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* sh: Only use bl bit toggling for sleeping idle.Paul Mundt2009-12-20
| | | | | | | We don't actually require this in the cpu_relax() polling case, so just cuddle these around the sleeping version. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Restore bl bit toggling in idle loop.Paul Mundt2009-12-20
| | | | | | | This fixes up some crashes with IRQs racing the need_resched() test under QEMU. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: dmaengine support for SH7785Nobuhiro Iwamatsu2009-12-17
| | | | | | | Add dmaengine platform device to SH7785. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: dmaengine support for sh7724.Guennadi Liakhovetski2009-12-17
| | | | | | | | Add a dmaengine platform device to sh7724, fix DMA channel interrupt numbers. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2009-12-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (33 commits) sh: Fix test of unsigned in se7722_irq_demux() sh: mach-ecovec24: Add FSI sound support sh: mach-ecovec24: Add mt9t112 camera support sh: mach-ecovec24: Add tw9910 support sh: MSIOF/mmc_spi platform data for the Ecovec24 board sh: ms7724se: Add ak4642 support sh: Fix up FPU build for SH5 sh: Remove old early serial console code V2 sh: sh5 scif pdata (sh5-101/sh5-103) sh: sh4a scif pdata (sh7757/sh7763/sh7770/sh7780/sh7785/sh7786/x3) sh: sh4a scif pdata (sh7343/sh7366/sh7722/sh7723/sh7724) sh: sh4 scif pdata (sh7750/sh7760/sh4-202) sh: sh3 scif pdata (sh7705/sh770x/sh7710/sh7720) sh: sh2a scif pdata (sh7201/sh7203/sh7206/mxg) sh: sh2 scif pdata (sh7616) sh-sci: Extend sh-sci driver with early console V2 sh: Stub in P3 ioremap support for nommu parts. sh: wire up vmallocinfo support in ioremap() implementations. sh: Make the unaligned trap handler always obey notification levels. sh: Couple kernel and user write page perm bits for CONFIG_X2TLB ...
| * Merge branch 'master' of ↵Paul Mundt2009-12-14
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | sh: Fix up FPU build for SH5Matt Fleming2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | After the recent FPU optimisation commit the signature of save_fpu() changed. "regs" wasn't used in the implementation of save_fpu() anyway. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Remove old early serial console code V2Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now when the sh-sci driver can do early serial output, get rid of the old duplicated code. This patch is V2 and removes support for "earlyprintk=serial" together with the following kconfig options: CONFIG_EARLY_SCIF_CONSOLE CONFIG_EARLY_SCIF_CONSOLE_PORT CONFIG_EARLY_PRINTK With this patch applied "earlyprintk=" support is always built-in the SuperH kernel. For this to work the serial driver must have early platform support and in the case of sh-sci the serial console needs to be enabled: CONFIG_SERIAL_SH_SCI_CONSOLE=y So after enabling the SuperH SCI console kconfig option you also need to point out port using the kernel command line: "earlyprintk=sh-sci.N[,baudrate][,keep]" Remember that clocks may be disabled by the boot loader so you may have to do some board specific static clock setup before earlyprintk will work on your platform. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh5 scif pdata (sh5-101/sh5-103)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh5 scif serial port platform data from a shared platform device to one platform device per port. Also, move the serial port to the list of early platform devices. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh4a scif pdata (sh7757/sh7763/sh7770/sh7780/sh7785/sh7786/x3)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh4a scif serial port platform data from a shared platform device to one platform device per port. Also, add serial ports to the list of early platform devices. All sh4a except SuperH Mobile processors are modified by this patch. While at it, sh7757 gets early platform device support. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh4a scif pdata (sh7343/sh7366/sh7722/sh7723/sh7724)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh4a scif serial port platform data from a shared platform device to one platform device per port. Also, add serial ports to the list of early platform devices. Only sh4a SuperH Mobile processors are modified by this patch. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh4 scif pdata (sh7750/sh7760/sh4-202)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh4 scif serial port platform data from a shared platform device to one platform device per port. Also, add serial ports to the list of early platform devices. While at it, get rid of the R2D ifdef in the processor code and adjust the defconfigs to use ttySC1. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh3 scif pdata (sh7705/sh770x/sh7710/sh7720)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh3 scif serial port platform data from a shared platform device to one platform device per port. Also, add serial ports to the list of early platform devices. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh2a scif pdata (sh7201/sh7203/sh7206/mxg)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh2a scif serial port platform data from a shared platform device to one platform device per port. Also, add serial ports to the list of early platform devices. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: sh2 scif pdata (sh7616)Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch breaks out the sh2 scif serial port platform data from a shared platform device to one platform device per port. Also, add serial ports to the list of early platform devices. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh-sci: Extend sh-sci driver with early console V2Magnus Damm2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is V2 of early serial console support for the sh-sci driver. The early serial console is using early platform devices and "earlyprintk". To use this feature the early platform devices must be broken out to one device per port and the desired port should be selected on the kernel command line like: "earlyprintk=sh-sci.N[,baudrate][,keep]" Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Make the unaligned trap handler always obey notification levels.Paul Mundt2009-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Presently there are a couple of paths in to the alignment handler, where only the address error path presently quiets the notificiation messages based on the configuration settings. We carry over the notification level tests to the default alignment handler itself incase so that they behave uniformly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Wire up recvmmsg syscall.Paul Mundt2009-12-11
| | | | | | | | | | | | | | | | | | | | | The stub already existed in the _64 syscall table, but was lacking a __NR_recvmmsg definition, while it was absent entirely for _32 variants. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: ftrace: Fix up syscall tracing build.Paul Mundt2009-12-11
| | | | | | | | | | | | | | | | | | Syscall tracing metadata was shuffled around, update accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into ↵Paul Mundt2009-12-10
| |\ \ | | | | | | | | | | | | sh/for-2.6.33
| * | | sh: Replace an explicit computation by the use of the container_of macroNicolas Palix2009-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The macro container_of from kernel.h performs the same pointer arithmetic operation. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; expression mptr; expression member; @@ - (void *)((char *)mptr - offsetof(T, member)) + container_of(mptr, T, member) // </smpl> Signed-off-by: Nicolas Palix <npalix@diku.dk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | genirq: Convert irq_desc.lock to raw_spinlockThomas Gleixner2009-12-14
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | Convert locks which cannot be sleeping locks in preempt-rt to raw_spinlocks. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Ingo Molnar <mingo@elte.hu>
* | | Unify sys_mmap*Al Viro2009-12-11
| |/ |/| | | | | | | | | | | New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2009-12-09
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (137 commits) sh: include empty zero page in romImage sh: Make associative cache writes fatal on all SH-4A parts. sh: Drop associative writes for SH-4 cache flushes. sh: Partial revert of copy/clear_user_highpage() optimizations. sh: Add default uImage rule for se7724, ap325rxa, and migor. sh: allow runtime pm without suspend/resume callbacks sh: mach-ecovec24: Remove un-defined settings for VPU sh: mach-ecovec24: LCDC drive ability become high sh: fix sh7724 VEU3F resource size serial: sh-sci: Fix too early port disabling. sh: pfc: pr_info() -> pr_debug() cleanups. sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines. sh: Improve kfr2r09 serial port setup code sh: Break out SuperH PFC code sh: Move KEYSC header file sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file sh: Add CPG save/restore code for sh7724 R-standby sh: Add SDHI power control support to Ecovec mfd: Add power control platform data to SDHI driver sh: mach-ecovec24: modify address map ...
