summaryrefslogtreecommitdiffstats
path: root/arch/powerpc
AgeCommit message (Collapse)Author
2006-07-26[POWERPC] Fix non-MPIC CHRPs with CONFIG_SMP setBenjamin Herrenschmidt
Pseudo-CHRP machines like Pegasos without an MPIC would crash at boot if CONFIG_SMP was set because the "smp_ops" pointer was set to MPIC related ops unconditionally. This patch makes it NULL on machines that don't support SMP and provides proper default behaviour in the callers when smp_ops is NULL. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-26[POWERPC] Fix 32 bits warning in prom_init.cBenjamin Herrenschmidt
A warning is hurting my eyes when building 32 bits kernels Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-26[POWERPC] Workaround Pegasos incorrect ISA "ranges"Benjamin Herrenschmidt
The Pegasos firmware doesn't create a valid "ranges" property for the ISA bridge, thus causing translation of ISA addresses and IO ports to fail. This fixes it, thus re-enabling proper early serial console to work on Pegasos. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-26[POWERPC] fix up front-LED KconfigJohannes Berg
This patch fixes the front-LED Kconfig issues I introduced while creating it. Apparently having a dependency isn't enough to have the select not evaluated or something like that. The patch also changes the default configuration for pmac32 select the default for the LED to be the IDE trigger. While I was at it, I completely updated the defconfig and also added snd-aoa to it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-10[PATCH] powermac: Combined fixes for backlight codeMichael Hanselmann
This patch fixes several problems: - pmac_backlight_key() is called under interrupt context, and therefore can't use mutexes or semaphores, so defer the backlight level for later, as it's not critical (original code by Aristeu S. Rozanski F. <aris@valeta.org>). - Add exports for functions that might be called from modules - Fix Kconfig depdencies on PMAC_BACKLIGHT. - Fix locking issues on calls from inside the driver (reported by Aristeu S. Rozanski F., too) - Fix wrong calculation of backlight values in some of the drivers - Replace pmac_backlight_key_up/down by inline functions [akpm@osdl.org: fix function prototypes] Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Acked-by: Aristeu S. Rozanski F. <aris@valeta.org> Acked-by: Rene Nussbaumer <linux-kernel@killerfox.forkbomb.ch> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] powerpc: make OF interrupt tree parsing more strictSegher Boessenkool
This patch fixes a bit of boundchecking in the new Open Firmware interrupt tree parsing code. It's important that it fails when things aren't correct in order to trigger fallback mecanisms that are necessary to make some machines work properly. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] powerpc: fix MPIC OF tree parsing on Apple quad g5Benjamin Herrenschmidt
The quad g5 currently doesn't boot due to two problems. This patch fixes the first one: Apple new way of doing interrupt specifiers in OF for devices using the HT APIC isn't properly parsed by the new MPIC driver code. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] powerpc: fix trigger handling in the new irq codeBenjamin Herrenschmidt
This patch slightly reworks the new irq code to fix a small design error. I removed the passing of the trigger to the map() calls entirely, it was not a good idea to have one call do two different things. It also fixes a couple of corner cases. Mapping a linux virtual irq to a physical irq now does only that. Setting the trigger is a different action which has a different call. The main changes are: - I no longer call host->ops->map() for an already mapped irq, I just return the virtual number that was already mapped. It was called before to give an opportunity to change the trigger, but that was causing issues as that could happen while the interrupt was in use by a device, and because of the trigger change, map would potentially muck around with things in a racy way. That was causing much burden on a given's controller implementation of map() to get it right. This is much simpler now. map() is only called on the initial mapping of an irq, meaning that you know that this irq is _not_ being used. You can initialize the hardware if you want (though you don't have to). - Controllers that can handle different type of triggers (level/edge/etc...) now implement the standard irq_chip->set_type() call as defined by the generic code. That means that you can use the standard set_irq_type() to configure an irq line manually if you wish or (though I don't like that interface), pass explicit trigger flags to request_irq() as defined by the generic kernel interfaces. Also, using those interfaces guarantees that your controller set_type callback is called with the descriptor lock held, thus providing locking against activity on the same interrupt (including mask/unmask/etc...) automatically. A result is that, for example, MPIC's own map() implementation calls irq_set_type(NONE) to configure the hardware to the default triggers. - To allow the