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2011-01-05[S390] zcrypt: cope with cca restriction of cex3Felix Beck
The cca on the crypto adapter has a restriction in the size of the exponent if a key with a modulus bigger than 2048 bit is used. Thus in that case we have to avoid that the crypto device driver thinks the adapter is defect and sets it offline. Therfore a new member for the zcrypt_device struct called max_exp_bit_length is introduced. This will be set the first time the cca returns the error code function not implemented. If this is done with an adapter twice it will return -EINVAL. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] zcrypt: support for 4096 bit keys for cex3cFelix Beck
Definitions for CEX3 card types are changed to support 4096 bit RSA keys in the coprocessor. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] zcrypt: support for 4096 bit keys for cex3aFelix Beck
Definitions for CEX3 card types are changed to support 4096 bit RSA keys. Also new structs for the accelerator mode are needed. Additionaly when checking the length of key parts, the case for bigger (4096 bit) keys is needed. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] zcrypt: Introduce check for 4096 bit support.Felix Beck
Implemented an asm in the ap bus and made it accessible for the card specific parts of the zcrypt driver. Thus when a cex3a is recognized a check can be performed to dermine whether the card supports 4096 bit RSA keys. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] hypfs: Move buffer allocation from open to readMichael Holzheu
Currently the buffer for diagnose data is allocated in the open function of the debugfs file and is released in the close function. This has the drawback that a user (root) can pin that memory by not closing the file. This patch moves the buffer allocation to the read function. The buffer is automatically released after the buffer is copied to userspace. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] current_thread_info optimizationMartin Schwidefsky
Use thread_info lowcore field for current_thread_info(), saves an unnecessary calculation. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] extint: get rid of early code plus cleanupHeiko Carstens
Get rid of register/unregister_early_external_interrupt() and clean up the code while at it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] sclp: use register_external_interrupt()Heiko Carstens
Use register_external_interrupt() instead of register_early_external_interrupt(). The early variant is not necessary since kmalloc works already. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] pfault: delay register of pfault interruptHeiko Carstens
Use an early init call to initialize pfault. That way it is possible to use the register_external_interrupt() instead of the early variant. No need to enable pfault any earlier since it has only effect if user space processes are running. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] ap bus: add support for irq statisticsHolger Dengler
Add support for AP Bus I/O interrupt statistics in /proc/interrupts. Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] ctc: add support for irq statisticsHeiko Carstens
Add support for CTC I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] claw: add support for irq statisticsHeiko Carstens
Add support for CLAW I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] lcs: add support for irq statisticsHeiko Carstens
Add support for LCS I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] vmur: add support for irq statisticsHeiko Carstens
Add support for VMUR I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] tape: add support for irq statisticsHeiko Carstens
Add support for ccw based tape I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] 3270: add support for irq statisticsHeiko Carstens
Add support for 3270 I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] 3215: add support for irq statisticsHeiko Carstens
Add support for 3215 I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] dasd: add support for irq statisticsHeiko Carstens
Add support for DASD I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] qdio: add qdio interrupts to interrupt statisticsJan Glauber
Count traditional qdio interrupts and adapter interrupts for qdio in the interrupt statistics. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] irq: have detailed statistics for interrupt typesHeiko Carstens
Up to now /proc/interrupts only has statistics for external and i/o interrupts but doesn't split up them any further. This patch adds a line for every single interrupt source so that it is possible to easier tell what the machine is/was doing. Part of the output now looks like this; CPU0 CPU2 CPU4 EXT: 3898 4232 2305 I/O: 782 315 245 CLK: 1029 1964 727 [EXT] Clock Comparator IPI: 2868 2267 1577 [EXT] Signal Processor TMR: 0 0 0 [EXT] CPU Timer TAL: 0 0 0 [EXT] Timing Alert PFL: 0 0 0 [EXT] Pseudo Page Fault [...] NMI: 0 1 1 [NMI] Machine Checks Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] time: let local_tick_enable/disable() reprogram the clock comparatorHeiko Carstens
Let local_tick_enable/disable() reprogram the clock comparator so the function names make semantically more sense. Also that way the functions are more symmetric since normally each local_tick_enable() call usually would have a subsequent call to set_clock_comparator() anyway. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] time: move local_tick_enable()/disable() to timex.hHeiko Carstens
Move the two functions to timex.h where they make more sense than in hardirq.h. No functional change. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] add kprobes annotationsMartin Schwidefsky
Add kprobes annotations to get the massive 'probe kernel.function("*") {}' stress test working. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: coding styleMartin Schwidefsky
Correct some minor coding style issues. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: restructure handler functionMartin Schwidefsky
Restructure the kprobe breakpoint handler function. Add comments to make it more comprehensible and add a sanity check for re-entering kprobes. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: jprobe save and restoreMartin Schwidefsky
Register %r14 and %r15 are already stored in jprobe_saved_regs, no need to store them a second time in jprobe_saved_r14 / jprobe_saved_r15. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: insn slotsMartin Schwidefsky
