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2008-10-13x86: add _PAGE_IOMAP pte flag for IO mappingsJeremy Fitzhardinge
Use one of the software-defined PTE bits to indicate that a mapping is intended for an IO address. On native hardware this is irrelevent, since a physical address is a physical address. But in a virtual environment, physical addresses are also virtualized, so there needs to be some way to distinguish between pseudo-physical addresses and actual hardware addresses; _PAGE_IOMAP indicates this intent. By default, __supported_pte_mask masks out _PAGE_IOMAP, so it doesn't even appear in the final pagetable. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: trace_hardirqs_fixup should now not be necessary: irqs are off.Alexander van Heukelum
The exception handlers in entry_32.S should now all call TRACE_IRQS_OFF before calling the C code. The calls to trace_hardirqs_fixup should now be unnecessary. Remove them. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF for the exception 3 (int3)Alexander van Heukelum
At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF for the nmiAlexander van Heukelum
At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF for exception 1 (debug)Alexander van Heukelum
At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF to entry_32.S in 'error_code'Alexander van Heukelum
Many exceptions use the same code path via the label 'error_code' in entry_32.S. At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: remove temporary DO_TRAP macros, expanding the last one usedAlexander van Heukelum
Only one use of the DO_TRAP macros remains. Expand that one and remove the macros now. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 19 to an interrupt gateAlexander van Heukelum
Handle SIMD coprocessor exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 18 to an interrupt gateAlexander van Heukelum
Handle machine check exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 17 to an interrupt gateAlexander van Heukelum
Handle alignment check exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 16 to an interrupt gateAlexander van Heukelum
Handle coprocessor error exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 15 to an interrupt gateAlexander van Heukelum
Handle exception 15 with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 13 to an interrupt gateAlexander van Heukelum
Handle general protection exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 12 to an interrupt gateAlexander van Heukelum
Handle stack segment exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 11 to an interrupt gateAlexander van Heukelum
Handle segment not present exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 10 to an interrupt gateAlexander van Heukelum
Handle invalid TSS exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 9 to an interrupt gateAlexander van Heukelum
Handle coprocessor segment overrun exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 7 to an interrupt gateAlexander van Heukelum
Handle no coprocessor exception with interrupt initially off. device_not_available in entry_32.S calls either math_state_restore or math_emulate. This patch adds an extra indirection to be able to re-enable interrupts explicitly in traps_32.c Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 6 to an interrupt gateAlexander van Heukelum
Handle invalid opcode exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 5 to an interrupt gateAlexander van Heukelum
Handle bounds exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 4 to an interrupt gateAlexander van Heukelum
Handle overflow exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: expand exception 3 DO_TRAP macroAlexander van Heukelum
The int3 exception was already takes as an interrupt and do_int3 does not fit in the new DO_ERROR macro. This patch just expands the DO_TRAP macro and rearranges the code a bit. No functional changes intended. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 0 to an interrupt gateAlexander van Heukelum
Handle divide error exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: prepare to convert exceptions to interruptsAlexander van Heukelum
There is some macro magic in traps_32.c to construct standard exception dispatch functions. This patch renames the DO_ERROR- like macros to DO_TRAP, and introduces new DO_ERROR ones that conditionally reenable interrupts explicitly, like x86_64. No code changes. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: remove kprobes' restore_interrupts in favour of conditional_stiAlexander van Heukelum
x86_64 uses a helper function conditional_sti in traps_64.c which is equal to restore_interrupts in kprobes.h. The only user of restore_interrupts is in traps_32.c. Introduce conditional_sti for i386 and remove restore_interrupts. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: rename discontig_32.c to numa_32.cYinghai Lu
name it in line with its purpose. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13arch/x86/kernel/smpboot.c: Clarify when irq processing begins.Manfred Spraul
Secondary cpus start with local interrupts disabled. start_secondary() first initializes the new cpu, then it enables the local interrupts. (although interrupts are enabled within smp_callin() as well). Right now, the local interrupts are enabled as a side effect of calling ipi_call_lock_irq(). The attached patch clarifies when local interrupts are enabled. Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86-64: slightly stream-line 32-bit syscall entry codeJan Beulich
Avoid updating registers or memory twice as well as needlessly loading or copying registers. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12Merge branch 'x86-core-v2-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip This merges in: x86/build, x86/microcode, x86/spinlocks, x86/memory-corruption-check, x86/early-printk, x86/xsave, x86/quirks, x86/setup, x86/signal, core/signal, x86/urgent, x86/xen * 'x86-core-v2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (142 commits) x86: make processor type select depend on CONFIG_EMBEDDED x86: extend processor type select help text x86, amd-iommu: propagate PCI device enabling error warnings: fix arch/x86/kernel/io_apic_64.c warnings: fix arch/x86/kernel/early_printk.c x86, fpu: check __clear_user() return value x86: memory corruption check - cleanup x86: ioperm user_regset xen: do not reserve 2 pages of padding between hypervisor and fixmap. xen: use spin_lock_nest_lock when pinning a pagetable x86: xsave: set FP, SSE bits in the xsave header in the user sigcontext x86: xsave: fix error condition in save_i387_xstate() x86: SB450: deprioritize DMI quirks x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC x86: replace a magic number with a named constant in the VESA boot code x86 setup: remove IMAGE_OFFSET x86 setup: remove DEF_INITSEG and DEF_SETUPSEG Revert "x86: fix ghost EDD devices in /sys again" x86 setup: fix ghost entries under /sys/firmware/edd take 3 x86: signal: remove indent in restore_sigcontext() ...
