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* [PATCH] Clean up the old digi support and rescue itAlan Cox2005-09-07
| | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove register_ioctl32_conversion and unregister_ioctl32_conversionAdrian Bunk2005-09-07
| | | | | | | | All users have been converted. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kill bio->bi_setPeter Osterlund2005-09-07
| | | | | | | | | | | | | | | | Jens: ->bi_set is totally unnecessary bloat of struct bio. Just define a proper destructor for the bio and it already knows what bio_set it belongs too. Peter: Fixed the bugs. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Peter Osterlund <petero2@telia.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Strip local symbols from kallsymsRalf Baechle2005-09-07
| | | | | | | | Local symbols generated by gcc start with a `$'; no point in including them in the kernel. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs/jbd/: cleanupsAdrian Bunk2005-09-07
| | | | | | | | | | | | | | | | This patch contains the following cleanups: - make needlessly global functions static - journal.c: remove the unused global function __journal_internal_check and move the check to journal_init - remove the following write-only global variable: - journal.c: current_journal - remove the following unneeded EXPORT_SYMBOL: - journal.c: journal_recover Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] compat: be more consistent about [ug]id_tStephen Rothwell2005-09-07
| | | | | | | | | | | | | | | | | | | | When I first wrote the compat layer patches, I was somewhat cavalier about the definition of compat_uid_t and compat_gid_t (or maybe I just misunderstood :-)). This patch makes the compat types much more consistent with the types we are being compatible with and hopefully will fix a few bugs along the way. compat type type in compat arch __compat_[ug]id_t __kernel_[ug]id_t __compat_[ug]id32_t __kernel_[ug]id32_t compat_[ug]id_t [ug]id_t The difference is that compat_uid_t is always 32 bits (for the archs we care about) but __compat_uid_t may be 16 bits on some. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] use select in sound/isa/KconfigBodo Eggert2005-09-07
| | | | | | | | | | | | | In sound/isa/Kconfig, select ISAPNP and depend on ISAPNP are intermixed, resulting in funny behaviour. (Soundcarts get selectable if other soundcards are selected). This patch changes the "depend on ISAPNP"s to select. Signed-Off-By: Bodo Eggert <7eggert@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] inotify speedupJohn McCutchan2005-09-07
| | | | | | | | Bypass an inotify-related fastpath spinlock and several function calls on systems which have no inotify watches registered. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] NMI: Update NMI users of RCU to use new APIPaul E. McKenney2005-09-07
| | | | | | | | | | | | | Uses of RCU for dynamically changeable NMI handlers need to use the new rcu_dereference() and rcu_assign_pointer() facilities. This change makes it clear that these uses are safe from a memory-barrier viewpoint, but the main purpose is to document exactly what operations are being protected by RCU. This has been tested on x86 and x86-64, which are the only architectures affected by this change. Signed-off-by: <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Provide better printk() support for SMP machinesDavid Howells2005-09-07
| | | | | | | | | | | | | | The attached patch prevents oopses interleaving with characters from other printks on other CPUs by only breaking the lock if the oops is happening on the machine holding the lock. It might be better if the oops generator got the lock and then called an inner vprintk routine that assumed the caller holds the lock, thus making oops reports "atomic". Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] More __read_mostly variablesChristoph Lameter2005-09-07
| | | | | | | | | | | | | | | Move some more frequently read variables that showed up during some of our performance tests as sometimes ending up in hot cachelines to the read_mostly section. Fix: Move the __read_mostly from before hpet_usec_quotient to follow the variable like the other uses of __read_mostly. Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Christoph Lameter <christoph@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kallsyms: change compression algorithmPaulo Marques2005-09-07
