New asics support non-privileged IBs. This allows us
to skip IB checking in the driver since the hardware
will check the command buffers for us. When using
non-privileged IBs, if the CP encounters an illegal
register in the command stream, it will halt and generate
an interrupt. The CP needs to be reset to continue. For now
just do a full GPU reset when this happens.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Mac laptops with multiple GPUs apparently use the gmux
driver for backlight control. Don't register a radeon
backlight interface. We may need to add other pci ids
for other hybrid mac laptops.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=65377
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
- remove adding 2 to checksum, this is incorrect.
This was incorrectly introduced in:
92db7f6c86http://lists.freedesktop.org/archives/dri-devel/2011-December/017717.html
However, the off by 2 was due to adding the version twice.
From the examples in the URL above:
[Rafał Miłecki][RV620] fglrx:
0x7454: 00 A8 5E 79 R600_HDMI_VIDEOINFOFRAME_0
0x7458: 00 28 00 10 R600_HDMI_VIDEOINFOFRAME_1
0x745C: 00 48 00 28 R600_HDMI_VIDEOINFOFRAME_2
0x7460: 02 00 00 48 R600_HDMI_VIDEOINFOFRAME_3
===================
(0x82 + 0x2 + 0xD) + 0x1F8 = 0x289
-0x289 = 0x77
However, the payload sum is not 0x1f8, it's 0x1f6.
00 + A8 + 5E + 00 +
00 + 28 + 00 + 10 +
00 + 48 + 00 + 28 +
00 + 48 =
0x1f6
Bits 25:24 of HDMI_VIDEOINFOFRAME_3 are the packet version, not part
of the payload. So the total would be:
(0x82 + 0x2 + 0xD) + 0x1f6 = 0x287
-0x287 = 0x79
- properly emit the AVI infoframe version. This was not being
emitted previous which is probably what caused the issue above.
This should fix blank screen when HDMI audio is enabled on
certain monitors.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Cc: Rafał Miłecki <zajec5@gmail.com>
This fixes the kernel side so that the ring should come
up and ring and IB tests should work. The userspace
UVD drivers will also need big endian fixes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
UVD ring can't use scratch thus it does need writeback buffer to keep
a valid address or radeon_ring_backup will trigger a kernel fault.
It's ok to not unpin the write back buffer on suspend as it leave in
gtt and thus does not need eviction.
v2: Fix the uvd case.
Reported and tracked by Wojtek <wojtask9@wp.pl>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If a buffer is never bound to a virtual memory pagetable than don't try
to unbind it. Only drawback is that we don't update the pagetable when
unbinding the ib pool buffer which is fine because it only happens at
suspend or module unload/shutdown.
Fixes spurious messages about buffers without VM mappings. E.g.:
radeon 0000:01:00.0: bo ffff88020afac400 don't has a mapping in vm ffff88021ca2b900
Cc: stable@kernel.org
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Daniel writes:
Just tiny regression fixes here:
- Two fixes to fix sdvo hotplug which broke in the hpd storm detection
work.
- One fix to patch-up the sdvo lvds regression fixer from the last pull -
we need to prefer the vbt mode over edid modes.
* tag 'drm-intel-fixes-2013-06-11' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: prefer VBT modes for SVDO-LVDS over EDID
drm/i915: Enable hotplug interrupts after querying hw capabilities.
drm/i915: Fix hotplug interrupt enabling for SDVOC
Patrik writes:
Two fixes for memory leaks split into Cedarview and Poulsbo versions,
and a fix for properly setting the pipe base when using fbdev. It's on
my todo-list to start unifying the chips since they are very similar,
but until then I'd like to split them up in case there are side-effects
on Cedarview that I cannot currently test.
airled: Verified pull from github matches what I expected.
* 'gma500-fixes' of git://github.com/patjak/drm-gma500:
drm/gma500/cdv: Fix cursor gem obj referencing on cdv
drm/gma500/psb: Fix cursor gem obj referencing on psb
drm/gma500/cdv: Unpin framebuffer on crtc disable
drm/gma500/psb: Unpin framebuffer on crtc disable
drm/gma500: Add fb gtt offset to fb base
A few nasty issues, particularly a race with the interrupt controller in
the xilinx driver, together with a couple of more minor fixes and a much
needed move of the mailing list away from sourceforge.
