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Author SHA1 Message Date
David S. Miller
00e3d2ef18 wireless-drivers patches for 4.6
Major changes:
 
 ath10k
 
 * dt: add bindings for ipq4019 wifi block
 * start adding support for qca4019 chip
 
 ath9k
 
 * add device ID for Toshiba WLM-20U2/GN-1080
 * allow more than one interface on DFS channels
 
 bcma
 
 * move flash detection code to ChipCommon core driver
 
 brcmfmac
 
 * IPv6 Neighbor discovery offload
 * driver settings that can be populated from different sources
 * country code setting in firmware
 * length checks to validate firmware events
 * new way to determine device memory size needed for BCM4366
 * various offloads during Wake on Wireless LAN (WoWLAN)
 * full Management Frame Protection (MFP) support
 
 iwlwifi
 
 * add support for thermal device / cooling device
 * improvements in scheduled scan without profiles
 * new firmware support (-21.ucode)
 * add MSIX support for 9000 devices
 * enable MU-MIMO and take care of firmware restart
 * add support for large SKBs in mvm to reach A-MSDU
 * add support for filtering frames from a BA session
 * start implementing the new Rx path for 9000 devices
 * enable the new Radio Resource Management (RRM) nl80211 feature flag
 * add a new module paramater to disable VHT
 * build infrastructure for Dynamic Queue Allocation
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Merge tag 'wireless-drivers-next-for-davem-2016-03-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers patches for 4.6

Major changes:

ath10k

* dt: add bindings for ipq4019 wifi block
* start adding support for qca4019 chip

ath9k

* add device ID for Toshiba WLM-20U2/GN-1080
* allow more than one interface on DFS channels

bcma

* move flash detection code to ChipCommon core driver

brcmfmac

* IPv6 Neighbor discovery offload
* driver settings that can be populated from different sources
* country code setting in firmware
* length checks to validate firmware events
* new way to determine device memory size needed for BCM4366
* various offloads during Wake on Wireless LAN (WoWLAN)
* full Management Frame Protection (MFP) support

iwlwifi

* add support for thermal device / cooling device
* improvements in scheduled scan without profiles
* new firmware support (-21.ucode)
* add MSIX support for 9000 devices
* enable MU-MIMO and take care of firmware restart
* add support for large SKBs in mvm to reach A-MSDU
* add support for filtering frames from a BA session
* start implementing the new Rx path for 9000 devices
* enable the new Radio Resource Management (RRM) nl80211 feature flag
* add a new module paramater to disable VHT
* build infrastructure for Dynamic Queue Allocation
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 15:03:34 -04:00
David S. Miller
f22f5f6060 Merge branch 'net-minor-cleanups-and-optimizations'
Alexander Duyck says:

====================
A couple of minor clean-ups and optimizations

This patch series is basically just a v2 of a couple patches I recently
submitted.

The two patches aren't technically related but there are just items I found
while cleaning up and prepping some further work to enable Tx checksums for
tunnels.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 15:01:00 -04:00
Alexander Duyck
338039635d csum: Update csum_block_add to use rotate instead of byteswap
The code for csum_block_add was doing a funky byteswap to swap the even and
odd bytes of the checksum if the offset was odd.  Instead of doing this we
can save ourselves some trouble and just shift by 8 as this should have the
same effect in terms of the final checksum value and only requires one
instruction.

In addition we can update csum_block_sub to just use csum_block_add with a
inverse value for csum2.  This way we follow the same code path as
csum_block_add without having to duplicate it.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 15:01:00 -04:00
Alexander Duyck
c194cf93c1 gro: Defer clearing of flush bit in tunnel paths
This patch updates the GRO handlers for GRE, VXLAN, GENEVE, and FOU so that
we do not clear the flush bit until after we have called the next level GRO
handler.  Previously this was being cleared before parsing through the list
of frames, however this resulted in several paths where either the bit
needed to be reset but wasn't as in the case of FOU, or cases where it was
being set as in GENEVE.  By just deferring the clearing of the bit until
after the next level protocol has been parsed we can avoid any unnecessary
bit twiddling and avoid bugs.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 15:01:00 -04:00
Lionel Landwerlin
c1f415c9ac drm: atomic helper: do not unreference error pointer
562c5b4d89 didn't quite fix the issue of dealing with an error
pointer. We can't free/unref an error pointer so reset it to NULL.

