Heiko Carstens [Mon, 12 Nov 2012 09:03:25 +0000 (10:03 +0100)]
s390/topology: cleanup topology code
Mainly merge all different per-cpu arrays into a single array which
holds all topology information per logical cpu.
Also fix the broken core vs socket variable naming and simplify the
locking a bit.
When running in environments without topology information also
invent book, socket and core ids, so that not all ids are zero.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 8 Nov 2012 13:18:47 +0000 (14:18 +0100)]
s390/mm: have 16 byte aligned struct pages
Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make
use of compare and swap double for lockless updates. This increases the size
of struct page to 64 bytes (instead of 56 bytes), however the performance gain
justifies the increased size:
- now excactly four struct pages fit into a single cache line; the
case that accessing a struct page causes two cache line loads
does not exist anymore.
- calculating the offset of a struct page within the memmap array
is only a simple shift instead of a more expensive multiplication.
A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime
improvement.
Ingo Tuchscherer [Wed, 31 Oct 2012 09:38:15 +0000 (10:38 +0100)]
s390/zcrypt: msgType50 (RSA-CRT) fix
The message request handling (type50 - clear key) for RSA operations
(in CRT format) are now handled correctly with respect to the crb
format container.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Tue, 30 Oct 2012 13:49:37 +0000 (14:49 +0100)]
s390/mm: keep fault_init() private to fault.c
Just convert fault_init() to an early initcall. That's still early
enough since it only needs be called before user space processes get
executed. No reason to externalize it.
Also add the function to the init section and move the store_indication
variable to the read_mostly section.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Jan Glauber [Fri, 26 Oct 2012 13:06:12 +0000 (15:06 +0200)]
s390/crypto: Don't panic after crypto instruction failures
Remove the BUG_ON's that check for failure or incomplete
results of the s390 hardware crypto instructions.
Rather report the errors as -EIO to the crypto layer.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Jan Glauber [Wed, 24 Oct 2012 10:38:35 +0000 (12:38 +0200)]
s390/qdio: rework BUG's and WARN_ON's
Remove or replace BUG/BUG_ON where possible and convert WARN_ON
to WARN_ON_ONCE if they can occur freqeuently as pointed out by:
https://lkml.org/lkml/2012/9/27/461
Checks have been removed if:
- the error condition leads to a hardware error which gets logged
and in most cases stops the device
- the error condition is a null pointer access
- the error condition is just pointless or already handled at
another location
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Sebastian Ott [Tue, 23 Oct 2012 18:28:37 +0000 (20:28 +0200)]
s390/dasd: fix multi-line printks with multiple KERN_<level>s
Do not use more than one KERN_<level> per printk.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Thu, 18 Oct 2012 16:10:06 +0000 (18:10 +0200)]
s390/traps: preinitialize program check table
Preinitialize the program check table, so we can put it into the
read-only data section.
Also use only four byte entries for the table, since each program
check handler resides within the first 2GB. Therefore this reduces
the size of the table by 50% on 64 bit builds.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 17 Oct 2012 10:18:05 +0000 (12:18 +0200)]
s390/mm,vmemmap: use 1MB frames for vmemmap
Use 1MB frames for vmemmap if EDAT1 is available in order to
reduce TLB pressure
Always use a 1MB frame even if its only partially needed for
struct pages. Otherwise we would end up with a mix of large
frame and page mappings, because vmemmap_populate gets called
for each section (256MB -> 3.5MB memmap) separately.
Worst case is that we would waste 512KB.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Sat, 10 Nov 2012 10:04:27 +0000 (11:04 +0100)]
s390/topology: fix core id vs physical package id mix-up
The current topology code confuses core id vs physical package id.
In other words /sys/devices/system/cpu/cpuX/topology/core_id
displays the physical_package_id (aka socket id) instead of the
core id.
The physical_package_id sysfs attribute always displays "-1"
instead of the socket id.
Fix this mix-up with a small patch which defines and initializes
topology_physical_package_id correctly and fixes the broken
core id handling.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If user space is running in primary mode it can switch to secondary
or access register mode, this is used e.g. in the clock_gettime code
of the vdso. If a signal is delivered to the user space process while
it has been running in access register mode the signal handler is
executed in access register mode as well which will result in a crash
most of the time.
