Andi Kleen [Thu, 21 Nov 2019 00:15:15 +0000 (16:15 -0800)]
perf evsel: Add iterator to iterate over events ordered by CPU
Add some common code that is needed to iterate over all events
in CPU order. Used in followon patches
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191121001522.180827-6-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Andi Kleen [Thu, 21 Nov 2019 00:15:14 +0000 (16:15 -0800)]
perf evlist: Maintain evlist->all_cpus
Maintain a cpumap in the evlist that is the union of all the cpus of the
events.
This needs a cpumap merge operation, which is added together with tests.
v2:
Add tests for cpu map merge
Fix handling of duplicates
Rename _update to _merge
Factor out sorting.
Fix handling of NULL maps in merge
v3:
Add comments and empty lines to _merge
Committer testing:
# perf test "Merge cpu map"
52: Merge cpu map : Ok
#
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lore.kernel.org/lkml/20191121001522.180827-5-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Andi Kleen [Thu, 21 Nov 2019 00:15:13 +0000 (16:15 -0800)]
perf cpumap: Maintain cpumaps ordered and without dups
Enforce this in _trim()
Needed for followon change.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191121001522.180827-4-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ingo Molnar [Fri, 29 Nov 2019 05:56:05 +0000 (06:56 +0100)]
Merge tag 'perf-core-for-mingo-5.5-
20191128' of git://git./linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
perf script:
Adrian Hunter:
- Fix brstackinsn for AUXTRACE.
- Fix invalid LBR/binary mismatch error.
perf diff:
Arnaldo Carvalho de Melo:
- Use llabs() with 64-bit values, fixing the build in some 32-bit
architectures.
perf pmu:
Andi Kleen:
- Use file system cache to optimize sysfs access.
x86:
Adrian Hunter:
- Add some more Intel instructions to the opcode map and to the perf
test entry:
gf2p8affineinvqb, gf2p8affineqb, gf2p8mulb, v4fmaddps,
v4fmaddss, v4fnmaddps, v4fnmaddss, vaesdec, vaesdeclast, vaesenc,
vaesenclast, vcvtne2ps2bf16, vcvtneps2bf16, vdpbf16ps,
vgf2p8affineinvqb, vgf2p8affineqb, vgf2p8mulb, vp2intersectd,
vp2intersectq, vp4dpwssd, vp4dpwssds, vpclmulqdq, vpcompressb,
vpcompressw, vpdpbusd, vpdpbusds, vpdpwssd, vpdpwssds, vpexpandb,
vpexpandw, vpopcntb, vpopcntd, vpopcntq, vpopcntw, vpshldd, vpshldq,
vpshldvd, vpshldvq, vpshldvw, vpshldw, vpshrdd, vpshrdq, vpshrdvd,
vpshrdvq, vpshrdvw, vpshrdw, vpshufbitqmb.
perf affinity:
Andi Kleen:
- Add infrastructure to save/restore affinity
perf maps:
Arnaldo Carvalho de Melo:
- Merge 'struct maps' with 'struct map_groups', as there is a
1x1 relationship, simplifying code overal.
perf build:
Jiri Olsa:
- Allow to link with libbpf dynamicaly.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Adrian Hunter [Wed, 27 Nov 2019 09:56:31 +0000 (11:56 +0200)]
perf script: Fix invalid LBR/binary mismatch error
The 'len' returned by grab_bb() includes an extra MAXINSN bytes to allow
for the last instruction, so the the final 'offs' will not be 'len'.
Fix the error condition logic accordingly.
Before:
$ perf record -e '{intel_pt//,cpu/mem_inst_retired.all_loads,aux-sample-size=8192/pp}:u' grep -rqs jhgjhg /boot
[ perf record: Woken up 19 times to write data ]
[ perf record: Captured and wrote 2.274 MB perf.data ]
$ perf script -F +brstackinsn --xed --itrace=i1usl100 | head
grep 13759 [002] 8091.310257: 1862 instructions:uH:
5641d58069eb bmexec+0x86b (/bin/grep)
bmexec+2485:
00005641d5806b35 jnz 0x5641d5806bd0 # MISPRED
00005641d5806bd0 movzxb (%r13,%rdx,1), %eax
00005641d5806bd6 add %rdi, %rax
00005641d5806bd9 movzxb -0x1(%rax), %edx
00005641d5806bdd cmp %rax, %r14
00005641d5806be0 jnb 0x5641d58069c0 # MISPRED
mismatch of LBR data and executable
00005641d58069c0 movzxb (%r13,%rdx,1), %edi
After:
$ perf script -F +brstackinsn --xed --itrace=i1usl100 | head
grep 13759 [002] 8091.310257: 1862 instructions:uH:
5641d58069eb bmexec+0x86b (/bin/grep)
bmexec+2485:
00005641d5806b35 jnz 0x5641d5806bd0 # MISPRED
00005641d5806bd0 movzxb (%r13,%rdx,1), %eax
00005641d5806bd6 add %rdi, %rax
00005641d5806bd9 movzxb -0x1(%rax), %edx
00005641d5806bdd cmp %rax, %r14
00005641d5806be0 jnb 0x5641d58069c0 # MISPRED
00005641d58069c0 movzxb (%r13,%rdx,1), %edi
00005641d58069c6 add %rax, %rdi
Fixes:
e98df280bc2a ("perf script brstackinsn: Fix recovery from LBR/binary mismatch")
Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191127095631.15663-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Wed, 27 Nov 2019 09:53:21 +0000 (11:53 +0200)]
perf script: Fix brstackinsn for AUXTRACE
brstackinsn must be allowed to be set by the user when AUX area data has
been captured because, in that case, the branch stack might be
synthesized on the fly. This fixes the following error:
Before:
$ perf record -e '{intel_pt//,cpu/mem_inst_retired.all_loads,aux-sample-size=8192/pp}:u' grep -rqs jhgjhg /boot
[ perf record: Woken up 19 times to write data ]
[ perf record: Captured and wrote 2.274 MB perf.data ]
$ perf script -F +brstackinsn --xed --itrace=i1usl100 | head
Display of branch stack assembler requested, but non all-branch filter set
Hint: run 'perf record -b ...'
After:
$ perf record -e '{intel_pt//,cpu/mem_inst_retired.all_loads,aux-sample-size=8192/pp}:u' grep -rqs jhgjhg /boot
[ perf record: Woken up 19 times to write data ]
[ perf record: Captured and wrote 2.274 MB perf.data ]
$ perf script -F +brstackinsn --xed --itrace=i1usl100 | head
grep 13759 [002] 8091.310257: 1862 instructions:uH:
5641d58069eb bmexec+0x86b (/bin/grep)
bmexec+2485:
00005641d5806b35 jnz 0x5641d5806bd0 # MISPRED
00005641d5806bd0 movzxb (%r13,%rdx,1), %eax
00005641d5806bd6 add %rdi, %rax
00005641d5806bd9 movzxb -0x1(%rax), %edx
00005641d5806bdd cmp %rax, %r14
00005641d5806be0 jnb 0x5641d58069c0 # MISPRED
mismatch of LBR data and executable
00005641d58069c0 movzxb (%r13,%rdx,1), %edi
Fixes:
48d02a1d5c13 ("perf script: Add 'brstackinsn' for branch stacks")
Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191127095322.15417-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Andi Kleen [Thu, 21 Nov 2019 00:15:12 +0000 (16:15 -0800)]
perf affinity: Add infrastructure to save/restore affinity
The kernel perf subsystem has to IPI to the target CPU for many
operations. On systems with many CPUs and when managing many events the
overhead can be dominated by lots of IPIs.
An alternative is to set up CPU affinity in the perf tool, then set up
all the events for that CPU, and then move on to the next CPU.
Add some affinity management infrastructure to enable such a model.
Used in followon patches.
Committer notes:
Use zfree() in some places, add missing stdbool.h header, some minor
coding style changes.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191121001522.180827-3-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Andi Kleen [Thu, 21 Nov 2019 00:15:11 +0000 (16:15 -0800)]
perf pmu: Use file system cache to optimize sysfs access
pmu.c does a lot of redundant /sys accesses while parsing aliases
and probing for PMUs. On large systems with a lot of PMUs this
can get expensive (>2s):
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
27.25 1.227847 8 160888 16976 openat
26.42 1.190481 7 164224 164077 stat
Add a cache to remember if specific file names exist or don't
exist, which eliminates most of this overhead.
Also optimize some stat() calls to be slightly cheaper access()
Resulting in:
0.18 0.004166 2 1851 305 open
0.08 0.001970 2 829 622 access
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191121001522.180827-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Wed, 27 Nov 2019 13:13:34 +0000 (10:13 -0300)]
perf regs: Make perf_reg_name() return "unknown" instead of NULL
To avoid breaking the build on arches where this is not wired up, at
least all the other features should be made available and when using
this specific routine, the "unknown" should point the user/developer to
the need to wire this up on this particular hardware architecture.
Detected in a container mipsel debian cross build environment, where it
shows up as:
In file included from /usr/mipsel-linux-gnu/include/stdio.h:867,
from /git/linux/tools/perf/lib/include/perf/cpumap.h:6,
from util/session.c:13:
In function 'printf',
inlined from 'regs_dump__printf' at util/session.c:1103:3,
inlined from 'regs__printf' at util/session.c:1131:2:
/usr/mipsel-linux-gnu/include/bits/stdio2.h:107:10: error: '%-5s' directive argument is null [-Werror=format-overflow=]
107 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cross compiler details:
mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1
20190909
Also on mips64:
In file included from /usr/mips64-linux-gnuabi64/include/stdio.h:867,
from /git/linux/tools/perf/lib/include/perf/cpumap.h:6,
from util/session.c:13:
In function 'printf',
inlined from 'regs_dump__printf' at util/session.c:1103:3,
inlined from 'regs__printf' at util/session.c:1131:2,
inlined from 'regs_user__printf' at util/session.c:1139:3,
inlined from 'dump_sample' at util/session.c:1246:3,
inlined from 'machines__deliver_event' at util/session.c:1421:3:
/usr/mips64-linux-gnuabi64/include/bits/stdio2.h:107:10: error: '%-5s' directive argument is null [-Werror=format-overflow=]
107 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'printf',
inlined from 'regs_dump__printf' at util/session.c:1103:3,
inlined from 'regs__printf' at util/session.c:1131:2,
inlined from 'regs_intr__printf' at util/session.c:1147:3,
inlined from 'dump_sample' at util/session.c:1249:3,
inlined from 'machines__deliver_event' at util/session.c:1421:3:
/usr/mips64-linux-gnuabi64/include/bits/stdio2.h:107:10: error: '%-5s' directive argument is null [-Werror=format-overflow=]
107 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cross compiler details:
mips64-linux-gnuabi64-gcc (Debian 9.2.1-8) 9.2.1
20190909
Fixes:
2bcd355b71da ("perf tools: Add interface to arch registers sets")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-95wjyv4o65nuaeweq31t7l1s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Wed, 27 Nov 2019 12:58:22 +0000 (09:58 -0300)]
perf diff: Use llabs() with 64-bit values
To fix this build error on a debian mipsel cross build environment:
builtin-diff.c: In function 'compute_cycles_diff':
builtin-diff.c:649:10: error: absolute value function 'labs' given an argument of type 's64' {aka 'long long int'} but has parameter of type 'long int' which may cause truncation of value [-Werror=absolute-value]
649 | val = labs(pair->block_info->cycles_spark[i] -
| ^~~~
Fixes:
cebf7d51a6c3 ("perf diff: Report noisy for cycles diff")
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-pn7szy5uw384ntjgk6zckh6a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Wed, 27 Nov 2019 12:58:22 +0000 (09:58 -0300)]
perf diff: Use llabs() with 64-bit values
To fix these build errors on a debian mipsel cross build environment:
builtin-diff.c: In function 'block_cycles_diff_cmp':
builtin-diff.c:550:6: error: absolute value function 'labs' given an argument of type 's64' {aka 'long long int'} but has parameter of type 'long int' which may cause truncation of value [-Werror=absolute-value]
550 | l = labs(left->diff.cycles);
| ^~~~
builtin-diff.c:551:6: error: absolute value function 'labs' given an argument of type 's64' {aka 'long long int'} but has parameter of type 'long int' which may cause truncation of value [-Werror=absolute-value]
551 | r = labs(right->diff.cycles);
| ^~~~
Fixes:
99150a1faab2 ("perf diff: Use hists to manage basic blocks per symbol")
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-pn7szy5uw384ntjgk6zckh6a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Anthony Steinhauser [Mon, 25 Nov 2019 05:48:38 +0000 (21:48 -0800)]
perf/x86: Implement immediate enforcement of /sys/devices/cpu/rdpmc value of 0
When you successfully write 0 to /sys/devices/cpu/rdpmc, the RDPMC
instruction should be disabled unconditionally and immediately (after you
close the SYSFS file) by the documentation.
