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2011-12-07powerpc/mpic: Search for open-pic device-tree node if NULLKyle Moffett1-4/+30
Almost all PowerPC platforms use a standard "open-pic" device node so the mpic_alloc() function now accepts NULL for the device-node. This will cause it to perform a default search with of_find_matching_node(). Signed-off-by: Kyle Moffett <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-12-07powerpc/mpic: Save computed phys_addr for board-specific codeKyle Moffett1-5/+6
The MPIC code can already perform an automatic OF address translation step as part of mpic_alloc(), but several boards need to use that base address when they perform mpic_assign_isu(). The easiest solution is to save the computed physical address into the "struct mpic" for later use by the board code. Signed-off-by: Kyle Moffett <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-12-07powerpc/mpic: Assume a device-node was passed in mpic_alloc()Kyle Moffett1-29/+21
All of the existing callers of mpic_alloc() pass in a non-NULL device-node pointer, so the checks for a NULL device-node may be removed. Signed-off-by: Kyle Moffett <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-12-07powerpc: Consolidate mpic_alloc() OF address translationKyle Moffett1-27/+34
Instead of using the open-coded "reg" property lookup and address translation in mpic_alloc(), directly call of_address_to_resource(). This includes various workarounds for special cases which the naive of_address_translate() does not. Afterwards it is possible to remove the copiously copy-pasted calls to of_address_translate() from the 85xx/86xx/powermac platforms. Signed-off-by: Kyle Moffett <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Grant Likely <[email protected]> Cc: Kumar Gala <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-11-28powerpc/xics: Harden xics hypervisor backendAnton Blanchard1-11/+27
During kdump stress testing I sometimes see the kdump kernel panic with: Interrupt 0x306 (real) is invalid, disabling it. Kernel panic - not syncing: bad return code EOI - rc = -4, value=ff000306 Instead of panicing print the error message, dump the stack the first time it happens and continue on. Add some more information to the debug messages as well. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-11-25Merge remote-tracking branch 'kumar/next' into nextBenjamin Herrenschmidt9-1250/+1591
2011-11-25powerpc/mpic: Remove extra semicolon.Justin P. Mattock1-1/+1
The patch below removes an extra semicolon. Signed-off-by: Justin P. Mattock <[email protected]> CC: [email protected] CC: Paul Mackerras <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-11-25powerpc: Mark IPI interrupts IRQF_NO_THREADThomas Gleixner1-1/+1
IPI handlers cannot be threaded. Remove the obsolete IRQF_DISABLED flag (see commit e58aa3d2) while at it. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-11-24powerpc/fsl_msi: add support for the fsl, msi property in PCI nodesTimur Tabi2-0/+42
On Freescale parts with multiple MSI controllers, the controllers are combined into one "pool" of interrupts. Whenever a device requests an MSI interrupt, the next available interrupt from the pool is selected, regardless of which MSI controller the interrupt is from. This works because each PCI bus has an ATMU to all of CCSR, so any PCI device can access any MSI interrupt register. The fsl,msi property is used to specify that a given PCI bus should only use a specific MSI device. This is necessary, for example, with the Freescale hypervisor, because the MSI devices are assigned to specific partitions. Ideally, we'd like to be able to assign MSI devices to PCI busses within the MSI or PCI layers. However, there does not appear to be a mechanism to do that. Whenever the MSI layer wants to allocate an MSI interrupt to a PCI device, it just calls arch_setup_msi_irqs(). It would be nice if we could register an MSI device with a specific PCI bus. So instead we remember the phandles of each MSI device, and we use that to limit our search for an available interrupt. Whenever we are asked to allocate a new interrupt for a PCI device, we check the fsl,msi property of the PCI bus for that device. If it exists, then as we are looping over all MSI devices, we skip the ones that don't have a matching phandle. Signed-off-by: Timur Tabi <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-24powerpc/85xx: Add lbc suspend support for PMJia Hongtao1-0/+36
Power supply for LBC registers is off when system go to deep-sleep state. We save the values of registers before suspend and restore to registers after resume. We removed the last two reservation arrays from struct fsl_lbc_regs for allocating less memory and minimizing the memcpy size. Signed-off-by: Jiang Yutang <[email protected]> Signed-off-by: Jia Hongtao <[email protected]> Signed-off-by: Li Yang <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-24fsl-rio: Add two ports and rapidio message units supportLiu Gang3-423/+545
