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2008-02-13xtime_lock vs update_process_timesPeter Zijlstra
Commit d3d74453c34f8fd87674a8cf5b8a327c68f22e99 ("hrtimer: fixup the HRTIMER_CB_IRQSAFE_NO_SOFTIRQ fallback") broke several archs, and since only Russell bothered to merge the fix, and Greg to ACK his arch, I'm sending this for merger. I have confirmation that the Alpha bit results in a booting kernel. That leaves: blackfin, frv, sh and sparc untested. The deadlock in question was found by Russell: IRQ handle -> timer_tick() - xtime seqlock held for write -> update_process_times() -> run_local_timers() -> hrtimer_run_queues() -> hrtimer_get_softirq_time() - tries to get a read lock Now, Thomas assures me the fix is trivial, only do_timer() needs to be done under the xtime_lock, and update_process_times() can savely be removed from under it. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Greg Ungerer <gerg@uclinux.org> CC: Richard Henderson <rth@twiddle.net> CC: Bryan Wu <bryan.wu@analog.com> CC: David Howells <dhowells@redhat.com> CC: Paul Mundt <lethal@linux-sh.org> CC: William Irwin <wli@holomorphy.com> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-13FRV: Fix up parse error in linker scriptDavid Howells
Fix up parse error in FRV linker script, presumably introduced through changes to the INIT_TEXT and EXIT_TEXT macros. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-13x86: pit_clockevent can be staticHarvey Harrison
arch/x86/kernel/i8253.c:98:27: warning: symbol 'pit_clockevent' was not declared. Should it be static? Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-13x86: EFI runtime code mapping enhancementHuang, Ying
This patch enhances EFI runtime code memory mapping as following: - Move __supported_pte_mask & _PAGE_NX checking before invoking runtime_code_page_mkexec(). This makes it possible for compiler to eliminate runtime_code_page_mkexec() on machine without NX support. - Use set_memory_x/nx in early_mapping_set_exec(). This eliminates the duplicated implementation. This patch has been tested on Intel x86_64 platform with EFI64/32 firmware. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-13x86: EFI: fix use of unitialized variable and the cache logicThomas Gleixner
Andi Kleen pointed out that the cache attribute logic is reverse in efi_enter_virtual_mode(). This problem alone is harmless as we do not (yet) do cache attribute conflict resolution. (This bug was not present in the original EFI submission - I introduced it while fixing up rejects.) While reviewing this code I noticed a second, worse problem: the use of uninitialized md->virt_addr. Fix both problems. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-13x86: CPA: fix gbpages support in try_preserve_large_pageAndi Kleen
[ mingo@elte.hu: while gbpages cannot be enabled on mainline currently, keep the code uptodate and this fix is easy enough. ] Use correct page sizes and masks for GB pages in try_preserve_large_page() This prevents a boot hang on a GB capable system with CONFIG_DIRECT_GBPAGES enabled. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-13xen: unpin initial Xen pagetable once we're finished with itJeremy Fitzhardinge
Unpin the Xen-provided pagetable once we've finished with it, so it doesn't cause stray references which cause later swapper_pg_dir pagetable updates to fail. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Tested-by: Jody Belka <knew-linux@pimb.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-13x86/early_ioremap: don't assume we're using swapper_pg_dirJeremy Fitzhardinge
At the early stages of boot, before the kernel pagetable has been fully initialized, a Xen kernel will still be running off the Xen-provided pagetables rather than swapper_pg_dir[]. Therefore, readback cr3 to determine the base of the pagetable rather than assuming swapper_pg_dir[]. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Tested-by: Jody Belka <knew-linux@pimb.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-13x86: fixup machine_ops reboot_{32|64}.c unification falloutJody Belka
When reboot_32.c and reboot_64.c were unified (commit 4d022e35fd...), the machine_ops code was broken, leading to xen pvops kernels failing to properly halt/poweroff/reboot etc. This fixes that up. Signed-off-by: Jody Belka <knew-linux@pimb.org> Cc: Miguel Boton <mboton@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-11x86: vdso_install fixRoland McGrath
The makefile magic for installing the 32-bit vdso images on disk had a little error. A single-line change would fix that bug, but this does a little more to reduce the error-prone duplication of this bit of makefile variable magic. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-11Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix build for sim_defconfig
