21 Sep, 2011
1 commit
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The GPIO clock is required for register access and interrupt detection.
When interrupt detection is not required on any of the pin in a block,
the block's clock can be disabled when the registers are not being
accessed.Signed-off-by: Rabin Vincent
Reviewed-by: Rickard Andersson
Reviewed-by: Jonas Aberg
[Adjust for new IRQ chip core code, use only local functions]
Signed-off-by: Linus Walleij
Signed-off-by: Grant Likely
13 Sep, 2011
2 commits
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* 'fixes' of git://git.linaro.org/people/arnd/arm-soc:
ARM: CSR: add missing sentinels to of_device_id tables
ARM: cns3xxx: Fix newly introduced warnings in the PCIe code
ARM: cns3xxx: Fix compile error caused by hardware.h removed
ARM: davinci: fix cache flush build error
ARM: davinci: correct MDSTAT_STATE_MASK
ARM: davinci: da850 EVM: read mac address from SPI flash
OMAP: omap_device: fix !CONFIG_SUSPEND case in _noirq handlers
OMAP2430: hwmod: musb: add missing terminator to omap2430_usbhsotg_addrs[]
OMAP3: clock: indicate that gpt12_fck and wdt1_fck are in the WKUP clockdomain
OMAP4: clock: fix compile warning
OMAP4: clock: re-enable previous clockdomain enable/disable sequence
OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup
OMAP: powerdomains: Make all powerdomain target states as ON at init
12 Sep, 2011
2 commits
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* 'for-linus' of git://openrisc.net/~jonas/linux:
Add missing DMA ops
openrisc: don't use pt_regs in struct sigcontext
11 Sep, 2011
5 commits
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For the initial architecture submission, not all of the DMA ops were
implemented. This patch adds the *map_page and *map_sg variants of the
DMA mapping ops.This patch is currently of interest mainly to some drivers that haven't
been submitted upstream yet.Signed-off-by: Jonas Bonn
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The of_device_id tables used for matching should be terminated with
empty sentinel values.Signed-off-by: Jamie Iles
Signed-off-by: Barry Song -
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort
ARM: 7080/1: l2x0: make sure I&D are not locked down on init
ARM: 7081/1: mach-integrator: fix the clocksource
NET: am79c961: fix race in link status code
ARM: 7067/1: mm: keep significant bits in pfn_valid -
Commit be020f8618ca, "ARM: entry: abort-macro: specify registers to be
used for macros", while replacing register numbers with macro parameter
names, mismatched the name used for r1. For me, this resulted in user
space built for EABI with -march=armv4t -mtune=arm920t -mthumb-interwork
-mthumb broken on my OMAP1510 based Amstrad Delta (old ABI and no thumb
still worked for me though).Fix this by using correct parameter name fsr instead of mismatched psr,
used by callers for another purpose.Signed-off-by: Janusz Krzysztofik
Signed-off-by: Russell King
10 Sep, 2011
3 commits
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Commit b03e7495a862 ("PCI: Set PCI-E Max Payload Size on fabric")
introduced a potential NULL pointer dereference in calls to
pcie_bus_configure_settings due to attempts to access pci_bus self
variables when the self pointer is NULL.To correct this, verify that the self pointer in pci_bus is non-NULL
before dereferencing it.Reported-by: Stanislaw Gruszka
Signed-off-by: Shyam Iyer
Signed-off-by: Jon Mason
Acked-by: Jesse Barnes
Signed-off-by: Linus Torvalds -
commit d5341942d784134f2997b3ff82cd63cf71d1f932 ("PCI: Make the struct
pci_dev * argument of pci_fixup_irqs const") did not change argument
of pdev_to_cnspci(), and thus introduced the following warnings:CHECK arch/arm/mach-cns3xxx/pcie.c
pcie.c:177:60: warning: incorrect type in argument 1 (different modifiers)
pcie.c:177:60: expected struct pci_dev *dev
pcie.c:177:60: got struct pci_dev const *dev
CC arch/arm/mach-cns3xxx/pcie.o
pcie.c: In function 'cns3xxx_pcie_map_irq':
pcie.c:177: warning: passing argument 1 of 'pdev_to_cnspci' discards qualifiers from pointer target type
pcie.c:52: note: expected 'struct pci_dev *' but argument is of type 'const struct pci_dev *'This patch fixes the issue.
Signed-off-by: Anton Vorontsov
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Commit c9d95fbe59e426eed7f16e7cac812e46ac4772d0 "ARM: convert PCI defines
to variables" deleted cns3xxx' hardware.h, but didn't remove references
for it, so do it now.This patch removes lines that refer to hardware.h.