Set the address space control bits in the PSW to the default for the
execution of the signal handler and make sure that the previous
address space control is restored on signal return. Take care
that user space can not switch to the kernel address space by
modifying the registers in the signal frame.
Cc: stable@vger.kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Josh Cartwright [Wed, 31 Oct 2012 18:24:48 +0000 (12:24 -0600)]
ARM: zynq: dts: split up device tree
The purpose of the created zynq-7000.dtsi file is to describe the
hardware common to all Zynq 7000-based boards. Also, get rid of the
zynq-ep107 device tree, since it is not hardware anyone can purchase.
Add a zc702 dts file based on the zynq-7000.dtsi. Add it to the
dts/Makefile so it is built with the 'dtbs' target.
Signed-off-by: Josh Cartwright <josh.cartwright@ni.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
Greg Ungerer [Mon, 22 Oct 2012 05:29:59 +0000 (15:29 +1000)]
m68knommu: make non-MMU page_to_virt() return a void *
The page_to_virt() macro for m68knommu is currently effectively returning
an int type. But the equivilent m68k macro returns a void * virtual address.
Modify the non-MMU macro to return a void * as well (using the __va macro).
This change will remove compiler warnings in common m68k code that use this
macro.
m68knommu: merge ColdFire 5249 and 525x definitions
The ColdFire 5249 and 525x family of SoCs are very similar. Most of the
internals are the same, and are mapped the same. We can use a single set of
peripheral definitions for all of them.
So merge the current m5249sim.h and m525xsim.h definitions into a single
file. The 5249 is now obsolete, and the 525x parts are current, so I have
chosen to move everything into the existing m525xsim.h file.
Luis Alves [Thu, 25 Oct 2012 20:01:16 +0000 (21:01 +0100)]
m68knommu: disable MC68000 cpu target when MMU is selected
As pointed out by Geert, MC68000 target needs to be disabled when
MMU support is enabled.
From Geert:
This needs a "depends on !MMU".
Else allmodconfig will select it, causing -m68000 to be passed to the assembler,
which may break the build depending on your version of binutils, a.o.
arch/m68k/kernel/entry.S:186: Error: invalid instruction for this
architecture; needs 68020 or higher (68020 [68k, 68ec020], 68030
[68ec030], 68040 [68ec040], 68060 [68ec060]) -- statement `bfextu
%sp@(50){#0,#4},%d0' ignored
arch/m68k/kernel/entry.S:211: Error: invalid operand mode for this
architecture; needs 68020 or higher -- statement `jbsr
@(sys_call_table,%d0:l:4)@(0)' ignored
Xi Wang [Sun, 11 Nov 2012 11:20:01 +0000 (11:20 +0000)]
ipv4: avoid undefined behavior in do_ip_setsockopt()
(1<<optname) is undefined behavior in C with a negative optname or
optname larger than 31. In those cases the result of the shift is
not necessarily zero (e.g., on x86).
This patch simplifies the code with a switch statement on optname.
It also allows the compiler to generate better code (e.g., using a
64-bit mask).
Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Theodore Ts'o [Sun, 11 Nov 2012 03:20:05 +0000 (22:20 -0500)]
ext4: do not use ext4_error() when there is no space in dir leaf for csum
If there is no space for a checksum in a directory leaf node,
previously we would use EXT4_ERROR_INODE() which would mark the file
system as inconsistent. While it would be nice to use e2fsck -D, it
certainly isn't required, so just print a warning using
ext4_warning().
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Pull networking fixes from David Miller:
"Bug fixes galore, mostly in drivers as is often the case:
1) USB gadget and cdc_eem drivers need adjustments to their frame size
lengths in order to handle VLANs correctly. From Ian Coolidge.
2) TIPC and several network drivers erroneously call tasklet_disable
before tasklet_kill, fix from Xiaotian Feng.
3) r8169 driver needs to apply the WOL suspend quirk to more chipsets,
fix from Cyril Brulebois.
4) Fix multicast filters on RTL_GIGA_MAC_VER_35 r8169 chips, from
Nathan Walp.