2008-10-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: Fix build failures in board code avr32: Allow selecting multiple pins at once avr32: Minor pm_power_off cleanup avr32: Implement {read,write}[bwl]_be avr32: Replace static clock list with dynamic linked list avr32: Use platform_driver_probe for pdc platform driver avr32: Use platform_driver_probe for pio platform driver avr32: Provide a way to deselect pins in the portmux ngw100: export J15 through sysfs avr32: Allow fine-grained control over LCDC pins avr32: added mem kernel command line option support Add kernel support for oprofile callgraphs on AVR32 avr32: use the new byteorder headers
2008-10-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (24 commits) MMC: Use timeout values from CSR MMC: CSD and CID timeout values sdhci: 'scratch' may be used uninitialized mmc: explicitly mention SDIO support in Kconfig mmc: remove redundant "depends on" Fix comment in include/linux/mmc/host.h sdio: high-speed support mmc_block: hard code 512 byte block size sdhci: force high speed capability on some controllers mmc_block: filter out PC requests mmc_block: indicate strict ordering mmc_block: inform block layer about sector count restriction sdio: give sdio irq thread a host specific name sdio: make sleep on error interruptable sdhci: reduce card detection delay sdhci: let the controller wait for busy state to end atmel-mci: Add missing flush_dcache_page() in PIO transfer code atmel-mci: Don't overwrite error bits when NOTBUSY is set atmel-mci: Add experimental DMA support atmel-mci: support multiple mmc slots ...
2008-10-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] orion5x_wdt.c: add spinlocking [WATCHDOG] Orion: add hardware watchdog support [WATCHDOG] omap_wdt.c: cleanup a bit omap_wdt.c [WATCHDOG] omap_wdt.c: another ioremap() fix [WATCHDOG] omap_wdt.c: sync linux-omap changes [WATCHDOG] Add AT91SAM9X watchdog [WATCHDOG] Add driver for winbond w83697ug/uf watchdog feature [WATCHDOG] add watchdog driver IT8716 IT8726 IT8712J/K
2008-10-12Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix early panic on amd64 due to typo in supported CPU section x86, early_ioremap: fix fencepost error x86: avoid dereferencing beyond stack + THREAD_SIZE
2008-10-12avr32: Fix build failures in board codeHaavard Skinnemoen
Fix a few instances of board code breakage introduced by the atmel-mci platform interface changes. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-10-12avr32: Allow selecting multiple pins at onceJulien May
at32_select_periph() now takes an u32 bitmask rather than a single pin. This allows to set multiple pins at once. Signed-off-by: Alex Raimondi <mailinglist@miromico.ch> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-10-12Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', ↵Ingo Molnar
'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2
2008-10-12Merge branch 'master' of ↵Haavard Skinnemoen
git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/atmel-mci-2.6.28
2008-10-12x86: make processor type select depend on CONFIG_EMBEDDEDIngo Molnar
deselecting one of the CPU type CONFIG_CPU_SUP_* config options can render a kernel unbootable. Make sure this option is only available if CONFIG_EMBEDDED is enabled. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12x86: extend processor type select help textIngo Molnar
extend the help text of the CONFIG_CPU_SUP_* config options to express what it does and what effects it has. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12x86, amd-iommu: propagate PCI device enabling errorIngo Molnar
propagate an error in enabling the PCI device. Also eliminates this warning: arch/x86/kernel/amd_iommu_init.c: In function ‘init_iommu_one’: arch/x86/kernel/amd_iommu_init.c:726: warning: ignoring return value of ‘pci_enable_device’, declared with attribute warn_unused_result Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12warnings: fix arch/x86/kernel/io_apic_64.cIngo Molnar
fix: arch/x86/kernel/io_apic_64.c: In function ‘print_local_APIC’: arch/x86/kernel/io_apic_64.c:1284: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ arch/x86/kernel/io_apic_64.c:1285: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ We want to print the two halves of 'icr' at 32 bit width. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12warnings: fix arch/x86/kernel/early_printk.cIngo Molnar
fix warning: arch/x86/kernel/early_printk.c:993: warning: ‘enable_debug_console’ defined but not used Eliminate dead code. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12x86, fpu: check __clear_user() return valueIngo Molnar
fix warning: arch/x86/kernel/xsave.c: In function ‘save_i387_xstate’: arch/x86/kernel/xsave.c:98: warning: ignoring return value of ‘__clear_user’, declared with attribute warn_unused_result check the return value and act on it. We should not be ignoring faults at this point. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12Merge branch 'linus' into x86/xsaveIngo Molnar
2008-10-12x86: memory corruption check - cleanupIngo Molnar
Move the prototypes from the generic kernel.h header to the more appropriate include/asm-x86/bios_ebda.h header file. Also, remove the check from the power management code - this is a pure x86 matter for now. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12Merge branch 'linus' into x86/memory-corruption-checkIngo Molnar
2008-10-12Merge branches 'core/signal' and 'x86/spinlocks' into x86/xenIngo Molnar
Conflicts: include/asm-x86/spinlock.h
2008-10-12Merge branch 'x86/signal' into core/signalIngo Molnar
2008-10-12Merge branch 'linus' into x86/signalIngo Molnar
Conflicts: arch/x86/kernel/signal_64.c
2008-10-12Merge branch 'linus' into x86/quirksIngo Molnar
Conflicts: arch/x86/kernel/early-quirks.c
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