Signed-off-by: Tommy Lin
Signed-off-by: Imre Kaloz
Signed-off-by: Anton Vorontsov
08 Sep, 2011
1 commit
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* 'perf-fixes-for-linus' of git://tesla.tglx.de/git/linux-2.6-tip:
x86, perf: Check that current->mm is alive before getting user callchain
perf_event: Fix broken calc_timer_values()
perf events: Fix slow and broken cgroup context switch code
07 Sep, 2011
8 commits
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* 'stable/bug.fixes' of git://oss.oracle.com/git/kwilk/xen:
xen/smp: Warn user why they keel over - nosmp or noapic and what to use instead.
xen: x86_32: do not enable iterrupts when returning from exception in interrupt context
xen: use maximum reservation to limit amount of usable RAM -
* 'kvm-updates/3.1' of git://github.com/avikivity/kvm:
KVM: Fix instruction size issue in pvclock scaling -
The TNET variant of DaVinci compiles some code that it shares
with other DaVinci variants, however it has a V6 CPU rather than
an ARM926T, thus the hardcoded call to arm926_flush_kern_cache_all()
in sleep.S will obviously fail, and we need to build with the
v6_flush_kern_cache_all() call instead. This was triggered by
manually altering the DaVinci config to build the TNET version.Cc: Dave Martin
Cc: Arnd Bergmann
Signed-off-by: Linus Walleij
Signed-off-by: Sekhar Nori
Cc: stable@kernel.org -
MDSTAT.STATE occupies bits 0..5 according to all available documentation, so fix
the #define MDSTAT_STATE_MASK at last. Using the wrong value seems to have been
harmless though...Signed-off-by: Sergei Shtylyov
Signed-off-by: Sekhar Nori -
DA850/OMAP-L138 EMAC driver uses random mac address instead of
a fixed one because the mac address is not stuffed into EMAC
platform data.This patch provides a function which reads the mac address
stored in SPI flash (registered as MTD device) and populates the
EMAC platform data. The function which reads the mac address is
registered as a callback which gets called upon addition of MTD
device.NOTE: In case the MAC address stored in SPI flash is erased, follow
the instructions at [1] to restore it.[1] http://processors.wiki.ti.com/index.php/GSG:_OMAP-L138_DVEVM_Additional_Procedures#Restoring_MAC_address_on_SPI_Flash
Modifications in v2:
Guarded registering the mtd_notifier only when MTD is enabled.
Earlier this was handled using mtd_has_partitions() call, but
this has been removed in Linux v3.0.Modifications in v3:
a. Guarded da850_evm_m25p80_notify_add() function and
da850evm_spi_notifier structure with CONFIG_MTD macros.
b. Renamed da850_evm_register_mtd_user() function to
da850_evm_setup_mac_addr() and removed the struct mtd_notifier
argument to this function.
c. Passed the da850evm_spi_notifier structure to register_mtd_user()
function.Modifications in v4:
Moved the da850_evm_setup_mac_addr() function within the first
CONFIG_MTD ifdef construct.Signed-off-by: Rajashekhara, Sudhakar
Signed-off-by: Sekhar Nori
Cc: stable@kernel.org -
Fighting unfixed U-Boots and other beasts that may the cache in
a locked-down state when starting the kernel, we make sure to
disable all cache lock-down when initializing the l2x0 so we
are in a known state.Cc: Srinidhi Kasagar
Cc: Rabin Vincent
Cc: Adrian Bunk
Cc: Rob Herring
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: Santosh Shilimkar
Reported-by: Jan Rinze
Tested-by: Robert Marklund
Signed-off-by: Linus Walleij
Signed-off-by: Russell King -
I was intrigued by the fact that the clock stood still on
the Integrator, but it wasn't strange at all, because the
timer was set up all wrong and probably has been for a
while. With this patch the clock starts ticking again:
make the timer periodic (reload), |= on the divisor bit
and load the timer before starting it.Cc: stable@kernel.org
Signed-off-by: Linus Walleij
Signed-off-by: Russell King -
The suspend/resume _noirq handlers were #ifdef'd out in the
!CONFIG_SUSPEND case, but were still assigned to the dev_pm_ops
struct. Fix by defining them to NULL in the !CONFIG_SUSPEND case.Reported-by: Arnd Bergmann
Acked-by: Arnd Bergmann
Signed-off-by: Kevin Hilman
05 Sep, 2011
3 commits
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As it was decided not to export struct pt_regs to userspace, struct
sigcontext shouldn't be using it either. The pt_regs struct for OpenRISC
is kernel internal and the layout of the registers may change in the
future. The struct user_regs_struct is what is guaranteed to remain