Many thanks to Dan Carpenter for pointing this out again.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Daniel Stone <daniels@collabora.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: dri-devel@lists.freedesktop.org
Fixes: 562c5b4d89 ("drm: fix blob pointer check")
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1457698646-22231-1-git-send-email-lionel.g.landwerlin@intel.com
2016-03-13 19:39:54 +01:00
Ville Syrjälä
7c01878254 drm/edid: Extract SADs properly from multiple audio data blocks
SADs may span multiple CEA audio data blocks in the EDID.

CEA-861-E says:
"The order of the Data Blocks is not constrained. It is also possible
to have more than one of a specific type of data block if necessary to
include all of the descriptors needed to describe the sink’s capabilities."

Each audio data block can carry up to 10 SADs, whereas the ELD SAD limit
is 15 according to HDA 1.0a spec. So we should support at least two data
blocks. And apparently some devices take a more liberal interpretation
and stuff only one SAD per data block even when they would fit into one.

So let's try to extract all the SADs we can fit into the ELD even when
they span multiple data blocks.

While at it, toss in a comment to explain the 13 byte monitor name
string limit which confused me at first.

Cc: Arturo Pérez <artur999555@gmail.com>
Tested-by: Arturo Pérez <artur999555@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94197
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1457554066-8739-1-git-send-email-ville.syrjala@linux.intel.com
2016-03-13 19:36:17 +01:00
James Hogan
d825c06bfe MIPS: smp.c: Fix uninitialised temp_foreign_map
When calculate_cpu_foreign_map() recalculates the cpu_foreign_map
cpumask it uses the local variable temp_foreign_map without initialising
it to zero. Since the calculation only ever sets bits in this cpumask
any existing bits at that memory location will remain set and find their
way into cpu_foreign_map too. This could potentially lead to cache
operations suboptimally doing smp calls to multiple VPEs in the same
core, even though the VPEs share primary caches.

Therefore initialise temp_foreign_map using cpumask_clear() before use.

Fixes: cccf34e941 ("MIPS: c-r4k: Fix cache flushing for MT cores")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12759/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-03-13 10:59:19 +01:00
Hauke Mehrtens
7a50e4688d MIPS: Fix build error when SMP is used without GIC
The MIPS_GIC_IPI should only be selected when MIPS_GIC is also
selected, otherwise it results in a compile error. smp-gic.c uses some
functions from include/linux/irqchip/mips-gic.h like
plat_ipi_call_int_xlate() which are only added to the header file when
MIPS_GIC is set. The Lantiq SoC does not use the GIC, but supports SMP.
The calls top the functions from smp-gic.c are already protected by
some #ifdefs

The first part of this was introduced in commit 72e20142b2 ("MIPS:
Move GIC IPI functions out of smp-cmp.c")

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: stable@vger.kernel.org # v3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12774/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-03-13 10:56:48 +01:00
James Hogan
4b7b1ef2c2 ld-version: Fix awk regex compile failure
The ld-version.sh script fails on some versions of awk with the
following error, resulting in build failures for MIPS:

awk: scripts/ld-version.sh: line 4: regular expression compile failed (missing '(')

This is due to the regular expression ".*)", meant to strip off the
beginning of the ld version string up to the close bracket, however
brackets have a meaning in regular expressions, so lets escape it so
that awk doesn't expect a corresponding open bracket.

