summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms
Commit message (Collapse)AuthorAgeFilesLines
* [PATCH] powerpc: update my email addressOlof Johansson2005-11-232-2/+2
| | | | | | | | Email address update, changing old work address to personal (permanent) one. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix bug in timebase synchronization on 32-bit SMP powermacPaul Mackerras2005-11-191-2/+4
| | | | | | | | | | We were using udelay in the loop on the primary cpu waiting for the secondary cpu to take the timebase value. Unfortunately now that udelay uses the timebase, and the timebase is stopped at this point, the udelay never terminated. This fixes it by not using udelay, and increases the number of loops before we time out to compensate. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix a couple of compile warnings for 32-bit compilesPaul Mackerras2005-11-181-0/+1
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: time-of-day fixes for 32-bit CHRP systemsPaul Mackerras2005-11-182-3/+11
| | | | | | | | | | This makes 32-bit CHRP systems use the RTAS time-of-day routines if available. It fixes a bug in the RTAS time-of-day routines where they were storing a 64-bit timebase value in an unsigned long by making those variables u64. Also, the direct-access time-of-day routines had the wrong convention for the month and year in the struct rtc_time. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix compile error on pSeries arising from delay.h changesPaul Mackerras2005-11-181-2/+2
| | | | | | | | pseries_dedicated_idle() was using __get_tb which used to be defined in asm/delay.h. Change it to use get_tb from asm/time.h, which is in fact exactly the same thing. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Maple: request I/O resource.Segher Boessenkool2005-11-181-1/+10
| | | | | | | Reserve the Maple RTC I/O resource. Needed now we use genrtc. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] Avoid use of uninitialised spinlock in EEH.David Woodhouse2005-11-171-1/+2
| | | | | | | | | | If the kernel supports both G5 and pSeries, and CONFIG_EEH is enabled, eeh_init() is (quite reasonably) never called when we boot on a G5. Yet eeh_check_failure() still gets called. We should avoid doing that if !eeh_subsystem_enabled. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: add new powerbooks to feature tableOlof Johansson2005-11-161-0/+8
| | | | | | | | | | Hi, The previous PowerBook patch didn't contain the feature table updates for ARCH=powerpc. Here they are. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: pci_64 fixes & cleanupsBenjamin Herrenschmidt2005-11-163-47/+34
| | | | | | | | | | | | | | | | I discovered that in some cases (PowerMac for example) we wouldn't properly map the PCI IO space on recent kernels. In addition, the code for initializing PCI host bridges was scattered all over the place with some duplication between platforms. This patch fixes the problem and does a small cleanup by creating a pcibios_alloc_controller() in pci_64.c that is similar to the one in pci_32.c (just takes an additional device node argument) that takes care of all the grunt allocation and initialisation work. It should work for both boot time and dynamically allocated PHBs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: More debugging fixupsMichael Ellerman2005-11-161-0/+1
| | | | | | | Add a few more missing includes of udbg.h Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Remove __init from a function used in suspend/resume.Paul Mackerras2005-11-151-1/+2
| | | | | | | Suspend/resume on powermacs uses the pmac_get_boot_time function, so it can't be marked as __init. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Move most remaining ppc64 files over to arch/powerpcPaul Mackerras2005-11-143-1/+329
| | | | | | | Also deletes files in arch/ppc64 that are no longer used now that we don't compile with ARCH=ppc64 any more. Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge git://oak/home/sfr/kernels/iseries/workPaul Mackerras2005-11-142-28/+3
|\
| * powerpc: iSeries build fixesStephen Rothwell2005-11-141-6/+0
| | | | | | | | | | | | | | | | | | log_plpar_hcall_return is only used on PPC_PSERIES, so move it closer to its users and inside ifdef CONFIG_PPC_PSERIES. remove the last vestiges of systemcfg in iSeries. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * powerpc: make iSeries use generic virtual irq mappingStephen Rothwell2005-11-141-22/+3
| | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* | [PATCH] powerpc: kill ppc64 rtc.c, use genrtc insteadBenjamin Herrenschmidt2005-11-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | This moves the rtas RTC callbacks to rtas-rtc.c in arch/powerpc/kernel, and kills the rest of arch/ppc64/kernel/rtc.c which was just a duplicate of the genrtc functionality. Also enable build of genrtc for CONFIG_PPC64 (it just works are we already have the required callbacks) and enable it in all defconfigs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: vdso fixes (take #2)Benjamin Herrenschmidt2005-11-141-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | This fixes various errors in the new functions added in the vDSO's, I've now verified all functions on both 32 and 64 bits vDSOs. It also fix a sign extension bug getting the initial time of day at boot that could cause the monotonic clock value to be completely on bogus for 64 bits applications (with either the vDSO or the syscall) on powermacs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Turn cpu_irq_down into kexec_cpu_downMichael Ellerman2005-11-141-2/+24
