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* [PATCH] powerpc: Fix some initcall return valuesAnton Blanchard2006-03-28
| | | | | | | | Non zero initcalls (except for -ENODEV) have started warning at boot. Fix smt_setup and init_ras_IRQ. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: fix __init/__exit annotationsArnd Bergmann2006-03-28
| | | | | | | | spufs_init and spufs_exit should be marked correctly so they can be removed when not needed. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: hvc_console updatesRyan S. Arnold2006-03-28
| | | | | | | | | | | | | | | | These are some updates from both Ryan and Arnd for the hvc_console driver: The main point is to enable the inclusion of a console driver for rtas, which is currrently needed for the cell platform. Also shuffle around some data-type declarations and moves some functions out of include/asm-ppc64/hvconsole.h and into a new drivers/char/hvc_console.h file. Signed-off-by: "Ryan S. Arnold" <rsa@us.ibm.com> Signed-off-by: Arnd Bergmann <abergman@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Rename and export ppc64_firmware_featuresMichael Ellerman2006-03-28
| | | | | | | | We need to export ppc64_firmware_features for modules. Before we do that I think we should probably rename it to powerpc_firmware_features. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix event-scan code for 32-bit CHRPPaul Mackerras2006-03-27
| | | | | | | | | | | | | | | On CHRP machines we are supposed to call into firmware (RTAS) periodically, to give it a chance to check for errors and other events. Under ppc we had some special code in timer_interrupt to do this, but that didn't get transferred over to arch/powerpc. Instead, we use an array of timer_list structs, one per CPU, and use add_timer_on to make sure each one gets called on the appropriate CPU. With this we can remove the heartbeat_* elements of the ppc_md struct. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Simplify pSeries idle loopPaul Mackerras2006-03-26
| | | | | | | | | | | | | | Since pSeries only wants to do something different in the idle loop when there is no work to do, we can simplify the code by implementing ppc_md.power_save functions instead of complete idle loops. There are two versions: one for shared-processor partitions and one for dedicated- processor partitions. With this we also do a cede_processor() call on dedicated processor partitions if the poll_pending() call indicates that the hypervisor has work it wants to do. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Unify the 32 and 64 bit idle loopsPaul Mackerras2006-03-26
| | | | | | | | | | This unifies the 32-bit (ARCH=ppc and ARCH=powerpc) and 64-bit idle loops. It brings over the concept of having a ppc_md.power_save function from 32-bit to ARCH=powerpc, which lets us get rid of native_idle(). With this we will also be able to simplify the idle handling for pSeries and cell. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Allow non zero boot cpuidsAnton Blanchard2006-03-26
| | | | | | | | | | | | | | | | | We currently have a hack to flip the boot cpu and its secondary thread to logical cpuid 0 and 1. This means the logical - physical mapping will differ depending on which cpu is boot cpu. This is most apparent on kexec, where we might kexec on any cpu and therefore change the mapping from boot to boot. The patch below does a first pass early on to work out the logical cpuid of the boot thread. We then fix up some paca structures to match. Ive also removed the boot_cpuid_phys variable for ppc64, to be consistent we use get_hard_smp_processor_id(boot_cpuid) everywhere. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc/pseries: Cleanup device name printing.Linas Vepstas2006-03-26
| | | | | | | This avoids printk'ing a NULL string. Signed-off-by: Linas Vepstas <linas@linas.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: Fix endless protection fault on LS writes by SPE.Arnd Bergmann2006-03-26
| | | | | | | | | | | If an SPE attempts a DMA put to a local store after already doing a get, the kernel must update the HW PTE to allow the write access. This case was not being handled correctly. From: Mike Kistler <mkistler@us.ibm.com> Signed-off-by: Mike Kistler <mkistler@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: use guarded ioremap for cell on-chip mappingsArnd Bergmann2006-03-26
| | | | | | | | | | | | I'm not sure where the information came from, but I assumed that doing cache-inhibited mappings for mmio regions was sufficient. It seems we also need the guarded bit set, like everyone else, which is the default for ioremap. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: fix spider-pic affinity settingArnd Bergmann2006-03-26
| | | | | | | | | As noticed by Milton Miller, setting the initial affinity in spider-pic can go wrong if the target node field was not orinally empty. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: dynamic probe - use ppc_md.pci_probe_mode()John Rose2006-03-26
| | | | | | | | Change the dynamic PCI probe function for pSeries to use ppc_md.pci_probe_mode() when appropriate. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: initialize context correctlyDirk Herrendoerfer2006-03-26
| | | | | | | | the mfc member of a new context was not initialized to zero, which potentially leads to wild memory accesses. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: enable SPE problem state MMIO access.Mark Nutter2006-03-26
| | | | | | | | | | | | | | | | | | | | | | | This patch is layered on top of CONFIG_SPARSEMEM and is patterned after direct mapping of LS. This patch allows mmap() of the following regions: "mfc", which represents the area from [0x3000 - 0x3fff]; "cntl", which represents the area from [0x4000 - 0x4fff]; "signal1" which begins at offset 0x14000; "signal2" which begins at offset 0x1c000. The signal1 & signal2 files may be mmap()'d by regular user processes. The cntl and mfc file, on the other hand, may only be accessed if the owning process has CAP_SYS_RAWIO, because they have the potential to confuse the kernel with regard to parallel access to the same files with regular file operations: the kernel always holds a spinlock when accessing registers in these areas to serialize them, which can not be guaranteed with user mmaps, Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: implement mfc access for PPE-side DMAArnd Bergmann2006-03-26