Fixes: ccbef1674a ("Kbuild, lto: add ld-version and ld-ifversion ...")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Tested-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Cc: Michal Marek <mmarek@suse.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # 4.4.x-
Patchwork: https://patchwork.linux-mips.org/patch/12838/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-03-13 10:54:42 +01:00
Aaro Koskinen
ba9e72c229 MIPS: Fix build with DEBUG_ZBOOT and MACH_JZ4780
Ingenic SoC declares ZBOOT support, but debug definitions are missing
for MACH_JZ4780 resulting in a build failure when DEBUG_ZBOOT is set.
The UART addresses are same as with JZ4740, so fix by covering JZ4780
with those as well.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12830/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-03-13 10:50:46 +01:00
Chen Yu
685b535b2c tools/power turbostat: bugfix: TDP MSRs print bits fixing
MSR_CONFIG_TDP_NOMINAL:
should print all 8 bits of base_ratio (bit 0:7) 0xFF

MSR_CONFIG_TDP_LEVEL_1:
should print all 15 bits of PKG_MIN_PWR_LVL1 (bit 48:62) 0x7FFF
should print all 15 bits of PKG_MAX_PWR_LVL1 (bit 32:46) 0x7FFF
should print all 8 bits of LVL1_RATIO (bit 16:23) 0xFF
should print all 15 bits of PKG_TDP_LVL1 (bit 0:14) 0x7FFF

And the same modification to MSR_CONFIG_TDP_LEVEL_2.

MSR_TURBO_ACTIVATION_RATIO:
should print all 8 bits of MAX_NON_TURBO_RATIO (bit 0:7) 0xFF

Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 04:22:57 -04:00
Len Brown
6c34f160df tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump
MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008008 (...pkg-cstate-limit=0: unlimited)
should print as
MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008008 (...pkg-cstate-limit=8: unlimited)

