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* powerpc: Remove platforms/wsp and associated piecesMichael Ellerman2014-06-111-1/+0
| | | | | | | | | | | | | __attribute__ ((unused)) WSP is the last user of CONFIG_PPC_A2, so we remove that as well. Although CONFIG_PPC_ICSWX still exists, it's no longer selectable for any Book3E platform, so we can remove the code in mmu-book3e.h that depended on it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Better split CONFIG_PPC_INDIRECT_PIO and CONFIG_PPC_INDIRECT_MMIOBenjamin Herrenschmidt2013-08-141-6/+1
| | | | | | | | Remove the generic PPC_INDIRECT_IO and ensure we only add overhead to the right accessors. IE. If only CONFIG_PPC_INDIRECT_PIO is set, we don't add overhead to all MMIO accessors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'next' of ↵Linus Torvalds2013-07-041-0/+26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc updates from Ben Herrenschmidt: "This is the powerpc changes for the 3.11 merge window. In addition to the usual bug fixes and small updates, the main highlights are: - Support for transparent huge pages by Aneesh Kumar for 64-bit server processors. This allows the use of 16M pages as transparent huge pages on kernels compiled with a 64K base page size. - Base VFIO support for KVM on power by Alexey Kardashevskiy - Wiring up of our nvram to the pstore infrastructure, including putting compressed oopses in there by Aruna Balakrishnaiah - Move, rework and improve our "EEH" (basically PCI error handling and recovery) infrastructure. It is no longer specific to pseries but is now usable by the new "powernv" platform as well (no hypervisor) by Gavin Shan. - I fixed some bugs in our math-emu instruction decoding and made it usable to emulate some optional FP instructions on processors with hard FP that lack them (such as fsqrt on Freescale embedded processors). - Support for Power8 "Event Based Branch" facility by Michael Ellerman. This facility allows what is basically "userspace interrupts" for performance monitor events. - A bunch of Transactional Memory vs. Signals bug fixes and HW breakpoint/watchpoint fixes by Michael Neuling. And more ... I appologize in advance if I've failed to highlight something that somebody deemed worth it." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits) pstore: Add hsize argument in write_buf call of pstore_ftrace_call powerpc/fsl: add MPIC timer wakeup support powerpc/mpic: create mpic subsystem object powerpc/mpic: add global timer support powerpc/mpic: add irq_set_wake support powerpc/85xx: enable coreint for all the 64bit boards powerpc/8xx: Erroneous double irq_eoi() on CPM IRQ in MPC8xx powerpc/fsl: Enable CONFIG_E1000E in mpc85xx_smp_defconfig powerpc/mpic: Add get_version API both for internal and external use powerpc: Handle both new style and old style reserve maps powerpc/hw_brk: Fix off by one error when validating DAWR region end powerpc/pseries: Support compression of oops text via pstore powerpc/pseries: Re-organise the oops compression code pstore: Pass header size in the pstore write callback powerpc/powernv: Fix iommu initialization again powerpc/pseries: Inform the hypervisor we are using EBB regs powerpc/perf: Add power8 EBB support powerpc/perf: Core EBB support for 64-bit book3s powerpc/perf: Drop MMCRA from thread_struct powerpc/perf: Don't enable if we have zero events ...
