Pull x86 mm updates from Ingo Molnar:
"The dominant change in this cycle was the continued work to isolate
kernel drivers from MTRR legacies: this tree gets rid of all kernel
internal driver interfaces to MTRRs (mostly by rewriting it to proper
PAT interfaces), the only access left is the /proc/mtrr ABI.
This work was done by Luis R Rodriguez.
There's also some related PCI interface additions for which I've
Cc:-ed Bjorn"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86/mm/mtrr: Remove kernel internal MTRR interfaces: unexport mtrr_add() and mtrr_del()
s390/io: Add pci_iomap_wc() and pci_iomap_wc_range()
drivers/dma/iop-adma: Use dma_alloc_writecombine() kernel-style
drivers/video/fbdev/vt8623fb: Use arch_phys_wc_add() and pci_iomap_wc()
drivers/video/fbdev/s3fb: Use arch_phys_wc_add() and pci_iomap_wc()
drivers/video/fbdev/arkfb.c: Use arch_phys_wc_add() and pci_iomap_wc()
PCI: Add pci_iomap_wc() variants
drivers/video/fbdev/gxt4500: Use pci_ioremap_wc_bar() to map framebuffer
drivers/video/fbdev/kyrofb: Use arch_phys_wc_add() and pci_ioremap_wc_bar()
drivers/video/fbdev/i740fb: Use arch_phys_wc_add() and pci_ioremap_wc_bar()
PCI: Add pci_ioremap_wc_bar()
x86/mm: Make kernel/check.c explicitly non-modular
x86/mm/pat: Make mm/pageattr[-test].c explicitly non-modular
x86/mm/pat: Add comments to cachemode translation tables
arch/*/io.h: Add ioremap_uc() to all architectures
drivers/video/fbdev/atyfb: Use arch_phys_wc_add() and ioremap_wc()
drivers/video/fbdev/atyfb: Replace MTRR UC hole with strong UC
drivers/video/fbdev/atyfb: Clarify ioremap() base and length used
drivers/video/fbdev/atyfb: Carve out framebuffer length fudging into a helper
x86/mm, asm-generic: Add IOMMU ioremap_uc() variant default
...
Pull x86 irq fixlet from Ingo Molnar:
"A single change that hides the 'HYP:' line in /proc/interrupts when
it's unused"
* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/irq: Hide 'HYP:' line in /proc/interrupts when not on Xen/Hyper-V
Pull x86 cpu updates from Ingo Molnar:
"Two changes: a suspend/resume quirk and a new CPUID bit definition"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpufeature: Add feature bit for Intel's Silicon Debug CPUID bit
x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume
Pull x86 init code fixlet from Ingo Molnar:
"A single change: fix obsolete init code annotations"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Drop bogus __ref / __refdata annotations
Pull x86 build fixlet from Ingo Molnar:
"A single change propagating CONFIG_JUMP_LABEL into the x86 defconfigs"
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kconfig: Enable CONFIG_JUMP_LABEL in the defconfigs
Pull x86 boot updates from Ingo Molnar:
"The main x86 bootup related changes in this cycle were:
- more boot time optimizations. (Len Brown)
- implement hex output to allow the debugging of early bootup
parameters. (Kees Cook)
- remove obsolete MCA leftovers. (Paolo Pisati)"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/smpboot: Remove APIC.wait_for_init_deassert and atomic init_deasserted
x86/smpboot: Remove SIPI delays from cpu_up()
x86/smpboot: Remove udelay(100) when polling cpu_callin_map
x86/smpboot: Remove udelay(100) when polling cpu_initialized_map
x86/boot: Obsolete the MCA sys_desc_table
x86/boot: Add hex output for debugging
I hit following building error randomly:
...
/bin/sh: /path/to/kernel/buildperf/util/intel-pt-decoder/inat-tables.c: No such file or directory
...
LINK /path/to/kernel/buildperf/plugin_mac80211.so
LINK /path/to/kernel/buildperf/plugin_kmem.so
LINK /path/to/kernel/buildperf/plugin_xen.so
LINK /path/to/kernel/buildperf/plugin_hrtimer.so
In file included from util/intel-pt-decoder/intel-pt-insn-decoder.c:25:0:
util/intel-pt-decoder/inat.c:24:25: fatal error: inat-tables.c: No such file or directory
#include "inat-tables.c"
^
compilation terminated.
make[4]: *** [/path/to/kernel/buildperf/util/intel-pt-decoder/intel-pt-insn-decoder.o] Error 1
make[4]: *** Waiting for unfinished jobs....