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Merge tag 'spi-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few nasty issues, particularly a race with the interrupt controller
in the xilinx driver, together with a couple of more minor fixes and a
much needed move of the mailing list away from sourceforge."
* tag 'spi-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: hspi: fixup long delay time
spi: spi-xilinx: Remove ISR race condition
spi: topcliff-pch: fix error return code in pch_spi_probe()
spi: topcliff-pch: Pass correct pointer to free_irq()
spi: Move mailing list to vger
- xen/tmem stopped working after a certain combination of modprobe/swapon was used
- cpu online/offlining would trigger WARN_ON.
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Merge tag 'stable/for-linus-3.10-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull xen fixes from Konrad Rzeszutek Wilk:
"Two bug-fixes for regressions:
- xen/tmem stopped working after a certain combination of
modprobe/swapon was used
- cpu online/offlining would trigger WARN_ON."
* tag 'stable/for-linus-3.10-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/tmem: Don't over-write tmem_frontswap_poolid after tmem_frontswap_init set it.
xen/smp: Fixup NOHZ per cpu data when onlining an offline CPU.
The biggest fix here is Lars-Peter's fix for custom locking callbacks
which is pretty localised but important for those devices that use the
feature. Otherwise we've got a couple of fairly small cleanups which
would have been sent sooner were it not for letting Lars-Peter's patch
soak for a while.
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Merge tag 'regmap-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"The biggest fix here is Lars-Peter's fix for custom locking callbacks
which is pretty localised but important for those devices that use the
feature. Otherwise we've got a couple of fairly small cleanups which
would have been sent sooner were it not for letting Lars-Peter's patch
soak for a while"
* tag 'regmap-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: rbtree: Fixed node range check on sync
regmap: regcache: Fixup locking for custom lock callbacks
regmap: debugfs: Check return value of regmap_write()
Pull crypto fixes from Herbert Xu:
"This fixes a build problem in sahara and temporarily disables two new
optimisations because of performance regressions until a permanent fix
is ready"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: sahara - fix building as module
crypto: blowfish - disable AVX2 implementation
crypto: twofish - disable AVX2 implementation
Commit 10a7a07713 ("xen: tmem: enable Xen
tmem shim to be built/loaded as a module") allows the tmem module
to be loaded any time. For this work the frontswap API had to
be able to asynchronously to call tmem_frontswap_init before
or after the swap image had been set. That was added in git
commit 905cd0e1bf
("mm: frontswap: lazy initialization to allow tmem backends to build/run as modules").
Which means we could do this (The common case):
modprobe tmem [so calls frontswap_register_ops, no ->init]
modifies tmem_frontswap_poolid = -1
swapon /dev/xvda1 [__frontswap_init, calls -> init, tmem_frontswap_poolid is
< 0 so tmem hypercall done]
Or the failing one:
swapon /dev/xvda1 [calls __frontswap_init, sets the need_init bitmap]
modprobe tmem [calls frontswap_register_ops, -->init calls, finds out
tmem_frontswap_poolid is 0, does not make a hypercall.
Later in the module_init, sets tmem_frontswap_poolid=-1]
Which meant that in the failing case we would not call the hypercall
to initialize the pool and never be able to make any frontswap
backend calls.
Moving the frontswap_register_ops after setting the tmem_frontswap_poolid
fixes it.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
In
commit 53d3b4d777
Author: Egbert Eich <eich@suse.de>
Date: Tue Jun 4 17:13:21 2013 +0200
drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC
Egbert Eich fixed a long-standing bug where we simply used a
non-working i2c controller to read the EDID for SDVO-LVDS panels.
Unfortunately some machines seem to not be able to cope with the mode
provided in the EDID. Specifically they seem to not be able to cope
with a 4x pixel mutliplier instead of a 2x one, which seems to have
been worked around by slightly changing the panels native mode in the
VBT so that the dotclock is just barely above 50MHz.
Since it took forever to notice the breakage it's fairly safe to
assume that at least for SDVO-LVDS panels the VBT contains fairly sane
data. So just switch around the order and use VBT modes first.
v2: Also add EDID modes just in case, and spell Egbert correctly.
v3: Elaborate a bit more about what's going on on Chris' machine.