5) FDB netlink dumps should use RTM_NEWNEIGH as the message type, not
zero. From John Fastabend.
6) Fix smsc95xx tx checksum offload on big-endian, from Steve
Glendinning.
7) __inet_diag_dump() needs to repsect and report the error value
returned from inet_diag_lock_handler() rather than ignore it.
Otherwise if an inet diag handler is not available for a particular
protocol, we essentially report success instead of giving an error
indication. Fix from Cyrill Gorcunov.
8) When the QFQ packet scheduler sees TSO/GSO packets it does not
handle things properly, and in fact ends up corrupting it's
datastructures as well as mis-schedule packets. Fix from Paolo
Valente.
9) Fix oopser in skb_loop_sk(), from Eric Leblond.
10) CXGB4 passes partially uninitialized datastructures in to FW
commands, fix from Vipul Pandya.
11) When we send unsolicited ipv6 neighbour advertisements, we should
send them to the link-local allnodes multicast address, as per
RFC4861. Fix from Hannes Frederic Sowa.
12) There is some kind of bug in the usbnet's kevent deferral
mechanism, but more immediately when it triggers an uncontrolled
stream of kernel messages spam the log. Rate limit the error log
message triggered when this problem occurs, as sending thousands
of error messages into the kernel log doesn't help matters at all,
and in fact makes further diagnosis more difficult.
From Steve Glendinning.
13) Fix gianfar restore from hibernation, from Wang Dongsheng.
14) The netlink message attribute sizes are wrong in the ipv6 GRE
driver, it was using the size of ipv4 addresses instead of ipv6
ones :-) Fix from Nicolas Dichtel."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
gre6: fix rtnl dump messages
gianfar: ethernet vanishes after restoring from hibernation
usbnet: ratelimit kevent may have been dropped warnings
ipv6: send unsolicited neighbour advertisements to all-nodes
net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
usb: gadget: g_ether: fix frame size check for 802.1Q
cxgb4: Fix initialization of SGE_CONTROL register
isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
cxgb4: Initialize data structures before using.
af-packet: fix oops when socket is not present
pkt_sched: enable QFQ to support TSO/GSO
net: inet_diag -- Return error code if protocol handler is missed
net: bnx2x: Fix typo in bnx2x driver
smsc95xx: fix tx checksum offload for big endian
rtnetlink: Use nlmsg type RTM_NEWNEIGH from dflt fdb dump
ptp: update adjfreq callback description
r8169: allow multicast packets on sub-8168f chipset.
r8169: Fix WoL on RTL8168d/8111d.
drivers/net: use tasklet_kill in device remove/close process
tipc: do not use tasklet_disable before tasklet_kill
Pull sparc fixes from David Miller:
"Several build/bug fixes for sparc, including:
1) Configuring a mix of static vs. modular sparc64 crypto modules
didn't work, remove an ill-conceived attempt to only have to build
the device match table for these drivers once to fix the problem.
Reported by Meelis Roos.
2) Make the montgomery multiple/square and mpmul instructions actually
usable in 32-bit tasks. Essentially this involves providing 32-bit
userspace with a way to use a 64-bit stack when it needs to.
3) Our sparc64 atomic backoffs don't yield cpu strands properly on
Niagara chips. Use pause instruction when available to achieve
this, otherwise use a benign instruction we know blocks the strand
for some time.
4) Wire up kcmp
5) Fix the build of various drivers by removing the unnecessary
blocking of OF_GPIO when SPARC.
6) Fix unintended regression wherein of_address_to_resource stopped
being provided. Fix from Andreas Larsson.
7) Fix NULL dereference in leon_handle_ext_irq(), also from Andreas
Larsson."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix build with mix of modular vs. non-modular crypto drivers.
sparc: Support atomic64_dec_if_positive properly.
of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again
sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq
sparc: Add sparc support for platform_get_irq()
sparc: Allow OF_GPIO on sparc.
qlogicpti: Fix build warning.
sparc: Wire up sys_kcmp.
sparc64: Improvde documentation and readability of atomic backoff code.
sparc64: Use pause instruction when available.
sparc64: Fix cpu strand yielding.
sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.
