Paulo Zanoni [Wed, 24 Oct 2012 18:06:19 +0000 (16:06 -0200)]
drm/i915: convert DDI_FUNC_CTL to transcoder
Because there's one instance of the register per CPU transcoder and
not per CPU pipe. This is another register that appeared for the first
time on Haswell, and even though its Haswell name is
PIPE_DDI_FUNC_CTL, it will be renamed to TRANS_DDI_FUNC_CTL, so let's
just use the new naming scheme before it confuses more people.
Notice that there's a big improvement on intel_ddi_get_hw_state due to
the new TRANSCODER_EDP.
V2: Also rename the register to TRANS_DDI_FUNC_CTL as suggested by
Damien Lespiau.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Tue, 23 Oct 2012 20:29:56 +0000 (18:29 -0200)]
drm/i915: convert PIPE_CLK_SEL to transcoder
This register appeared in Haswell. It does not have an EDP version
because the EDP transcoder is always tied to the DDIA clock. Notice
that if we call PIPE_CLK_SEL(pipe) when pipe is PIPE_A and transcoder
is TRANSCODER_EDP we might introduce a bug, that's why this is a
transcoder register even though it does not have an EDP version.
Even though Haswell names this register PIPE_CLK_SEL, it will be
renamed to TRANS_CLK_SEL in the future, so let's just start using the
real name that makes more sense and avoids misusage.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Wed, 24 Oct 2012 17:59:34 +0000 (15:59 -0200)]
drm/i915: add TRANSCODER_EDP
Before Haswell we used to have the CPU pipes and the PCH transcoders.
We had the same amount of pipes and transcoders, and there was a 1:1
mapping between them. After Haswell what we used to call CPU pipe was
split into CPU pipe and CPU transcoder. So now we have 3 CPU pipes (A,
B and C), 4 CPU transcoders (A, B, C and EDP) and 1 PCH transcoder
(only used for VGA).
For all the outputs except for EDP we have an 1:1 mapping on the CPU
pipes and CPU transcoders, so if you're using CPU pipe A you have to
use CPU transcoder A. When have an eDP output you have to use
transcoder EDP and you can attach this CPU transcoder to any of the 3
CPU pipes. When using VGA you need to select a pair of matching CPU
pipes/transcoders (A/A, B/B, C/C) and you also need to enable/use the
PCH transcoder.
For now we're just creating the cpu_transcoder definitions and setting
cpu_transcoder to TRANSCODER_EDP on DDI eDP code, but none of the
registers was ported to use transcoder instead of pipe. The goal is to
keep the code backwards-compatible since on all cases except when
using eDP we must have pipe == cpu_transcoder.
V2: Comment the haswell_crtc_off chunk, suggested by Damien Lespiau
and Daniel Vetter.
We currently need the haswell_crtc_off chunk because TRANSCODER_EDP
can be used by any CRTC, so when you stop using it you have to stop
saying you're using it, otherwise you may have at some point 2 CRTCs
claiming they're using TRANSCODER_EDP (a disabled CRTC and an enabled
one), then the HW state readout code will get completely confused.
In other words:
Imagine the following case:
xrandr --output eDP1 --auto --crtc 0
xrandr --output eDP1 --off
xrandr --output eDP1 --auto --crtc 2
After the last command you could get a "pipe A assertion failure
(expected off, current on)" because CRTC 0 still claims it's using
TRANSCODER_EDP, so the HW state readout function will read it
(through PIPECONF) and expect it to be off, when it's actually on
because it's being used by CRTC 2.
So when we make "intel_crtc->cpu_transcoder = intel_crtc->pipe" we
make sure we're pointing to our own original CRTC which is certainly
not used by any other CRTC.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Tue, 23 Oct 2012 20:29:54 +0000 (18:29 -0200)]
drm/i915: don't call Haswell PCH code when we can't or don't need
On Ironlake we have one PCH transcoder and FDI per pipe, so we know
that if ironlake_crtc_driving_pch returns false we can disable the PCH
transcoder and we also know that when we disable the crtc we can also
disable the PCH transcoder.
On Haswell there is only 1 PCH transcoder and FDI and they can be used
by any CRTC. So if for one specific crtc haswell_crtc_driving_pch
returns false we can't assert anything about the state of the PCH
transcoder or the FDI link without checking if any other CRTC is using
the PCH.
So on this commit remove the "assert_fdi_{t,r}x_disabled" form
haswell_crtc_enable and also only disable FDI and the PCH transcoder
if the port being disabled was actually a PCH port (we only have one
port using PCH: the VGA port).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Thu, 25 Oct 2012 12:37:43 +0000 (10:37 -0200)]
drm/i915: simplify intel_crtc_driving_pch
By forking Ironlake and Haswell functions. The only callers are
{ironlake,haswell}_crtc_enable anyway, and this way we won't need to
add other checks on the Haswell version for the next gens.
V2: Even simpler, as pointed by Jani Nikula.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
These functions were forked from their Ironlake versions, so now fix
the gen checks to reflect the fact that they will only run on Haswell.
It is worth noticing that we are not considering IBX/CPT possible on
Haswell anymore. So far on Haswell enablement we kept trying to still
consider IBX/CPT as a possibility with a Haswell CPU, but this was
never tested, I really doubt it will work with the current code and we
don't really have plans to support it. Future patches will remove the
IBX/CPT code from other Haswell functions. Notice that we still have a
WARN on haswell_crtc_mode_set in case we detect non-LPT PCH.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The last commit forked a Haswell version, so now we remove Haswell
code from these functions.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Tue, 23 Oct 2012 20:29:51 +0000 (18:29 -0200)]
drm/i915: fork a Haswell version of ironlake_crtc_{enable, disable}
The way we enable and disable the PCH on Haswell changed considerably
since now we have only one PCH transcoder, so we can't keep the same
asserts and we also can't just unconditionally disable the PCH
transcoder for non-PCH outputs. So let's fork a Haswell version.