Instead, in the current implementation the PMU must be reloaded which
happens only eventually some time in the future. Only after that the RDPMC
instruction becomes disabled (on ring 3) on the respective core.
This change makes the treatment of the 0 value as blocking and as
unconditional as the current treatment of the 2 value, only the CR4.PCE
bit is naturally set to false instead of true.
Signed-off-by: Anthony Steinhauser <asteinhauser@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: acme@kernel.org
Link: https://lkml.kernel.org/r/20191125054838.137615-1-asteinhauser@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Wed, 27 Nov 2019 04:11:43 +0000 (20:11 -0800)]
Merge tag 'media/v5.5-1' of git://git./linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- uAPI documentation for stateless decoders
- Added a new CEC ioctl together with its documentation
- Improved IPU3 documentation
- New i2c drivers: hi556 and imx290
- Added support on Vivid driver for meta streams
- Added de-interlace support for sunxi subdriver
- Added a few new remote controler keymaps
- Added H.265 support for Sunxi Cedrus driver
- Another round of random driver cleanups, fixes and improvements
* tag 'media/v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (361 commits)
media: Revert "media: mtk-vcodec: Remove extra area allocation in an input buffer on encoding"
media: hantro: Set H264 FIELDPIC_FLAG_E flag correctly
media: hantro: Remove now unused H264 pic_size
media: hantro: Use output buffer width and height for H264 decoding
media: hantro: Reduce H264 extra space for motion vectors
media: hantro: Fix H264 motion vector buffer offset
media: ti-vpe: vpe: fix compatible to match bindings
media: dt-bindings: media: ti-vpe: Document VPE driver
media: zr364xx: remove redundant assigmnent to idx, clean up code
media: Documentation: media: *_DEFAULT targets for subdevs
media: hantro: Fix s_fmt for dynamic resolution changes
media: i2c: Use the correct style for SPDX License Identifier
media: siano: Use the correct style for SPDX License Identifier
media: vicodec: media_device_cleanup was called too early
media: vim2m: media_device_cleanup was called too early
media: cedrus: Increase maximum supported size
media: cedrus: Fix H264 4k support
media: cedrus: Properly signal size in mode register
media: v4l2-ctrl: Lock main_hdl on operations of requests_queued.
media: si470x-i2c: add missed operations in remove
...
Linus Torvalds [Wed, 27 Nov 2019 04:04:35 +0000 (20:04 -0800)]
Merge tag 'sound-5.5-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There have been some significant changes in the core side, both for
ALSA and ASoC, while lots of development have been seen in SOF, as
well as many small fixes/improvements for ASoC codecs and platforms.
Below is a highlight in this cycle:
Core:
- The unification of PCM vmalloc buffer allocation helpers into the
standard API
- Clean up of the default PCM mmap handling for vmalloc & SG-buffer
- Fix potential races at ALSA timer open
- A few new PCM API extensions; just preliminary core changes, the
actual changes in drivers will be merged in 5.6
- Continued ASoC componentization works; now almost everything is a
common ASoC component object. A lot of refactoring and
simplification have been done along with it.
ASoC:
- Many fixes to the Sound Open Firmware (SOF) code
- Wake on voice support for Chromebooks
- SPI support and trigger word detection for RT5677
- New drivers for Analog Devices ADAU7118, Intel Cannonlake systems
with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770
HD-audio:
- Improved Intel DSP configuration / probe code for SOF
- Plumbing the legacy HD-audio driver with Intel SOF HDMI
- DP-MST support for Nvidia HDMI codecs
- Realtek quirks cleanups and new additions as usual
Others:
- Lots of refactoring and cleanups for FireWire; period-size sharing,
h/w IRQ interval configuration, clock recovery improvements, etc
- USB-audio: Scarlett mixer quirks
- Cleanups of PCM calls in various drivers (including media and USB)
to adapt the core API changes"
* tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits)
ALSA: usb-audio: Fix Focusrite Scarlett 6i6 gen1 - input handling
ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC
ALSA: aloop: Fix dependency on timer API
ASoC: DMI long name - avoid to add board name if matches with product name
ASoC: improve the DMI long card code in asoc-core
ASoC: rsnd: fix DALIGN register for SSIU
ALSA: aloop: Avoid unexpected timer event callback tasklets
ALSA: aloop: Remove redundant locking in timer open function
ASoC: component: Add sync_stop PCM ops
ASoC: pcm: Make ioctl ops optional
ALSA: hda/hdmi - Clear codec->relaxed_resume flag at unbinding
ALSA: hda - Disable audio component for legacy Nvidia HDMI codecs
ALSA: cs4236: fix error return comparison of an unsigned integer
ALSA: usb-audio: Fix NULL dereference at parsing BADD
ALSA: usb-audio: Fix Scarlett 6i6 Gen 2 port data
ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
ALSA: hda/realtek - Move some alc236 pintbls to fallback table
ALSA: hda/realtek - Move some alc256 pintbls to fallback table
ALSA: docs: Update about the new PCM sync_stop ops
ALSA: pcm: Add card sync_irq field
...
Linus Torvalds [Wed, 27 Nov 2019 03:45:12 +0000 (19:45 -0800)]
Merge tag 'devprop-5.5-rc1' of git://git./linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"Add support for printing fwnode names using a new conversion specifier
"%pfw" (Sakari Ailus), clean up the software node and
efi/apple-properties code in preparation for improved software node
reference properties handling (Dmitry Torokhov) and fix the struct
fwnode_operations description (Heikki Krogerus)"
* tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
software node: simplify property_entry_read_string_array()
software node: unify PROPERTY_ENTRY_XXX macros
software node: remove property_entry_read_uNN_array functions
software node: get rid of property_set_pointer()
software node: clean up property_copy_string_array()
software node: mark internal macros with double underscores
efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN
software node: introduce PROPERTY_ENTRY_XXX_ARRAY_LEN()
software node: remove DEV_PROP_MAX
device property: Fix the description of struct fwnode_operations
lib/test_printf: Add tests for %pfw printk modifier
lib/vsprintf: Add %pfw conversion specifier for printing fwnode names
lib/vsprintf: OF nodes are first and foremost, struct device_nodes
lib/vsprintf: Make use of fwnode API to obtain node names and separators
lib/vsprintf: Add a note on re-using %pf or %pF
lib/vsprintf: Remove support for %pF and %pf in favour of %pS and %ps
device property: Add a function to obtain a node's prefix
device property: Add fwnode_get_name for returning the name of a node
device property: Add functions for accessing node's parents
device property: Move fwnode_get_parent() up
...
Linus Torvalds [Wed, 27 Nov 2019 03:25:25 +0000 (19:25 -0800)]
Merge tag 'acpi-5.5-rc1' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20191018, add support for EFI specific purpose memory, update the ACPI
EC driver to make it work on systems with hardware-reduced ACPI,
improve ACPI-based device enumeration for some platforms, rework the
lid blacklist handling in the button driver and add more lid quirks to
it, unify ACPI _HID/_UID matching, fix assorted issues and clean up
the code and documentation.
Specifics:
- Update the ACPICA code in the kernel to upstream revision
20191018
including:
* Fixes for Clang warnings (Bob Moore)
* Fix for possible overflow in get_tick_count() (Bob Moore)
* Introduction of acpi_unload_table() (Bob Moore)
* Debugger and utilities updates (Erik Schmauss)
* Fix for unloading tables loaded via configfs (Nikolaus Voss)
- Add support for EFI specific purpose memory to optionally allow
either application-exclusive or core-kernel-mm managed access to
differentiated memory (Dan Williams)
- Fix and clean up processing of the HMAT table (Brice Goglin, Qian
Cai, Tao Xu)
- Update the ACPI EC driver to make it work on systems with
hardware-reduced ACPI (Daniel Drake)
- Always build in support for the Generic Event Device (GED) to allow
one kernel binary to work both on systems with full hardware ACPI
and hardware-reduced ACPI (Arjan van de Ven)
- Fix the table unload mechanism to unregister platform devices
created when the given table was loaded (Andy Shevchenko)
- Rework the lid blacklist handling in the button driver and add more
lid quirks to it (Hans de Goede)
- Improve ACPI-based device enumeration for some platforms based on
Intel BayTrail SoCs (Hans de Goede)
- Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC and
prevent handlers from being registered for unhandled PMIC OpRegions
(Hans de Goede)
- Unify ACPI _HID/_UID matching (Andy Shevchenko)
- Clean up documentation and comments (Cao jin, James Pack, Kacper
Piwiński)"
* tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
ACPI: OSI: Shoot duplicate word
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
ACPICA: Update version to
20191018
ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
ACPICA: acpiexec: initialize all simple types and field units from user input
ACPICA: debugger: add field unit support for acpi_db_get_next_token
...
Linus Torvalds [Wed, 27 Nov 2019 03:06:44 +0000 (19:06 -0800)]
Merge tag 'pm-5.5-rc1' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These include cpuidle changes to use nanoseconds (instead of
microseconds) as the unit of time and to simplify checks for disabled
idle states in the idle loop, some cpuidle fixes and governor updates,
assorted cpufreq updates (driver updates mostly and a few core fixes
and cleanups), devfreq updates (dominated by the tegra30 driver
changes), new CPU IDs for the RAPL power capping driver, relatively
minor updates of the generic power domains (genpd) and operation
performance points (OPP) frameworks, and assorted fixes and cleanups.
There are also two maintainer information updates: Chanwoo Choi will
be maintaining the devfreq subsystem going forward and Todd Brandt is
going to maintain the pm-graph utility (created by him).
Specifics:
- Use nanoseconds (instead of microseconds) as the unit of time in
the cpuidle core and simplify checks for disabled idle states in
the idle loop (Rafael Wysocki)
- Fix and clean up the teo cpuidle governor (Rafael Wysocki)
- Fix the cpuidle registration error code path (Zhenzhong Duan)
- Avoid excessive vmexits in the ACPI cpuidle driver (Yin Fengwei)
- Extend the idle injection infrastructure to be able to measure the
requested duration in nanoseconds and to allow an exit latency
limit for idle states to be specified (Daniel Lezcano)
- Fix cpufreq driver registration and clarify a comment in the
cpufreq core (Viresh Kumar)
- Add NULL checks to the show() and store() methods of sysfs
attributes exposed by cpufreq (Kai Shen)
- Update cpufreq drivers:
* Fix for a plain int as pointer warning from sparse in
intel_pstate (Jamal Shareef)
* Fix for a hardcoded number of CPUs and stack bloat in the
powernv driver (John Hubbard)
* Updates to the ti-cpufreq driver and DT files to support new
platforms and migrate bindings from opp-v1 to opp-v2 (Adam Ford,
H. Nikolaus Schaller)
* Merging of the arm_big_little and vexpress-spc drivers and
related cleanup (Sudeep Holla)
* Fix for imx's default speed grade value (Anson Huang)
* Minor cleanup of the s3c64xx driver (Nathan Chancellor)
* CPU speed bin detection fix for sun50i (Ondrej Jirman)
- Appoint Chanwoo Choi as the new devfreq maintainer.
