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* [POWERPC] Fix MAC address entries for 83xx, 85xx, and 86xx device treesTimur Tabi2007-07-0312-31/+174
| | | | | | | | | | | For the 83xx, 85xx, and 86xx device trees, add a "local-mac-address" property to every Ethernet node that didn't have one. Add a comment indicating that the "address" and/or "mac-address" properties are deprecated in DTS files and will be removed at a later time. Change all MAC address properties to have a zero MAC address value. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] qe_lib: export symbols for QE driver to compile as moduleLi Yang2007-07-032-0/+10
| | | | | | | | Export symbols of qe_lib to be used by QE driver. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Selvamuthukumar V <vsmkumar.84@gmail.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 85xx: Fix 8548CDS reset bugRoy Zang2007-07-032-0/+38
| | | | | | | | | | Begin with MPC8548 a new reset control register is added that asserts HRESET_REQ to board logic. This register is used for chip reset. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] spufs: Save dma_tagstatus_R in CSAKazunori Asayama2007-07-032-0/+20
| | | | | | | | | | The function backing_ops->read_mfc_tagstatus() doesn't return a correct value because the dma_tagstatus_R register isn't saved in CSA. This fixes the problem. Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Fix lost events in poll/epoll on mfcKazunori Asayama2007-07-031-4/+5
| | | | | | | | | | | | When waiting for I/O events on mfc in an SPU context by using poll/epoll syscalls, some of the events can be lost because of wrong order of poll_wait and MFC status checks in the spufs_mfc_poll function and non-atomic update of tagwait. This fixes the problem. Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Add spu stats in sysfsChristoph Hellwig2007-07-035-2/+78
| | | | | | | | | Export spu statistics in sysfs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Fix runqueue corruptionChristoph Hellwig2007-07-031-9/+28
| | | | | | | | | | spu_activate can be called from multiple threads at the same time on behalf of the same spu context. We need to make sure to only add it once to avoid runqueue corruption. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Disable tick when not neededChristoph Hellwig2007-07-031-8/+10
| | | | | | | | | Only enable the scheduler tick if we have any context waiting to be scheduled. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Fix libassist accountingJeremy Kerr2007-07-031-1/+1
| | | | | | | | We're currently too permissive with counting libassist calls - fix the check on the SPE stop-and-signal status. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Add stat file to spufsChristoph Hellwig2007-07-037-5/+172
| | | | | | | | | Export per-context statistics in spufs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Implement /proc/spu_loadavgChristoph Hellwig2007-07-033-8/+127
| | | | | | | | | | | Provide load average information for spu context. The format is identical to /proc/loadavg, which is also where a lot of code and concepts is borrowed from. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Add tid fileChristoph Hellwig2007-07-033-0/+32
| | | | | | | | | | | The new tid file contains the ID of the thread currently running the context, if any. This is used so that the new spu-top and spu-ps tools can find the thread in /proc. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Trivial whitespace fixesJeremy Kerr2007-07-035-12/+12
| | | | | | | Remove redundant whitespace in arch/powerpc/platforms/cell/spufs/ Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Remove spufs_dir_inode_operationsJeremy Kerr2007-07-031-7/+3
| | | | | | | | | spufs_dir_inode_operations is exactly the same as simple_dir_inode_operations. Use that instead. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: No preemption for nosched contextsChristoph Hellwig2007-07-031-1/+6
| | | | | | | | | | And last but not least we need to make sure the scheduler tick never preempts a nosched context. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Catch nosched contexts in spu_deactivateChristoph Hellwig2007-07-031-0/+9
| | | | | | | | | | | spu_deactivate should never be called for nosched contets. Put in a check so we can print a stacktrace and exit early in case it happes erroneously. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: fix cpu/node bindingChristoph Hellwig2007-07-033-22/+52
| | | | | | | | | | | | Add a cpus_allowed allowed filed to struct spu_context so that we always use the cpu mask of the owning thread instead of the one happening to call into the scheduler. Also use this information in grab_runnable_context to avoid spurious wakeups. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Update scheduling paramters on every spu_runChristoph Hellwig2007-07-034-14/+45
| | | | | | | | | | | | | | | | Update scheduling information on every spu_run to allow for setting threads to realtime priority just before running them. This requires some slightly ugly code in spufs_run_spu because we can just update the information unlocked if the spu is not runnable, but we need to acquire the active_mutex when it is runnable to protect against find_victim. This locking scheme requires opencoding spu_acquire_runnable in spufs_run_spu which actually is a nice cleanup all by itself. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Print out scheduling tunables with DEBUGJeremy Kerr2007-07-031-0/+3
| | | | | | | | Print out a few scheduler tuning parameters when we've compiled with DEBUG defined. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Fix timeslice calculationsJeremy Kerr2007-07-031-4/+4
