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* x86_64: fake apicid_to_node mapping for fake numaDavid Rientjes2007-07-21
| | | | | | | | | | | | | | | | | When we are in the emulated NUMA case, we need to make sure that all existing apicid_to_node mappings that point to real node ID's now point to the equivalent fake node ID's. If we simply iterate over all apicid_to_node[] members for each node, we risk remapping an entry if it shares a node ID with a real node. Since apicid's may not be consecutive, we're forced to create an automatic array of apicid_to_node mappings and then copy it over once we have finished remapping fake to real nodes. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: fake pxm-to-node mapping for fake numaDavid Rientjes2007-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | For NUMA emulation, our SLIT should represent the true NUMA topology of the system but our proximity domain to node ID mapping needs to reflect the emulated state. When NUMA emulation has successfully setup fake nodes on the system, a new function, acpi_fake_nodes() is called. This function determines the proximity domain (_PXM) for each true node found on the system. It then finds which emulated nodes have been allocated on this true node as determined by its starting address. The node ID to PXM mapping is changed so that each fake node ID points to the PXM of the true node that it is located on. If the machine failed to register a SLIT, then we assume there is no special requirement for emulated node affinity so we use the default LOCAL_DISTANCE, which is newly exported to this code, as our measurement if the emulated nodes appear in the same PXM. Otherwise, we use REMOTE_DISTANCE. PXM_INVAL and NID_INVAL are also exported to the ACPI header file so that we can compare node_to_pxm() results in generic code (in this case, the SRAT code). Cc: Len Brown <lenb@kernel.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: extract helper function from e820_register_active_regionsDavid Rientjes2007-07-21
| | | | | | | | | | | | | | | | | | The logic in e820_find_active_regions() for determining the true active regions for an e820 entry given a range of PFN's is needed for e820_hole_size() as well. e820_hole_size() is called from the NUMA emulation code to determine the reserved area within an address range on a per-node basis. Its logic should duplicate that of finding active regions in an e820 entry because these are the only true ranges we may register anyway. [akpm@linux-foundation.org: cleanup] Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Quicklist support for x86_64Christoph Lameter2007-07-21
| | | | | | | | | | | | | | | | | | | | | | This adds caching of pgds and puds, pmds, pte. That way we can avoid costly zeroing and initialization of special mappings in the pgd. A second quicklist is useful to separate out PGD handling. We can carry the initialized pgds over to the next process needing them. Also clean up the pgd_list handling to use regular list macros. There is no need anymore to avoid the lru field. Move the add/removal of the pgds to the pgdlist into the constructor / destructor. That way the implementation is congruent with i386. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: "Luck, Tony" <tony.luck@intel.com> Acked-by: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: timer_irq_works() static againAdrian Bunk2007-07-21
| | | | | | | | | timer_irq_works() needlessly became global. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: arch/i386/kernel/i8253.c should #include <asm/timer.h>Adrian Bunk2007-07-21
| | | | | | | | | | Every file should include the headers containing the prototypes for its global functions. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: remapped_pgdat_init() staticAdrian Bunk2007-07-21
| | | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: minor nx handling adjustmentJan Beulich2007-07-21
| | | | | | | | Constrain __supported_pte_mask and NX handling to just the PAE kernel. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: smp-alt-once option is only useful with HOTPLUG_CPUJan Beulich2007-07-21
| | | | | | | | Hence remove its handling in the opposite case. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: remove unused variable maxcpusJan Beulich2007-07-21
| | | | | | | | | .. and adjust documentation to properly reflect options that are x86-64 specific. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: minor exception trace variables cleanupJan Beulich2007-07-21
| | | | | | Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: allow debuggers to access the vsyscall page with compat vDSOJan Beulich2007-07-21
| | | | | | Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: ia32entry adjustmentsJan Beulich2007-07-21
| | | | | | | | | Consolidate the three 32-bit system call entry points so that they all treat registers in similar ways. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: time.c white space wreckage cleanupThomas Gleixner2007-07-21
| | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: apic.c coding style janitor workThomas Gleixner2007-07-21
| | | | | | | | | | Fix coding style, white space wreckage and remove unused code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86: share hpet.h with i386Thomas Gleixner2007-07-21
| | | | | | | | | | | | | hpet.h in asm-i386 and asm-x86_64 contain tons of duplicated stuff. Consolidate into one shared header file. AK: Fix i386 compilation with !X86_IO_APIC Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: fiuxp pt_reqs leftoversThomas Gleixner2007-07-21
| | | | | | | | | | The hpet_rtc_interrupt handler still uses pt_regs. Fix it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Fix APIC typoThomas Gleixner2007-07-21
| | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Remove dead code and other janitor work in tsc.cThomas Gleixner2007-07-21
| | | | | | | | | | | | Remove unused code and variables and do some codingstyle / whitespace cleanups while at it. Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Use generic xtime initThomas Gleixner2007-07-21
| | | | | | | | | | | xtime can be initialized including the cmos update from the generic timekeeping code. Remove the arch specific implementation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: use generic cmos updateThomas Gleixner2007-07-21
| | | | | | | | | | | Use the generic cmos update function in kernel/time/ntp.c Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: hpet tsc calibration fix broken smi detection logicThomas Gleixner2007-07-21
| | | | | | | | | | | | | | | | | | The current SMI detection logic in read_hpet_tsc() makes sure, that when a SMI happens between the read of the HPET counter and the read of the TSC, this wrong value is used for TSC calibration. This is not the intention of the function. The comparison must ensure, that we do _NOT_ use such a value. Fix the check to use calibration values where delta of the two TSC reads is smaller than a reasonable threshold. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: Reserve the right performance counter for the Intel PerfMon NMI watchdogBjörn Steinbrink2007-07-21
| | | | | | | | | The Intel PerfMon NMI watchdog reserves the first performance counter, but uses the second one. Make it correctly reserve the second one. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Don't use softirq safe locks in smp_call_functionAndi Kleen2007-07-21
| | | | | | | | | | It is not fully softirq safe anyways. Can't do a WARN_ON unfortunately because it could trigger in the panic case. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: Add L3 cache support to AMD CPUID4 emulationAndi Kleen2007-07-21
| | | | | | | | | With that an L3 cache is correctly reported in the cache information in /sys With fixes from Andreas Herrmann and Dean Gaudet and Joachim Deguara Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpuAndi Kleen2007-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements new vDSO for x86-64. The concept is similar to the existing vDSOs on i386 and PPC. x86-64 has had static vsyscalls before, but these are not flexible enough anymore. A vDSO is a ELF shared library supplied by the kernel that is mapped into user address space. The vDSO mapping is randomized for each process for security reasons. Doing this was needed for clock_gettime, because clock_gettime always needs a syscall fallback and having one at a fixed address would have made buffer overflow exploits too easy to write. The vdso can be disabled with vdso=0 It currently includes a new gettimeofday implemention and optimized clock_gettime(). The gettimeofday implementation is slightly faster than the one in the old vsyscall. clock_gettime is significantly faster than the syscall for CLOCK_MONOTONIC and CLOCK_REALTIME. The new calls are generally faster than the old vsyscall. Advantages over the old x86-64 vsyscalls: - Extensible - Randomized - Cleaner - Easier to virtualize (the old static address range previously causes overhead e.g. for Xen because it has to create special page tables for it) Weak points: - glibc support still to be written The VM interface is partly based on Ingo Molnar's i386 version. Includes compile fix from Joachim Deguara Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: Move all simple string operations out of lineAndi Kleen2007-07-21
