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2005-06-27[PATCH] pcmcia: match for fake CISDominik Brodowski
Add another match flag for devices needing a CIS override. The driver will only probe/attach if the CIS has been replaced before. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] pcmcia: check for invalid crc32 hashes in id_tablesDominik Brodowski
Check for invalid crc32 hashes in drivers' id_tables if CONFIG_PCMCIA_DEBUG is set. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] pcmcia: device and driver matchingDominik Brodowski
The actual matching of pcmcia drivers and pcmcia devices. The original version of this was written by David Woodhouse. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] pcmcia: hotplug event for PCMCIA socket devicesDominik Brodowski
Generate hotplug event for PCMCIA sockets being registered. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] pcmcia: hotplug event for PCMCIA devicesDominik Brodowski
Export information to /sbin/hotplug for PCMCIA devices: card_id, manf_id, func_id, bus_id (like pcmcia1.0) and crc32-hashes of the prod_id strings. Why not the prod_id strings themselves? a) They may contain all sorts of strange and difficult to handle characters, like " ". b) It's impossible to pass multiple strings to userspace. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] pci: yenta cardbus fixIvan Kokshaysky
On Mon, Jun 20, 2005 at 07:15:34PM +1000, Grant Coady wrote: > Yenta: CardBus bridge found at 0000:00:0b.0 [1179:0001] > yenta 0000:00:0b.0: Preassigned resource 0 busy, reconfiguring... In -mm1 the cardbus resources might be assigned in pci_assign_unassigned_resources() pass. From your dmesg: PCI: Bus 2, cardbus bridge: 0000:00:0b.0 IO window: 00002000-00002fff IO window: 00003000-00003fff PREFETCH window: 12000000-13ffffff MEM window: 14000000-15ffffff Then yenta_allocate_res() tries to assign these resources again and, naturally, fails. This adds check for already assigned cardbus resources. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27Commit the manual part of the input layer merge.Linus Torvalds
git did actually warn me about the fact that I hadn't actually done an "update-cache" on these two files, but the warning was at the bottom of a list of all the files that _did_ change in the merge, so I never noticed. My bad.
2005-06-27[PATCH] ide: sensible probing for PCI systemsAlan Cox
Old ISA/VESA systems sometimes put tertiary IDE controllers at addresses 0x1e8, 0x168, 0x1e0 or 0x160. Linux thus probes these addresses on x86 systems. Unfortunately some PCI systems now use these addresses for other purposes which leads to users seeing minute plus hangs during boot or even crashes. The following patch (again has been in Fedora for a while) only probes the obscure legacy ISA ports on machinea that are pre-PCI. This seems to keep everyone happy and if there is someone with that utterly weird corner case the ide= command line still provides a get out of jail card. Unsurprisingly we've not found anyone so affected. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: it8212 backport for Bartlomiej IDEAlan Cox
This lets you throw out the iteraid stuff that has ended up back in due to stupid goings on in the IDE world. Its the same heavily tested code shipped in Fedora/Red Hat products but without the other dependancies on the Bartlomiej IDE layer. Pre-requisite: the ide-disk patch I sent to handle pure LBA devices. Obviously you lose things like hot unplug with the Bartlomiej IDE layer at the moment but that won't matter to most users. The patch does the following - Add IT8211/12 to pci_ids.h - Add Makefile/Kconfig entry - Add it8212 driver No core IDE code is touched by this diff Embedded system testing and the ability to force raid mode off by David Howells Made possible by the ite reference code, documentation and also several clarifications and pieces of assistance provided by ITE themselves Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: fix crashes with hotplug serverworksAlan Cox
You can't install the base kernel on a Stratus box because of the overuse of __init. Affects both IDE layers identically. It isn't the only misuser of __init so more review of other drivers (or fixing ide_register code to know about hotplug v non-hotplug chipsets) would be good. Original issue found by Stratus and their patch was the inspiration for this trivial one. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: fix the HPT366 driver layerAlan Cox
The highpoint driver is unreadable, buggy and crashes on some chipsets. The -ac one is more readable (but not ideal) and doesn't crash all over the place. Been in Fedora for some time. Backported from the Fedora one to the old Bartlomiej IDE core. No other dependencies. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: ide-generic, allow for capture of other unsupported devicesAlan Cox
The ide-generic driver gives you DMA at bios tuned speed so can actually run a lot of unsupported devices quite well. It has a pci table so that it doesn't grab disks owned by other drivers but no way to override this. The patch adds an option ide-generic-all which makes the driver grab everything going that is IDE class. The diff is messy because I put the special case as case 0 to make the if conditional and long term maintenance easier. This has been in Fedora for some time. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: IDE timing violation on resetAlan Cox