| | | | | | | | | | | | The current timeslice code mixes 'jiffies' up with 'spesched ticks'. This change correctly defines the number of time slices each SPE contexts is given, and clarifies the comment. This brings the default timeslice for SPE contexts into a reasonable range. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Dynamic timeslicing for SCHED_OTHERChristoph Hellwig2007-07-033-15/+58
| | | | | | | | | | | | | | | | | | | Enable preemptive scheduling for non-RT contexts. We use the same algorithms as the CPU scheduler to calculate the time slice length, and for now we also use the same timeslice length as the CPU scheduler. This might be not enough for good performance and can be changed after some benchmarking. Note that currently we do not boost the priority for contexts waiting on the runqueue for a long time, so contexts with a higher nice value could starve ones with less priority. This could easily be fixed once the rework of the spu lists that Luke and I discussed is done. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spusched: Switch from workqueues to kthread + timer tickChristoph Hellwig2007-07-034-76/+86
| | | | | | | | | | | | | | | Get rid of the scheduler workqueues that complicated things a lot to a dedicated spu scheduler thread that gets woken by a traditional scheduler tick. By default this scheduler tick runs a HZ * 10, aka one spu scheduler tick for every 10 cpu ticks. Currently the tick is not disabled when we have less context than available spus, but I will implement this later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: Add bit definitionSebastian Siewior2007-07-031-1/+2
| | | | | | | | | Add a bit define from book, and replace one hex number with a symbol, for clarity. Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] spufs: fix building spufs/spu_save_dump.hSebastian Siewior2007-07-031-1/+1
| | | | | | | | | | | Currently it fails with gcc from sdk 2.1 because of a spec change [1]. Maybe we should start using the definitions from spu_mfcio.h. [1] http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01598.html Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add copyright header to pci-common.c based on pci_{32,64}.cKumar Gala2007-06-291-0/+9
| | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Use ppc64 style list management for pci_controller on ppc32Kumar Gala2007-06-293-117/+88
| | | | | | | | Use the ppc64 style list management and allocation functions for pci_controllers. This makes the pci_controller structs just a bit more common between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Move common PCI code out of pci_32/pci_64Kumar Gala2007-06-293-603/+314
| | | | | | | Moved the low hanging fruit that was either identical or close to it between ppc32 & ppc64 for PCI into pci-common.c Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Move pci_bus_to_hose users to pci_bus_to_hostKumar Gala2007-06-293-6/+5
| | | | | | | In the places we can move to using pci_bus_to_host, this allows us to make pci_bus_to_host static and remove its export. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Merge ppc32 and ppc64 pcibios_alloc_controller() prototypesKumar Gala2007-06-2912-30/+13
| | | | | | | Make the ppc32 pcibios_alloc_controller take a device node to match the ppc64 prototypes and have it set arch_data. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Use global_number in ppc32 pci_controllerKumar Gala2007-06-296-24/+61
| | | | | | | | | Make the pci_controller struct use global_number for the PHB domain number instead of index to match what ppc64 does and reuse its pci_domain_nr code. Introduced a pci-common.c to handle shared code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Removed dead code related to PCI on ppc32Kumar Gala2007-06-292-115/+0
| | | | | | | | | | | | | | | | | There are no in kernel users of any off these functions and some of them were not even EXPORT_SYMBOL: - pci_bus_io_base() - pci_bus_io_base_phys() - pci_bus_mem_base_phys() - pci_resource_to_bus() - phys_to_bus() - pci_phys_to_bus() - pci_bus_to_phys() - pci_init_resource() - resource_fixup() Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove local_number from pci_controllerKumar Gala2007-06-291-1/+1
| | | | | | We never actually read local_number so lets just remove it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 86xx: Created quirk_fsl_pcie_transparent() to initialize bridge ↵Zhang Wei2007-06-291-0/+37
| | | | | | | | | | | | | | | | | | | resources. The Freescale PCI-e RC poses as a transparent bridge, but does not implement the IO_BASE or IO_LIMIT registers in the config space. This means that the code which initializes the bridge resources ends up setting the IO resources erroneously. Add quick_fsl_pcie_transparent() to handle this. This change sets RC of mpc8641 to be a transparent bridge for legacy I/O access and initializes the RC bridge resources from the device tree. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Let subordinate transparent bridges be transparent.York Sun2007-06-291-1/+1
| | | | | | | | | | | | | | | In pcibios_fixup_bus(), bridges that are subordinate to transparent bridges were still relocating their IORESOURCE_IO and IO_RESOURCE_MEM start and end values. Fix this by preventing the transparent bridge from relocating the start and end values, thus allowing the subordinate non-transparent bridge full molestation rights. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] MPC8641HPCN: Set IDE in ULI1575 to not native mode.Zhang Wei2007-06-291-0/+1
| | | | | | | | Set IDE in ULI1575 to not 100% native mode, which forces the IDE driver to probe the irq itself. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 86xx: Workaround PCI_PRIMARY_BUS usageKumar Gala2007-06-292-1/+9