above, the irq_map array entry for the new mapped interrupt is now set before map() callback is called for the controller. - The irq_create_of_mapping() (also used by irq_of_parse_and_map()) function for mapping interrupts from the device-tree now also call the separate set_irq_type(), and only does so if there is a change in the trigger type. - While I was at it, I changed pci_read_irq_line() (which is the helper I would expect most archs to use in their pcibios_fixup() to get the PCI interrupt routing from the device tree) to also handle a fallback when the DT mapping fails consisting of reading the PCI_INTERRUPT_PIN to know wether the device has an interrupt at all, and the the PCI_INTERRUPT_LINE to get an interrupt number from the device. That number is then mapped using the default controller, and the trigger is set to level low. That default behaviour works for several platforms that don't have a proper interrupt tree like Pegasos. If it doesn't work for your platform, then either provide a proper interrupt tree from the firmware so that fallback isn't needed, or don't call pci_read_irq_line() - Add back a bit that got dropped by my main rework patch for properly clearing pending IPIs on pSeries when using a kexec Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] tty: Remove include of screen_info.h from tty.hJon Smirl
screen_info.h doesn't have anything to do with the tty layer and shouldn't be included by tty.h. This patches removes the include and modifies all users to directly include screen_info.h. struct screen_info is mainly used to communicate with the console drivers in drivers/video/console. Note that this patch touches every arch and I have no way of testing it. If there is a mistake the worst thing that will happen is a compile error. [akpm@osdl.org: fix arm build] [akpm@osdl.org: fix alpha build] Signed-off-by: Jon Smirl <jonsmir@gmail.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-05[PATCH] powerpc: Fix loss of interrupts with MPICBenjamin Herrenschmidt
With the new interrupt rework, an interrupt "host" map() callback can be called after the interrupt is already active. It's called again for an already mapped interrupt to allow changing the trigger setup, and currently this is not guarded with a test of wether the interrupt is requested or not. I plan to change some of this logic to be a bit less lenient against random reconfiguring of live interrupts but just not yet. The ported MPIC driver has a bug where when that happens, it will mask the interrupt. This changes it to preserve the previous masking of the interrupt instead. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: kbuild: introduce utsrelease.h kbuild: explicit turn off gcc stack-protector
2006-07-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: add defconfig for Freescale MPC8349E-mITX board powerpc: Add base support for the Freescale MPC8349E-mITX eval board Documentation: correct values in MPC8548E SEC example node [POWERPC] Actually copy over i8259.c to arch/ppc/syslib this time [POWERPC] Add new interrupt mapping core and change platforms to use it [POWERPC] Copy i8259 code back to arch/ppc [POWERPC] New device-tree interrupt parsing code [POWERPC] Use the genirq framework [PATCH] genirq: Allow fasteoi handler to retrigger disabled interrupts [POWERPC] Update the SWIM3 (powermac) floppy driver [POWERPC] Fix error handling in detecting legacy serial ports [POWERPC] Fix booting on Momentum "Apache" board (a Maple derivative) [POWERPC] Fix various offb and BootX-related issues [POWERPC] Add a default config for 32-bit CHRP machines [POWERPC] fix implicit declaration on cell. [POWERPC] change get_property to return void *
2006-07-03[PATCH] lockdep: irqtrace subsystem, move account_system_vtime() calls into ↵Paul Mackerras
kernel/softirq.c At the moment, powerpc and s390 have their own versions of do_softirq which include local_bh_disable() and __local_bh_enable() calls. They end up calling __do_softirq (in kernel/softirq.c) which also does local_bh_disable/enable. Apparently the two levels of disable/enable trigger a warning from some validation code that Ingo is working on, and he would like to see the outer level removed. But to do that, we have to move the account_system_vtime calls that are currently in the arch do_softirq() implementations for powerpc and s390 into the generic __do_softirq() (this is a no-op for other archs because account_system_vtime is defined to be an empty inline function on all other archs). This patch does that. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03[PATCH] lockdep: irqtrace subsystem, coreIngo Molnar
Accurate hard-IRQ-flags and softirq-flags state tracing. This allows us to attach extra functionality to IRQ flags on/off events (such as trace-on/off). Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03kbuild: introduce utsrelease.hSam Ravnborg