| | | | | | | | | | | | | | | | | | | | | This patch changes the way the compression algorithm works. The base algorithm is similiar to the previous but we force the compressed token size to 2. Having a fixed size compressed token allows for a lot of optimizations, and that in turn allows this code to run over *all* the symbols faster than it did before over just a subset. Having it work over all the symbols will make it behave better when symbols change positions between passes, and the "inconsistent kallsyms" messages should become less frequent. In my tests the compression ratio was degraded by about 0.5%, but the results will depend greatly on the number of symbols to compress. Signed-off-by: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfsTom Zanussi2005-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here's the latest version of relayfs, against linux-2.6.11-mm2. I'm hoping you'll consider putting this version back into your tree - the previous rounds of comment seem to have shaken out all the API issues and the number of comments on the code itself have also steadily dwindled. This patch is essentially the same as the relayfs redux part 5 patch, with some minor changes based on reviewer comments. Thanks again to Pekka Enberg for those. The patch size without documentation is now a little smaller at just over 40k. Here's a detailed list of the changes: - removed the attribute_flags in relay open and changed it to a boolean specifying either overwrite or no-overwrite mode, and removed everything referencing the attribute flags. - added a check for NULL names in relayfs_create_entry() - got rid of the unnecessary multiple labels in relay_create_buf() - some minor simplification of relay_alloc_buf() which got rid of a couple params - updated the Documentation In addition, this version (through code contained in the relay-apps tarball linked to below, not as part of the relayfs patch) tries to make it as easy as possible to create the cooperating kernel/user pieces of a typical and common type of logging application, one where kernel logging is kicked off when a user space data collection app starts and stops when the collection app exits, with the data being automatically logged to disk in between. To create this type of application, you basically just include a header file (relay-app.h, included in the relay-apps tarball) in your kernel module, define a couple of callbacks and call an initialization function, and on the user side call a single function that sets up and continuously monitors the buffers, and writes data to files as it becomes available. Channels are created when the collection app is started and destroyed when it exits, not when the kernel module is inserted, so different channel buffer sizes can be specified for each separate run via command-line options. See the README in the relay-apps tarball for details. Also included in the relay-apps tarball are a couple examples demonstrating how you can use this to create quick and dirty kernel logging/debugging applications. They are: - tprintk, short for 'tee printk', which temporarily puts a kprobe on printk() and writes a duplicate stream of printk output to a relayfs channel. This could be used anywhere there's printk() debugging code in the kernel which you'd like to exercise, but would rather not have your system logs cluttered with debugging junk. You'd probably want to kill klogd while you do this, otherwise there wouldn't be much point (since putting a kprobe on printk() doesn't change the output of printk()). I've used this method to temporarily divert the packet logging output of the iptables LOG target from the system logs to relayfs files instead, for instance. - klog, which just provides a printk-like formatted logging function on top of relayfs. Again, you can use this to keep stuff out of your system logs if used in place of printk. The example applications can be found here: http://prdownloads.sourceforge.net/dprobes/relay-apps.tar.gz?download From: Christoph Hellwig <hch@lst.de> avoid lookup_hash usage in relayfs Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] detect soft lockupsIngo Molnar2005-09-07
| | | | | | | | | | | | | | | | | | | This patch adds a new kernel debug feature: CONFIG_DETECT_SOFTLOCKUP. When enabled then per-CPU watchdog threads are started, which try to run once per second. If they get delayed for more than 10 seconds then a callback from the timer interrupt detects this condition and prints out a warning message and a stack dump (once per lockup incident). The feature is otherwise non-intrusive, it doesnt try to unlock the box in any way, it only gets the debug info out, automatically, and on all CPUs affected by the lockup. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-Off-By: Matthias Urlichs <smurf@smurf.noris.de> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] FUTEX_WAKE_OP: pthread_cond_signal() speedupJakub Jelinek2005-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ATM pthread_cond_signal is unnecessarily slow, because it wakes one waiter (which at least on UP usually means an immediate context switch to one of the waiter threads). This waiter wakes up and after a few instructions it attempts to acquire the cv internal lock, but that lock is still held by the thread calling pthread_cond_signal. So it goes to sleep and eventually the signalling thread is scheduled in, unlocks the internal lock and wakes the waiter again. Now, before 2003-09-21 NPTL was using FUTEX_REQUEUE in pthread_cond_signal to avoid this performance issue, but it was removed when locks were redesigned to the 3 state scheme (unlocked, locked uncontended, locked contended). Following scenario shows why simply using FUTEX_REQUEUE in pthread_cond_signal together with using lll_mutex_unlock_force in place of lll_mutex_unlock is not enough and probably why it has been disabled at that time: The number is value in cv->__data.