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new file called 'mfc' to each spufs directory. The file accepts DMA commands that are a subset of what would be legal DMA commands for problem state register access. Upon reading the file, a bitmask is returned with the completed tag groups set. The file is meant to be used from an abstraction in libspe that is added by a different patch. From the kernel perspective, this means a process can now offload a memory copy from or into an SPE local store without having to run code on the SPE itself. The transfer will only be performed while the SPE is owned by one thread that is waiting in the spu_run system call and the data will be transferred into that thread's address space, independent of which thread started the transfer. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: allow SPU code to do syscallsArnd Bergmann2006-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | An SPU does not have a way to implement system calls itself, but it can create intercepts to the kernel. This patch uses the method defined by the JSRE interface for C99 host library calls from an SPU to implement Linux system calls. It uses the reserved SPU stop code 0x2104 for this, using the structure layout and syscall numbers for ppc64-linux. I'm still undecided wether it is better to have a list of allowed syscalls or a list of forbidden syscalls, since we can't allow an SPU to call all syscalls that are defined for ppc64-linux. This patch implements the easier choice of them, with a blacklist that only prevents an SPU from calling anything that interacts with its own execution, e.g fork, execve, clone, vfork, exit, spu_run and spu_create and everything that deals with signals. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: work around a cell interrupt HW bugArnd Bergmann2006-03-26
| | | | | | | | | Apparently we have found a bug in the CPU that causes external interrupts to sometimes get disabled indefinitely. This adds a workaround for the problem. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: cell interrupt controller updatesJens Osterkamp2006-03-26
| | | | | | | | | | | | | | | | | | | | | The current interrupt controller setup on Cell is done in a rather ad-hoc way with device tree properties that are not standardized at all. In an attempt to do something that follows the OF standard (or at least the IBM extensions to it) more closely, we have now come up with this patch. It still provides a fallback to the old behaviour when we find older firmware, that hack can not be removed until the existing customer installations have upgraded. Cc: hpenner@de.ibm.com Cc: stk@de.ibm.com Cc: Segher Boessenkool <segher@kernel.crashing.org> Cc: Milton Miller <miltonm@bga.com> Cc: benh@kernel.crashing.org Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: fix cell iommu setupArnd Bergmann2006-03-26
| | | | | | | | | A small bug crept in the iommu driver when we made it more generic. This patch is needed for boards that have a dma window that does not start at bus address zero. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: fix various sparse warningsStephen Rothwell2006-03-26
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] sem2mutex: misc static one-file mutexesIngo Molnar2006-03-26
| | | | | | | | | | | | | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Paul Mackerras <paulus@samba.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jens Axboe <axboe@suse.de> Cc: Neil Brown <neilb@cse.unsw.edu.au> Acked-by: Alasdair G Kergon <agk@redhat.com> Cc: Greg KH <greg@kroah.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] more for_each_cpu() conversionsAndrew Morton2006-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we stop allocating percpu memory for not-possible CPUs we must not touch the percpu data for not-possible CPUs at all. The correct way of doing this is to test cpu_possible() or to use for_each_cpu(). This patch is a kernel-wide sweep of all instances of NR_CPUS. I found very few instances of this bug, if any. But the patch converts lots of open-coded test to use the preferred helper macros. Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Acked-by: Kyle McMartin <kyle@parisc-linux.org> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: Andi Kleen <ak@muc.de> Cc: Christian Zankel <chris@zankel.net> Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: Nathan Scott <nathans@sgi.com> Cc: Jens Axboe <axboe@suse.de> Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds2006-03-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (78 commits) [PATCH] powerpc: Add FSL SEC node to documentation [PATCH] macintosh: tidy-up driver_register() return values [PATCH] powerpc: tidy-up of_register_driver()/driver_register() return values [PATCH] powerpc: via-pmu warning fix [PATCH] macintosh: cleanup the use of i2c headers [PATCH] powerpc: dont allow old RTC to be selected [PATCH] powerpc: make powerbook_sleep_grackle static [PATCH] powerpc: Fix warning in add_memory [PATCH] powerpc: update mailing list addresses [PATCH] powerpc: Remove calculation of io hole [PATCH] powerpc: iseries: Add bootargs to /chosen [PATCH] powerpc: iseries: Add /system-id, /model and /compatible [PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCII [PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.c [PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt) [PATCH] powerpc: iseries: mf related cleanups [PATCH] powerpc: Replace platform_is_lpar() with a firmware feature [PATCH] powerpc: trivial: Cleanup whitespace in cputable.h [PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early() [PATCH] powerpc: Unconfuse htab_bolt_mapping() callers ...
