GitHub/exynos8895/android_kernel_samsung_universal8895.git
12 years agodrm/i915: implement Haswell DP link train sequence
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>
12 years agodrm/i915: fix Haswell DP M/N registers
Paulo Zanoni [Thu, 18 Oct 2012 15:42:10 +0000 (12:42 -0300)]
drm/i915: fix Haswell DP M/N registers

We have to write the correct values inside intel_dp_set_m_n and then
prevent these values from being overwritten later.

V2: Unconfuse double negation.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add DP support to intel_ddi_disable_port
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>
12 years agodrm/i915: add DP support to intel_ddi_mode_set
Paulo Zanoni [Mon, 15 Oct 2012 18:51:33 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_ddi_mode_set

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>
12 years agodrm/i915: add DP support to intel_enable_ddi
Paulo Zanoni [Mon, 15 Oct 2012 18:51:40 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_enable_ddi

We should only write the DDI_BUF_CTL at this point for HDMI/DVI. For
DP we need to do this earlier, and the values written to the register
are also different.

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>
12 years agodrm/i915: add DP support to intel_ddi_get_hw_state
Paulo Zanoni [Mon, 15 Oct 2012 18:51:39 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_ddi_get_hw_state

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>
12 years agodrm/i915: add DP support to intel_ddi_get_encoder_port
Paulo Zanoni [Mon, 15 Oct 2012 18:51:38 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_ddi_get_encoder_port

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>
12 years agodrm/i915: fix DP AUX register definitions on Haswell
Paulo Zanoni [Thu, 18 Oct 2012 14:25:08 +0000 (16:25 +0200)]
drm/i915: fix DP AUX register definitions on Haswell

The old rule that the AUX registers are just an offset (+4 and +10)
from output_reg is not true anymore, since output_reg in on the CPU
and some AUX regs are on the PCH.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: use the existing #defines as spotted by Damien Lespiau.]
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Clear FORCEWAKE when taking over from BIOS
Chris Wilson [Thu, 18 Oct 2012 10:46:10 +0000 (11:46 +0100)]
drm/i915: Clear FORCEWAKE when taking over from BIOS

Some BIOSes may forcibly suspend RC6 during their operation which
trigger a warning as we find the hardware in a perplexing state upon
first use. So far that appears to be the worst symptom as fortuituously
we use the same values as the BIOS for programming the FORCEWAKE register.

Reported-by: Oleksij Rempel <bug-track@fisher-privat.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't save/restor ADPA for kms
Daniel Vetter [Thu, 11 Oct 2012 18:08:25 +0000 (20:08 +0200)]
drm/i915: don't save/restor ADPA for kms

We now no longer rely on this.

This is step 1 on a long journey to rid us of the save/restore
madness, which tends to lightly paper over many issues, and cause
tons of bad things itself ...

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: satisfy Paulo's ocd and drop the needless braces.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/crt: explicitly set up HOTPLUG_BITS on resume
Daniel Vetter [Thu, 11 Oct 2012 18:08:24 +0000 (20:08 +0200)]
drm/i915/crt: explicitly set up HOTPLUG_BITS on resume

... instead of relying on the register save/restore madness to do this.

To extract a bit of code call drm_mode_config_reset both on resume
and boot-up and move the hw state frobbing from the crt_init to the
->reset callback. The crt connector is the only one with a ->reset
callback, hence we can easily do this.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/crt: don't set HOTPLUG bits on !PCH
Daniel Vetter [Thu, 11 Oct 2012 18:08:23 +0000 (20:08 +0200)]
drm/i915/crt: don't set HOTPLUG bits on !PCH

... since they don't apply to pre-pch platforms and could actually be
harmful.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't save/restore HWS_PGA reg for kms
Daniel Vetter [Wed, 17 Oct 2012 09:32:57 +0000 (11:32 +0200)]
drm/i915: don't save/restore HWS_PGA reg for kms

We already do that as part of the ringbuffer re-setup at resume time.
Furthermore the register offset has moved on gen6+ around quite a bit,
and on ilk/gm45 we also need to restore the HWS reg for the bsd ring,
not just the render ring.

So again in kms mode this is only confusing a best, hence don't
bother.

v2: Fixup logic, noticed by Paulo Zanoni.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't save/restore irq regs for kms
Daniel Vetter [Wed, 17 Oct 2012 09:32:56 +0000 (11:32 +0200)]
drm/i915: don't save/restore irq regs for kms

We already call drm_irq_install/uninstall at the right time, which
will set up the irq registers with the correct values (through the
preinstall hooks).

For kms this is at best harmless, in the worst case we get an
interrupt when we don't really expect it.

v2: Fixup the logic, noticed by Paulo Zanoni.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't save/restore DP regs for kms
Daniel Vetter [Wed, 17 Oct 2012 09:32:55 +0000 (11:32 +0200)]
drm/i915: don't save/restore DP regs for kms

We completely compute these anew in each modeset, hence we don't rely
on them containing anything valid after resume.

To avoid breaking any ums setup due to reordering of the reads/writes
simply don't reorder anything, but bracket the reads/writes into if
(!kms) conditionals. More churn, but safer.

v2: Fixup the logic, noticed by Paulo Zanoni.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: use TU_SIZE macro at intel_dp_set_m_n
Paulo Zanoni [Mon, 15 Oct 2012 18:51:35 +0000 (15:51 -0300)]
drm/i915: use TU_SIZE macro at intel_dp_set_m_n

Much simpler and looks more like the M/N code inside intel_display.c.

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>
12 years agodrm/i915: add basic Haswell DP link train bits
Paulo Zanoni [Mon, 15 Oct 2012 18:51:34 +0000 (15:51 -0300)]
drm/i915: add basic Haswell DP link train bits

Previously, the DP register was used for everything. On Haswell, it
was split into DDI_BUF_CTL (which is the new intel_dp->DP register)
and DP_TP_CTL.

The logic behind this patch is based on a patch written by Shobhit
Kumar, but the way the code was written is very different.