Linus Torvalds [Sat, 10 Nov 2012 05:59:35 +0000 (06:59 +0100)]
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Jeff Layton.
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not lookup hashed negative dentry in cifs_atomic_open
cifs: fix potential buffer overrun in cifs.idmap handling code
Linus Torvalds [Sat, 10 Nov 2012 05:58:20 +0000 (06:58 +0100)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fixes from Catalin Marinas:
- correct argument type (pgprot_t) when calling __ioremap()
- PCI_IOBASE virtual address change
- use architected event for CPU cycle counter
- fix ELF core dumping
- select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
- missing completion for secondary CPU boot
- booting on systems with all memory beyond 4GB
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: mm: fix booting on systems with no memory below 4GB
arm64: smp: add missing completion for secondary boot
arm64: compat: select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
arm64: elf: fix core dumping definitions for GP and FP registers
arm64: perf: use architected event for CPU cycle counter
arm64: Move PCI_IOBASE closer to MODULES_VADDR
arm64: Use pgprot_t as the last argument when invoking __ioremap()
Linus Torvalds [Sat, 10 Nov 2012 05:56:21 +0000 (06:56 +0100)]
Merge tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
"There are three ARM compile fixes (we forgot to export certain
functions and if the drivers are built as an module - we go belly-up).
There is also an mismatch of irq_enter() / exit_idle() calls sequence
which were fixed some time ago in other piece of codes, but failed to
appear in the Xen code.
Lastly a fix for to help in the field with troubleshooting in case we
cannot get the appropriate parameter and also fallback code when
working with very old hypervisors."
Bug-fixes:
- Fix compile issues on ARM.
- Fix hypercall fallback code for old hypervisors.
- Print out which HVM parameter failed if it fails.
- Fix idle notifier call after irq_enter.
* tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/arm: Fix compile errors when drivers are compiled as modules (export more).
xen/arm: Fix compile errors when drivers are compiled as modules.
xen/generic: Disable fallback build on ARM.
xen/events: fix RCU warning, or Call idle notifier after irq_enter()
xen/hvm: If we fail to fetch an HVM parameter print out which flag it is.
xen/hypercall: fix hypercall fallback code for very old hypervisors
David S. Miller [Sat, 10 Nov 2012 04:53:32 +0000 (20:53 -0800)]
sparc64: Fix build with mix of modular vs. non-modular crypto drivers.
We tried linking in a single built object to hold the device table,
but only works if all of the sparc64 crypto modules get built the same
way (modular vs. non-modular).
Just include the device ID stub into each driver source file so that
the table gets compiled into the correct result in all cases.
Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Larsson [Tue, 6 Nov 2012 00:12:03 +0000 (00:12 +0000)]
of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again
This bug-fix makes sure that of_address_to_resource is defined extern for sparc
so that the sparc-specific implementation of of_address_to_resource() is once
again used when including include/linux/of_address.h in a sparc context. A
number of drivers in mainline relies on this function working for sparc.
The bug was introduced in a850a7554442f08d3e910c6eeb4ee216868dda1e, "of/address:
add empty static inlines for !CONFIG_OF". Contrary to that commit title, the
static inlines are added for !CONFIG_OF_ADDRESS, and CONFIG_OF_ADDRESS is never
defined for sparc. This is good behavior for the other functions in
include/linux/of_address.h, as the extern functions defined in
drivers/of/address.c only gets linked when OF_ADDRESS is configured. However,
for of_address_to_resource there exists a sparc-specific implementation in
arch/sparc/arch/sparc/kernel/of_device_common.c
Solution suggested by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andreas Larsson <andreas@gaisler.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Larsson [Tue, 30 Oct 2012 00:09:46 +0000 (00:09 +0000)]
sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq
If an irq is being unlinked concurrently with leon_handle_ext_irq,
irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that
this is not dereferenced.
Signed-off-by: Andreas Larsson <andreas@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Larsson [Mon, 29 Oct 2012 23:26:56 +0000 (23:26 +0000)]
sparc: Add sparc support for platform_get_irq()
This adds sparc support for platform_get_irq that in the normal case use
platform_get_resource() to get an irq. This standard approach fails for sparc as
there are no resources of type IORESOURCE_IRQ for irqs for sparc.
