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* 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: kprobes: __kprobes annotations and formatting cleanups.Paul Mundt2008-09-08
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: kprobes: Fix up race against probe point removal.Paul Mundt2008-09-08
| | | | | | | 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>
* sh: kprobes: Fix up a preemption imbalance on jprobe return.Paul Mundt2008-09-08
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: kprobes: Default to NOTIFY_DONE for unhandled debug traps.Paul Mundt2008-09-08
| | | | | | | | | 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>
* sh: kprobes: Use trapa #0x3a for breakpoint trap.Paul Mundt2008-09-08
| | | | | | | 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>
* sh: kprobes: Hook up kprobe_fault_handler() in the page fault path.Paul Mundt2008-09-07
| | | | 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: Mark kretprobe_trampoline_holder static and __used.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add EDOSK7760 mach type.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add Renesas EDOSK7760 board support.Luca Santini2008-09-07
| | | | | | | | | | | | | | | 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>
* sh: Enable IRLM mode for SH7760 IRQ_MODE_IRQ.Luca Santini2008-09-07
| | | | | | | Follows the same setting as SH7750. Signed-off-by: Luca Santini <luca.santini@spesonline.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: uninline flush_icache_all().Paul Mundt2008-09-07
| | | | | | | | 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>
* sh: Add the rest of the boot targets to arch/sh/boot/.gitignore.Paul Mundt2008-09-07
| | | | 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: remove unnecessary memset after alloc_bootmem_low_pagesMarek Skuczynski2008-09-07
| | | | | | | | | | 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>
* sh: fix the TMU code to allow a fully running NO_HZ systemFrancesco Virlinzi2008-09-07
| | | | | | | 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>
* sh: Subnormal double to float conversionCarl Shaw2008-09-07
| | | | | | | | | 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>
* sh: Fix an unusual memory initialisation error.Stuart Menefy2008-09-07
| | | | | | | | | | | | | 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>
* sh: Fix uImage load address in 32-bit mode.Chris Smith2008-09-07
| | | | | | | 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>
* sh: vmalloc pgtable sync fix.Stuart Menefy2008-09-07
| | | | | | | | | | | | 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>
* sh: Fix up broken 32-bit initrd support.Stuart Menefy2008-09-07
| | | | | Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: early cached_to_uncached initialization.Stuart Menefy2008-09-07
| | | | | | | | 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>
* sh: Add support for memory hot-remove.Paul Mundt2008-09-07
| | | | 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: fixup many sparse errors.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Display CPU information in show_regs().Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Early dummy clockevent registration on boot CPU.Paul Mundt2008-09-07
| | | | | | | | 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>
* sh: smp: shove a cpu_relax() in the plat_start_cpu() busy loop.Paul Mundt2008-09-07
| | | | | | | Without this, certain versions of GCC will happily optimize the entire loop out. 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>
* sh: smp: Hook up a timer IPI stub.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: smp: Hook in to the generic IPI handler for SH-X3 SMP.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: smp: Provide a generic IPI handler.Paul Mundt2008-09-07
| | | | | | | 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>
* sh: Kill off unused defines from asm/smp.h.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Provide movli.l/movco.l-based cmpxchg.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Provide movli.l/movco.l-based bitops.Paul Mundt2008-09-07
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: resume_kernel fix for kernel oops built with CONFIG_BKL_PREEMPT=y.Paul Mundt2008-09-05
| | | | | | Follows the SH change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: resume_kernel fix for kernel oops built with CONFIG_BKL_PREEMPT=y.Carmelo Amoroso2008-09-05
| | | | | | | | | | | | | | | | This patch fixes a problem within the SH implementation of resume_kernel code, that implements in assembly the bulk of preempt_schedule_irq function without taking care of the extra code needed to handle the BKL preemptible. The patch basically consists of removing this asm code and calling the common C implementation (see kernel/sched.c) as other archs do. Another change is the missing 'cli' macro invocation at the beginning of the resume_kernel. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix semtimedop syscallYoshihiro Shimoda2008-08-28