2008-02-11[IA64] Fix build for sim_defconfigTony Luck
Commit bdc807871d58285737d50dc6163d0feb72cb0dc2 broke the build for this config because the sim_defconfig selects CONFIG_HZ=250 but include/asm-ia64/param.h has an ifdef for the simulator to force HZ to 32. So we ended up with a kernel/timeconst.h set for HZ=250 ... which then failed the check for the right HZ value and died with: Drop the #ifdef magic from param.h and make force CONFIG_HZ=32 directly for the simulator. Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-02-11x86: remove over noisy debug printkThomas Gleixner
pageattr-test.c contains a noisy debug printk that people reported. The condition under which it prints (randomly tapping into a mem_map[] hole and not being able to c_p_a() there) is valid behavior and not interesting to report. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-11Use proper abstractions in quirk_intel_irqbalanceMatthew Wilcox
Since we may not have a pci_dev for the device we need to access, we can't use pci_read_config_word. But raw_pci_read is an internal implementation detail; it's better to use the architected pci_bus_read_config_word interface. Using PCI_DEVFN instead of a mysterious constant helps reassure everyone that we really do intend to access device 8. [ Thanks to Grant Grundler for pointing out to me that this is exactly what the write immediately above this is doing -- enabling device 8 to respond to config space cycles. - Matthew Grant also says: "Can you also add a comment which points at the Intel documentation? The 'Intel E7320 Memory Controller Hub (MCH) Datasheet' at http://download.intel.com/design/chipsets/datashts/30300702.pdf Page 69 documents register F4h (DEVPRES1). And I just doubled checked that the 0xf4 register value is restored later in the quirk (obvious when you look at the code but not from the patch" so here it is. - Linus ] Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-10Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (30 commits) [ARM] constify function pointer tables [ARM] 4823/1: AT91 section fix [ARM] 4824/1: pxa: clear RDH bit after any reset [ARM] pxa: remove debugging PM: printk ARM: OMAP1: Misc clean-up ARM: OMAP1: Update defconfigs for omap1 ARM: OMAP1: Palm Tungsten E board clean-up ARM: OMAP1: Use I2C bus registration helper for omap1 ARM: OMAP1: Remove omap_sram_idle() ARM: OMAP1: PM fixes for OMAP1 ARM: OMAP1: Use MMC multislot structures for Siemens SX1 board ARM: OMAP1: Make omap1 use MMC multislot structures ARM: OMAP1: Change the comments to C style ARM: OMAP1: Make omap1 boards to use omap_nand_platform_data ARM: OMAP: Add helper module for board specific I2C bus registration ARM: OMAP: Add dmtimer support for OMAP3 ARM: OMAP: Pre-3430 clean-up for dmtimer.c ARM: OMAP: Add DMA support for chaining and 3430 ARM: OMAP: Add 24xx GPIO debounce support ARM: OMAP: Get rid of unnecessary ifdefs in GPIO code ...
2008-02-10Change pci_raw_ops to pci_raw_read/writeMatthew Wilcox
We want to allow different implementations of pci_raw_ops for standard and extended config space on x86. Rather than clutter generic code with knowledge of this, we make pci_raw_ops private to x86 and use it to implement the new raw interface -- raw_pci_read() and raw_pci_write(). Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-10PCI x86: always use conf1 to access config space below 256 bytesIvan Kokshaysky
Thanks to Loic Prylli <loic@myri.com>, who originally proposed this idea. Always using legacy configuration mechanism for the legacy config space and extended mechanism (mmconf) for the extended config space is a simple and very logical approach. It's supposed to resolve all known mmconf problems. It still allows per-device quirks (tweaking dev->cfg_size). It also allows to get rid of mmconf fallback code. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (32 commits) x86: cpa, strict range check in try_preserve_large_page() x86: cpa, enable CONFIG_DEBUG_PAGEALLOC on 64-bit x86: cpa, use page pool x86: introduce page pool in cpa x86: DEBUG_PAGEALLOC: enable after mem_init() brk: help text typo fix lguest: accept guest _PAGE_PWT page table entries x86 PM: update stale comments x86 PM: consolidate suspend and hibernation code x86 PM: rename 32-bit files in arch/x86/power x86 PM: move 64-bit hibernation files to arch/x86/power x86: trivial printk optimizations x86: fix early_ioremap pagetable ops x86: construct 32-bit boot time page tables in native format. x86, core: remove CONFIG_FORCED_INLINING x86: avoid unused variable warning in mm/init_64.c x86: fixup more paravirt fallout brk: document randomize_va_space and CONFIG_COMPAT_BRK (was Re: x86: fix sparse warnings in acpi/bus.c x86: fix sparse warning in topology.c ...
