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2009-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds5-5/+0
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: oprofile: Thou shalt not call __exit functions from __init functions cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic cpumask: remove cpumask_t from core cpumask: convert rcutorture.c cpumask: use new cpumask_ functions in core code. cpumask: remove references to struct irqaction's mask field. cpumask: use mm_cpumask() wrapper: kernel/fork.c cpumask: use set_cpu_active in init/main.c cpumask: remove node_to_first_cpu cpumask: fix seq_bitmap_*() functions. cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL
2009-03-30V4L/DVB (10665): soc-camera: add data signal polarity flags to driversGuennadi Liakhovetski2-3/+5
All soc-camera camera and host drivers must specify supported data signal polarity, after all drivers are fixed, we'll add a suitable test to soc_camera_bus_param_compatible(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30cpumask: remove references to struct irqaction's mask field.Rusty Russell4-4/+0
Impact: cleanup It's unused, since about 1995. So remove all initialization of it in preparation for actually removing the field. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2009-03-30cpumask: remove node_to_first_cpuRusty Russell1-1/+0
Everyone defines it, and only one person uses it (arch/mips/sgi-ip27/ip27-nmi.c). So just open code it there. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-mips@linux-mips.org
2009-03-28i2c-algo-pca: Rework waiting for a free busWolfram Sang1-1/+1
Waiting for a free bus now accepts the timeout value in jiffies and does proper checking using time_before. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-03-26Merge branch 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds1-1/+1
* 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits) x86: disable __do_IRQ support sparseirq, powerpc/cell: fix unused variable warning in interrupt.c genirq: deprecate obsolete typedefs and defines genirq: deprecate __do_IRQ genirq: add doc to struct irqaction genirq: use kzalloc instead of explicit zero initialization genirq: make irqreturn_t an enum genirq: remove redundant if condition genirq: remove unused hw_irq_controller typedef irq: export remove_irq() and setup_irq() symbols irq: match remove_irq() args with setup_irq() irq: add remove_irq() for freeing of setup_irq() irqs genirq: assert that irq handlers are indeed running in hardirq context irq: name 'p' variables a bit better irq: further clean up the free_irq() code flow irq: refactor and clean up the free_irq() code flow irq: clean up manage.c irq: use GFP_KERNEL for action allocation in request_irq() kernel/irq: fix sparse warning: make symbol static irq: optimize init_kstat_irqs/init_copy_kstat_irqs ...
2009-03-26Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller111-1743/+10177
Conflicts: drivers/net/wimax/i2400m/usb-notif.c
2009-03-21sh: add support for SMSC Polaris platformSteve Glendinning5-0/+1127
Polaris is an SMSC reference platform with a SH7709S CPU and LAN9118 ethernet controller. This patch adds support for it. Updated following feedback from Nobuhiro Iwamatsu. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Reviewed-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-20sh: fix the HD64461 level-triggered interrupts handlingRafael Ignacio Zurita3-15/+17
Rework the hd64461 demuxer code to fix the HD64461 level-triggered interrupts handling, using handle_level_irq() as needed. Signed-off-by: Rafael Ignacio Zurita <rizurita@yahoo.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-20sh: disallow kexec virtual entryMagnus Damm1-1/+8
Older versions of kexec-tools has a zImage loader that passes a virtual address as entry point. The elf loader otoh it passes a physical address as entry point, and pages are always passed as physical addresses as well. Only allow physical addresses from now on. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18sh: kexec jump: fix for ftrace.Paul Mundt1-0/+6
Save and restore ftrace state when returning from kexec jump in machine_kexec(). Follows the x86 change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18sh: kexec: Drop SR.BL bit toggling.Paul Mundt1-4/+3
For the time being, this creates far more problems than it solves, evident by the second local_irq_disable(). Kill all of this off and rely on IRQ disabling to protect against the VBR reload. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18sh: add kexec jump supportMagnus Damm3-32/+202
Add kexec jump support to the SuperH architecture. Similar to the x86 implementation, with the following exceptions: - Instead of separating the assembly code flow into two parts for regular kexec and kexec jump we use a single code path. In the assembly snippet regular kexec is just kexec jump that never comes back. - Instead of using a swap page when moving data between pages the page copy assembly routine has been modified to exchange the data between the pages using registers. - We walk the page list twice in machine_kexec() to do and undo physical to virtual address conversion. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18sh: rework kexec segment codeMagnus Damm2-6/+17