Pretty much theoretical for non MMIO thankfully. We _must_ use OUTBSYNC for commands or they may be posted and thus ruin the 400nS required delay. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: samsung SN-124 works perfectly well with DMAAlan Cox
Been in Red Hat products for ages Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ide: fix ide-disk inability to handle LBA only devices.Alan Cox
Years old bug, has to be fixed for it8212 to work Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] kprobes/ia64: refuse kprobe on ivt codeKeshavamurthy Anil S
Not safe to insert kprobes on IVT code. This patch checks to see if the address on which Kprobes is being inserted is in ivt code and if it is in ivt code then refuse to register kprobe. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Acked-by: David Mosberger <davidm@napali.hpl.hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] kprobes/ia64: refuse inserting kprobe on slot 1Rusty Lynch
Without the ability to atomically write 16 bytes, we can not update the middle slot of a bundle, slot 1, unless we stop the machine first. This patch will ensure the ability to robustly insert and remove a kprobe by refusing to insert a kprobe on slot 1 until a mechanism is in place to safely handle this case. Signed-off-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] Return probe redesign: ppc64 specific implementationRusty Lynch
The following is a patch provided by Ananth Mavinakayanahalli that implements the new PPC64 specific parts of the new function return probe design. NOTE: Since getting Ananth's patch, I changed trampoline_probe_handler() to consume each of the outstanding return probem instances (feedback on my original RFC after Ananth cut a patch), and also added the arch_init() function (adding arch specific initialization.) I have cross compiled but have not testing this on a PPC64 machine. Changes include: * Addition of kretprobe_trampoline to act as a dummy function for instrumented functions to return to, and for the return probe infrastructure to place a kprobe on on, gaining control so that the return probe handler can be called, and so that the instruction pointer can be moved back to the original return address. * Addition of arch_init(), allowing a kprobe to be registered on kretprobe_trampoline * Addition of trampoline_probe_handler() which is used as the pre_handler for the kprobe inserted on kretprobe_implementation. This is the function that handles the details for calling the return probe handler function and returning control back at the original return address * Addition of arch_prepare_kretprobe() which is setup as the pre_handler for a kprobe registered at the beginning of the target function by kernel/kprobes.c so that a return probe instance can be setup when a caller enters the target function. (A return probe instance contains all the needed information for trampoline_probe_handler to do it's job.) * Hooks added to the exit path of a task so that we can cleanup any left-over return probe instances (i.e. if a task dies while inside a targeted function then the return probe instance was reserved at the beginning of the function but the function never returns so we need to mark the instance as unused.) Signed-off-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] Return probe redesign: ia64 specific implementationRusty Lynch
The following patch implements function return probes for ia64 using the revised design. With this new design we no longer need to do some of the odd hacks previous required on the last ia64 return probe port that I sent out for comments. Note that this new implementation still does not resolve the problem noted by Keith Owens where backtrace data is lost after a return probe is hit. Changes include: * Addition of kretprobe_trampoline to act as a dummy function for instrumented functions to return to, and for the return probe infrastructure to place a kprobe on on, gaining control so that the return probe handler can be called, and so that the instruction pointer can be moved back to the original return address. * Addition of arch_init(), allowing a kprobe to be registered on kretprobe_trampoline * Addition of trampoline_probe_handler() which is used as the pre_handler for the kprobe inserted on kretprobe_implementation. This is the function that handles the details for calling the return probe handler function and returning control back at the original return address * Addition of arch_prepare_kretprobe() which is setup as the pre_handler for a kprobe registered at the beginning of the target function by kernel/kprobes.c so that a return probe instance can be setup when a caller enters the target function. (A return probe instance contains all the needed information for trampoline_probe_handler to do it's job.) * Hooks added to the exit path of a task so that we can cleanup any left-over return probe instances (i.e. if a task dies while inside a targeted function then the return probe instance was reserved at the beginning of the function but the function never returns so we need to mark the instance as unused.) Signed-off-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] Return probe redesign: x86_64 specific changesRusty Lynch
The following patch contains the x86_64 specific changes for the new return probe design. Changes include: * Removing the architecture specific functions for querying a return probe instance off a stack address * Complete rework onf arch_prepare_kretprobe() and trampoline_probe_handler() * Removing trampoline_post_handler() * Adding arch_init() so that now we handle registering the return probe trampoline instead of kernel/kprobes.c doing it NOTE: Note that with this new design, the dependency on calculating a pointer to the task off the stack pointer no longer exist (resolving the problem of interruption stacks as pointed out in the original feedback to this port.) Signed-off-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] Return probe redesign: i386 specific changesRusty Lynch