These new functions look exactly the same as the ironlake versions.
The next patches will introduce the differences.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Sat, 20 Oct 2012 18:57:43 +0000 (20:57 +0200)]
drm/i915/eDP: compute the panel power clock divisor from the pch rawclock
We need this when the bios forgets even to set that bit up. Most seem
to do that, even when they don't set up anything else in the panel
power sequencer.
Note that on IBX the rawclk is variable according to Bspec, but
everyone is using 125MHz. The rawclk is fixed to 125MHz on CPT, but
luckily we still have the same register available. On hsw, different
variants have different clocks, hence we need to check the register.
Since other pieces are driven by the rawclock, too, keep the little
helper in a central place.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Sat, 20 Oct 2012 18:57:42 +0000 (20:57 +0200)]
drm/i915: enable/disable backlight for eDP
Like we already do for the LVDS panels. This seems to help greatly
in setting up the backlight, since the BIOS might refuse to cooperate.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
v2: Move the backlight_off call from panel_off to edp_backlight_off,
noticed by Paulo Zanoni.
Reviewed-by: Paulo Zanoni <przanoni@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Sat, 20 Oct 2012 18:57:41 +0000 (20:57 +0200)]
drm/i915: make edp panel power sequence setup more robust
3 changes:
- If a given value is unset, use the maximal limits from the eDP spec.
- Write back the new values, since otherwise the panel power sequencing
hw will not dtrt.
- Revert the early bail-out in case the register values are unset.
drm/i915: check PPS regs for sanity when using eDP
v2:
- Unlock the PP regs as the very first thing. This is a required w/a
for cpu eDP on port A, and generally a good idea.
- Fixup the panel power control port selection bits.
v3: Paulo Zanoni noticed that I've fumbled the computation of the spec
limit values. Fix them up. We've also noticed that the t8/t9 values in
the vbt/bios-programmed pp are much larger than any limits. My guess
is that this is to conceal any backlight enable/disable delays. So by
using the much shorter limits from the spec, which only concerns the
sink, we risk that we might display before the backlight is fully on,
or disable the output while the backlight still has afterglow. I've
figured I don't care too much, since this will only happen when both
the pp regs are not programmed, and the vbt tables don't contain
anything useful.
v4: Don't set the port selection bits on hsw/LPT, they don't exist any
more.
v5: Fixup spelling issues in comments, as noticed by Jesse Barnes.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Mon, 22 Oct 2012 17:19:27 +0000 (18:19 +0100)]
drm/i915: Don't try to use SPR_SCALE when we don't have a sprite scaler
Haswell does not have a scaler in the sprite pipeline anymore, so let's
ensure:
1/ We bail out of update_plate() when someone is trying to ask to
display a scaled framebuffer,
2/ We never write to the nonexistent SPR_SCALE register
v2: Smash in the fixup from Damien in the disable_plane function.
Daniel Vetter [Sat, 20 Oct 2012 19:13:05 +0000 (21:13 +0200)]
drm/i915/dp: actually nack test request
... like the comment says. No idea whether this has any effect, but
I guess it's better to not lie to the display by acking a test request
and never following through with it. This goes back to the commit that
originally introduced this code:
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Meh'ed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 18 Oct 2012 13:32:40 +0000 (15:32 +0200)]
drm: extract dp link train delay functions from radeon
This requires a few changes since that dpcd value is above the
range currently cached by radeon. I've check the dp specs, and
above 0xf there's a big gap and nothing that looks like we should
cache it while a given device is plugged in. It's also the same value
that i915.ko uses.
Hence extend the various dpcd arrays in the radeon driver, use
proper symbolic constants where applicable (one place overallocated
the dpcd array to 25 bytes). Then also drop the rd_interval cache -
radeon_dp_link_train_init re-reads the dpcd block, so the values we'll
consume in train_cr and train_ce will always be fresh.
To avoid needless diff-churn, #define the old size of dpcd as the new
one and keep it around.
v2: Alex Deucher noticed one place where I've forgotten to replace 8
with DP_RECEIVER_CAP_SIZE.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 18 Oct 2012 08:15:25 +0000 (10:15 +0200)]
drm: dp helper: extract drm_dp_clock_recovery_ok
radeon and intel use the exact same definition.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com>
v2: Kill 2 more helpers in intel_dp.c that I've missed.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:52 +0000 (14:51 +0300)]
drm/i915: Move cached EDID to intel_connector
Move the cached EDID from intel_dp and intel_lvds_connector to
intel_connector. Unify cached EDID handling for LVDS and eDP, in
preparation for adding more generic EDID caching later.
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:51 +0000 (14:51 +0300)]
drm/i915: Do not free the passed EDID in intel_connector_update_modes()
The caller, not intel_connector_update_modes(), should free the edid. This
improves the reusability of intel_connector_update_modes().
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:50 +0000 (14:51 +0300)]
drm/i915: Move the fixed mode to intel_panel
Pave the way for sharing some logic between eDP and LVDS.
Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>
CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:49 +0000 (14:51 +0300)]
drm/i915: Create generic intel_panel for LVDS and eDP
Create a generic struct intel_panel for sharing a data structure and code
between eDP and LVDS panels. Add the new struct to intel_connector so that
later on we can have generic EDID and mode reading functions with EDID
caching that transparently fallback to fixed mode when EDID is not
available.
Add intel_panel as a dummy first, and move data (such as the mentioned
fixed mode) to it in later patches.
Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>
CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Fixup tiny conflict in intel_dp_destroy.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:48 +0000 (14:51 +0300)]
drm/i915/dp: Initialize eDP fixed mode in intel_dp_init
Since we do EDID caching in intel_dp_init, we can do the fixed mode
initialization there too. This should not change the functionality apart
from initializing fixed mode earlier. Particularly retain the behaviour of
only falling back to VBT if EDID is not available to not regress
drm/i915: Only use VBT panel mode on eDP if no EDID is found
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:47 +0000 (14:51 +0300)]
drm/i915/lvds: Move some connector specific info across from the encoder
As there is 1:1 mapping between encoder and connector for the LVDS, the
goal is to simply reduce the amount of noise within the connector
functions, i.e. we split the encoder/connector for LVDS as best we can and
try to only operate on the LVDS connector from the connector funcs and the
LVDS encoder form the encoder funcs.
Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>
CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:46 +0000 (14:51 +0300)]
drm/i915: Backlight setup requires connector so pass it as parameter
Get rid of saved int_lvds_connector and int_edp_connector in
drm_i915_private.
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:45 +0000 (14:51 +0300)]
drm/i915/lvds: Move the acpi_lid_notifier from drm_i915_private to the connector
Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>
CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:44 +0000 (14:51 +0300)]
drm/i915/lvds: Introduce intel_lvds_connector
Introduce a local structure to move LVDS specific information away from the
drm_i915_private and onto the LVDS connector.
Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>
CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 19 Oct 2012 11:51:43 +0000 (14:51 +0300)]
drm/i915/lvds: Rename intel_lvds to intel_lvds_encoder
In preparation for introducing intel_lvds_connector to move some of the
LVDS specific storage away from drm_i915_private, first rename the encoder
to avoid potential confusion.
Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>
CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Mon, 22 Oct 2012 12:34:51 +0000 (14:34 +0200)]
Merge tag 'v3.7-rc2' into drm-intel-next-queued
Linux 3.7-rc2
Backmerge to solve two ugly conflicts:
- uapi. We've already added new ioctl definitions for -next. Do I need to say more?
- wc support gtt ptes. We've had to revert this for snb+ for 3.7 and
also fix a few other things in the code. Now we know how to make it
work on snb+, but to avoid losing the other fixes do the backmerge
first before re-enabling wc gtt ptes on snb+.
And a few other minor things, among them git getting confused in
intel_dp.c and seemingly causing a conflict out of nothing ...
Linus Torvalds [Sat, 20 Oct 2012 16:48:10 +0000 (09:48 -0700)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fixes from Catalin Marinas:
"Main changes:
- AArch64 Linux compilation fixes following 3.7-rc1 changes
(MODULES_USE_ELF_RELA, update_vsyscall() prototype)
- Unnecessary register setting in start_thread() (thanks to Al Viro)
- ptrace fixes"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: fix alignment padding in assembly code
arm64: ptrace: use HW_BREAKPOINT_EMPTY type for disabled breakpoints
arm64: ptrace: make structure padding explicit for debug registers
arm64: No need to set the x0-x2 registers in start_thread()
arm64: Ignore memory blocks below PHYS_OFFSET
arm64: Fix the update_vsyscall() prototype
arm64: Select MODULES_USE_ELF_RELA
arm64: Remove duplicate inclusion of mmu_context.h in smp.c
Marc Zyngier [Fri, 19 Oct 2012 16:33:27 +0000 (17:33 +0100)]
arm64: fix alignment padding in assembly code
An interesting effect of using the generic version of linkage.h
is that the padding is defined in terms of x86 NOPs, which can have
even more interesting effects when the assembly code looks like this:
ENTRY(func1)
mov x0, xzr
ENDPROC(func1)
// fall through
ENTRY(func2)
mov x0, #1
ret
ENDPROC(func2)
Admittedly, the code is not very nice. But having code from another
architecture doesn't look completely sane either.
The fix is to add arm64's version of linkage.h, which causes the insertion
of proper AArch64 NOPs.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Linus Torvalds [Sat, 20 Oct 2012 01:39:36 +0000 (18:39 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Assorted small fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf python: Properly link with libtraceevent
perf hists browser: Add back callchain folding symbol
perf tools: Fix build on sparc.
perf python: Link with libtraceevent
perf python: Initialize 'page_size' variable
tools lib traceevent: Fix missed freeing of subargs in free_arg() in filter
lib tools traceevent: Add back pevent assignment in __pevent_parse_format()
perf hists browser: Fix off-by-two bug on the first column
perf tools: Remove warnings on JIT samples for srcline sort key
perf tools: Fix segfault when using srcline sort key
perf: Require exclude_guest to use PEBS - kernel side enforcement
perf tool: Precise mode requires exclude_guest
GEN python/perf.so
gcc: error: python_ext_build/tmp//../../libtraceevent.a: No such file or directory
error: command 'gcc' failed with exit status 1
cp: cannot stat `python_ext_build/lib/perf.so': No such file or directory
make: *** [python/perf.so] Error 1
We need to propagate the TE_PATH variable to the setup.py file.
Ingo Molnar [Sat, 20 Oct 2012 00:32:56 +0000 (02:32 +0200)]
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
* The python binding needs to link with libtraceevent and to initialize
the 'page_size' variable so that mmaping works again.
* The callchain folding character that appears on the TUI just before
the overhead had disappeared due to recent changes, add it back.
* Intel PEBS in VT-x context uses the DS address as a guest linear address,
even though its programmed by the host as a host linear address. This either
results in guest memory corruption and or the hardware faulting and 'crashing'
the virtual machine. Therefore we have to disable PEBS on VT-x enter and
re-enable on VT-x exit, enforcing a strict exclude_guest.