| * powerpc/fsl: add MPIC timer wakeup supportDongsheng.wang@freescale.com2013-07-011-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver provides a way to wake up the system by the MPIC timer. For example, echo 5 > /sys/devices/system/mpic/timer_wakeup echo standby > /sys/power/state After 5 seconds the MPIC timer will generate an interrupt to wake up the system. Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com> Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com>
| * powerpc/mpic: add global timer supportDongsheng.wang@freescale.com2013-07-011-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MPIC global timer is a hardware timer inside the Freescale PIC complying with OpenPIC standard. When the specified interval times out, the hardware timer generates an interrupt. The driver currently is only tested on fsl chip, but it can potentially support other global timers complying to OpenPIC standard. The two independent groups of global timer on fsl chip, group A and group B, are identical in their functionality, except that they appear at different locations within the PIC register map. The hardware timer can be cascaded to create timers larger than the default 31-bit global timers. Timer cascade fields allow configuration of up to two 63-bit timers. But These two groups of timers cannot be cascaded together. It can be used as a wakeup source for low power modes. It also could be used as periodical timer for protocols, drivers and etc. Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * powerpc/eeh: Move common part to kernel directoryGavin Shan2013-06-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch moves the common part of EEH core into arch/powerpc/kernel directory so that we needn't PPC_PSERIES while compiling POWERNV platform: * Move the EEH common part into arch/powerpc/kernel * Move the functions for PCI hotplug from pSeries platform to arch/powerpc/kernel/pci-hotplug.c * Move CONFIG_EEH from arch/powerpc/platforms/pseries/Kconfig to arch/powerpc/platforms/Kconfig * Adjust makefile accordingly Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | cpufreq: powerpc: move cpufreq driver to drivers/cpufreqViresh Kumar2013-06-071-31/+0
|/ | | | | | | Move cpufreq driver of powerpc platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge branch 'merge' of ↵Linus Torvalds2013-05-141-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "This is mostly bug fixes (some of them regressions, some of them I deemed worth merging now) along with some patches from Li Zhong hooking up the new context tracking stuff (for the new full NO_HZ)" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits) powerpc: Set show_unhandled_signals to 1 by default powerpc/perf: Fix setting of "to" addresses for BHRB powerpc/pmu: Fix order of interpreting BHRB target entries powerpc/perf: Move BHRB code into CONFIG_PPC64 region powerpc: select HAVE_CONTEXT_TRACKING for pSeries powerpc: Use the new schedule_user API on userspace preemption powerpc: Exit user context on notify resume powerpc: Exception hooks for context tracking subsystem powerpc: Syscall hooks for context tracking subsystem powerpc/booke64: Fix kernel hangs at kernel_dbg_exc powerpc: Fix irq_set_affinity() return values powerpc: Provide __bswapdi2 powerpc/powernv: Fix starting of secondary CPUs on OPALv2 and v3 powerpc/powernv: Detect OPAL v3 API version powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning again powerpc: Make CONFIG_RTAS_PROC depend on CONFIG_PROC_FS powerpc: Bring all threads online prior to migration/hibernation powerpc/rtas_flash: Fix validate_flash buffer overflow issue powerpc/kexec: Fix kexec when using VMX optimised memcpy powerpc: Fix build errors STRICT_MM_TYPECHECKS ...
| * powerpc: Make CONFIG_RTAS_PROC depend on CONFIG_PROC_FSMichael Ellerman2013-05-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are getting build errors with CONFIG_PROC_FS=n: arch/powerpc/kernel/rtas_flash.c In function 'rtas_flash_init': 745:33: error: unused variable 'f' [-Werror=unused-variable] But rtas_flash.c should not be built when CONFIG_PROC_FS=n, beacause all it does is provide a /proc interface to the RTAS flash routines. CONFIG_RTAS_FLASH already depends on CONFIG_RTAS_PROC, to indicate that it depends on the RTAS proc support, but CONFIG_RTAS_PROC does not depend on CONFIG_PROC_FS. So fix that. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-05-091-4/+0
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select