- Update the devfreq core:
* Check NULL governor in available_governors_show sysfs to prevent
showing wrong governor information and fix a race condition
between devfreq_update_status() and trans_stat_show() (Leonard
Crestez)
* Add new 'interrupt-driven' flag for devfreq governors to allow
interrupt-driven governors to prevent the devfreq core from
polling devices for status (Dmitry Osipenko)
* Improve an error message in devfreq_add_device() (Matthias
Kaehlcke)
- Update devfreq drivers:
* tegra30 driver fixes and cleanups (Dmitry Osipenko)
* Removal of unused property from dt-binding documentation for the
exynos-bus driver (Kamil Konieczny)
* exynos-ppmu cleanup and DT bindings update (Lukasz Luba, Marek
Szyprowski)
- Add new CPU IDs for CometLake Mobile and Desktop to the Intel RAPL
power capping driver (Zhang Rui)
- Allow device initialization in the generic power domains (genpd)
framework to be more straightforward and clean it up (Ulf Hansson)
- Add support for adjusting OPP voltages at run time to the OPP
framework (Stephen Boyd)
- Avoid freeing memory that has never been allocated in the
hibernation core (Andy Whitcroft)
- Clean up function headers in a header file and coding style in the
wakeup IRQs handling code (Ulf Hansson, Xiaofei Tan)
- Clean up the SmartReflex adaptive voltage scaling (AVS) driver for
ARM (Ben Dooks, Geert Uytterhoeven)
- Wrap power management documentation to fit in 80 columns (Bjorn
Helgaas)
- Add pm-graph utility entry to MAINTAINERS (Todd Brandt)
- Update the cpupower utility:
* Fix the handling of set and info subcommands (Abhishek Goel)
* Fix build warnings (Nathan Chancellor)
* Improve mperf_monitor handling (Janakarajan Natarajan)"
* tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits)
PM: Wrap documentation to fit in 80 columns
cpuidle: Pass exit latency limit to cpuidle_use_deepest_state()
cpuidle: Allow idle injection to apply exit latency limit
cpuidle: Introduce cpuidle_driver_state_disabled() for driver quirks
cpuidle: teo: Avoid code duplication in conditionals
cpufreq: Register drivers only after CPU devices have been registered
cpuidle: teo: Avoid using "early hits" incorrectly
cpuidle: teo: Exclude cpuidle overhead from computations
PM / Domains: Convert to dev_to_genpd_safe() in genpd_syscore_switch()
mmc: tmio: Avoid boilerplate code in ->runtime_suspend()
PM / Domains: Implement the ->start() callback for genpd
PM / Domains: Introduce dev_pm_domain_start()
ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition
PM / wakeirq: remove unnecessary parentheses
power: avs: smartreflex: Remove superfluous cast in debugfs_create_file() call
cpuidle: Use nanoseconds as the unit of time
PM / OPP: Support adjusting OPP voltages at runtime
PM / core: Clean up some function headers in power.h
cpufreq: Add NULL checks to show() and store() methods of cpufreq
cpufreq: intel_pstate: Fix plain int as pointer warning from sparse
...
Linus Torvalds [Wed, 27 Nov 2019 01:12:12 +0000 (17:12 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 merge fix from Ingo Molnar:
"I missed one other semantic conflict that can result in build failures
on certain stripped down x86 32-bit configs, for example 32-bit
'allnoconfig' where CONFIG_X86_IOPL_IOPERM gets turned off"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/iopl: Make 'struct tss_struct' constant size again
Linus Torvalds [Wed, 27 Nov 2019 00:02:40 +0000 (16:02 -0800)]
Merge branch 'locking-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"The main changes in this cycle were:
- A comprehensive rewrite of the robust/PI futex code's exit handling
to fix various exit races. (Thomas Gleixner et al)
- Rework the generic REFCOUNT_FULL implementation using
atomic_fetch_* operations so that the performance impact of the
cmpxchg() loops is mitigated for common refcount operations.
With these performance improvements the generic implementation of
refcount_t should be good enough for everybody - and this got
confirmed by performance testing, so remove ARCH_HAS_REFCOUNT and
REFCOUNT_FULL entirely, leaving the generic implementation enabled
unconditionally. (Will Deacon)
- Other misc changes, fixes, cleanups"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
lkdtm: Remove references to CONFIG_REFCOUNT_FULL
locking/refcount: Remove unused 'refcount_error_report()' function
locking/refcount: Consolidate implementations of refcount_t
locking/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions
locking/refcount: Move saturation warnings out of line
locking/refcount: Improve performance of generic REFCOUNT_FULL code
locking/refcount: Move the bulk of the REFCOUNT_FULL implementation into the <linux/refcount.h> header
locking/refcount: Remove unused refcount_*_checked() variants
locking/refcount: Ensure integer operands are treated as signed
locking/refcount: Define constants for saturation and max refcount values
futex: Prevent exit livelock
futex: Provide distinct return value when owner is exiting
futex: Add mutex around futex exit
futex: Provide state handling for exec() as well
futex: Sanitize exit state handling
futex: Mark the begin of futex exit explicitly
futex: Set task::futex_state to DEAD right after handling futex exit
futex: Split futex_mm_release() for exit/exec
exit/exec: Seperate mm_release()
futex: Replace PF_EXITPIDONE with a state
...
Linus Torvalds [Tue, 26 Nov 2019 23:42:43 +0000 (15:42 -0800)]
Merge branch 'core-rcu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- Dynamic tick (nohz) updates, perhaps most notably changes to force
the tick on when needed due to lengthy in-kernel execution on CPUs
on which RCU is waiting.
- Linux-kernel memory consistency model updates.
- Replace rcu_swap_protected() with rcu_prepace_pointer().
- Torture-test updates.
- Documentation updates.
- Miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
rcu: Suppress levelspread uninitialized messages
rcu: Fix uninitialized variable in nocb_gp_wait()
rcu: Update descriptions for rcu_future_grace_period tracepoint
rcu: Update descriptions for rcu_nocb_wake tracepoint
rcu: Remove obsolete descriptions for rcu_barrier tracepoint
rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
workqueue: Convert for_each_wq to use built-in list check
rcu: Several rcu_segcblist functions can be static
rcu: Remove unused function hlist_bl_del_init_rcu()
Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
...
Linus Torvalds [Tue, 26 Nov 2019 23:23:14 +0000 (15:23 -0800)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The biggest changes in this cycle were:
- Make kcpustat vtime aware (Frederic Weisbecker)
- Rework the CFS load_balance() logic (Vincent Guittot)
- Misc cleanups, smaller enhancements, fixes.
The load-balancing rework is the most intrusive change: it replaces
the old heuristics that have become less meaningful after the
introduction of the PELT metrics, with a grounds-up load-balancing
algorithm.
As such it's not really an iterative series, but replaces the old
load-balancing logic with the new one. We hope there are no
performance regressions left - but statistically it's highly probable
that there *is* going to be some workload that is hurting from these
chnages. If so then we'd prefer to have a look at that workload and
fix its scheduling, instead of reverting the changes"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
rackmeter: Use vtime aware kcpustat accessor
leds: Use all-in-one vtime aware kcpustat accessor
cpufreq: Use vtime aware kcpustat accessors for user time
procfs: Use all-in-one vtime aware kcpustat accessor
sched/vtime: Bring up complete kcpustat accessor
sched/cputime: Support other fields on kcpustat_field()
sched/cpufreq: Move the cfs_rq_util_change() call to cpufreq_update_util()
sched/fair: Add comments for group_type and balancing at SD_NUMA level
sched/fair: Fix rework of find_idlest_group()
sched/uclamp: Fix overzealous type replacement
sched/Kconfig: Fix spelling mistake in user-visible help text
sched/core: Further clarify sched_class::set_next_task()
sched/fair: Use mul_u32_u32()
sched/core: Simplify sched_class::pick_next_task()
sched/core: Optimize pick_next_task()
sched/core: Make pick_next_task_idle() more consistent
sched/fair: Better document newidle_balance()
leds: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
cpufreq: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
...
Linus Torvalds [Tue, 26 Nov 2019 23:04:47 +0000 (15:04 -0800)]
Merge branch 'perf-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main kernel side changes in this cycle were:
- Various Intel-PT updates and optimizations (Alexander Shishkin)
- Prohibit kprobes on Xen/KVM emulate prefixes (Masami Hiramatsu)
- Add support for LSM and SELinux checks to control access to the
perf syscall (Joel Fernandes)
- Misc other changes, optimizations, fixes and cleanups - see the
shortlog for details.
There were numerous tooling changes as well - 254 non-merge commits.
Here are the main changes - too many to list in detail:
- Enhancements to core tooling infrastructure, perf.data, libperf,
libtraceevent, event parsing, vendor events, Intel PT, callchains,
BPF support and instruction decoding.
- There were updates to the following tools:
perf annotate
perf diff
perf inject
perf kvm
perf list
perf maps
perf parse
perf probe
perf record
perf report
perf script
perf stat
perf test
perf trace
- And a lot of other changes: please see the shortlog and Git log for
more details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (279 commits)
perf parse: Fix potential memory leak when handling tracepoint errors
perf probe: Fix spelling mistake "addrees" -> "address"
libtraceevent: Fix memory leakage in copy_filter_type
libtraceevent: Fix header installation
perf intel-bts: Does not support AUX area sampling
perf intel-pt: Add support for decoding AUX area samples
perf intel-pt: Add support for recording AUX area samples
perf pmu: When using default config, record which bits of config were changed by the user
perf auxtrace: Add support for queuing AUX area samples
perf session: Add facility to peek at all events
perf auxtrace: Add support for dumping AUX area samples
perf inject: Cut AUX area samples
perf record: Add aux-sample-size config term
perf record: Add support for AUX area sampling
perf auxtrace: Add support for AUX area sample recording
perf auxtrace: Move perf_evsel__find_pmu()
perf record: Add a function to test for kernel support for AUX area sampling
perf tools: Add kernel AUX area sampling definitions
perf/core: Make the mlock accounting simple again
perf report: Jump to symbol source view from total cycles view
...
Linus Torvalds [Tue, 26 Nov 2019 22:52:11 +0000 (14:52 -0800)]
Merge branch 'efi-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The main changes in this cycle were:
- Wire up the EFI RNG code for x86. This enables an additional source
of entropy during early boot.
- Enable the TPM event log code on ARM platforms.
- Update Ard's email address"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: libstub/tpm: enable tpm eventlog function for ARM platforms
x86: efi/random: Invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table
efi/random: use arch-independent efi_call_proto()
MAINTAINERS: update Ard's email address to @kernel.org
Linus Torvalds [Tue, 26 Nov 2019 22:47:19 +0000 (14:47 -0800)]
Merge branch 'core-stacktrace-for-linus' of git://git./linux/kernel/git/tip/tip
Pull stacktrace cleanup from Ingo Molnar:
"A minor cleanup"
* 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
stacktrace: Get rid of unneeded '!!' pattern
Ingo Molnar [Tue, 26 Nov 2019 20:49:04 +0000 (21:49 +0100)]
x86/iopl: Make 'struct tss_struct' constant size again
After the following commit:
05b042a19443: ("x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise")
'struct cpu_entry_area' has to be Kconfig invariant, so that we always
have a matching CPU_ENTRY_AREA_PAGES size.
This commit added a CONFIG_X86_IOPL_IOPERM dependency to tss_struct:
111e7b15cf10: ("x86/ioperm: Extend IOPL config to control ioperm() as well")
Which, if CONFIG_X86_IOPL_IOPERM is turned off, reduces the size of
cpu_entry_area by two pages, triggering the assert:
./include/linux/compiler.h:391:38: error: call to ‘__compiletime_assert_202’ declared with attribute error: BUILD_BUG_ON failed: (CPU_ENTRY_AREA_PAGES+1)*PAGE_SIZE != CPU_ENTRY_AREA_MAP_SIZE
Simplify the Kconfig dependencies and make cpu_entry_area constant
size on 32-bit kernels again.
Fixes:
05b042a19443: ("x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise")
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Tue, 26 Nov 2019 19:34:06 +0000 (11:34 -0800)]
Revert "vfs: properly and reliably lock f_pos in fdget_pos()"
This reverts commit
0be0ee71816b2b6725e2b4f32ad6726c9d729777.
I was hoping it would be benign to switch over entirely to FMODE_STREAM,
and we'd have just a couple of small fixups we'd need, but it looks like
we're not quite there yet.
While it worked fine on both my desktop and laptop, they are fairly
similar in other respects, and run mostly the same loads. Kenneth
Crudup reports that it seems to break both his vmware installation and
the KDE upower service. In both cases apparently leading to timeouts
due to waitinmg for the f_pos lock.
There are a number of character devices in particular that definitely
want stream-like behavior, but that currently don't get marked as
streams, and as a result get the exclusion between concurrent
read()/write() on the same file descriptor. Which doesn't work well for
them.
