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2009-03-30xen: clean up gate trap/interrupt constantsJeremy Fitzhardinge1-3/+3
Use GATE_INTERRUPT/TRAP rather than 0xe/f. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen: set _PAGE_NX in __supported_pte_mask before pagetable constructionJeremy Fitzhardinge1-1/+6
Some 64-bit machines don't support the NX flag in ptes. Check for NX before constructing the kernel pagetables. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen/mmu: weaken flush_tlb_other testJeremy Fitzhardinge1-2/+2
Impact: fixes crashing bug There's no particular problem with getting an empty cpu mask, so just shortcut-return if we get one. Avoids crash reported by Christophe Saout <christophe@saout.de> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen/mmu: some early pagetable cleanupsJeremy Fitzhardinge2-14/+28
1. make sure early-allocated ptes are pinned, so they can be later unpinned 2. don't pin pmd+pud, just make them RO 3. scatter some __inits around Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30x86-64: non-paravirt systems always has PSE and PGEJeremy Fitzhardinge1-1/+7
A paravirtualized system may not have PSE or PGE available to guests, so they are not required features. However, without paravirt we can assume that any x86-64 implementation will have them available. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30Xen: Add virt_to_pfn helper functionAlex Nixon1-1/+2
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
2009-03-30x86-64: remove PGE from must-have feature listJeremy Fitzhardinge1-1/+1
PGE may not be available when running paravirtualized, so test the cpuid bit before using it. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen: mask XSAVE from cpuidJeremy Fitzhardinge1-6/+44
Xen leaves XSAVE set in cpuid, but doesn't allow cr4.OSXSAVE to be set. This confuses the kernel and it ends up crashing on an xsetbv instruction. At boot time, try to set cr4.OSXSAVE, and mask XSAVE out of cpuid it we can't. This will produce a spurious error from Xen, but allows us to support XSAVE if/when Xen does. This also factors out the cpuid mask decisions to boot time. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30NULL noise: arch/x86/xen/smp.cHannes Eder1-2/+2
Fix this sparse warnings: arch/x86/xen/smp.c:316:52: warning: Using plain integer as NULL pointer arch/x86/xen/smp.c:421:60: warning: Using plain integer as NULL pointer Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen: remove xen_load_gdt debugJeremy Fitzhardinge1-3/+0
Don't need the noise. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen: make xen_load_gdt simplerJeremy Fitzhardinge1-8/+6
Remove use of multicall machinery which is unused (gdt loading is never performance critical). This removes the implicit use of percpu variables, which simplifies understanding how the percpu code's use of load_gdt interacts with this code. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen: clean up xen_load_gdtJeremy Fitzhardinge1-2/+13
Makes the logic a bit clearer. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-30xen: split construction of p2m mfn tables from registrationJeremy Fitzhardinge1-1/+6
Build the p2m_mfn_list_list early with the rest of the p2m table, but register it later when the real shared_info structure is in place. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-29xen: separate p2m allocation from settingJeremy Fitzhardinge2-17/+47
When doing very early p2m setting, we need to separate setting from allocation, so split things up accordingly. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-29xen: disable preempt for leave_lazy_mmuJeremy Fitzhardinge1-0/+2
xen_mc_flush() requires preemption to be disabled for its own sanity, so disable it while we're flushing. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-29x86/paravirt: use percpu_ rather than __get_cpu_varJeremy Fitzhardinge1-5/+5
Impact: minor optimisation percpu_read/write is a slightly more direct way of getting to percpu data. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2009-03-29x86/paravirt: allow preemption with lazy mmu modeJeremy Fitzhardinge2-10/+5
Impact: remove obsolete checks, simplification Lift restrictions on preemption with lazy mmu mode, as it is now allowed. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2009-03-29x86/paravirt: finish change from lazy cpu to context switch start/endJeremy Fitzhardinge8-33/+34
Impact: fix lazy context switch API Pass the previous and next tasks into the context switch start end calls, so that the called functions can properly access the task state (esp in end_context_switch, in which the next task is not yet completely current). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2009-03-29x86/paravirt: flush pending mmu updates on context switchJeremy Fitzhardinge9-18/+42
Impact: allow preemption during lazy mmu updates If we're in lazy mmu mode when context switching, leave lazy mmu mode, but remember the task's state in TIF_LAZY_MMU_UPDATES. When we resume the task, check this flag and re-enter lazy mmu mode if its set. This sets things up for allowing lazy mmu mode while preemptible, though that won't actually be active until the next change. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2009-03-29x86/pvops: replace arch_enter_lazy_cpu_mode with arch_start_context_switchJeremy Fitzhardinge5-24/+6
