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2005-06-03[PATCH] prom_find_machine_type typo breaks pSeries lpar bootNathan Lynch
A typo in prom_find_machine_type from Ben's recent patch "ppc64: Fix result code handling in prom_init" prevents pSeries LPAR systems from booting. Tested on a pSeries 570 and OpenPower 720 (both Power5 LPAR). Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-03[PATCH] m68knommu: fix scheduling and race problems in idle loopGreg Ungerer
Re-work the m68knommu specific idle code according to suggestions from Nick Piggin <nickpiggin@yahoo.com.au>. A couple of rules that we need to follow: 1. Preempt should now disabled over idle routines. Should only be enabled to call schedule() then disabled again. 3. When cpu_idle finds (need_resched() == 'true'), it should call schedule(). It should not call schedule() otherwise. Also fix interrupt locking around the need_resched() and cpu stop state so that there is no race condition. Signed-off-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-02[PATCH] ppc64: remove decr_overclockAnton Blanchard
Now that we have HZ=1000 there is much less of a need for decr_overclock. Remove it. Leave spread_lpevents but move it into iSeries_setup.c. We should look at making event spreading the default some day. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-02[PATCH] ppc64: cleanup iseries runlight supportAnton Blanchard
The iseries has a bar graph on the front panel that shows how busy it is. The operating system sets and clears a bit in the CTRL register to control it. Instead of going to the complexity of using a thread info bit, just set and clear it in the idle loop. Also create two helper functions, ppc64_runlatch_on and ppc64_runlatch_off. Finally don't use the short form of the SPR defines. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-02[PATCH] ppc64: Fix result code handling in prom_initBenjamin Herrenschmidt
prom_init(), the trampoline code that "talks" to Open Firmware during early boot, has various issues with managing OF result codes. Some of my recent fixups in fact made the problem worse on some platforms. This patch reworks it all. Tested on g5, Maple, POWER3 and POWER5. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-01Merge of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds
2005-06-01[IA64] fix compilation warning in sys32_epoll_wait()Peter Chubb
This gets rid of an unused variable `error' in sys_ia32.c:sys32_epoll_wait() Getting rid of this one makes parsing the output of the kernecomp autobuild easier --- searching for `Error' to find a problem kept hitting this one, even though it's only a warning. Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-01[IA64] Cleanup compile warnings for ski configPeter Chubb
The attached patch cleans up a compilation warning when ACPI is turned off (i.e., when compiling for the Ski simulator). Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-01Automatic merge of ↵Linus Torvalds
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
2005-06-01[PATCH] ppc32/ppc64: cleanup /proc/device-treeBenjamin Herrenschmidt
This cleans up the /proc/device-tree representation of the Open Firmware device-tree on ppc and ppc64. It does the following things: - Workaround an issue in some Apple device-trees where a property may exist with the same name as a child node of the parent. We now simply "drop" the property instead of creating duplicate entries in /proc with random result... - Do not try to chop off the "@0" at the end of a node name whose unit address is 0. This is not useful, inconsistent, and the code was buggy and didn't always work anyway. - Do not create symlinks for the short name and unit address parts of a node. These were never really used, bloated the memory footprint of the device-tree with useless struct proc_dir_entry and their matching dentry and inode cache bloat. This results in smaller code, smaller memory footprint, and a more accurate view of the tree presented to userland. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-01[PATCH] ppc32: Apple device-tree bug fixBenjamin Herrenschmidt
This is the ppc32 patch equivalent to the just posted ppc64 one working around a bug in Apple device-trees regarding the "cpus" nodes. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-01[PATCH] ppc64: Fix a device-tree bug on Apple'sBenjamin Herrenschmidt
Apple's Open Firmware has a funny bug when creating the /cpus nodes where it leaves a dangling '\0' character in the CPU name which ends up appearing in the full path of the node. This is bogus and confuses /proc/device-tree badly. This patch strips those bogus zero's from the node full path when reading the device-tree from Open Firmware. The "name" property is not modified and still contains the spurrious 0 (it basically contains 0 tailing 0 instead of one) but that shouldn't be a problem. An equivalent patch for ppc32 will follow shortly Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31[SPARC64]: Refine PCI strbuf ctx-based flush.David S. Miller
The initial peek read PIO of the match register is just a waste. Just do the flush writes first, as that is more efficient. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-31[CPUFREQ] Typos.Dave Jones
