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2008-10-01sh: Move the shared INTC code out to drivers/sh/Paul Mundt
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>
2008-10-01sh: Use __raw_xxx() I/O accessors for INTC and IPR.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-01sh: Fix up the __raw_read/writeX() definitions.Paul Mundt
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>
2008-09-29sh: Use clk fwk for preset lpj on sh64, too.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29sh: SH-5 clk fwk support.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29sh: sh_ksyms_64 needs __strncpy_from_user() definition.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29sh: Fix up signal_64 cast warnings.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-29sh: Fix up uaccess_64 put/get_user() cast warnings.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-24sh: Force pending restarted system calls to return -EINTR.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-24sh: ap325rxa: create CPLD data area in mtdNobuhiro Iwamatsu
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>
2008-09-21sh: Add FPU registers to regset interface.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21sh: Add missing asm/ftrace.h.Paul Mundt
This was missed with the ftrace support commit.. check it in now. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21sh: ftrace support.Paul Mundt
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>
2008-09-21sh: Trivial trace_mark() instrumentation for core events.Paul Mundt
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>
2008-09-21sh: Kill off duplicate page fault notifiers in slow path.Paul Mundt
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>
2008-09-21sh: Look up the trap vector for the page fault notifier.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21sh: Move lookup_exception_vector() out to asm/system_32.h.Paul Mundt
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>
2008-09-21sh: edosk7760: Correct size of bootloader flash partition.Luca Santini
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>
2008-09-21sh: Add a few more definitions to asm/sizes.h.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21sh: Copy in asm/sizes.h helper from ARM.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-20sh: Support kernel stacks smaller than a page.Paul Mundt
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>
2008-09-20sh: Disable 4kB stacks when using PAGE_SIZE_64KB.Paul Mundt
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>
2008-09-17sh: HAVE_IOREMAP_PROT depends on MMU.Paul Mundt
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>
2008-09-17sh: Fix up headers_check regression.Paul Mundt
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>
2008-09-17sh: Consolidate struct sh_cpuinfo definitions across _32/_64 split.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17sh: Fix up signal_64 conflicting handle_signal() definition.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17sh: Make memory hot-add and hot-remove depend on MMU.Paul Mundt
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>
2008-09-17sh: Fix up fpu emu build.Paul Mundt
The addition of the kprobes code pushed down a variable declaration, clean it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-13sh: latencytop support.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Tidy up ELF core dumps.Paul Mundt
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>
2008-09-12sh: Check SR.DSP bit for DSP regset validity.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Add missing task_user_regset_view() definition.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Add DSP registers to regset interface.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Fix up NUMA build error with se7722_defconfig.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Enable HAVE_ARCH_TRACEHOOK.Paul Mundt
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>
2008-09-12sh: Provide the asm/syscall.h interface, needed by tracehook.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: provide user_stack_pointer(), needed for tracehook support.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Flag T-bit for syscall restart.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: ioremap_prot support.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: ptrace: Introduce user_regset interface for gp regs.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: Provide a fixed UTS_MACHINE definition for sh64.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: update edosk7760 defconfig for physmap-flash.Luca Santini
Signed-off-by: Luca Santini <luca.santini@spesonline.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-12sh: edosk7760 physmap-flash support.Luca Santini
Signed-off-by: Luca Santini <luca.santini@spesonline.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-10sh: intc_prio_data() test before subtraction on unsignedroel kluin
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>
2008-09-09sh: kprobes: kretprobe_trampoline needs to be global.Paul Mundt
Needed by CONFIG_TRACING. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-09sh: Add R2D+ defconfig for qemu system emulator.Paul Mundt
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>
2008-09-08kernel/cpu.c: create a CPU_STARTING cpu_chain notifierManfred Spraul
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>
2008-09-08sh: Derive calibrate_delay lpj from clk fwk.Paul Mundt
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>
2008-09-08sh: kprobes: __kprobes annotations and formatting cleanups.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: kprobes: Fix up race against probe point removal.Paul Mundt
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>
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