Kernel side enforcement fix by Peter Zijlstra, tooling side fix by David Ahern.
* Fix build on sparc due to UAPI, fix from David Miller.
* Fixes for the srclike sort key for unresolved symbols and when processing
samples in JITted code, where we don't have an ELF file, just an special
symbol table, fixes from Namhyung Kim.
* Fix some leaks in libtraceevent, from Steven Rostedt.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Sat, 20 Oct 2012 00:32:37 +0000 (17:32 -0700)]
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:
"A set of fixes and some minor cleanups for -rc2:
- A series from Arnd that fixes warnings in drivers and other code
included by ARM defconfigs. Most have been acked by corresponding
maintainers (and seem quite hard to argue not picking up anyway in
the few exception cases).
- A few misc patches from the list for integrator/vt8500/i.MX
- A batch of fixes to OMAP platforms, fixing:
- boot problems on beaglebone,
- regression fixes for local timers
- clockdomain locking fixes
- a few boot/sparse warnings
- For Tegra:
- Clock rate calculation overflow fix
- Revert a change that removed timer clocks and a fix for symbol
name clashes
- For Renesas:
- IO accessor / annotation cleanups to remove warnings
- For Kirkwood/Dove/mvebu:
- Fixes for device trees for Dove (some minor cleanups, some fixes)
- Fixes for the mvebu gpio driver
- Fix build problem for Feroceon due to missing ifdefs
- Fix lsxl DTS files"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
ARM: kirkwood: fix buttons on lsxl boards
ARM: kirkwood: fix LEDs names for lsxl boards
ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2
gpio: mvebu: Add missing breaks in mvebu_gpio_irq_set_type
ARM: dove: Add crypto engine to DT
ARM: dove: Remove watchdog from DT
ARM: dove: Restructure SoC device tree descriptor
ARM: dove: Fix clock names of sata and gbe
ARM: dove: Fix tauros2 device tree init
ARM: dove: Add pcie clock support
ARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory
ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable
ARM: s3c: mark s3c2440_clk_add as __init_refok
spi/s3c64xx: use correct dma_transfer_direction type
ARM: OMAP4: devices: fixup OMAP4 DMIC platform device error message
ARM: OMAP2+: clock data: Add dev-id for the omap-gpmc dummy fck
ARM: OMAP: resolve sparse warning concerning debug_card_init()
ARM: OMAP4: Fix twd_local_timer_register regression
ARM: tegra: add tegra_timer clock
ARM: tegra: rename tegra system timer
...
David Howells [Sat, 20 Oct 2012 00:19:29 +0000 (01:19 +0100)]
MODSIGN: Move the magic string to the end of a module and eliminate the search
Emit the magic string that indicates a module has a signature after the
signature data instead of before it. This allows module_sig_check() to
be made simpler and faster by the elimination of the search for the
magic string. Instead we just need to do a single memcmp().
This works because at the end of the signature data there is the
fixed-length signature information block. This block then falls
immediately prior to the magic number.
From the contents of the information block, it is trivial to calculate
the size of the signature data and thus the size of the actual module
data.
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 19 Oct 2012 22:56:37 +0000 (23:56 +0100)]
MODSIGN: perlify sign-file and merge in x509keyid
Turn sign-file into perl and merge in x509keyid. The latter doesn't
need to be a separate script as it doesn't actually need to work out the
SHA1 sum of the X.509 certificate itself, since it can get that from the
X.509 certificate.
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Damien Lespiau [Fri, 19 Oct 2012 16:55:42 +0000 (17:55 +0100)]
drm/i915: Program DSPCLK_GATE_D only once on Ironlake
With the consolidated registers, it appears that we're setting the same
bis several times. Let's just collect the bits we want to set and program
it once.
v2: More cleanup. Also program 0x42004 and 0x45000 for FBC on non
mobile platforms (Paulo Zanoni)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Undo the functional change as discussed on irc.] Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Olof Johansson [Fri, 19 Oct 2012 22:40:18 +0000 (15:40 -0700)]
Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes
A collection of warning fixes on non-ARM code from Arnd Bergmann:
* 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: s3c: mark s3c2440_clk_add as __init_refok
spi/s3c64xx: use correct dma_transfer_direction type
pcmcia: sharpsl: don't discard sharpsl_pcmcia_ops
USB: EHCI: mark ehci_orion_conf_mbus_windows __devinit
mm/slob: use min_t() to compare ARCH_SLAB_MINALIGN
SCSI: ARM: make fas216_dumpinfo function conditional
SCSI: ARM: ncr5380/oak uses no interrupts
/proc/<pid>/numa_maps scans vma and show mempolicy under
mmap_sem. It sometimes accesses task->mempolicy which can
be freed without mmap_sem and numa_maps can show some
garbage while scanning.
This patch tries to take reference count of task->mempolicy at reading
numa_maps before calling get_vma_policy(). By this, task->mempolicy
will not be freed until numa_maps reaches its end.
V2->v3
- updated comments to be more verbose.
- removed task_lock() in numa_maps code.
V1->V2
- access task->mempolicy only once and remember it. Becase kernel/exit.c
can overwrite it.
Linus Torvalds [Fri, 19 Oct 2012 21:15:16 +0000 (14:15 -0700)]
Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull miscellaneous x86 fixes from Peter Anvin:
"The biggest ones are fixing suspend/resume breakage on 32 bits, and an
interrim fix for mapping over holes that allows AMD kit with more than
1 TB.
A final solution for the latter is in the works, but involves some
fairly invasive changes that will probably mean it will only be
appropriate for 3.8."