cpfureq developers cant spel. Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] longhaul - adjust transition latency.Dave Jones
From patch by: Ken Staton <ken_staton@agilent.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] Longhaul: Magic timer frobbing.Dave Jones
As mandated by the spec, disable timer around transitions. From code by : Ken Staton <ken_staton@agilent.com Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] longhaul - disable PCI mastering around transition.Dave Jones
The spec states that we have to do this, which is *horrid*. Based on code from: Ken Staton <ken_staton@agilent.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] dual-core powernow-k8Dave Jones
With the release of the dual-core AMD Opterons last week, it's high time that cpufreq supported them. The attached patch applies cleanly to 2.6.12-rc3 and updates powernow-k8 to support the latest Athlon 64 and Opteron processors. Update the driver to version 1.40.0 and provide support for dual-core processors. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] Recalibrate cpu_khz [2/2]Dave Jones
Some cpufreq drivers (at that time, only powernow-k7) need to recalibrate the cpu_khz at runtime. Signed-off-by: Bruno Ducrot <ducrot@poupinou.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] Recalibrate cpu_khz [1/2]Dave Jones
We have to recalibrate cpu_khz in order to use the current FID instead the max FID since some BIOS do not put the processor at maximum frequency at POST. Also, some BIOS will change the processor frequency at our back after cpu_khz was calibrate. Finally, this will fix a long standing bug when we do something like this: # rmmod powernow-k7 # modprobe powernow-k7 Signed-off-by: Bruno Ducrot <ducrot@poupinou.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] AMD Elan SC520 cpufreq driver.Dave Jones
From: Sean Young <sean@mess.org> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] speedstep-smi: it works on at least one P4MDave Jones
The speedstep-smi driver actually works on >=1 notebook with a Pentium 4-M CPU where all other cpufreq drivers fail. Therefore, allow speedstep-smi on P4Ms again, but warn users of likely failure Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] speedstep-centrino: Pentium 4 - M (HT) supportDave Jones
The Pentium 4 - Ms (HT) with CPUID 0xF34 and 0xF41 seem to support centrino-like enhanced speedstep; however, no "table" support is possible. Therefore, put NULL entries into speedstep-centrino.c Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[CPUFREQ] powernow-k7: don't print khz element of FSB.Dave Jones
Signed-off-by: Dave Jones <davej@redhat.com>
2005-05-31[SPARC64]: Fix streaming buffer flushing on PCI and SBUS.David S. Miller
Firstly, if the direction is TODEVICE, then dirty data in the streaming cache is impossible so we can elide the flush-flag synchronization in that case. Next, the context allocator is broken. It is highly likely that contexts get used multiple times for different dma mappings, which confuses the strbuf flushing code and makes it run inefficiently. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-05-31[PATCH] ppc64: allow timer based profiling on iseriesAnton Blanchard
We used to have an iseries specific profiler that used /proc/profile. Now thats gone we can use the generic timer based stuff. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31[PATCH] h8300 sleep problemNick Piggin
h8300 appears to sleep (halt) when need_resched IS set. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31[PATCH] acpi build fix: x86 setup.cAlexander Nyberg
This is a neverending story linux/acpi.h contains empty declarations for acpi_boot_init() & acpi_boot_table_init() but they are nested inside #ifdef CONFIG_ACPI. So we'll have to #ifdef in arch/i386/kernel/setup.c: setup_arch() Signed-off-by: Alexander Nyberg <alexn@telia.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31[PATCH] x86_64 CONFIG_ACPI=n build fixAndi Kleen
Make CONFIG_X86_PM_TIMER dependent on CONFIG_ACPI Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31[PATCH] x86_64: More fixes for compilation without CONFIG_ACPIAndi Kleen
Suggested by Alexander Nyberg Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-31Automatic merge of ↵Linus Torvalds
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2005-05-31[IA64] Use "PER_CPU" form of EXPORT macroTony Luck
I was gently reminded that there are per-cpu forms of the EXPORT_SYMBOL macros. Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-05-31[PATCH] ppc64: actually call prom_send_capabilitiesPaul Mackerras
When I sent in the patch adding the code for the kernel to tell the firmware about its capabilities on pSeries machines, I included the function to give the capabilities to firmware but somehow forgot the hunk that adds the call to the new function. This patch adds the call. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: i8259 PIC should not be initialized if PCI is not configuredKumar Gala
Trying to initialize the i8259 PIC will not work if CONFIG_PCI is not enabled. The kernel hangs if the initialization is tried. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Add soft reset to MPC834xKumar Gala