Credits-to: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Fixup the logic error spotted by Jani Nikula.]
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add DP support to intel_ddi_pll_mode_set
Paulo Zanoni [Mon, 15 Oct 2012 18:51:31 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_ddi_pll_mode_set

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add intel_ddi_set_pipe_settings
Paulo Zanoni [Mon, 15 Oct 2012 18:51:30 +0000 (15:51 -0300)]
drm/i915: add intel_ddi_set_pipe_settings

In theory, all the DDI pipe settings should be set here, including
timing and M/N registers. For now, let's just set the DP MSA
attributes.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: fixed up the unused typo in a #define, spotted by Jani
Nikula.]
Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add DP support to intel_ddi_enable_pipe_func
Paulo Zanoni [Mon, 15 Oct 2012 18:51:29 +0000 (15:51 -0300)]
drm/i915: add DP support to intel_ddi_enable_pipe_func

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>
12 years agodrm/i915: Document the multi-threaded FORCEWAKE bits
Chris Wilson [Wed, 17 Oct 2012 11:09:55 +0000 (12:09 +0100)]
drm/i915: Document the multi-threaded FORCEWAKE bits

No functional change, but reserves 0x2 for use by userspace.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Allow DRM_ROOT_ONLY|DRM_MASTER to submit privileged batchbuffers
Chris Wilson [Wed, 17 Oct 2012 11:09:54 +0000 (12:09 +0100)]
drm/i915: Allow DRM_ROOT_ONLY|DRM_MASTER to submit privileged batchbuffers

With the introduction of per-process GTT space, the hardware designers
thought it wise to also limit the ability to write to MMIO space to only
a "secure" batch buffer. The ability to rewrite registers is the only
way to program the hardware to perform certain operations like scanline
waits (required for tear-free windowed updates). So we either have a
choice of adding an interface to perform those synchronized updates
inside the kernel, or we permit certain processes the ability to write
to the "safe" registers from within its command stream. This patch
exposes the ability to submit a SECURE batch buffer to
DRM_ROOT_ONLY|DRM_MASTER processes.

v2: Haswell split up bit8 into a ppgtt bit (still bit8) and a security
bit (bit 13, accidentally not set). Also add a comment explaining why
secure batches need a global gtt binding.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
[danvet: added hsw fixup.]
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: move hpd handling to (ibx|cpt)_irq_handler
Daniel Vetter [Fri, 12 Oct 2012 18:14:05 +0000 (20:14 +0200)]
drm/i915: move hpd handling to (ibx|cpt)_irq_handler

Somehow this was left out in the refactoring that introduced the pch
handlers. Avoids a hotplug_mask special case in the ilk_irq_handler.

Noticed while hunting down the pch hotplug bits.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Add rc6vids to debugfs
Ben Widawsky [Wed, 26 Sep 2012 17:34:02 +0000 (10:34 -0700)]
drm/i915: Add rc6vids to debugfs

CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Workaround to bump rc6 voltage to 450
Ben Widawsky [Wed, 26 Sep 2012 17:34:01 +0000 (10:34 -0700)]
drm/i915: Workaround to bump rc6 voltage to 450

BIOS should be setting the minimum voltage for rc6 to be 450mV. Old or
buggy BIOSen may not be doing this, so we correct it for them. Ideally
customers should update the BIOS as only it would know the optimal
values for the platform, so we leave that fact as a DRM_ERROR for the
user to see.

Unfortunately this isn't fixing any of the issues it was targeted to
fix, but it is documented that we must do it.

CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: Matt Turner <mattst88@gmail.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: bikeshedded loglevel of the "your bios is broken message" to
debug.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Extract PCU communication
Ben Widawsky [Wed, 26 Sep 2012 17:34:00 +0000 (10:34 -0700)]
drm/i915: Extract PCU communication

There is a special mechanism for communicating with the PCU already
being used for the ring frequency stuff. As we'll be needing this for
other commands, extract it now to make future code less error prone and
the current code more reusable.

I'm not entirely sure if this code matches 1:1 with the previous code
behaviorally. Functionally however, it should be the same.

CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Fixup compile fail reported by Wu Fengguang.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Fix the SCC/SSC typo in the SPLL bits definition
Damien Lespiau [Thu, 11 Oct 2012 14:24:04 +0000 (15:24 +0100)]
drm/i915: Fix the SCC/SSC typo in the SPLL bits definition

We're talking about Spread Spectrum Clocks here, thus SSC.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: pipe and planes should be disabled on haswell_crtc_mode_set
Paulo Zanoni [Fri, 5 Oct 2012 15:06:01 +0000 (12:06 -0300)]
drm/i915: pipe and planes should be disabled on haswell_crtc_mode_set

So WARN in case they're not. It also does not make any sense to
wait_for_vblank at this point.

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>
12 years agodrm/i915: disable DDI_BUF_CTL at the correct time
Paulo Zanoni [Fri, 5 Oct 2012 15:06:00 +0000 (12:06 -0300)]
drm/i915: disable DDI_BUF_CTL at the correct time

And also properly wait for its idle bit.

You may notice that DDI_BUF_CTL is enabled in .enable but disabled in
.post_disable instead of .disable. Yes, the mode set sequence is not
exactly symmetrical, but let's assume the spec is correct unless we
can prove it's wrong.

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>
12 years agodrm/i915: don't implement WaDisableEarlyCull for Haswell
Paulo Zanoni [Wed, 10 Oct 2012 21:09:59 +0000 (18:09 -0300)]
drm/i915: don't implement WaDisableEarlyCull for Haswell

Introduced in commit 87f8020ec9e3069597746040a4e8655189bc0c1a:
  drm/i915: implement WaDisableEarlyCull for VLV and IVB

Notice that the original patch sent to the mailing list did not
include the Haswell chunk, it was added later.

The bit set by the commit does not exist on Haswell machines (at least
that's what the documentation says). Also, the commit gives me a GPU
hang every time we're loading the driver. So let's revert the Haswell
chunk, making the patch do only what its title actually says.

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>
12 years agodrm/i915: don't rely on previous values set on DDI_BUF_CTL
Paulo Zanoni [Fri, 5 Oct 2012 15:05:59 +0000 (12:05 -0300)]
drm/i915: don't rely on previous values set on DDI_BUF_CTL

Just set the only bit we need, everything else is either ignored on
HDMI or should be set to zero.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: completely rewrite the Haswell PLL handling code
Paulo Zanoni [Fri, 5 Oct 2012 15:05:58 +0000 (12:05 -0300)]
drm/i915: completely rewrite the Haswell PLL handling code

Problems with the previous code:
  - HDMI just uses WRPLL1 for everything, so dual head cases might not
    work sometimes.
  - At encoder->mode_set we just write the PLL register without doing
    any kind of check (e.g., check if the PLL is already being used).
  - There is no way to fail and return error codes at
    encoder->mode_set.
  - We write to PORT_CLK_SEL at mode_set and we never disable it.
  - Machines hang due to wrong clock enable/disable sequence.

So here we rewrite the code, making it a little more like the
pre-Haswell PLL mode set code:
  - Check PLL availability at ironlake_crtc_mode_set.
  - Try to use both WRPLLs.
  - Check if PLLs are used before actually trying to use them, and
    properly fail with error messages.
  - Enable/disable PORT_CLK_SEL at the right place.
  - Add some WARNs to check for bugs.