Cross platform drivers can then use this standard platform function and work on
sparc instead of having to have a special case for sparc.
Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Wang Dongsheng [Fri, 9 Nov 2012 04:43:51 +0000 (04:43 +0000)]
gianfar: ethernet vanishes after restoring from hibernation
If a gianfar ethernet device is down prior to hibernating a
system, it will no longer be present upon system restore.
For example:
~# ifconfig eth0 down
~# echo disk > /sys/power/state
<trigger a restore from hibernation>
~# ifconfig eth0 up
SIOCSIFFLAGS: No such device
This happens because the restore function bails out early upon
finding devices that were not up at hibernation. In doing so,
it never gets to the netif_device_attach call at the end of
the restore function. Adding the netif_device_attach as done
here also makes the gfar_restore code consistent with what is
done in the gfar_resume code.
Cc: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
usbnet: ratelimit kevent may have been dropped warnings
when something goes wrong, a flood of these messages can be
generated by usbnet (thousands per second). This doesn't
generally *help* the condition so this patch ratelimits the
rate of their generation.
There's an underlying problem in usbnet's kevent deferral
mechanism which needs fixing, specifically that events *can*
get dropped and not handled. This patch doesn't address this,
but just mitigates fallout caused by the current implemention.
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6: send unsolicited neighbour advertisements to all-nodes
As documented in RFC4861 (Neighbor Discovery for IP version 6) 7.2.6.,
unsolicited neighbour advertisements should be sent to the all-nodes
multicast address.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 9 Nov 2012 20:35:51 +0000 (21:35 +0100)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes (again) from Dave Airlie:
"dropped the ball on a vmware patch, so two more fixes for vmwgfx are
here, one for hibernate issue, one for a BUG trigger."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Fix a case where the code would BUG when trying to pin GMR memory
drm/vmwgfx: Fix hibernation device reset
Linus Torvalds [Fri, 9 Nov 2012 20:33:53 +0000 (21:33 +0100)]
Merge tag '3.7-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Power management:
- PCI/PM: Fix proc config reg access for D3cold and bridge
suspending
- PCI/PM: Resume device before shutdown
- PCI/PM: Fix deadlock when unbinding device if parent in D3cold
Hotplug:
- PCI/portdrv: Don't create hotplug slots unless port supports
hotplug"
* tag '3.7-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/portdrv: Don't create hotplug slots unless port supports hotplug
PCI/PM: Fix proc config reg access for D3cold and bridge suspending
PCI/PM: Resume device before shutdown
PCI/PM: Fix deadlock when unbinding device if parent in D3cold
Linus Torvalds [Fri, 9 Nov 2012 20:32:33 +0000 (21:32 +0100)]
Merge tag 'mmc-fixes-for-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC fixes from Chris Ball:
- sdhci: fix a NULL dereference at resume-time, seen on OLPC XO-4
- sdhci: fix against 3.7-rc1 for UHS modes without a vqmmc regulator
- sdhci-of-esdhc: disable CMD23 on boards where it's broken
- sdhci-s3c: fix against 3.7-rc1 for card detection with runtime PM
- dw_mmc, omap_hsmmc: fix potential NULL derefs, compiler warnings
* tag 'mmc-fixes-for-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: sdhci-s3c: fix the card detection in runtime-pm
mmc: sdhci-s3c: use clk_prepare_enable and clk_disable_unprepare
mmc: dw_mmc: constify dw_mci_idmac_ops in exynos back-end
mmc: dw_mmc: fix modular build for exynos back-end
mmc: sdhci: fix NULL dereference in sdhci_request() tuning
mmc: sdhci: fix IS_ERR() checking of regulator_get()
mmc: fix sdhci-dove probe/removal
mmc: sh_mmcif: fix use after free
mmc: sdhci-pci: fix 'Invalid iomem size' error message condition
mmc: mxcmmc: Fix MODULE_ALIAS
mmc: omap_hsmmc: fix NULL pointer dereference for dt boot
mmc: omap_hsmmc: fix host reference after mmc_free_host
mmc: dw_mmc: fix multiple drv_data NULL dereferences
mmc: dw_mmc: enable controller interrupt before calling mmc_start_host
mmc: sdhci-of-esdhc: disable CMD23 for some Freescale SoCs
mmc: dw_mmc: remove _dev_info compile warning
mmc: dw_mmc: convert the variable type of irq
Pull crypto fix from Herbert Xu:
"This push fixes a potential panic in cryptd which may occur with
crypto drivers such as aesni-intel."