Impact: simplification, prepare for later changes Make lazy cpu mode more specific to context switching, so that it makes sense to do more context-switch specific things in the callbacks. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2009-03-29x86/paravirt: remove lazy mode in interruptsJeremy Fitzhardinge5-21/+5
Impact: simplification, robustness Make paravirt_lazy_mode() always return PARAVIRT_LAZY_NONE when in an interrupt. This prevents interrupt code from accidentally inheriting an outer lazy state, and instead does everything synchronously. Outer batched operations are left deferred. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de>
2009-03-28Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds1-1/+1
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c-core: Some style cleanups i2c-piix4: Add support for the Broadcom HT1100 chipset i2c-piix4: Add support to SB800 SMBus changes i2c-pca-platform: Use defaults if no platform_data given i2c-algo-pca: Use timeout for checking the state machine i2c-algo-pca: Rework waiting for a free bus i2c-algo-pca: Add PCA9665 support i2c: Adapt debug macros for KERN_* constants i2c-davinci: Fix timeout handling i2c: Adapter timeout is in jiffies i2c: Set a default timeout value for all adapters i2c: Add missing KERN_* constants to printks i2c-algo-pcf: Handle timeout correctly i2c-algo-pcf: Style cleanups eeprom/at24: Remove EXPERIMENTAL i2c-nforce2: Add support for MCP67, MCP73, MCP78S and MCP79 i2c: Clarify which clients are auto-removed i2c: Let checkpatch shout on users of the legacy model i2c: Document the different ways to instantiate i2c devices
2009-03-28Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds641-12333/+41056
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (422 commits) [ARM] 5435/1: fix compile warning in sanity_check_meminfo() [ARM] 5434/1: ARM: OMAP: Fix mailbox compile for 24xx [ARM] pxa: fix the bad assumption that PCMCIA sockets always start with 0 [ARM] pxa: fix Colibri PXA300 and PXA320 LCD backlight pins imxfb: Fix TFT mode i.MX21/27: remove ifdef CONFIG_FB_IMX imxfb: add clock support mxc: add arch_reset() function clkdev: add possibility to get a clock based on the device name i.MX1: remove fb support from mach-imx [ARM] pxa: build arch/arm/plat-pxa/mfp.c only when PXA3xx or ARCH_MMP defined Gemini: Add support for Teltonika RUT100 Gemini: gpiolib based GPIO support v2 MAINTAINERS: add myself as Gemini architecture maintainer ARM: Add Gemini architecture v3 [ARM] OMAP: Fix compile for omap2_init_common_hw() MAINTAINERS: Add myself as Faraday ARM core variant maintainer ARM: Add support for FA526 v2 [ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.h [ARM] collie: fix two minor formatting nits ...
2009-03-28Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6Linus Torvalds36-537/+1204
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: Blackfin arch: be less noisy when gets a gpio conflict after kernel has booted Blackfin arch: add RSI's definitions to bf514 and bf516 Blackfin arch: add link-time asserts to make sure on-chip regions dont overflow Blackfin arch: sport spi needs 6 gpio pins Blackfin arch: add sport-spi related resource stuff to board file Blackfin arch: Blacklist Hibernate (PM_SUSPEND_MEM) on BF561 as well Blackfin arch: Privide BF537-STAMP platform data of ADP5520 Multifunction driver Blackfin arch: enable the platfrom PATA driver with CF Cards Blackfin arch: clean up sports header file Blackfin arch: convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}x Blackfin arch: bf51x processors also have 8 timers Blackfin arch: add a check to make sure only Blackfin GPIOs may generate IRQs Blackfin arch: update default kernel configuration Blackfin arch: include linux headers that this one uses definitions from fro sport drivers
2009-03-28Merge branch 'percpu-cpumask-x86-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds354-17051/+12916
* 'percpu-cpumask-x86-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (682 commits) percpu: fix spurious alignment WARN in legacy SMP percpu allocator percpu: generalize embedding first chunk setup helper percpu: more flexibility for @dyn_size of pcpu_setup_first_chunk() percpu: make x86 addr <-> pcpu ptr conversion macros generic linker script: define __per_cpu_load on all SMP capable archs x86: UV: remove uv_flush_tlb_others() WARN_ON percpu: finer grained locking to break deadlock and allow atomic free percpu: move fully free chunk reclamation into a work percpu: move chunk area map extension out of area allocation percpu: replace pcpu_realloc() with pcpu_mem_alloc() and pcpu_mem_free() x86, percpu: setup reserved percpu area for x86_64 percpu, module: implement reserved allocation and use it for module percpu variables percpu: add an indirection ptr for chunk page map access x86: make embedding percpu allocator return excessive free space percpu: use negative for auto for pcpu_setup_first_chunk() arguments percpu: improve first chunk initial area map handling percpu: cosmetic renames in pcpu_setup_first_chunk() percpu: clean up percpu constants x86: un-__init fill_pud/pmd/pte x86: remove vestigial fix_ioremap prototypes ... Manually merge conflicts in arch/ia64/kernel/irq_ia64.c