| | | | | | | fix the problem that cannot work semtimedop system call. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: update AP325RXA defconfigMagnus Damm2008-08-28
| | | | | | | | This patch updates the AP325RXA defconfig to include the recently merged uio_pdrv_genirq driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: update Migo-R defconfigMagnus Damm2008-08-28
| | | | | | | | This patch updates the MigoR defconfig to include the recently merged uio_pdrv_genirq driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix platform_resource_setup_memory() section mismatchMagnus Damm2008-08-28
| | | | | | | This patch kills a section mismatch for platform_resource_setup_memory(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix kexec entry point for crash kernelsMagnus Damm2008-08-28
| | | | | | | | | | | The crash kernel entry point is currently checked by the kexec kernel code and only physical addresses in the reserved memory window are accepted. This means that we can't pass P2 or P1 addresses as entry points in the case of crash kernels. This patch makes sure we can start crash kernels by adding support for physical address entry points. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: crash kernel resource fixMagnus Damm2008-08-28
| | | | | | | | | The reserved crash kernel memory range is currently missing from /proc/iomem. crashk_res is mistakenly setup after __add_active_range(). Reorder things to make sure the resource shows up in /proc/iomem. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix ptrace_64.c:user_disable_single_step()Adrian Bunk2008-08-25
| | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following compile error caused by commit c459dbf294b4a3d70490a468a7ca3907fb2c2f57 (sh: ptrace single stepping cleanups.): <-- snip --> ... CC arch/sh/kernel/ptrace_64.o arch/sh/kernel/ptrace_64.c: In function 'user_disable_single_step': arch/sh/kernel/ptrace_64.c:134: error: 'regs' undeclared (first use in this function) arch/sh/kernel/ptrace_64.c:134: error: (Each undeclared identifier is reported only once arch/sh/kernel/ptrace_64.c:134: error: for each function it appears in.) ... make[2]: *** [arch/sh/kernel/ptrace_64.o] Error 1 <-- snip --> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh64: re-add the __strnlen_user() prototypeAdrian Bunk2008-08-25
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit 42fd3b142d8867f5b58d6fb75592cd20fd654c1b (sh: Initial consolidation of the _32/_64 uaccess split.) mistakenly removed the sh64 __strnlen_user() prototype, resulting in the following compile error: <-- snip --> ... CC init/main.o In file included from include/linux/poll.h:13, from include/linux/rtc.h:113, from include/linux/efi.h:19, from init/main.c:43: arch/sh/include/asm/uaccess.h: In function 'strnlen_user': arch/sh/include/asm/uaccess.h:213: error: implicit declaration of function '__strnlen_user' ... make[2]: *** [init/main.o] Error 1 <-- snip --> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'sh/for-2.6.27' of ↵Linus Torvalds2008-08-20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Provide a FLAT_PLAT_INIT() definition. binfmt_flat: Stub in a FLAT_PLAT_INIT(). video: export sh_mobile_lcdc panel size sh: select memchunk size using kernel cmdline sh: export sh7723 VEU as VEU2H input: migor_ts compile and detection fix sh: remove MSTPCR defines from Migo-R header file sh: Update sh7763rdp defconfig sh: Add support sh7760fb to sh7763rdp board sh: Add support sh_eth to sh7763rdp board sh: Disable 64kB hugetlbpage size when using 64kB PAGE_SIZE. sh: Don't export __{s,u}divsi3_i4i from SH-2 libgcc. fix SH7705_CACHE_32KB compilation sh: mach-x3proto: Fix up smc91x platform data.
| * sh: Provide a FLAT_PLAT_INIT() definition.Takashi YOSHII2008-08-11
| | | | | | | | | | | | | | | | | | | | SH needs this in order to make sure that r4 has a sane value at process entry time, which the libc expects has already been taken care of. Fixes random crashes in flat binaries. Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * video: export sh_mobile_lcdc panel sizeMagnus Damm2008-08-11
| | | | | | | | | | | | | | | | Export the LCD panel size for sh_mobile_lcdc boards. This allows us to perform dpi and screen aspect ratio calculations in user space. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: select memchunk size using kernel cmdlineMagnus Damm2008-08-11
| | | | | | | | | | | | | | | | | | | | | | | | Allow user to pass parameters on kernel command line to override default size for physically contiguous memory buffers. The default VPU buffer size is too small for VGA harware encoding, but instead of just bumping up the number we allow the user to override the default size using the command line. Supports SuperH Mobile hardware blocks such as VEU, VPU and CEU. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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