| * powerpc: remove redundant GENERIC_GPIO selectionAlexandre Courbot2013-03-201-4/+0
| | | | | | | | | | | | | | | | | | ARCH_REQUIRE_GPIOLIB selects GENERIC_GPIO, so there is no need to select it explicitly. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* | Merge remote-tracking branch 'kumar/next' into nextBenjamin Herrenschmidt2013-04-301-1/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | From Kumar Gala: << Add support for T4 and B4 SoC families from Freescale, e6500 altivec support, some various board fixes and other minor cleanups. >>
| * | powerpc/fsl: remove the PPC_CLOCK dependencyTang Yuantian2013-03-121-1/+0
| |/ | | | | | | | | | | | | | | | | | | | | Config FSL_SOC does not depend on PPC_CLOCK anymore since the following commit got merged: 93abe8e (clk: add non CONFIG_HAVE_CLK routines) Config CPM does not use PPC_CLOCK either currently. So remove them. PPC_CLOCK also keeps Freescale PowerPC archtecture from supporting COMMON_CLK. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | powerpc: remove PReP platformPaul Bolle2013-04-181-2/+1
|/ | | | | | | | PPC_PREP is marked as BROKEN since v2.6.15. Remove all PReP specific code now. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
* powerpc, dma: move bestcomm driver from arch/powerpc/sysdev to drivers/dmaPhilippe De Muyter2013-01-031-2/+0
| | | | | | | | | | | | | | | The bestcomm dma hardware, and some of its users like the FEC ethernet component, is used in different FreeScale parts, including non-powerpc parts like the ColdFire MCF547x & MCF548x families. Don't keep the driver hidden in arch/powerpc where it is inaccessible for other arches. .c files are moved to drivers/dma/bestcomm, while .h files are moved to include/linux/fsl/bestcomm. Makefiles, Kconfigs and #include directives are updated for the new file locations. Tested by recompiling for MPC5200 with all bestcomm users enabled. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* PPC: select EPAPR_PARAVIRT for all users of epapr hcallsStuart Yoder2012-10-051-0/+1
| | | | | Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* KVM: PPC: Factor out guest epapr initializationLiu Yu-B132012012-05-301-0/+9
| | | | | | | | | | epapr paravirtualization support is now a Kconfig selectable option Signed-off-by: Liu Yu <yu.liu@freescale.com> [stuart.yoder@freescale.com: misc minor fixes, description update] Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* powerpc: add support for MPIC message register APIJia Hongtao2012-03-161-0/+8
| | | | | | | | | | | | | | Some MPIC implementations contain one or more blocks of message registers that are used to send messages between cores via IPIs. A simple API has been added to access (get/put, read, write, etc ...) these message registers. The available message registers are initially discovered via nodes in the device tree. A separate commit contains a binding for the message register nodes. Signed-off-by: Meador Inge <meador_inge@mentor.com> Signed-off-by: Jia Hongtao <B38951@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: remove CONFIG_PPC_ISERIES from the architecture Kconfig filesStephen Rothwell2012-02-271-2/+1
| | | | | | | After this, we can remove the legacy iSeries code more easily. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds2012-01-101-3/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lib: use generic pci_iomap on all architectures Many architectures don't want to pull in iomap.c, so they ended up duplicating pci_iomap from that file. That function isn't trivial, and we are going to modify it https://lkml.org/lkml/2011/11/14/183 so the duplication hurts. This reduces the scope of the problem significantly, by moving pci_iomap to a separate file and referencing that from all architectures. * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: alpha: drop pci_iomap/pci_iounmap from pci-noop.c mn10300: switch to GENERIC_PCI_IOMAP mn10300: add missing __iomap markers frv: switch to GENERIC_PCI_IOMAP tile: switch to GENERIC_PCI_IOMAP tile: don't panic on iomap sparc: switch to GENERIC_PCI_IOMAP sh: switch to GENERIC_PCI_IOMAP powerpc: switch to GENERIC_PCI_IOMAP parisc: switch to GENERIC_PCI_IOMAP mips: switch to GENERIC_PCI_IOMAP microblaze: switch to GENERIC_PCI_IOMAP arm: switch to GENERIC_PCI_IOMAP alpha: switch to GENERIC_PCI_IOMAP lib: add GENERIC_PCI_IOMAP lib: move GENERIC_IOMAP to lib/Kconfig Fix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
| * lib: move GENERIC_IOMAP to lib/KconfigMichael S. Tsirkin2011-11-241-3/+0
