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* [CPUFREQ] Fix ondemand vs suspend deadlockVenkatesh Pallipadi2006-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rootcaused the bug to a deadlock in cpufreq and ondemand. Due to non-existent ordering between cpu_hotplug lock and dbs_mutex. Basically a race condition between cpu_down() and do_dbs_timer(). cpu_down() flow: * cpu_down() call for CPU 1 * Takes hot plug lock * Calls pre down notifier * cpufreq notifier handler calls cpufreq_driver_target() which takes cpu_hotplug lock again. OK as cpu_hotplug lock is recursive in same process context * CPU 1 goes down * Calls post down notifier * cpufreq notifier handler calls ondemand event stop which takes dbs_mutex So, cpu_hotplug lock is taken before dbs_mutex in this flow. do_dbs_timer is triggerred by a periodic timer event. It first takes dbs_mutex and then takes cpu_hotplug lock in cpufreq_driver_target(). Note the reverse order here compared to above. So, if this timer event happens at right moment during cpu_down, system will deadlok. Attached patch fixes the issue for both ondemand and conservative. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Fix powernow-k8 SMP kernel on UP hardware bug.Randy Dunlap2006-06-21
| | | | | | | | Fix powernow-k8 doesn't load bug. Reference: https://launchpad.net/distros/ubuntu/+source/linux-source-2.6.15/+bug/35145 Signed-off-by: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [PATCH] redirect speedstep-centrino maintainer mail to cpufreq listJeremy Fitzhardinge2006-06-21
| | | | | | | | | | | | | | | I haven't really maintained this driver for a while, and I'm not keeping up with the latest in Intel power management. I get a steady stream of mail which I don't really do anything useful with; the cpufreq list seems like a better destination, unless someone wants to get the mail directly. Also clean up a couple of ancient comments which don't really apply anymore (as far as I know, nobody has ever damaged a CPU with this driver). Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] correct powernow-k8 fid/vid masks for extended partsLangsdorf, Mark2006-06-20
| | | | | | | | | The fid/vid masks for parts using the extended parts are slightly incorrect and can result in incorrect fid/vid codes being applied. No instances of this problem have been reported in the field but it could be a problem with future parts. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Clarify powernow-k8 cpu_family statementsLangsdorf, Mark2006-06-20
| | | | | | | | This patch clarifies the meaning of the cpu_family if statements in the hw pstate driver patch for powernow-k8 Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* 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>
| * [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] Remove prototype for non-existing function.Ralf Baechle2006-06-19
| | | | | | | | 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] Au1xxx: board specific irq code cleanupHerbert Valerio Riedel2006-06-19
| | | | | | | | | | | | | | | | Convert sizeof/sizeof use to use of ARRAY_SIZE macro, and annotate irqmap structures as __initdata. Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] IP27: Fix collision with hardcoded interrupt number.Ralf Baechle2006-06-19
| | | | | | | | 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>
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