The next improvement will be to try to reuse PLLs if the timings
match, but this is content for another patch and it's already
documented with a TODO comment.

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>
12 years agodrm/i915: add haswell_set_pipeconf
Paulo Zanoni [Fri, 5 Oct 2012 15:05:57 +0000 (12:05 -0300)]
drm/i915: add haswell_set_pipeconf

It's a copy of ironlake_set_pipeconf with 2 differences:
  - There is no BPC field to set.
  - The interlaced mask is now 2 bits instead of 3.

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>
12 years agodrm/i915: add proper CPU/PCH checks to crtc_mode_set functions
Paulo Zanoni [Fri, 5 Oct 2012 15:05:56 +0000 (12:05 -0300)]
drm/i915: add proper CPU/PCH checks to crtc_mode_set functions

On ironlake_crtc_mode_set, WARN if not using IBX or CPT.

On haswell_crtc_mode_set, only run IBX/CPT code on IBX/CPT. I am still
not sure whether IBX/CPT will be possible with a Haswell CPU, so leave
the code there for now and put a WARN in case we spot it.

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>
12 years agodrm/i915: add haswell_crtc_mode_set
Paulo Zanoni [Fri, 5 Oct 2012 15:05:55 +0000 (12:05 -0300)]
drm/i915: add haswell_crtc_mode_set

It's just a copy of ironlake_crtc_mode_set.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: enable and disable PIPE_CLK_SEL at the right time
Paulo Zanoni [Fri, 5 Oct 2012 15:05:54 +0000 (12:05 -0300)]
drm/i915: enable and disable PIPE_CLK_SEL at the right time

Previously we were enabling it at mode_set but never disabling. Let's
follow the mode set sequence.

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>
12 years agodrm/i915: enable and disable DDI_FUNC_CTL at the right time
Paulo Zanoni [Fri, 5 Oct 2012 15:05:53 +0000 (12:05 -0300)]
drm/i915: enable and disable DDI_FUNC_CTL at the right time

And the right time is exactly after/before changing PIPE_CONF. See the
documentation about the mode set sequence.

This code is not inside any encoder-specific callback because
DDI_FUNC_CTL is part of the pipe, so it is used by all encoders.

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>
12 years agodrm/i915: rewrite the LCPLL code
Paulo Zanoni [Fri, 5 Oct 2012 15:05:52 +0000 (12:05 -0300)]
drm/i915: rewrite the LCPLL code

Right now, we're trying to enable LCPLL at every mode set, but we're
never disabling it. Also, we really don't want to be disabling LCPLL
since it requires a very complex disable/enable sequence. This
register should really be set by the BIOS and we shouldn't be touching
it. Still, let's try to check its value and print some errors in case
we find something wrong. We're also adding intel_ddi_get_cdclk_freq
which will be used later in other places.

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>
12 years agodrm/i915: Align the retire_requests worker to the nearest second
Chris Wilson [Fri, 5 Oct 2012 16:02:57 +0000 (17:02 +0100)]
drm/i915: Align the retire_requests worker to the nearest second

By using round_jiffies() we can align the wakeup of our worker to the
nearest second in order to batch wakeups and reduce system load, which
is useful for unimportant coarse tasks like our retire_requests.

v2: round_jiffies_relative() already returns the relative timeout value,
so no need to incorrectly perform the subtraction twice. The timer
interface still leaves the possibility for the value of jiffies to
change be we program the timer.

Suggested-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Align the hangcheck wakeup to the nearest second
Chris Wilson [Fri, 5 Oct 2012 16:02:56 +0000 (17:02 +0100)]
drm/i915: Align the hangcheck wakeup to the nearest second

round_jiffies() aligns the wakeup time to the nearest second in order to
batch wakeups and reduce system load, which is useful for unimportant
coarse timers like our hangcheck.

v2: round_jiffies_relative() returns the relative jiffie value, whereas
we need the absolute value for the timer.

Suggested-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Remove the WaDisableBackToBackFlipFix w/a for Haswell
Damien Lespiau [Thu, 4 Oct 2012 17:49:24 +0000 (18:49 +0100)]
drm/i915: Remove the WaDisableBackToBackFlipFix w/a for Haswell

This workaround is only valid for IVB and VLV and the write triggers an
error on HSW.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanonI@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Document that we are implementing WaDisableBackToBackFlipFix
Damien Lespiau [Thu, 4 Oct 2012 17:49:23 +0000 (18:49 +0100)]
drm/i915: Document that we are implementing WaDisableBackToBackFlipFix

For the next person that checks these kind of things, without having to
dig up the register definition.

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>
12 years agodrm/i915: remove duplicated include from intel_modes.c
Wei Yongjun [Sun, 7 Oct 2012 13:26:35 +0000 (21:26 +0800)]
drm/i915: remove duplicated include from intel_modes.c

Remove duplicated include.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Remove the disabling of VHR unit clock gating for HSW
Damien Lespiau [Fri, 5 Oct 2012 11:51:06 +0000 (12:51 +0100)]
drm/i915: Remove the disabling of VHR unit clock gating for HSW

There's is another register (a read only, so no harm done) at 0x42020 on
Haswell GPUs. Let's just remove the write from the copy&paste that
introduced haswell_init_clock_gating().

A note for the interested reader, it does seem we have a duplication of
the 0x42020 register definition, hence the removal of 2 writes. That
duplication could be the object of a later patch.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: implement WaDisableEarlyCull for VLV and IVB
Jesse Barnes [Tue, 2 Oct 2012 22:43:41 +0000 (17:43 -0500)]
drm/i915: implement WaDisableEarlyCull for VLV and IVB

Workaround for a culling optimization.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Also apply to haswell, spotted by Damien.]
Reviewed-by: "Lespiau, Damien" <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: implement WaForceL3Serialization on VLV and IVB
Jesse Barnes [Tue, 2 Oct 2012 22:43:38 +0000 (17:43 -0500)]
drm/i915: implement WaForceL3Serialization on VLV and IVB

References: https://bugs.freedesktop.org/show_bug.cgi?id=50250
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: s/DRM_IRQ_ARGS/int irq, void *arg
Daniel Vetter [Tue, 2 Oct 2012 13:10:55 +0000 (15:10 +0200)]
drm/i915: s/DRM_IRQ_ARGS/int irq, void *arg

I'm official fed up with the yelling and useless indirection.

Let it burn!