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, MCE: Remove bios_cmci_threshold sysfs attribute
x86, amd, mce: Avoid NULL pointer reference on CPU northbridge lookup
x86: Exclude E820_RESERVED regions and memory holes above 4 GB from direct mapping.
x86/cache_info: Use ARRAY_SIZE() in amd_l3_attrs()
x86/reboot: Remove quirk entry for SBC FITPC
x86, suspend: Correct the restore of CR4, EFER; skip computing EFLAGS.ID
Linus Torvalds [Fri, 19 Oct 2012 21:07:55 +0000 (14:07 -0700)]
Merge branch 'akpm' (Fixes from Andrew)
Merge misc fixes from Andrew Morton:
"Seven fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (7 patches)
lib/dma-debug.c: fix __hash_bucket_find()
mm: compaction: correct the nr_strict va isolated check for CMA
firmware/memmap: avoid type conflicts with the generic memmap_init()
pidns: remove recursion from free_pid_ns()
drivers/video/backlight/lm3639_bl.c: return proper error in lm3639_bled_mode_store() error paths
kernel/sys.c: fix stack memory content leak via UNAME26
linux/coredump.h needs asm/siginfo.h
Ming Lei [Fri, 19 Oct 2012 20:57:01 +0000 (13:57 -0700)]
lib/dma-debug.c: fix __hash_bucket_find()
If there is only one match, the unique matched entry should be returned.
Without the fix, the upcoming dma debug interfaces ("dma-debug: new
interfaces to debug dma mapping errors") can't work reliably because
only device and dma_addr are passed to dma_mapping_error().
Signed-off-by: Ming Lei <ming.lei@canonical.com> Reported-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Joerg Roedel <joerg.roedel@amd.com> Tested-by: Shuah Khan <shuah.khan@hp.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Jakub Kicinski <kubakici@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Fri, 19 Oct 2012 20:56:57 +0000 (13:56 -0700)]
mm: compaction: correct the nr_strict va isolated check for CMA
Thierry reported that the "iron out" patch for isolate_freepages_block()
had problems due to the strict check being too strict with "mm:
compaction: Iron out isolate_freepages_block() and
isolate_freepages_range() -fix1". It's possible that more pages than
necessary are isolated but the check still fails and I missed that this
fix was not picked up before RC1. This same problem has been identified
in 3.7-RC1 by Tony Prisk and should be addressed by the following patch.
Signed-off-by: Mel Gorman <mgorman@suse.de> Tested-by: Tony Prisk <linux@prisktech.co.nz> Reported-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Richard Davies <richard@arachsys.com> Cc: Shaohua Li <shli@kernel.org> Cc: Avi Kivity <avi@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fengguang Wu [Fri, 19 Oct 2012 20:56:55 +0000 (13:56 -0700)]
firmware/memmap: avoid type conflicts with the generic memmap_init()
Fix this build error:
drivers/firmware/memmap.c:240:19: error: conflicting types for 'memmap_init'
arch/ia64/include/asm/pgtable.h:565:17: note: previous declaration of 'memmap_init' was here
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Bernhard Walle <bwalle@suse.de> Cc: Glauber Costa <glommer@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
thus if there was a huge nesting of namespaces the userspace may trigger
avalanche calling of free_pid_ns leading to kernel stack exhausting and a
panic eventually.
This patch turns the recursion into an iterative loop.
Based on a patch by Andrew Vagin.
[akpm@linux-foundation.org: export put_pid_ns() to modules] Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Andrew Vagin <avagin@openvz.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Fri, 19 Oct 2012 20:56:52 +0000 (13:56 -0700)]
drivers/video/backlight/lm3639_bl.c: return proper error in lm3639_bled_mode_store() error paths
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kees Cook [Fri, 19 Oct 2012 20:56:51 +0000 (13:56 -0700)]
kernel/sys.c: fix stack memory content leak via UNAME26
Calling uname() with the UNAME26 personality set allows a leak of kernel
stack contents. This fixes it by defensively calculating the length of
copy_to_user() call, making the len argument unsigned, and initializing
the stack buffer to zero (now technically unneeded, but hey, overkill).
CVE-2012-0957
Reported-by: PaX Team <pageexec@freemail.hu> Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: PaX Team <pageexec@freemail.hu> Cc: Brad Spengler <spender@grsecurity.net> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 5ab1c309b344 ("coredump: pass siginfo_t* to do_coredump() and
below, not merely signr") added siginfo_t to linux/coredump.h but forgot
to include asm/siginfo.h. This breaks the build for UML/i386. (And any
other arch where asm/siginfo.h is not magically preincluded...)
In file included from arch/x86/um/elfcore.c:2:0: include/linux/coredump.h:15:25: error: unknown type name 'siginfo_t'
make[1]: *** [arch/x86/um/elfcore.o] Error 1
Signed-off-by: Richard Weinberger <richard@nod.at> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Amerigo Wang <amwang@redhat.com> Cc: "Jonathan M. Foote" <jmfoote@cert.org> Cc: Roland McGrath <roland@hack.frob.com> Cc: Pedro Alves <palves@redhat.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 19 Oct 2012 20:37:57 +0000 (13:37 -0700)]
remap_file_pages: correctly handle the case of a NULL vm_ops pointer
In commit 0b173bc4daa8 ("mm: kill vma flag VM_CAN_NONLINEAR") we
replaced the VM_CAN_NONLINEAR test with checking whether the mapping has
a '->remap_pages()' vm operation, but there is no guarantee that there
it even has a vm_ops pointer at all.
Add the appropriate test for NULL vm_ops.