Usually, freescale rapidio endpoint can support one or two 1x or 4X LP-Serial link interfaces, and rapidio message transactions can be implemented by two message units. This adds the support of two rapidio ports and initializes message unit 0 and message unit 1. And these ports and message units can work simultaneously. Signed-off-by: Li Yang <[email protected]> Signed-off-by: Jin Qing <[email protected]> Signed-off-by: Liu Gang <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-24fsl-rio: Split rio driver into two parts, RapidIO endpoint and message unitLiu Gang4-1128/+1267
The Freescale PowerPC RapidIO controller consists of a RapidIO endpoint and a RapidIO message unit(RMU). Or use RapidIO message manager(RMan) to replace the RMU in DPAA architecture. Therefore, we should split the code into two function modules according to the hardware architecture. Add new struct for RMU module, and new initialization function to set up RMU module. This policy is very conducive to adding new module like RMan, or adding multi-ports or message units support. Signed-off-by: Lian Minghuan <[email protected]> Signed-off-by: Liu Gang <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-24arch/powerpc/sysdev/ehv_pic.c: add missing kfreeJulia Lawall1-0/+1
At this point, ehv_pic has been allocated but not stored anywhere, so it should be freed before leaving the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @exists@ local idexpression x; statement S,S1; expression E; identifier fl; expression *ptr != NULL; @@ x = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...kfree(x)...+> } when any when != true x == NULL x->fl ...> ( if (x == NULL) S1 | if (...) { ... when != x when forall ( return \(0\|<+...x...+>\|ptr\); | * return ...; ) } ) // </smpl> Signed-off-by: Julia Lawall <[email protected]> Acked-by: Timur Tabi <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-24powerpc/fsl-lbc: Fix for fsl_upmAlexandre Rusev1-0/+1
If Freescale LBC driver fails to initialise itself from device tree, then internal structure is freed only but not NULL-fied. As result functions fsl_lbc_find() after checking the structure is not NULL are trying to access device registers. Signed-off-by: Alexandre Rusev <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-24powerpc/qe: Fixup QE_General4 errataJoakim Tjernlund1-1/+1
QE_General4 should only round up the divisor iff divisor is > 3. Rounding up lower divisors makes the error too big, causing USB on MPC832x to fail. Signed-off-by: Joakim Tjernlund <[email protected]> Acked-by: Timur Tabi <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-15Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: fsl-rio: fix compile error
2011-11-14fsl-rio: fix compile errorLiu Gang1-1/+1
The "#include <linux/module.h>" was replaced by "#include <linux/export.h>" in the patch "powerpc: various straight conversions from module.h --> export.h". This will cause the following compile problem: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_mcheck_exception': arch/powerpc/sysdev/fsl_rio.c:296: error: implicit declaration of function 'search_exception_tables'. The file fsl_rio.c needs the declaration of function "search_exception_tables" in the header file "linux/module.h". Signed-off-by: Liu Gang <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]>
2011-11-08powerpc/irq: Remove IRQF_DISABLEDYong Zhang3-6/+3
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Geoff Levand <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds22-10/+21
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-06Merge branch 'next' of ↵Linus Torvalds12-447/+385
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (106 commits) powerpc/p3060qds: Add support for P3060QDS board powerpc/83xx: Add shutdown request support to MCU handling on MPC8349 MITX powerpc/85xx: Make kexec to interate over online cpus powerpc/fsl_booke: Fix comment in head_fsl_booke.S powerpc/85xx: issue 15 EOI after core reset for FSL CoreNet devices powerpc/8xxx: Fix interrupt handling in MPC8xxx GPIO driver powerpc/85xx: Add 'fsl,pq3-gpio' compatiable for GPIO driver powerpc/86xx: Correct Gianfar support for GE boards powerpc/cpm: Clear muram before it is in use. drivers/virt: add ioctl for 32-bit compat on 64-bit to fsl-hv-manager powerpc/fsl_msi: add support for "msi-address-64" property powerpc/85xx: Setup secondary cores PIR with hard SMP id powerpc/fsl-booke: Fix settlbcam for 64-bit powerpc/85xx: Adding DCSR node to dtsi device trees powerpc/85xx: clean up FPGA device tree nodes for Freecsale QorIQ boards powerpc/85xx: fix PHYS_64BIT selection for P1022DS powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map powerpc: respect mem= setting for early memory limit setup powerpc: Update corenet64_smp_defconfig powerpc: Update mpc85xx/corenet 32-bit defconfigs ... Fix up trivial conflicts in: - arch/powerpc/configs/40x/hcu4_defconfig removed stale file, edited elsewhere - arch/powerpc/include/asm/udbg.h, arch/powerpc/kernel/udbg.c: added opal and gelic drivers vs added ePAPR driver - drivers/tty/serial/8250.c moved UPIO_TSI to powerpc vs removed UPIO_DWAPB support
2011-11-04Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-6/+2