Rework the kexec code to avoid using P2SEG. Instead we walk the page list in machine_kexec() and convert the addresses from physical to virtual using C. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-18sh: simplify kexec vbr codeMagnus Damm2-13/+8
Setup the vbr register in machine_kexec(). This instead of passing values to the assembly snippet. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: Flush only the needed range when unmapping a VMA.Paul Mundt1-8/+92
This follows the ARM change from Aaro Koskinen: When unmapping N pages (e.g. shared memory) the amount of TLB flushes done can be (N*PAGE_SIZE/ZAP_BLOCK_SIZE)*N although it should be N at maximum. With PREEMPT kernel ZAP_BLOCK_SIZE is 8 pages, so there is a noticeable performance penalty when unmapping a large VMA and the system is spending its time in flush_tlb_range(). The problem is that tlb_end_vma() is always flushing the full VMA range. The subrange that needs to be flushed can be calculated by tlb_remove_tlb_entry(). This approach was suggested by Hugh Dickins, and is also used by other arches. The speed increase is roughly 3x for 8M mappings and for larger mappings even more. Bits and peices are taken from the ARM patch as well as the existing arch/um implementation that is quite similar. The end result is a significant reduction in both partial and full TLB flushes initiated through flush_tlb_range(). At the same time, the nommu implementation was broken, had a superfluous cache flush, and subsequently would have triggered a BUG_ON() if a code-path had triggered it. Tidy this up for correctness and provide a nopped-out implementation there. More background on the initial discussion can be found at: http://marc.info/?t=123609820900002&r=1&w=2 http://marc.info/?t=123660375800003&r=1&w=2 Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: Update debugfs ASID dumping for 16-bit ASID support.Paul Mundt1-3/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: tlb-pteaex: Kill off legacy PTEA updates.Paul Mundt1-3/+0
While harmless, PTEA has different semantics on these parts, and is only used in extended TLB mode. Kill off the legacy support. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.Paul Mundt10-28/+148
This adds support for extended ASIDs (up to 16-bits) on newer SH-X3 cores that implement the PTAEX register and respective functionality. Presently only the 65nm SH7786 (90nm only supports legacy 8-bit ASIDs). The main change is in how the PTE is written out when loading the entry in to the TLB, as well as in how the TLB entry is selectively flushed. While SH-X2 extended mode splits out the memory-mapped U and I-TLB data arrays for extra bits, extended ASID mode splits out the address arrays. While we don't use the memory-mapped data array access, the address array accesses are necessary for selective TLB flushes, so these are implemented newly and replace the generic SH-4 implementation. With this, TLB flushes in switch_mm() are almost non-existent on newer parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdpNobuhiro Iwamatsu1-3/+7
IRQ for sh_eth of sh7763rdp became multi handling. Therefore, the IRQ number of sh_eth is changed, too. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: espt-giga board supportNobuhiro Iwamatsu5-0/+1301
This adds support for the ESPT-Giga (Ethernet Serial Parallel Translator) SH7763-based reference board. Board support is relatively sparse, presently supporting serial, gigabit ethernet, USB host, and MTD. More information (in Japanese) available at: http://www.cente.jp/product/cente_hard/ESPT-Giga.html Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: dma: Make G2 DMA configurable.Paul Mundt2-1/+12
Follow the PVR2 DMAC change for G2 DMA. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-17sh: dma: Make PVR2 DMA configurable.Paul Mundt2-1/+15
With arch/sh/drivers/dma/ always being built, the Dreamcast DMA engines are being unconditionally built in, regardless of whether the DMA API is enabled or not. This is a regression from previous behaviour, but there is not much advantage in building them all in unconditionally regardless. Add a new config option to make it optional, and update the only user of it to reflect that. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: Move IRQ multi definition of DMAC to defconfigNobuhiro Iwamatsu2-12/+13
When SuperH CPU has IRQ multi of DMAC, SH_DMA_IRQ_MULTI becomes enable. The following CPU's are Multi IRQ of DMAC now. - SH775X and SH7091 - SH776X - SH7780 - SH7785 If SH_DMA_IRQ_MULTI becomes enable, dma-sh api driver is optimized for Multi IRQ. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: clkfwk: Safer resume from hibernation.Francesco VIRLINZI1-1/+3
This patch fixes a possible problem in the resume from hibenration. It temporaneally saves the clk->rate on the stack to avoid any possible change during the clk->set_parent(..) call. Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: Consolidate SH-Mobile CPU code in arch/sh/kernel/cpu/shmobile/.Paul Mundt5-4/+7
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: add ap325 lcd power off supportMagnus Damm1-0/+11
Improve the ap325 board code to allow the lcd panel and backlight to be powered off. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: SuperH Mobile suspend supportMagnus Damm5-0/+231