__lock. thr1 thr2 thr3 0 pthread_cond_wait 1 lll_mutex_lock (cv->__data.__lock) 0 lll_mutex_unlock (cv->__data.__lock) 0 lll_futex_wait (&cv->__data.__futex, futexval) 0 pthread_cond_signal 1 lll_mutex_lock (cv->__data.__lock) 1 pthread_cond_signal 2 lll_mutex_lock (cv->__data.__lock) 2 lll_futex_wait (&cv->__data.__lock, 2) 2 lll_futex_requeue (&cv->__data.__futex, 0, 1, &cv->__data.__lock) # FUTEX_REQUEUE, not FUTEX_CMP_REQUEUE 2 lll_mutex_unlock_force (cv->__data.__lock) 0 cv->__data.__lock = 0 0 lll_futex_wake (&cv->__data.__lock, 1) 1 lll_mutex_lock (cv->__data.__lock) 0 lll_mutex_unlock (cv->__data.__lock) # Here, lll_mutex_unlock doesn't know there are threads waiting # on the internal cv's lock Now, I believe it is possible to use FUTEX_REQUEUE in pthread_cond_signal, but it will cost us not one, but 2 extra syscalls and, what's worse, one of these extra syscalls will be done for every single waiting loop in pthread_cond_*wait. We would need to use lll_mutex_unlock_force in pthread_cond_signal after requeue and lll_mutex_cond_lock in pthread_cond_*wait after lll_futex_wait. Another alternative is to do the unlocking pthread_cond_signal needs to do (the lock can't be unlocked before lll_futex_wake, as that is racy) in the kernel. I have implemented both variants, futex-requeue-glibc.patch is the first one and futex-wake_op{,-glibc}.patch is the unlocking inside of the kernel. The kernel interface allows userland to specify how exactly an unlocking operation should look like (some atomic arithmetic operation with optional constant argument and comparison of the previous futex value with another constant). It has been implemented just for ppc*, x86_64 and i?86, for other architectures I'm including just a stub header which can be used as a starting point by maintainers to write support for their arches and ATM will just return -ENOSYS for FUTEX_WAKE_OP. The requeue patch has been (lightly) tested just on x86_64, the wake_op patch on ppc64 kernel running 32-bit and 64-bit NPTL and x86_64 kernel running 32-bit and 64-bit NPTL. With the following benchmark on UP x86-64 I get: for i in nptl-orig nptl-requeue nptl-wake_op; do echo time elf/ld.so --library-path .:$i /tmp/bench; \ for j in 1 2; do echo ( time elf/ld.so --library-path .:$i /tmp/bench ) 2>&1; done; done time elf/ld.so --library-path .:nptl-orig /tmp/bench real 0m0.655s user 0m0.253s sys 0m0.403s real 0m0.657s user 0m0.269s sys 0m0.388s time elf/ld.so --library-path .:nptl-requeue /tmp/bench real 0m0.496s user 0m0.225s sys 0m0.271s real 0m0.531s user 0m0.242s sys 0m0.288s time elf/ld.so --library-path .:nptl-wake_op /tmp/bench real 0m0.380s user 0m0.176s sys 0m0.204s real 0m0.382s user 0m0.175s sys 0m0.207s The benchmark is at: http://sourceware.org/ml/libc-alpha/2005-03/txt00001.txt Older futex-requeue-glibc.patch version is at: http://sourceware.org/ml/libc-alpha/2005-03/txt00002.txt Older futex-wake_op-glibc.patch version is at: http://sourceware.org/ml/libc-alpha/2005-03/txt00003.txt Will post a new version (just x86-64 fixes so that the patch applies against pthread_cond_signal.S) to libc-hacker ml soon. Attached is the kernel FUTEX_WAKE_OP patch as well as a simple-minded testcase that will not test the atomicity of the operation, but at least check if the threads that should have been woken up are woken up and whether the arithmetic operation in the kernel gave the expected results. Acked-by: Ingo Molnar <mingo@redhat.com> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Jamie Lokier <jamie@shareable.org> Cc: Rusty Russell <rusty@rustcorp.com.au> 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>
* [PATCH] 3c59x PM fixesRafael J. Wysocki2005-09-07
| | | | | | | | | | This patch adds some missing pci-related calls to the suspend and resume routines of the 3c59x driver. It also makes the driver free/request IRQ on suspend/resume, in accordance with the proposal at: http://lists.osdl.org/pipermail/linux-pm/2005-May/000955.html Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] swsusp: update documentationPavel Machek2005-09-07
| | | | | | | | | This updates documentation a bit (mostly removing obsolete stuff), and marks swsusp as no longer experimental in config. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Fix off by one in e820_mappedEric W. Biederman2005-09-07
| | | | | | | | | | This allows a valid iommu placed immediately after memory to work, to be recognized as after the last byte of memory and not overlapping it. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: create sysfs entries for cpu only for present cpusAshok Raj2005-09-07
| | | | | | | | | | | Need to create sysfs only for cpus that are present. Without which we see NR_CPUS entries created when we have CONFIG_HOTPLUG and CONFIG_HOTPLUG_CPU enabled. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Fix cluster mode send_IPI_allbutself to use get_cpu()/put_cpu()Ashok Raj2005-09-07