stable, so struct sigcontext may use that instead.This patch removes the usage of struct pt_regs in struct sigcontext and
makes according changes in signal.c to get the register layout right.The usp field is removed from the sigcontext structure as this information
is already contained in the user_regs_struct.Signed-off-by: Jonas Bonn
Reviewed-by: Emilio Cota -
…4_clock_fixes_3.1rc', 'missing_2430_musb_adds_terminator_fix_3.1rc' and 'pwrdm_clkdm_fixes_3.1rc' into prcm-fixes-a-3.1rc
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Add a missing array terminator to omap2430_usbhsotg_addrs[]. Without
this terminator, the omap_hwmod resource building code runs off the
end of the array, resulting in at least this error -- if not worse
behavior:[ 0.578002] musb-omap2430: failed to claim resource 4
[ 0.583465] omap_device: musb-omap2430: build failed (-16)
[ 0.589294] Could not build omap_device for musb-omap2430 usb_otg_hsThis should have been part of commit
78183f3fdf76f422431a81852468be01b36db325 ("omap_hwmod: use a null
structure record to terminate omap_hwmod_addr_space arrays") but was
evidently missed.Signed-off-by: Paul Walmsley
04 Sep, 2011
1 commit
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When ARCH_HAS_HOLES_MEMORYMODEL is selected, pfn_valid calls
memblock_is_memory to test validity of a pfn:> memblock_is_memory(pfn << PAGE_SHIFT);
On LPAE systems this cuts off the top bits, as the shift occurs before
the value is promoted to a phys_addr_t.This patch replaces the shift with a call to __pfn_to_phys (which casts
pfn to phys_addr_t before shifting), preventing the loss of significant
bits.Signed-off-by: Mark Rutland
Acked-by: Will Deacon
Signed-off-by: Russell King
02 Sep, 2011
2 commits
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We have hit a couple of customer bugs where they would like to
use those parameters to run an UP kernel - but both of those
options turn of important sources of interrupt information so
we end up not being able to boot. The correct way is to
pass in 'dom0_max_vcpus=1' on the Xen hypervisor line and
the kernel will patch itself to be a UP kernel.Fixes bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637308
CC: stable@kernel.org
Acked-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
If vmalloc page_fault happens inside of interrupt handler with interrupts
disabled then on exit path from exception handler when there is no pending
interrupts, the following code (arch/x86/xen/xen-asm_32.S:112):cmpw $0x0001, XEN_vcpu_info_pending(%eax)
sete XEN_vcpu_info_mask(%eax)will enable interrupts even if they has been previously disabled according to
eflags from the bounce frame (arch/x86/xen/xen-asm_32.S:99)testb $X86_EFLAGS_IF>>8, 8+1+ESP_OFFSET(%esp)
setz XEN_vcpu_info_mask(%eax)Solution is in setting XEN_vcpu_info_mask only when it should be set
according to
cmpw $0x0001, XEN_vcpu_info_pending(%eax)
but not clearing it if there isn't any pending events.Reproducer for bug is attached to RHBZ 707552
CC: stable@kernel.org
Signed-off-by: Igor Mammedov
Acked-by: Jeremy Fitzhardinge
Signed-off-by: Konrad Rzeszutek Wilk
01 Sep, 2011
1 commit
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Use the domain's maximum reservation to limit the amount of extra RAM
for the memory balloon. This reduces the size of the pages tables and
the amount of reserved low memory (which defaults to about 1/32 of the
total RAM).On a system with 8 GiB of RAM with the domain limited to 1 GiB the
kernel reports:Before:
Memory: 627792k/4472000k available
After:
Memory: 549740k/11132224k available
A increase of about 76 MiB (~1.5% of the unused 7 GiB). The reserved
low memory is also reduced from 253 MiB to 32 MiB. The total
additional usable RAM is 329 MiB.For dom0, this requires at patch to Xen ('x86: use 'dom0_mem' to limit
the number of pages for dom0') (c/s 23790)CC: stable@kernel.org
Signed-off-by: David Vrabel
Signed-off-by: Konrad Rzeszutek Wilk
31 Aug, 2011
6 commits
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* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/p1023rds: Fix the error of bank-width of nor flash
powerpc/85xx: enable caam crypto driver by default
powerpc/85xx: enable the audio drivers in the defconfigs -
An event may occur when an mm is already released.
I added an event in dequeue_entity() and caught a panic with
the following backtrace:[ 434.421110] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
[ 434.421258] IP: [] __get_user_pages_fast+0x9c/0x120
...
