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* [SPARC64]: Virtualize IRQ numbers.David S. Miller2006-06-20
| | | | | | | | | | | | | | | | | | | | | | | | | Inspired by PowerPC XICS interrupt support code. All IRQs are virtualized in order to keep NR_IRQS from needing to be too large. Interrupts on sparc64 are arbitrary 11-bit values, but we don't need to define NR_IRQS to 2048 if we virtualize the IRQs. As PCI and SBUS controller drivers build device IRQs, we divy out virtual IRQ numbers incrementally starting at 1. Zero is a special virtual IRQ used for the timer interrupt. So device drivers all see virtual IRQs, and all the normal interfaces such as request_irq(), enable_irq(), etc. translate that into a real IRQ number in order to configure the IRQ. At this point knowledge of the struct ino_bucket is almost entirely contained within arch/sparc64/kernel/irq.c There are a few small bits in the PCI controller drivers that need to be swept away before we can remove ino_bucket's definition out of asm-sparc64/irq.h and privately into kernel/irq.c Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Kill ino_bucket->pilDavid S. Miller2006-06-20
| | | | | | | | | | | And reuse that struct member for virt_irq, which will be used in future changesets for the implementation of mapping between real and virtual IRQ numbers. This nicely kills off a ton of SBUS and PCI controller PIL assignment code which is no longer necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Kill __irq_itoa().David S. Miller2006-06-20
| | | | | | | | | | | | | | | | | | This ugly hack was long overdue to die. It was a way to print out Sparc interrupts in a more freindly format, since IRQ numbers were arbitrary opaque 32-bit integers which vectored into PIL levels. These 32-bit integers were not necessarily in the 0-->NR_IRQS range, but the PILs they vectored to were. The idea now is that we will increase NR_IRQS a little bit and use a virtual<-->real IRQ number mapping scheme similar to PowerPC. That makes this IRQ printing hack irrelevant, and furthermore only a handful of drivers actually used __irq_itoa() making it even less useful. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Send all device interrupts via one PIL.David S. Miller2006-06-20
| | | | | | | | | | | | | | | | | | This is the first in a series of cleanups that will hopefully allow a seamless attempt at using the generic IRQ handling infrastructure in the Linux kernel. Define PIL_DEVICE_IRQ and vector all device interrupts through there. Get rid of the ugly pil0_dummy_{bucket,desc}, instead vector the timer interrupt directly to a specific handler since the timer interrupt is the only event that will be signaled on PIL 14. The irq_worklist is now in the per-cpu trap_block[]. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Add missing rw can_lock macrosBob Breuer2006-06-20
| | | | | | | | Fix a link failure by adding the missing can_lock macros for the rw locks. Signed-off-by: Bob Breuer <breuerr@mc.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Setup cpu_possible_mapBob Breuer2006-06-20
| | | | | | | Setup cpu_possible_map so the secondary cpus will get started. Signed-off-by: Bob Breuer <breuerr@mc.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2006-06-19
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (51 commits) [MIPS] Make timer interrupt frequency configurable from kconfig. [MIPS] Correct HAL2 Kconfig description [MIPS] Fix R4K cache macro names [MIPS] Add Missing R4K Cache Macros to IP27 & IP32 [MIPS] Support for the RM9000-based Basler eXcite smart camera platform. [MIPS] Support for the R5500-based NEC EMMA2RH Mark-eins board [MIPS] Support SNI RM200C SNI in big endian mode and R5000 processors. [MIPS] SN: include asm/sn/types.h for nasid_t. [MIPS] Random fixes for sb1250 [MIPS] Fix bcm1480 compile [MIPS] Remove support for NEC DDB5476. [MIPS] Remove support for NEC DDB5074. [MIPS] Cleanup memory managment initialization. [MIPS] SN: Declare bridge_pci_ops. [MIPS] Remove unused function alloc_pci_controller. [MIPS] IP27: Extract pci_ops into separate file. [MIPS] IP27: Use symbolic constants instead of magic numbers. [MIPS] vr41xx: remove unnecessay items from vr41xx/Kconfig. [MIPS] IP27: Cleanup N/M mode configuration. [MIPS] IP27: Throw away old unused hacks. ...
