Olof Johansson [Sat, 8 Jun 2013 01:20:26 +0000 (18:20 -0700)]
Merge branch 'fixes' into for-next
* fixes:
ARM: exynos: add debug_ll_io_init() call in exynos_init_io()
ARM: EXYNOS: uncompress - print debug messages if DEBUG_LL is defined
ARM: shmobile: sh73a0: Update CMT clockevent rating to 80
sh-pfc: r8a7779: Don't group USB OVC and PENC pins
ARM: mxs: icoll: Fix interrupts gpio bank 0
ARM: imx: clk-imx6q: AXI clock select index is incorrect
ARM: dts: imx: fix clocks for cspi
ARM i.MX6q: fix for ldb_di_sels
Olof Johansson [Sat, 8 Jun 2013 01:19:30 +0000 (18:19 -0700)]
Merge tag 'mxs-fixes-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo, mxs fixes for 3.10:
- Since the time we move to MULTI_IRQ_HANDLER, the 0x7f polling for no
interrupt in icoll_handle_irq() becomes insane, because 0x7f is an
valid interrupt number, the irq of gpio bank 0. That unnecessary
polling results in the driver not detecting when irq 0x7f is active
which makes the machine effectively dead lock. The fix removes the
interrupt poll loop and allows usage of gpio0 interrupt without an
infinite loop.
* tag 'mxs-fixes-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mxs: icoll: Fix interrupts gpio bank 0
Olof Johansson [Sat, 8 Jun 2013 01:18:08 +0000 (18:18 -0700)]
Merge tag 'imx-fixes-3.10-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo, imx fixes for 3.10, take 2:
- One device tree fix for all spi node to have per clock added.
The clock is needed by spi driver to calculate bit rate divisor.
The spi node in the current device trees either does not have the
clock or is defined as dummy clock, in which case the driver probe
will fail or spi will run at a wrong bit rate.
- Two imx6q clock fixes, which correct axi_sels and ldb_di_sels.
* tag 'imx-fixes-3.10-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: imx: clk-imx6q: AXI clock select index is incorrect
ARM: dts: imx: fix clocks for cspi
ARM i.MX6q: fix for ldb_di_sels
Doug Anderson [Wed, 5 Jun 2013 20:56:33 +0000 (13:56 -0700)]
ARM: exynos: add debug_ll_io_init() call in exynos_init_io()
If the early MMU mapping of the UART happens to get booted out of the
TLB between the start of paging_init() and when we finally re-add the
UART at the very end of s3c_init_cpu(), we'll get a hang at bootup if
we've got early_printk enabled. Avoid this hang by calling
debug_ll_io_init() early.
Without this patch, you can reliably reproduce a hang when early
printk is enabled by adding flush_tlb_all() at the start of
exynos_init_io(). After this patch the hang goes away.
Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sat, 8 Jun 2013 01:10:42 +0000 (18:10 -0700)]
Merge tag 'renesas-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
From Simon Horman, Renesas ARM based SoC fixes for v3.10:
- Correction to USB OVC and PENC pin groupings on r8a7779 SoC.
This avoids conflicts when the USB_OVCn pins are used by another function.
This has been observed to be a problem in v3.10-rc1.
- Update CMT clock rating for sh73a0 SoC to resolve boot failure
on kzm9g-reference. This resolves a regression between v3.9 and v3.10-rc1.
* tag 'renesas-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: sh73a0: Update CMT clockevent rating to 80
sh-pfc: r8a7779: Don't group USB OVC and PENC pins
Tushar Behera [Tue, 4 Jun 2013 04:19:10 +0000 (09:49 +0530)]
ARM: EXYNOS: uncompress - print debug messages if DEBUG_LL is defined
Printing low-level debug messages make an assumption that the specified
UART port has been preconfigured by the bootloader. Incorrectly
specified UART port results in system getting stalled while printing the
message "Uncompressing Linux... done, booting the kernel"
This UART port number is specified through S3C_LOWLEVEL_UART_PORT. Since
the UART port might different for different board, it is not possible to
specify it correctly for every board that use a common defconfig file.
Calling this print subroutine only when DEBUG_LL fixes the problem. By
disabling DEBUG_LL in default config file, we would be able to boot
multiple boards with different default UART ports.
With this current approach, we miss the print "Uncompressing Linux...
done, booting the kernel." when DEBUG_LL is not defined.
Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sat, 8 Jun 2013 00:51:39 +0000 (17:51 -0700)]
Merge tag 'vt8500/dts-3.11' of git://github.com/linux-wmt/linux-vtwm into next/dt
From Tony Prisk, vt8500 devicetree updates for 3.11.
* tag 'vt8500/dts-3.11' of git://github.com/linux-wmt/linux-vtwm:
dts: vt8500: Correct reference clock on WM8850 SoCs
dts: vt8500: Add ARM, AHB, APB and DDR clock nodes to SoC files
dts: vt8500: Populate missing PLL nodes
dts: clk: vt8500: Update SoC dtsi to use WM8850 PLL clocks
dts: vt8500: Update serial nodes and disable by default in SoC files
dts: vt8500: Add devicetree support for WM8750 SoC and APC8750 board
dts: vt8500: Fix invalid/missing cpu nodes for soc files.
Simon Horman [Wed, 22 May 2013 10:47:05 +0000 (19:47 +0900)]
ARM: shmobile: sh73a0: Update CMT clockevent rating to 80
Update the CMT clockevent rating from 125 to 80.
This resolves a boot-failure regression for kzm9g-reference in v3.10-rc1
introduced by f7db706b132f11c79ae1d74b2382e0926cf31644 ("ARM: 7674/1: smp:
Avoid dummy clockevent being preferred over real").
The patch noted above reduces the rating of dummy clockevent from 400 to 100.
This patch reduces the rating of CMT so that it is once again less than that
of the dummy clockevent.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Laurent Pinchart [Tue, 21 May 2013 10:39:31 +0000 (12:39 +0200)]
sh-pfc: r8a7779: Don't group USB OVC and PENC pins
The USB_OVCn pins are alternate options for USB over-current detection
when using a 3.3V USB interface. As they're not mandatory they can be
used independently of the USB PENC pins. Don't group the USB_OVCn and
PENC pins to avoid conflicts when the USB_OVCn pins are used by another
function.
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Markus Pargmann [Tue, 28 May 2013 15:00:57 +0000 (17:00 +0200)]
ARM: mxs: icoll: Fix interrupts gpio bank 0
The mxs interrupt controller does not support polling for interrupts,
but the driver still does it, which is a relict from
pre-MULTI_IRQ_HANDLER times.
The existing code assumes that 0x7f means no interrupt, but this value
is an actually valid irq number, namely gpio bank 0's irq. This results
in the driver not detecting when irq 0x7f is active which makes the
machine effectively dead lock.