Reported-by: Sasha Levin <levinsasha928@gmail.com> Cc: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 19 Oct 2012 19:52:06 +0000 (12:52 -0700)]
Merge tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux
Pull Xtensa patchset from Chris Zankel:
"These are all limited to the xtensa subtree and include some important
changes (adding long missing system calls for newer libc versions and
other fixes) and the UAPI changes"
* tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux:
xtensa: add missing system calls to the syscall table
xtensa: minor compiler warning fix
xtensa: Use Kbuild infrastructure to handle asm-generic headers
UAPI: (Scripted) Disintegrate arch/xtensa/include/asm
xtensa: fix unaligned usermode access
xtensa: reorganize SR referencing
xtensa: fix boot parameters parsing
xtensa: fix missing return in do_page_fault for SIGBUS case
xtensa: copy_thread with CLONE_VM must not copy live parent AR windows
xtensa: fix memmove(), bcopy(), and memcpy().
xtensa: ISS: fix rs_put_char
xtensa: ISS: fix specific simcalls
Linus Torvalds [Fri, 19 Oct 2012 19:43:19 +0000 (12:43 -0700)]
kbuild: Fix module signature generation
Rusty had clearly not actually tested his module signing changes that I
(trustingly) applied as commit e2a666d52b48 ("kbuild: sign the modules
at install time"). That commit had multiple bugs:
- using "${#VARIABLE}" to get the number of characters in a shell
variable may look clever, but it's locale-dependent: it returns the
number of *characters*, not bytes. And we do need bytes.
So don't use "${#..}" expansion, do the stupid "wc -c" thing instead
(where "c" stands for "bytes", not "characters", despite the letter.
- Rusty had confused "siglen" and "signerlen", and his conversion
didn't set "signerlen" at all, and incorrectly set "siglen" to the
size of the signer, not the size of the signature.
End result: the modified sign-file script did create something that
superficially *looked* like a signature, but didn't actually work at
all, and would fail the signature check. Oops.
Tssk, tssk, Rusty.
But Rusty was definitely right that this whole thing should be rewritten
in perl by somebody who has the perl-fu to do so. That is not me,
though - I'm just doing an emergency fix for the shell script.
Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 19 Oct 2012 18:54:21 +0000 (11:54 -0700)]
xen: Fix annoying compile-time warning
Commit cb6b6df111e4 ("xen/pv-on-hvm kexec: add quirk for Xen 3.4 and
shutdown watches.") added the xen_strict_xenbus_quirk() function with an
old K&R-style declaration without proper typing, causing gcc to rightly
complain:
drivers/xen/xenbus/xenbus_xs.c:628:13: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
because we really don't live in caves using stone-age tools any more,
and the kernel has always used properly typed ANSI C function
declarations.
So if a function doesn't take arguments, we tell the compiler so
explicitly by adding the proper "void" in the prototype.
I'm sure there are tons of other examples of this kind of stuff in the
tree, but this is the one that hits my workstation config, so..
Linus Torvalds [Fri, 19 Oct 2012 18:48:32 +0000 (11:48 -0700)]
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Drop some leftover dependencies on CONFIG_EXPERIMENTAL, and add
support for Intel Atom CE4110/4150/4170."
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (coretemp) Add support for Atom CE4110/4150/4170
Documentation/hwmon: remove CONFIG_EXPERIMENTAL
hwmon: (pmbus) remove CONFIG_EXPERIMENTAL
We have a VHRUNIT_CLOCK_GATE_DISABLE define for the pre-ILK DSPCLK_GATE_D.
Even if the same bit is used in ILK_DSPCLK_GATE_D, other bits in the
register change, so I went with re-defining it, well more precisely rename
IVB_VRHUNIT_CLK_GATE, which is not specific to IVB+. So:
This commit is only a renaming commit, further commits will clean up the
logic.
v2: Rename bit 5 and 7 to _ENABLE as setting them to 1 enables clock
gating on their respective units, contrary to all of the other bits
(Paulo Zanoni)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Linus Torvalds [Fri, 19 Oct 2012 18:28:59 +0000 (11:28 -0700)]
Merge tag 'tty-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY fixes from Greg Kroah-Hartman:
"Here are some tty and serial driver fixes for your 3.7-rc1 tree.
Again, the UABI header file fixes, and a number of build and runtime
serial driver bugfixes that solve problems people have been reporting
(the staging driver is a tty driver, hence the fixes coming in through
this tree.)
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
staging: dgrp: check return value of alloc_tty_driver
staging: dgrp: check for NULL pointer in (un)register_proc_table
serial/8250_hp300: Missing 8250 register interface conversion bits
UAPI: (Scripted) Disintegrate include/linux/hsi
tty: serial: sccnxp: Fix bug with unterminated platform_id list
staging: serial: dgrp: Add missing #include <linux/uaccess.h>
serial: sccnxp: Allows the driver to be compiled as a module
tty: Fix bogus "callbacks suppressed" messages
net, TTY: initialize tty->driver_data before usage
Linus Torvalds [Fri, 19 Oct 2012 18:28:10 +0000 (11:28 -0700)]
Merge tag 'usb-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are the USB patches against your 3.7-rc1 tree.
There are the usual UABI header file movements, and we finally are now
able to remove the dbg() macro that is over 15 years old (that had to
wait for after some other trees got merged into yours during the big
3.7-rc1 merge window.)