This patch contains CONFIG_SUSPEND support to the SuperH architecture. If enabled, SuperH Mobile processors will register their suspend callbacks during boot. To suspend, use "echo mem > /sys/power/state". To allow wakeup, make sure "/sys/device/platform/../power/wakeup" contains "enabled". Additional per-device driver patches are most likely needed. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: Fix compile error by operands(mov.l) in sh3/entry.SNobuhiro Iwamatsu1-1/+1
-- log -- arch/sh/kernel/cpu/sh4/../sh3/entry.S:365: Error: invalid operands for opcode make[4]: *** [arch/sh/kernel/cpu/sh4/../sh3/entry.o] Error 1 make[3]: *** [arch/sh/kernel/cpu/sh4] Error 2 -- log -- Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: Disable get_dma_error_irq for non-SH4 targets.Nobuhiro Iwamatsu1-0/+2
dma-sh's get_dma_error_irq() is only used by SH4, as the SH3 doesn't have the DMA Error interrupt. Disable it out for non-SH4 builds. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: PMB hibernation supportFrancesco VIRLINZI1-0/+38
This implements preliminary suspend/resume support for the PMB. Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: Revert CONFIG_NR_ONCHIP_DMA_CHANNELS to MAX_DMA_CHANNELSNobuhiro Iwamatsu1-8/+9
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16sh: Add OHCI USB support for SH7786Kuninori Morimoto1-0/+83
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16Merge branches 'irq/genirq' and 'linus' into irq/coreIngo Molnar2-52/+6
2009-03-11sh: improve sh7785lcr power off codeMagnus Damm1-0/+3
Improve the sh7785lcr power off implementation to never return. It takes some time before the board is actually powered off, just hang after asking the harware to power down. This removes the serial port garbage printout. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11sh: clkfwk: Add resume from hibernation support.Francesco VIRLINZI1-0/+64
This patch adds PM support to the clock framework. With this, resume from hibernation is properly supported. Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11sh: clkfwk: add clk_set_parent/clk_get_parentFrancesco VIRLINZI2-0/+30
This patch adds the clk_set_parent/clk_get_parent routines to the sh clock framework. Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: dma-sh updates for multi IRQ and new SH-4A CPUs.Nobuhiro Iwamatsu9-204/+352
This adds DMA support for newer SH-4A CPUs, particularly SH7763/64/80/85. This also enables multi IRQ support for platforms that have multiple vectors bound to the same IRQ source. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: Generate uImage by default on Urquell board.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: Define ARCH_SHMOBILE for SH-Mobile CPUs.Paul Mundt1-0/+7
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: pci-sh7780: fix pci memory address for fixed PMBYoshihiro Shimoda1-2/+2
Fix the problem that cannot work a PCI device when 32-bit physical address mode. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: sh7785lcr: Updates for fixed PMB.Yoshihiro Shimoda3-2/+1563
Add a new defconfig for SH7785LCR in 32-bit mode, and update the power off code to avoid 29-bit assumptions. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: Support fixed 32-bit PMB mappings from bootloader.Yoshihiro Shimoda9-17/+104
This provides a method for supporting fixed PMB mappings inherited from the bootloader, as an alternative to the dynamic PMB mapping currently used by the kernel. In the future these methods will be combined. P1/P2 area is handled like a regular 29-bit physical address, and local bus device are assigned P3 area addresses. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: Show sleep state with Migo-R LEDsMagnus Damm1-0/+9
If CONFIG_PM is set, let Migo-R LEDs show sleep states. D11 will show STATUS0 and D12 PDSTATUS. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10Merge branch 'sh/stable-updates'Paul Mundt1-0/+1
2009-03-10sh: Add media/soc_camera.h to board setup of Renesas AP325RXANobuhiro Iwamatsu1-0/+1
Other compilation errors were revised by commit of "sh: ap325rxa: Revert ov772x support" (08c2f5b4d76f83213e379b12df504269d21c9e7c) but other compilation errors are given. We revert this commit and need to add new header(media/soc_camera.h). This change revises new compilation error. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Paul Mundt1-50/+3
2009-03-10sh: hibernation supportMagnus Damm9-5/+228
Add Suspend-to-disk / swsusp / CONFIG_HIBERNATION support to the SuperH architecture. To suspend, use "swapon /dev/sda2; echo disk > /sys/power/state" To resume, pass "resume=/dev/sda2" on the kernel command line. The patch "pm: rework includes, remove arch ifdefs V2" is needed to allow the generic swsusp code to build properly. Hibernation is not enabled with this patch though, a patch setting ARCH_HIBERNATION_POSSIBLE will be submitted later. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06sh: multiple vectors per irq - sh7720.Paul Mundt1-45/+23
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06sh: multiple vectors per irq - sh7710.Paul Mundt1-48/+21
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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