This patch removes the interrupt poll loop and allows usage of gpio0
interrupt without an infinite loop.
Arnd Bergmann [Mon, 3 Jun 2013 13:15:36 +0000 (15:15 +0200)]
drivers/bus: arm-cci: fix combined ARMv6+v7 build
When we build a kernel with support for both ARMv6 and ARMv7,
gas is trying to be helpful by pointing out that the arm-cci
driver would not work on ARMv6:
/tmp/ccu1LDeU.s: Assembler messages:
/tmp/ccu1LDeU.s:450: Error: selected processor does not support ARM mode `wfi '
/tmp/ccu1LDeU.s:451: Error: selected processor does not support ARM mode `wfe '
make[4]: *** [drivers/bus/arm-cci.o] Error 1
We know that the driver will only be used on ARMv7, hence we
can annotate the inline assembly listing to allow those instructions.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Cc: Dave Martin <dave.martin@linaro.org>
Olof Johansson [Sun, 2 Jun 2013 18:59:49 +0000 (11:59 -0700)]
Merge branch 'fixes' into for-next
* fixes: (168 commits)
ARM: bcm2835: override the HW UART periphid
Linux 3.10-rc4
parisc: parport0: fix this legacy no-device port driver!
parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture
parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2)
parisc/PCI: Set type for LBA bus_num resource
MAINTAINERS: update parisc architecture file list
parisc: kernel: using strlcpy() instead of strcpy()
parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
parisc: memory overflow, 'name' length is too short for using
powerpc/cputable: Fix typo on P7+ cputable entry
powerpc/perf: Add missing SIER support
powerpc/perf: Revert to original NO_SIPR logic
powerpc/pci: Remove the unused variables in pci_process_bridge_OF_ranges
powerpc/pci: Remove the stale comments of pci_process_bridge_OF_ranges
powerpc/pseries: Always enable CONFIG_HOTPLUG_CPU on PSERIES SMP
powerpc/kvm/book3s: Add support for H_IPOLL and H_XIRR_X in XICS emulation
powerpc/32bit:Store temporary result in r0 instead of r8
powerpc/mm: Always invalidate tlb on hpte invalidate and update
...
Olof Johansson [Sun, 2 Jun 2013 18:50:49 +0000 (11:50 -0700)]
Merge tag 'ux500-arm-soc-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes
From Linus Walleij, ux500 fixes for v3.10:
- A multiplatform fix making sure ux500_idle_init() is only executed on ux500.
- A regulator fix making sure the MMC/SD card regulator is not disabled on boot.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'ux500-arm-soc-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: Provide supplies for AUX1, AUX2 and AUX3
ARM: ux500: Only configure wake-up reasons on ux500 based platforms
Jongsung Kim [Thu, 30 May 2013 04:07:39 +0000 (22:07 -0600)]
ARM: bcm2835: override the HW UART periphid
Stephen Warren reported the recent commit 78506f2 (add support for
extended FIFO-size of PL011-r1p5) breaks the serial port on the
BCM2835 ARM SoC.
A UART compatible with the ARM PL011-r1p5 should have 32-deep FIFOs.
The BCM2835 UART just looks like an ARM PL011-r1p5, but has 16-deep
FIFOs just like PL011-r1p4 or earlier revisions. As a workaround for
this compatibility issue, this patch overrides the HW UART periphid
register values with the actually compatible UART periphid 0x00241011
(r1p3 or r1p4).
Reported-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Jongsung Kim <neidhard.kim@lge.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sat, 1 Jun 2013 05:20:10 +0000 (22:20 -0700)]
Merge tag 'fixes-3.10-3' of git://git.infradead.org/users/jcooper/linux into fixes
From Jason Cooper, mvebu fixes for v3.10 round 3:
- mvebu
- fix bug in coherency fabric low level init
- kirkwood
- fix crash from pcie double init
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'fixes-3.10-3' of git://git.infradead.org/users/jcooper/linux:
ARM: mvebu: Fix bug in coherency fabric low level init function
ARM: Kirkwood: TS219: Fix crash by double PCIe instantiation
Linus Torvalds [Sat, 1 Jun 2013 21:24:54 +0000 (06:24 +0900)]
Merge branch 'for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"This patcheset includes fixes for:
- the PCI/LBA which brings back the stifb graphics framebuffer
console
- possible memory overflows in parisc kernel init code
- parport support on older GSC machines
- avoids that users by mistake enable PARPORT_PC_SUPERIO on parisc
- MAINTAINERS file list updates for parisc."
* 'for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: parport0: fix this legacy no-device port driver!
parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture
parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2)
parisc/PCI: Set type for LBA bus_num resource
MAINTAINERS: update parisc architecture file list
parisc: kernel: using strlcpy() instead of strcpy()
parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
parisc: memory overflow, 'name' length is too short for using
Helge Deller [Thu, 30 May 2013 21:06:39 +0000 (21:06 +0000)]
parisc: parport0: fix this legacy no-device port driver!
Fix the above kernel error from parport_announce_port() on 32bit GSC
machines (e.g. B160L). The parport driver requires now a pointer to the
device struct.
Helge Deller [Thu, 30 May 2013 16:24:46 +0000 (16:24 +0000)]
parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture
If enabled, CONFIG_PARPORT_PC_SUPERIO scans on PC-like hardware for
various super-io chips by accessing i/o ports in a range which will
crash any parisc hardware at once.
In addition, parisc has it's own incompatible superio chip
(CONFIG_SUPERIO), so if we disable PARPORT_PC_SUPERIO completely for
parisc we can avoid that people by accident enable the parport_pc
superio option too.
Helge Deller [Fri, 31 May 2013 22:24:58 +0000 (22:24 +0000)]
parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2)
commit dc7dce280a
Author: Bjorn Helgaas <bhelgaas@google.com>
Date: Fri Oct 28 16:27:27 2011 -0600
parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
resources
Supply root bus resources to pci_create_root_bus() so they're correct
immediately. This fixes the problem of "early" and "header" quirks seeing
incorrect root bus resources.
added tests for elmmio_space.start while it should use
elmmio_space.flags. This for example led to incorrect resource
assignments and a non-working stifb framebuffer on most parisc machines.
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io 0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]
Bjorn Helgaas [Thu, 30 May 2013 17:45:39 +0000 (11:45 -0600)]
parisc/PCI: Set type for LBA bus_num resource
The non-PAT resource probing code failed to set the type of the LBA bus_num
resource (30aa80da43 "parisc/PCI: register busn_res for root buses" did
the corresponding thing for the PAT case).
This causes incorrect resource assignments and a non-working stifb
framebuffer on most parisc machines.