Other than that, nothing major, just a number of bugfixes and new
device ids. It turns out that almost all of the usb-serial drivers
had bugs in how they were handling their internal data, leaking
memory, hence all of those fixups.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (42 commits)
USB: option: add more ZTE devices
USB: option: blacklist net interface on ZTE devices
usb: host: xhci: New system added for Compliance Mode Patch on SN65LVPE502CP
USB: io_ti: fix sysfs-attribute creation
USB: iuu_phoenix: fix sysfs-attribute creation
USB: spcp8x5: fix port-data memory leak
USB: ssu100: fix port-data memory leak
USB: ti_usb_3410_5052: fix port-data memory leak
USB: oti6858: fix port-data memory leak
USB: iuu_phoenix: fix port-data memory leak
USB: kl5kusb105: fix port-data memory leak
USB: io_ti: fix port-data memory leak
USB: keyspan_pda: fix port-data memory leak
USB: f81232: fix port-data memory leak
USB: io_edgeport: fix port-data memory leak
USB: kobil_sct: fix port-data memory leak
USB: cypress_m8: fix port-data memory leak
usb: acm: fix the computation of the number of data bits
usb: Missing dma_mask in ehci-vt8500.c when probed from device-tree
usb: Missing dma_mask in uhci-platform.c when probed from device-tree
...
Linus Torvalds [Fri, 19 Oct 2012 18:04:59 +0000 (11:04 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel
Pull hexagon updates from Richard Kuo:
"It includes the Hexagon UAPI changes from David Howells and some CR
marking changes for the transition from Code Aurora to Linux
Foundation."
Linus Torvalds [Fri, 19 Oct 2012 18:02:02 +0000 (11:02 -0700)]
Merge tag 'parisc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6
Pull PARISC changes from James Bottomley:
"This is a couple of high code motion patches (all within arch/parisc)
I'd like to apply at -rc1 to avoid conflicts with anything else. One
moves us on to the generated instead of included asm file model and
the other is a pull request from David Howells for UAPI
disintegration.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
* tag 'parisc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
UAPI: (Scripted) Disintegrate arch/parisc/include/asm
[PARISC] asm: redo generic includes
MAINTAINERS: Add Rafael's address to ACPI maintainers
Since I will be maintaining ACPI together with Len from now on, add my
address to the ACPI maintainers list in the MAINTAINERS file (this is
the address to send patches to).
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 19 Oct 2012 18:00:00 +0000 (11:00 -0700)]
Merge branch 'for-3.7' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from J Bruce Fields.
* 'for-3.7' of git://linux-nfs.org/~bfields/linux:
SUNRPC: Prevent kernel stack corruption on long values of flush
NLM: nlm_lookup_file() may return NLMv4-specific error codes
Daniel Vetter [Thu, 18 Oct 2012 12:44:35 +0000 (14:44 +0200)]
drm/i915: unconditionally use mt forcewake on hsw/ivb
Single-threaded forcewake was only used on some early pre-production
ivybridge machines, all the latest ones should use mt forcewake. And
we already assume this in other places of the code (e.g. DERRMR
support in the ddx, or the latest intel_gt_reset patch to reset any
lingering forcewake references left behind by the bios), so don't
bother here, too.
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Zankel [Thu, 18 Oct 2012 06:08:20 +0000 (23:08 -0700)]
xtensa: minor compiler warning fix
Fix two compiler warnings complaining about truncating a value on
a 64-bit host, and about declaring an unused variable that is only
used for a specific configuration.
Rusty Russell [Fri, 19 Oct 2012 01:23:15 +0000 (11:53 +1030)]
kbuild: sign the modules at install time
Linus deleted the old code and put signing on the install command,
I fixed it to extract the keyid and signer-name within sign-file
and cleaned up that script now it always signs in-place.
Some enthusiast should convert sign-key to perl and pull
x509keyid into it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Below is a RAS fix which reverts the addition of a sysfs attribute
which we agreed is not needed, post-factum. And this should go in now
because that sysfs attribute is going to end up in 3.7 otherwise and
thus exposed to userspace; removing it then would be a lot harder.
This is done as a merge rather than a simple patch/cherry-pick since
the baseline for this patch was not in the previous x86/urgent.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
450cc201038f3 ("x86/mce: Provide boot argument to honour bios-set CMCI
threshold") added the bios_cmci_threshold sysfs attribute which was
supposed to communicate to userspace tools that BIOS CMCI threshold has
been honoured.
However, this info is not of any importance to userspace - it should
rather get the actual error count it has been thresholded already from
MCi_STATUS[38:52].
So drop this before it becomes a used interface (good thing we caught
this early in 3.7-rc1, right after the merge window closed).
Linus Torvalds [Thu, 18 Oct 2012 23:10:42 +0000 (16:10 -0700)]
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Media fixes for:
- one Kconfig fix patch;
- one patch fixing DocBook breakage due to the drivers/media UAPI
changes;
- the remaining UAPI media changes (DVB API).
I'm aware that is is a little late for the UAPI renames for the DVB
API, but IMHO, it is better to merge it for 3.7, due to two reasons:
1) There is a major rename at 3.7 (not only uapi changes, but also
the entire media drivers were reorganized on 3.7, in order to
simplify the Kconfig logic, and easy drivers selection, especially
for hybrid devices). By confining all those renames there at 3.7
it will cause all the harm at for media developers on just one
shot. Stable backports upstream and at distros will likely
welcome it as well, as they won't need to check what changed on
3.7 and what was postponed for on 3.8.
2) The V4L2 DocBook Makefile creates a cross-reference between the
media API headers and the specs. This helps us _a_lot_ to be sure
that all API improvements are properly documented. Every time a
header changes from one place to another, DocBook/media/Makefile
needs to be patched. Currently, the DocBook breakage patch
depends on the DVB UAPI."