The most obvious example if this is /dev/console and /dev/tty, which use
console_fops and tty_fops respectively (and ptmx_fops for the pty master
side). It may be that it's just this that causes problems, but we
clearly weren't ready yet.
Because there's a number of other likely common cases that don't have
llseek implementations and would seem to act as stream devices:
/dev/fuse (fuse_dev_operations)
/dev/mcelog (mce_chrdev_ops)
/dev/mei0 (mei_fops)
/dev/net/tun (tun_fops)
/dev/nvme0 (nvme_dev_fops)
/dev/tpm0 (tpm_fops)
/proc/self/ns/mnt (ns_file_operations)
/dev/snd/pcm* (snd_pcm_f_ops[])
and while some of these could be trivially automatically detected by the
vfs layer when the character device is opened by just noticing that they
have no read or write operations either, it often isn't that obvious.
Some character devices most definitely do use the file position, even if
they don't allow seeking: the firmware update code, for example, uses
simple_read_from_buffer() that does use f_pos, but doesn't allow seeking
back and forth.
We'll revisit this when there's a better way to detect the problem and
fix it (possibly with a coccinelle script to do more of the FMODE_STREAM
annotations).
Reported-by: Kenneth R. Crudup <kenny@panix.com>
Cc: Kirill Smelkov <kirr@nexedi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 26 Nov 2019 19:12:02 +0000 (11:12 -0800)]
Merge branch 'x86-iopl-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 iopl updates from Ingo Molnar:
"This implements a nice simplification of the iopl and ioperm code that
Thomas Gleixner discovered: we can implement the IO privilege features
of the iopl system call by using the IO permission bitmap in
permissive mode, while trapping CLI/STI/POPF/PUSHF uses in user-space
if they change the interrupt flag.
This implements that feature, with testing facilities and related
cleanups"
[ "Simplification" may be an over-statement. The main goal is to avoid
the cli/sti of iopl by effectively implementing the IO port access
parts of iopl in terms of ioperm.
This may end up not workign well in case people actually depend on
cli/sti being available, or if there are mixed uses of iopl and
ioperm. We will see.. - Linus ]
* 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
x86/ioperm: Fix use of deprecated config option
x86/entry/32: Clarify register saving in __switch_to_asm()
selftests/x86/iopl: Extend test to cover IOPL emulation
x86/ioperm: Extend IOPL config to control ioperm() as well
x86/iopl: Remove legacy IOPL option
x86/iopl: Restrict iopl() permission scope
x86/iopl: Fixup misleading comment
selftests/x86/ioperm: Extend testing so the shared bitmap is exercised
x86/ioperm: Share I/O bitmap if identical
x86/ioperm: Remove bitmap if all permissions dropped
x86/ioperm: Move TSS bitmap update to exit to user work
x86/ioperm: Add bitmap sequence number
x86/ioperm: Move iobitmap data into a struct
x86/tss: Move I/O bitmap data into a seperate struct
x86/io: Speedup schedule out of I/O bitmap user
x86/ioperm: Avoid bitmap allocation if no permissions are set
x86/ioperm: Simplify first ioperm() invocation logic
x86/iopl: Cleanup include maze
x86/tss: Fix and move VMX BUILD_BUG_ON()
x86/cpu: Unify cpu_init()
...
Linus Torvalds [Tue, 26 Nov 2019 18:42:40 +0000 (10:42 -0800)]
Merge branch 'x86-asm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
"The main changes in this cycle were:
- Cross-arch changes to move the linker sections for NOTES and
EXCEPTION_TABLE into the RO_DATA area, where they belong on most
architectures. (Kees Cook)
- Switch the x86 linker fill byte from x90 (NOP) to 0xcc (INT3), to
trap jumps into the middle of those padding areas instead of
sliding execution. (Kees Cook)
- A thorough cleanup of symbol definitions within x86 assembler code.
The rather randomly named macros got streamlined around a
(hopefully) straightforward naming scheme:
SYM_START(name, linkage, align...)
SYM_END(name, sym_type)
SYM_FUNC_START(name)
SYM_FUNC_END(name)
SYM_CODE_START(name)
SYM_CODE_END(name)
SYM_DATA_START(name)
SYM_DATA_END(name)
etc - with about three times of these basic primitives with some
label, local symbol or attribute variant, expressed via postfixes.
No change in functionality intended. (Jiri Slaby)
- Misc other changes, cleanups and smaller fixes"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits)
x86/entry/64: Remove pointless jump in paranoid_exit
x86/entry/32: Remove unused resume_userspace label
x86/build/vdso: Remove meaningless CFLAGS_REMOVE_*.o
m68k: Convert missed RODATA to RO_DATA
x86/vmlinux: Use INT3 instead of NOP for linker fill bytes
x86/mm: Report actual image regions in /proc/iomem
x86/mm: Report which part of kernel image is freed
x86/mm: Remove redundant address-of operators on addresses
xtensa: Move EXCEPTION_TABLE to RO_DATA segment
powerpc: Move EXCEPTION_TABLE to RO_DATA segment
parisc: Move EXCEPTION_TABLE to RO_DATA segment
microblaze: Move EXCEPTION_TABLE to RO_DATA segment
ia64: Move EXCEPTION_TABLE to RO_DATA segment
h8300: Move EXCEPTION_TABLE to RO_DATA segment
c6x: Move EXCEPTION_TABLE to RO_DATA segment
arm64: Move EXCEPTION_TABLE to RO_DATA segment
alpha: Move EXCEPTION_TABLE to RO_DATA segment
x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment
x86/vmlinux: Actually use _etext for the end of the text segment
vmlinux.lds.h: Allow EXCEPTION_TABLE to live in RO_DATA
...
Linus Torvalds [Tue, 26 Nov 2019 18:12:28 +0000 (10:12 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"These are the fixes left over from the v5.4 cycle:
- Various low level 32-bit entry code fixes and improvements by Andy
Lutomirski, Peter Zijlstra and Thomas Gleixner.
- Fix 32-bit Xen PV breakage, by Jan Beulich"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/32: Fix FIXUP_ESPFIX_STACK with user CR3
x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise
selftests/x86/sigreturn/32: Invalidate DS and ES when abusing the kernel
selftests/x86/mov_ss_trap: Fix the SYSENTER test
x86/entry/32: Fix NMI vs ESPFIX
x86/entry/32: Unwind the ESPFIX stack earlier on exception entry
x86/entry/32: Move FIXUP_FRAME after pushing %fs in SAVE_ALL
x86/entry/32: Use %ss segment where required
x86/entry/32: Fix IRET exception
x86/cpu_entry_area: Add guard page for entry stack on 32bit
x86/pti/32: Size initial_page_table correctly
x86/doublefault/32: Fix stack canaries in the double fault handler
x86/xen/32: Simplify ring check in xen_iret_crit_fixup()
x86/xen/32: Make xen_iret_crit_fixup() independent of frame layout
x86/stackframe/32: Repair 32-bit Xen PV
Linus Torvalds [Tue, 26 Nov 2019 18:11:01 +0000 (10:11 -0800)]
Merge branch 'x86-pti-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 PTI updates from Ingo Molnar:
"Fix reporting bugs of the MDS and TAA mitigation status, if one or
both are set via a boot option.
No change to mitigation behavior intended"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Fix redundant MDS mitigation message
x86/speculation: Fix incorrect MDS/TAA mitigation status
Linus Torvalds [Tue, 26 Nov 2019 17:52:37 +0000 (09:52 -0800)]
Merge branch 'x86-platform-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"UV platform updates (with a 'hubless' variant) and Jailhouse updates
for better UART support"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/jailhouse: Only enable platform UARTs if available
x86/jailhouse: Improve setup data version comparison
x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops
x86/platform/uv: Check EFI Boot to set reboot type
x86/platform/uv: Decode UVsystab Info
x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files
x86/platform/uv: Setup UV functions for Hubless UV Systems
x86/platform/uv: Add return code to UV BIOS Init function
x86/platform/uv: Return UV Hubless System Type
x86/platform/uv: Save OEM_ID from ACPI MADT probe
Linus Torvalds [Tue, 26 Nov 2019 17:50:14 +0000 (09:50 -0800)]
Merge branch 'x86-mm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
"The main changes in this cycle were:
- A PAT series from Davidlohr Bueso, which simplifies the memtype
rbtree by using the interval tree helpers. (There's more cleanups
in this area queued up, but they didn't make the merge window.)
- Also flip over CONFIG_X86_5LEVEL to default-y. This might draw in a
few more testers, as all the major distros are going to have
5-level paging enabled by default in their next iterations.
- Misc cleanups"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/pat: Rename pat_rbtree.c to pat_interval.c
x86/mm/pat: Drop the rbt_ prefix from external memtype calls
x86/mm/pat: Do not pass 'rb_root' down the memtype tree helper functions
x86/mm/pat: Convert the PAT tree to a generic interval tree
x86/mm: Clean up the pmd_read_atomic() comments
x86/mm: Fix function name typo in pmd_read_atomic() comment
x86/cpu: Clean up intel_tlb_table[]
x86/mm: Enable 5-level paging support by default
Linus Torvalds [Tue, 26 Nov 2019 17:48:19 +0000 (09:48 -0800)]
Merge branch 'x86-kdump-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 kdump updates from Ingo Molnar:
"This solves a kdump artifact where encrypted memory contents are
dumped, instead of unencrypted ones.
The solution also happens to simplify the kdump code, to everyone's
delight"
* 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/crash: Align function arguments on opening braces
x86/kdump: Remove the backup region handling
x86/kdump: Always reserve the low 1M when the crashkernel option is specified
x86/crash: Add a forward declaration of struct kimage
Linus Torvalds [Tue, 26 Nov 2019 17:43:34 +0000 (09:43 -0800)]
Merge branch 'x86-hyperv-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 hyperv updates from Ingo Molnar:
"Misc updates to the hyperv guest code:
- Rework clockevents initialization to better support hibernation
- Allow guests to enable InvariantTSC
- Micro-optimize send_ipi_one"
* 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyperv: Initialize clockevents earlier in CPU onlining
x86/hyperv: Allow guests to enable InvariantTSC
x86/hyperv: Micro-optimize send_ipi_one()
Linus Torvalds [Tue, 26 Nov 2019 17:25:36 +0000 (09:25 -0800)]
Merge branch 'x86-entry-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 syscall entry updates from Ingo Molnar:
"These changes relate to the preparatory cleanup of syscall function
type signatures - to fix indirect call mismatches with Control-Flow
Integrity (CFI) checking.
No change in behavior intended"
* 'x86-entry-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Use the correct function type for native_set_fixmap()
syscalls/x86: Fix function types in COND_SYSCALL
syscalls/x86: Use the correct function type for sys_ni_syscall
syscalls/x86: Use COMPAT_SYSCALL_DEFINE0 for IA32 (rt_)sigreturn
syscalls/x86: Wire up COMPAT_SYSCALL_DEFINE0
syscalls/x86: Use the correct function type in SYSCALL_DEFINE0
Linus Torvalds [Tue, 26 Nov 2019 16:58:08 +0000 (08:58 -0800)]
Merge branches 'x86-cpu-for-linus' and 'x86-fpu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 cpu and fpu updates from Ingo Molnar:
- math-emu fixes
- CPUID updates
- sanity-check RDRAND output to see whether the CPU at least pretends
to produce random data
- various unaligned-access across cachelines fixes in preparation of
hardware level split-lock detection
- fix MAXSMP constraints to not allow !CPUMASK_OFFSTACK kernels with
larger than 512 NR_CPUS
- misc FPU related cleanups
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Align the x86_capability array to size of unsigned long
x86/cpu: Align cpu_caps_cleared and cpu_caps_set to unsigned long
x86/umip: Make the comments vendor-agnostic
x86/Kconfig: Rename UMIP config parameter
x86/Kconfig: Enforce limit of 512 CPUs with MAXSMP and no CPUMASK_OFFSTACK
x86/cpufeatures: Add feature bit RDPRU on AMD
x86/math-emu: Limit MATH_EMULATION to 486SX compatibles
x86/math-emu: Check __copy_from_user() result
x86/rdrand: Sanity-check RDRAND output
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Use XFEATURE_FP/SSE enum values instead of hardcoded numbers
x86/fpu: Shrink space allocated for xstate_comp_offsets
x86/fpu: Update stale variable name in comment
Linus Torvalds [Tue, 26 Nov 2019 16:40:20 +0000 (08:40 -0800)]
Merge branch 'x86-boot-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 boot updates from Ingo Molnar:
"The main changes were:
- Extend the boot protocol to allow future extensions without hitting
the setup_header size limit.