2008-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: (24 commits) [SPARC]: Add solaris/sunos binary support to feature removal schedule. [SPARC]: Merge asm-sparc{,64}/a.out.h [SPARC]: Merge asm-sparc{,64}/fb.h [SPARC]: Merge asm-sparc{,64}/errno.h [SPARC]: Merge asm-sparc{,64}/emergency-restart.h [SPARC]: Merge asm-sparc{,64}/div64.h [SPARC]: Merge asm-sparc{,64}/device.h [SPARC]: Merge asm-sparc{,64}/current.h [SPARC]: Merge asm-sparc{,64}/cputime.h [SPARC]: Merge asm-sparc{,64}/cache.h [SPARC]: Merge asm-sparc{,64}/byteorder.h [SPARC]: Merge asm-sparc{,64}/bugs.h [SPARC]: Merge asm-sparc{,64}/bug.h [SPARC]: Kill BSD errno translation table and header files. [SPARC]: Merge asm-sparc{,64}/bpp.h [SPARC]: Merge include/asm-sparc{,64}/auxvec.h [SPARC]: Merge include/asm-sparc{,64}/of_device.h [SPARC]: Merge include/asm-sparc{,64}/prom.h [SPARC]: Remove of_platform_device_create [SPARC64]: Add kretprobe support. ...
2008-02-09Update arch/x86/boot/.gitignore with new auto-generated filesS.Çağlar Onur
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-09Merge branches 'master', 'omap1-upstream' and 'orion' into develRussell King
* master: [ARM] constify function pointer tables [ARM] 4823/1: AT91 section fix [ARM] 4824/1: pxa: clear RDH bit after any reset [ARM] pxa: remove debugging PM: printk * omap1-upstream: ARM: OMAP1: Misc clean-up ARM: OMAP1: Update defconfigs for omap1 ARM: OMAP1: Palm Tungsten E board clean-up ARM: OMAP1: Use I2C bus registration helper for omap1 ARM: OMAP1: Remove omap_sram_idle() ARM: OMAP1: PM fixes for OMAP1 ARM: OMAP1: Use MMC multislot structures for Siemens SX1 board ARM: OMAP1: Make omap1 use MMC multislot structures ARM: OMAP1: Change the comments to C style ARM: OMAP1: Make omap1 boards to use omap_nand_platform_data ARM: OMAP: Add helper module for board specific I2C bus registration ARM: OMAP: Add dmtimer support for OMAP3 ARM: OMAP: Pre-3430 clean-up for dmtimer.c ARM: OMAP: Add DMA support for chaining and 3430 ARM: OMAP: Add 24xx GPIO debounce support ARM: OMAP: Get rid of unnecessary ifdefs in GPIO code ARM: OMAP: Add 3430 gpio support ARM: OMAP: Add 3430 CPU identification macros ARM: OMAP: Request DSP memory for McBSP * orion: [ARM] Orion: Use the sata_mv driver for the TS-209 SATA [ARM] Orion: Use the sata_mv driver for the Kurobox SATA [ARM] Orion: free up kernel virtual address space [ARM] Orion: distinguish between physical and virtual addresses [ARM] Orion: kill orion_early_putstr() [ARM] Orion: update defconfig [ARM] Orion: Use the sata_mv driver for the integrated SATA controller
2008-02-09[ARM] constify function pointer tablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-09[ARM] 4823/1: AT91 section fixDavid Brownell
Fix section warning: WARNING: arch/arm/mach-at91/built-in.o(.text+0xd74): Section mismatch in reference from the function init_programmable_clock() to the function .init.text:at91_css_to_clk() The function init_programmable_clock() references the function __init at91_css_to_clk(). This is often because init_programmable_clock lacks a __init annotation or the annotation of at91_css_to_clk is wrong. In this case the only calls to and from init_programmable_clock() are from code marked as "__init", so this fix is trivially correct. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Uwe Kleine-Knig <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-09[ARM] 4824/1: pxa: clear RDH bit after any resetDmitry Krivoschekov
According to PXA300/310 and PXA320 Developer manuals, the ASCR[RDH] "bit needs to be cleared as part of the software initialization coming out of any reset and coming out of D3". The latter requirement is addressed by commit "c4d1fb627ff3072", as for the former (coming out of any reset), the kernel relies on boot loaders and assumes that RDH bit is cleared there. Though, not all bootloaders follow the rule so we have to clear the bit in kernel. We clear the RDH bit in pxa3xx_init() function since it is always invoked after any reset. We also preserve D1S, D2S and D3S bits from being cleared in case we invoke pxa3xx_init() function not from normal hardware reset (e.g. kexec scenario), so these bits can be properly referenced later. Signed-off-by: Dmitry Krivoschekov <dmitry.krivoschekov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-09x86: cpa, strict range check in try_preserve_large_page()Thomas Gleixner