The following patch contains the i386 specific changes for the new return probe design. Changes include: * Removing the architecture specific functions for querying a return probe instance off a stack address * Complete rework onf arch_prepare_kretprobe() and trampoline_probe_handler() * Removing trampoline_post_handler() * Adding arch_init() so that now we handle registering the return probe trampoline instead of kernel/kprobes.c doing it Signed-off-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] Return probe redesign: architecture independent changesRusty Lynch
The following is the second version of the function return probe patches I sent out earlier this week. Changes since my last submission include: * Fix in ppc64 code removing an unneeded call to re-enable preemption * Fix a build problem in ia64 when kprobes was turned off * Added another BUG_ON check to each of the architecture trampoline handlers My initial patch description ==> From my experiences with adding return probes to x86_64 and ia64, and the feedback on LKML to those patches, I think we can simplify the design for return probes. The following patch tweaks the original design such that: * Instead of storing the stack address in the return probe instance, the task pointer is stored. This gives us all we need in order to: - find the correct return probe instance when we enter the trampoline (even if we are recursing) - find all left-over return probe instances when the task is going away This has the side effect of simplifying the implementation since more work can be done in kernel/kprobes.c since architecture specific knowledge of the stack layout is no longer required. Specifically, we no longer have: - arch_get_kprobe_task() - arch_kprobe_flush_task() - get_rp_inst_tsk() - get_rp_inst() - trampoline_post_handler() <see next bullet> * Instead of splitting the return probe handling and cleanup logic across the pre and post trampoline handlers, all the work is pushed into the pre function (trampoline_probe_handler), and then we skip single stepping the original function. In this case the original instruction to be single stepped was just a NOP, and we can do without the extra interruption. The new flow of events to having a return probe handler execute when a target function exits is: * At system initialization time, a kprobe is inserted at the beginning of kretprobe_trampoline. kernel/kprobes.c use to handle this on it's own, but ia64 needed to do this a little differently (i.e. a function pointer is really a pointer to a structure containing the instruction pointer and a global pointer), so I added the notion of arch_init(), so that kernel/kprobes.c:init_kprobes() now allows architecture specific initialization by calling arch_init() before exiting. Each architecture now registers a kprobe on it's own trampoline function. * register_kretprobe() will insert a kprobe at the beginning of the targeted function with the kprobe pre_handler set to arch_prepare_kretprobe (still no change) * When the target function is entered, the kprobe is fired, calling arch_prepare_kretprobe (still no change) * In arch_prepare_kretprobe() we try to get a free instance and if one is available then we fill out the instance with a pointer to the return probe, the original return address, and a pointer to the task structure (instead of the stack address.) Just like before we change the return address to the trampoline function and mark the instance as used. If multiple return probes are registered for a given target function, then arch_prepare_kretprobe() will get called multiple times for the same task (since our kprobe implementation is able to handle multiple kprobes at the same address.) Past the first call to arch_prepare_kretprobe, we end up with the original address stored in the return probe instance pointing to our trampoline function. (This is a significant difference from the original arch_prepare_kretprobe design.) * Target function executes like normal and then returns to kretprobe_trampoline. * kprobe inserted on the first instruction of kretprobe_trampoline is fired and calls trampoline_probe_handler() (no change here) * trampoline_probe_handler() consumes each of the instances associated with the current task by calling the registered handler function and marking the instance as unused until an instance is found that has a return address different then the trampoline function. (change similar to my previous ia64 RFC) * If the task is killed with some left-over return probe instances (meaning that a target function was entered, but never returned), then we just free any instances associated with the task. (Not much different other then we can handle this without calling architecture specific functions.) There is a known problem that this patch does not yet solve where registering a return probe flush_old_exec or flush_thread will put us in a bad state. Most likely the best way to handle this is to not allow registering return probes on these two functions. (Significant change) This patch series applies to the 2.6.12-rc6-mm1 kernel, and provides: * kernel/kprobes.c changes * i386 patch of existing return probes implementation * x86_64 patch of existing return probe implementation * ia64 implementation * ppc64 implementation (provided by Ananth) This patch implements the architecture independant changes for a reworking of the kprobes based function return probes design. Changes include: * Removing functions for querying a return probe instance off a stack address * Removing the stack_addr field from the kretprobe_instance definition, and adding a task pointer * Adding architecture specific initialization via arch_init() * Removing extern definitions for the architecture trampoline functions (this isn't needed anymore since the architecture handles the initialization of the kprobe in the return probe trampoline function.) Signed-off-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] kprobes: fix single-step out of line - take2Ananth N Mavinakayanahalli