- Add quirk to devicetree systems to disable the RTC unless it's
listed as a supported device.
- Fix ld.lld linker pedantry"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Introduce setup_indirect
x86/boot: Introduce kernel_info.setup_type_max
x86/boot: Introduce kernel_info
x86/init: Allow DT configured systems to disable RTC at boot time
x86/realmode: Explicitly set entry point via ENTRY in linker script
Linus Torvalds [Tue, 26 Nov 2019 16:21:54 +0000 (08:21 -0800)]
Merge branches 'core-objtool-for-linus', 'x86-cleanups-for-linus' and 'x86-apic-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 objtool, cleanup, and apic updates from Ingo Molnar:
"Objtool:
- Fix a gawk 5.0 incompatibility in gen-insn-attr-x86.awk. Most
distros are still on gawk 4.2.x.
Cleanup:
- Misc cleanups, plus the removal of obsolete code such as Calgary
IOMMU support, which code hasn't seen any real testing in a long
time and there's no known users left.
apic:
- Two changes: a cleanup and a fix for an (old) race for oneshot
threaded IRQ handlers"
* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/insn: Fix awk regexp warnings
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Remove unused asm/rio.h
x86: Fix typos in comments
x86/pci: Remove #ifdef __KERNEL__ guard from <asm/pci.h>
x86/pci: Remove pci_64.h
x86: Remove the calgary IOMMU driver
x86/apic, x86/uprobes: Correct parameter names in kernel-doc comments
x86/kdump: Remove the unused crash_copy_backup_region()
x86/nmi: Remove stale EDAC include leftover
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ioapic: Rename misnamed functions
x86/ioapic: Prevent inconsistent state when moving an interrupt
Jiri Olsa [Tue, 26 Nov 2019 12:12:53 +0000 (13:12 +0100)]
perf tools: Allow to link with libbpf dynamicaly
Currently we support only static linking with kernel's libbpf
(tools/lib/bpf). This patch adds libbpf package detection and support to
link perf with it dynamically.
The libbpf package status is displayed with:
$ make VF=1
Auto-detecting system features:
...
... libbpf: [ on ]
It's not checked by default, because it's quite new. Once it's on most
distros we can switch it on.
For the same reason it's not added to the test-all check.
Perf does not need advanced version of libbpf, so we can check just for
the base bpf_object__open function.
Adding new compile variable to detect libbpf package and link bpf
dynamically:
$ make LIBBPF_DYNAMIC=1
...
LINK perf
$ ldd perf | grep bpf
libbpf.so.0 => /lib64/libbpf.so.0 (0x00007f46818bc000)
If libbpf is not installed, build stops with:
Makefile.config:486: *** Error: No libbpf devel library found,\
please install libbpf-devel. Stop.
Committer testing:
$ make LIBBPF_DYNAMIC=1 -C tools/perf O=/tmp/build/perf
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j8' parallel build
Makefile.config:493: *** Error: No libbpf devel library found, please install libbpf-devel. Stop.
make[1]: *** [Makefile.perf:225: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/home/acme/git/perf/tools/perf'
$
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191126121253.28253-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:33:02 +0000 (22:33 -0300)]
perf tests: Rename tests/map_groups.c to tests/maps.c
One more step in mergint the maps and map_groups structs.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-bw6aagubqxc47m54k2maezfu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:29:18 +0000 (22:29 -0300)]
perf tests: Rename thread-mg-share to thread-maps-share
One more step in merging 'struct maps' with 'struct map_groups'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-naxsl3g4ou3fyxb8l8e0pn5e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:24:10 +0000 (22:24 -0300)]
perf maps: Rename map_groups.h to maps.h
One more step in the merge of 'struct maps' with 'struct map_groups'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-9ibtn3vua76f934t7woyf26w@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:21:28 +0000 (22:21 -0300)]
perf maps: Rename 'mg' variables to 'maps'
Continuing the merge of 'struct maps' with 'struct map_groups'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-z8d14wrw393a0fbvmnk1bqd9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:15:35 +0000 (22:15 -0300)]
perf map_symbol: Rename ms->mg to ms->maps
One more step on the merge of 'struct maps' with 'struct map_groups'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-61rra2wg392rhvdgw421wzpt@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:11:20 +0000 (22:11 -0300)]
perf addr_location: Rename al->mg to al->maps
One more step on the merge of 'struct maps' with 'struct map_groups'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-foo95pyyp3bhocbt7yd8qrvq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 01:07:43 +0000 (22:07 -0300)]
perf thread: Rename thread->mg to thread->maps
One more step on the merge of 'struct maps' with 'struct map_groups'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-69vcr8pubpym90skxhmbwhiw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 00:58:33 +0000 (21:58 -0300)]
perf maps: Merge 'struct maps' with 'struct map_groups'
And pick the shortest name: 'struct maps'.
The split existed because we used to have two groups of maps, one for
functions and one for variables, but that only complicated things,
sometimes we needed to figure out what was at some address and then had
to first try it on the functions group and if that failed, fall back to
the variables one.
That split is long gone, so for quite a while we had only one struct
maps per struct map_groups, simplify things by combining those structs.
First patch is the minimum needed to merge both, follow up patches will
rename 'thread->mg' to 'thread->maps', etc.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-hom6639ro7020o708trhxh59@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Mon, 25 Nov 2019 12:50:43 +0000 (14:50 +0200)]
x86/insn: perf tools: Add some more instructions to the new instructions test
Add to the "x86 instruction decoder - new instructions" test the following
instructions:
v4fmaddps
v4fmaddss
v4fnmaddps
v4fnmaddss
vaesdec
vaesdeclast
vaesenc
vaesenclast
vcvtne2ps2bf16
vcvtneps2bf16
vdpbf16ps
gf2p8affineinvqb
vgf2p8affineinvqb
gf2p8affineqb
vgf2p8affineqb
gf2p8mulb
vgf2p8mulb
vp2intersectd
vp2intersectq
vp4dpwssd
vp4dpwssds
vpclmulqdq
vpcompressb
vpcompressw
vpdpbusd
vpdpbusds
vpdpwssd
vpdpwssds
vpexpandb
vpexpandw
vpopcntb
vpopcntd
vpopcntq
vpopcntw
vpshldd
vpshldq
vpshldvd
vpshldvq
vpshldvw
vpshldw
vpshrdd
vpshrdq
vpshrdvd
vpshrdvq
vpshrdvw
vpshrdw
vpshufbitqmb
For information about the instructions, refer Intel SDM May 2019
(325462-070US) and Intel Architecture Instruction Set Extensions May
2019 (319433-037).
Committer testing:
$ perf test x86
61: x86 rdpmc : Ok
64: x86 instruction decoder - new instructions : Ok
66: x86 bp modify : Ok
$
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20191125125044.31879-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Mon, 25 Nov 2019 12:50:44 +0000 (14:50 +0200)]
x86/insn: Add some more Intel instructions to the opcode map
Add to the opcode map the following instructions:
v4fmaddps
v4fmaddss
v4fnmaddps
v4fnmaddss
vaesdec
vaesdeclast
vaesenc
vaesenclast
vcvtne2ps2bf16
vcvtneps2bf16
vdpbf16ps
gf2p8affineinvqb
vgf2p8affineinvqb
gf2p8affineqb
vgf2p8affineqb
gf2p8mulb
vgf2p8mulb
vp2intersectd
vp2intersectq
vp4dpwssd
vp4dpwssds
vpclmulqdq
vpcompressb
vpcompressw
vpdpbusd
vpdpbusds
vpdpwssd
vpdpwssds
vpexpandb
vpexpandw
vpopcntb
vpopcntd
vpopcntq
vpopcntw
vpshldd
vpshldq
vpshldvd
vpshldvq
vpshldvw
vpshldw
vpshrdd
vpshrdq
vpshrdvd
vpshrdvq
vpshrdvw
vpshrdw
vpshufbitqmb
For information about the instructions, refer Intel SDM May 2019
(325462-070US) and Intel Architecture Instruction Set Extensions May
2019 (319433-037).
The instruction decoding can be tested using the perf tools' "x86
instruction decoder - new instructions" test e.g.
$ perf test -v "new " 2>&1 | grep -i 'v4fmaddps'
Decoded ok: 62 f2 7f 48 9a 20 v4fmaddps (%eax),%zmm0,%zmm4
Decoded ok: 62 f2 7f 48 9a a4 c8 78 56 34 12 v4fmaddps 0x12345678(%eax,%ecx,8),%zmm0,%zmm4
Decoded ok: 62 f2 7f 48 9a 20 v4fmaddps (%rax),%zmm0,%zmm4
Decoded ok: 67 62 f2 7f 48 9a 20 v4fmaddps (%eax),%zmm0,%zmm4
Decoded ok: 62 f2 7f 48 9a a4 c8 78 56 34 12 v4fmaddps 0x12345678(%rax,%rcx,8),%zmm0,%zmm4
Decoded ok: 67 62 f2 7f 48 9a a4 c8 78 56 34 12 v4fmaddps 0x12345678(%eax,%ecx,8),%zmm0,%zmm4
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20191125125044.31879-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Mon, 25 Nov 2019 13:42:38 +0000 (10:42 -0300)]
perf map: Remove unused functions
At some point those stopped being used, prune them.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-p2k98mj3ff2uk1z95sbl5r6e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Fri, 22 Nov 2019 15:48:24 +0000 (12:48 -0300)]
perf map: Remove needless struct forward declarations
At some point we may have needed that, not anymore.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-hnao13231bsl7xml5wn8h4iu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Fri, 22 Nov 2019 15:44:10 +0000 (12:44 -0300)]
perf map: Ditch leftover map__reloc_vmlinux() prototype
In
39b12f781271 ("perf tools: Make it possible to read object code from vmlinux")
the actual function was removed, but we forgot to remove the prototype,
fix it.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-35yy50cgpcx8cjorluwd5j53@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Fri, 22 Nov 2019 15:39:06 +0000 (12:39 -0300)]
perf script: Move map__fprintf_srccode() to near its only user
No need to have it elsewhere.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-8cw846pudpxo0xdkvi9qnvrh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 26 Nov 2019 14:06:19 +0000 (11:06 -0300)]
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up BPF changes we'll need.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Mauro Carvalho Chehab [Tue, 26 Nov 2019 13:37:47 +0000 (14:37 +0100)]
Merge branch 'patchwork' into v4l_for_linus
* patchwork: (360 commits)
media: Revert "media: mtk-vcodec: Remove extra area allocation in an input buffer on encoding"
media: hantro: Set H264 FIELDPIC_FLAG_E flag correctly
media: hantro: Remove now unused H264 pic_size
media: hantro: Use output buffer width and height for H264 decoding
media: hantro: Reduce H264 extra space for motion vectors
media: hantro: Fix H264 motion vector buffer offset
media: ti-vpe: vpe: fix compatible to match bindings
media: dt-bindings: media: ti-vpe: Document VPE driver
media: zr364xx: remove redundant assigmnent to idx, clean up code
media: Documentation: media: *_DEFAULT targets for subdevs
media: hantro: Fix s_fmt for dynamic resolution changes
media: i2c: Use the correct style for SPDX License Identifier
media: siano: Use the correct style for SPDX License Identifier
media: vicodec: media_device_cleanup was called too early
media: vim2m: media_device_cleanup was called too early
media: cedrus: Increase maximum supported size
media: cedrus: Fix H264 4k support
media: cedrus: Properly signal size in mode register
media: v4l2-ctrl: Lock main_hdl on operations of requests_queued.
media: si470x-i2c: add missed operations in remove
...