include/linux/version.h contained both actual KERNEL version and UTS_RELEASE that contains a subset from git SHA1 for when kernel was compiled as part of a git repository. This had the unfortunate side-effect that all files including version.h would be recompiled when some git changes was made due to changes SHA1. Split it out so we keep independent parts in separate files. Also update checkversion.pl script to no longer check for UTS_RELEASE. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-07-03Merge branch '83xx' into for_paulusKumar Gala
2006-07-03powerpc: add defconfig for Freescale MPC8349E-mITX boardKim Phillips
Provide default configuration for the Freescale MPC8349E-mITX board, including the on-board 16MB flash. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-07-03powerpc: Add base support for the Freescale MPC8349E-mITX eval boardKim Phillips
Added support for the Freescale MPC8343e-mITX board. Currently based on the 8343 SYS code. The 2nd PHY (5-port switch) and SATA are untested (work in progress). Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-07-03[POWERPC] Add new interrupt mapping core and change platforms to use itBenjamin Herrenschmidt
This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] Copy i8259 code back to arch/ppcBenjamin Herrenschmidt
This copies the i8259 interrupt controller driver from arch/powerpc to arch/ppc. It's currently shared by both architectures, but the upcoming arch/powerpc interrupt changes will break the arch/ppc builds. The changes are too important to just use #ifdef's in the driver. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] New device-tree interrupt parsing codeBenjamin Herrenschmidt
Adds new routines to prom_parse to walk the device-tree for interrupt information. This includes both direct mapping of interrupts and low level parsing functions for use with partial trees. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] Use the genirq frameworkBenjamin Herrenschmidt
This adapts the generic powerpc interrupt handling code, and all of the platforms except for the embedded 6xx machines, to use the new genirq framework. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] Fix error handling in detecting legacy serial portsBenjamin Herrenschmidt
Previously we weren't checking for failures in translating device addresses from the firmware. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] Fix booting on Momentum "Apache" board (a Maple derivative)Benjamin Herrenschmidt
This extends the maple device-tree workarounds to work on the Apache board as well, and extends the maple platform probing code to recognize the Apache board. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] Fix various offb and BootX-related issuesBenjamin Herrenschmidt
This patch fixes various issues with offb (the default fbdev used on powerpc when no proper fbdev is supported). It was broken when using BootX under some circumstances and would fail to properly get the framebuffer base address in others. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] Add a default config for 32-bit CHRP machinesPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] fix implicit declaration on cell.Dave Jones
(Only fails with -Werror-implicit-function-declaration, but it should still be fixed). arch/powerpc/platforms/cell/setup.c:145: error: implicit declaration of function 'udbg_init_rtas_console' Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-03[POWERPC] change get_property to return void *Jeremy Kerr
Change the get_property() function to return a void *. This allows us to later remove the cast done in the majority of callers. Built for pseries, iseries, pmac32, cell, cbesim, g5, systemsim, maple, and mpc* defconfigs Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-02[PATCH] irq-flags: POWERPC: Use the new IRQF_ constantsThomas Gleixner
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: occuring -> occurringAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: mecanism -> mechanismAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-29[PATCH] KConfig: Spellchecking 'similarity' and 'independent'Matt LaPlante
Several KConfig files had 'similarity' and 'independent' spelled incorrectly... Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (43 commits) [POWERPC] Use little-endian bit from firmware ibm,pa-features property [POWERPC] Make sure smp_processor_id works very early in boot [POWERPC] U4 DART improvements [POWERPC] todc: add support for Time-Of-Day-Clock [POWERPC] Make lparcfg.c work when both iseries and pseries are selected [POWERPC] Fix idr locking in init_new_context [POWERPC] mpc7448hpc2 (taiga) board config file [POWERPC] Add tsi108 pci and platform device data register function [POWERPC] Add general support for mpc7448hpc2 (Taiga) platform [POWERPC] Correct the MAX_CONTEXT definition powerpc: minor cleanups for mpc86xx [POWERPC] Make sure we select CONFIG_NEW_LEDS if ADB_PMU_LED is set [POWERPC] Simplify the code defining the 64-bit CPU features [POWERPC] powerpc: kconfig warning fix [POWERPC] Consolidate some of kernel/misc*.S [POWERPC] Remove unused function call_with_mmu_off [POWERPC] update asm-powerpc/time.h [POWERPC] Clean up it_lp_queue.h [POWERPC] Skip the "copy down" of the kernel if it is already at zero. [POWERPC] Add the use of the firmware soft-reset-nmi to kdump. ...