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] Kconfig: Fix dependencies for driver autoselect options
DocBook/media/Makefile: Fix build due to uapi breakage
UAPI: (Scripted) Disintegrate include/linux/dvb
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Jussi Kivilinna [Thu, 18 Oct 2012 20:24:57 +0000 (23:24 +0300)]
crypto: aesni - fix XTS mode on x86-32, add wrapper function for asmlinkage aesni_enc()
Calling convention for internal functions and 'asmlinkage' functions is
different on x86-32. Therefore do not directly cast aesni_enc as XTS tweak
function, but use wrapper function in between. Fixes crash with "XTS +
aesni_intel + x86-32" combination.
Cc: stable@vger.kernel.org Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Rientjes [Thu, 18 Oct 2012 03:41:15 +0000 (20:41 -0700)]
fs, xattr: fix bug when removing a name not in xattr list
Commit 38f38657444d ("xattr: extract simple_xattr code from tmpfs") moved
some code from tmpfs but introduced a subtle bug along the way.
If the name passed to simple_xattr_remove() does not exist in the list of
xattrs, then it is possible to call kfree(new_xattr) when new_xattr is
actually initialized to itself on the stack via uninitialized_var().
This causes a BUG() since the memory was not allocated via the slab
allocator and was not bypassed through to the page allocator because it
was too large.
Initialize the local variable to NULL so the kfree() never takes place.
Paulo Zanoni [Mon, 15 Oct 2012 18:51:42 +0000 (15:51 -0300)]
drm/i915: set the correct function pointers for Haswell DP
This is the final remaining piece of Haswell DP enablement. After this
patch, just calling intel_dp_init on any port will make DP work. We
still do not do this because we're currently initializing HDMI on all
the ports, so if we replace intel_hdmi_init with intel_dp_init, we
will break HDMI, and we can't call both because they share the same
registers.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Mon, 15 Oct 2012 18:51:41 +0000 (15:51 -0300)]
drm/i915: implement Haswell DP link train sequence
Previous patch "drm/i915: add basic Haswell DP link train bits"
implemented the basic structure to set the voltage levels and training
patterns. This patch adds the higher-level bits that are part of the
mode set sequence and hot plug.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Mon, 15 Oct 2012 18:51:32 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_ddi_disable_port
Just a missing register. There is no problem to run this code when the
output is HDMI.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Will Deacon [Thu, 18 Oct 2012 14:17:00 +0000 (15:17 +0100)]
arm64: ptrace: use HW_BREAKPOINT_EMPTY type for disabled breakpoints
If a debugger tries to zero a hardware debug control register, the
kernel will try to infer both the type and length of the breakpoint
in order to sanity-check against the requested regset type. This will
fail because the encoding will appear as a zero-length breakpoint.
This patch changes the control register setting so that disabled
breakpoints are treated as HW_BREAKPOINT_EMPTY and no further
sanity-checking is required.
Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Will Deacon [Thu, 11 Oct 2012 11:10:57 +0000 (12:10 +0100)]
arm64: ptrace: make structure padding explicit for debug registers
The user_hwdebug_state structure contains implicit padding to conform to
the alignment requirements of the AArch64 ABI (namely that aggregates
must be aligned to their most aligned member).
This patch fixes the ptrace functions operating on struct
user_hwdebug_state so that the padding is handled correctly.
Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Catalin Marinas [Tue, 16 Oct 2012 16:07:46 +0000 (17:07 +0100)]
arm64: No need to set the x0-x2 registers in start_thread()
For historical reasons, ARM used to set r0-r2 in start_thread() to the
first values on the user stack when starting a new user application. The
same logic has been inherited in AArch64. The x0 register is overridden
by the sys_execve() return value so it's always zero on success. The x1
and x2 registers are ignored by AArch64 and EABI AArch32 applications,
so we can safely remove the register setting for both native and compat
user space.
This also fixes a potential fault with the kernel accessing user space
stack directly.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Catalin Marinas [Tue, 16 Oct 2012 11:00:29 +0000 (12:00 +0100)]
arm64: Ignore memory blocks below PHYS_OFFSET
According to Documentation/arm64/booting.txt, the kernel image must be
loaded at a pre-defined offset from the start of RAM so that the kernel
can calculate PHYS_OFFSET based on this address. If the DT contains
memory blocks below this PHYS_OFFSET, report them and ignore the
corresponding memory range.
Catalin Marinas [Tue, 16 Oct 2012 10:44:53 +0000 (11:44 +0100)]
arm64: Fix the update_vsyscall() prototype
With commit 576094b7 (time: Introduce new GENERIC_TIME_VSYSCALL) the old
update_vsyscall() prototype is no longer available. This patch updates
the arm64 port.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: John Stultz <john.stultz@linaro.org>
Linus Torvalds [Thu, 18 Oct 2012 18:49:39 +0000 (11:49 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"Random small fixes across the MIPS code."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: CMP: Fix physical core number calculation logic
MIPS: JZ4740: Forward declare struct uart_port in header.
MIPS: JZ4740: Fix '#include guard' in serial.h
MIPS: hugetlbfs: Fix hazard between tlb write and pagemask restoration.
MIPS: Restore pagemask after dumping the TLB.
MIPS: Hugetlbfs: Handle huge pages correctly in pmd_bad()
MIPS: R5000: Fix TLB hazard handling.
MIPS: tlbex: Deal with re-definition of label
MIPS: Make __{,n,u}delay declarations match definitions and generic delay.h
Linus Torvalds [Thu, 18 Oct 2012 18:48:48 +0000 (11:48 -0700)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
"Here are a handful of powerpc related fixes."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
cpuidle/powerpc: Fix snooze state problem in the cpuidle design on pseries.
cpuidle/powerpc: Fix smt_snooze_delay functionality.
cpuidle/powerpc: Fix target residency initialisation in pseries cpuidle
powerpc: Build fix for powerpc KVM
Revert "powerpc/perf: Use pmc_overflow() to detect rolled back events"
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