Rafael J. Wysocki [Tue, 26 Nov 2019 09:31:02 +0000 (10:31 +0100)]
Merge branch 'acpi-mm'
* acpi-mm:
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
Rafael J. Wysocki [Tue, 26 Nov 2019 09:30:49 +0000 (10:30 +0100)]
Merge branches 'acpi-utils', 'acpi-platform', 'acpi-video' and 'acpi-doc'
* acpi-utils:
iommu/amd: Switch to use acpi_dev_hid_uid_match()
mmc: sdhci-acpi: Switch to use acpi_dev_hid_uid_match()
ACPI / LPSS: Switch to use acpi_dev_hid_uid_match()
ACPI / utils: Introduce acpi_dev_hid_uid_match() helper
ACPI / utils: Move acpi_dev_get_first_match_dev() under CONFIG_ACPI
ACPI / utils: Describe function parameters in kernel-doc
* acpi-platform:
ACPI: platform: Unregister stale platform devices
ACPI: Always build evged in
* acpi-video:
ACPI: video: update doc for acpi_video_bus_DOS()
* acpi-doc:
ACPI: Documentation: Minor spelling fix in namespace.rst
Rafael J. Wysocki [Tue, 26 Nov 2019 09:30:12 +0000 (10:30 +0100)]
Merge branches 'acpi-ec', 'acpi-soc', 'acpi-pmic' and 'acpi-button'
* acpi-ec:
ACPI: EC: add support for hardware-reduced systems
ACPI: EC: tweak naming in preparation for GpioInt support
* acpi-soc:
ACPI: LPSS: Add dmi quirk for skipping _DEP check for some device-links
ACPI: LPSS: Add LNXVIDEO -> BYT I2C1 to lpss_device_links
ACPI: LPSS: Add LNXVIDEO -> BYT I2C7 to lpss_device_links
* acpi-pmic:
ACPI / PMIC: Add Cherry Trail Crystal Cove PMIC OpRegion driver
ACPI / PMIC: Add byt prefix to Crystal Cove PMIC OpRegion driver
ACPI / PMIC: Do not register handlers for unhandled OpRegions
* acpi-button:
ACPI: button: Remove unused acpi_lid_notifier_[un]register() functions
ACPI: button: Add DMI quirk for Asus T200TA
ACPI: button: Add DMI quirk for Medion Akoya E2215T
ACPI: button: Turn lid_blacklst DMI table into a generic quirk table
ACPI: button: Allow disabling LID support with the lid_init_state module option
ACPI: button: Refactor lid_init_state module parsing code
Rafael J. Wysocki [Tue, 26 Nov 2019 09:29:54 +0000 (10:29 +0100)]
Merge branch 'acpica'
* acpica:
ACPICA: Update version to
20191018
ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
ACPICA: acpiexec: initialize all simple types and field units from user input
ACPICA: debugger: add field unit support for acpi_db_get_next_token
ACPICA: debugger: surround field unit output with braces '{'
ACPICA: debugger: add command to dump all fields of particular subtype
ACPICA: utilities: add flag to only display data when dumping buffers
ACPICA: make acpi_load_table() return table index
ACPICA: Add new external interface, acpi_unload_table()
ACPICA: More Clang changes
ACPICA: Win OSL: Replace get_tick_count with get_tick_count64
ACPICA: Results from Clang
Rafael J. Wysocki [Tue, 26 Nov 2019 09:28:34 +0000 (10:28 +0100)]
Merge branches 'pm-avs', 'pm-docs' and 'pm-tools'
* pm-avs:
ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition
power: avs: smartreflex: Remove superfluous cast in debugfs_create_file() call
* pm-docs:
PM: Wrap documentation to fit in 80 columns
* pm-tools:
cpupower: ToDo: Update ToDo with ideas for per_cpu_schedule handling
cpupower: mperf_monitor: Update cpupower to use the RDPRU instruction
cpupower: mperf_monitor: Introduce per_cpu_schedule flag
cpupower: Move needs_root variable into a sub-struct
cpupower : Handle set and info subcommands correctly
pm-graph info added to MAINTAINERS
tools/power/cpupower: Fix initializer override in hsw_ext_cstates
Rafael J. Wysocki [Tue, 26 Nov 2019 09:27:49 +0000 (10:27 +0100)]
Merge branches 'pm-sleep', 'pm-domains', 'pm-opp' and 'powercap'
* pm-sleep:
PM / wakeirq: remove unnecessary parentheses
PM / core: Clean up some function headers in power.h
PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
* pm-domains:
PM / Domains: Convert to dev_to_genpd_safe() in genpd_syscore_switch()
mmc: tmio: Avoid boilerplate code in ->runtime_suspend()
PM / Domains: Implement the ->start() callback for genpd
PM / Domains: Introduce dev_pm_domain_start()
* pm-opp:
PM / OPP: Support adjusting OPP voltages at runtime
* powercap:
powercap/intel_rapl: add support for Cometlake desktop
powercap/intel_rapl: add support for CometLake Mobile
Rafael J. Wysocki [Tue, 26 Nov 2019 09:27:17 +0000 (10:27 +0100)]
Merge branch 'pm-devfreq'
* pm-devfreq: (26 commits)
PM / devfreq: tegra30: Tune up MCCPU boost-down coefficient
PM / devfreq: tegra30: Support variable polling interval
PM / devfreq: Add new interrupt_driven flag for governors
PM / devfreq: tegra30: Use kHz units for dependency threshold
PM / devfreq: tegra30: Disable consecutive interrupts when appropriate
PM / devfreq: tegra30: Don't enable already enabled consecutive interrupts
PM / devfreq: tegra30: Include appropriate header
PM / devfreq: tegra30: Constify structs
PM / devfreq: tegra30: Don't enable consecutive-down interrupt on startup
PM / devfreq: tegra30: Reset boosting on startup
PM / devfreq: tegra30: Move clk-notifier's registration to governor's start
PM / devfreq: tegra30: Use CPUFreq notifier
PM / devfreq: tegra30: Use kHz units uniformly in the code
PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out
PM / devfreq: tegra30: Drop write-barrier
PM / devfreq: tegra30: Handle possible round-rate error
PM / devfreq: tegra30: Keep interrupt disabled while governor is stopped
PM / devfreq: tegra30: Change irq type to unsigned int
PM / devfreq: exynos-ppmu: remove useless assignment
PM / devfreq: Lock devfreq in trans_stat_show
...
Rafael J. Wysocki [Tue, 26 Nov 2019 09:27:01 +0000 (10:27 +0100)]
Merge branch 'pm-cpufreq'
* pm-cpufreq: (23 commits)
cpufreq: Register drivers only after CPU devices have been registered
cpufreq: Add NULL checks to show() and store() methods of cpufreq
cpufreq: intel_pstate: Fix plain int as pointer warning from sparse
cpufreq: sun50i: Fix CPU speed bin detection
cpufreq: powernv: fix stack bloat and hard limit on number of CPUs
cpufreq: Clarify the comment in cpufreq_set_policy()
cpufreq: vexpress-spc: find and skip duplicates when merging frequencies
cpufreq: vexpress-spc: use macros instead of hardcoded values for cluster ids
cpufreq: s3c64xx: Remove pointless NULL check in s3c64xx_cpufreq_driver_init
cpufreq: imx-cpufreq-dt: Correct i.MX8MN's default speed grade value
cpufreq: vexpress-spc: fix some coding style issues
cpufreq: vexpress-spc: remove lots of debug messages
cpufreq: vexpress-spc: drop unnessary cpufreq_arm_bL_ops abstraction
cpufreq: merge arm_big_little and vexpress-spc
cpufreq: scpi: remove stale/outdated comment about the driver
ARM: dts: Add OPP-V2 table for AM3517
cpufreq: ti-cpufreq: Add support for AM3517
ARM: dts: omap36xx: using OPP1G needs to control the abb_ldo
cpufreq: ti-cpufreq: omap36xx use "cpu0","vbb" if run in multi_regulator mode
ARM: dts: omap3: bulk convert compatible to be explicitly ti,omap3430 or ti,omap3630 or ti,am3517
...
Rafael J. Wysocki [Tue, 26 Nov 2019 09:26:26 +0000 (10:26 +0100)]
Merge branch 'pm-cpuidle'
* pm-cpuidle:
cpuidle: Pass exit latency limit to cpuidle_use_deepest_state()
cpuidle: Allow idle injection to apply exit latency limit
cpuidle: Introduce cpuidle_driver_state_disabled() for driver quirks
cpuidle: teo: Avoid code duplication in conditionals
cpuidle: teo: Avoid using "early hits" incorrectly
cpuidle: teo: Exclude cpuidle overhead from computations
cpuidle: Use nanoseconds as the unit of time
cpuidle: Consolidate disabled state checks
ACPI: processor_idle: Skip dummy wait if kernel is in guest
cpuidle: Do not unset the driver if it is there already
cpuidle: teo: Fix "early hits" handling for disabled idle states
cpuidle: teo: Consider hits and misses metrics of disabled states
cpuidle: teo: Rename local variable in teo_select()
cpuidle: teo: Ignore disabled idle states that are too deep
Linus Torvalds [Tue, 26 Nov 2019 05:41:48 +0000 (21:41 -0800)]
Merge tag 'for-linus-5.5-1' of git://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"Some small fixes accumulated for IPMI, nothing major"
* tag 'for-linus-5.5-1' of git://github.com/cminyard/linux-ipmi:
ipmi: fix ipmb_poll()'s return type
ipmi: kill off 'timespec' usage again
drivers: ipmi: Support for both IPMB Req and Resp
ipmi: Fix memory leak in __ipmi_bmc_register
ipmi: bt-bmc: use devm_platform_ioremap_resource() to simplify code
ipmi: use %*ph to print small buffer
ipmi: Don't allow device module unload when in use
Linus Torvalds [Tue, 26 Nov 2019 05:39:23 +0000 (21:39 -0800)]
Merge tag 'i3c/for-5.5' of git://git./linux/kernel/git/i3c/linux
Pull i3c updates from Boris Brezillon:
"Minor fixes and MAINTAINERS updates"
* tag 'i3c/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
MAINTAINERS: add myself as maintainer of Cadence I3C master controller driver
MAINTAINERS: Mark linux-i3c mailing list moderated
i3c: Spelling s/dicovered/discovered/
i3c: master: use i3c_dev_get_master()
Linus Torvalds [Tue, 26 Nov 2019 05:35:46 +0000 (21:35 -0800)]
Merge branch 'pcmcia-next' of git://git./linux/kernel/git/brodo/linux
Pull pcmcia updates from Dominik Brodowski:
"Just a few odd fixes and improvements to the PCMCIA core"
* 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux:
pcmcia: remove unused dprintk definition
pcmcia: include <pcmcia/ds.h> for pcmcia_parse_tuple
pcmcia: include cs_internal.h for missing declarations
pcmcia: Use dev_get_drvdata where possible
pcmcia: clean an indentation issues, remove extraneous spaces
Linus Torvalds [Tue, 26 Nov 2019 05:32:37 +0000 (21:32 -0800)]
Merge tag 'spi-v5.5' of git://git./linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Lots of stuff going on in the core for SPI this time around, the two
big changes both being around time in different forms:
- A rework of delay times from Alexandru Ardelean which makes the
ways in which they are specified more consistent between drivers so
that what's available to clients is less dependent on the hardware
implementation.
- Support for PTP timestamping of transfers from Vladimir Oltean,
useful for use with precision clocks with SPI control interfaces.
- Big cleanups for the Atmel, PXA2xx and Zynq QSPI drivers"
* tag 'spi-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (119 commits)
dt-bindings: spi: Convert stm32 QSPI bindings to json-schema
spi: pic32: Retire dma_request_slave_channel_compat()
spi: Fix Kconfig indentation
spi: mediatek: add SPI_CS_HIGH support
spi: st-ssc4: add missed pm_runtime_disable
spi: tegra20-slink: add missed clk_unprepare
spi: tegra20-slink: Use dma_request_chan() directly for channel request
spi: tegra114: Use dma_request_chan() directly for channel request
spi: s3c64xx: Use dma_request_chan() directly for channel request
spi: qup: Use dma_request_chan() directly for channel request
spi: pl022: Use dma_request_chan() directly for channel request
spi: imx: Use dma_request_chan() directly for channel request
spi: fsl-lpspi: Use dma_request_chan() directly for channel request
spi: atmel: Use dma_request_chan() directly for channel request
spi: at91-usart: Use dma_request_chan() directly for channel request
spi: fsl-cpm: Correct the free:ing
spi: Fix regression to return zero on success instead of positive value
spi: pxa2xx: Add missed security checks
spi: nxp-fspi: Use devm API to fix missed unregistration of controller
spi: omap2-mcspi: Remove redundant checks
...