| * [MIPS] Make timer interrupt frequency configurable from kconfig.Atsushi Nemoto2006-06-19
| | | | | | | | | | | | | | | | | | | | Make HZ configurable. DECSTATION can select 128/256/1024 HZ, JAZZ can only select 100 HZ, others can select 100/128/250/256/1000/1024 HZ if not explicitly specified). Also remove all mach-xxx/param.h files and update all defconfigs according to current HZ value. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix R4K cache macro namesKumba2006-06-19
| | | | | | | | | | | | | | | | Several machines have the R4K cache macro name spelled incorrectly. Namely, they have cpu_has_4kcache defined instead of cpu_has_4k_cache. Signed-off-by: Joshua Kinard <kumba@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Add Missing R4K Cache Macros to IP27 & IP32Kumba2006-06-19
| | | | | | | | | | | | | | | | | | Keeping in accordance with other machines, IP27 and IP32 lack a few macros. IP27 lacks cpu_has_4kex & cpu_has_4k_cache macros while IP32 lacks just the cpu_has_4k_cache macro. Signed-off-by: Joshua Kinard <kumba@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Support for the RM9000-based Basler eXcite smart camera platform.Ralf Baechle2006-06-19
| | | | | | | | | | Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Support for the R5500-based NEC EMMA2RH Mark-eins boarddmitry pervushin2006-06-19
| | | | | | | | | | Signed-off-by: dmitry pervushin <dpervushin@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Support SNI RM200C SNI in big endian mode and R5000 processors.Thomas Bogendoerfer2006-06-19
| | | | | | | | | | | | | | | | | | Added support for RM200C machines with big endian firmware Added support for RM200-C40 (R5000 support) Signed-off-by: Florian Lohoff <flo@rfc822.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] SN: include asm/sn/types.h for nasid_t.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Remove support for NEC DDB5476.Ralf Baechle2006-06-19
| | | | | | | | | | | | As warned several times before. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Remove support for NEC DDB5074.Ralf Baechle2006-06-19
| | | | | | | | | | | | As warned several times before. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Cleanup memory managment initialization.Ralf Baechle2006-06-19
| | | | | | | | | | | | | | | | | | | | Historically plat_mem_setup did the entire platform initialization. This was rather impractical because it meant plat_mem_setup had to get away without any kind of memory allocator. To keep old code from breaking plat_setup was just renamed to plat_setup and a second platform initialization hook for anything else was introduced. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] SN: Declare bridge_pci_ops.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Cleanup N/M mode configuration.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Throw away old unused hacks.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Drop 0 definition for kern_addr_validRalf Baechle2006-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | kern_addr_valid is currently only being used in kmem_ptr_validate which is making some vague attempt at verfying the validity of an address. Only IA-64, PARISC and x86-64 actually make some actual effort to verify the validity of the pointer. Most architecture definitions of kern_addr_valid() just define it as 1; the Alpha and CONFIG_DISCONTIGMEM on i386 and MIPS even as 0; the 0-definition will result in kmem_ptr_validate always failing which in turn will cause d_validate to always fail. d_validate's only two users are smbfs and ncpfs, so the 0 definition ended breaking those ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Consolidate definitions of pfn_valid in one file.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] APM emu supportRodolfo Giometti2006-06-19
| | | | | | | | | | Signed-off-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] SN: Rename SGI_SN0_N_MODE -> SGI_SN_N_MODE.Ralf Baechle2006-06-19
| | | | | | | | | | | | It's not SN0-specific. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] SN: Move FRU header one level up; it is not SN0-specific.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Remove #if 0'ed code.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Nuke leftovers of _STANDALONERalf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Remove leftovers of sable support.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Nuke last leftovers from FRUTESTRalf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Nuke last leftovers of CONFIG_SGI_IO.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Cleanup __emt() a bit.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Remove unused definitions from addrspace.h.Yoichi Yuasa2006-06-19
| | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Qemu system shutdown supportThiemo Seufer2006-06-19
| | | | | | | | | | Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs.Atsushi Nemoto2006-06-19
| | | | | | | | | | | | | | | | | | The struct mips_fpu_soft_struct and mips_fpu_hard_struct are completely same now and the kernel fpu emulator assumes that. This patch unifies them to mips_fpu_struct and get rid of mips_fpu_union. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Wind River 4KC PPMC Eval Board SupportMark.Zhan2006-06-19
| | | | | | | | | | | | | | Support for the GT-64120-based Wind River 4KC PPMC Evaluation board. Signed-off-by: Rongkai.Zhan <Rongkai.zhan@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix futex_atomic_op_inuser.Atsushi Nemoto2006-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | I found that NPTL's pthread_cond_signal() does not work properly on kernels compiled by gcc 4.1.x. I suppose inline asm for __futex_atomic_op() was wrong. I suppose: 1. "=&r" constraint should be used for oldval. 2. Instead of "r" (uaddr), "=R" (*uaddr) for output and "R" (*uaddr) for input should be used. 3. "memory" should be added to the clobber list. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix fpu_save_double on 64-bit.Atsushi Nemoto2006-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > Without this fix, _save_fp() in 64-bit kernel is seriously broken. > > ffffffff8010bec0 <_save_fp>: > ffffffff8010bec0: 400d6000 mfc0 t1,c0_status > ffffffff8010bec4: 000c7140 sll t2,t0,0x5 > ffffffff8010bec8: 05c10011 bgez t2,ffffffff8010bf10 <_save_fp+0x50> > ffffffff8010becc: 00000000 nop > ffffffff8010bed0: f4810328 sdc1 $f1,808(a0) > ... Fix register usage in fpu_save_double() and make fpu_restore_double() more symmetric with fpu_save_double(). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2006-06-19
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (46 commits) IB/uverbs: Don't serialize with ib_uverbs_idr_mutex IB/mthca: Make all device methods truly reentrant IB/mthca: Fix memory leak on modify_qp error paths IB/uverbs: Factor out common idr code IB/uverbs: Don't decrement usecnt on error paths IB/uverbs: Release lock on error path IB/cm: Use address handle helpers IB/sa: Add ib_init_ah_from_path() IB: Add ib_init_ah_from_wc() IB/ucm: Get rid of duplicate P_Key parameter IB/srp: Factor out common request reset code IB/srp: Support SRP rev. 10 targets [SCSI] srp.h: Add I/O Class values IB/fmr: Use device's max_map_map_per_fmr attribute in FMR pool. IB/mthca: Fill in max_map_per_fmr device attribute IB/ipath: Add client reregister event generation IB/mthca: Add client reregister event generation IB: Move struct port_info from ipath to <rdma/ib_smi.h> IPoIB: Handle client reregister events IB: Add client reregister event type ...