Right now, we check only the first 4k page for static required protections. This does not take overlapping regions into account. So we might end up setting the wrong permissions/protections for other parts of this large page. This can be optimized further, but correctness is the important part. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-09x86: cpa, enable CONFIG_DEBUG_PAGEALLOC on 64-bitThomas Gleixner
Now, that the page pool is in place we can enable DEBUG_PAGEALLOC on 64bit. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-09x86: cpa, use page poolThomas Gleixner
Switch the split page code to use the page pool. We do this unconditionally to avoid different behaviour with and without DEBUG_PAGEALLOC enabled. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-09x86: introduce page pool in cpaThomas Gleixner
DEBUG_PAGEALLOC was not possible on 64-bit due to its early-bootup hardcoded reliance on PSE pages, and the unrobustness of the runtime splitup of large pages. The splitup ended in recursive calls to alloc_pages() when a page for a pte split was requested. Avoid the recursion with a preallocated page pool, which is used to split up large mappings and gets refilled in the return path of kernel_map_pages after the split has been done. The size of the page pool is adjusted to the available memory. This part just implements the page pool and the initialization w/o using it yet. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-09x86 PM: update stale commentsRafael J. Wysocki
In some suspend and hibernation files in arch/x86/power there are comments referring to arch/x86-64 and arch/i386 . Update them to reflect the current code layout. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86 PM: consolidate suspend and hibernation codeRafael J. Wysocki
Move the hibernation-specific code from arch/x86/power/suspend_64.c to a separate file (hibernate_64.c) and the CPU-handling code to cpu_64.c (in line with the corresponding 32-bit code). Simplify arch/x86/power/Makefile . Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86 PM: rename 32-bit files in arch/x86/powerRafael J. Wysocki
Rename cpu.c, suspend.c and swsusp.S in arch/x86/power to cpu_32.c, hibernate_32.c and hibernate_asm_32.S, respectively, and update the purpose and copyright information in these files. Update the Makefile in arch/x86/power to reflect the above changes. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86 PM: move 64-bit hibernation files to arch/x86/powerRafael J. Wysocki
Move arch/x86/kernel/suspend_64.c to arch/x86/power . Move arch/x86/kernel/suspend_asm_64.S to arch/x86/power as hibernate_asm_64.S . Update purpose and copyright information in arch/x86/power/suspend_64.c and arch/x86/power/hibernate_asm_64.S . Update the Makefiles in arch/x86, arch/x86/kernel and arch/x86/power to reflect the above changes. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: trivial printk optimizationsDenys Vlasenko
In arch/x86/boot/printf.c gets rid of unused tail of digits: const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; (we are using 0-9a-f only) Uses smaller/faster lowercasing (by ORing with 0x20) if we know that we work on numbers/digits. Makes strtoul smaller, and also we are getting rid of static const char small_digits[] = "0123456789abcdefx"; static const char large_digits[] = "0123456789ABCDEFX"; since this works equally well: static const char digits[16] = "0123456789ABCDEF"; Size savings: $ size vmlinux.org vmlinux text data bss dec hex filename 877320 112252 90112 1079684 107984 vmlinux.org 877048 112252 90112 1079412 107874 vmlinux It may be also a tiny bit faster because code has less branches now, but I doubt it is measurable. [ hugh@veritas.com: uppercase pointers fix ] Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: fix early_ioremap pagetable opsIan Campbell
Some important parts of f6df72e71eba621b2f5c49b3a763116fac748f6e got dropped along the way, reintroduce them. Only affects paravirt guests. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: construct 32-bit boot time page tables in native format.Ian Campbell
Specifically the boot time page tables in a CONFIG_X86_PAE=y enabled kernel are in PAE format. early_ioremap is updated to use the standard page table accessors. Clear any mappings beyond max_low_pfn from the boot page tables in native_pagetable_setup_start because the initial mappings can extend beyond the range of physical memory and into the vmalloc area. Derived from patches by Eric Biederman and H. Peter Anvin. [ jeremy@goop.org: PAE swapper_pg_dir needs to be page-sized fix ] Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Mika Penttilä <mika.penttila@kolumbus.fi> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86, core: remove CONFIG_FORCED_INLININGHarvey Harrison