Linus Torvalds [Tue, 26 Nov 2019 05:11:55 +0000 (21:11 -0800)]
Merge tag 'regulator-v5.5' of git://git./linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Another fairly quiet release for the regulator API, some work all
around including some core work but mostly in specialist or driver
specific code:
- Fix for powering off boot-on regulators
- Enhancements to the coupled regulator support introduced in the
last release
- Conversion of a bunch of drivers to the fwnode API for GPIOs
- Mode support for DA9062
- New device support for Qualcomm PM1650, PM8004 and PM895 and
Silergy SR83X
- Removal of obsolete AB8505 support"
* tag 'regulator-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (49 commits)
regulator: da9062: Return REGULATOR_MODE_INVALID for invalid mode
regulator: Fix Kconfig indentation
regulator: tps6105x: add optional devicetree support
tps6105x: add optional devicetree support
regulator: rn5t618: fix rc5t619 ldo10 enable
regulator: vexpress: Use PTR_ERR_OR_ZERO() to simplify code
dt-bindings: mfd: da9062: describe buck modes
regulator: da9062: add of_map_mode support for bucks
regulator: da9062: refactor buck modes into header
regulator: stpmic1: Set a default ramp delay value
regulator: core: Let boot-on regulators be powered off
regulator: core: Don't try to remove device links if add failed
regulator: ab8500: Remove SYSCLKREQ from enum ab8505_regulator_id
regulator: ab8500: Remove AB8505 USB regulator
regulator: fan53555: add chip id for Silergy SYR83X
regulator: fixed: add off-on-delay
dt-bindings: regulator: fixed: add off-on-delay-us property
regulator: core: Allow generic coupling only for always-on regulators
regulator: core: Release coupled_rdevs on regulator_init_coupling() error
regulator:
bd70528: Add MODULE_ALIAS to allow module auto loading
...
Linus Torvalds [Tue, 26 Nov 2019 05:10:05 +0000 (21:10 -0800)]
Merge tag 'regmap-v5.5' of git://git./linux/kernel/git/broonie/regmap
Pull regmap update from Mark Brown:
"Just one patch for this release removing some dead code"
* tag 'regmap-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: regmap-w1: Drop unreachable code
Linus Torvalds [Tue, 26 Nov 2019 04:02:57 +0000 (20:02 -0800)]
Merge git://git./linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
"Another merge window, another pull full of stuff:
1) Support alternative names for network devices, from Jiri Pirko.
2) Introduce per-netns netdev notifiers, also from Jiri Pirko.
3) Support MSG_PEEK in vsock/virtio, from Matias Ezequiel Vara
Larsen.
4) Allow compiling out the TLS TOE code, from Jakub Kicinski.
5) Add several new tracepoints to the kTLS code, also from Jakub.
6) Support set channels ethtool callback in ena driver, from Sameeh
Jubran.
7) New SCTP events SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED,
SCTP_ADDR_MADE_PRIM, and SCTP_SEND_FAILED_EVENT. From Xin Long.
8) Add XDP support to mvneta driver, from Lorenzo Bianconi.
9) Lots of netfilter hw offload fixes, cleanups and enhancements,
from Pablo Neira Ayuso.
10) PTP support for aquantia chips, from Egor Pomozov.
11) Add UDP segmentation offload support to igb, ixgbe, and i40e. From
Josh Hunt.
12) Add smart nagle to tipc, from Jon Maloy.
13) Support L2 field rewrite by TC offloads in bnxt_en, from Venkat
Duvvuru.
14) Add a flow mask cache to OVS, from Tonghao Zhang.
15) Add XDP support to ice driver, from Maciej Fijalkowski.
16) Add AF_XDP support to ice driver, from Krzysztof Kazimierczak.
17) Support UDP GSO offload in atlantic driver, from Igor Russkikh.
18) Support it in stmmac driver too, from Jose Abreu.
19) Support TIPC encryption and auth, from Tuong Lien.
20) Introduce BPF trampolines, from Alexei Starovoitov.
21) Make page_pool API more numa friendly, from Saeed Mahameed.
22) Introduce route hints to ipv4 and ipv6, from Paolo Abeni.
23) Add UDP segmentation offload to cxgb4, Rahul Lakkireddy"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1857 commits)
libbpf: Fix usage of u32 in userspace code
mm: Implement no-MMU variant of vmalloc_user_node_flags
slip: Fix use-after-free Read in slip_open
net: dsa: sja1105: fix sja1105_parse_rgmii_delays()
macvlan: schedule bc_work even if error
enetc: add support Credit Based Shaper(CBS) for hardware offload
net: phy: add helpers phy_(un)lock_mdio_bus
mdio_bus: don't use managed reset-controller
ax88179_178a: add ethtool_op_get_ts_info()
mlxsw: spectrum_router: Fix use of uninitialized adjacency index
mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels
bpf: Simplify __bpf_arch_text_poke poke type handling
bpf: Introduce BPF_TRACE_x helper for the tracing tests
bpf: Add bpf_jit_blinding_enabled for !CONFIG_BPF_JIT
bpf, testing: Add various tail call test cases
bpf, x86: Emit patchable direct jump as tail call
bpf: Constant map key tracking for prog array pokes
bpf: Add poke dependency tracking for prog array maps
bpf: Add initial poke descriptor table for jit images
bpf: Move owner type, jited info into array auxiliary data
...
Linus Torvalds [Tue, 26 Nov 2019 03:49:58 +0000 (19:49 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Add library interfaces of certain crypto algorithms for WireGuard
- Remove the obsolete ablkcipher and blkcipher interfaces
- Move add_early_randomness() out of rng_mutex
Algorithms:
- Add blake2b shash algorithm
- Add blake2s shash algorithm
- Add curve25519 kpp algorithm
- Implement 4 way interleave in arm64/gcm-ce
- Implement ciphertext stealing in powerpc/spe-xts
- Add Eric Biggers's scalar accelerated ChaCha code for ARM
- Add accelerated 32r2 code from Zinc for MIPS
- Add OpenSSL/CRYPTOGRAMS poly1305 implementation for ARM and MIPS
Drivers:
- Fix entropy reading failures in ks-sa
- Add support for sam9x60 in atmel
- Add crypto accelerator for amlogic GXL
- Add sun8i-ce Crypto Engine
- Add sun8i-ss cryptographic offloader
- Add a host of algorithms to inside-secure
- Add NPCM RNG driver
- add HiSilicon HPRE accelerator
- Add HiSilicon TRNG driver"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (285 commits)
crypto: vmx - Avoid weird build failures
crypto: lib/chacha20poly1305 - use chacha20_crypt()
crypto: x86/chacha - only unregister algorithms if registered
crypto: chacha_generic - remove unnecessary setkey() functions
crypto: amlogic - enable working on big endian kernel
crypto: sun8i-ce - enable working on big endian
crypto: mips/chacha - select CRYPTO_SKCIPHER, not CRYPTO_BLKCIPHER
hwrng: ks-sa - Enable COMPILE_TEST
crypto: essiv - remove redundant null pointer check before kfree
crypto: atmel-aes - Change data type for "lastc" buffer
crypto: atmel-tdes - Set the IV after {en,de}crypt
crypto: sun4i-ss - fix big endian issues
crypto: sun4i-ss - hide the Invalid keylen message
crypto: sun4i-ss - use crypto_ahash_digestsize
crypto: sun4i-ss - remove dependency on not 64BIT
crypto: sun4i-ss - Fix 64-bit size_t warnings on sun4i-ss-hash.c
MAINTAINERS: Add maintainer for HiSilicon SEC V2 driver
crypto: hisilicon - add DebugFS for HiSilicon SEC
Documentation: add DebugFS doc for HiSilicon SEC
crypto: hisilicon - add SRIOV for HiSilicon SEC
...
Linus Torvalds [Tue, 26 Nov 2019 03:43:48 +0000 (19:43 -0800)]
Merge tag 'livepatching-for-5.5' of git://git./linux/kernel/git/livepatching/livepatching
Pull livepatching updates from Petr Mladek:
- New API to track system state changes done be livepatch callbacks. It
helps to maintain compatibility between livepatches.
- Update Kconfig help text. ORC is another reliable unwinder.
- Disable generic selftest timeout. Livepatch selftests have their own
per-operation fine-grained timeouts.
* tag 'livepatching-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
x86/stacktrace: update kconfig help text for reliable unwinders
livepatch: Selftests of the API for tracking system state changes
livepatch: Documentation of the new API for tracking system state changes
livepatch: Allow to distinguish different version of system state changes
livepatch: Basic API to track system state changes
livepatch: Keep replaced patches until post_patch callback is called
selftests/livepatch: Disable the timeout
Linus Torvalds [Tue, 26 Nov 2019 03:40:40 +0000 (19:40 -0800)]
Merge tag 'printk-for-5.5' of git://git./linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Allow to print symbolic error names via new %pe modifier.
- Use pr_warn() instead of the remaining pr_warning() calls. Fix
formatting of the related lines.
- Add VSPRINTF entry to MAINTAINERS.
* tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (32 commits)
checkpatch: don't warn about new vsprintf pointer extension '%pe'
MAINTAINERS: Add VSPRINTF
tools lib api: Renaming pr_warning to pr_warn
ASoC: samsung: Use pr_warn instead of pr_warning
lib: cpu_rmap: Use pr_warn instead of pr_warning
trace: Use pr_warn instead of pr_warning
dma-debug: Use pr_warn instead of pr_warning
vgacon: Use pr_warn instead of pr_warning
fs: afs: Use pr_warn instead of pr_warning
sh/intc: Use pr_warn instead of pr_warning
scsi: Use pr_warn instead of pr_warning
platform/x86: intel_oaktrail: Use pr_warn instead of pr_warning
platform/x86: asus-laptop: Use pr_warn instead of pr_warning
platform/x86: eeepc-laptop: Use pr_warn instead of pr_warning
oprofile: Use pr_warn instead of pr_warning
of: Use pr_warn instead of pr_warning
macintosh: Use pr_warn instead of pr_warning
idsn: Use pr_warn instead of pr_warning
ide: Use pr_warn instead of pr_warning
crypto: n2: Use pr_warn instead of pr_warning
...
Linus Torvalds [Tue, 26 Nov 2019 03:23:46 +0000 (19:23 -0800)]
Merge branch 'for-5.5' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"There are several notable changes here:
- Single thread migrating itself has been optimized so that it
doesn't need threadgroup rwsem anymore.
- Freezer optimization to avoid unnecessary frozen state changes.
- cgroup ID unification so that cgroup fs ino is the only unique ID
used for the cgroup and can be used to directly look up live
cgroups through filehandle interface on 64bit ino archs. On 32bit
archs, cgroup fs ino is still the only ID in use but it is only
unique when combined with gen.
- selftest and other changes"
* 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (24 commits)
writeback: fix -Wformat compilation warnings
docs: cgroup: mm: Fix spelling of "list"
cgroup: fix incorrect WARN_ON_ONCE() in cgroup_setup_root()
cgroup: use cgrp->kn->id as the cgroup ID
kernfs: use 64bit inos if ino_t is 64bit
kernfs: implement custom exportfs ops and fid type
kernfs: combine ino/id lookup functions into kernfs_find_and_get_node_by_id()
kernfs: convert kernfs_node->id from union kernfs_node_id to u64
kernfs: kernfs_find_and_get_node_by_ino() should only look up activated nodes
kernfs: use dumber locking for kernfs_find_and_get_node_by_ino()
netprio: use css ID instead of cgroup ID
writeback: use ino_t for inodes in tracepoints
kernfs: fix ino wrap-around detection
kselftests: cgroup: Avoid the reuse of fd after it is deallocated
cgroup: freezer: don't change task and cgroups status unnecessarily
cgroup: use cgroup->last_bstat instead of cgroup->bstat_pending for consistency
cgroup: remove cgroup_enable_task_cg_lists() optimization
cgroup: pids: use atomic64_t for pids->limit
selftests: cgroup: Run test_core under interfering stress
selftests: cgroup: Add task migration tests
...
Linus Torvalds [Tue, 26 Nov 2019 02:57:12 +0000 (18:57 -0800)]
Merge branch 'for-5.5' of git://git./linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
"There have been sporadic reports of sanity checks in
destroy_workqueue() failing spuriously over the years. This contains
the fix and its follow-up changes / fixes.