Paul Bolle [Wed, 29 May 2013 09:56:58 +0000 (09:56 +0000)]
parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
There's a Makefile line setting cflags for CONFIG_PA7100. But that
Kconfig macro doesn't exist. There is a Kconfig symbol PA7000, which
covers both PA7000 and PA7100 processors. So let's use the corresponding
Kconfig macro.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Helge Deller <deller@gmx.de>
Helge Deller [Tue, 28 May 2013 20:35:54 +0000 (20:35 +0000)]
parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
With CONFIG_DISCONTIGMEM=y and multiple physical memory areas,
cat /proc/kpageflags triggers this kernel bug:
kernel BUG at arch/parisc/include/asm/mmzone.h:50!
CPU: 2 PID: 7848 Comm: cat Tainted: G D W 3.10.0-rc3-64bit #44
IAOQ[0]: kpageflags_read0x128/0x238
IAOQ[1]: kpageflags_read0x12c/0x238
RP(r2): proc_reg_read0xbc/0x130
Backtrace:
[<00000000402ca2d4>] proc_reg_read0xbc/0x130
[<0000000040235bcc>] vfs_read0xc4/0x1d0
[<0000000040235f0c>] SyS_read0x94/0xf0
[<0000000040105fc0>] syscall_exit0x0/0x14
kpageflags_read() walks through the whole memory, even if some memory
areas are physically not available. So, we should better not BUG on an
unavailable pfn in pfn_to_nid() but just return the expected value -1 or
0.
Linus Torvalds [Sat, 1 Jun 2013 11:13:16 +0000 (20:13 +0900)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
"Here are a few more fixes for powerpc 3.10. It's a bit more than I
would have liked this late in the game but I suppose that's what
happens with a brand new chip generation coming out.
A few regression fixes, some last minute fixes for new P8 features
such as transactional memory,...
There's also one powerpc KVM patch that I requested that adds two
missing functions to our in-kernel interrupt controller support which
is itself a new 3.10 feature. These are defined by the base
hypervisor specification. We didn't implement them originally because
Linux doesn't use them but they are simple and I'm not comfortable
having a half-implemented interface in 3.10 and having to deal with
versionning etc... later when something starts needing those calls.
They cannot be emulated in qemu when using in-kernel interrupt
controller (not enough shared state).
Just added a last minute patch to fix a typo introducing a breakage in
our cputable for Power7+ processors, sorry about that, but the
regression it fixes just hurt me :-)"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/cputable: Fix typo on P7+ cputable entry
powerpc/perf: Add missing SIER support
powerpc/perf: Revert to original NO_SIPR logic
powerpc/pci: Remove the unused variables in pci_process_bridge_OF_ranges
powerpc/pci: Remove the stale comments of pci_process_bridge_OF_ranges
powerpc/pseries: Always enable CONFIG_HOTPLUG_CPU on PSERIES SMP
powerpc/kvm/book3s: Add support for H_IPOLL and H_XIRR_X in XICS emulation
powerpc/32bit:Store temporary result in r0 instead of r8
powerpc/mm: Always invalidate tlb on hpte invalidate and update
powerpc/pseries: Improve stream generation comments in copypage/user
powerpc/pseries: Kill all prefetch streams on context switch
powerpc/cputable: Fix oprofile_cpu_type on power8
powerpc/mpic: Fix irq distribution problem when MPIC_SINGLE_DEST_CPU
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
powerpc/tm: Move TM abort cause codes to uapi
powerpc/tm: Abort on emulation and alignment faults
powerpc/tm: Update cause codes documentation
powerpc/tm: Make room for hypervisor in abort cause codes
Pull scsi target fixes from Nicholas Bellinger:
"The highlights include:
- Re-instate sess->wait_list in target_wait_for_sess_cmds() for
active I/O shutdown handling in fabrics using se_cmd->cmd_kref
- Make ib_srpt call target_sess_cmd_list_set_waiting() during session
shutdown
- Fix FILEIO off-by-one READ_CAPACITY bug for !S_ISBLK export
- Fix iscsi-target login error heap buffer overflow (Kees)
- Fix iscsi-target active I/O shutdown handling regression in
v3.10-rc1
A big thanks to Kees Cook for fixing a long standing login error
buffer overflow bug.
All patches are CC'ed to stable with the exception of the v3.10-rc1
specific regression + other minor target cleanup."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: Fix iscsit_free_cmd() se_cmd->cmd_kref shutdown handling
target: Propigate up ->cmd_kref put return via transport_generic_free_cmd
iscsi-target: fix heap buffer overflow on error
target/file: Fix off-by-one READ_CAPACITY bug for !S_ISBLK export
ib_srpt: Call target_sess_cmd_list_set_waiting during shutdown_session
target: Re-instate sess_wait_list for target_wait_for_sess_cmds
target: Remove unused wait_for_tasks bit in target_wait_for_sess_cmds
Linus Torvalds [Sat, 1 Jun 2013 10:55:26 +0000 (19:55 +0900)]
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Pull clock subsystem fixes from Mike Turquette:
"A mix of small fixes affecting mostly ARM platforms as well as a
discrete clock expander chip. Most fixes are corrections to lousy
clock data of one form or another."
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
clk: mxs: Include clk mxs header file
clk: vt8500: Fix unbalanced spinlock in vt8500_dclk_set_rate()
clk: si5351: Set initial clkout rate when defined in platform data.
clk: si5351: Fix clkout rate computation.