| | | | | | | | | | Need to ensure we dont get prempted when we clear ourself from mask when using clustered mode genapic code. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: prefetchw() can fall back to prefetch() if !3DNOWEric Dumazet2005-09-07
| | | | | | | | | | | | | This is a multi-part message in MIME format. If the cpu lacks 3DNOW feature, we can use a normal prefetcht0 instruction instead of NOP5. "prefetchw (%rxx)" and "prefetcht0 (%rxx)" have the same length, ranging from 3 to 5 bytes depending on the register. So this patch even helps AMD64, shortening the length of the code. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: print processor number in show_regsZwane Mwaikambo2005-09-07
| | | | | | | | | | | | | | Up to date I've been using the GS value to determine the processor number in dumps from show_regs, however this can be cumbersome to do if you don't have the vmlinux to verify with the address of cpu_pda, how about the following? I considered using hard_smp_processor_id for robustness but we already dereference current so we're already relying on MSR_GS_BASE being sane. Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86/x86_64: deferred handling of writes to /proc/irqxx/smp_affinityAshok Raj2005-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When handling writes to /proc/irq, current code is re-programming rte entries directly. This is not recommended and could potentially cause chipset's to lockup, or cause missing interrupts. CONFIG_IRQ_BALANCE does this correctly, where it re-programs only when the interrupt is pending. The same needs to be done for /proc/irq handling as well. Otherwise user space irq balancers are really not doing the right thing. - Changed pending_irq_balance_cpumask to pending_irq_migrate_cpumask for lack of a generic name. - added move_irq out of IRQ_BALANCE, and added this same to X86_64 - Added new proc handler for write, so we can do deferred write at irq handling time. - Display of /proc/irq/XX/smp_affinity used to display CPU_MASKALL, instead it now shows only active cpu masks, or exactly what was set. - Provided a common move_irq implementation, instead of duplicating when using generic irq framework. Tested on i386/x86_64 and ia64 with CONFIG_PCI_MSI turned on and off. Tested UP builds as well. MSI testing: tbd: I have cards, need to look for a x-over cable, although I did test an earlier version of this patch. Will test in a couple days. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Acked-by: Zwane Mwaikambo <zwane@holomorphy.com> Grudgingly-acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Coywolf Qi Hunt <coywolf@lovecn.org> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: add missing sysfs node for ocp_func_emac_data.phy_feat_excEugene Surovegin2005-09-07
| | | | | | | | Add sysfs node for ocp_func_emac_data.phy_feat_exc field. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix ocp_device_suspend to use pm_message_t instead of u32Eugene Surovegin2005-09-07
| | | | | | | | | Recent "u32 -> pm_message_t" change triggered hidden bug in ocp_device_suspend. Fix it to correctly use pm_message_t instead of u32. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/ppc64-2.6 Linus Torvalds2005-09-06
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| * [PATCH] remove linux/version.h include from arch/ppc64Olaf Hering2005-09-06
| | | | | | | | | | | | | | | | | | Changing CONFIG_LOCALVERSION rebuilds too much, for no apparent reason. Use system_utsname for progress and debug header. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] Invert sense of SLB class bitDavid Gibson2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | Currently, we set the class bit in kernel SLB entries, and clear it on user SLB entries. On POWER5, ERAT entries created in real mode have the class bit clear. So to avoid flushing kernel ERAT entries on each context switch, this patch inverts our usage of the class bit, setting it on user SLB entries and clearing it on kernel SLB entries. Booted on POWER5 and G5. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Fix build with oprofile disabledAnton Blanchard2005-09-06
| | | | | | | | | | | | | | Fix build with oprofile disabled. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Move oprofile_model into cpu feature structAnton Blanchard2005-09-06
| | | | | | | | | | | | | | Move oprofile_model into cpu feature struct. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Move oprofile_impl.h into include/asm-ppc64Anton Blanchard2005-09-06
| | | | | | | | | | | | | | | | Move oprofile_impl.h into include/asm-ppc64 in preparation for moving oprofile_model into cpu feature struct. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Add oprofile cpu_type to cpu feature structAnton Blanchard2005-09-06
| | | | | | | | | | | | | | Add oprofile cpu_type to cpu feature struct. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Use num_pmcs in oprofile codeAnton Blanchard2005-09-06