Cc: Egbert Eich <eich@suse.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65524
Cc: stable@vger.kernel.org
Reported-and-tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
sdvo->hotplug_active is initialised during intel_sdvo_setup_outputs(),
and so we never enabled the hotplug interrupts on SDVO as we were
checking too early.
This regression has been introduced somewhere in the hpd rework for
the storm detection and handling starting with
commit 1d843f9de4
Author: Egbert Eich <eich@suse.de>
Date: Mon Feb 25 12:06:49 2013 -0500
DRM/I915: Add enum hpd_pin to intel_encoder.
and the follow-up patches to use the new encoder->hpd_pin variable for
the different irq setup functions.
The problem is that encoder->hpd_pin was set up _before_ the output
setup was done and so before we could assess the hotplug capabilities
of the outputs on an sdvo encoder.
Reported-by: Alex Fiestas <afiestas@kde.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58405
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add regression note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A broken conditional would lead to SDVOC waiting upon hotplug events on
SDVOB - and so miss all activity on its SDVO port.
This regression has been introduced in
commit 1d843f9de4
Author: Egbert Eich <eich@suse.de>
Date: Mon Feb 25 12:06:49 2013 -0500
DRM/I915: Add enum hpd_pin to intel_encoder.
References: https://bugs.freedesktop.org/show_bug.cgi?id=58405
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add regression note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull powerpc fixes from Benjamin Herrenschmidt:
"This is purely regressions (though not all recent ones) or stable
material"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Partial revert of "Context switch more PMU related SPRs"
powerpc/perf: Fix deadlock caused by calling printk() in PMU exception
powerpc/hw_breakpoints: Add DABRX cpu feature to fix 32-bit regression
powerpc/power8: Update denormalization handler
powerpc/pseries: Simplify denormalization handler
powerpc/power8: Fix oprofile and perf
powerpc/eeh: Don't check RTAS token to get PE addr
powerpc/pci: Check the bus address instead of resource address in pcibios_fixup_resources
Pull ARM fixes from Russell King:
"The biggest two fixes are fixing a compilation error with the
decompressor, and a problem with our __my_cpu_offset implementation.
Other changes are very trivial and small, which seems to be the way
for most -rc stuff."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7747/1: pcpu: ensure __my_cpu_offset cannot be re-ordered across barrier()
ARM: 7750/1: update legacy CPU ID in decompressor cache support jump table
ARM: 7743/1: compressed/head.S: work around new binutils warning
ARM: 7742/1: topology: export cpu_topology
ARM: 7737/1: fix kernel decompressor compilation error with CONFIG_DEBUG_SEMIHOSTING
In commit 59affcd I added context switching of more PMU SPRs, because
they are potentially exposed to userspace on Power8. However despite me
being a smart arse in the commit message it's actually not correct. In
particular it interacts badly with a global perf record.
We will have to do something more complicated, but that will have to
wait for 3.11.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
In commit bc09c21 "Fix finding overflowed PMC in interrupt" we added
a printk() to the PMU exception handler. Unfortunately that is not safe.
The problem is that the PMU exception may run even when interrupts are
soft disabled, aka NMI context. We do this so that we can profile parts
of the kernel that have interrupts soft-disabled.
But by calling printk() from the exception handler, we can potentially
deadlock in the printk code on logbuf_lock, eg:
[c00000038ba575c0] c000000000081928 .vprintk_emit+0xa8/0x540
[c00000038ba576a0] c0000000007bcde8 .printk+0x48/0x58
[c00000038ba57710] c000000000076504 .perf_event_interrupt+0x2d4/0x490
[c00000038ba57810] c00000000001f6f8 .performance_monitor_exception+0x48/0x60
[c00000038ba57880] c0000000000032cc performance_monitor_common+0x14c/0x180
--- Exception: f01 (Performance Monitor) at c0000000007b25d4 ._raw_spin_lock_irq
+0x64/0xc0
[c00000038ba57bf0] c00000000007ed90 .devkmsg_read+0xd0/0x5a0
[c00000038ba57d00] c0000000001c2934 .vfs_read+0xc4/0x1e0
[c00000038ba57d90] c0000000001c2cd8 .SyS_read+0x58/0xd0
[c00000038ba57e30] c000000000009d54 syscall_exit+0x0/0x98
--- Exception: c01 (System Call) at 00001fffffbf6f7c
SP (3ffff6d4de10) is in userspace
Fix it by making sure we only call printk() when we are not in NMI
context.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: <stable@vger.kernel.org> # 3.9
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
When introducing support for DABRX in 4474ef0, we broke older 32-bit CPUs
that don't have that register.