[ 434.421258] Call Trace:
[ 434.421258] [] copy_from_user_nmi+0x51/0xf0
[ 434.421258] [] ? sched_clock_local+0x25/0x90
[ 434.421258] [] perf_callchain_user+0x128/0x170
[ 434.421258] [] ? __perf_event_header__init_id+0xed/0x100
[ 434.421258] [] perf_prepare_sample+0x200/0x280
[ 434.421258] [] __perf_event_overflow+0x1b8/0x290
[ 434.421258] [] ? tg_shares_up+0x0/0x670
[ 434.421258] [] ? walk_tg_tree+0x6a/0xb0
[ 434.421258] [] perf_swevent_overflow+0xc4/0xf0
[ 434.421258] [] do_perf_sw_event+0x1e0/0x250
[ 434.421258] [] perf_tp_event+0x44/0x70
[ 434.421258] [] ftrace_profile_sched_block+0xdf/0x110
[ 434.421258] [] dequeue_entity+0x2ad/0x2d0
[ 434.421258] [] dequeue_task_fair+0x1c/0x60
[ 434.421258] [] dequeue_task+0x9a/0xb0
[ 434.421258] [] deactivate_task+0x42/0xe0
[ 434.421258] [] thread_return+0x191/0x808
[ 434.421258] [] ? switch_task_namespaces+0x24/0x60
[ 434.421258] [] do_exit+0x464/0x910
[ 434.421258] [] do_group_exit+0x58/0xd0
[ 434.421258] [] sys_exit_group+0x17/0x20
[ 434.421258] [] system_call_fastpath+0x16/0x1bSigned-off-by: Andrey Vagin
Signed-off-by: Peter Zijlstra
Cc: stable@kernel.org
Link: http://lkml.kernel.org/r/1314693156-24131-1-git-send-email-avagin@openvz.org
Signed-off-by: Ingo Molnar -
In the p1023rds, a physical bus of nor flash is 16 bits width.
The bank-width is width (in bytes) of the bus width. So, the
value of bank-width of nor flash is not one, and it should be
two.Signed-off-by: Chunhe Lan
Signed-off-by: Kumar Gala -
corenet based SoCs have SEC4 h/w, so enable the SEC4 driver,
caam, and the algorithms it supports, and disable the
SEC2/3 driver, talitos.Signed-off-by: Kim Phillips
Signed-off-by: Kumar Gala -
Enable the audio drivers in the non-corenet 85xx defconfigs so that audio
is enabled on the Freescale P1022DS reference board.Signed-off-by: Timur Tabi
Signed-off-by: Kumar Gala -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Only Panther cheetah+ chips have POPC.
30 Aug, 2011
5 commits
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Commit de2d1a524e94 ("KVM: Fix register corruption in pvclock_scale_delta")
introduced a mul instruction that may have only a memory operand; the
assembler therefore cannot select the correct size:pvclock.s:229: Error: no instruction mnemonic suffix given and no register
operands; can't size instructionIn this example the assembler is:
#APP
mul -48(%rbp) ; shrd $32, %rdx, %rax
#NO_APPA simple solution is to use mulq.
Signed-off-by: Duncan Sands
Signed-off-by: Avi Kivity -
Signed-off-by: David S. Miller
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* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: pm: avoid writing the auxillary control register for ARMv7
ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
ARM: pm: arm920/926: fix number of registers saved
ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
ARM: 7003/1: vexpress: Add clock definition for the SP805.
ARM: 7051/1: cpuimx* boards: fix mach-types errors
ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER
ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled
ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation.
ARM: 6967/1: ep93xx: ts72xx: fix board model detection
ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards
ARM: cache: detect VIPT aliasing I-cache on ARMv6
ARM: twd: register clockevents device before enabling PPI
ARM: realview: ensure visibility of writes during reset
ARM: perf: make name of arm_pmu_type consistent
ARM: perf: fix prototype of release_pmu
ARM: fix perf build with uclibc toolchains -
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
ARM: mach-footbridge: add missing header file
ARM: mach-orion5x: add missing header file
arm: fix compile failure in orion5x/dns323-setup.c
at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0
ARM: S5P: fix bug in spdif_clk_get_rate
ARM: EXYNOS4: Add restart hook for proper reboot
ARM: EXYNOS4: Increase reset delay for USB HOST PHY
ARM: S5P: add required chained_irq_enter/exit to gpio-int code
ARM: EXYNOS4: add required chained_irq_enter/exit to eint code
ARM: SAMSUNG: Add chained enrty/exit call to timer interrupt handler
ARM: S3C64XX: Fix build break in PM debug
ARM: S5PV210: Fix build warning
ARM: EXYNOS4: Fix the IRQ definitions for MIPI CSIS device
ARM: EXYNOS4: remove duplicated inclusion
ARM: EXYNOS4: Fix wrong devname to support clkdev
ARM: EXYNOS4: Use the correct regulator names on universal_c210
ARM: SAMSUNG: Fix Section mismatch in samsung_bl_set()
ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit() -
These were missed in commit f5b940997397 "All Arch: remove linkage
for sys_nfsservctl system call" due to them having no sys_ prefix
(presumably).Cc: NeilBrown
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Stephen Rothwell
Acked-by: James Bottomley
Signed-off-by: Linus Torvalds