* 'for-3.2/core' of git://git.kernel.dk/linux-block: (29 commits) block: don't call blk_drain_queue() if elevator is not up blk-throttle: use queue_is_locked() instead of lockdep_is_held() blk-throttle: Take blkcg->lock while traversing blkcg->policy_list blk-throttle: Free up policy node associated with deleted rule block: warn if tag is greater than real_max_depth. block: make gendisk hold a reference to its queue blk-flush: move the queue kick into blk-flush: fix invalid BUG_ON in blk_insert_flush block: Remove the control of complete cpu from bio. block: fix a typo in the blk-cgroup.h file block: initialize the bounce pool if high memory may be added later block: fix request_queue lifetime handling by making blk_queue_cleanup() properly shutdown block: drop @tsk from attempt_plug_merge() and explain sync rules block: make get_request[_wait]() fail if queue is dead block: reorganize throtl_get_tg() and blk_throtl_bio() block: reorganize queue draining block: drop unnecessary blk_get/put_queue() in scsi_cmd_ioctl() and blk_get_tg() block: pass around REQ_* flags instead of broken down booleans during request alloc/free block: move blk_throtl prototypes to block/blk.h block: fix genhd refcounting in blkio_policy_parse_and_set() ... Fix up trivial conflicts due to "mddev_t" -> "struct mddev" conversion and making the request functions be of type "void" instead of "int" in - drivers/md/{faulty.c,linear.c,md.c,md.h,multipath.c,raid0.c,raid1.c,raid10.c,raid5.c} - drivers/staging/zram/zram_drv.c
2011-11-03powerpc/85xx: issue 15 EOI after core reset for FSL CoreNet devicesMatthew McClintock1-0/+10
This is listed as a requirement for Freescale CoreNet based devices (e.g p4080ds with MPIC v4.x) after issuing a core reset to properly clear pending interrupts. Signed-off-by: Matthew McClintock <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-11-02arch/powerpc/sysdev/fsl_rio.c: release rapidio port I/O region resource if ↵Liu Gang1-0/+1
port failed to initialize The "struct rio_mport" contains a member of master port I/O memory resource structure "struct resource iores". This resource will be read from device tree and be used for rapidio R/W transaction memory space. Rapidio requests the port I/O memory resource under the root resource "iomem_resource". struct rio_mport *port; port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL); request_resource(&iomem_resource, &port->iores); When port failed to initialize, allocated "rio_mport" structure memory will be freed, and the port I/O memory resource structure pointer "&port->iores" will be invalid. If other requests resource under "iomem_resource", "&port->iores" node may be operated in the child resources list and this will cause the system to crash. So the requested port I/O memory resource should be released before freeing allocated "rio_mport" structure. Signed-off-by: Liu Gang <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Grant Likely <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-10-31powerpc: remove non-required uses of include <linux/module.h>Paul Gortmaker2-2/+0
None of the files touched here are modules, and they are not exporting any symbols either -- so there is no need to be including the module.h. Builds of all the files remains successful. Even kernel/module.c does not need to include it, since it includes linux/moduleloader.h instead. Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31powerpc: various straight conversions from module.h --> export.hPaul Gortmaker8-8/+8
All these files were including module.h just for the basic EXPORT_SYMBOL infrastructure. We can shift them off to the export.h header which is a way smaller footprint and thus realize some compile time gains. Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31powerpc: Fix up implicit sched.h usersPaul Gortmaker1-0/+1
They are getting it through device.h --> module.h path, but we want to clean that up. This is a sample of what will happen if we don't: pseries/iommu.c: In function 'tce_build_pSeriesLP': pseries/iommu.c:136: error: implicit declaration of function 'show_stack' pseries/eeh.c: In function 'eeh_token_to_phys': pseries/eeh.c:359: error: 'init_mm' undeclared (first use in this function) pseries/eeh_event.c: In function 'eeh_event_handler': pseries/eeh_event.c:63: error: implicit declaration of function 'daemonize' pseries/eeh_event.c:64: error: implicit declaration of function 'set_current_state' pseries/eeh_event.c:64: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) pseries/eeh_event.c:64: error: (Each undeclared identifier is reported only once pseries/eeh_event.c:64: error: for each function it appears in.) pseries/eeh_event.c: In function 'eeh_thread_launcher': pseries/eeh_event.c:109: error: 'CLONE_KERNEL' undeclared (first use in this function) hotplug-cpu.c: In function 'pseries_mach_cpu_die': hotplug-cpu.c:115: error: implicit declaration of function 'idle_task_exit' kernel/swsusp_64.c: In function 'do_after_copyback': kernel/swsusp_64.c:17: error: implicit declaration of function 'touch_softlockup_watchdog' cell/spufs/context.c: In function 'alloc_spu_context': cell/spufs/context.c:60: error: implicit declaration of function 'get_task_mm' cell/spufs/context.c:60: warning: assignment makes pointer from integer without a cast cell/spufs/context.c: In function 'spu_forget': cell/spufs/context.c:127: error: implicit declaration of function 'mmput' pasemi/dma_lib.c: In function 'pasemi_dma_stop_chan': pasemi/dma_lib.c:332: error: implicit declaration of function 'cond_resched' sysdev/fsl_lbc.c: In function 'fsl_lbc_ctrl_irq': sysdev/fsl_lbc.c:247: error: 'TASK_NORMAL' undeclared (first use in this function) Add in sched.h so these get the definitions they are looking for. Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31powerpc: Fix up implicit stat.h usersPaul Gortmaker1-0/+1
They get it via module.h (via device.h) but we want to clean that up. When we do, we'll get things like: ibmebus.c:314: error: 'S_IWUSR' undeclared here (not in a function) vio.c:972: error: 'S_IWUSR' undeclared here (not in a function) so add in the stat header it is using explicitly in advance. Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31powerpc: Fix up modules that should be including module.hPaul Gortmaker2-0/+2
So that we can clean up the header files and not be relying on implicit includes from device.h ---> module.h Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker2-0/+2
Fix failures in powerpc associated with the previously allowed implicit module.h presence that now lead to things like this: arch/powerpc/mm/mmu_context_hash32.c:76:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/powerpc/mm/tlb_hash32.c:48:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' arch/powerpc/kernel/pci_32.c:51:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/powerpc/kernel/iomap.c:36:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' arch/powerpc/platforms/44x/canyonlands.c:126:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' arch/powerpc/kvm/44x.c:168:59: error: 'THIS_MODULE' undeclared (first use in this function) [with several contibutions from Stephen Rothwell <[email protected]>] Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-31powerpc: add export.h to files making use of EXPORT_SYMBOLPaul Gortmaker7-0/+7
With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker <[email protected]>
2011-10-30Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6Linus Torvalds1-8/+17
* 'fbdev-next' of git://github.com/schandinat/linux-2.6: (270 commits) video: platinumfb: Add __devexit_p at necessary place drivers/video: fsl-diu-fb: merge diu_pool into fsl_diu_data drivers/video: fsl-diu-fb: merge diu_hw into fsl_diu_data drivers/video: fsl-diu-fb: only DIU modes 0 and 1 are supported drivers/video: fsl-diu-fb: remove unused panel operating mode support drivers/video: fsl-diu-fb: use an enum for the AOI index drivers/video: fsl-diu-fb: add several new video modes drivers/video: fsl-diu-fb: remove broken screen blanking support drivers/video: fsl-diu-fb: move some definitions out of the header file drivers/video: fsl-diu-fb: fix some ioctls video: da8xx-fb: Increased resolution configuration of revised LCDC IP OMAPDSS: picodlp: add missing #include <linux/module.h> fb: fix au1100fb bitrot. mx3fb: fix NULL pointer dereference in screen blanking. video: irq: Remove IRQF_DISABLED smscufx: change edid data to u8 instead of char OMAPDSS: DISPC: zorder support for DSS overlays OMAPDSS: DISPC: VIDEO3 pipeline support OMAPDSS/OMAP_VOUT: Fix incorrect OMAP3-alpha compatibility setting video/omap: fix build dependencies ... Fix up conflicts in: - drivers/staging/xgifb/XGI_main_26.c Changes to XGIfb_pan_var() - drivers/video/omap/{lcd_apollon.c,lcd_ldp.c,lcd_overo.c} Removed (or in the case of apollon.c, merged into the generic DSS panel in drivers/video/omap2/displays/panel-generic-dpi.c)
2011-10-26Merge branch 'core-locking-for-linus' of ↵Linus Torvalds1-12/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock() lockdep: Comment all warnings lib: atomic64: Change the type of local lock to raw_spinlock_t locking, lib/atomic64: Annotate atomic64_lock::lock as raw locking, x86, iommu: Annotate qi->q_lock as raw locking, x86, iommu: Annotate irq_2_ir_lock as raw locking, x86, iommu: Annotate iommu->register_lock as raw locking, dma, ipu: Annotate bank_lock as raw locking, ARM: Annotate low level hw locks as raw locking, drivers/dca: Annotate dca_lock as raw locking, powerpc: Annotate uic->lock as raw locking, x86: mce: Annotate cmci_discover_lock as raw locking, ACPI: Annotate c3_lock as raw locking, oprofile: Annotate oprofilefs lock as raw locking, video: Annotate vga console lock as raw locking, latencytop: Annotate latency_lock as raw locking, timer_stats: Annotate table_lock as raw locking, rwsem: Annotate inner lock as raw locking, semaphores: Annotate inner lock as raw locking, sched: Annotate thread_group_cputimer as raw ... Fix up conflicts in kernel/posix-cpu-timers.c manually: making cputimer->cputime a raw lock conflicted with the ABBA fix in commit bcd5cff7216f ("cputimer: Cure lock inversion").