Some CPUs have a DABR but not DABRX. Configuration are:
- No 32bit CPUs have DABRX but some have DABR.
- POWER4+ and below have the DABR but no DABRX.
- 970 and POWER5 and above have DABR and DABRX.
- POWER8 has DAWR, hence no DABRX.
This introduces CPU_FTR_DABRX and sets it on appropriate CPUs. We use
the top 64 bits for CPU FTR bits since only 64 bit CPUs have this.
Processors that don't have the DABRX will still work as they will fall
back to software filtering these breakpoints via perf_exclude_event().
Signed-off-by: Michael Neuling <mikey@neuling.org>
Reported-by: "Gorelik, Jacob (335F)" <jacob.gorelik@jpl.nasa.gov>
cc: stable@vger.kernel.org (v3.9 only)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
POWER8 can take a denormalisation exception on any VSX registers.
This does the extra 32 VSX registers we don't currently handle.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The following simplifies the denorm code by using macros to generate the long
stream of almost identical instructions.
This patch results in no changes to the output binary, but removes a lot of
lines of code.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
In 2ac6f42 powerpc/cputable: Fix oprofile_cpu_type on power8
we broke all power8 hw events.
This reverts this change and uses oprofile_type instead. Perf now works
on POWER8 again and oprofile will revert to using timers on POWER8.
Kudos to mpe this fix.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
RTAS token "ibm,get-config-addr-info" or ibm,get-config-addr-info2"
are used to retrieve the PE address according to PCI address, which
made up of domain/bus/slot/function. If we don't have those 2 tokens,
the domain/bus/slot/function would be used as the address for EEH
RTAS operations. Some older f/w might not have those 2 tokens and
that blocks the EEH functionality to be initialized. It was introduced
by commit e2af155c ("powerpc/eeh: pseries platform EEH initialization").
The patch skips the check on those 2 tokens so we can bring up EEH
functionality successfully. And domain/bus/slot/function will be
used as address for EEH RTAS operations.
Cc: <stable@vger.kernel.org> # v3.4+
Reported-by: Robert Knight <knight@princeton.edu>
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Tested-by: Robert Knight <knight@princeton.edu>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
If a BAR has the value of 0, we would assume that it is unset yet and
then mark the resource as unset and would reassign it later. But after
commit 6c5705fe (powerpc/PCI: get rid of device resource fixups)
the pcibios_fixup_resources is invoked after the bus address was
translated to linux resource. So the value of res->start is resource
address. And since the resource and bus address may be different, we
should translate it to the bus address before doing the check.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Improve chip detection in ADM1021 driver to avoid misdetections
This is not a critical patch, but one we'll want to have applied to
-stable, since the misdetection especially of LM84 has been causing
trouble for quite some time."
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (adm1021) Strengthen chip detection for ADM1021, LM84 and MAX1617
The internal crtc cursor gem object pointer was never set/updated since
it was required to be set in the first place.
Fixing this will make the pin/unpin count match and prevent cursor
objects from leaking when userspace drops all references to it. Also
make sure we drop the gem obj reference on failure.
This patch only affects Cedarview chips.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
The internal crtc cursor gem object pointer was never set/updated since
it was required to be set in the first place.
Fixing this will make the pin/unpin count match and prevent cursor
objects from leaking when userspace drops all references to it. Also
make sure we drop the gem obj reference on failure.
This patch only affects Poulsbo chips.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Cedarview.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Poulsbo.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Pull timer fixes from Thomas Gleixner:
- Trivial: unused variable removal
- Posix-timers: Add the clock ID to the new proc interface to make it
useful. The interface is new and should be functional when we reach
the final 3.10 release.