clk: samsung: Add CLK_IGNORE_UNUSED flag for the sysreg clocks
clk: ux500: clk-sysctrl: handle clocks with no parents
clk: ux500: Provide device enumeration number suffix for SMSC911x
Linus Torvalds [Sat, 1 Jun 2013 10:51:52 +0000 (19:51 +0900)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull assorted fixes from Al Viro:
"There'll be more - I'm trying to dig out from under the pile of mail
(a couple of weeks of something flu-like ;-/) and there's several more
things waiting for review; this is just the obvious stuff."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
zoran: racy refcount handling in vm_ops ->open()/->close()
befs_readdir(): do not increment ->f_pos if filldir tells us to stop
hpfs: deadlock and race in directory lseek()
qnx6: qnx6_readdir() has a braino in pos calculation
fix buffer leak after "scsi: saner replacements for ->proc_info()"
vfs: Fix invalid ida_remove() call
Linus Torvalds [Sat, 1 Jun 2013 10:48:59 +0000 (19:48 +0900)]
Merge tag 'nfs-for-3.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull two NFS client fixes from Trond Myklebust:
- Fix a regression that broke NFS mounting using klibc and busybox
- Stable fix to check access modes correctly on NFSv4 delegated open()
* tag 'nfs-for-3.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix security flavor negotiation with legacy binary mounts
NFSv4: Fix a thinko in nfs4_try_open_cached
Olof Johansson [Sat, 1 Jun 2013 07:38:04 +0000 (00:38 -0700)]
Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dt
From Nicolas Ferre:
Big DT-centric update for AT91:
- Calao boards update, removal of one board C file and
associated defconfig, Kconfig Makefile lines
- several Acme boards updates
- addition of watchdog, uart and pinctrl descriptions for
several products
- modification of RTC compatible string for 9x5 family
* tag 'at91-dt' of git://github.com/at91linux/linux-at91: (21 commits)
ARM: at91/dt: add pinctrl definition for at91 tc blocks
ARM: at91/dts: add the watchdog nodes for at91 boards
ARM: at91/dtsi: add the watchdog nodes for at91 SoC
ARM: at91: drop non DT: Calao USB-A96x
ARM: at91: dt: add Calao USB-A9G20 low power version
ARM: at91: dt: usb-a9263: add dataflash support
ARM: at91: dt: usb-a9263: update shutdown controller
ARM: at91: dt: usb-a9260: update shutdown controller
ARM: at91: dt: sam9260: add i2c gpio pinctrl
ARM: at91: switch Fox G20 board .dts to pre-processor defines
ARM: at91: add Acme Systems Fox G20 board
ARM: at91/at91-ariag25.dts: UART0/1 nodes are disabled
ARM: at91/at91sam9x5.dtsi: add UART0/1 nodes
ARM: at91/at91-ariag25.dts: add RTC node
ARM: at91: at91sam9x5 RTC is not compatible with at91rm9200 one
ARM: at91: udpate defconfigs
ARM: at91: dt: switch to standard IRQ flag defines
ARM: at91: dt: switch to pinctrl to pre-processor
ARM: at91: dt: add pinctrl pre-processor define
ARM: at91: dt: switch to standard GPIO flag defines.
...
Arnd Bergmann [Fri, 31 May 2013 15:49:28 +0000 (17:49 +0200)]
ARM: nomadik: fix clocksource warning
The clocksource API has changed slightly, which causes a harmless
warning:
/git/arm-soc/drivers/clocksource/nomadik-mtu.c:259:28: warning: 'nmdk_timer_match' defined but not used [-Wunused-variable]
static struct of_device_id nmdk_timer_match[] __initconst = {
^
Fortunately, the same API change also lets us simplify the code
while removing the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sat, 1 Jun 2013 06:41:41 +0000 (23:41 -0700)]
Merge branch 'next/soc' into for-next
* next/soc:
ARM: vexpress: Select multi-cluster SMP operation if required
ARM: vexpress/dcscb: handle platform coherency exit/setup and CCI
ARM: vexpress/dcscb: do not hardcode number of CPUs per cluster
ARM: vexpress/dcscb: add CPU use counts to the power up/down API implementation
ARM: vexpress: introduce DCSCB support
ARM: introduce common set_auxcr/get_auxcr functions
drivers/bus: arm-cci: function to enable CCI ports from early boot code
drivers: bus: add ARM CCI support
ARM: Enable selection of SMP operations at boot time
arm: introduce psci_smp_ops
ARM: ARMv7-M: implement read_cpuid_ext
ARM: ARMv7-M: Allow the building of new kernel port
ARM: ARMv7-M: Add support for exception handling
ARM: Add base support for ARMv7-M
Olof Johansson [Sat, 1 Jun 2013 06:39:35 +0000 (23:39 -0700)]
Merge branch 'VExpress_DCSCB' of git://git.linaro.org/people/nico/linux into next/soc
From Nicolas Pitre:
This is the first MCPM backend submission for VExpress running on RTSM
aka Fast Models implementing the big.LITTLE system architecture. This
enables SMP secondary boot as well as CPU hotplug on this platform.
A big prerequisite for this support is the CCI driver from Lorenzo
included in this pull request.
Also included is Rob Herring's set_auxcr/get_auxcr allowing nicer code.
Signed-off-by: Olof Johansson <olof@lixom.net>
* 'VExpress_DCSCB' of git://git.linaro.org/people/nico/linux:
ARM: vexpress: Select multi-cluster SMP operation if required
ARM: vexpress/dcscb: handle platform coherency exit/setup and CCI
ARM: vexpress/dcscb: do not hardcode number of CPUs per cluster
ARM: vexpress/dcscb: add CPU use counts to the power up/down API implementation
ARM: vexpress: introduce DCSCB support
ARM: introduce common set_auxcr/get_auxcr functions
drivers/bus: arm-cci: function to enable CCI ports from early boot code
drivers: bus: add ARM CCI support
Olof Johansson [Sat, 1 Jun 2013 06:37:22 +0000 (23:37 -0700)]
Merge branch 'depends/rmk-devel-stable' into next/soc
Pulling in base dependencies from rmk's devel-stable branch needed by the
CCI patches for vexpress.
Signed-off-by: Olof Johansson <olof@lixom.net>
* depends/rmk-devel-stable:
ARM: Enable selection of SMP operations at boot time
arm: introduce psci_smp_ops
ARM: ARMv7-M: implement read_cpuid_ext
ARM: ARMv7-M: Allow the building of new kernel port
ARM: ARMv7-M: Add support for exception handling
ARM: Add base support for ARMv7-M
Olof Johansson [Sat, 1 Jun 2013 06:21:13 +0000 (23:21 -0700)]
Merge branch 'next/soc' into for-next
* next/soc:
pci: mvebu: fix the emulation of the status register
pci: mvebu: allow the enumeration of devices beyond physical bridges
pci: mvebu: no longer fake the slot location of downstream devices
Olof Johansson [Sat, 1 Jun 2013 06:20:52 +0000 (23:20 -0700)]
Merge tag 'pcie_bridge-3.11' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper:
mvebu pcie driver (bridge) for v3.11
- mvebu
- allow enumeration of devices beyond physical bridges
- remove faking the slot location
- fix status register emulation
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'pcie_bridge-3.11' of git://git.infradead.org/users/jcooper/linux:
pci: mvebu: fix the emulation of the status register
pci: mvebu: allow the enumeration of devices beyond physical bridges
pci: mvebu: no longer fake the slot location of downstream devices
Olof Johansson [Sat, 1 Jun 2013 06:19:45 +0000 (23:19 -0700)]
Merge branch 'next/soc' into for-next
* next/soc:
arm: kirkwood: convert db-88f6281/db-88f6282 to the Device Tree
arm: kirkwood: convert QNAP TS219 to use DT for the PCIe interface
arm: kirkwood: convert ZyXEL NSA310 to use DT for the PCIe interface
arm: kirkwood: convert MPL CEC4 to use DT for the PCIe interface
arm: kirkwood: convert Iomega Iconnect to use DT for the PCIe interface
arm: kirkwood: add SoC-level Device Tree data for PCIe interfaces
arm: kirkwood: move PCIe window init to legacy driver
pci: mvebu: enable driver usage on Kirkwood
Olof Johansson [Sat, 1 Jun 2013 06:17:39 +0000 (23:17 -0700)]
Merge tag 'pcie_kw-3.11' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper:
mvebu pcie driver (kirkwood) for v3.11
- kirkwood
- enable pcie driver
- migrate boards over to pcie dt init
depends
- mvebu/pcie
- mvebu/of_pci
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'pcie_kw-3.11' of git://git.infradead.org/users/jcooper/linux:
arm: kirkwood: convert db-88f6281/db-88f6282 to the Device Tree
arm: kirkwood: convert QNAP TS219 to use DT for the PCIe interface
arm: kirkwood: convert ZyXEL NSA310 to use DT for the PCIe interface
arm: kirkwood: convert MPL CEC4 to use DT for the PCIe interface
arm: kirkwood: convert Iomega Iconnect to use DT for the PCIe interface
arm: kirkwood: add SoC-level Device Tree data for PCIe interfaces
arm: kirkwood: move PCIe window init to legacy driver
pci: mvebu: enable driver usage on Kirkwood
Olof Johansson [Sat, 1 Jun 2013 06:14:21 +0000 (23:14 -0700)]
Merge branch 'next/soc' into for-next
* next/soc:
pci: mvebu: fix return value check in mvebu_pcie_probe()
arm: mvebu: PCIe support is now available on mvebu
pci: PCIe driver for Marvell Armada 370/XP systems
clk: mvebu: add more PCIe clocks for Armada XP
clk: mvebu: create parent-child relation for PCIe clocks on Armada 370
Olof Johansson [Sat, 1 Jun 2013 06:13:24 +0000 (23:13 -0700)]
Merge tag 'pcie-3.11-2' of git://git.infradead.org/users/jcooper/linux into next/soc
PCI-e driver for mvebu.