| | | | | | | | | | | | | | | | | The compiler generally generates reasonable inline code for the simple cases and for the rest it's better for code size for them to be out of line. Also there they can be potentially optimized more in the future. In fact they probably should be in a .S file because they're all pure assembly, but that's for another day. Also some code style cleanup on them while I was on it (this seems to be the last untouched really early Linux code) This saves ~12k text for a defconfig kernel with gcc 4.1. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Use string instruction memcpy/memset on AMD Fam10Andi Kleen2007-07-21
| | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: various cleanups in NUMA scan nodeDavid Rientjes2007-07-21
| | | | | | | | | | | | | | | | | | | | | In acpi_scan_nodes(), we immediately return -1 if acpi_numa <= 0, meaning we haven't detected any underlying ACPI topology or we have explicitly disabled its use from the command-line with numa=noacpi. acpi_table_print_srat_entry() and acpi_table_parse_srat() are only referenced within drivers/acpi/numa.c, so we can mark them as static and remove their prototypes from the header file. Likewise, pxm_to_node_map[] and node_to_pxm_map[] are only used within drivers/acpi/numa.c, so we mark them as static and remove their externs from the header file. The automatic 'result' variable is unused in acpi_numa_init(), so it's removed. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Use LOCAL_DISTANCE and REMOTE_DISTANCE in x86_64 ACPI codeDavid Rientjes2007-07-21
| | | | | | | | Use LOCAL_DISTANCE and REMOTE_DISTANCE in x86_64 ACPI code Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Don't rely on a unique IO-APIC IDAndi Kleen2007-07-21
| | | | | | | | | | | | | | Linux 64bit only uses the IO-APIC ID as an internal cookie. In the future there could be some cases where the IO-APIC IDs are not unique because they share an 8 bit space with CPUs and if there are enough CPUs it is difficult to get them that. But Linux needs the io apic ID internally for its data structures. Assign unique IO APIC ids on table parsing. TBD do for 32bit too Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86: Always flush pages in change_page_attrAndi Kleen2007-07-21
| | | | | | | | | | | | | | | Fix a bug introduced with the CLFLUSH changes: we must always flush pages changed in cpa(), not just when they are reverted. Reenable CLFLUSH usage with that now (it was temporarily disabled for .22) Add some BUG_ONs Contains fixes from Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: Update defconfigAndi Kleen2007-07-21
| | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86_64: Update defconfigAndi Kleen2007-07-21
| | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* spufs: make signal-notification files readonly for NOSCHED contextsJeremy Kerr2007-07-21
| | | | | | | | | | | | Reading from the signal{1,2} files requires a spu_acquire_saved, so make these files write-only for contexts created with SPU_CREATE_NOSCHED. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PS3: Fix build with 32-bit toolchainsGeoff Levand2007-07-21
| | | | | | | | | | | | | The PS3 bootwrapper files use instructions only available on 64-bit CPUs. Add the code generation directive '.machine "ppc64"' for toolchains configured for 32-bit CPUs. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ps3: FLASH ROM Storage DriverGeert Uytterhoeven2007-07-21
| | | | | | | | | | | | | | | | Add a FLASH ROM Storage Driver for the PS3: - Implemented as a misc character device driver - Uses a fixed 256 KiB buffer allocated from boot memory as the hypervisor requires the writing of aligned 256 KiB blocks Cc: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ps3: BD/DVD/CD-ROM Storage DriverGeert Uytterhoeven2007-07-21
| | | | | | | | | | | | | | | | Add a BD/DVD/CD-ROM Storage Driver for the PS3: - Implemented as a SCSI device driver - Uses software scatter-gather with a 64 KiB bounce buffer as the hypervisor doesn't support scatter-gather Cc: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ps3: Disk Storage DriverGeert Uytterhoeven2007-07-21