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 04:22:47 -04:00
Mark Brown
768e66686c Merge remote-tracking branches 'regulator/topic/s5m8767' and 'regulator/topic/vexpress' into regulator-next 2016-03-13 15:20:14 +07:00
Mark Brown
41eeb34acd Merge remote-tracking branches 'regulator/topic/mt6397', 'regulator/topic/of', 'regulator/topic/pv88060', 'regulator/topic/pwm' and 'regulator/topic/s2mps11' into regulator-next 2016-03-13 15:20:00 +07:00
Mark Brown
d6d50a8f17 Merge remote-tracking branches 'regulator/topic/ltc3589', 'regulator/topic/max77620', 'regulator/topic/max77686', 'regulator/topic/max77802' and 'regulator/topic/maxim' into regulator-next 2016-03-13 15:19:47 +07:00
Mark Brown
d1f83021d5 Merge remote-tracking branches 'regulator/topic/discharge', 'regulator/topic/fan53555', 'regulator/topic/gpio', 'regulator/topic/hi655x' and 'regulator/topic/lp872x' into regulator-next 2016-03-13 15:19:35 +07:00
Mark Brown
92aa18f88c Merge remote-tracking branches 'regulator/topic/act8865', 'regulator/topic/act8945a', 'regulator/topic/axp20x' and 'regulator/topic/cs4271' into regulator-next 2016-03-13 15:19:24 +07:00
Mark Brown
c155e0ab13 Merge remote-tracking branch 'regulator/topic/core' into regulator-next 2016-03-13 15:19:22 +07:00
Mark Brown
905373b637 Merge remote-tracking branches 'regulator/fix/ad5398', 'regulator/fix/da9210', 'regulator/fix/max77802' and 'regulator/fix/pv88090' into regulator-linus 2016-03-13 15:19:09 +07:00
Mark Brown
58658659ee Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2016-03-13 15:19:06 +07:00
Mark Brown
d4a6360f19 Merge remote-tracking branches 'asoc/topic/sunxi', 'asoc/topic/topology' and 'asoc/topic/wm8974' into asoc-next 2016-03-13 15:17:56 +07:00
Mark Brown
b25d2803e9 Merge remote-tracking branches 'asoc/topic/rt5640', 'asoc/topic/rt5659', 'asoc/topic/samsung' and 'asoc/topic/ssm4567' into asoc-next 2016-03-13 15:17:47 +07:00
Mark Brown
4bfd5ba31f Merge remote-tracking branches 'asoc/topic/rcar', 'asoc/topic/rockchip', 'asoc/topic/rt298', 'asoc/topic/rt5514' and 'asoc/topic/rt5616' into asoc-next 2016-03-13 15:17:35 +07:00
Mark Brown
f2d4c127f7 Merge remote-tracking branches 'asoc/topic/pxa' and 'asoc/topic/qcom' into asoc-next 2016-03-13 15:17:28 +07:00
Mark Brown
88f183484a Merge remote-tracking branches 'asoc/topic/max98926', 'asoc/topic/mtk', 'asoc/topic/mxs-saif', 'asoc/topic/nau8825' and 'asoc/topic/omap' into asoc-next 2016-03-13 15:17:18 +07:00
Mark Brown
ab96d9d603 Merge remote-tracking branches 'asoc/topic/fsl-sai', 'asoc/topic/fsl-ssl', 'asoc/topic/hdac' and 'asoc/topic/max9867' into asoc-next 2016-03-13 15:17:09 +07:00
Mark Brown
6fee37df02 Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/fsl-card' and 'asoc/topic/fsl-mpc5200' into asoc-next 2016-03-13 15:17:01 +07:00
Mark Brown
a391dbe09a Merge remote-tracking branches 'asoc/topic/atmel', 'asoc/topic/bcm2835' and 'asoc/topic/cs42xx8' into asoc-next 2016-03-13 15:16:53 +07:00
Mark Brown
343b890871 Merge remote-tracking branches 'asoc/topic/ab8500', 'asoc/topic/adau17x1', 'asoc/topic/ads117x', 'asoc/topic/adsp' and 'asoc/topic/arizona' into asoc-next 2016-03-13 15:16:41 +07:00
Mark Brown
17bcf095d8 Merge remote-tracking branch 'asoc/topic/rt5645' into asoc-next 2016-03-13 15:16:38 +07:00
Mark Brown
95d7ff56d4 Merge remote-tracking branch 'asoc/topic/pcm3168a' into asoc-next 2016-03-13 15:16:36 +07:00
Mark Brown
19142ae671 Merge remote-tracking branch 'asoc/topic/pcm179x' into asoc-next 2016-03-13 15:16:33 +07:00
Mark Brown
fc122f63d0 Merge remote-tracking branch 'asoc/topic/pcm' into asoc-next 2016-03-13 15:16:30 +07:00
Mark Brown
df91a2100c Merge remote-tracking branch 'asoc/topic/intel' into asoc-next 2016-03-13 15:16:26 +07:00
Mark Brown
a1eb30008c Merge remote-tracking branch 'asoc/topic/dapm' into asoc-next 2016-03-13 15:16:24 +07:00
Mark Brown
89595f5e29 Merge remote-tracking branch 'asoc/topic/core-pcm' into asoc-next 2016-03-13 15:16:21 +07:00
Mark Brown
977011ea0c Merge remote-tracking branch 'asoc/topic/core' into asoc-next 2016-03-13 15:16:19 +07:00
Mark Brown
e87fb3b117 ASoC: Fixes for v4.5
This is far too big a set of fixes for this late in the release cycle
 but the overwhelming bulk is essentially the same simple fix from
 Takashi for a cut'n'pasted 64 bit cleanliness issue in the userspace
 interface where drivers were accessing things using the wrong element in
 a union which worked OK on 32 bit platforms as the correct element
 happened to be aligned the same way but with 64 bit platforms ABIs are
 different and the two members of the union are laid out in different
 places.  They aren't all tagged to stable since some of these chips have
 vanishingly little chance of being used in 64 bit systems.
 