* tag 'pcie-3.11-2' of git://git.infradead.org/users/jcooper/linux:
pci: mvebu: fix return value check in mvebu_pcie_probe()
arm: mvebu: PCIe support is now available on mvebu
pci: PCIe driver for Marvell Armada 370/XP systems
clk: mvebu: add more PCIe clocks for Armada XP
clk: mvebu: create parent-child relation for PCIe clocks on Armada 370
of/pci: Add of_pci_parse_bus_range() function
of/pci: Add of_pci_get_devfn() function
of/pci: Provide support for parsing PCI DT ranges property
Olof Johansson [Sat, 1 Jun 2013 05:58:09 +0000 (22:58 -0700)]
Merge branch 'next/cleanup' into for-next
* next/cleanup:
of/pci: Add of_pci_parse_bus_range() function
of/pci: Add of_pci_get_devfn() function
of/pci: Provide support for parsing PCI DT ranges property
Olof Johansson [Sat, 1 Jun 2013 05:56:35 +0000 (22:56 -0700)]
Merge tag 'of_pci-3.11' of git://git.infradead.org/users/jcooper/linux into next/cleanup
From Jason Cooper, of/pci changes for v3.11.
The patches had Reviewed-by: from Rob Herring on the lists, but seems to
have been missed from the commit messages. These will be required as a base
for some of the other functionality in this merge window, so taking it through
arm-soc.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'of_pci-3.11' of git://git.infradead.org/users/jcooper/linux:
of/pci: Add of_pci_parse_bus_range() function
of/pci: Add of_pci_get_devfn() function
of/pci: Provide support for parsing PCI DT ranges property
Olof Johansson [Sat, 1 Jun 2013 05:48:27 +0000 (22:48 -0700)]
Merge branch 'next/dt' into for-next
* next/dt: (27 commits)
arm: kirkwood: openblocks-a6: add support for Init button
arm: kirkwood: openblocks-a6: group pinmux configurations
arm: kirkwood: ts219: move pinmux configs to the right devices
arm: kirkwood: topkick: move pinmux configs to the right devices
arm: kirkwood: openblocks_a6: move pinmux configs to the right devices
arm: kirkwood: nsa310: move pinmux configs to the right devices
arm: kirkwood: readynas: move pinmux configs to the right devices
arm: kirkwood: mplcec4: move pinmux configs to the right devices
arm: kirkwood: buffalo linkstation: move pinmux configs to the right devices
arm: kirkwood: keymile: move pinmux configs to the right devices
arm: kirkwood: ns2: move pinmux configs to the right devices
arm: kirkwood: iomega ix2-200: move pinmux configs to the right devices
arm: kirkwood: iconnect: move pinmux configs to the right devices
arm: kirkwood: iconnect: give meaningful names to pinmux configs
arm: kirkwood: ib62x0: move pinmux configs to the right devices
arm: kirkwood: guruplug: move pinmux configs to the right devices
arm: kirkwood: goflexnet: move pinmux configs to the right devices
arm: kirkwood: dreamplug: move pinmux configs to the right devices
arm: kirkwood: dockstar: move pinmux configs to the right devices
arm: kirkwood: dlink dns: move pinmux configs to the right devices
...
Olof Johansson [Sat, 1 Jun 2013 05:47:53 +0000 (22:47 -0700)]
Merge tag 'dt-3.11-3' of git://git.infradead.org/users/jcooper/linux into next/dt
From jason Cooper, mvebu dt changes for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'dt-3.11-3' of git://git.infradead.org/users/jcooper/linux: (27 commits)
arm: kirkwood: openblocks-a6: add support for Init button
arm: kirkwood: openblocks-a6: group pinmux configurations
arm: kirkwood: ts219: move pinmux configs to the right devices
arm: kirkwood: topkick: move pinmux configs to the right devices
arm: kirkwood: openblocks_a6: move pinmux configs to the right devices
arm: kirkwood: nsa310: move pinmux configs to the right devices
arm: kirkwood: readynas: move pinmux configs to the right devices
arm: kirkwood: mplcec4: move pinmux configs to the right devices
arm: kirkwood: buffalo linkstation: move pinmux configs to the right devices
arm: kirkwood: keymile: move pinmux configs to the right devices
arm: kirkwood: ns2: move pinmux configs to the right devices
arm: kirkwood: iomega ix2-200: move pinmux configs to the right devices
arm: kirkwood: iconnect: move pinmux configs to the right devices
arm: kirkwood: iconnect: give meaningful names to pinmux configs
arm: kirkwood: ib62x0: move pinmux configs to the right devices
arm: kirkwood: guruplug: move pinmux configs to the right devices
arm: kirkwood: goflexnet: move pinmux configs to the right devices
arm: kirkwood: dreamplug: move pinmux configs to the right devices
arm: kirkwood: dockstar: move pinmux configs to the right devices
arm: kirkwood: dlink dns: move pinmux configs to the right devices
...