LINK /path/to/kernel/buildperf/plugin_function.so
This is caused by tools/perf/util/intel-pt-decoder/Build that, it tries
to generate $(OUTPUT)util/intel-pt-decoder/inat-tables.c atomatically
but forget to ensure the existance of $(OUTPUT)util/intel-pt-decoder
directory.
This patch fixes it by adding $(call rule_mkdir) like other similar rules.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1441087005-107540-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull x86 asm changes from Ingo Molnar:
"The biggest changes in this cycle were:
- Revamp, simplify (and in some cases fix) Time Stamp Counter (TSC)
primitives. (Andy Lutomirski)
- Add new, comprehensible entry and exit handlers written in C.
(Andy Lutomirski)
- vm86 mode cleanups and fixes. (Brian Gerst)
- 32-bit compat code cleanups. (Brian Gerst)
The amount of simplification in low level assembly code is already
palpable:
arch/x86/entry/entry_32.S | 130 +----
arch/x86/entry/entry_64.S | 197 ++-----
but more simplifications are planned.
There's also the usual laudry mix of low level changes - see the
changelog for details"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (83 commits)
x86/asm: Drop repeated macro of X86_EFLAGS_AC definition
x86/asm/msr: Make wrmsrl() a function
x86/asm/delay: Introduce an MWAITX-based delay with a configurable timer
x86/asm: Add MONITORX/MWAITX instruction support
x86/traps: Weaken context tracking entry assertions
x86/asm/tsc: Add rdtscll() merge helper
selftests/x86: Add syscall_nt selftest
selftests/x86: Disable sigreturn_64
x86/vdso: Emit a GNU hash
x86/entry: Remove do_notify_resume(), syscall_trace_leave(), and their TIF masks
x86/entry/32: Migrate to C exit path
x86/entry/32: Remove 32-bit syscall audit optimizations
x86/vm86: Rename vm86->v86flags and v86mask
x86/vm86: Rename vm86->vm86_info to user_vm86
x86/vm86: Clean up vm86.h includes
x86/vm86: Move the vm86 IRQ definitions to vm86.h
x86/vm86: Use the normal pt_regs area for vm86
x86/vm86: Eliminate 'struct kernel_vm86_struct'
x86/vm86: Move fields from 'struct kernel_vm86_struct' to 'struct vm86'
x86/vm86: Move vm86 fields out of 'thread_struct'
...
* pm-tools:
tools: cpupower: Fix error when running cpupower monitor
tools/power turbostat: fix typo on DRAM column in Joules-mode
cpupower: Do not change the frequency of offline cpu
tools/power turbostat: fix parameter passing for forked command
tools/power turbostat: dump CONFIG_TDP
tools/power turbostat: cpu0 is no longer hard-coded, so update output
tools/power turbostat: update turbostat(8)
* powercap:
powercap / RAPL: disable the 2nd power limit properly
powercap / RAPL: Add support for Broadwell-H
powercap / RAPL: Add support for Skylake H/S
* pm-sleep:
PM / suspend: make sync() on suspend-to-RAM build-time optional
PM / sleep: Allow devices without runtime PM to do direct-complete
PM / autosleep: Use workqueue for user space wakeup sources garbage collector
* pm-domains:
PM / Domains: Fix typo in description of genpd_dev_pm_detach()
PM / Domains: Remove unusable governor dummies
PM / Domains: Make pm_genpd_init() available to modules
PM / domains: Align column headers and data in pm_genpd_summary output
PM / Domains: Return -EPROBE_DEFER if we fail to init or turn-on domain
PM / Domains: Correct unit address in power-controller example
PM / Domains: Remove intermediate states from the power off sequence
* pm-avs:
PM / AVS: rockchip-io: add io selectors and supplies for rk3368
PM / AVS: rockchip-io: depend on CONFIG_POWER_AVS
* pm-cpuidle:
cpuidle/coupled: Remove redundant 'dev' argument of cpuidle_state_is_coupled()
cpuidle/coupled: Remove cpuidle_device::safe_state_index
intel_idle: Skylake Client Support
intel_idle: allow idle states to be freeze-mode specific
* pm-devfreq:
PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2
PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433
PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
* pm-clk:
PM / clk: don't return int on __pm_clk_enable()
* pm-opp:
PM / OPP: Drop unlikely before IS_ERR(_OR_NULL)
PM / OPP: Fix static checker warning (broken 64bit big endian systems)
PM / OPP: Free resources and properly return error on failure
cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled
cpufreq: dt: Add support for turbo/boost mode
cpufreq: dt: Add support for operating-points-v2 bindings
cpufreq: Allow drivers to enable boost support after registering driver
cpufreq: Update boost flag while initializing freq table from OPPs
PM / OPP: add dev_pm_opp_is_turbo() helper