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: cryptd - disable softirqs in cryptd_queue_worker to prevent data corruption
Linus Torvalds [Fri, 9 Nov 2012 17:08:04 +0000 (18:08 +0100)]
Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Most of commits are for stable and regression fixes. Except for one
fix for a regression in 3.7-rc4, there are all driver local changes,
so nothing too much to worry."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: Fix card refcount unbalance
ALSA: hda - Add new codec ALC668 and ALC900 (default name ALC1150)
ALSA: hda - Improve HP depop when system enter to S3
ALSA: usb-audio: Fix crash at re-preparing the PCM stream
ALSA: hdspm - Fix sync check reporting on RME RayDAT
ALSA: hda - Add pin fixups for ASUS G75
ALSA: hda - Fix invalid connections in VT1802 codec
ALSA: hda - Fix empty DAC filling in patch_via.c
ALSA: hda - Force to reset IEC958 status bits for AD codecs
ALSA: es1968: Add ESS vendor ID to pm_whitelist
ALSA: HDA: Mark CS260x immutable structures const
ALSA: HDA: Fix digital microphone on CS420x
ALSA: hda: Cirrus: Fix coefficient index for beep configuration
ALSA: hda - support Teradici 2200 host card audio
ALSA: Fix typo in drivers sound
xen/arm: Fix compile errors when drivers are compiled as modules (export more).
The commit 911dec0db4de6ccc544178a8ddaf9cec0a11d533
"xen/arm: Fix compile errors when drivers are compiled as modules." exports
the neccessary functions. But to guard ourselves against out-of-tree modules
and future drivers hitting this, lets export all of the relevant
hypercalls.
ARM: hw_breakpoint: use CRn as argument for debug reg accessor macros
The coprocessor register CRn for accesses to the debug register can be a
different one than C0. Take this into account for the ARM_DBG_READ and
the ARM_DBG_WRITE macro.
The inline assembler calls which used a coprocessor register CRn other
than C0 are replaced by the ARM_DBG_READ or ARM_DBG_WRITE macro.
Tested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Mon, 24 Sep 2012 17:01:13 +0000 (18:01 +0100)]
ARM: hw_breakpoint: check if monitor mode is enabled during validation
Rather than attempt to enable monitor mode explicitly when scheduling in
a breakpoint event (which could raise an undefined exception trap when
accessing DBGDSCRext), instead check that DBGDSCRint.MDBGen is set
during event validation and report an error to the caller if not.
Will Deacon [Fri, 21 Sep 2012 16:53:08 +0000 (17:53 +0100)]
ARM: hw_breakpoint: don't try to clear v6 debug registers during boot
v6 cores do not provide a way to clear the debug registers without first
enabling monitor mode, meaning that we could take spurious debug
exceptions. Instead, rely on the registers being in a sane state when we
boot as they are defined to be disabled out of reset anyway.
Tested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Fri, 21 Sep 2012 14:38:26 +0000 (15:38 +0100)]
ARM: hw_breakpoint: fix ordering of debug register reset sequence
The debug register reset sequence for v7 and v7.1 is congruent with
tap-dancing through a minefield.
Rather than wait until we've blown ourselves to pieces, this patch
instead checks the debug_err_mask after each potentially faulting
operation. We also move the enabling of monitor_mode to the end of the
sequence in order to prevent spurious debug events generated by UNKNOWN
register values.
Reported-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Fri, 21 Sep 2012 14:08:17 +0000 (15:08 +0100)]
ARM: hw_breakpoint: fix monitor mode detection with v7.1
Detecting whether halting debug is enabled is no longer possible via
the DBGDSCR in v7.1, returning an UNKNOWN value for the HDBGen bit via
CP14 when the OS lock is clear.