Now that PPC64 has no-execute support, here is a second try to fix the single step out of line during kprobe execution. Kprobes on x86_64 already solved this problem by allocating an executable page and using it as the scratch area for stepping out of line. Reuse that. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
2005-06-27[PATCH] cciss: remove partition info from CCISS_GETLUNINFOMike Miller
This patch fulfills a promise I made to Christoph sometime back. I am removing the partition info from the CCISS_GETLUNINFO ioctl as I was informed my "driver had no damn business reading that structure." ;) The application folks are to use /proc or /sys for partition info from now on. I am only aware of a few apps that use this ioctl and I'm not sure they ever used the partition info. Signed-off-by: Mike Miller <mike.miller@hp.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] cciss: pci domain info pass 2Mike Miller
This is pass 2 of my patch to add pci domain info to an existing ioctl. This time I insert the domain between dev_fn and board_id as Willy suggested and change the var to unsigned short to ease Christoph's concerns. Although I thought unsigned int was the correct var type for this. I also thought it didn't matter where I inserted it in the structure. Signed-off-by: Mike Miller <mike.miller@hp.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] cciss: pci id fixMike Miller
This patch fixes a PCI ID I got wrong before. It also adds support for another new SAS controller due out this summer. I didn't have a marketing name prior to my last submission. Also modifies the copyright date range. Signed-off-by: Mike Miller <mike.miller@hp.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] MAINTAINERS: Update Roland Dreier's emailRoland Dreier
Cisco bought Topspin, so I'm now a shiny happy Cisco employee. Update my entry in MAINTAINERS. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB: Fix pack/unpack when size_bits == 64Roland Dreier
Fix handling of fields with size_bits == 64. Pointed out by Hal Rosenstock. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB: Fix race in sa_queryRoland Dreier
Use a copy of the id we'll return to the consumer so that we don't dereference query->sa_query after calling send_mad(). A completion may occur very quickly and end up freeing the query before we get to do anything after send_mad(). Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Bump versionRoland Dreier
It's about time for a version bump. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Align FW command mailboxes to 4KRoland Dreier
Future versions of Mellanox HCA firmware will require command mailboxes to be aligned to 4K. Support this by using a pci_pool to allocate all mailboxes. This has the added benefit of shrinking the source and text of mthca. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Encapsulate command interface initRoland Dreier
Encapsulate mthca command interface initialization/cleanup. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Fix memory leak on error pathRoland Dreier
Free page_list buffer on error path of mthca_reg_phys_mr(). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Split off MTT allocationRoland Dreier
Split allocation of MTT range from creation of MR. This will be useful for implementing shared memory regions and userspace verbs. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Move mthca_is_memfree checksRoland Dreier
Make mthca_table_put() and mthca_table_put_range() NOPs if the device is not mem-free, so that we don't have to have "if (mthca_is_memfree())" tests in the callers of these functions. This makes our code more readable and maintainable, and saves a couple dozen bytes of text in ib_mthca.ko as well. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Fix memset sizeRoland Dreier
Fix memset to use sizeof *props instead of just sizeof props. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Enable unreliable connected transportRoland Dreier
Add support for unreliable connected (UC) transport to mthca driver: - Add attributes for UC to modify QP table. - Add support for posting UC work requests. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Set RDMA/atomic capabilities correctlyRoland Dreier
mthca apparently had the meanings of the max_rd_atomic and max_dest_rd_atomic QP attributes backwards. max_rd_atomic limits the maximum number of outstanding RDMA/atomic requests as an initiator (on a send queue), and max_dest_rd_atomic specifies the resources allocated to handle RMDA/atomic requests from the remote end of the connection. We were programming our QP context with these values swapped. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Set QP static rate correctlyRoland Dreier