 The other changes are:
  - A fix for Qualcomm devices to work on big endian systems.  The
    original change is actually correct but triggered a bug in regmap
    which is too invasive to fix for this cycle and can be worked around
    by just letting regmap pick the default.
  - A fix for the Samsung I2S driver locking which wasn't using IRQ safe
    spinlocks when it needed to.
  - A fix for the new Intel Sky Lake driver forgetting that C pointer
    arithmetic takes the type of the pointer into consideration.
  - A revert of a change to the FSL SSI driver that broke some systems.
  - A fix for the cleanup path of the wm9713 driver.
  - A fix for some incorrect register definitions in the ADAU17x1 driver
    that caused misclocking in some configurations.
  - A fix for the tracepoints for jack detection to avoid using an
    internal field of the core jack structure which is no longer present
    in all configurations.
  - A fix for another of the new Intel drivers which tried to write to a
    string literal.
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Merge tag 'asoc-fix-v4.5-rc6' into asoc-linus

ASoC: Fixes for v4.5

This is far too big a set of fixes for this late in the release cycle
but the overwhelming bulk is essentially the same simple fix from
Takashi for a cut'n'pasted 64 bit cleanliness issue in the userspace
interface where drivers were accessing things using the wrong element in
a union which worked OK on 32 bit platforms as the correct element
happened to be aligned the same way but with 64 bit platforms ABIs are
different and the two members of the union are laid out in different
places.  They aren't all tagged to stable since some of these chips have
vanishingly little chance of being used in 64 bit systems.

The other changes are:
 - A fix for Qualcomm devices to work on big endian systems.  The
   original change is actually correct but triggered a bug in regmap
   which is too invasive to fix for this cycle and can be worked around
   by just letting regmap pick the default.
 - A fix for the Samsung I2S driver locking which wasn't using IRQ safe
   spinlocks when it needed to.
 - A fix for the new Intel Sky Lake driver forgetting that C pointer
   arithmetic takes the type of the pointer into consideration.
 - A revert of a change to the FSL SSI driver that broke some systems.
 - A fix for the cleanup path of the wm9713 driver.
 - A fix for some incorrect register definitions in the ADAU17x1 driver
   that caused misclocking in some configurations.
 - A fix for the tracepoints for jack detection to avoid using an
   internal field of the core jack structure which is no longer present
   in all configurations.
 - A fix for another of the new Intel drivers which tried to write to a
   string literal.

# gpg: Signature made Mon 07 Mar 2016 09:41:48 ICT using RSA key ID 5D5487D0
# gpg: key CD7BEEBC: no public key for trusted key - skipped
# gpg: key CD7BEEBC marked as ultimately trusted
# gpg: key AF88CD16: no public key for trusted key - skipped
# gpg: key AF88CD16 marked as ultimately trusted
# gpg: key 16005C11: no public key for trusted key - skipped
# gpg: key 16005C11 marked as ultimately trusted
# gpg: key 5621E907: no public key for trusted key - skipped
# gpg: key 5621E907 marked as ultimately trusted
# gpg: key 5C6153AD: no public key for trusted key - skipped
# gpg: key 5C6153AD marked as ultimately trusted
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>"
# gpg:                 aka "Mark Brown <broonie@debian.org>"
# gpg:                 aka "Mark Brown <broonie@kernel.org>"
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg:                 aka "Mark Brown <broonie@linaro.org>"
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>"
2016-03-13 15:16:11 +07:00
Len Brown
5aea2f7f64 tools/power turbostat: call __cpuid() instead of __get_cpuid()
turbostat already checks whether calling each cpuid leavf is legal,
and it doesn't look at the function return value,
so call the simpler gcc intrinsic __cpuid() instead of __get_cpuid().

syntax only, no functional change

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:42 -04:00
Len Brown
aa8d8cc79a tools/power turbostat: indicate SMX and SGX support
SGX presence is related to a SKL power workaround,
so lets show when that is enabled.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:42 -04:00
Len Brown
0102b06747 tools/power turbostat: detect and work around syscall jitter
The accuracy of Bzy_Mhz and Busy% depend on reading
the TSC, APERF, and MPERF close together in time.

