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* [PATCH] x86_64: Calibrate APIC timer using PM timerAndi Kleen2006-02-044-6/+53
| | | | | | | | | | | | | | | | | | | | | On some broken motherboards (at least one NForce3 based AMD64 laptop) the PIT timer runs at a incorrect frequency. This patch adds a new option "apicpmtimer" that allows to use the APIC timer and calibrate it using the PMTimer. It requires the earlier patch that allows to run the main timer from the APIC. Specifying apicpmtimer implies apicmaintimer. The option defaults to off for now. I tested it on a few systems and the resulting APIC timer frequencies were usually a bit off, but always <1%, which should be tolerable. TBD figure out heuristic to enable this automatically on the affected systems TBD perhaps do it on all NForce3s or using DMI? Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Don't allow kprobes on __switch_toAndi Kleen2006-02-041-1/+3
| | | | | | | | | | | | kprobes cannot deal with the funny calling conventions when it runs on a different stack when it returns. If someone wants to instrument context switch they can add a probe to schedule() instead. Cc: jkenisto@us.ibm.com, prasanna@in.ibm.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: align per-cpu section to configured cache bytesZach Brown2006-02-041-1/+1
| | | | | | | | | | | | Align the start of the per-cpu section to the configured number of bytes in a cache line. This stops a BUG_ON() from triggering in load_module() when DEFINE_PER_CPU() is used in a module and the section isn't cacheline-aligned. Rusty also found this and sent a patch in a while ago (http://lkml.org/lkml/2004/10/19/17), I don't know what came of that. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: When allocation of merged SG lists fails in the IOMMU don't ↵Kevin VanMaren2006-02-041-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | merge [ AK: I redid Kevin's fix to be simpler, but the idea and original analysis of the problem is from Kevin] This avoid allocation failures on some SATA systems like Nvidia CK8 when the IOMMU gets fragmented. Modern SATA devices have quite large queues (128 entries) and the FS with ext2/3 is good enough now that it often passes whole 128 page sg lists down to the driver. These require 512K of continuous free space in the IOMMU aperture to map when merged. When the IOMMU is fragmented this could lead to spurious IO errors due to failing mappings. Short term fix is to just try to map the SG list again unmerged page by page - this way fragmentation doesn't matter anymore. The code for that was already there, but it just wasn't enabled for the merge case. According to Kevin at least the Nvidia device doesn't seem to benefit from merging much anyways, so the only slowdown is from trying to do an unnecessary merge attempt. Kevin plans to implement better fragmentation avoidance in the future, but that wouldn't be 2.6.16 material. TBD: should add some statistic counters to count how often that really happens. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Fix zero mcfg entry workaround on x86-64Andi Kleen2006-02-041-1/+1
| | | | | | | | | | | I broke this earlier when moving the patch from i386 to x86-64. Need to return the virtual address here, not the physical address. This fixes some boot time crashes on x86-64. Cc: gregkh@suse.de Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Do more checking in the SRAT header codeAndi Kleen2006-02-041-4/+15
| | | | | | | | | | | - Check if the processor/memory affinity entries are long enough according to the ACPI 3.0 spec. - Ignore memory affinity entries that define a zero length region. All based on BIOS issues found in the field @) Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: data/functions wrongly marked as __init with cpu hotplug.Ashok Raj2006-02-042-2/+4
| | | | | | | | | | | attached patch is 2 more cases i found via running the reference_init.pl script. These were easy to spot just knowing the file names. There is one another about init/main.c that i cant exactly zero in. (partly because i dont know how to interpret the data thats spewed out of the tool). Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: mark two routines as __cpuinitShaohua Li2006-02-042-2/+2
| | | | | | SIgned-off-by: Shaohua Li<shaohua.li@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Clear more state when ignoring empty node in SRAT parsingAndi Kleen2006-02-041-6/+20
| | | | | | | Might fix boot failures on systems with empty PXMs in SRAT Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Fix memory policy build without CONFIG_HUGETLBFSChen, Kenneth W2006-02-041-0/+2