| | | | | | | | | | | | | | | | | | define GENERIC_IOMAP in a central location instead of all architectures. This will be helpful for the follow-up patch which makes it select other configs. Code is also a bit shorter this way. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* | powerpc/cpuidle: Enable cpuidle and directly call cpuidle_idle_call() for ↵Deepthi Dharwar2011-12-081-0/+6
|/ | | | | | | | | | | | | | | | | | pSeries This patch enables cpuidle for pSeries and pSeries_idle is directly called from the idle loop. As a result of pSeries_idle, cpuidle driver registered with cpuidle subsystem comes into action. On failure of loading of the driver or cpuidle framework default idle is executed as part of the function. This patch also removes the routines pseries_shared_idle_sleep and pseries_dedicated_idle_sleep as they are now implemented as part of pseries_idle cpuidle driver. Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Signed-off-by: Arun R Bharadwaj <arun.r.bharadwaj@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/fsl: MCU_MPC8349EMITX wants I2C built-in, modular won't do...Al Viro2011-11-161-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/83xx: Add shutdown request support to MCU handling on MPC8349 MITXFabio Baltieri2011-11-031-1/+1
| | | | | | | | | | | | | | | | This patch add support for calling ctrl_alt_del() when the power button is pressed for more than about 2 seconds on some freescale MPC83xx evaluation boards and reference design. The code uses a kthread to poll the CTRL_BTN bit each second. Also change Kconfig entry of the driver to bool, as device's gpio registration is broken when loading as module. Tested on an MPC8315E RDB board. Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* gpio: move mpc8xxx/512x gpio driver to drivers/gpioWolfram Sang2011-09-231-10/+0
| | | | | | | | | | | | | | Move the driver to the place where it is expected to be nowadays. Also rename its CONFIG-name to match the rest and adapt the defconfigs. Finally, move selection of REQUIRE_GPIOLIB or WANTS_OPTIONAL_GPIOLIB to the platforms, because this option is per-platform and not per-driver. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Anatolij Gustschin <agust@denx.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* powerpc: Add skeleton PowerNV platformBenjamin Herrenschmidt2011-09-201-0/+1
| | | | | | | | | | | | | | | | This adds a skeletton for the new Power "Non Virtualized" platform which will be used by machines supporting running without an hypervisor, for example in order to run KVM. These machines will be using a new firmware called OPAL for which the support will be provided by later patches. The PowerNV platform is intended to be also usable under the BML environment used internally for early CPU bringup which is why the code also supports using RTAS instead of OPAL in various places. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Make KVM_GUEST default to nAnton Blanchard2011-08-051-1/+1
| | | | | | | | | | | | KVM_GUEST adds a 1 MB array to the kernel (kvm_tmp) which grew my kernel enough to cause it to fail to boot. Dynamically allocating or reducing the size of this array is a good idea, but in the meantime I think it makes sense to make KVM_GUEST default to n in order to minimise surprises. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: introduce the ePAPR embedded hypervisor vmpic driverAshish Kalra2011-06-271-0/+4
| | | | | | | | | | | | | | | | | | | | | | The Freescale ePAPR reference hypervisor provides interrupt controller services via a hypercall interface, instead of emulating the MPIC controller. This is called the VMPIC. The ePAPR "virtual interrupt controller" provides interrupt controller services for external interrupts. External interrupts received by a partition can come from two sources: - Hardware interrupts - hardware interrupts come from external interrupt lines or on-chip I/O devices. - Virtual interrupts - virtual interrupts are generated by the hypervisor as part of some hypervisor service or hypervisor-created virtual device. Both types of interrupts are processed using the same programming model and same set of hypercalls. Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com> Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/qe: Limit QE support to ppc32Kumar Gala2011-06-221-1/+1
| | | | | | Only 32-bit SoCs have a QUICC Engine so limit the config option to PPC32. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Remove unused/obsolete CONFIG_XICSBenjamin Herrenschmidt2011-05-191-5/+0
| | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add kconfig for muxed smp ipi supportMilton Miller2011-05-191-0/+8
| | | | | | | | | | | | | | | | | | Compile the new smp ipi mux and demux code only if a platform will make use of it. The new config is selected as required. The new cause_ipi smp op is only available conditionally to point out configs where the select is required; this makes setting the op an immediate fail instead of a deferred unresolved symbol at link. This also creates a new config for power surge powermac upgrade support that can be disabled in expert mode but is default on. I also removed the depends / default y on CONFIG_XICS since it is selected by PSERIES. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add WSP platformDavid Gibson2011-05-061-0/+1
| | | | | | | | | | | | | | Add a platform for the Wire Speed Processor, based on the PPC A2. This includes code for the ICS & OPB interrupt controllers, as well as a SCOM backend, and SCOM based cpu bringup. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Jack Miller <jack@codezen.org> Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Move IO workarounds to the common kernel dirMichael Ellerman2011-04-271-0/+3
| | | | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Split IO vs MMIO indirect access hooksMichael Ellerman2011-04-271-2/+8
| | | | | | | | The goal is to avoid adding overhead to MMIO when only PIO is needed Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add NAP mode support on Power7 in HV modeBenjamin Herrenschmidt2011-04-201-0/+4
| | | | | | | | | Wakeup comes from the system reset handler with a potential loss of the non-hypervisor CPU state. We save the non-volatile state on the stack and a pointer to it in the PACA, which the system reset handler uses to restore things Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Documentation: fix minor typos/spellingSylvestre Ledru2011-04-041-1/+1
| | | | | | | | | | | Fix some minor typos: * informations => information * there own => their own * these => this Signed-off-by: Sylvestre Ledru <sylvestre.ledru@scilab.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge v2.6.37-rc8 into powerpc/nextGrant Likely2010-12-291-2/+11
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| * KVM: PPC: Generic KVM PV guest supportAlexander Graf2010-10-241-0/+10
| | | | | | | | | | | | | | | | | | | | | | We have all the hypervisor pieces in place now, but the guest parts are still missing. This patch implements basic awareness of KVM when running Linux as guest. It doesn't do anything with it yet though. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
| * powerpc: Fix config dependency problem with MPIC_U3_HT_IRQSAndreas Schwab2010-08-241-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | MPIC_U3_HT_IRQS is selected both by PPC_PMAC64 and PPC_MAPLE, but depends on PPC_MAPLE, so a PPC_PMAC64-only config gets this warning: warning: (PPC_PMAC64 && PPC_PMAC && POWER4 || PPC_MAPLE && PPC64 && PPC_BOOK3S) selects MPIC_U3_HT_IRQS which has unmet direct dependencies (PPC_MAPLE) Fix that by removing the dependency on PPC_MAPLE. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/5xxx: extend mpc8xxx_gpio driver to support mpc512x gpiosAnatolij Gustschin2010-09-101-3/+4
|/ | | | | | | | | | | | | | | | | | | The GPIO controller of MPC512x is slightly different from 8xxx GPIO controllers. The register interface is the same except the external interrupt control register. The MPC512x GPIO controller differentiates between four interrupt event types and therefore provides two interrupt control registers, GPICR1 and GPICR2. GPIO[0:15] interrupt event types are configured in GPICR1 register, GPIO[16:31] - in GPICR2 register. This patch adds MPC512x speciffic set_type() callback and updates config file and comments. Additionally the gpio chip registration function is changed to use for_each_matching_node() preventing multiple registration if a node claimes compatibility with another gpio controller type. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* powerpc/85xx: Kconfig cleanupKumar Gala2009-11-201-2/+2
| | | | | | | Introduce new FSL_SOC_BOOKE Kconfig to handle both 85xx and QorIQ based chips. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/chrp: Use the same RTAS daemon as pSeriesBenjamin Herrenschmidt2009-10-301-0/+5
