- 20 Sep, 2006 1 commit
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Stephen Rothwell authored
If we build a pSeries/iSeries combined kernel, we will need this. Signed-off-by:Stephen Rothwell <sfr@canb.auug.org.au>
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- 14 Sep, 2006 2 commits
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Kim Phillips authored
Fix MPC8349EMDS dts PCI interrupt-map values for IDSEL 0x18 per Tanya's catch. Signed-off-by:
Kim Phillips <kim.phillips@freescale.com> Signed-off-by:
Tanya Jiang <tanya.jiang@freescale.com> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Olof Johansson authored
This fixes a compile error that only surfaces on CONFIG_SMP=n builds; <asm/hvcall.h> seems to get pulled in through another header file for SMP builds. This problem was introduced by the hvcall stats patch. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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- 13 Sep, 2006 37 commits
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Paul Mackerras authored
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds authored
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruption [POWERPC] Fix MMIO ops to provide expected barrier behaviour [POWERPC] Fix interrupt clearing in kdump shutdown sequence [POWERPC] update prep_defconfig [POWERPC] kdump: Support kernels having 64k page size. [POWERPC] Implement PowerPC futex_atomic_cmpxchg_inatomic(). [POWERPC] Add new, missing argument to of_irq_map_raw() for 86xx. [POWERPC] Update defconfigs
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Mike Miller authored
Add support for new hardware and bumps the version to 3.6.10. It seems there were several changes introduced including soft_irq. I decided to bump the major number to reflect these changes. Since we're still supporting older vendor kernels I need some way differentiate between kernel versions <=2.6.10 and newer kernels >=2.6.16. Signed-off-by:
Mike Miller <mike.miller@hp.com> Cc: Jens Axboe <axboe@suse.de> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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David Woodhouse authored
MIPS asm/page.h unconditionally includes <asm-generic/memory_model.h>, which doesn't exist in userspace. Move an #endif /* __KERNEL__ */ down a few lines to prevent that. Also, remove the broken definition of PAGE_SIZE which is never going to be correct -- in the absence of PAGE_SIZE, non-broken userspace will fall back to using sysconf() or getpagesize() instead. Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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David Woodhouse authored
The header file <linux/pfn.h> doesn't exist in userspace and probably shouldn't -- but it's used unconditionally in <asm-i386/setup.h>. Protect it with #ifdef __KERNEL__ and move setup.h from $(header-y) to $(unifdef-y) in Kbuild accordingly. Signed-off-by:
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David Woodhouse authored
Some files which don't exist in userspace were being included unconditionally in asm-i386/elf.h. Move the offending #includes down a few lines so that they're protected by #ifdef __KERNEL__ In fact, we probably want to kill off all userspace use of asm/elf.h -- but we aren't there yet, so we should at least make it possible to include it for now. Signed-off-by:
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David Woodhouse authored
Because <linux/linkage.h> doesn't exist in userspace, it should be only included from within #ifdef __KERNEL__. Move the corresponding #include Signed-off-by:
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David Woodhouse authored
There's useful stuff in <linux/timex.h> but <asm/timex.h> has nothing for userspace. Stop exporting it, and include it only from within the existing #ifdef __KERNEL__ part of <linux/timex.h> This fixes a 'make headers_check' failure on i386 because asm-i386/timex.h includes both asm-i386/tsc.h and asm-i386/processor.h, neither of which are exported to userspace. It's not entirely clear _why_ it includes either of these, but it does. Signed-off-by:
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David Woodhouse authored
We don't need any of this crap included from the user-visible part of nfs_fs.h -- remove it all. In fact, we probably don't need anything but NFS_SUPER_MAGIC to be defined; is there any need for anything else? And magic numbers should probably move to <linux/magic.h> rather than being strewn across various fs-specific include files which exist in userspace for solely that purpose. With this patch, 'make header_check' works again at least on PowerPC. Signed-off-by:
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Alexey Dobriyan authored
Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Alexey Dobriyan authored
The following combinations of pp-tokens are used #include #include # include so, script'd better check for all of them. Signed-off-by:
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Jeremy Fitzhardinge authored
Claim an ID number for Xen in the LOADER_TYPE field. Also, keep the table in zero-page.txt consistent with boot.txt. [hpa says: 6 was skipped because I couldn't rule out that it hadn't been unofficially used. It seemed easier to skip it for now.] Signed-off-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Acked-by:
"H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
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Oleg Nesterov authored
rcu_do_batch() decrements rdp->qlen with irqs enabled. This is not good, it can also be modified by call_rcu() from interrupt. Decrement ->qlen once with irqs disabled, after a main loop. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Cc: Dipankar Sarma <dipankar@in.ibm.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by:
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Stefan Richter authored
Fixup for lockdep enabled kernels: Annotate an on-stack completion. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by:
Ingo Molnar <mingo@elte.hu> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by:
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Michael De Backer authored
Configuration bits are not set properly for DMA on some chipset revisions. It has already been corrected for M5229 (rev c7) but not for M5229 (rev c8). This leads to the bug described at http://bugzilla.kernel.org/show_bug.cgi?id=5786 (lost interrupt + ide bus hangs). Signed-off-by:
Michael De Backer <micdb@skynet.be> Acked-by:
Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
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Greg KH authored
The DCO does not mean anything if we allow anonymous contributors to the kernel. As this is an open source project, we need to do everything in the open. Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by:
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Ingo Molnar authored
Miles Lane reported the "BUG: MAX_STACK_TRACE_ENTRIES too low!" message, which means that during normal use his system produced enough lockdep events so that the 128-thousand entries stack-trace array got exhausted. Double the size of the array. Signed-off-by:
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Tejun Heo authored
0x848a in ID word 0 indicates CFA device iff the ID data is obtained from IDENTIFY DEVICE. For ATAPI devices, 0x848a in ID work 0 indicates valid ATAPI device. Fix sanity check in ata_dev_read_id() such that ATAPI devices reporting 0x848a in ID word 0 is not handled as error. The problem is identified by J.A. Magallon with HL-DT-ST DVDRAM GSA-4120B. Signed-off-by:
Tejun Helo <htejun@gmail.com> Cc: J.A. Magallon <jamagallon@ono.com> Acked-by:
Jeff Garzik <jeff@garzik.org> Acked-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Benjamin Herrenschmidt authored
It seems that the occasional data corruption observed with the tg3 driver wasn't due to missing barriers after all, but rather seems to be due to the DART (= IOMMU) in the U4 northbridge reading stale IOMMU table entries from memory due to a race. This fixes it by making the CPU read the entry back from memory before using it. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Paul Mackerras authored
This changes the writeX family of functions to have a sync instruction before the MMIO store rather than after, because the generally expected behaviour is that the device receiving the MMIO store can be guaranteed to see the effects of any preceding writes to normal memory. To preserve ordering between writeX and readX, and to preserve ordering between preceding stores and the readX, the readX family of functions have had an sync added before the load. Although writeX followed by spin_unlock is not officially guaranteed to keep the writeX inside the spin-locked region unless an mmiowb() is used, there are currently drivers that depend on the previous behaviour on powerpc, which was that the mmiowb wasn't actually required. Therefore we have a per-cpu flag that is set by writeX, cleared by __raw_spin_lock and mmiowb, and tested by __raw_spin_unlock. If it is set, __raw_spin_unlock does a sync and clears it. This changes both 32-bit and 64-bit readX/writeX. 32-bit already has a sync in __raw_spin_unlock (since lwsync doesn't exist on 32-bit), and thus doesn't need the per-cpu flag. Tested on G5 (PPC970) and POWER5. Signed-off-by: -
David Howells authored
Export copy_4K_page() for use by modules via copy_page() (such as CacheFiles). Signed-Off-By:
David Howells <dhowells@redhat.com> Signed-off-by:
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Olaf Hering authored
xmon does not print a backtrace per default. This is bad on systems with USB keyboard, the most needed info about the crash is lost. print a backtrace during the very first xmon entry. Booting with xmon=nobt disables the autobacktrace functionality. Signed-off-by:
Olaf Hering <olaf@aepfle.de> Signed-off-by:
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Olof Johansson authored
No other tty driver will print on the console when the open of it fails. On systems that happen to be configured for both ttyS0 and hvc0 console, this will keep flooding the console output. This is most likely to happen with systems booted between with and without hypervisor from the same filesystem. Let's just remove it. When it's really needed (i.e. when the open fails and someone is trying to debug it), noone will see the output anyway. And init will report the opens failing in due time through the syslog. Signed-off-by:
Ryan S. Arnold <rsa@us.ibm.com> Signed-off-by:
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Josh Boyer authored
Fix the following whitespace warnings when compiling with ARCH=ppc arch/ppc/Kconfig:1207:warning: leading whitespace ignored arch/ppc/Kconfig:1226:warning: leading whitespace ignored arch/ppc/Kconfig:1231:warning: leading whitespace ignored Also fix a typo ("Supprt"). Signed-off-by:Josh Boyer <jdub@us.ibm.com> Signed-off-by:
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Mike Kravetz authored
Add instrumentation for hypervisor calls on pseries. Call statistics include number of calls, wall time and cpu cycles (if available) and are made available via debugfs. Instrumentation code is behind the HCALL_STATS config option and has no impact if not enabled. Signed-off-by:
Mike Kravetz <kravetz@us.ibm.com> Signed-off-by:
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Olof Johansson authored
Maintainer entry for PWRficient Signed-off-by:
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Olof Johansson authored
Base patch for PA6T and PA6T-1682M. This introduces the arch/powerpc/platform/pasemi directory, together with basic implementations for various setup. Much of this was based on other platform code, i.e. Maple, etc. Signed-off-by:
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Olof Johansson authored
Introduce PWRficient PA6T cputable entries and feature bits. Signed-off-by:
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Olof Johansson authored
The performance monitor implementation (including CTRL register behaviour) is just included in PPC v2 as an example, it's not truly part of the base. It's actually a somewhat misleading feature, but I'll leave that be for now: The presence of the register is not what the feature bit is used for, but instead it's used to determine if it contains the runlatch bit for idle reporting of the performance monitor. For alternative implementations, the register might still exist but the bit might have different meaning (or no meaning at all). For now, split it off and don't include it in CPU_FTR_PPCAS_ARCH_V2_BASE. Signed-off-by:
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Olof Johansson authored
Reduce default cacheline size on 64-bit powerpc from 128 bytes to 64. This is the architected minimum. In most cases we'll still end up using cache line information from the device tree, but defaults are used during early boot and doing a few dcbst/icbi's too many there won't do any harm. Signed-off-by:
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Josh Boyer authored
The following patch allows XMON to run on the 4xx platform. Tested on Walnut, Ebony, and Nova (440GX based) eval boards. 440EP, 440SP, and 440SPE boards should work as well. Patch is against 2.6.18-rc6. Signed-off-by:
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Corey Minyard authored
Allow the pm_power_off function variable in PPC to work as an override. This makes the function consistent with the other architectures and it allows generic poweroff operations (like those provided in IPMI systems) to work properly on PPC. Signed-off-by:
Corey Minyard <minyard@acm.org> Cc: Joseph Barnett <jbarnett@motorola.com> Signed-off-by:
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Will Schmidt authored
In an attempt to make it easier for a power5 optimized app to run on a power4 or a 970 or random earlier machine, this provides emulation of the popcntb instruction. Signed-off-by:
Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by:
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Michael Ellerman authored
As part of the new irq code pseries_kexec_cpu_down() was split into a xics and mpic version. The vpa unregister logic is now only done in the xics routine, and although that's ok in practice (we don't have SPLPAR machines with mpic), I'd rather have the two concepts stay separate. So move the vpa unregister into pseries_kexec_cpu_down(), which gets called by both the xics and mpic routines. This also gives us an obvious place to put any new kexec-down logic needed in future. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Mohan Kumar M authored
Call chip->eoi(irq) to clear any pending interrupt in case of kdump shutdown sequence. chip->end(irq) does not serve this purpose. Signed-off-by:
Mohan Kumar M <mohan@in.ibm.com> Signed-off-by:
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Olaf Hering authored
Update PReP defconfig, disable some drivers for hardware that is not used on those systems; enable SL82C105 IDE driver for Powerstack. Signed-off-by:
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Sachin P. Sant authored
This is required to generate proper core files using kdump on ppc64. Create a backup region of 64K size irrespective of the PAGE SIZE. At present 32K was used as backup size. In the case of 64K page size, second PT_LOAD segments starts at 32K and the first one is not page aligned. __ioremap() (crash_dump.c) fails if pfn = 0 which is the case for the second PT_LOAD segment. This is not an issue for 4K page size because the the first page (32K backup) is copied to second kernel memory and thus referencing with the second kernel pfn. Signed-off-by:
Sachin Sant <sachinp@in.ibm.com> Signed-off-by:
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