|/ | | | | | | | | | | | | | | | | | | We currently have a ppc_md member called cpu_irq_down, which disables IRQs for the cpu in question. The only caller of cpu_irq_down is the kexec code. On pSeries we need to do more than just teardown IRQs at kexec time, so rename the ppc_md member to kexec_cpu_down and expand it. The pSeries code needs to know, and other platforms might too, whether we're doing a crash shutdown (ie. panicking) or a regular kexec, so add a flag for that. The pSeries implementation of kexec_cpu_down does an unregister VPA call, which tells the Hypervisor to stop writing stuff into our pacas. Without this we can get weird memory corruption bugs when we kexec, caused by the Hypervisor writing into the first kernel's pacas which happens to be somewhere interesting in the second kernel's memory. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix some compile problems with the VDSO stuffPaul Mackerras2005-11-112-3/+2
| | | | | | | We needed the VDSO symbols in the arch/ppc asm-offsets.c, and there were a few usages of _systemcfg still left lying around. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc64: Remove debug boot messageAnton Blanchard2005-11-111-3/+1
| | | | | | | | We have been printing the raw ppc64_firmware_features during boot. Since we can work it out from the device tree, lets remove it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc64: mark failed devicesLinas Vepstas2005-11-101-16/+32
| | | | | | | | | | | | 17-eeh-slot-marking-bug.patch A device that experiences a PCI outage may be just one deivce out of many that was affected. In order to avoid repeated reports of a failure, the entire tree of affected devices should be marked as failed. This patch marks up the entire tree. Signed-off-by: Linas Vepstas <linas@linas.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge git://oak/home/sfr/kernels/iseries/workPaul Mackerras2005-11-101-1/+0
|\
| * powerpc: remove some warnings when building iSeriesStephen Rothwell2005-11-101-1/+0
| | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* | powerpc: Move some extern declarations from C code into headersPaul Mackerras2005-11-101-2/+1
| | | | | | | | | | | | | | This also make klimit have the same type on 32-bit as on 64-bit, namely unsigned long, and defines and initializes it in one place. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] ppc64: fix PCI IO mappingBenjamin Herrenschmidt2005-11-103-7/+0
|/ | | | | | | | | | | | | | | | | phbs_remap_io(), which maps the PCI IO space into the kernel virtual space, is called too early on powermac, and thus doesn't work. This fixes it by removing the call from all platforms and putting it back into the ppc64 common code where it belongs, after the actual probing of the bus. That means that before that call, only the ISA IO space (if any) is mapped, any PIO access (from quirks for example) will fail. This happens not to be a problem for now, but we'll have to rework that code if it becomes one in the future. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fixes for 32-bit powermac SMPPaul Mackerras2005-11-101-20/+31
| | | | | | A couple of bugs crept in with the merge of smp.c... Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix compile error in EEH code with gcc4Paul Mackerras2005-11-101-2/+2
| | | | | | Gcc 4 doesn't like being told to inline a recursive function... Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: merge code values for identifying platformsPaul Mackerras2005-11-109-27/+33
| | | | | | | | | | | | This patch merges platform codes. systemcfg->platform is no longer used, systemcfg use in general is deprecated as much as possible (and renamed _systemcfg before it gets completely moved elsewhere in a future patch), _machine is now used on ppc64 along as ppc32. Platform codes aren't gone yet but we are getting a step closer. A bunch of asm code in head[_64].S is also turned into C code. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Consolidate asm compatibility macrosDavid Gibson2005-11-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | This patch consolidates macros used to generate assembly for compatibility across different CPUs or configs. A new header, asm-powerpc/asm-compat.h contains the main compatibility macros. It uses some preprocessor magic to make the macros suitable both for use in .S files, and in inline asm in .c files. Headers (bitops.h, uaccess.h, atomic.h, bug.h) which had their own such compatibility macros are changed to use asm-compat.h. ppc_asm.h is now for use in .S files *only*, and a #error enforces that. As such, we're a lot more careless about namespace pollution here than in asm-compat.h. While we're at it, this patch adds a call to the PPC405_ERR77 macro in futex.h which should have had it already, but didn't. Built and booted on pSeries, Maple and iSeries (ARCH=powerpc). Built for 32-bit powermac (ARCH=powerpc) and Walnut (ARCH=ppc). Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Move scanlog.c to platforms/pseriesDavid Gibson2005-11-102-0/+236
