mm/ Fix debugfs_create_dir's error checking method for arch/sh/kernel/ sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board sh: Use sh7720 GPIO on magicpanelr2 board sh: Add sh7720 pinmux code sh: Use sh7203 GPIO on rsk7203 board sh: Add sh7203 pinmux code sh: Use sh7723 GPIO on AP325RXA board sh: Add sh7723 pinmux code ...
| * sh: GPIO and pinmux base codeMagnus Damm2008-10-19
| | | | | | | | | | | | | | | | 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>
| * sh: Use clk fwk for preset lpj on sh64, too.Paul Mundt2008-09-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add FPU registers to regset interface.Paul Mundt2008-09-21
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: ftrace support.Paul Mundt2008-09-21
| | | | | | | | | | | | | | 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>
| * sh: HAVE_IOREMAP_PROT depends on MMU.Paul Mundt2008-09-17
| | | | | | | | | | | | | | | | | | 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>
| * sh: latencytop support.Paul Mundt2008-09-12
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add DSP registers to regset interface.Paul Mundt2008-09-12
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Enable HAVE_ARCH_TRACEHOOK.Paul Mundt2008-09-12
| | | | | | | | | | | | | | 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>
| * sh: ioremap_prot support.Paul Mundt2008-09-12
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Derive calibrate_delay lpj from clk fwk.Paul Mundt2008-09-08
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * sh: Disable seccomp support by default.Paul Mundt2008-09-07
| | | | | | | | | | | | | | 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>
| * sh: Add kprobes support.Chris Smith2008-09-07
| | | | | | | | | | | | | | | | | | 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>
| * sh: Don't enable clockevents broadcasting on UP SH-X3 builds.Paul Mundt2008-09-07
| | | | | | | | | | | | | | 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>
| * sh: generic clockevent broadcast support.Paul Mundt2008-09-07
| | | | | | | | | | | | | | | | 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>
* | container freezer: implement freezer cgroup subsystemMatt Helsley2008-10-20
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a new freezer subsystem in the control groups framework. It provides a way to stop and resume execution of all tasks in a cgroup by writing in the cgroup filesystem. The freezer subsystem in the container filesystem defines a file named freezer.state. Writing "FROZEN" to the state file will freeze all tasks in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in the cgroup. Reading will return the current state. * Examples of usage : # mkdir /containers/freezer # mount -t cgroup -ofreezer freezer /containers # mkdir /containers/0 # echo $some_pid > /containers/0/tasks to get status of the freezer subsystem : # cat /containers/0/freezer.state RUNNING to freeze all tasks in the container : # echo FROZEN > /containers/0/freezer.state # cat /containers/0/freezer.state FREEZING # cat /containers/0/freezer.state FROZEN to unfreeze all tasks in the container : # echo RUNNING > /containers/0/freezer.state # cat /containers/0/freezer.state RUNNING This is the basic mechanism which should do the right thing for user space task in a simple scenario. It's important to note that freezing can be incomplete. In that case we return EBUSY. This means that some tasks in the cgroup are busy doing something that prevents us from completely freezing the cgroup at this time. After EBUSY, the cgroup will remain partially frozen -- reflected by freezer.state reporting "FREEZING" when read. The state will remain "FREEZING" until one of these things happens: 1) Userspace cancels the freezing operation by writing "RUNNING" to the freezer.state file 2) Userspace retries the freezing operation by writing "FROZEN" to the freezer.state file (writing "FREEZING" is not legal and returns EIO) 3) The tasks that blocked the cgroup from entering the "FROZEN" state disappear from the cgroup's set of tasks. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: export thaw_process] Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Tested-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: Kill off ARCH_SUPPORTS_AOUT and remnants of a.out support.Paul Mundt2008-08-04
| | | | | | | | SH never really supported a.out, so this was all just copied over blindly from x86 way back when. As we don't reference linux/a.out.h anywhere in the tree, these can now safely be killed off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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