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: extract intel_set_pipe_timings from crtc_mode_set
Paulo Zanoni [Mon, 1 Oct 2012 21:10:53 +0000 (18:10 -0300)]
drm/i915: extract intel_set_pipe_timings from crtc_mode_set

Version 2: call intel_set_pipe_timings from both i9xx_crtc_mode_set
and ironlake_crtc_mode_set, instead of just ironlake, as requested by
Daniel Vetter.

The problem caused by calling this function from i9xx_crtc_mode_set
too is that now on i9xx we write to PIPESRC before writing to DSPSIZE
and DSPPOS. I could not find any evidence in our documentation that
this won't work, and the docs actually say the pipe registers should
be set before the plane registers.

Version 3: don't remove pipeconf bits on i9xx_crtc_mode_set.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add debug logging to ASLE backlight set requests
Jani Nikula [Mon, 1 Oct 2012 11:25:30 +0000 (14:25 +0300)]
drm/i915: add debug logging to ASLE backlight set requests

Make it easier to track backlight set requests coming through ASLE instead
of the driver's own backlight sysfs interface. We've had enough of
backlight issues to warrant some extra debug logs in the area.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Fixup HDMI output on Valleyview
Vijay Purushothaman [Thu, 27 Sep 2012 13:43:09 +0000 (19:13 +0530)]
drm/i915: Fixup HDMI output on Valleyview

Fixed correct min, max vco limits and dip ctl reg

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Add eDP support for Valleyview
Gajanan Bhat [Thu, 27 Sep 2012 13:43:07 +0000 (19:13 +0530)]
drm/i915: Add eDP support for Valleyview

Eventhough Valleyview display block is derived from Cantiga, VLV
supports eDP. So, added eDP checks in i9xx_crtc_mode_set path.

v2: use different DPIO_DIVISOR values for VGA, DP and eDP
v3: fix DPIO value calculation to use same values for all display
interfaces
v4: removed unconditional enabling of 6bpc dithering based on comments
from Daniel & Jani Nikula. Also changed the display enabling order to
force eDP detection first.

Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Enable DisplayPort in Valleyview
Vijay Purushothaman [Thu, 27 Sep 2012 13:43:06 +0000 (19:13 +0530)]
drm/i915: Enable DisplayPort in Valleyview

In valleyview voltageswing, pre-emphasis and lane control registers can
be programmed only through the h/w side band fabric.

Cleaned up DPLL calculations for Valleyview to support multi display
configurations.

v2: Based on Daniel's feedbacak, moved crt hotplug detect work around as separate
patch. Also moved i9xx_update_pll_dividers to i8xx_update_pll and
i9xx_update_pll.

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: drop spurious whitespace changes.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Program correct m n tu register for Valleyview
Vijay Purushothaman [Thu, 27 Sep 2012 13:43:04 +0000 (19:13 +0530)]
drm/i915: Program correct m n tu register for Valleyview

m n tu register offset has changed in Valleyview. Also fixed DP limit
frequencies.

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Add Valleyview lane control definitions
Vijay Purushothaman [Thu, 27 Sep 2012 13:43:03 +0000 (19:13 +0530)]
drm/i915: Add Valleyview lane control definitions

Added DPIO data lane register definitions for Valleyview

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Fix SDVO IER and status bits for Valleyview
Vijay Purushothaman [Thu, 27 Sep 2012 13:43:02 +0000 (19:13 +0530)]
drm/i915: Fix SDVO IER and status bits for Valleyview

Fixed SDVOB and SDVOC bit definitions for Valleyview.

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Set aux clk to 100MHz for Valleyview
Vijay Purushothaman [Thu, 27 Sep 2012 13:43:01 +0000 (19:13 +0530)]
drm/i915: Set aux clk to 100MHz for Valleyview

Set hrawclk to 200 MHz and aux divider clock to 100 MHz for Valleyview.
This enables the aux transactions in Valleyview.

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: limit VLV IRQ enables to those we use
Jesse Barnes [Wed, 19 Sep 2012 20:29:01 +0000 (13:29 -0700)]
drm/i915: limit VLV IRQ enables to those we use

To match IVB.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/dp: Make sink count DP 1.2 aware
Adam Jackson [Thu, 20 Sep 2012 20:42:45 +0000 (16:42 -0400)]
drm/dp: Make sink count DP 1.2 aware

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/dp: Document DP spec versions for various DPCD registers
Adam Jackson [Thu, 20 Sep 2012 20:42:44 +0000 (16:42 -0400)]
drm/dp: Document DP spec versions for various DPCD registers

Note with a comment anything newer than DP 1.1a.

Obviously this needs some work still...

Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/dp: Be smarter about connection sense for branch devices
Adam Jackson [Tue, 18 Sep 2012 14:58:50 +0000 (10:58 -0400)]
drm/i915/dp: Be smarter about connection sense for branch devices

If there's no downstream device, DPCD success is good enough.  If
there's a hotplug-capable downstream device, count the number of
connected sinks in DP_SINK_STATUS and return success if it's non-zero.
Otherwise, probe DDC and report appropriately.

v2: Check DP_SINK_STATUS instead of something unrelated to sink status.

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/dp: Fetch downstream port info if needed during DPCD fetch
Adam Jackson [Tue, 18 Sep 2012 14:58:49 +0000 (10:58 -0400)]
drm/i915/dp: Fetch downstream port info if needed during DPCD fetch

v2: Fix parenthesis mismatch, spotted by Jani Nikula

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Fixup merge conflict and MAX_DOWNSTREAM #define as spotted by
Jani.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/dp: Update DPCD defines
Adam Jackson [Tue, 18 Sep 2012 14:58:48 +0000 (10:58 -0400)]
drm/dp: Update DPCD defines

Sources: DP, eDP, and DP interop specs, and a VESA slideshow about DP
1.2 for the MST bits.

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-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>
12 years agodrm: Export drm_probe_ddc()
Adam Jackson [Tue, 18 Sep 2012 14:58:47 +0000 (10:58 -0400)]
drm: Export drm_probe_ddc()

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove unused variables from ironlake_crtc_mode_set
Paulo Zanoni [Thu, 20 Sep 2012 21:36:06 +0000 (18:36 -0300)]
drm/i915: remove unused variables from ironlake_crtc_mode_set

The last patches moved a lot of code from ironlake_crtc_mode_set to
sub-functions, so these variables became useless. You could get
warnings by enabling -Wunused-but-set-variable.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: extract compute_dpll from ironlake_crtc_mode_set
Paulo Zanoni [Thu, 20 Sep 2012 21:36:05 +0000 (18:36 -0300)]
drm/i915: extract compute_dpll from ironlake_crtc_mode_set

Too many lines just to compute the value of a single variable, so
move this to its own function.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: extract set_m_n from ironlake_crtc_mode_set
Paulo Zanoni [Thu, 20 Sep 2012 21:36:04 +0000 (18:36 -0300)]
drm/i915: extract set_m_n from ironlake_crtc_mode_set

The set_m_n code was spread all over the mode_set function.