| | | | | | | | | | | scanlog.c is only compiled on pSeries. Thus, this patch moves it to platforms/pseries. Built and booted on pSeries LPAR (ARCH=powerpc and ARCH=ppc64). Built for iSeries (ARCH=powerpc). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge git://oak/home/sfr/kernels/iseries/workPaul Mackerras2005-11-103-5/+23
|\
| * powerpc: merge irq.cStephen Rothwell2005-11-091-0/+3
| | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: remove ppc_irq_dispatch_handlerStephen Rothwell2005-11-092-6/+5
| | | | | | | | | | | | | | Use __do_IRQ instead. The only difference is that every controller is now assumed to have an end() routine (only xics_8259 did not). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: allow iSeries to use IRQSTACKS againStephen Rothwell2005-11-091-1/+17
| | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* | ppc/powerpc: workarounds for old Open Firmware versionsPaul Mackerras2005-11-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds code to work around some problems with old versions of Open Firmware, such as on the early powermacs (7500 etc.) and the "Longtrail" CHRP machine. On these machines we have to claim the physical and virtual address ranges explicitly when claiming memory and then set up a V->P mapping. The Longtrail has more problems: setprop doesn't work, and we have to set an "allow-reclaim" variable to 0 in order to get claim on physical memory ranges to fail if the memory is already claimed. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] ppc64: Save & restore of PCI device BARSLinas Vepstas2005-11-101-1/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 14-eeh-device-bar-save.patch After a PCI device has been resest, the device BAR's and other config space info must be restored to the same state as they were in when the firmware first handed us this device. This will allow the PCI device driver, when restarted, to correctly recognize and set up the device. Tis patch saves the device config space as early as reasonable after the firmware has handed over the device. Te state resore funcion is inteded for use by the EEH recovery routines. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] ppc64: PCI reset support routinesLinas Vepstas2005-11-101-0/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 13-eeh-recovery-support-routines.patch EEH Recovery support routines This patch adds routines required to help drive the recovery of EEH-frozen slots. The main function is to drive the PCI #RST signal line high for a qurter of a second, and then allow for a second & a half of settle time. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] ppc64: PCI error event dispatcherLinas Vepstas2005-11-103-124/+171
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 12-eeh-event-dispatcher.patch ppc64: EEH Recovery dispatcher thread This patch adds a mechanism to create recovery threads when an EEH event is received. Since an EEH freeze state may be detected within an interrupt context, we need to get out of the interrupt context before starting recovery. This dispatcher does this in two steps: first, it uses a workqueue to get out, and then lanuches a kernel thread, so that the recovery routine can sleep for exteded periods without upseting the keventd. A kernel thread is created with each EEH event, rather than having one long-running daemon started at boot time. This is because it is anticipated that EEH events will be very rare (very very rare, ideally) and so its pointless to cluter the process tables with a daemon that will almost never run. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] ppc64: move eeh.c to powerpc directory from ppc64Linas Vepstas2005-11-102-0/+1094
| | | | | | | | | | | | | | | | | | | | 11-eeh-move-to-powerpc.patch Move arch/ppc64/kernel/eeh.c to arch//powerpc/platforms/pseries/eeh.c No other changes (except for Makefile to build it) Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] sched: resched and cpu_idle reworkNick Piggin2005-11-092-16/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make some changes to the NEED_RESCHED and POLLING_NRFLAG to reduce confusion, and make their semantics rigid. Improves efficiency of resched_task and some cpu_idle routines. * In resched_task: - TIF_NEED_RESCHED is only cleared with the task's runqueue lock held, and as we hold it during resched_task, then there is no need for an atomic test and set there. The only other time this should be set is when the task's quantum expires, in the timer interrupt - this is protected against because the rq lock is irq-safe. - If TIF_NEED_RESCHED is set, then we don't need to do anything. It won't get unset until the task get's schedule()d off. - If we are running on the same CPU as the task we resched, then set TIF_NEED_RESCHED and no further action is required. - If we are running on another CPU, and TIF_POLLING_NRFLAG is *not* set after TIF_NEED_RESCHED has been set, then