| * sh: Make associative cache writes fatal on all SH-4A parts.Paul Mundt2009-12-04
| | | | | | | | | | | | | | | | | | Now that associative cache writes are no longer needed by the SH-4/SH-4A cache flush code, associative write support can be explicitly disabled for all SH-4A parts. This makes any associative write throw an exception, as this behaviour can not be assumed to exist on future parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: allow runtime pm without suspend/resume callbacksMagnus Damm2009-12-03
| | | | | | | | | | | | | | | | | | This patch updates the Runtime PM code for SuperH Mobile to allow drivers to have NULL as pm or callback value. With this in place there is no need for no-op functions. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: fix sh7724 VEU3F resource sizeMagnus Damm2009-12-03
| | | | | | | | | | | | | | Fix one-off VEU3F size error for sh7724. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Break out SuperH PFC codeMagnus Damm2009-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | This file breaks out the SuperH PFC code from arch/sh/kernel/gpio.c + arch/sh/include/asm/gpio.h to drivers/sh/pfc.c + include/linux/sh_pfc.h. Similar to the INTC stuff. The non-SuperH specific file location makes it possible to share the code between multiple architectures. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_fileAlexey Dobriyan2009-11-29
| | | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add CPG save/restore code for sh7724 R-standbyMagnus Damm2009-11-29
| | | | | | | | | | | | | | | | | | Add sh7724 code to save and restore CPG state during R-standby. Only CPG registers IRDACLKCR and SPUCLKCR require software save and restore. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix up the FPU emulation build.Paul Mundt2009-11-24
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Apply the sleazy FPU changes for SH-2A FPU as well.Paul Mundt2009-11-24
| | | | | | | | | | | | This plugs in the fpu_counter manipulation for the SH-2A side also. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Minor optimisations to FPU handlingStuart Menefy2009-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A number of small optimisations to FPU handling, in particular: - move the task USEDFPU flag from the thread_info flags field (which is accessed asynchronously to the thread) to a new status field, which is only accessed by the thread itself. This allows locking to be removed in most cases, or can be reduced to a preempt_lock(). This mimics the i386 behaviour. - move the modification of regs->sr and thread_info->status flags out of save_fpu() to __unlazy_fpu(). This gives the compiler a better chance to optimise things, as well as making save_fpu() symmetrical with restore_fpu() and init_fpu(). - implement prepare_to_copy(), so that when creating a thread, we can unlazy the FPU prior to copying the thread data structures. Also make sure that the FPU is disabled while in the kernel, in particular while booting, and for newly created kernel threads, In a very artificial benchmark, the execution time for 2500000 context switches was reduced from 50 to 45 seconds. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * Merge branch 'master' into sh/st-integrationPaul Mundt2009-11-24
| |\
| | * Merge branch 'sh/stable-updates'Paul Mundt2009-11-17
| | |\
| | * | sh64: Fix up the CONFIG_GENERIC_BUG=n build.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | sh64 doesn't use GENERIC_BUG, which presently causes the handle_BUG() code to blow up. Fix up the dependencies and get it all building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | sh: Use the generic I/O port base for slowdown.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes up the build and behaviour for various configurations. Namely the CONFIG_32BIT cases where legacy mappings do not exist, as well as the sh64 build. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | sh: Fix up the CONFIG_PERF_EVENTS=n build for SH-4.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | sh: perf events: Document SH-4A raw event codes.Paul Mundt2009-11-09
| | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | Merge branch 'sh/stable-updates'Paul Mundt2009-11-08
| | |\ \
| | * | | sh: perf events: Add support for SH7750-style counters.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds perf events support for the SH7750/SH7750S/SH7091 performance counters. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: perf events: Preliminary callchain support.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements preliminary support for perf callchains (at the moment only the kernel side is implemented). The actual implementation itself is just a simple wrapper around the unwinder API, which allows for callchain generation with or without the dwarf unwinder. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: Default-enable SPU clock for SH7724.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wanted by the SPU2 UIO driver, which really ought to be handling this itself. Default enable it for now, until the driver gets a bit more intelligent. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: sh7724: Add SPU2 supportKuninori Morimoto2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: perf events: Fix up uninitialized variable warning.Paul Mundt2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'config' can be unintialized, and although it's not really an error, it still manages to trigger the -Werror with certain toolchains. Initialize it early to shut up gcc. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: Add RWDT save/restore code for sh7724 R-standbyMagnus Damm2009-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add sh7724 code to save and restore RWDT state during R-standby. Without this patch the watchdog will generate a reset shortly after resuming from R-standby. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: intc: Handle legacy IRQ reservation in vector map.Paul Mundt2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Different CPUs will have different starting vectors, with varying amounts of reserved or unusable vector space prior to the first slot. This introduces a legacy vector reservation system that inserts itself in between the CPU vector map registration and the platform specific IRQ setup. This works fine in practice as the only new vectors that boards need to establish on their own should be dynamically allocated rather than arbitrarily assigned. As a plus, this also makes all of the converted platforms sparseirq ready. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: Add R-standby sleep mode supportMagnus Damm2009-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add R-standby specific bits to the SuperH Mobile sleep code. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: Use RSMEM for sleep code on sh7724Magnus Damm2009-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use RSMEM instead of ILMEM for sleep mode code storage on SH7724. This allows us to use R-standby mode on SH7724. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | sh: Add MMU and Cache handling sleep mode codeMagnus Damm2009-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add MMU and cache handling functionality to the SuperH Mobile sleep code. The MMU and cache registers are saved and restored. The MMU is disabled and the cache is flushed and disabled before entering sleep modes if the SUSP_SH_MMU flag is set. This flag should be set in the case of R-standby and most likely for future U-standby support as well. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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