Version 2:
Don't set the DP M/N registers on ironlake_set_m_n. Daniel Vetter has
plans to add some encoder-specific callbacks. Also, on this version we
don't change the order we're writing the registers, making the code
change safer.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't recheck for invalid pipe bpp
Paulo Zanoni [Thu, 20 Sep 2012 21:36:03 +0000 (18:36 -0300)]
drm/i915: don't recheck for invalid pipe bpp

As noticed by Daniel Vetter, intel_pipe_choose_bpp_dither should
already check for invalid bpp values and set a valid value, so remove
the recheck inside ironlake_crtc_mode_set and also replace a "default"
switch case inside ironlake_set_pipeconf with a BUG().

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoMerge tag 'v3.6-rc7' into drm-intel-next-queued
Daniel Vetter [Mon, 24 Sep 2012 16:07:48 +0000 (18:07 +0200)]
Merge tag 'v3.6-rc7' into drm-intel-next-queued

Manual backmerge of -rc7 to resolve a silent conflict leading to
compile failure in drivers/gpu/drm/i915/intel_hdmi.c.

This is due to the bugfix in -rc7:

commit b98b60167279df3acac9422c3c9820d9ebbcf9fb
Author: Wang Xingchao <xingchao.wang@intel.com>
Date:   Thu Sep 13 07:43:22 2012 +0800

    drm/i915: HDMI - Clear Audio Enable bit for Hot Plug

Since this code moved around a lot in -next git put that snippet at
the wrong spot. I've tried to fix this by making the conflict explicit
by merging a version for next with:

commit 3cce574f0190dd149472059fb69267cf83d290f9
Author: Wang Xingchao <xingchao.wang@intel.com>
Date:   Thu Sep 13 11:19:00 2012 +0800

    drm/i915: HDMI - Clear Audio Enable bit for Hot Plug unconditionally

But that failed to solve the entire problem. To avoid pushing out
further -nightly branch to our QA where this is broken, do the
backmerge and manually add the stuff git adds to -next from the patch
in -fixes.

Note that this doesn't show up in git's merge diff (and hence is also
not handled by git rerere), which adds to the reasons why I'd like to
fix this with a verbose backmerge. The git merge diff only shows a
bunch of trivial conflicts of the "code changed in lines next to each
another" kind.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: BUG() on unexpected HDMI register
Paulo Zanoni [Mon, 24 Sep 2012 13:32:54 +0000 (10:32 -0300)]
drm/i915: BUG() on unexpected HDMI register

This should never happen, but the silent "return" makes me wonder
every time I try to debug InfoFrame bugs, so promote this to BUG() to
make sure people will complain if we ever break this.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoLinux 3.6-rc7
Linus Torvalds [Mon, 24 Sep 2012 01:10:57 +0000 (18:10 -0700)]
Linux 3.6-rc7

12 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Sun, 23 Sep 2012 22:40:58 +0000 (15:40 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild fixes from Michal Marek:
 "There are two more kbuild fixes for 3.6.

  One fixes a race between x86's archscripts target and the rule
  (re)building scripts/basic/fixdep.  The second is a fix for the
  previous attempt at fixing make firmware_install with make 3.82.
  This new solution should work with any version of GNU make"

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  x86/kbuild: archscripts depends on scripts_basic
  firmware: fix directory creation rule matching with make 3.80

12 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Sun, 23 Sep 2012 21:50:15 +0000 (14:50 -0700)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

Pull hwmon subsystem fixes from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (fam15h_power) Tweak runavg_range on resume
  hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug
  hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug

12 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 23 Sep 2012 21:48:28 +0000 (14:48 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of four essential fixes: two oops related (bnx2i,
  virtio-scsi), one data corruption related (hpsa) and one failure to
  boot due to interrupt routing issues (mpt2ss).

Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] hpsa: fix handling of protocol error
  [SCSI] mpt2sas: Fix for issue - Unable to boot from the drive connected to HBA
  [SCSI] bnx2i: Fixed NULL ptr deference for 1G bnx2 Linux iSCSI offload
  [SCSI] scsi: virtio-scsi: Fix address translation failure of HighMem pages used by sg list

12 years agoedac_mc: edac_mc_free() cannot assume mem_ctl_info is registered in sysfs.
Shaun Ruffell [Sun, 23 Sep 2012 01:26:38 +0000 (20:26 -0500)]
edac_mc: edac_mc_free() cannot assume mem_ctl_info is registered in sysfs.

Fix potential NULL pointer dereference in edac_unregister_sysfs() on
system boot introduced in 3.6-rc1.

Since commit 7a623c039 ("edac: rewrite the sysfs code to use struct
device") edac_mc_alloc() no longer initializes embedded kobjects in
struct mem_ctl_info.  Therefore edac_mc_free() can no longer simply
decrement a kobject reference count to free the allocated memory unless
the memory controller driver module had also called edac_mc_add_mc().

Now edac_mc_free() will check if the newly embedded struct device has
been registered with sysfs before using either the standard device
release functions or freeing the data structures itself with logic
pulled out of the error path of edac_mc_alloc().

The BUG this patch resolves for me:

  BUG: unable to handle kernel NULL pointer dereference at   (null)
  EIP is at __wake_up_common+0x1a/0x6a
  Process modprobe (pid: 933, ti=f3dc6000 task=f3db9520 task.ti=f3dc6000)
  Call Trace:
    complete_all+0x3f/0x50
    device_pm_remove+0x23/0xa2
    device_del+0x34/0x142
    edac_unregister_sysfs+0x3b/0x5c [edac_core]
    edac_mc_free+0x29/0x2f [edac_core]
    e7xxx_probe1+0x268/0x311 [e7xxx_edac]
    e7xxx_init_one+0x56/0x61 [e7xxx_edac]
    local_pci_probe+0x13/0x15
  ...

Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoedac_mc: fix messy kfree calls in the error path
Fengguang Wu [Sun, 23 Sep 2012 00:18:06 +0000 (08:18 +0800)]
edac_mc: fix messy kfree calls in the error path

coccinelle warns about:

+ drivers/edac/edac_mc.c:429:9-23: ERROR: reference preceded by free on line 429

   421         if (mci->csrows) {
 > 422                 for (chn = 0; chn < tot_channels; chn++) {
   423                         csr = mci->csrows[chn];
   424                         if (csr) {
 > 425                                 for (chn = 0; chn < tot_channels; chn++)
   426                                          kfree(csr->channels[chn]);
   427                                  kfree(csr);
   428                          }
 > 429                          kfree(mci->csrows[i]);
   430                  }
   431                  kfree(mci->csrows);
   432          }

and that code block seem to mess things up in several ways (double free, memory
leak, out-of-bound reads etc.):

L422: The iterator "chn" and bound "tot_channels" are totally wrong. Should be
      "row" and "tot_csrows" respectively. Which means either memory leak, or
      out-of-bound reads (which if does not trigger an immediate page fault
      error, will further lead to kfree() on random addresses).

L425: The inner loop is reusing the same iterator "chn" as the outer loop,
      which could lead to premature end of the outer loop, and hence memory leak.

L429: The array index 'i' in mci->csrows[i] is a temporary value used in
      previous loops, and won't change at all in the current loop. Which
      means either out-of-bound read and possibly kfree(random number), or the
      same mci->csrows[i] get freed once and again, and possibly double free
      for the kfree(csr) in L427.

L426/L427: a kfree(csr->channels) is needed in between to avoid leaking the memory.

The buggy code was introduced by commit de3910eb ("edac: change the mem
allocation scheme to make Documentation/kobject.txt happy") in the 3.6-rc1
merge window. Fix it by freeing up resources in this order:

  free csrows[i]->channels[j]
  free csrows[i]->channels
  free csrows[i]
  free csrows

CC: Mauro Carvalho Chehab <mchehab@redhat.com>
CC: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agohwmon: (fam15h_power) Tweak runavg_range on resume
Andreas Herrmann [Sun, 23 Sep 2012 18:27:32 +0000 (20:27 +0200)]
hwmon: (fam15h_power) Tweak runavg_range on resume

The quirk introduced with commit
00250ec90963b7ef6678438888f3244985ecde14 (hwmon: fam15h_power: fix
bogus values with current BIOSes) is not only required during driver
load but also when system resumes from suspend. The BIOS might set the
previously recommended (but unsuitable) initilization value for the
running average range register during resume.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Tested-by: Andreas Hartmann <andihartmann@01019freenet.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@vger.kernel.org # 3.0+
12 years agohwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug
Silas Boyd-Wickizer [Sun, 23 Sep 2012 18:27:32 +0000 (20:27 +0200)]
hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug

coretemp_init loops with for_each_online_cpu, adding platform_devices
and sysfs interfaces, then calls register_hotcpu_notifier.  There is a
race if a CPU is offlined or onlined after the loop, but before
register_hotcpu_notifier.  The race might result in the absence of a
platform_device+sysfs interface for an online CPU, or the presence of
a platform_device+sysfs interface for an offline CPU.  A similar race
occurs during coretemp_exit, after the module calls
unregister_hotcpu_notifier, but before it unregisters all devices, a
CPU might offline and a device for an offline CPU will exist for a
short while.

This fix surrounds for_each_online_cpu and register_hotcpu_notifier
with get_online_cpus+put_online_cpus; and surrounds
unregister_hotcpu_notifier and device unregistering with
get_online_cpus+put_online_cpus.

Build tested.

Signed-off-by: Silas Boyd-Wickizer <sbw@mit.edu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
12 years agohwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug
Silas Boyd-Wickizer [Sun, 23 Sep 2012 18:27:32 +0000 (20:27 +0200)]
hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug

via_cputemp_init loops with for_each_online_cpu, adding
platform_devices, then calls register_hotcpu_notifier.  If a CPU is
offlined between the loop and register_hotcpu_notifier, then later
onlined, via_cputemp_device_add will attempt to add platform devices
with the same ID.  A similar race occurs during via_cputemp_exit,
after the module calls unregister_hotcpu_notifier, a CPU might offline
and a device will exist for a CPU that is offline.

This fix surrounds for_each_online_cpu and register_hotcpu_notifier
with get_online_cpus+put_online_cpus; and surrounds
unregister_hotcpu_notifier and device unregistering with
get_online_cpus+put_online_cpus.

Build tested.

Signed-off-by: Silas Boyd-Wickizer <sbw@mit.edu>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
12 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sat, 22 Sep 2012 19:47:53 +0000 (12:47 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "Random fixes across arch/mips, essentially.

  One fix for an issue in get_user_pages_fast() which previously was
  discovered on x86, a miscalculation in the support for the MIPS MT
  hardware multithreading support, the RTC support for the Malta and a
  fix for a spurious interrupt issue that seems to bite only very
  special Malta configurations."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Malta: Don't crash on spurious interrupt.
  MIPS: Malta: Remove RTC Data Mode bootstrap breakage
  MIPS: mm: Add compound tail page _mapcount when mapped
  MIPS: CMP/SMTC: Fix tc_id calculation

12 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Sat, 22 Sep 2012 19:40:16 +0000 (12:40 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM and clkdev fixes from Russell King:
 "Two patches for clkdev which resolve the long standing issue that the
  devm_* versions were dependent on clkdev, which they shouldn't have
  been.  Instead, they're dependent on HAVE_CLK instead, which implies
  that you're providing clk_get() and clk_put().

  A small fix to the ARM decompressor to ensure that the page tables are
  properly interpreted by the CPU, and reserve syscall 378 for kcmp (the
  checksyscalls.sh script is unfortunately currently broken so arch
  maintainers aren't getting notified of new syscalls...)

  Lastly, a larger fix for an issue between the common clk subsystem and
  smp_twd which causes warnings to be spat out."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: reserve syscall 378 for kcmp
  ARM: 7535/1: Reprogram smp_twd based on new common clk framework notifiers
  ARM: 7537/1: clk: Fix release in devm_clk_put()
  ARM: 7532/1: decompressor: reset SCTLR.TRE for VMSA ARMv7 cores
  ARM: 7534/1: clk: Make the managed clk functions generically available

12 years agoMerge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Sat, 22 Sep 2012 19:37:54 +0000 (12:37 -0700)]
Merge branch 'upstream-fixes' of git://git./linux/kernel/git/jikos/hid

Pull HID fixes from Jiri Kosina:
 "The most important fix is Logitech Unifying receiver regression in
  device enumeration fix from Nestor Lopez Casado.  In addition to that,
  there is a small memory leak fix for Thinkpad keyboard driver from
  Axel Lin."

* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Fix logitech-dj: missing Unifying device issue
  HID: lenovo-tpkbd: Fix memory leak in tpkbd_remove_tp()

12 years agoMerge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 22 Sep 2012 19:36:57 +0000 (12:36 -0700)]
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fix from Steve French.