| | | | | | | | | | | | | | > mm/mempolicy.c: In function `huge_zonelist': > mm/mempolicy.c:1045: error: `HPAGE_SHIFT' undeclared (first use in this function) > mm/mempolicy.c:1045: error: (Each undeclared identifier is reported only once > mm/mempolicy.c:1045: error: for each function it appears in.) > make[1]: *** [mm/mempolicy.o] Error 1 Need to wrap huge_zonelist function with CONFIG_HUGETLBFS. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Remove rogue default y in EDAC KconfigAndi Kleen2006-02-041-1/+0
| | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Remove CONFIG_INIT_DEBUGAndi Kleen2006-02-041-7/+0
| | | | | | | | It has been enabled by default for some time now and is cheap enough so it doesn't matter anyways. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Fix the node cpumask of a cpu going downRavikiran G Thirumalai2006-02-042-0/+10
| | | | | | | | | | | | | | | | | | | Currently, x86_64 and ia64 arches do not clear the corresponding bits in the node's cpumask when a cpu goes down or cpu bring up is cancelled. This is buggy since there are pieces of common code where the cpumask is checked in the cpu down code path to decide on things (like in the slab down path). PPC does the right thing, but x86_64 and ia64 don't (This was the reason Sonny hit upon a slab bug during cpu offline on ppc and could not reproduce on other arches). This patch fixes it for x86_64. I won't attempt ia64 as I cannot test it. Credit for spotting this should go to Alok. Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Undo the earlier changes to remove unrolled copy/memset ↵Andi Kleen2006-02-047-24/+543
| | | | | | | | | | | | | | | | functions They cause quite bad performance regressions on Netburst This is temporary until we can get new optimized functions for these CPUs. This undoes changes that were done in 2.6.15 and in 2.6.16-rc1, essentially bringing the code back to 2.6.14 level. Only change is I renamed the X86_FEATURE_K8_C flag to X86_FEATURE_REP_GOOD and fixed the check for the flag and also fixed some comments. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Fix swiotlb dma_alloc_coherent fallbackAndi Kleen2006-02-041-0/+3
| | | | | | | | This avoids BUG_ONs in the low level allocator when an illegal GFP mask is added. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: [PATCH] timer resumeShaohua Li2006-02-043-0/+18
| | | | | | | | | | At resume time, TSC's value or something similar might be changed a lot against suspend time. This could make system gets a very big lost ticks. See http://bugzilla.kernel.org/show_bug.cgi?id=5825 Signed-off-by: Shaohua Li<shaohua.li@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Automatically enable apicmaintimer on ATI boardsAndi Kleen2006-02-041-0/+8
| | | | | | | | | They all have problems with IRQ 0 routing, so just use the APIC on them. Can be overwritten with "noapicmaintimer" Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Allow to run main time keeping from the local APIC interruptAndi Kleen2006-02-045-9/+83
| | | | | | | | | | | | | | | | | | | | | | Another piece from the no-idle-tick patch. This can be enabled with the "apicmaintimer" option. This is mainly useful when the PIT/HPET interrupt is unreliable. Note there are some systems that are known to stop the APIC timer in C3. For those it will never work, but this case should be automatically detected. It also only works with PM timer right now. When HPET is used the way the main timer handler computes the delay doesn't work. It should be a bit more efficient because there is one less regular interrupt to process on the boot processor. Requires earlier bugfix from Venkatesh Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Only switch to IPI broadcast timer on Intel when C3 is supportedVenkatesh Pallipadi2006-02-041-1/+1
| | | | | | | | | Bug in apic timer removal on C3 patch. We should switch to IPI from APIC timer only when C3 state is valid. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Define pmtmr_ioport to 0 when PM_TIMER is not availableAndi Kleen2006-02-041-0/+4
| | | | | | | Avoids some ifdef mess later. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Disallow kprobes on NMI handlersAndi Kleen2006-02-043-13/+18
| | | | | | | | A kprobe executes IRET early and that could cause NMI recursion and stack corruption. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Update defconfigAndi Kleen2006-02-041-7/+14
| | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SELinux: fix size-128 slab leakStephen Smalley2006-02-031-4/+0
| | | | | | | | | Remove private inode tests from security_inode_alloc and security_inode_free, as we otherwise end up leaking inode security structures for private inodes. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds2006-02-0340-328/+904
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| * [PARISC] New syscalls (inotify, *at, pselect6/ppoll, migrate_pages)Kyle McMartin2006-01-302-1/+39