- Cure a false positive warning in the tick code introduced by the
overhaul in 3.10
- Fix for a persistent clock detection regression introduced in this
cycle
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Correct run-time detection of persistent_clock.
ntp: Remove unused variable flags in __hardpps
posix-timers: Show clock ID in proc file
tick: Cure broadcast false positive pending bit warning
This branch contains a set of straight forward bug fixes to the
irqdomain code and to a couple of drivers that make use of it.
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Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux
Pull irqdomain bug fixes from Grant Likely:
"This branch contains a set of straight forward bug fixes to the
irqdomain code and to a couple of drivers that make use of it."
* tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux:
irqchip: Return -EPERM for reserved IRQs
irqdomain: document the simple domain first_irq
kernel/irq/irqdomain.c: before use 'irq_data', need check it whether valid.
irqdomain: export irq_domain_add_simple
The irqdomain core will report a log message for any attempted map call
that fails unless the error code is -EPERM. This patch changes the
Versatile irq controller drivers to use -EPERM because it is normal for
a subset of the IRQ inputs to be marked as reserved on the various
Versatile platforms.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The first_irq needs to be zero to get a linear domain and that
comes with special semantics. We want to simplify this going
forward but some documentation never hurts.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Since irq_data may be NULL, if so, we WARN_ON(), and continue, 'hwirq'
which related with 'irq_data' has to initialize later, or it will cause
issue.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
All other irq_domain_add_* functions are exported already, and apparently
this one got left out by mistake, which causes build errors for ARM
allmodconfig kernels:
ERROR: "irq_domain_add_simple" [drivers/gpio/gpio-rcar.ko] undefined!
ERROR: "irq_domain_add_simple" [drivers/gpio/gpio-em.ko] undefined!
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Another week, another batch of fixes for arm-soc platforms.
Nothing controversial here, a handful of fixes for regressions and/or
serious problems across several of the platforms. Things are slowing
down nicely on fix rates for 3.10.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another week, another batch of fixes for arm-soc platforms.
Nothing controversial here, a handful of fixes for regressions and/or
serious problems across several of the platforms. Things are slowing
down nicely on fix rates for 3.10"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
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: bcm2835: override the HW UART periphid
ARM: mvebu: Fix bug in coherency fabric low level init function
ARM: Kirkwood: TS219: Fix crash by double PCIe instantiation
ARM: ux500: Provide supplies for AUX1, AUX2 and AUX3
ARM: ux500: Only configure wake-up reasons on ux500 based platforms
ARM: dts: imx: fix clocks for cspi
ARM i.MX6q: fix for ldb_di_sels
Pull MIPS fixes from Ralf Baechle:
"MIPS fixes across the field. The only area that's standing out is the
exception handling which received it's dose of breakage as part of the
microMIPS patchset"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: ralink: add missing SZ_1M multiplier
MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf.
MIPS: OCTEON: Improve _machine_halt implementation.
MIPS: rtlx: Fix implicit declaration of function set_vi_handler()
MIPS: Trap exception handling fixes
MIPS: Quit exposing Kconfig symbols in uapi headers.
MIPS: Remove duplicate definition of check_for_high_segbits.
Pull m68knommu fix from Greg Ungerer:
"A single fix for compilation breakage to many of the ColdFire CPU
targets"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: only use local gpio_request_one if not using GPIOLIB
Pull drm fixes from Dave Airlie:
"Regression fixers for the big 3:
- nouveau: hdmi audio, dac load detect, s/r regressions fixed
- radeon: long standing system hang fixed, hdmi audio and rs780 fast
fb fixes
- intel: one old regression, a WARN removal, and a stop X dying fix
Otherwise one mgag200 fix, a couple of arm build fixes, and a core use
after free fix."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nv50/kms: use dac loadval from vbios, where it's available
drm/nv50/disp: force dac power state during load detect
drm/nv50-nv84/fifo: fix resume regression introduced by playlist race fix
drm/nv84/disp: Fix HDMI audio regression
drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.