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix return value in cifsConvertToUTF16

12 years agoHID: Fix logitech-dj: missing Unifying device issue
Nestor Lopez Casado [Fri, 21 Sep 2012 10:21:34 +0000 (12:21 +0200)]
HID: Fix logitech-dj: missing Unifying device issue

This patch fixes an issue introduced after commit 4ea5454203d991ec
("HID: Fix race condition between driver core and ll-driver").

After that commit, hid-core discards any incoming packet that arrives while
hid driver's probe function is being executed.

This broke the enumeration process of hid-logitech-dj, that must receive
control packets in-band with the mouse and keyboard packets. Discarding mouse
or keyboard data at the very begining is usually fine, but it is not the case
for control packets.

This patch forces a re-enumeration of the paired devices when a packet arrives
that comes from an unknown device.

Based on a patch originally written by Benjamin Tissoires.

Cc: stable@vger.kernel.org # v3.2+
Signed-off-by: Nestor Lopez Casado <nlopezcasad@logitech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: lenovo-tpkbd: Fix memory leak in tpkbd_remove_tp()
Axel Lin [Thu, 13 Sep 2012 05:25:12 +0000 (13:25 +0800)]
HID: lenovo-tpkbd: Fix memory leak in tpkbd_remove_tp()

We need to kfree names for led_mute and led_micmute in tpkbd_remove_tp().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Bernhard Seibold <mail@bernhard-seibold.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 21 Sep 2012 21:32:55 +0000 (14:32 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking updates from David Miller:
 "More bug fixes, nothing gets past these guys"

 1) More kernel info leaks found by Mathias Krause, this time in the
    IPSEC configuration layers.

 2) When IPSEC policies change, we do not properly make sure that cached
    routes (which could now be stale) throughout the system will be
    revalidated.  Fix this by generalizing the generation count
    invalidation scheme used by ipv4.  From Nicolas Dichtel.

 3) When repairing TCP sockets, we need to allow to restore not just the
    send window scale, but the receive one too.  Extend the existing
    interface to achieve this in a backwards compatible way.  From
    Andrey Vagin.

 4) A fix for FCOE scatter gather feature validation erroneously caused
    scatter gather to be disabled for things like AOE too.  From Ed L
    Cashin.

 5) Several cases of mishandling of error pointers, from Mathias Krause,
    Wei Yongjun, and Devendra Naga.

 6) Fix gianfar build, from Richard Cochran.

 7) CAP_NET_* failures should return -EPERM not -EACCES, from Zhao
    Hongjiang.

 8) Hardware reset fix in janz-ican3 CAN driver, from Ira W Snyder.

 9) Fix oops during rmmod in ti_hecc CAN driver, from Marc Kleine-Budde.

10) The removal of the conditional compilation of the clk support code
    in the stmmac driver broke things.  This is because the interfaces
    used are the ones that don't also perform the enable/disable of the
    clk.  Fix from Stefan Roese.

11) The QFQ packet scheduler can record out of range virtual start
    times, resulting later in misbehavior and even crashes.  Fix from
    Paolo Valente.

12) If MSG_WAITALL is used with IOAT DMA under TCP, we can wedge the
    receiver when the advertised receive window goes to zero.  Detect
    this case and force the processing of the IOAT DMA queue when it
    happens to avoid getting stuck.  Fix from Michal Kubecek.

13) batman-adv assumes that test_bit() returns only 0 or 1, but this is
    not true for x86 (which returns -1 or 0, via the 'sbb' instruction).
    Fix from Linus Lussing.

14) Fix small packet corruption in e1000, from Tushar Dave.

15) make_blackhole() in the IPSEC policy code can do one read unlock too
    many, fix from Li RongQing.

16) The new tcp_try_coalesce() code introduced a bug in TCP URG
    handling, fix from Eric Dumazet.

17) Fix memory leak in __netif_receive_skb() when doing zerocopy and
    when hit an OOM condition.  From Michael S Tsirkin.

18) netxen blindly deferences pdev->bus->self, which is not guarenteed
    to be non-NULL.  Fix from Nikolay Aleksandrov.

19) Fix a performance regression caused by mistakes in ipv6 checksum
    validation in the bnx2x driver, fix from Michal Schmidt.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
  net/stmmac: Use clk_prepare_enable and clk_disable_unprepare
  net: change return values from -EACCES to -EPERM
  net/irda: sh_sir: fix return value check in sh_sir_set_baudrate()
  stmmac: fix return value check in stmmac_open_ext_timer()
  gianfar: fix phc index build failure
  ipv6: fix return value check in fib6_add()
  bnx2x: remove false warning regarding interrupt number
  can: ti_hecc: fix oops during rmmod
  can: janz-ican3: fix support for older hardware revisions
  net: do not disable sg for packets requiring no checksum
  aoe: assert AoE packets marked as requiring no checksum
  at91ether: return PTR_ERR if call to clk_get fails
  xfrm_user: don't copy esn replay window twice for new states
  xfrm_user: ensure user supplied esn replay window is valid
  xfrm_user: fix info leak in copy_to_user_tmpl()
  xfrm_user: fix info leak in copy_to_user_policy()
  xfrm_user: fix info leak in copy_to_user_state()
  xfrm_user: fix info leak in copy_to_user_auth()
  net: qmi_wwan: adding Huawei E367, ZTE MF683 and Pantech P4200
  tcp: restore rcv_wscale in a repair mode (v2)
  ...

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Fri, 21 Sep 2012 21:31:50 +0000 (14:31 -0700)]
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc updates from David Miller:

1) Debugging builds on 32-bit sparc need to handle the R_SPARC_DISP32
   relocation, not just 64-bit sparc.  From Andreas Larsson.

2) Wei Yongjun noticed that module_alloc() on sparc can return an
   error pointer, but that's not allowed.  module_alloc() should
   return only a valid pointer, or NULL.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: fix the return value of module_alloc()
  sparc32: Enable the relocation target R_SPARC_DISP32 for sparc32

12 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 21 Sep 2012 21:26:23 +0000 (14:26 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Small fixlets"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/init.c: Fix devmem_is_allowed() off by one
  x86/kconfig: Remove outdated reference to Intel CPUs in CONFIG_SWIOTLB

12 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 21 Sep 2012 21:25:46 +0000 (14:25 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "One more timekeeping fix for v3.6"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time: Fix timeekeping_get_ns overflow on 32bit systems

12 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 21 Sep 2012 21:24:48 +0000 (14:24 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Small perf fixlets"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tracing: Don't call page_to_pfn() if page is NULL
  perf/x86: Fix Intel Ivy Bridge support
  perf/x86/ibs: Check syscall attribute flags
  perf/x86: Export Sandy Bridge uncore clockticks event in sysfs

12 years agoMerge tag 'for-linus-v3.6-rc7' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Fri, 21 Sep 2012 19:43:01 +0000 (12:43 -0700)]
Merge tag 'for-linus-v3.6-rc7' of git://oss.sgi.com/xfs/xfs

Pull xfs bugfixes from Ben Myers:
 - fix a regression related to xfs_sync_worker racing with unmount.
 - fix a race while discarding xfs buffers.