| | | | | | | | | | | | | | | | | Add a Disk Storage Driver for the PS3: - Implemented as a block device driver with a dynamic major - Disk names (and partitions) are of the format ps3d%c(%u) - Uses software scatter-gather with a 64 KiB bounce buffer as the hypervisor doesn't support scatter-gather Cc: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* powerpc: tlb_32.c build fixMariusz Kozlowski2007-07-21
| | | | | | | | | | | | | | | | | | allnoconfig results in this: CC arch/powerpc/mm/tlb_32.o In file included from include/asm/tlb.h:60, from arch/powerpc/mm/tlb_32.c:30: include/asm-generic/tlb.h: In function 'tlb_flush_mmu': include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages' include/asm-generic/tlb.h: In function 'tlb_remove_page': include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release' Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: intel_cacheinfo.c:find_num_cache_leaves() should be __cpuinitAdrian Bunk2007-07-21
| | | | | | | | | | | | | WARNING: arch/i386/kernel/built-in.o(.text+0xb6a7): Section mismatch: reference to .init.text:find_num_cache_leaves (between 'init_intel_cacheinfo' and 'cache_shared_cpu_map_setup') It could be __init_refok, but gcc >= 4.0 anyway inlines it into the __cpuinit init_intel_cacheinfo(), and IMHO it's too small for "noinline __init". Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: PIT stop only, when in periodic or oneshot modeThomas Gleixner2007-07-21
| | | | | | | | | | | | | The patch is necessary on one of my boxen, where programming the stop sequence twice leads to PIT malfunction. Sigh ! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* NTP: move the cmos update code into ntp.cThomas Gleixner2007-07-21
| | | | | | | | | | | | | | | | i386 and sparc64 have the identical code to update the cmos clock. Move it into kernel/time/ntp.c as there are other architectures coming along with the same requirements. [akpm@linux-foundation.org: build fixes] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: David Miller <davem@davemloft.net> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* highres: improve debug outputIngo Molnar2007-07-21
| | | | | | | | | | Add some more debug information to the hrtimer and clock events code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* clockevents: fix resume logicThomas Gleixner2007-07-21
| | | | | | | | | | | | | | | | | | | | We need to make sure, that the clockevent devices are resumed, before the tick is resumed. The current resume logic does not guarantee this. Add CLOCK_EVT_MODE_RESUME and call the set mode functions of the clock event devices before resuming the tick / oneshot functionality. Fixup the existing users. Thanks to Nigel Cunningham for tracking down a long standing thinko, which affected the jinxed VAIO. [akpm@linux-foundation.org: xen build fix] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* revert "PIE randomization"Andrew Morton2007-07-21
| | | | | | | | | | | | | | | | | | | There are reports of this causing userspace failures (http://lkml.org/lkml/2007/7/20/421). Revert. Cc: Jan Kratochvil <honza@jikos.cz> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Ulrich Kunitz <kune@deine-taler.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Bret Towe" <magnade@gmail.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* i386: touch_nmi_watchdog() in print_trace_address()Konrad Rzeszutek2007-07-21
| | | | | | | | Prevent NMI watchdog triggering during long sysrq-T outputs. Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [SPARC64]: fix section mismatch warning in mdesc.cSam Ravnborg2007-07-20
| | | | | | | | | | | | Fix following warning: WARNING: vmlinux.o(.text+0x35264): Section mismatch: reference to .init.text:__alloc_bootmem (between 'mdesc_bootmem_alloc' and 'mdesc_bootmem_free') Rename mdesc_mem_ops to *_ops so modpost ignores __init references and declare mdesc_bootmem_alloc __init since it is only used during __init context. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: fix section mismatch warning in pci_sunv4Sam Ravnborg2007-07-20
| | | | | | | | | | | Fix following warning: WARNING: vmlinux.o(.text+0x3cf50): Section mismatch: reference to .init.text:page_in_phys_avail (between 'pci_sun4v_pbm_init' and 'sun4v_pci_init') pci_sun4v_pbm_init and sun4v_pci_init was only used under __init context so declare them _init. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Stop using drivers/char/rtc.cDavid S. Miller2007-07-20
| | | | | | | | | | The existing sparc64 mini_rtc driver can handle CMOS based rtcs trivially with just a few lines of code and the simplifies things tremendously. Tested on SB1500. Signed-off-by: David S. Miller <davem@davemloft.net>
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