| | | | | | | | | | | | | | | The Freescale PCI-e controllers have an issue in that they use the PCI_PRIMARY_BUS register in the virtual P2P bridge to determine which bus number to match on when generating a type 0 config cycle. The issue is if we are renumbering bus numbers to match Linux we will try setting the PCI_PRIMARY_BUS and will not know which bus number to use for generating type 0 config cycles. We surpress writing the register in the P2P bridge and always keep it at zero. In the future when proper PCI domain support is working we should be able to remove this. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 86xx: Avoid system halt if link training isn't at least L0.Zhang Wei2007-06-291-1/+10
| | | | | | | | | We check the Link Training and State Status register to make sure we are at least at the L0 state. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Acked-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Added indirect_type to handle variants of PCI opsKumar Gala2007-06-291-6/+16
| | | | | | | | | | | | The generic PCI config ops indirect support for ppc32 covers only two cases (implicit vs explicit) type 0/1 config cycles via set_cfg_type. Added a indirect_type bit mask to handle other variants. Added support for PCI-e extended registers and moved the cfg_type handling into the bit mask for ARCH=powerpc. We can also use this to handle indirect quirks. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 86xx: Add uli1575 pci-bridge sector to MPC8641HPCN dts file.Wade Farnsworth2007-06-291-13/+84
| | | | | | | | | | This adds device nodes for the PCI bridges as well as the ISA devices on the newer revision MPC8641HPCN. It also adds the PCI ranges to the soc node so that address translation for the ISA devices works properly. Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com> Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove PCI-e errata for MPC8641 silicon ver 1.0Zhang Wei2007-06-298-202/+3
| | | | | | | | | Remove errata for PCI-e support of Rev 1.0 of MPC8641 since its considered obselete and is not production level silicon from Freescale. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Acked-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Removed remnants of bus_offsetKumar Gala2007-06-294-5/+5
| | | | | | | | | | | Removed the remants of bus_offset and use self_busno in the mv64x60 case and use pci_assign_all_buses on 83xx/85xx. 83xx/85xx have multiple PHBs and the firmwares on these devices tend not to handle topologies with P2P bridges well so we let Linux just reassign the bus numbers to match. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Added self_busno to indicate which bus number the PHB isKumar Gala2007-06-291-2/+10
| | | | | | | | | Added self_busno to pci_controller and indirect PCI ops to be set by board code to indicate which bus number to use when talking to the PHB. By default we use zero since the majority of controllers that have implicit mechanisms to talk to the PHBs use a bus number of zero. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove bus_offset in places its not really usedKumar Gala2007-06-292-5/+4
| | | | | | | | The user of the fsl_pcie code doesn't set bus_offset and 82xx doesn't require it either. Remove the places in the code that reference it so we can remove it all together. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove hack to determine the 2nd PHBs bus numberKumar Gala2007-06-293-16/+2
| | | | | | | | | Now that we have the pci_controller in the exclude function we can easy figure out if the bus number is the PHB or not. The old style of using a variable setup at init time was actually broken and would only work in specific cases. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Pass the pci_controller into pci_exclude_deviceKumar Gala2007-06-2916-20/+164
| | | | | | | | | | There are times that we need to know which controller we are on to decide how to exclude devices properly. We now pass the pci_controller that we are going to use down to the pci_exclude_device function. This will greatly simplify being able to exclude the PHBs in multiple controller setups. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 52xx: Remove support for PCI bus_offsetKumar Gala2007-06-291-5/+4
| | | | | | | The hose->bus_offset is only used for PCI config cycles and the 52xx PCI config code doesn't actually ever set bus_offset to a non-zero value. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove set_cfg_type for PCI indirect users that don't need itKumar Gala2007-06-297-9/+0
| | | | | | | | | | | The Freescale and Marvell PCI controllers dont require explicit setting for type 1 config cycles. They handle producing them by implicitly looking at the bus, devfn. The TSI108 and 52xx don't use the generic PCI indirect code and thus don't bother with set_cfg_type. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] disallow building powermac and tsi108 without PCIArnd Bergmann2007-06-295-3/+5
| | | | | | | | | | | The TSI108 code and the 32 bit powermac and chrp platforms have dependency on PCI that is not easy or desirable to get rid of. The easiest fix is to always select CONFIG_PCI if one of those platforms is enabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* [POWERPC] fix building without PCIArnd Bergmann2007-06-292-1/+4
| | | | | | | Some code looks can be configured to be built without PCI support, but does not work properly. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* [POWERPC] kill isa_{io,mem}_base definitions for !PCIArnd Bergmann2007-06-2912-63/+0
| | | | | | | | | | | When CONFIG_PCI is disabled, the definitions for isa_io_base, isa_mem_base and pci_dram_offset are entirely unused, but they can result in link failure because they are defined in multiple places. The easiest fix is to just remove all these definitions. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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