drm/radeon: don't allow audio on DCE6
drm/radeon: Use direct mapping for fast fb access on RS780/RS880 (v2)
radeon: Fix system hang issue when using KMS with older cards
drm/i915: no lvds quirk for hp t5740
drm/i915: Quirk the pipe A quirk in the modeset state checker
drm/i915: Fix spurious -EIO/SIGBUS on wedged gpus
drm/mgag200: Add missing write to index before accessing data register
drm/nouveau: use mdelay instead of large udelay constants
drm/tilcd: select BACKLIGHT_LCD_SUPPORT
drm: fix a use-after-free when GPU acceleration disabled
Pull slave-dmaengine fixes from Vinod Koul:
"Fix from Andy is for dmatest regression reported by Will and Rabin has
fixed runtime ref counting for st_dma40"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmatest: do not allow to interrupt ongoing tests
dmaengine: ste_dma40: fix pm runtime ref counting
The first two fix the case where full RCU debugging is enabled, enabling
function tracing causes a live lock of the system. This is due to the added
debug checks in rcu_dereference_raw() that is used by the function tracer.
These checks are also traced by the function tracer as well as cause enough
overhead to the function tracer to slow down the system enough that
the time to finish an interrupt can take longer than when the next
interrupt is triggered, causing a live lock from the timer interrupt.
Talking this over with Paul McKenney, we came up with a fix that adds
a new rcu_dereference_raw_notrace() that does not perform these added checks,
and let the function tracer use that.
The third commit fixes a failed compile when branch tracing is enabled,
due to the conversion of the trace_test_buffer() selftest that the
branch trace wasn't converted for.
The forth patch fixes a bug caught by the RCU lockdep code where a
rcu_read_lock() is performed when rcu is disabled (either going to
or from idle, or user space). This happened on the irqsoff tracer
as it calls task_uid(). The fix here was to use current_uid() when
possible that doesn't use rcu locking. Which luckily, is always used
when irqsoff calls this code.
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Merge tag 'trace-fixes-v3.10-rc3-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"This contains 4 fixes.
The first two fix the case where full RCU debugging is enabled,
enabling function tracing causes a live lock of the system. This is
due to the added debug checks in rcu_dereference_raw() that is used by
the function tracer. These checks are also traced by the function
tracer as well as cause enough overhead to the function tracer to slow
down the system enough that the time to finish an interrupt can take
longer than when the next interrupt is triggered, causing a live lock
from the timer interrupt.
Talking this over with Paul McKenney, we came up with a fix that adds
a new rcu_dereference_raw_notrace() that does not perform these added
checks, and let the function tracer use that.
The third commit fixes a failed compile when branch tracing is
enabled, due to the conversion of the trace_test_buffer() selftest
that the branch trace wasn't converted for.
The forth patch fixes a bug caught by the RCU lockdep code where a
rcu_read_lock() is performed when rcu is disabled (either going to or
from idle, or user space). This happened on the irqsoff tracer as it
calls task_uid(). The fix here was to use current_uid() when possible
that doesn't use rcu locking. Which luckily, is always used when
irqsoff calls this code."
* tag 'trace-fixes-v3.10-rc3-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Use current_uid() for critical time tracing
tracing: Fix bad parameter passed in branch selftest
ftrace: Use the rcu _notrace variants for rcu_dereference_raw() and friends
rcu: Add _notrace variation of rcu_dereference_raw() and hlist_for_each_entry_rcu()
Commit 9f29ab11dd ("ACPI / scan: do not match drivers against objects
having scan handlers") introduced a boot regression on Tony's ia64 HP
rx2600. Tony says:
"It panics with the message:
Kernel panic - not syncing: Unable to find SBA IOMMU: Try a generic or DIG kernel
[...] my problem comes from arch/ia64/hp/common/sba_iommu.c
where the code in sba_init() says:
acpi_bus_register_driver(&acpi_sba_ioc_driver);
if (!ioc_list) {
but because of this change we never managed to call ioc_init()
so ioc_list doesn't get set up, and we die."
Revert it to avoid this breakage and we'll fix the problem it attempted
to address later.
Reported-by: Tony Luck <tony.luck@gmail.com>
Cc: 3.9+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- 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.
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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
Signed-off-by: Olof Johansson <olof@lixom.net>
- 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.
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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
Signed-off-by: Olof Johansson <olof@lixom.net>
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>
Alex Deucher