Fix offset of static_rate in QP context. Pointed out by Dror Goldenberg. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Use dma_alloc_coherent instead of pci_alloc_consistentRoland Dreier
Switch all allocations of coherent memory from pci_alloc_consistent() to dma_alloc_coherent(), so that we can pass GFP_KERNEL. This should help when the system is low on memory. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Clean up CQ debugRoland Dreier
Clean up CQ debugging code: make dump_cqe print on one line, and only dump error CQ entries for local operation errors. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Clean up error messagesBernhard Fischer
- Fix incorrect cut-n-paste in error messages. - Add missing newlines in error messages. - Use DRV_NAME instead of "ib_mthca" in a couple of places. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] IB/mthca: Add Sun copyright noticeTom Duffy
Add Sun copyright to files modified by Tom Duffy. Signed-off-by: Tom Duffy <tduffy@sun.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] seccomp: tsc disableAndrea Arcangeli
I believe at least for seccomp it's worth to turn off the tsc, not just for HT but for the L2 cache too. So it's up to you, either you turn it off completely (which isn't very nice IMHO) or I recommend to apply this below patch. This has been tested successfully on x86-64 against current cogito repository (i686 compiles so I didn't bother testing ;). People selling the cpu through cpushare may appreciate this bit for a peace of mind. There's no way to get any timing info anymore with this applied (gettimeofday is forbidden of course). The seccomp environment is completely deterministic so it can't be allowed to get timing info, it has to be deterministic so in the future I can enable a computing mode that does a parallel computing for each task with server side transparent checkpointing and verification that the output is the same from all the 2/3 seller computers for each task, without the buyer even noticing (for now the verification is left to the buyer client side and there's no checkpointing, since that would require more kernel changes to track the dirty bits but it'll be easy to extend once the basic mode is finished). Eliminating a cold-cache read of the cr4 global variable will save one cacheline during the tlb flush while making the code per-cpu-safe at the same time. Thanks to Mikael Pettersson for noticing the tlb flush wasn't per-cpu-safe. The global tlb flush can run from irq (IPI calling do_flush_tlb_all) but it'll be transparent to the switch_to code since the IPI won't make any change to the cr4 contents from the point of view of the interrupted code and since it's now all per-cpu stuff, it will not race. So no need to disable irqs in switch_to slow path. Signed-off-by: Andrea Arcangeli <andrea@cpushare.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ppc64: Add missing exportsBenjamin Herrenschmidt
This patch adds a couple of missing symbol exports. flush_dcache_page is used by the AGP driver and rtc_lock by the RTC driver. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ppc32: Remove CONFIG_PMAC_PBOOKBenjamin Herrenschmidt
This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some powerbooks have, CONFIG_PM for power management related code, and just left out of any CONFIG_* option for some generally useful stuff that can be used on non-laptops as well. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ppc32: remove obsolete macserial driverBenjamin Herrenschmidt
The macserial driver has been obsoleted by the new pmac_zilog driver for a while now and probably doesn't even work anymore on recent kernels. This patch removes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] ppc32: Bump PMU interrupt priorityBenjamin Herrenschmidt
The Power Management Unit on PowerMacs is very sensitive to timeouts during async message exchanges. It uses rather crude protocol based on a shift register with an interrupt and is almost continuously exchanging messages with the host CPU on laptops. This patch adds a routine to the open_pic driver to be able to select a PMU driver so that it bumps it's interrupt priority to above the normal level. This will allow PMU interrupts to occur while another interrupt is pending, and thus reduce the risk of machine beeing abruptly shutdown by the PMU due to a timeout in PMU communication caused by excessive interrupt latency. The problem is very rare, and usually just doesn't happen, but it is still useful to make things even more robust. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27[PATCH] 8xx: avoid "dcbst" misbehaviour with unpopulated TLBMarcelo Tosatti
The proposed _tlbie call at update_mmu_cache() is safe because: Addresses for which update_mmu_cache() gets invocated are never inside the static kernel virtual mapping, meaning that there is no risk for the _tlbie() here to be thrashing the pinned entry, as Dan suspected. The intermediate TLB state in which this bug can be triggered is not visible by userspace or any other contexts, except the page fault handling path. So there is no need to worry about userspace dcbxxx users. The other solution to this is to avoid dcbst misbehaviour in the first place, which involves changing in-kernel "dcbst" callers to use 8xx specific SPR's. Summary: On 8xx, cache control instructions (particularly "dcbst" from flush_dcache_icache) fault as write operation if there is an unpopulated TLB entry for the address in question. To workaround that, we invalidate the TLB here, thus avoiding dcbst misbehaviour. Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>