2009-03-28i2c-algo-pca: Rework waiting for a free busWolfram Sang1-1/+1
Waiting for a free bus now accepts the timeout value in jiffies and does proper checking using time_before. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-03-28Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds1-10/+15
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix kstat_this_cpu build breakage
2009-03-28Merge branch 'master' into develRussell King4-2/+15
Conflicts: arch/arm/include/asm/elf.h arch/arm/kernel/module.c
2009-03-28Merge branch 'origin' into develRussell King390-4915/+19662
Conflicts: sound/soc/pxa/pxa2xx-i2s.c
2009-03-28[ARM] 5435/1: fix compile warning in sanity_check_meminfo()Mikael Pettersson1-1/+1
Compiling recent 2.6.29-rc kernels for ARM gives me the following warning: arch/arm/mm/mmu.c: In function 'sanity_check_meminfo': arch/arm/mm/mmu.c:697: warning: comparison between pointer and integer This is because commit 3fd9825c42c784a59b3b90bdf073f49d4bb42a8d "[ARM] 5402/1: fix a case of wrap-around in sanity_check_meminfo()" in 2.6.29-rc5-git4 added a comparison of a pointer with PAGE_OFFSET, which is an integer. Fixed by casting PAGE_OFFSET to void *. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-28[ARM] 5434/1: ARM: OMAP: Fix mailbox compile for 24xxTony Lindgren1-1/+1
OMAP34XX_MAILBOX_BASE must be defined both for 24xx and 34xx. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-29Blackfin arch: be less noisy when gets a gpio conflict after kernel has bootedRobin Getz1-8/+16
Once the kernel has booted - be less noisy when someone does a modprobe (and gets a gpio conflict). Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-29Blackfin arch: add RSI's definitions to bf514 and bf516Cliff Cai4-0/+404
Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-29Blackfin arch: add link-time asserts to make sure on-chip regions dont overflowMike Frysinger1-0/+4
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: sport spi needs 6 gpio pinsCliff Cai1-1/+1
Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: add sport-spi related resource stuff to board fileCliff Cai1-0/+70
Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: Blacklist Hibernate (PM_SUSPEND_MEM) on BF561 as wellMichael Hennerich1-1/+1
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into develRussell King7-69/+39
2009-03-28Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into develRussell King3-3/+5
2009-03-28Blackfin arch: Privide BF537-STAMP platform data of ADP5520 Multifunction driverMichael Hennerich1-0/+142
ADP5520 Multifunction LCD Backlight and Keypad Input Device Driver Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: enable the platfrom PATA driver with CF CardsMichael Hennerich1-1/+22
Provide option to use the platfrom PATA driver with CF Cards on the CF-IDE-NAND Add-On-Card in Common Memory Mode Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: clean up sports header fileMike Frysinger1-1/+1
Remove redundancy of the name err_irq Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}xMike Frysinger6-36/+30
convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}x as the defines are redundant in these cases Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: bf51x processors also have 8 timersMike Frysinger1-2/+2
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: add a check to make sure only Blackfin GPIOs may generate IRQsMichael Hennerich1-1/+4
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: update default kernel configurationSonic Zhang21-487/+501
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28[ARM] pxa: fix Colibri PXA300 and PXA320 LCD backlight pinsDaniel Mack2-2/+2
Reported-by: Matthias Meier <matthias.j.meier@gmx.net> Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-28Blackfin arch: include linux headers that this one uses definitions from fro sport driversMike Frysinger1-0/+7
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Merge branch 'linus' into percpu-cpumask-x86-for-linus-2Ingo Molnar19-101/+34
Conflicts: arch/sparc/kernel/time_64.c drivers/gpu/drm/drm_proc.c Manual merge to resolve build warning due to phys_addr_t type change on x86: drivers/gpu/drm/drm_info.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2-21/+20
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (166 commits) Revert "ax25: zero length frame filtering in AX25" Revert "netrom: zero length frame filtering in NetRom" cfg80211: default CONFIG_WIRELESS_OLD_REGULATORY to n mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi mac80211: fix aggregation to not require queue stop mac80211: add skb length sanity checking mac80211: unify and fix TX aggregation start mac80211: clean up __ieee80211_tx args mac80211: rework the pending packets code mac80211: fix A-MPDU queue assignment mac80211: rewrite fragmentation iwlwifi: show current driver status in user readable format b43: Add BCM4307 PCI-ID cfg80211: fix locking in nl80211_set_wiphy mac80211: fix RX path ath5k: properly drop packets from ops->tx ar9170: single module build ath9k: fix dma mapping leak of rx buffer upon rmmod rt2x00: New USB ID for rt73usb ath5k: warn and correct rate for unknown hw rate indexes ...
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