The s390 architecture can execute code on kmalloc/vmalloc memory. No need for the __ARCH_WANT_KPROBES_INSN_SLOT detour. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: activation and deactivationMartin Schwidefsky
Replace set_current_kprobe/reset_current_kprobe/save_previous_kprobe/ restore_previous_kprobe with a simpler scheme push_kprobe/pop_kprobe. The mini kprobes stack can store up to two active kprobes. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: instruction fixupMartin Schwidefsky
Determine instruction fixup details in resume_execution, no need to do it beforehand. Remove fixup, ilen and reg from arch_specific_insn. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: instruction swapMartin Schwidefsky
Move the definition of the helper structure ins_replace_args to the only place where it is used and drop the old member as it is not needed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: single step cleanupMartin Schwidefsky
The saved interrupt mask and the saved control registers are only relevant while single stepping is set up. A secondary kprobe while kprobe single stepping is active may not occur. That makes is safe to remove the save and restore of kprobe_saved_imask / kprobe_save_ctl from save_previous_kprobe and restore_previous_kprobe. Move all single step related code to two functions, enable_singlestep and disable_singlestep. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: single stepped breakpointMartin Schwidefsky
Remove special case of a kprobe on a breakpoint while a relocated instruction is single stepped. The only instruction that may cause a fault while kprobe single stepping is active is the relocated instruction. There is no kprobe on the instruction slot retrieved with get_insn_slot(). Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] cleanup s390 KconfigMartin Schwidefsky
Make use of def_bool and def_tristate where possible and add sensible defaults to the config symbols where applicable. This shortens the defconfig file by another ~40 lines. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] zcrypt: Fix check to look for facility bits 2 & 65Felix Beck
Fix the check for ap interupts to look for facility bits 2 and 65. Make sure that we only register interrupts for aps, if the machine has ap interrupt support. This patch is relevant only for the 2.6.37 stable series. Cc: stable@kernel.org Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05ARM: vexpress: add sched_clock() for Versatile ExpressRussell King
Add a sched_clock() implementation to Versatile Express using the new sched_clock() infrastructure for extending 32bit counters to full 64-bit nanoseconds. Tested-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-05Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into ↵Russell King
devel-stable
2011-01-05Revert "fs: use RCU read side protection in d_validate"Nick Piggin
This reverts commit 3825bdb7ed920845961f32f364454bee5f469abb. You cannot dget() a dentry without having a reference, or holding a lock that guarantees it remains valid. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2011-01-05Merge branch 'common/fbdev-mipi' of ↵Paul Mundt
master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
2011-01-05Merge branches 'rmobile/mmcif', 'rmobile/ag5' and 'rmobile/mackerel' into ↵Paul Mundt
rmobile-latest Conflicts: arch/arm/mach-shmobile/Kconfig Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05fbdev: sh_mipi_dsi: use platform provided register layout and valuesGuennadi Liakhovetski
Different sh-mobile SoCs have variations in their MIPI DSI register layouts, besides, different LCD panels require different configuration parameters. This patch switches the driver to use platform-provided MIPI DSI parameters. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05ARM: mach-shmobile: specify sh7372 MIPI DSI register layoutGuennadi Liakhovetski
Prepare the ap4evb board for the MIPI DSI driver transition to support different register layouts. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05fbdev: sh_mipi_dsi: support different register layoutsGuennadi Liakhovetski
The register layout of the MIPI DSI unit on sh-mobile SoCs differ. Add platform parameters to support such variations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05ARM: mach-shmobile: improve MIPI DSI clock configurationGuennadi Liakhovetski
Now, that the MIPI DSI driver implements runtime PM, we don't need anymore to configure clocks statically in the platform code. This patch also adds a DSITX1 clock definition for sh7372 and attaches PHY clocks to respective devices. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05fbdev: sh-mobile: implement MIPI DSI runtime PM supportGuennadi Liakhovetski
On SH-Mobile platforms using runtime PM with the MIPI DSI driver switches the DSI Tx link clock on PM events. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05ARM: mach-shmobile: sh73a0: fix div4 tableTakashi YOSHII
sh73a0 has divisor[12] setting as 1/7 on FRQCRA. Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05ARM: mach-shmobile: ap4/mackerel: modify wrong comment out of USBKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05ARM: mach-shmobile: Mackerel VGA camera supportMagnus Damm
Add VGA camera support to the Mackerel board using soc_camera_platform. The VGA camera module is hooked up using the 8-bit CEU bus, and it is constantly bursting out frames in fixed video mode setting. The camera module does not allow any I2C control. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05sh: correct definitions to access stack pointersRoel Kluin
A definition like: #define regs_return_value(regs) ((regs)->regs[0]) called with regs_return_value(foo) will be preprocessed to: ((foo)->foo[0]) ^^^ So to fix this to ensure the preprocessor compiles such calls correctly. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-05mmc: sh_mmcif: make DMA support by the driver unconditionalGuennadi Liakhovetski
Simplify the driver by removing the possibility to build it without the DMA support and remove the respective Kconfig parameter. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-04sparc: update copyright in piggyback.cSam Ravnborg
Update copyright info in piggyback.c to include info from piggyback_64.c. Include my own copyright too. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Josip Rodin <joy@entuzijast.net> Cc: Jakub Jelinek <jakub@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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