| | | | | | | | | | | | | | | | | | | | Wire up some new syscalls that have been merged upstream, o inotify o openat et al o pselect6/ppoll o migrate_pages Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Simplify DISCONTIGMEM in KconfigKyle McMartin2006-01-291-7/+13
| | | | | | | | | | | | | | | | | | | | parisc was previously displaying both the mm/Kconfig memory model menu, and its own prompt. Remove prompt and have CONFIG_64BIT toggle between DISCONTIGMEM and FLATMEM. Also remove the EXPERIMENTAL from discontigmem support... It's been running fine for months (years?) now. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Arch-specific compat signalsKyle McMartin2006-01-226-14/+232
| | | | | | | | | | | | | | | | | | | | Add enough arch-specific compat signals code to enable parisc64 to compile and boot out of the mainline tree. There are likely still many dragons here, but this is a start to squashing the last big difference between the mainline tree and the parisc-linux tree. The remaining bugs can be squashed as they come up. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Clean up printk in superio.cKyle McMartin2006-01-221-19/+22
| | | | | | | | | | | | | | | | Clean up some of the messages printed by the superio driver by defining a prefix instead of duplicating it in every message. Also some small coding style cleanups. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Use DEBUG_KERNEL to catch used-after-free __init dataHelge Deller2006-01-221-8/+1
| | | | | | | | | | | | | | | | | | | | Use CONFIG_DEBUG_KERNEL to catch kernel code which tries to access __init data after it is freed. When CONFIG_DEBUG_KERNEL is not set this also cleans up a WARN_ON at boot time. Also remove some dead code from mm/init.c Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Add CONFIG_DEBUG_RODATA to protect read-only dataHelge Deller2006-01-226-4/+34
| | | | | | | | | | | | | | | | | | | | Add the parisc version of the "mark rodata section read only" patches. Based on code from and Signed-off-by Arjan van de Ven <arjan@infradead.org>, Ingo Molnar <mingo@elte.hu>, Andi Kleen <ak@muc.de>, Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Remove {,un}lock_kernel from perf ioctlMatthew Wilcox2006-01-221-3/+0
| | | | | | | | | | | | | | | | Remove the lock_kernel/unlock_kernel pair in the ioctl method. It plainly wasn't protecting anything. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Add chassis_power_off routineKyle McMartin2006-01-222-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | Define a chassis_power_off routine that machines which have a way to turn off the power supply can hook into. Formerly they were using pm_power_off, which is now being used by generic code. Make lasi.c use chassis_power_off instead of pm_power_off. Note, all machines need to call machine_power_off so that the switch can power off the machine, though halt -p may not necessarily be able to work properly on the machine. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Remove obsolete _hlt cruftKyle McMartin2006-01-221-16/+0
| | | | | | | | | | | | | | | | | | Remove a bunch of obsolete code from process.c, these routines were likely imported from the i386 version of process.c when the port started. The routines are only used in floppy.c, which I seriously doubt will ever work on parisc, due to architectural assumptions. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Move pm_power_off export to process.cKyle McMartin2006-01-222-3/+1
| | | | | | | | | | | | | | Move the EXPORT_SYMBOL() of pm_power_off from parisc_ksyms.c to the location of its definition in process.c Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] atomic64 supportKyle McMartin2006-01-221-15/+69
| | | | | | | | | | | | | | | | Implement atomic64_t so atomic_long_t works on parisc. Also clean up some of the coding style in atomic.h, and make sure ATOMIC_INIT is cast properly. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Clean up compiler warning in pci.cHelge Deller2006-01-221-0/+2
| | | | | | | | | | | | | | | | | | Avoid compiler warning for unused variables on 32bit kernels by conditionalizing the local variables on CONFIG_64BIT. PCI_HOST_ADDR() only uses the hba argument on 64bit compiles. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Use F_EXTEND() for COMMAND_GLOBALKyle McMartin2006-01-221-6/+1
| | | | | | | | | | | | | | | | Instead of wrapping the define of COMMAND_GLOBAL in #ifdef __LP64__ use the F_EXTEND() macro defined in asm/io.h, which is the preferred way of extending mmio space addresses for either 32 or 64 bit machines. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Fix floating point invalid exception trap handlerJames Bottomley2006-01-221-0/+1