2011-10-22powerpc/cpm: Clear muram before it is in use.Hongjun Chen1-1/+2
We need to ensure that MURAM is in a known and cleared out state before using it as the bootloader could have utilized it from its own purposes and left it in an unknown state. If we don't clear it out we've seen issues with UCC ethernet: * Multi ethernet interfaces can't work simultanously. * Multi up/down Ethernet interfaces will halt these ports. * UCC1 RGMII can't work when kernel boots from some hosts. Signed-off-by: Kai.Jiang <[email protected]> Signed-off-by: Hongjun Chen <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-10-19Merge branch 'v3.1-rc10' into for-3.2/coreJens Axboe2-4/+6
Conflicts: block/blk-core.c include/linux/blkdev.h Signed-off-by: Jens Axboe <[email protected]>
2011-10-15Merge commit 'v3.1-rc9' into fbdev-nextFlorian Tobias Schandinat1-2/+3
2011-10-14powerpc/fsl_msi: add support for "msi-address-64" propertyTimur Tabi2-8/+15
Add support for the msi-address-64 property of a PCI node. This property specifies the PCI address of MSIIR (message signaled interrupt index register). In commit 3da34aae ("powerpc/fsl: Support unique MSI addresses per PCIe Root Complex"), the msi_addr_hi/msi_addr_lo fields of struct fsl_msi were redefined from an actual address to just an offset, but the fields were not renamed accordingly. These fields are replace with a single field, msiir_offset, to reflect the new meaning. Signed-off-by: Timur Tabi <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-10-11powerpc/fsl_msi: fix support for multiple MSI rangesTimur Tabi1-3/+5
Commit 6820fead ("powerpc/fsl_msi: Handle msi-available-ranges better") added support for multiple ranges in the msi-available-ranges property, but it miscalculated the MSIR index when multiple ranges are used. Signed-off-by: Timur Tabi <[email protected]> Acked-by: Scott Wood <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2011-09-27doc: fix broken referencesPaul Bolle1-1/+1
There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: Paul Bolle <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2011-09-23gpio: move mpc8xxx/512x gpio driver to drivers/gpioWolfram Sang2-396/+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 <[email protected]> Cc: Anatolij Gustschin <[email protected]> Cc: Grant Likely <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Acked-by: Grant Likely <[email protected]> Signed-off-by: Anatolij Gustschin <[email protected]>
2011-09-20powerpc/powernv: Add OPAL ICS backendBenjamin Herrenschmidt3-6/+247
OPAL handles HW access to the various ICS or equivalent chips for us (with the exception of p5ioc2 based HEA which uses a different backend) similarily to what RTAS does on pSeries. Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-09-20powerpc/xics: Add __init to marker icp_native_init()Arnaud Lacombe1-1/+1
This should fix the following warning: LD arch/powerpc/sysdev/xics/built-in.o WARNING: arch/powerpc/sysdev/xics/built-in.o(.text+0x1310): Section mismatch in reference from the function .icp_native_init() to the function .init.text:.icp_native_init_one_node() The function .icp_native_init() references the function __init .icp_native_init_one_node(). This is often because .icp_native_init lacks a __init annotation or the annotation of .icp_native_init_one_node is wrong. icp_native_init() is only referenced in `arch/powerpc/sysdev/xics/xics-common.c' by xics_init() which is itself marked with __init. = not built-tested = Reported-by: Timur Tabi <[email protected]> Signed-off-by: Arnaud Lacombe <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-09-20powerpc/4xx/pci: Add __init annotations for *init_port_hw() functions.Tony Breeds1-6/+6