* tag 'for-linus-v3.6-rc7' of git://oss.sgi.com/xfs/xfs:
  xfs: stop the sync worker before xfs_unmountfs
  xfs: fix race while discarding buffers [V4]

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 21 Sep 2012 19:41:28 +0000 (12:41 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Fixes for big 3 drivers:

  nouveau: revert earlier MBP fix, put a dmi based MBP fix in its place
  (fixes a regression we found on some Dell eDP panels doing some
  internal testing)

  radeon: revert pll fixes, real fix is too invasive, fix scratch leak

  intel: 3 minor fixes, one for HDMI audio."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: add dmi quirk for gpio reset
  drm/radeon: Prevent leak of scratch register on resume from suspend
  Revert "drm/nv50-/gpio: initialise to vbios defaults during init"
  Revert "drm/radeon: rework pll selection (v3)"
  drm/i915: HDMI - Clear Audio Enable bit for Hot Plug
  drm/i915: Reduce a pin-leak BUG into a WARN
  drm/i915: enable lvds pin pairs before dpll on gen2

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Fri, 21 Sep 2012 19:39:28 +0000 (12:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:
 "Updates for the input subsystem.  Just a few driver updates mostly
  dealing with recent regressions."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: edt-ft5x06 - return -EFAULT on copy_to_user() error
  Input: sentelic - filter out erratic movement when lifting finger
  Input: ambakmi - [un]prepare clocks when enabling amd disabling
  Input: i8042 - disable mux on Toshiba C850D
  Revert "input: ab8500-ponkey: Create AB8500 domain IRQ mapping"
  Input: imx_keypad - fix missing clk conversions
  Input: usbtouchscreen - initialize eGalax devices

12 years agoMerge git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Fri, 21 Sep 2012 19:36:23 +0000 (12:36 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixes from Wim Van Sebroeck:
 "Fix a kdump issue in hpwdt and a possible NULL dereference."

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: move the dereference below the NULL test
  hpwdt: Fix kdump issue in hpwdt

12 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Fri, 21 Sep 2012 19:33:31 +0000 (12:33 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 - Add missing 'name' sysfs attributes to ad7314 and ads7871 drivers
 - Bump maximum wait time for applesmc driver (again)
 - Fix build warning seen with W=1 in include/linux/kernel.h, introduced
   with commit b6d86d3d6d6e ("Fix DIV_ROUND_CLOSEST to support negative
   dividends")

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  linux/kernel.h: Fix warning seen with W=1 due to change in DIV_ROUND_CLOSEST
  hwmon: (applesmc) Bump max wait
  hwmon: (ad7314) Add 'name' sysfs attribute
  hwmon: (ads7871) Add 'name' sysfs attribute

12 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Fri, 21 Sep 2012 19:15:37 +0000 (12:15 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "There are two trivial fixes in pl330 driver and two in at_hdmac
  driver."

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  DMA: PL330: Check the pointer returned by kzalloc
  DMA: PL330: Fix potential NULL pointer dereference in pl330_submit_req()
  dmaengine: at_hdmac: check that each sg data length is non-null
  dmaengine: at_hdmac: fix comment in atc_prep_slave_sg()

12 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Fri, 21 Sep 2012 19:14:47 +0000 (12:14 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull arm-soc bug fixes from Olof Johansson:
 "A couple of samsung clock locking fixes, at91 device tree gpio
  configuration fix and a couple more for shmobile and i.MX.

  All small targeted fixes."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM i.MX25: Make timer irq work again
  ARM: imx: armadillo5x0: Fix illegal register access
  ARM: shmobile: kzm9g: bugfix: correct mmcif interrupt settings
  ARM: SAMSUNG: Use spin_lock_{irqsave,irqrestore} in clk_set_rate
  ARM: at91: fix missing #interrupt-cells on gpio-controller
  ARM: SAMSUNG: use spin_lock_irqsave() in clk_set_parent

12 years agosparc: fix the return value of module_alloc()
Wei Yongjun [Thu, 20 Sep 2012 18:57:51 +0000 (18:57 +0000)]
sparc: fix the return value of module_alloc()

In case of error, function module_alloc() in other platform never
returns ERR_PTR(), and all of the user only check for NULL, so
we'd better return NULL instead of ERR_PTR().

dpatch engine is used to auto generated this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosparc32: Enable the relocation target R_SPARC_DISP32 for sparc32
Andreas Larsson [Mon, 17 Sep 2012 19:59:52 +0000 (19:59 +0000)]
sparc32: Enable the relocation target R_SPARC_DISP32 for sparc32

GNU Binutils 2.20.1 generates .eh_frame sections that uses R_SPARC_DISP32.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 21 Sep 2012 19:10:17 +0000 (12:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Martin Schwidefsky:
 "Bug fixes for 3.6-rc7, including some important patches for large page
  related memory management issues."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/dasd: fix read unit address configuration loop
  s390/dasd: fix pathgroup race
  s390/mm: fix user access page-table walk code
  s390/hwcaps: do not report high gprs for 31 bit kernel
  s390/cio: invalidate cdev pointer before deregistration
  s390/cio: fix IO subchannel event race
  s390/dasd: move wake_up call
  s390/hugetlb: use direct TLB flushing for hugetlbfs pages
  s390/mm: fix deadlock in unmap_hugepage_range()

12 years agoMerge tag 'stable/for-linus-3.6-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 21 Sep 2012 19:06:54 +0000 (12:06 -0700)]
Merge tag 'stable/for-linus-3.6-rc6-tag' of git://git./linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 - Fix M2P batching re-using the incorrect structure field.

   In v3.5 we added batching for M2P override (Machine Frame Number ->
   Physical Frame Number), but the original MFN was saved in an
   incorrect structure - and we would oops/restore when restoring with
   the old MFN.

 - Disable BIOS SMP MP table search.

   A bootup issue that we had ignored until we found that on DL380 G6 it
   was needed.

* tag 'stable/for-linus-3.6-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/boot: Disable BIOS SMP MP table search.
  xen/m2p: do not reuse kmap_op->dev_bus_addr