| | | | | | | | | | | | | | | | Fix our trap handler to issue the correct floating point exception for both types of invalid trap. Signed-off-by: James Bottomley <jejb@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Drop unused do_check_pgt_cache()Helge Deller2006-01-222-6/+0
| | | | | | | | | | | | | | | | Drop the unused do_check_pgt_cache routine from mm/init.c and its prototype in asm/pgalloc.h Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] pdc_stable version 0.22Thibaut VARENE2006-01-221-94/+262
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pdc_stable v0.22, changes since v0.10: o renamed root subsystem from 'pdc' to 'stable' o split 'info' into several files, one per PDC field o implemented 'autoboot' and 'autosearch' write calls to toggle these flags o grant read permission to all users on "safe" files o more code cleanup (removed duplicate code) o avoid bad stable storage clobbering by write locking critical sections o print consistent data as well o SMP cleanups Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Remove unnecessary extern declarations from asm/pci.hGrant Grundler2006-01-222-3/+1
| | | | | | | | | | | | | | | | | | Remove two unnecessary extern declarations from asm/pci.h. They collide with what gcc4.0 assumed was static (and should be static). Found by Joel Soete. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Use kzalloc and other janitor-style cleanupsHelge Deller2006-01-2217-82/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Helge, o Convert a bunch of kmalloc/memset uses to kzalloc. o pci.c: Add some __read_mostly annotations. o pci.c: Move constant pci_post_reset_delay to asm/pci.h o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG. o Add some consts to perf.c/perf_images.h Matthew, o sticore.c: Add some consts to suppress compile warnings. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Update b180_defconfigMatthew Wilcox2006-01-221-36/+146
| | | | | | | | | | | | | | | | | | | | Update b180_defconfig to be more usable on other similar machines. Enabling Lasi 82596, Harmony, Mux console, CCIO, HPPB, etc., means this config is suitable for not only BXXX machines, but also CXXX and JXXX class machines. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * [PARISC] Make flush_tlb_all_local take a void *Matthew Wilcox2006-01-211-4/+2
| | | | | | | | | | | | | | | | | | | | | | Make flush_tlb_all_local take a void * so it doesn't have to be cast when using on_each_cpu(). This becomes a problem when on_each_cpu is a macro. Also remove the prototype of flush_tlb_all_local from .c files. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds2006-02-034-2/+29
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| * | [SERIAL] 8250: limit range of runtime portsRussell King2006-02-031-0/+1
| | | | | | | | | | | | | | | | | | Prevent SERIAL_8250_RUNTIME_UARTS being larger than SERIAL_8250_NR_UARTS. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [SERIAL] initialize spinlock for port failed to setup consoleAtsushi Nemoto2006-02-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems serial_core intend to initialize port->lock just once for each ports. This is done in uart_set_options() for console, and in uart_add_one_port() for other ports. But there is a case the port->lock is not initialized by serial_core. If the setup function for the console was failed, it will not call uart_set_options() but the port is marked as console (uart_console(port) returns 1). It can happen if console was PCI port which can not detected at the time of register_console. This patch is to initialize port->lock for such console port. With this change, most of spin_lock_init() (some of them are labeled "Temporary fix.") in low-level serial drivers can be omitted. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [SERIAL] SIIG 8-port serial boards supportAndrey Panin2006-02-022-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for SIIG 8-port boards. These boards have 4 ports in separate bars and another 4 ports in the single bar. Because of this strange port arrangement these cards need special setup function. Fortunately no other SIIG cards have more than 4 port, so this setup function could be used for them too. Signed-off-by: Andrey Panin <pazke@donpac.ru> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge master.kernel.org:/home/rmk/linux-2.6-mmcLinus Torvalds2006-02-038-76/+84
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| * | | [MMC] Add MMC command type flagsRussell King2006-02-028-76/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Some hosts need to know the command type, so pass it via a set of flags in cmd->flags. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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