2006-06-29Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: [PATCH] i386: export memory more than 4G through /proc/iomem [PATCH] 64bit Resource: finally enable 64bit resource sizes [PATCH] 64bit Resource: convert a few remaining drivers to use resource_size_t where needed [PATCH] 64bit resource: change pnp core to use resource_size_t [PATCH] 64bit resource: change pci core and arch code to use resource_size_t [PATCH] 64bit resource: change resource core to use resource_size_t [PATCH] 64bit resource: introduce resource_size_t for the start and end of struct resource [PATCH] 64bit resource: fix up printks for resources in misc drivers [PATCH] 64bit resource: fix up printks for resources in arch and core code [PATCH] 64bit resource: fix up printks for resources in pcmcia drivers [PATCH] 64bit resource: fix up printks for resources in video drivers [PATCH] 64bit resource: fix up printks for resources in ide drivers [PATCH] 64bit resource: fix up printks for resources in mtd drivers [PATCH] 64bit resource: fix up printks for resources in pci core and hotplug drivers [PATCH] 64bit resource: fix up printks for resources in networks drivers [PATCH] 64bit resource: fix up printks for resources in sound drivers [PATCH] 64bit resource: C99 changes for struct resource declarations Fixed up trivial conflict in drivers/ide/pci/cmd64x.c (the printk that was changed by the 64-bit resources had been deleted in the meantime ;)
2006-06-29[PATCH] genirq: cleanup: turn ARCH_HAS_IRQ_PER_CPU into CONFIG_IRQ_PER_CPUIngo Molnar
Cleanup: change ARCH_HAS_IRQ_PER_CPU into a Kconfig method. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29[PATCH] genirq: cleanup: remove irq_descp()Ingo Molnar
Cleanup: remove irq_descp() - explicit use of irq_desc[] is shorter and more readable. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29[PATCH] genirq: cleanup: merge irq_affinity[] into irq_desc[]Ingo Molnar
Consolidation: remove the irq_affinity[NR_IRQS] array and move it into the irq_desc[NR_IRQS].affinity field. [akpm@osdl.org: sparc64 build fix] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29[PATCH] genirq: rename desc->handler to desc->chipIngo Molnar
This patch-queue improves the generic IRQ layer to be truly generic, by adding various abstractions and features to it, without impacting existing functionality. While the queue can be best described as "fix and improve everything in the generic IRQ layer that we could think of", and thus it consists of many smaller features and lots of cleanups, the one feature that stands out most is the new 'irq chip' abstraction. The irq-chip abstraction is about describing and coding and IRQ controller driver by mapping its raw hardware capabilities [and quirks, if needed] in a straightforward way, without having to think about "IRQ flow" (level/edge/etc.) type of details. This stands in contrast with the current 'irq-type' model of genirq architectures, which 'mixes' raw hardware capabilities with 'flow' details. The patchset supports both types of irq controller designs at once, and converts i386 and x86_64 to the new irq-chip design. As a bonus side-effect of the irq-chip approach, chained interrupt controllers (master/slave PIC constructs, etc.) are now supported by design as well. The end result of this patchset intends to be simpler architecture-level code and more consolidation between architectures. We reused many bits of code and many concepts from Russell King's ARM IRQ layer, the merging of which was one of the motivations for this patchset. This patch: rename desc->handler to desc->chip. Originally i did not want to do this, because it's a big patch. But having both "desc->handler", "desc->handle_irq" and "action->handler" caused a large degree of confusion and made the code appear alot less clean than it truly is. I have also attempted a dual approach as well by introducing a desc->chip alias - but that just wasnt robust enough and broke frequently. So lets get over with this quickly. The conversion was done automatically via scripts and converts all the code in the kernel. This renaming patch is the first one amongst the patches, so that the remaining patches can stay flexible and can be merged and split up without having some big monolithic patch act as a merge barrier. [akpm@osdl.org: build fix] [akpm@osdl.org: another build fix] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29[PATCH] solve config broken: undefined reference to `online_page'Yasunori Goto