Other than the defconfigs, remove the entry in compiler-gcc4.h, Kconfig.debug and feature-removal-schedule.txt. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: avoid unused variable warning in mm/init_64.cThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-09x86: fixup more paravirt falloutIngo Molnar
Use a common irq_return entry point for all the iret places, which need the paravirt INTERRUPT return wrapper. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: fix sparse warning in topology.cHarvey Harrison
arch/x86/kernel/topology.c:56:2: warning: returning void-valued expression Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: sparse warnings in pageattr.cHarvey Harrison
Adjust the definition of lookup_address to take an unsigned long level argument. Adjust callers in xen/mmu.c that pass in a dummy variable. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: sparse warning in therm_throt.cHarvey Harrison
arch/x86/kernel/cpu/mcheck/therm_throt.c:121:2: warning: returning void-valued expression Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: fix sparse warning in xen/time.cHarvey Harrison
Use xen_khz to denote xen_specific clock speed. Avoid shadowing cpu_khz. arch/x86/xen/time.c:220:6: warning: symbol 'cpu_khz' shadows an earlier one include/asm/tsc.h:17:21: originally declared here Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: MFGPT: fix typo in printk in mfgpt_timer_setupArnd Hannemann
Signed-off-by: Arnd Hannemann <hannemann@i4.informatik.rwth-aachen.de> Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: make sure the right MFGPT timer fired the timer tickJordan Crouse
Each AMD Geode MFGPT timer interrupt output is paired with another timer; esentially the interrupt goes if either timer fires. This is okay, but the handlers need to be aware of this. Make sure in the timer tick handler that our timer really did expire. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: MFGPT: fix a potential race when disabling a timerAndres Salomon
We *really* don't want to be reading MFGPTx_SETUP and writing back those values. What we want to be doing is clearing CMP1 and CMP2 unconditionally; otherwise, we have races where CMP1 and/or CMP2 fire after we've read MFGPTx_SETUP. They can also fire between when we've written ~CNTEN to the register, and when the new register values get copied to the timer's version of the register. By clearing both fields, we're okay. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: MFGPT: Use "just-in-time" detection for the MFGPT timersJordan Crouse
There isn't much value to always detecting the MFGPT timers on Geode platforms; detection is only needed when something wants to use the timers. Move the detection code so that it gets called the first time a timer is allocated. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: MFGPT: make mfgpt_timer_setup available outside of mfgpt_32.cAndres Salomon
We need to be called from elsewhere, and this gets some #ifdefs out of the .c file. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: MFGPT: replace 'flags' field with 'avail' bitAndres Salomon
Drop F_AVAIL and the 'flags' field, replacing with an 'avail' bit. This looks more understandable to me. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE: MFGPT: drop module owner usage from MFGPT APIAndres Salomon
We had planned to use the 'owner' field for allowing re-allocation of MFGPTs; however, doing it by module owner name isn't flexible enough. So, drop this for now. If it turns out that we need timers in modules, we'll need to come up with a scheme that matches the write-once fields of the MFGPTx_SETUP register, and drops ponies from the sky. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-09x86: GEODE fix MFGPT input clock valueWilly Tarreau
The GEODE MFGPT code assumed that 32kHz was 32000 Hz while the boards run on a 32.768 kHz digital watch crystal. In practise, it will not change the timer's frequency as the skew was only 2.4%, but it should provide more accurate intervals. Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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