The various port_init_hw methods of ppc4xx_pciex_hwops should have been marked __init and when I added ppc4xx_pciex_port_reset_sdr(), which is __init. This added many section mismatch warnings like: WARNING: arch/powerpc/sysdev/built-in.o(.text+0x5c68): Section mismatch in reference from the function ppc440spe_pciex_init_port_hw() to the function .init.text:ppc4xx_pciex_port_reset_sdr() The function ppc440spe_pciex_init_port_hw() references the function __init ppc4xx_pciex_port_reset_sdr(). This is often because ppc440spe_pciex_init_port_hw lacks a __init annotation or the annotation of ppc4xx_pciex_port_reset_sdr is wrong. Trivial patch to silence those warnings. Reported-By: Stephen Rothwell <[email protected]> Signed-off-by: Tony Breeds <[email protected]> Yours Tony Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-09-20powerpc/mpic: Add support for discontiguous coresTimur Tabi1-9/+15
There is one place in the MPIC driver that assumes that the cores are numbered from 0 to n-1. However, this is not true if the CPUs are not numbered sequentially. This can happen on a eight-core SOC where cores two and three are removed in the device tree. So instead of blindly looping, we iterate over the discovered CPUs and use the SMP ID as the index. This means that we no longer ask the MPIC how many CPUs there are, so we also delete mpic->num_cpus. We also catch if the number of CPUs in the SOC exceeds the number that the MPIC supports. This should never happen, of course, but it's good to be sure. Signed-off-by: Timur Tabi <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-09-13locking, powerpc: Annotate uic->lock as rawThomas Gleixner1-12/+12
uic->lock is protecting the interrupt controller hardware. This lock can not be preempted on -rt. In mainline this change documents the low level nature of the lock - otherwise there's no functional difference. Lockdep and Sparse checking will work as usual. Reported-by: Darcy L. Watkins <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-09-12block: remove support for bio remapping from ->make_requestChristoph Hellwig1-6/+2
There is very little benefit in allowing to let a ->make_request instance update the bios device and sector and loop around it in __generic_make_request when we can archive the same through calling generic_make_request from the driver and letting the loop in generic_make_request handle it. Note that various drivers got the return value from ->make_request and returned non-zero values for errors. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: NeilBrown <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2011-08-30Merge remote-tracking branch 'jwb/next' into nextBenjamin Herrenschmidt2-17/+84
2011-08-29Merge branch 'master' of ↵Florian Tobias Schandinat1-8/+17
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x into fbdev-next Conflicts: drivers/video/atmel_lcdfb.c
2011-08-25arch/powerpc/sysdev/fsl_rio.c: correct IECSR register clear valueLiu Gang-B341821-2/+3
This bug causes the IECSR register clear failure. In this case, the RETE (retry error threshold exceeded) interrupt will be generated and cannot be cleared. So the related ISR may be called persistently. The RETE bit in IECSR is cleared by writing a 1 to it. Signed-off-by: Liu Gang <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Kumar Gala <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-08-11powerpc/4xx: enable and fix pcie gen1/gen2 on the 460sxAyman El-Khashab2-17/+84
Adds a register to the config space for the 460sx. Changes the vc0 detect to a pll detect. maps configuration space to test the link status. changes the setup to enable gen2 devices to operate at gen2 speeds. fixes mapping that was not correct for the 460sx. added bit definitions for the OMRxMSKL registers. Removed reserved bit that was set incorrectly in the OMR2MSKL register. tested on the 460sx eiger and custom board Signed-off-by: Ayman El-Khashab <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
2011-08-05powerpc/4xx: Fix build of PCI code on 405Benjamin Herrenschmidt1-2/+3
Commit 112d1fe9f7715db423ffeec5ac1beccff6093dc4 "powerpc/4xx: Add check_link to struct ppc4xx_pciex_hwops" inadvertently broke 405 builds due to some functions being over protected by an ifdef CONFIG_44x. Move them back out. Signed-off-by: Benjamin Herrenschmidt <[email protected]>
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