Olof Johansson [Sat, 1 Jun 2013 05:47:06 +0000 (22:47 -0700)]
Merge branch 'next/soc' into for-next
* next/soc:
arm: kirkwood: Enable cpufreq and ondemand on kirkwood_defconfig
arm: kirkwood: update defconfig with PCIe driver and board updates
arm: mvebu: update defconfig with PCI and USB support
ARM: Kirkwood: Enable USB 3.0 in kirkwood_defconfig
ARM: kirkwood: enable Sheevaplug DT in defconfig
ARM: mvebu: Add support for USB storage class in mvebu_defconfig
Olof Johansson [Sat, 1 Jun 2013 05:46:02 +0000 (22:46 -0700)]
Merge tag 'defconfig-3.11-3' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper, mvebu defconfig changes for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'defconfig-3.11-3' of git://git.infradead.org/users/jcooper/linux:
arm: kirkwood: Enable cpufreq and ondemand on kirkwood_defconfig
arm: kirkwood: update defconfig with PCIe driver and board updates
arm: mvebu: update defconfig with PCI and USB support
ARM: Kirkwood: Enable USB 3.0 in kirkwood_defconfig
ARM: kirkwood: enable Sheevaplug DT in defconfig
ARM: mvebu: Add support for USB storage class in mvebu_defconfig
Olof Johansson [Sat, 1 Jun 2013 05:44:56 +0000 (22:44 -0700)]
Merge branch 'next/boards' into for-next
* next/boards:
ARM: Kirkwood: Convert LSXL to restart-poweroff driver.
ARM: Kirkwood: Make use of the QNAP Power off driver.
ARM: Kirkwood: add DT support for Sheevaplug and Sheevaplug eSATA
Olof Johansson [Sat, 1 Jun 2013 05:44:13 +0000 (22:44 -0700)]
Merge tag 'boards-3.11-2' of git://git.infradead.org/users/jcooper/linux into next/boards
From Jason Cooper, mvebu board changes for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'boards-3.11-2' of git://git.infradead.org/users/jcooper/linux:
ARM: Kirkwood: Convert LSXL to restart-poweroff driver.
ARM: Kirkwood: Make use of the QNAP Power off driver.
ARM: Kirkwood: add DT support for Sheevaplug and Sheevaplug eSATA
Olof Johansson [Sat, 1 Jun 2013 05:39:49 +0000 (22:39 -0700)]
Merge tag 'soc-3.11-2' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper, mvebu soc changes for v3.11
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'soc-3.11-2' of git://git.infradead.org/users/jcooper/linux:
arm: kirkwood: Instantiate cpufreq driver
arm: kirkwood: use the default of match table
Olof Johansson [Sat, 1 Jun 2013 05:28:38 +0000 (22:28 -0700)]
Merge tag 'cleanup-3.11-3' of git://git.infradead.org/users/jcooper/linux into next/cleanup
From Jason Cooper, mvebu cleanup for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'cleanup-3.11-3' of git://git.infradead.org/users/jcooper/linux:
arm: mvebu: mark functions of armada-370-xp.c as static
ARM: mvebu: Remove init_irq declaration in machine description
ARM: Orion: Remove redundant init_dma_coherent_pool_size()
Olof Johansson [Sat, 1 Jun 2013 05:27:01 +0000 (22:27 -0700)]
Merge tag 'fixes-non-3.11-1' of git://git.infradead.org/users/jcooper/linux into next/fixes-non-critical
From Jason Cooper:
mvebu fixes non-critical for v3.11 (round 1)
- mvebu
- fix register area length in dtsi for ethernet and sata
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'fixes-non-3.11-1' of git://git.infradead.org/users/jcooper/linux:
arm: mvebu: fix length of Ethernet registers area in .dtsi
arm: mvebu: fix length of SATA registers area in .dtsi
Olof Johansson [Sat, 1 Jun 2013 05:08:11 +0000 (22:08 -0700)]
Merge tag 'arm-soc-cleanups-for-3.11' of git://github.com/mripard/linux into next/cleanup
From Maxime Ripard:
Cleanups in various machine definitions
- Patches to remove the .init_irq definition when using irqchip_init
- Make the ARM core code call debug_ll_io_init when no map_io callback is
declared
- Remove the .map_io definition in the various machines using it
(Some of these go through the platform maintainers, these are the ones who got
explicitly acked and not picked up by anyone else)
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'arm-soc-cleanups-for-3.11' of git://github.com/mripard/linux:
ARM: sunxi: Remove the .map_io function declaration
ARM: mxs: remove the .map_io declaration
ARM: highbank: remove the .map_io declaration
ARM: mmu: Call debug_ll_io_init if no map_io function is specified
ARM: vt8500: Remove init_irq declaration in machine description
ARM: virt: Remove init_irq declaration in machine description
ARM: vexpress: Remove init_irq declaration in machine description
ARM: sirf: Remove init_irq declaration in machine description
ARM: spear: Remove init_irq declaration in machine description
ARM: nomadik: Remove init_irq declaration in machine description
Will Schmidt [Mon, 20 May 2013 05:04:18 +0000 (05:04 +0000)]
powerpc/cputable: Fix typo on P7+ cputable entry
Fix a typo in setting COMMON_USER2_POWER7 bits to .cpu_user_features2
cpu specs table.
Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Srivatsa S. Bhat [Tue, 21 May 2013 09:32:48 +0000 (09:32 +0000)]
powerpc/pseries: Always enable CONFIG_HOTPLUG_CPU on PSERIES SMP
Adam Lackorzynski reported the following build failure on
!CONFIG_HOTPLUG_CPU configuration:
CC arch/powerpc/kernel/rtas.o
arch/powerpc/kernel/rtas.c: In function ‘rtas_cpu_state_change_mask’:
arch/powerpc/kernel/rtas.c:843:4: error: implicit declaration of function ‘cpu_down’ [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors
make[1]: *** [arch/powerpc/kernel/rtas.o] Error 1
make: *** [arch/powerpc/kernel] Error 2
The build fails because cpu_down() is defined only under CONFIG_HOTPLUG_CPU.
Looking further, the mobility code in pseries is one of the call-sites which
uses rtas_ibm_suspend_me(), which in turn calls rtas_cpu_state_change_mask().
And the mobility code is unconditionally compiled-in (it does not fall under
any Kconfig option). And commit 120496ac (powerpc: Bring all threads online
prior to migration/hibernation) which introduced this build regression is
critical for the proper functioning of the migration code. So it appears
that the only solution to this problem is to enable CONFIG_HOTPLUG_CPU if
SMP is enabled on PPC_PSERIES platforms. So make that change in the Kconfig.