When there is a very short measurement interval,
or a large system is profoundly idle, the changes
in APERF and MPERF may be very small.
They can be small enough that an expensive interrupt
between reading APERF and MPERF can cause the APERF/MPERF
ratio to become inaccurate, resulting in invalid
calculation and display of Bzy_MHz.

A dummy APERF read of APERF makes this problem
much more rare.  Apparently this 1st systemn call
after exiting a long stretch of idle is when we
typically see expensive timer interrupts that cause
large jitter.

For the cases that dummy APERF read fails to prevent,
we compare the latency of the APERF and MPERF reads.
If they differ by more than 2x, we re-issue them.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:41 -04:00
Len Brown
fdf676e51f tools/power turbostat: show GFX%rc6
The column "GFX%c6" show the percentage of time the GPU
is in the "render C6" state, rc6.  Deep package C-states on several
systems depend on the GPU being in RC6.

This information comes from the counter
/sys/class/drm/card0/power/rc6_residency_ms,
as read before and after the measurement interval.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:41 -04:00
Len Brown
27d47356b6 tools/power turbostat: show GFXMHz
Under the column "GFXMHz", show a snapshot of this attribute:
/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz

This is an instantaneous snapshot of what sysfs presents
at the end of the measurement interval.  turbostat does
not average or otherwise perform any math on this value.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:40 -04:00
Len Brown
562a2d377b tools/power turbostat: show IRQs per CPU
The new IRQ column shows how many interrupts have occurred on each CPU
during the measurement inteval.  This information comes from
the difference between /proc/interrupts shapshots made before
and after the measurement interval.

The first row, the system summary, shows the sum of the IRQS
for all CPUs during that interval.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:40 -04:00
Len Brown
36229897ba tools/power turbostat: make fewer systems calls
skip the open(2)/close(2) on each msr read
by keeping the /dev/cpu/*/msr files open.

The remaining read(2) is generally far fewer cycles
than the removed open(2) system call.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:40 -04:00
Len Brown
58cc30a4e6 tools/power turbostat: fix compiler warnings
Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:39 -04:00
Len Brown
b7d8c1483b tools/power turbostat: add --out option for saving output in a file
By default...

Turbostat --debug gconfiguration info goes to stderr.

In FORK mode, turbostat statistics go to stderr.

In PERIODIC mode, turbostat statistics go to stdout.

These defaults do not change, but an option "--out file"
will send all output above only to the specified file.

Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:39 -04:00
Len Brown
75d2e44e60 tools/power turbostat: re-name "%Busy" field to "Busy%"
some tools processing turbostat output
have difficulty with items that begin with %...

Reported-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:38 -04:00
Hubert Chrzaniuk
cbf97abaf3 tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding
Following changes have been made:
- changed MSR_NHM_TURBO_RATIO_LIMIT to MSR_TURBO_RATIO_LIMIT in debug print
  for consistency with Developer Manual
- updated definition of bitfields in MSR_TURBO_RATIO_LIMIT and appropriate
  parsing code
- added x200 to list of architectures that do not support Nahlem compatible
  definition of MSR_TURBO_RATIO_LIMIT register (x200 has the register but
  bits definition is custom)
- fixed typo in code that parses MSR_TURBO_RATIO_LIMIT
  (logical instead of bitwise operator)
- changed MSR_TURBO_RATIO_LIMIT parsing algorithm so the print out had the
  same order as implementations for other platforms

Signed-off-by: Hubert Chrzaniuk <hubert.chrzaniuk@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:38 -04:00
Chrzaniuk, Hubert
121b48bb77 tools/power turbostat: Intel Xeon x200: fix erroneous bclk value
x200 does not enable any way to programmatically obtain bus clock
speed. Bclk for the architecture has a fixed value of 100 MHz.
At the same time x200 cannot be included in has_snb_msrs since
it does not support C7 idle state.

prior to this patch, MHz values reported on this chip
were erroneously calculated using bclk of 133MHz,
causing MHz values to be reported 33% higher than actual.

Signed-off-by: Hubert Chrzaniuk <hubert.chrzaniuk@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2016-03-13 03:55:37 -04:00