| | | | | | | | | | | | | | Change oprofile to use num_pmcs from the cpu feature struct. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: remove CPU_FTR_PMC8Anton Blanchard2005-09-06
| | | | | | | | | | | | | | | | Remove the CPU_FTR_PMC8 feature now we encode the number of PMCs directly. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: add number of PMCs to cputableAnton Blanchard2005-09-06
| | | | | | | | | | | | | | Add a field in the cputable struct to store the number of PMCs. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Allow world readable /proc/ppc64/lparcfgWim Coekaerts2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | I would like to be able to read the lparcfg data from any user so we can make "intelligent" decisions based on underlying attributes when running in lpars. Yes there's software that likes to do this :) and runs as non-root. It's very similar to say VM where you can get CP to provide feedback of the real hardware inside a VM guest. Signed-off-by: Wim Coekaerts <wim.coekaerts@oracle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: remove use of asm/segment.hKumar Gala2005-09-06
| | | | | | | | | | | | | | Removed PPC64 architecture specific users of asm/segment.h. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc/ppc64: Merge more include filesJon Loeliger2005-09-06
| | | | | | | | | | | | | | | | | | This patch merges several include files from asm-ppc and asm-ppc64 into the new asm-powerpc. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] Move 3 more headers to asm-powerpcBecky Bruce2005-09-06
| | | | | | | | | | | | | | | | | | Merged several nearly-identical header files from asm-ppc and asm-ppc64 into asm-powerpc. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: speedup cmpxchgAnton Blanchard2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cmpxchg has the following code: __typeof__(*(ptr)) _o_ = (o); __typeof__(*(ptr)) _n_ = (n); Unfortunately it makes gcc 4.0 store and load the variables to the stack. Eg in atomic_dec_and_test we get: stw r10,112(r1) stw r9,116(r1) lwz r9,112(r1) lwz r0,116(r1) x86 is just casting the values so do that instead. Also change __xchg* and __cmpxchg* to take unsigned values, removing a few sign extensions. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: poison initmemAnton Blanchard2005-09-06
| | | | | | | | | | | | | | Poison initmem after we free it so we catch use after free issues. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: systemcfg is now a pointerJimi Xenidis2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | The following patch fixes 2 issues: 1) use PLATFORM_LPAR bit to test if running in LPAR mode 2) systemcfg pointer is assigned from static data in arch/ppc64/kernel/pacaData.c. The file arch/ppc64/kernel/head.S now refers to is using the GOT binding to the pointer and hence must deref it. Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Consolidate early console and PPCDBG codeMilton Miller2005-09-06
| | | | | | | | | | | | | | | | Consolidate the early console and PPCDBG code in udbg.c Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Remove old includesMilton Miller2005-09-06
| | | | | | | | | | | | | | | | Trim some no longer needed includes from udbg.c and friends. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Take udbg out of ppc_mdMilton Miller2005-09-06
| | | | | | | | | | | | | | | | | | Take udbg out of ppc_md. Allows us to not overwrite early udbg inits when assigning ppc_md. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Split SCC and 15550 udbg codeMilton Miller2005-09-06
| | | | | | | | | | | | | | | | | | Split scc and 15550 functions from udbg each into their own file. This makes them more symetric with the lpar and btext code. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Make udbg_init_uart set the ppc_md udbg methods.Milton Miller2005-09-06
| | | | | | | | | | | | | | | | make udbg_init_uart set the ppc_md udbg methods. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Clean up CR handlingMilton Miller2005-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | Make the 16550 and real mode 16550 use tail recursion like the scc code instead of repeating the routine except for the character sent. Gcc recoginizes the tail recursion and handles it efficently without stack allocations. The maple real putc shrinks from 188 to 104 bytes of instructions. udbg_putc drops from 188 to 140 bytes. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: Remove dummy getc routinesMilton Miller2005-09-06
| | | | | | | | | | | | | | | | Now that xmon is fixed we should not need the dummy getc routines. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] ppc64: dont bypass ppc_md.udbg* functionsMilton Miller2005-09-06
| | | | | | | | | | | | | | | | udbg_getc_poll is a ppc_md function. don't call directly into udbg.c Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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