This patch removes the halting mode check and ensures that accesses to
the internal and external views of the DBGDSCR are serialised with an
instruction barrier.
Tested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Jon Hunter [Thu, 25 Oct 2012 20:23:18 +0000 (21:23 +0100)]
ARM: PMU: fix runtime PM enable
Commit 7be2958 (ARM: PMU: Add runtime PM Support) updated the ARM PMU code to
use runtime PM which was prototyped and validated on the OMAP devices. In this
commit, there is no call pm_runtime_enable() and for OMAP devices
pm_runtime_enable() is currently being called from the OMAP PMU code when the
PMU device is created. However, there are two problems with this:
1. For any other ARM device wishing to use runtime PM for PMU they will need
to call pm_runtime_enable() for runtime PM to work.
2. When booting with device-tree and using device-tree to create the PMU
device, pm_runtime_enable() needs to be called from within the ARM PERF
driver as we are no longer calling any device specific code to create the
device. Hence, PMU does not work on OMAP devices that use the runtime PM
callbacks when using device-tree to create the PMU device.
Therefore, call pm_runtime_enable() directly from the ARM PMU driver when
registering the device. For platforms that do not use runtime PM,
pm_runtime_enable() does nothing and for platforms that do use runtime PM but
may not require it specifically for PMU, this will just add a little overhead
when initialising and uninitialising the PMU device.
Tested with PERF on OMAP2420, OMAP3430 and OMAP4460.
Acked-by: Kevin Hilman <khilman@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Fri, 21 Sep 2012 13:14:17 +0000 (14:14 +0100)]
ARM: perf: return NOTIFY_DONE from cpu notifier when no available PMU
When attempting to reset the PMU state for either a NULL PMU or a PMU
implementation without a reset function, return NOTIFY_DONE from the CPU
notifier as we don't care about the hotplug event.
Mark Rutland [Fri, 21 Sep 2012 10:53:41 +0000 (11:53 +0100)]
ARM: perf: register cpu_notifier at driver init
The current practice of registering the cpu hotplug notifier at PMU
registration time won't be safe with multiple PMUs, as we'll repeatedly
attempt to register the notifier. This has the unfortunate effect of
silently corrupting the notifier list, leading to boot stalling.
Instead, register the notifier at init time. Its sanity checks will
prevent anything bad from happening if the notifier is called before we
have any PMUs registered.
Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
ARM: perf: check ARMv7 counter validity on a per-pmu basis
Multi-cluster ARMv7 systems may have CPU PMUs with different number of
counters.
This patch updates armv7_pmnc_counter_valid so that it takes a pmu
argument and checks the counter validity against that. We also remove a
number of redundant counter checks whether the current PMU is not easily
retrievable.
Signed-off-by: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
ARM: perf: consistently use struct perf_event in arm_pmu functions
The arm_pmu functions have wildly varied parameters which can often be
derived from struct perf_event.
This patch changes the arm_pmu function prototypes so that struct
perf_event pointers are passed in preference to fields that can be
derived from the event.
Signed-off-by: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Marc Zyngier [Thu, 13 Sep 2012 15:40:46 +0000 (16:40 +0100)]
ARM: perf: add guest vs host discrimination
Add minimal guest support to perf, so it can distinguish whether
the PMU interrupt was in the host or the guest, as well as collecting
some very basic information (guest PC, user vs kernel mode).
This is not feature complete though, as it doesn't support backtracing
in the guest.
Based on the x86 implementation, tested with KVM/ARM.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
drm/vmwgfx: Fix a case where the code would BUG when trying to pin GMR memory
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Dmitry Torokhov <dtor@vmware.com> Cc: stable@vger.kernel.org Cc: linux-graphics-maintainer@vmware.com Signed-off-by: Dave Airlie <airlied@redhat.com>
The device would not reset properly when resuming from hibernation.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Dmitry Torokhov <dtor@vmware.com> Cc: stable@vger.kernel.org Cc: linux-graphics-maintainer@vmware.com Signed-off-by: Dave Airlie <airlied@redhat.com>
projects / karo-tx-linux.git / log