Reported-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Cc: stable@vger.kernel.org Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Paul Mackerras [Thu, 23 May 2013 15:42:21 +0000 (15:42 +0000)]
powerpc/kvm/book3s: Add support for H_IPOLL and H_XIRR_X in XICS emulation
This adds the remaining two hypercalls defined by PAPR for manipulating
the XICS interrupt controller, H_IPOLL and H_XIRR_X. H_IPOLL returns
information about the priority and pending interrupts for a virtual
cpu, without changing any state. H_XIRR_X is like H_XIRR in that it
reads and acknowledges the highest-priority pending interrupt, but it
also returns the timestamp (timebase register value) from when the
interrupt was first received by the hypervisor. Currently we just
return the current time, since we don't do any software queueing of
virtual interrupts inside the XICS emulation code.
These hcalls are not currently used by Linux guests, but may be in
future.
Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
While returning from exception handling in case of PREEMPT enabled,
_TIF_NEED_RESCHED bit is checked in TI_FLAGS (thread_info flag) of current
task. Only if this bit is set, it should continue with the process of
calling preempt_schedule_irq() to schedule highest priority task if
available.
Current code assumes that r8 contains TI_FLAGS and check this for
_TIF_NEED_RESCHED, but as r8 is modified in the code which executes before
this check, r8 no longer contains the expected TI_FLAGS information.
As a result check for comparison with _TIF_NEED_RESCHED was failing even if
NEED_RESCHED bit is set in the current thread_info flag. Due to this,
preempt_schedule_irq() and in turn scheduler was not getting called even if
highest priority task is ready for execution.
So, store temporary results in r0 instead of r8 to prevent r8 from getting
modified as subsequent code is dependent on its value.
powerpc/mm: Always invalidate tlb on hpte invalidate and update
If a hash bucket gets full, we "evict" a more/less random entry from it.
When we do that we don't invalidate the TLB (hpte_remove) because we assume
the old translation is still technically "valid". This implies that when
we are invalidating or updating pte, even if HPTE entry is not valid
we should do a tlb invalidate.
Michael Neuling [Wed, 29 May 2013 19:34:27 +0000 (19:34 +0000)]
powerpc/pseries: Kill all prefetch streams on context switch
On context switch, we should have no prefetch streams leak from one
userspace process to another. This frees up prefetch resources for the
next process.
Based on patch from Milton Miller.
Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Maynard informed me that neither the oprofile kernel module nor oprofile
userspace has been updated to support that "legacy" oprofile module
interface for power8, which is indicated by "ppc64/power8." This results
in no samples. The solution is to default to the "timer" type, instead.
The raw entry also should be updated, as "ppc64/ibm-compat-v1" indicates
to oprofile userspace to use "compatibility events" which are obsolete
in ISA 2.07.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Sun, 26 May 2013 18:09:41 +0000 (18:09 +0000)]
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
When in an active transaction that takes a signal, we need to be careful with
the stack. It's possible that the stack has moved back up after the tbegin.
The obvious case here is when the tbegin is called inside a function that
returns before a tend. In this case, the stack is part of the checkpointed
transactional memory state. If we write over this non transactionally or in
suspend, we are in trouble because if we get a tm abort, the program counter
and stack pointer will be back at the tbegin but our in memory stack won't be
valid anymore.
To avoid this, when taking a signal in an active transaction, we need to use
the stack pointer from the checkpointed state, rather than the speculated
state. This ensures that the signal context (written tm suspended) will be
written below the stack required for the rollback. The transaction is aborted
becuase of the treclaim, so any memory written between the tbegin and the
signal will be rolled back anyway.
For signals taken in non-TM or suspended mode, we use the
normal/non-checkpointed stack pointer.
Tested with 64 and 32 bit signals
Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: <stable@vger.kernel.org> # v3.9 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Sun, 26 May 2013 18:09:39 +0000 (18:09 +0000)]
powerpc/tm: Abort on emulation and alignment faults
If we are emulating an instruction inside an active user transaction that
touches memory, the kernel can't emulate it as it operates in transactional
suspend context. We need to abort these transactions and send them back to
userspace for the hardware to rollback.
We can service these if the user transaction is in suspend mode, since the
kernel will operate in the same suspend context.
This adds a check to all alignment faults and to specific instruction
emulations (only string instructions for now). If the user process is in an
active (non-suspended) transaction, we abort the transaction go back to
userspace allowing the HW to roll back the transaction and tell the user of the
failure. This also adds new tm abort cause codes to report the reason of the
persistent error to the user.
Crappy test case here http://neuling.org/devel/junkcode/aligntm.c
Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: <stable@vger.kernel.org> # v3.9 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Sun, 26 May 2013 18:09:38 +0000 (18:09 +0000)]
powerpc/tm: Update cause codes documentation
Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: <stable@vger.kernel.org> # 3.9 only Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Sun, 26 May 2013 18:09:37 +0000 (18:09 +0000)]
powerpc/tm: Make room for hypervisor in abort cause codes
PAPR carves out 0xff-0xe0 for hypervisor use of transactional memory software
abort cause codes. Unfortunately we don't respect this currently.
Below fixes this to move our cause codes to below this region.
Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: <stable@vger.kernel.org> # 3.9 only Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Linus Torvalds [Fri, 31 May 2013 21:59:14 +0000 (06:59 +0900)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull reiserfs fixes from Jan Kara:
"Three reiserfs fixes. They fix real problems spotted by users so I
hope they are ok even at this stage."
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: fix deadlock with nfs racing on create/lookup
reiserfs: fix problems with chowning setuid file w/ xattrs
reiserfs: fix spurious multiple-fill in reiserfs_readdir_dentry
Linus Torvalds [Fri, 31 May 2013 21:56:21 +0000 (06:56 +0900)]
Merge tag 'for-linus-v3.10-rc4-crc-xattr-fixes' of git://oss.sgi.com/xfs/xfs
Pull xfs extended attribute fixes for CRCs from Ben Myers:
"Here are several fixes that are relevant on CRC enabled XFS
filesystems. They are followed by a rework of the remote attribute
code so that each block of the attribute contains a header with a CRC.
Previously there was a CRC header per extent in the remote attribute
code, but this was untenable because it was not possible to know how
many extents would be allocated for the attribute until after the
allocation has completed, due to the fragmentation of free space.
This became complicated because the size of the headers needs to be
added to the length of the payload to get the overall length required
for the allocation. With a header per block, things are less
complicated at the cost of a little space.
I would have preferred to defer this and the rest of the CRC queue to
3.11 to mitigate risk for existing non-crc users in 3.10. Doing so
would require setting a feature bit for the on-disk changes, and so I
have been pressured into sending this pull request by Eric Sandeen and
David Chinner from Red Hat. I'll send another pull request or two
with the rest of the CRC queue next week.