This change allows mpc83xx_restart to issue a software reset. Signed-off-by: Randy Vinson <rvinson@mvista.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: MPC834x BCSR_SIZE too small for use in a BAT.Kumar Gala
The call to io_block_mapping was creating an invalid BAT entry because the value of BCSR_SIZE (32K) is too small to be used in a BAT (128K min). This change removes the io_block_mapping call since these registers can easily be mapped using ioremap at the point of use. Signed-off-by: Randy Vinson <rvinson@mvista.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Simplified load string emulation error checkingKumar Gala
The error checking for emulation of load string instructions was overly generous and would cause certain valid forms of the instructions to be treated as illegal. We drop the range checking since the architecture allows this to be boundedly undefined. Tests on CPUs that support these instructions appear not do cause illegal instruction traps on range errors and just allow the execution to occur. Thanks to Kim Phillips for debugging this and figuring out what real HW was doing. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Fix building MPC8555 CDS when CONFIG_PCI is disabledKumar Gala
The patch that introduced support for the VIA chipset broke building if CONFIG_PCI is disabled. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Support for 82xx PQII on-chip PCI bridgeVitaly Bordug
This patch adds on-chip PCI bridge support for the PQ2 family. The incomplete existent code is updated with interrupt handling stuff and board-specific bits for 8272ADS and PQ2FADS; the related files were renamed (from m8260_pci to m82xx_pci) to be of more generic fashion. This is tested with 8266ADS and 8272ADS, should work on PQ2FADS as well. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Add VIA IDE support to MPC8555 CDS platformKumar Gala
Add support for the VIA IDE controller that exists on the MPC8555 CDS system. Updated the config for the system to enable support by default. Signed-off-by: Scott Hall <shall@mvista.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Fix some minor issues related to FSL Book-E KGDB supportKumar Gala
Some debug registers needed to be initialized early on to allow proper support for KGDB. Additionally, we need to setup the ppc.md_early_serial_map function pointer on boards that have serial support for KGDB. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] ppc32: Fix uImage make target to report success correctlyKumar Gala
The existing make rule when building a uImage would check to see if the image file existed to report 'is ready' or 'not made'. However make appeared to compute the file list before the rule was executed. Signed-off-by: Chris Clark <cpclark@xmission.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: remove jail mode + other leftoversPaolo 'Blaisorblade' Giarrusso
This var is currently useless, as it's apparent from reading the code. Until 2.6.11 it was used in some code related to jail mode, in the same proc.: if(jail){ while(!reading) sched_yield(); } jail mode has been dropped, together with that use, so let's finish dropping this. Also, remove some other useless definitions I met. Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: fixlet for arch_prctl_skasPaolo 'Blaisorblade' Giarrusso
Fix it a bit (after some cross checking with "man arch_prctl"). There were: *) typos FS/GS and back *) FS in place of FS_BASE (and the same for GS) *) the procedure used put_user on &addr, where addr was the parameter (i.e. changed its param with put_user, completely useless) rather than interpreting addr as a pointer, as requested in this case (see the man page). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: stack dump fixPaolo 'Blaisorblade' Giarrusso
Copy (and adapt) to UML the stack code dumper used in i386 when CONFIG_FRAME_POINTER is enabled. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: split CONFIG_FRAME_POINTER from DEBUG_INFOPaolo 'Blaisorblade' Giarrusso
Until now, FRAME_POINTER was set = DEBUG_INFO for UML. Change it to be the default way, so that it can be enabled alone (for instance to get better backtraces on crashes). The call-trace dumper which uses the frame pointer is not yet in, I'm going to introduce it in a separate patch. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: add MOD_LICENSE to random driverPaolo 'Blaisorblade' Giarrusso
Add a MODULE_LICENSE("GPL") to the driver, remove some unused macros and add the GPL license (it's GPL-licensed anyway since it's a GPL-derivative, apart that Jeff Dike releases GPL software, in case anybody is wondering). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: remove unused codeJeff Dike
This removes two now unused files and a couple of unused functions. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: fix segfault on exit with CONFIG_GCOVJeff Dike
We need to disable signals on exit in all cases, not just when rebooting. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-28[PATCH] uml: single-space a help messageJeff Dike
One of the ubd driver help strings was bust. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>