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* [SPARC64]: Move over to GENERIC_HARDIRQS.David S. Miller2006-06-20
| | | | | | | | | | | | | | | | | | | | | | | | | | This is the long overdue conversion of sparc64 over to the generic IRQ layer. The kernel image is slightly larger, but the BSS is ~60K smaller due to the reduced size of struct ino_bucket. A lot of IRQ implementation details, including ino_bucket, were moved out of asm-sparc64/irq.h and are now private to arch/sparc64/kernel/irq.c, and most of the code in irq.c totally disappeared. One thing that's different at the moment is IRQ distribution, we do it at enable_irq() time. If the cpu mask is ALL then we round-robin using a global rotating cpu counter, else we pick the first cpu in the mask to support single cpu targetting. This is similar to what powerpc's XICS IRQ support code does. This works fine on my UP SB1000, and the SMP build goes fine and runs on that machine, but lots of testing on different setups is needed. Signed-off-by: David S. Miller <davem@davemloft.net>
* [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]: bp->pil can never be zeroDavid S. Miller2006-06-20
| | | | | | | | Only pil0_dummy_bucket had a pil of zero and we just killed that off, so we can delete all special case code that used bp->pil==0 as a way to identify a dummy bucket. 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]: Fix iommu_flush_iotlb end addressBob Breuer2006-06-20
| | | | | | | | | Fix the calculation of the end address when flushing iotlb entries to ram. This bug has been a cause of esp dma errors, and it affects HyperSPARC systems much worse than SuperSPARC systems. Signed-off-by: Bob Breuer <breuerr@mc.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Mark smp init functions as cpuinitBob Breuer2006-06-20
| | | | | | | | Fix the smp related section mismatch warnings by marking the smp init functions as cpuinit. Signed-off-by: Bob Breuer <breuerr@mc.net> 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>
* [SPARC]: Add topology_init()Bob Breuer2006-06-20
| | | | | | | | Fix a crash in SMP mode by adding the missing topology_init. Also makes /proc/cpuinfo backwards compatible with 2.4. 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] Correct HAL2 Kconfig descriptionKumba2006-06-19
| | | | | | | | | | | | | | | | | | The current HAL2 Kconfig description indicates it is only used on SGI Indy systems, however all members of the Indigo2 Family have this sound card as well. Plus a minor grammatical fix is included. Signed-off-by: Joshua Kinard <kumba@gentoo.org> 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] Random fixes for sb1250Thiemo Seufer2006-06-19
| | | | | | | | | | | | | | | | Random improvements for sb1250: Silence compiler warnings, a bugfix for the profiling code, and a comment typo. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix bcm1480 compileThiemo Seufer2006-06-19
| | | | | | | | | | | | | | Fix compilation for bcm1480, a hpt is only available on sb1250/bcm112x. Signed-off-by: Thiemo Seufer <ths@networkno.de> 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] Remove unused function alloc_pci_controller.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Extract pci_ops into separate file.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Use symbolic constants instead of magic numbers.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] vr41xx: remove unnecessay items from vr41xx/Kconfig.Yoichi Yuasa2006-06-19
| | | | | | | | | | | | | | | | Remove unnecessary items from vr41xx/Kconfig. SYS_HA_CPU_VR41XX has already been selected by MACH_VR41XX. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> 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] Cleanup ARCH_DISCONTIGMEM_ENABLE and NUMA configuration.Ralf Baechle2006-06-19
| | | | | | | | | | | | | | | | IP27 configuration isn't the only NUMA system - it just happens to be the currently only supported MIPS NUMA system. So move the necessary options back into the main MIPS Kconfig file. 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] C99-ify struct resource initialization.Ralf Baechle2006-06-19
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Remove duplicate declarations from Alchemy code.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] arch/mips/au1000/time.c cleanupSergei Shtylyov2006-06-19
| | | | | | | | | | | | | | | | | | Mark au1xxx_timer_setup() __init, just because it is. Get rid of unneeded extern's (note that (*do_gettimeoffset)() is already declared by <asm/time.c>) and an unused variable. Kill some whitespace... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Remove unused instances of prom_build_cpu_map.Ralf Baechle2006-06-19
| | | | | | | | 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>
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