we need to send an IPI. Using these rules, we are able to remove the test and set operation in resched_task, and make clear the previously vague semantics of POLLING_NRFLAG. * In idle routines: - Enter cpu_idle with preempt disabled. When the need_resched() condition becomes true, explicitly call schedule(). This makes things a bit clearer (IMO), but haven't updated all architectures yet. - Many do a test and clear of TIF_NEED_RESCHED for some reason. According to the resched_task rules, this isn't needed (and actually breaks the assumption that TIF_NEED_RESCHED is only cleared with the runqueue lock held). So remove that. Generally one less locked memory op when switching to the idle thread. - Many idle routines clear TIF_POLLING_NRFLAG, and only set it in the inner most polling idle loops. The above resched_task semantics allow it to be set until before the last time need_resched() is checked before going into a halt requiring interrupt wakeup. Many idle routines simply never enter such a halt, and so POLLING_NRFLAG can be always left set, completely eliminating resched IPIs when rescheduling the idle task. POLLING_NRFLAG width can be increased, to reduce the chance of resched IPIs. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Con Kolivas <kernel@kolivas.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] sched: disable preempt in idle tasksNick Piggin2005-11-092-0/+8
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run idle threads with preempt disabled. Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()). How did it ever work before? Might fix the CPU hotplugging hang which Nigel Cunningham noted. We think the bug hits if the idle thread is preempted after checking need_resched() and before going to sleep, then the CPU offlined. After calling stop_machine_run, the CPU eventually returns from preemption and into the idle thread and goes to sleep. The CPU will continue executing previous idle and have no chance to call play_dead. By disabling preemption until we are ready to explicitly schedule, this bug is fixed and the idle threads generally become more robust. From: alexs <ashepard@u.washington.edu> PPC build fix From: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> MIPS build fix Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* powerpc: Fix typo in pmac_cpufreq_resumePaul Mackerras2005-11-081-1/+1
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc64: SMU based macs cpufreq supportBenjamin Herrenschmidt2005-11-084-22/+334
| | | | | | | | CPU freq support using 970FX powertune facility for iMac G5 and SMU based single CPU desktop. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge ../linux-2.6Paul Mackerras2005-11-081-4/+2
|\
| * [PATCH] kfree cleanup: archJesper Juhl2005-11-071-4/+2
| | | | | | | | | | | | | | | | | | | | | | This is the arch/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in arch/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge ../linux-2.6Paul Mackerras2005-11-077-156/+170
|\ \ | |/
| * [PATCH] ppc64: support 64k pagesBenjamin Herrenschmidt2005-11-067-156/+170
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds a new CONFIG_PPC_64K_PAGES which, when enabled, changes the kernel base page size to 64K. The resulting kernel still boots on any hardware. On current machines with 4K pages support only, the kernel will maintain 16 "subpages" for each 64K page transparently. Note that while real 64K capable HW has been tested, the current patch will not enable it yet as such hardware is not released yet, and I'm still verifying with the firmware architects the proper to get the information from the newer hypervisors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] powerpc: Make ppc_md.set_dabr non 64-bit specificMichael Ellerman2005-11-072-17/+10
| | | | | | | | | | | | | | | | | | | | Define ppc_md.set_dabr for both 32 + 64 bit. Cleanup the implementation for pSeries also, it was needlessly complex. Now we just do two firmware tests at setup time, and use one of two functions, rather than using one function and testing on every call. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Various UP build fixesPaul Mackerras2005-11-073-0/+3
| | | | | | | | | | | | | | | | | | Mostly this involves adding #include <asm/smp.h>, since that defines things like boot_cpuid[_phys] and [gs]et_hard_smp_processor_id, which are SMP-related but still needed on UP. This incorporates fixes posted by Olof Johansson and Heikki Lindholm. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Kill ppcdebugDavid Gibson2005-11-077-50/+2
|/ | | | | | | | | | | | | | | | The ancient ppcdebug/PPCDBG mechanism is now only used in two places. First, in the hash setup code, one of the bits allows the size of the hash table to be reduced by a factor of 8 - which would be better accomplished with a command line option for that purpose. The other was a bunch of bus walking related messages in the iSeries code, which would seem to be insufficient reason to keep the mechanism. This patch removes the last traces of this mechanism. Built and booted on iSeries and pSeries POWER5 LPAR (ARCH=powerpc). Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
OpenPOWER on IntegriCloud