- Remove assert on count of remote attribute CRC headers
- Fix the number of blocks read in for remote attributes
- Zero remote attribute tails properly
- Fix mapping of remote attribute buffers to have correct length
- initialize temp leaf properly in xfs_attr3_leaf_unbalance, and
xfs_attr3_leaf_compact
- Rework remote atttributes to have a header per block"
* tag 'for-linus-v3.10-rc4-crc-xattr-fixes' of git://oss.sgi.com/xfs/xfs:
xfs: rework remote attr CRCs
xfs: fully initialise temp leaf in xfs_attr3_leaf_compact
xfs: fully initialise temp leaf in xfs_attr3_leaf_unbalance
xfs: correctly map remote attr buffers during removal
xfs: remote attribute tail zeroing does too much
xfs: remote attribute read too short
xfs: remote attribute allocation may be contiguous
Linus Torvalds [Fri, 31 May 2013 21:50:16 +0000 (06:50 +0900)]
Merge tag 'for-linus-v3.10-rc4' of git://oss.sgi.com/xfs/xfs
Pull xfs fixes from Ben Myers:
- Fix nested transactions in xfs_qm_scall_setqlim
- Clear suid/sgid bits when we truncate with size update
- Fix recovery for split buffers
- Fix block count on remote symlinks
- Add fsgeom flag for v5 superblock support
- Disable XFS_IOC_SWAPEXT for CRC enabled filesystems
- Fix dirv3 freespace block corruption
* tag 'for-linus-v3.10-rc4' of git://oss.sgi.com/xfs/xfs:
xfs: fix dir3 freespace block corruption
xfs: disable swap extents ioctl on CRC enabled filesystems
xfs: add fsgeom flag for v5 superblock support.
xfs: fix incorrect remote symlink block count
xfs: fix split buffer vector log recovery support
xfs: kill suid/sgid through the truncate path.
xfs: avoid nesting transactions in xfs_qm_scall_setqlim()
Linus Torvalds [Fri, 31 May 2013 21:45:10 +0000 (06:45 +0900)]
Merge tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fixes from Catalin Marinas:
- Module compilation issues (symbol not exported).
- Plug a hole where user space can bring the kernel down.
* tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: don't kill the kernel on a bad esr from el0
arm64: treat unhandled compat el0 traps as undef
arm64: Do not report user faults for handled signals
arm64: kernel: compiling issue, need 'EXPORT_SYMBOL(clear_page)'
Jeff Mahoney [Fri, 31 May 2013 19:51:17 +0000 (15:51 -0400)]
reiserfs: fix deadlock with nfs racing on create/lookup
Reiserfs is currently able to be deadlocked by having two NFS clients
where one has removed and recreated a file and another is accessing the
file with an open file handle.
If one client deletes and recreates a file with timing such that the
recreated file obtains the same [dirid, objectid] pair as the original
file while another client accesses the file via file handle, the create
and lookup can race and deadlock if the lookup manages to create the
in-memory inode first.
The create thread, in insert_inode_locked4, will hold the write lock
while waiting on the other inode to be unlocked. The lookup thread,
anywhere in the iget path, will release and reacquire the write lock while
it schedules. If it needs to reacquire the lock while the create thread
has it, it will never be able to make forward progress because it needs
to reacquire the lock before ultimately unlocking the inode.
This patch drops the write lock across the insert_inode_locked4 call so
that the ordering of inode_wait -> write lock is retained. Since this
would have been the case before the BKL push-down, this is safe.
Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
Jeff Mahoney [Fri, 31 May 2013 19:54:17 +0000 (15:54 -0400)]
reiserfs: fix problems with chowning setuid file w/ xattrs
reiserfs_chown_xattrs() takes the iattr struct passed into ->setattr
and uses it to iterate over all the attrs associated with a file to change
ownership of xattrs (and transfer quota associated with the xattr files).
When the setuid bit is cleared during chown, ATTR_MODE and iattr->ia_mode
are passed to all the xattrs as well. This means that the xattr directory
will have S_IFREG added to its mode bits.
This has been prevented in practice by a missing IS_PRIVATE check
in reiserfs_acl_chmod, which caused a double-lock to occur while holding
the write lock. Since the file system was completely locked up, the
writeout of the corrupted mode never happened.
This patch temporarily clears everything but ATTR_UID|ATTR_GID for the
calls to reiserfs_setattr and adds the missing IS_PRIVATE check.
Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
Jeff Mahoney [Fri, 31 May 2013 19:07:52 +0000 (15:07 -0400)]
reiserfs: fix spurious multiple-fill in reiserfs_readdir_dentry
After sleeping for filldir(), we check to see if the file system has
changed and research. The next_pos pointer is updated but its value
isn't pushed into the key used for the search itself. As a result,
the search returns the same item that the last cycle of the loop did
and filldir() is called multiple times with the same data.
The end result is that the buffer can contain the same name multiple
times. This can be returned to userspace or used internally in the
xattr code where it can manifest with the following warning:
jdm-20004 reiserfs_delete_xattrs: Couldn't delete all xattrs (-2)
reiserfs_for_each_xattr uses reiserfs_readdir_dentry to iterate over
the xattr names and ends up trying to unlink the same name twice. The
second attempt fails with -ENOENT and the error is returned. At some
point I'll need to add support into reiserfsck to remove the orphaned
directories left behind when this occurs.
The fix is to push the value into the key before researching.
Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
Boris BREZILLON [Fri, 24 May 2013 10:05:56 +0000 (10:05 +0000)]
ARM: at91/dt: add pinctrl definition for at91 tc blocks
This patch adds pinctrl configurations for at91 Timer Counter blocks.
These pin definitions can be referenced by "atmel,tcb-pwm" devices to
setup pins as PWM output for instance.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
[nicolas.ferre@atmel.com: switch to pinctrl pre-processor macros] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Wenyou Yang [Fri, 31 May 2013 03:10:02 +0000 (11:10 +0800)]
ARM: at91/dtsi: add the watchdog nodes for at91 SoC
at91sam9x5, at91sam9n12
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Al Viro [Thu, 23 May 2013 08:38:22 +0000 (04:38 -0400)]
zoran: racy refcount handling in vm_ops ->open()/->close()
worse, we lock ->resource_lock too late when we are destroying the
final clonal VMA; the check for lack of other mappings of the same
opened file can race with mmap().
Richard Genoud [Fri, 31 May 2013 15:49:35 +0000 (15:49 +0000)]
atmel_lcdfb: blank the backlight on remove
When removing atmel_lcdfb module, the backlight is unregistered but not
blanked. (only for CONFIG_BACKLIGHT_ATMEL_LCDC case).
This can result in the screen going full white depending on how the PWM
is wired.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
projects / karo-tx-linux.git / log