PM / OPP: Add helpers for initializing CPU OPPs
PM / OPP: Add support for opp-suspend
PM / OPP: Add OPP sharing information to OPP library
PM / OPP: Add clock-latency-ns support
PM / OPP: Add support to parse "operating-points-v2" bindings
PM / OPP: Break _opp_add_dynamic() into smaller functions
PM / OPP: Allocate dev_opp from _add_device_opp()
PM / OPP: Create _remove_device_opp() for freeing dev_opp
PM / OPP: Relocate few routines
PM / OPP: Create a directory for opp bindings
PM / OPP: Update bindings to make opp-hz a 64 bit value
* pm-cpufreq: (53 commits)
cpufreq: speedstep-lib: Use monotonic clock
cpufreq: powernv: Increase the verbosity of OCC console messages
cpufreq: sfi: use kmemdup rather than duplicating its implementation
cpufreq: drop !cpufreq_driver check from cpufreq_parse_governor()
cpufreq: rename cpufreq_real_policy as cpufreq_user_policy
cpufreq: remove redundant 'policy' field from user_policy
cpufreq: remove redundant 'governor' field from user_policy
cpufreq: update user_policy.* on success
cpufreq: use memcpy() to copy policy
cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event
cpufreq: mediatek: Add MT8173 cpufreq driver
dt-bindings: mediatek: Add MT8173 CPU DVFS clock bindings
intel_pstate: append more Oracle OEM table id to vendor bypass list
intel_pstate: Add SKY-S support
intel_pstate: Fix possible overflow complained by Coverity
cpufreq: Correct a freq check in cpufreq_set_policy()
cpufreq: Lock CPU online/offline in cpufreq_register_driver()
cpufreq: Replace recover_policy with new_policy in cpufreq_online()
cpufreq: Separate CPU device registration from CPU online
cpufreq: powernv: Restore cpu frequency to policy->cur on unthrottling
...
Wall time obtained from do_gettimeofday is susceptible to sudden jumps due to
user setting the time or due to NTP.
Monotonic time is constantly increasing time better suited for comparing two
timestamps.
Signed-off-by: Abhilash Jindal <klock.android@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Driver is guaranteed to be present on a call to cpufreq_parse_governor()
and there is no need to check for !cpufreq_driver. Drop it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Its all about caching min/max freq requested by userspace, and
the name 'cpufreq_real_policy' doesn't fit that well. Rename it to
cpufreq_user_policy.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Its always same as policy->policy, and there is no need to keep another
copy of it. Remove it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Its always same as policy->governor, and there is no need to keep
another copy of it. Remove it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
'user_policy' caches properties of a policy that are set by userspace.
And these must be updated only if cpufreq core was successful in
updating them based on request from user space.
In store_scaling_governor(), we are updating user_policy.policy and
user_policy.governor even if cpufreq_set_policy() failed. That's
incorrect.
Fix this by updating user_policy.* only if we were successful in
updating the properties.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
cpufreq_get_policy() is useful if the pointer to policy isn't available
in advance. But if it is available, then there is no need to call
cpufreq_get_policy(). Directly use memcpy() to copy the policy.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
What's being done from CPUFREQ_INCOMPATIBLE, can also be done with
CPUFREQ_ADJUST. There is nothing special with CPUFREQ_INCOMPATIBLE
notifier.
Kill CPUFREQ_INCOMPATIBLE and fix its usage sites.
This also updates the numbering of notifier events to remove holes.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Mediatek MT8173 is an ARMv8 based quad-core (2*Cortex-A53 and
2*Cortex-A72) SoC with duall clusters. For each cluster, two voltage
inputs, Vproc and Vsram are supplied by two regulators. For the big
cluster, two regulators come from different PMICs. In this case, when
scaling voltage inputs of the cluster, the voltages of two regulator
inputs need to be controlled by software explicitly under the SoC
specific limitation:
100mV < Vsram - Vproc < 200mV
which is called 'voltage tracking' mechanism. And when scaling the
frequency of cluster clock input, the input MUX need to be parented to
another "intermediate" stable PLL first and reparented to the original
PLL once the original PLL is stable at the target frequency. This patch
implements those mechanisms to enable CPU DVFS support for Mediatek
MT8173 SoC.
Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Frank has agreed to step up and help with DT core code maintainership.
At the same time, Grant is taking a step back from active maintainership
responsibilities. Add Frank to the device tree core code entry and
shuffle Grant to the end of the list. In a few releases time Grant will
be removed entirely.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
The PXA architecture provides a DMA to pump data from the nand
controller to memory and the other way around. Add it to the binding
description.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
CPSW driver has multiple compatibles for errata implementations but not
documented, add necessary documentation.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Rob Herring <robh@kernel.org>
We were aborting if the kzalloc of img_swap fails but without freeing the
already allocated out. Similarly we were aborting if spi_sync fails
without releasing out and img_swap.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Both free_io_migration() and issue_discard() dereference a migration
that was just freed. Fix those by saving off the migrations's cache
object before freeing the migration. Also cleanup needless mg->cache
dereferences now that the cache object is available directly.
Fixes: e44b6a5a3c ("dm cache: move wake_waker() from free_migrations() to where it is needed")
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This patch introduces the use of managed resource function
devm_clk_get instead of clk_get and removes corresponding calls
to clk_put in the probe and remove functions.
To be compatible with the change various gotos are replaced with
direct returns, and unneeded label failed_put_clk is dropped.
Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Propagate error code on failure. Also changed %ld to %d in dev_err to use
ret variable rather than putting two calls to PTR_ERR.
A simplified version of the semantic match that finds the first problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The limit should be "PAGE_SIZE - len" instead of PAGE_SIZE. Also let's
use scnprintf() because snprintf() returns the number of bytes which
would have been printed if there were space and scnprintf() returns the
number of bytes actually printed.
I don't think we are ever going to actually hit this limit in real life.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Commit 0838aa7fcf ("netfilter: fix netns dependencies with conntrack
templates") migrated templates to the new allocator api, but forgot to
update error paths for them in CT and synproxy to use nf_ct_tmpl_free()
instead of nf_conntrack_free().
Due to that, memory is being freed into the wrong kmemcache, but also
we drop the per net reference count of ct objects causing an imbalance.
In Brad's case, this leads to a wrap-around of net->ct.count and thus
lets __nf_conntrack_alloc() refuse to create a new ct object:
[ 10.340913] xt_addrtype: ipv6 does not support BROADCAST matching
[ 10.810168] nf_conntrack: table full, dropping packet
[ 11.917416] r8169 0000:07:00.0 eth0: link up
[ 11.917438] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 12.815902] nf_conntrack: table full, dropping packet
[ 15.688561] nf_conntrack: table full, dropping packet
[ 15.689365] nf_conntrack: table full, dropping packet
[ 15.690169] nf_conntrack: table full, dropping packet
[ 15.690967] nf_conntrack: table full, dropping packet
[...]
With slab debugging, it also reports the wrong kmemcache (kmalloc-512 vs.
nf_conntrack_ffffffff81ce75c0) and reports poison overwrites, etc. Thus,
to fix the problem, export and use nf_ct_tmpl_free() instead.
Fixes: 0838aa7fcf ("netfilter: fix netns dependencies with conntrack templates")
Reported-by: Brad Jackson <bjackson0971@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Use port_clock instead of link_bw when picking the PLL parameters for
DP. link_bw may be zero with an eDP 1.4 sink that supports
DP_LINK_RATE_SET so we shouldn't use it for anything other than feed it
to the sink appropriately.
v2: Fix typo in commit message (Sivakumar)
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[Jani: cherry-picked from future.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Applications like gnome-shell may try to render after dropping master
privileges. Since the driver should now be safe against this scenario,
allow those applications to use their legacy node like a render node.
v2: Add missing return statement.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Commit ec9f932ed4
"drm/atomic: Cleanup on error properly in the atomic ioctl."
cleaned up some error paths, but didn't fix the TEST_ONLY path.
In the check only case plane->fb shouldn't be updated, and
the vblank events should be cleared as on failure.
Changes since v1:
- Fix -EDEADLK handling of vblank events too.
- Free state last with CHECK_ONLY.
Changes since v2:
- Add comment about freeing crtc_state->event with TEST_ONLY.
(Daniel Stone)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