| | | | | | | | | | | | | | | | The CHRP code has some fishy timer based code to scan the RTAS event log, which uses a 1KB stack buffer and doesn't even use the results. The pSeries code as a nicer daemon that allows userspace to read the event log and basically uses the same RTAS interface This patch moves rtasd.c out of platform/pseries and makes it usable by CHRP, after removing the old crufty event log mechanism in there. The nvram logging part of the daemon is still only available on 64-bit since the underlying nvram management routines aren't currently shared. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/virtex: Add support for Xilinx PCI host bridgeRoderick Colenbrander2009-06-061-0/+4
| | | | | | | | This patch adds support for the Xilinx plbv46-pci-1.03.a PCI host bridge IPcore. Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-04-031-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits) trivial: Update my email address trivial: NULL noise: drivers/mtd/tests/mtd_*test.c trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h trivial: Fix misspelling of "Celsius". trivial: remove unused variable 'path' in alloc_file() trivial: fix a pdlfush -> pdflush typo in comment trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL trivial: wusb: Storage class should be before const qualifier trivial: drivers/char/bsr.c: Storage class should be before const qualifier trivial: h8300: Storage class should be before const qualifier trivial: fix where cgroup documentation is not correctly referred to trivial: Give the right path in Documentation example trivial: MTD: remove EOL from MODULE_DESCRIPTION trivial: Fix typo in bio_split()'s documentation trivial: PWM: fix of #endif comment trivial: fix typos/grammar errors in Kconfig texts trivial: Fix misspelling of firmware trivial: cgroups: documentation typo and spelling corrections trivial: Update contact info for Jochen Hein trivial: fix typo "resgister" -> "register" ...
| * trivial: fix typos/grammar errors in Kconfig textsMatt LaPlante2009-03-301-1/+1
| | | | | | | | | | | | Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | powerpc/cell: Make axonram depends on BLOCKMichael Ellerman2009-03-241-1/+1
| | | | | | | | | | | | | | Fix axonram driver dependency Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/kconfig: Kill PPC_MULTIPLATFORMBenjamin Herrenschmidt2009-03-111-12/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_PPC_MULTIPLATFORM is a remain of the pre-powerpc days and isn't really meaningful anymore. It was basically equivalent to PPC64 || 6xx. This removes it along with the following changes: - 32-bit platforms that relied on PPC32 && PPC_MULTIPLATFORM now rely on 6xx which is what they want anyway. - A new symbol, PPC_BOOK3S, is defined that represent compliance with the "Server" variant of the architecture. This is set when either 6xx or PPC64 is set and open the door for future BOOK3E 64-bit. - 64-bit platforms that relied on PPC64 && PPC_MULTIPLATFORM now use PPC64 && PPC_BOOK3S - A separate and selectable CONFIG_PPC_OF_BOOT_TRAMPOLINE option is now used to control the use of prom_init.c Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/cell: Fix dependency in cpufreqArnd Bergmann2009-02-231-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | cbe_cpufreq has a partial dependency on cbe_cpufreq_pmi, which cannot be easily expressed in Kconfig. This fixes it by introducing an extra Kconfig symbol CBE_CPUFREQ_PMI_ENABLE. To make the dependency clearer, turn PPC_PMI into an automatic symbol. Reported-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/amigaone: Add platform support for AmigaOneGerhard Pircher2009-02-111-0/+1
|/ | | | | | | | | | | | | | | This commit adds the setup code for booting Linux on AmigaOne G3SE (G3 only), AmigaOne XE and uA1 (G3/G4) desktop computers. These boards were sold by Eyetech and are based on MAI Logic's Teron boards and its Articia S northbridge. The AmigaOne uses U-boot as firmware, which doesn't support a flattened device tree yet. The northbridge has some design flaws, which makes it necessary to use non cacheable memory for DMA operations (CONFIG_NOT_COHERENT_CACHE) and to avoid setting the coherence (M) flag for memory pages. Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/83xx: Move mcu_mpc8349emitx driver out of drivers/i2c/chips/Anton Vorontsov2009-01-131-0/+11
| | | | | | | | | | This patch is used to help Jean Delvare to get rid of drivers/i2c/chips/ directory. The new location suggested by Kumar Gala: as the driver is 83xx specific it's placed into arch/powerpc/platforms/83xx/. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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