| * [PATCH] powerpc: iseries: Add bootargs to /chosenMichael Ellerman2006-03-21
| | | | | | | | | | | | | | Add the command line args to the device tree as /chosen/bootargs. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Add /system-id, /model and /compatibleMichael Ellerman2006-03-21
| | | | | | | | | | | | | | Add /system-id, /model and /compatible to the iSeries device tree. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.cMichael Ellerman2006-03-21
| | | | | | | | | | | | | | | | Make mf_get_rtc(), mf_get_boot_rtc() and mf_set_rtc() static, cause they can be. We need to move mf_set_rtc() to avoid a forward declaration. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt)Michael Ellerman2006-03-21
| | | | | | | | | | | | | | | | | | These routines just call through to the mf routines, so point ppc_md straight at the mf routines. We need to pass the cmd through to mf_reboot to make it work, but that seems reasonable. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: mf related cleanupsMichael Ellerman2006-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some cleanups in the iSeries code. - Make mf_display_progress() check mf_initialized rather than the caller. - Set mf_initialized in mf_init() rather than in setup.c - Then move mf_initialized into mf.c, the only place it's used. - Move the mf related logic from iSeries_progress() to mf_display_progress() - Use a #define to size the pending_event_prealloc array - Use that define in the initialsation loop rather than sizeof jiggery pokery - Remove stupid comment(s) - Mark stuff static and/or __init Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Replace platform_is_lpar() with a firmware featureMichael Ellerman2006-03-21
| | | | | | | | | | | | | | | | | | | | | | | | It has been decreed that platform numbers are evil, so as a step in that direction, replace platform_is_lpar() with a FW_FEATURE_LPAR bit. Currently FW_FEATURE_LPAR really means i/pSeries LPAR, in the future we might have to clean that up if we need to be more specific about what LPAR actually means. But that's another patch ... Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early()Michael Ellerman2006-03-21
| | | | | | | | | | | | | | | | | | | | When iommu_init_early_pSeries() was added, ages ago, we forgot to remove the code that checks /chosen/linux,iommu-off in pSeries_init_early(). We do it now in iommu_init_early_pSeries(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch '85xx' of ↵Paul Mackerras2006-03-21
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
| | * Merge branch 'master'Kumar Gala2006-03-20
| | |\
| | * \ Merge branch 'master' of ↵Kumar Gala2006-02-28
| | |\ \ | | | | | | | | | | | | | | | git+ssh://galak@master.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
| | * | | powerpc: Add PCI support for 8540 ADS to powerpc treeAndy Fleming2006-02-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add PCI support for setting PCI from flat device tree on 85xx specifically for MPC8540 ADS. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | | Merge branch 'master'Kumar Gala2006-03-20
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| | * | | Merge ../linux-2.6Paul Mackerras2006-03-16
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| | * \ \ \ Merge ../linux-2.6Paul Mackerras2006-03-08
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| | * | | | Merge ../powerpc-mergePaul Mackerras2006-02-28
| | |\ \ \ \
| | * \ \ \ \ Merge ../powerpc-mergePaul Mackerras2006-02-23
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| * / | | | | powerpc: Fix mpc83xx restart bugKumar Gala2006-02-16
| |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to write the correct value to the RCR to get a HW reset. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | | | [PATCH] powerpc: trivial: modify comments to refer to new location of filesJon Mason2006-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes all self references and fixes references to files in the now defunct arch/ppc64 tree. I think this accomplises everything wanted, though there might be a few references I missed. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | | [PATCH] powerpc: Move pSeries firmware feature setup into platforms/pseriesMichael Ellerman2006-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we have some stuff in firmware.h and kernel/firmware.c that is #ifdef CONFIG_PPC_PSERIES. Move it all into platforms/pseries. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | | [PATCH] powerpc: Clean up pSeries firmware feature initialisationMichael Ellerman2006-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up fw_feature_init in platforms/pseries/setup.c. Clean up white space and replace the while loop with a for loop - which seems clearer to me. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | | [PATCH] powerpc: lindent 85xx platform codeBecky Bruce2006-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ran arch/powerpc/platforms/85xx through Lindent Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | | [PATCH] powerpc: rename mpc85xx.c to misc.cBecky Bruce2006-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename mpc85xx.c to misc.c to match the pattern established by the 8349 port - consistency is a good thing. Also run Lindent on the file to clean it up. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | | [PATCH] powerpc: mpc85xx_ads.c include file cleanupBecky Bruce2006-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cut-and-paste from the old platform code in arch/ppc resulted in arch/powerpc/platforms/85xx/mpc85xx_ads.c having way too many header files included. Clean this up. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | | Merge ../powerpc-mergePaul Mackerras2006-02-10
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| * \ \ \ \ \ Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcPaul Mackerras2006-02-07
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| | * | | | | | [PATCH] powerpc: Lindent platforms/83xxKumar Gala2006-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ran arch/powerpc/platforms/83xx through Lindent Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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