Memory hotplug code of i386 adds memory to only highmem. So, if CONFIG_HIGHMEM is not set, CONFIG_MEMORY_HOTPLUG shouldn't be set. Otherwise, it causes compile error. In addition, many architecture can't use memory hotplug feature yet. So, I introduce CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29[POWERPC] Use little-endian bit from firmware ibm,pa-features propertyPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] Make sure smp_processor_id works very early in bootMichael Ellerman
There's a small period early in boot where we don't know which cpu we're running on. That's ok, except that it means we have no paca, or more correctly that our paca pointer points somewhere random. So that we can safely call things like smp_processor_id(), we need a paca, so just assume we're on cpu 0. No code should _write_ to the paca before we've set the correct one up. We setup the proper paca after we've scanned the flat device tree in early_setup(), so there's no need to do it again in start_here_common. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] U4 DART improvementsOlof Johansson
Better late than never... Respin based on previous comment. Only remaining issue last time was an extra mb() that I've taken out. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] todc: add support for Time-Of-Day-ClockMark A. Greer
This is a resubmit with a proper subject and with all comments addressed. Applies cleanly to powerpc.git 649e85797259162f7fdc696420e7492f20226f2d Mark -- The todc code from arch/ppc supports many todc/rtc chips and is needed in arch/powerpc. This patch adds the todc code to arch/powerpc. Signed-off-by: Mark A. Greer <mgreer@mvista.com> -- arch/powerpc/Kconfig | 7 arch/powerpc/sysdev/Makefile | 1 arch/powerpc/sysdev/todc.c | 392 ++++++++++++++++++++++++++++++++++ include/asm-powerpc/todc.h | 487 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 887 insertions(+) -- Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] Make lparcfg.c work when both iseries and pseries are selectedStephen Rothwell
This also consolidates the initial bits of lparcfg_data() and adds the partition number to the iSeries flattened device tree. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] Fix idr locking in init_new_contextSonny Rao
We always need to serialize accesses to mmu_context_idr. I hit this bug when testing with a small number of mmu contexts. Signed-off-by: Sonny Rao <sonny@burdell.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] mpc7448hpc2 (taiga) board config fileZang Roy-r61911
Add default config for mpc7448 hpc2 (taiga) board. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] Add tsi108 pci and platform device data register functionZang Roy-r61911
Add Tundra Semiconductor tsi108 pci and platform device data register function support. Signed-off-by: Alexandre Bounine <alexandreb@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> --- Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-29[POWERPC] Add general support for mpc7448hpc2 (Taiga) platformZang Roy-r61911
Add support for Freescale mpc7448 (Taiga) board support Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-28[PATCH] powermac backlight fixesMichael Hanselmann
Fix a erroneous calculation of the legacy brightness values as reported by Paul Collins. Additionally, it moves the calculation of the negative value in the radeonfb driver after the value check. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Collins <paul@briny.ondioline.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>