| * | IB/uverbs: Don't serialize with ib_uverbs_idr_mutexRoland Dreier2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, all userspace verbs operations that call into the kernel are serialized by ib_uverbs_idr_mutex. This can be a scalability issue for some workloads, especially for devices driven by the ipath driver, which needs to call into the kernel even for datapath operations. Fix this by adding reference counts to the userspace objects, and then converting ib_uverbs_idr_mutex into a spinlock that only protects the idrs long enough to take a reference on the object being looked up. Because remove operations may fail, we have to do a slightly funky two-step deletion, which is described in the comments at the top of uverbs_cmd.c. This also still leaves ib_uverbs_idr_lock as a single lock that is possibly subject to contention. However, the lock hold time will only be a single idr operation, so multiple threads should still be able to make progress, even if ib_uverbs_idr_lock is being ping-ponged. Surprisingly, these changes even shrink the object code: add/remove: 23/5 grow/shrink: 4/21 up/down: 633/-693 (-60) Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB/sa: Add ib_init_ah_from_path()Sean Hefty2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | Add a call to initialize address handle attributes given a path record. This is used by the CM, and would be useful for users of UD QPs. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: Add ib_init_ah_from_wc()Sean Hefty2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | Add a function to initialize address handle attributes from a work completion. This functionality is duplicated by both verbs and the CM. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB/ucm: Get rid of duplicate P_Key parameterSean Hefty2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The P_Key is provided into a SIDR REQ in two places, once as a parameter, and again in the path record. Remove the P_Key as a parameter and always use the one given in the path record. This change has no practical effect on ABI functionality. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [SCSI] srp.h: Add I/O Class valuesRamachandra K2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add enum values for I/O Class values from rev. 10 and rev. 16a SRP drafts. The values are used to detect targets that implement obsolete revisions of SRP, so that the initiator can use the old format for port identifier when connecting to them. Signed-off-by: Ramachandra K <rkuchimanchi@silverstorm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: Move struct port_info from ipath to <rdma/ib_smi.h>Leonid Arsh2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move ipath's struct port_info into <rdma/ib_smi.h>, so that it can be used by mthca to implement client reregister support. Remove the __attribute__((packed)) because all the members of the struct are naturally aligned anyway. Signed-off-by: Leonid Arsh <leonida@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: Add client reregister event typeLeonid Arsh2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | Add IB_EVENT_CLIENT_REREGISTER to enum so low-level drivers can generate "client reregister" events. Signed-off-by: Leonid Arsh <leonida@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: Add caching of ports' LMCJack Morgenstein2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add an LMC cache to struct ib_device, and add a function ib_get_cached_lmc() to query the cache. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: IP address based RDMA connection managerSean Hefty2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel connection management agent over InfiniBand that connects based on IP addresses. The agent defines a generic RDMA connection abstraction to support clients wanting to connect over different RDMA devices. The agent also handles RDMA device hotplug events on behalf of clients. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: address translation to map IP toIB addresses (GIDs)Sean Hefty2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | Add an address translation service that maps IP addresses to InfiniBand GID addresses using IPoIB. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB/cm: Match connection requests based on private dataSean Hefty2006-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend matching connection requests to listens in the InfiniBand CM to include private data checks. This allows applications to listen on the same service identifier, with private data directing the request to the appropriate application. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | IB: common handling for marshalling parameters to/from userspaceSean Hefty2006-06-17
| |/ | | | | | | | | | | | | | | Provide common handling for marshalling data between userspace clients and kernel InfiniBand drivers. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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