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2008-10-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* 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 ...
2008-10-20kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCOREVivek Goyal
o elfcorehdr_addr is used by not only the code under CONFIG_PROC_VMCORE but also by the code which is not inside CONFIG_PROC_VMCORE. For example, is_kdump_kernel() is used by powerpc code to determine if kernel is booting after a panic then use previous kernel's TCE table. So even if CONFIG_PROC_VMCORE is not set in second kernel, one should be able to correctly determine that we are booting after a panic and setup calgary iommu accordingly. o So remove the assumption that elfcorehdr_addr is under CONFIG_PROC_VMCORE. o Move definition of elfcorehdr_addr to arch dependent crash files. (Unfortunately crash dump does not have an arch independent file otherwise that would have been the best place). o kexec.c is not the right place as one can Have CRASH_DUMP enabled in second kernel without KEXEC being enabled. o I don't see sh setup code parsing the command line for elfcorehdr_addr. I am wondering how does vmcore interface work on sh. Anyway, I am atleast defining elfcoredhr_addr so that compilation is not broken on sh. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Simon Horman <horms@verge.net.au> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.Paul Mundt
The pinmux management is tied in to this code, while it is presently only used by platforms that select GENERIC_GPIO. The asm/gpio.h definitions are not referenced when GENERIC_GPIO is disabled, resulting in a build failure for all of the platforms that don't select it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20sh: Move the CPU definition headers from asm/ to cpu/.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20sh: add dynamic crash base address supportMagnus Damm
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>
2008-10-20sh: Fix up some merge damage.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/kernel-parameters.txt arch/sh/include/asm/elf.h
2008-10-20Merge branch 'sh/gpiolib'Paul Mundt
2008-10-20Fix debugfs_create_dir's error checking method for arch/sh/kernel/Zhaolei
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>
2008-10-20sh: Add sh7720 pinmux codeMagnus Damm
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>
2008-10-20sh: Add sh7203 pinmux codeMagnus Damm
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>
2008-10-20sh: Add sh7723 pinmux codeMagnus Damm
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>
2008-10-20sh: Add sh7722 pinmux codeMagnus Damm
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>
2008-10-20sh: GPIO and pinmux base codeMagnus Damm
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>
2008-10-04sh: More I/O routine overhauling.Paul Mundt
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>
2008-10-01sh: 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>
2008-09-29sh: SH-5 clk fwk support.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>
2008-09-24sh: Force pending restarted system calls to return -EINTR.Paul Mundt
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: 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: 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>
2008-09-17sh: Fix up signal_64 conflicting handle_signal() definition.Paul Mundt
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: Flag T-bit for syscall restart.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>
2008-09-10sh: 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>
2008-09-08kernel/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>
2008-09-08sh: kprobes: Fix up a preemption imbalance on jprobe return.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.Paul Mundt
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>
2008-09-08sh: kprobes: Use trapa #0x3a for breakpoint trap.Paul Mundt
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>
2008-09-08sh: kprobes: Hook up kprobe_fault_handler() in the page fault path.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: Mark kretprobe_trampoline_holder static and __used.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: Enable IRLM mode for SH7760 IRQ_MODE_IRQ.Luca Santini
Follows the same setting as SH7750. Signed-off-by: Luca Santini <luca.santini@spesonline.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: Add kprobes support.Chris Smith
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>
2008-09-08sh: fix the TMU code to allow a fully running NO_HZ systemFrancesco Virlinzi
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>
2008-09-08sh: Subnormal double to float conversionCarl Shaw
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>
2008-09-08sh: Fix an unusual memory initialisation error.Stuart Menefy
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>
2008-09-08sh: Fix up broken 32-bit initrd support.Stuart Menefy
Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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