There's also a RCU annotation improvement"
* 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Add RCU annotation for pwq list walk
workqueue: Fix pwq ref leak in rescuer_thread()
workqueue: more destroy_workqueue() fixes
workqueue: Minor follow-ups to the rescuer destruction change
workqueue: Fix missing kfree(rescuer) in destroy_workqueue()
workqueue: Fix spurious sanity check failures in destroy_workqueue()
Linus Torvalds [Tue, 26 Nov 2019 02:36:49 +0000 (18:36 -0800)]
Merge tag 'threads-v5.5' of git://git./linux/kernel/git/brauner/linux
Pull thread management updates from Christian Brauner:
- A pidfd's fdinfo file currently contains the field "Pid:\t<pid>"
where <pid> is the pid of the process in the pid namespace of the
procfs instance the fdinfo file for the pidfd was opened in.
The fdinfo file has now gained a new "NSpid:\t<ns-pid1>[\t<ns-pid2>[...]]"
field which lists the pids of the process in all child pid namespaces
provided the pid namespace of the procfs instance it is looked up
under has an ancestoral relationship with the pid namespace of the
process. If it does not 0 will be shown and no further pid namespaces
will be listed. Tests included. (Christian Kellner)
- If the process the pidfd references has already exited, print -1 for
the Pid and NSpid fields in the pidfd's fdinfo file. Tests included.
(me)
- Add CLONE_CLEAR_SIGHAND. This lets callers clear all signal handler
that are not SIG_DFL or SIG_IGN at process creation time. This
originated as a feature request from glibc to improve performance and
elimate races in their posix_spawn() implementation. Tests included.
(me)
- Add support for choosing a specific pid for a process with clone3().
This is the feature which was part of the thread update for v5.4 but
after a discussion at LPC in Lisbon we decided to delay it for one
more cycle in order to make the interface more generic. This has now
done. It is now possible to choose a specific pid in a whole pid
namespaces (sub)hierarchy instead of just one pid namespace. In order
to choose a specific pid the caller must have CAP_SYS_ADMIN in all
owning user namespaces of the target pid namespaces. Tests included.
(Adrian Reber)
- Test improvements and extensions. (Andrei Vagin, me)
* tag 'threads-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
selftests/clone3: skip if clone3() is ENOSYS
selftests/clone3: check that all pids are released on error paths
selftests/clone3: report a correct number of fails
selftests/clone3: flush stdout and stderr before clone3() and _exit()
selftests: add tests for clone3() with *set_tid
fork: extend clone3() to support setting a PID
selftests: add tests for clone3()
tests: test CLONE_CLEAR_SIGHAND
clone3: add CLONE_CLEAR_SIGHAND
pid: use pid_has_task() in pidfd_open()
exit: use pid_has_task() in do_wait()
pid: use pid_has_task() in __change_pid()
test: verify fdinfo for pidfd of reaped process
pidfd: check pid has attached task in fdinfo
pidfd: add tests for NSpid info in fdinfo
pidfd: add NSpid entries to fdinfo
Linus Torvalds [Tue, 26 Nov 2019 02:07:36 +0000 (18:07 -0800)]
Merge tag 'edac_for_5.5' of git://git./linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
"A lot of changes this time around, details below.
From the next cycle onwards, we'll switch the EDAC tree to topic
branches (instead of a single edac-for-next branch) which should make
the changes handling more flexible, hopefully. We'll see.
Summary:
- Rework error logging functions to accept a count of errors
parameter (Hanna Hawa)
- Part one of substantial EDAC core + ghes_edac driver cleanup
(Robert Richter)
- Print additional useful logging information in skx_* (Tony Luck)
- Improve amd64_edac hw detection + cleanups (Yazen Ghannam)
- Misc cleanups, fixes and code improvements"
* tag 'edac_for_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: (35 commits)
EDAC/altera: Use the Altera System Manager driver
EDAC/altera: Cleanup the ECC Manager
EDAC/altera: Use fast register IO for S10 IRQs
EDAC/ghes: Do not warn when incrementing refcount on 0
EDAC/Documentation: Describe CPER module definition and DIMM ranks
EDAC: Unify the mc_event tracepoint call
EDAC/ghes: Remove intermediate buffer pvt->detail_location
EDAC/ghes: Fix grain calculation
EDAC/ghes: Use standard kernel macros for page calculations
EDAC: Remove misleading comment in struct edac_raw_error_desc
EDAC/mc: Reduce indentation level in edac_mc_handle_error()
EDAC/mc: Remove needless zero string termination
EDAC/mc: Do not BUG_ON() in edac_mc_alloc()
EDAC: Introduce an mci_for_each_dimm() iterator
EDAC: Remove EDAC_DIMM_OFF() macro
EDAC: Replace EDAC_DIMM_PTR() macro with edac_get_dimm() function
EDAC/amd64: Get rid of the ECC disabled long message
EDAC/ghes: Fix locking and memory barrier issues
EDAC/amd64: Check for memory before fully initializing an instance
EDAC/amd64: Use cached data when checking for ECC
...
Linus Torvalds [Tue, 26 Nov 2019 02:02:36 +0000 (18:02 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- data abort report and injection
- steal time support
- GICv4 performance improvements
- vgic ITS emulation fixes
- simplify FWB handling
- enable halt polling counters
- make the emulated timer PREEMPT_RT compliant
s390:
- small fixes and cleanups
- selftest improvements
- yield improvements
PPC:
- add capability to tell userspace whether we can single-step the
guest
- improve the allocation of XIVE virtual processor IDs
- rewrite interrupt synthesis code to deliver interrupts in virtual
mode when appropriate.
- minor cleanups and improvements.
x86:
- XSAVES support for AMD
- more accurate report of nested guest TSC to the nested hypervisor
- retpoline optimizations
- support for nested 5-level page tables
- PMU virtualization optimizations, and improved support for nested
PMU virtualization
- correct latching of INITs for nested virtualization
- IOAPIC optimization
- TSX_CTRL virtualization for more TAA happiness
- improved allocation and flushing of SEV ASIDs
- many bugfixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
kvm: nVMX: Relax guest IA32_FEATURE_CONTROL constraints
KVM: x86: Grab KVM's srcu lock when setting nested state
KVM: x86: Open code shared_msr_update() in its only caller
KVM: Fix jump label out_free_* in kvm_init()
KVM: x86: Remove a spurious export of a static function
KVM: x86: create mmu/ subdirectory
KVM: nVMX: Remove unnecessary TLB flushes on L1<->L2 switches when L1 use apic-access-page
KVM: x86: remove set but not used variable 'called'
KVM: nVMX: Do not mark vmcs02->apic_access_page as dirty when unpinning
KVM: vmx: use MSR_IA32_TSX_CTRL to hard-disable TSX on guest that lack it
KVM: vmx: implement MSR_IA32_TSX_CTRL disable RTM functionality
KVM: x86: implement MSR_IA32_TSX_CTRL effect on CPUID
KVM: x86: do not modify masked bits of shared MSRs
KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES
KVM: PPC: Book3S HV: XIVE: Fix potential page leak on error path
KVM: PPC: Book3S HV: XIVE: Free previous EQ page when setting up a new one
KVM: nVMX: Assume TLB entries of L1 and L2 are tagged differently if L0 use EPT
KVM: x86: Unexport kvm_vcpu_reload_apic_access_page()
KVM: nVMX: add CR4_LA57 bit to nested CR4_FIXED1
KVM: nVMX: Use semi-colon instead of comma for exit-handlers initialization
...
Linus Torvalds [Tue, 26 Nov 2019 01:45:31 +0000 (17:45 -0800)]
Merge tag 'for-linus-5.5a-rc1-tag' of git://git./linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- a small series to remove the build constraint of Xen x86 MCE handling
to 64-bit only
- a bunch of minor cleanups
* tag 'for-linus-5.5a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: Fix Kconfig indentation
xen/mcelog: also allow building for 32-bit kernels
xen/mcelog: add PPIN to record when available
xen/mcelog: drop __MC_MSR_MCGCAP
xen/gntdev: Use select for DMA_SHARED_BUFFER
xen: mm: make xen_mm_init static
xen: mm: include <xen/xen-ops.h> for missing declarations
Linus Torvalds [Tue, 26 Nov 2019 01:42:56 +0000 (17:42 -0800)]
Merge tag 'mips_5.5' of git://git./linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
"The main MIPS changes for 5.5:
- Atomics-related code sees some rework & cleanup, most notably
allowing Loongson LL/SC errata workarounds to be more bulletproof &
their correctness to be checked at build time.
- Command line setup code is simplified somewhat, resolving various
corner cases.
- MIPS kernels can now be built with kcov code coverage support.
- We can now build with CONFIG_FORTIFY_SOURCE=y.
- Miscellaneous cleanups.
And some platform specific changes:
- We now disable some broken TLB functionality on certain Ingenic
systems, and JZ4780 systems gain some devicetree nodes to support
more devices.
- Loongson support sees a number of cleanups, and we gain initial
support for Loongson 3A R4 systems.
- We gain support for MediaTek MT7688-based GARDENA Smart Gateway
systems.
- SGI IP27 (Origin 2*) see a number of fixes, cleanups &
simplifications.
- SGI IP30 (Octane) systems are now supported"
* tag 'mips_5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits)
MIPS: SGI-IP27: Enable ethernet phy on second Origin 200 module
MIPS: PCI: Fix fake subdevice ID for IOC3
MIPS: Ingenic: Disable abandoned HPTLB function.
MIPS: PCI: remember nasid changed by set interrupt affinity
MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameter
mips: add support for folded p4d page tables
mips: drop __pXd_offset() macros that duplicate pXd_index() ones
mips: fix build when "48 bits virtual memory" is enabled
MIPS: math-emu: Reuse name array in debugfs_fpuemu()
MIPS: allow building with kcov coverage
MIPS: Loongson64: Drop setup_pcimap
MIPS: Loongson2ef: Convert to early_printk_8250
MIPS: Drop CPU_SUPPORTS_UNCACHED_ACCELERATED
MIPS: Loongson{2ef, 32, 64} convert to generic fw cmdline
MIPS: Drop pmon.h
MIPS: Loongson: Unify LOONGSON3/LOONGSON64 Kconfig usage
MIPS: Loongson: Rename LOONGSON1 to LOONGSON32
MIPS: Loongson: Fix return value of loongson_hwmon_init
MIPS: add support for SGI Octane (IP30)
MIPS: PCI: make phys_to_dma/dma_to_phys for pci-xtalk-bridge common
...
Linus Torvalds [Tue, 26 Nov 2019 01:37:30 +0000 (17:37 -0800)]
Merge tag 'm68k-for-v5.5-tag1' of git://git./linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- Atari Falcon IDE platform driver conversion for module autoload
- defconfig updates (including enablement of Amiga ICY I2C)
- small fixes and cleanups
* tag 'm68k-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/atari: Convert Falcon IDE drivers to platform drivers
m68k: defconfig: Enable ICY I2C and LTC2990 on Amiga
m68k: defconfig: Update defconfigs for v5.4-rc1
m68k: q40: Fix info-leak in rtc_ioctl
nubus: Remove cast to void pointer
Linus Torvalds [Tue, 26 Nov 2019 01:31:39 +0000 (17:31 -0800)]
Merge branch 'ras-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- Fully reworked thermal throttling notifications, there should be no
more spamming of dmesg (Srinivas Pandruvada and Benjamin Berg)
- More enablement for the Intel-compatible CPUs Zhaoxin (Tony W
Wang-oc)
- PPIN support for Icelake (Tony Luck)
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce/therm_throt: Optimize notifications of thermal throttle
x86/mce: Add Xeon Icelake to list of CPUs that support PPIN
x86/mce: Lower throttling MCE messages' priority to warning
x86/mce: Add Zhaoxin LMCE support
x86/mce: Add Zhaoxin CMCI support
x86/mce: Add Zhaoxin MCE support
x86/mce/amd: Make disable_err_thresholding() static
Linus Torvalds [Tue, 26 Nov 2019 01:28:35 +0000 (17:28 -0800)]
Merge branch 'x86-microcode-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 microcode updates from Borislav Petkov:
"This converts the late loading method to load the microcode in
parallel (vs sequentially currently). The patch remained in linux-next
for the maximum amount of time so that any potential and hard to debug
fallout be minimized.
Now cloud folks have their milliseconds back but all the normal people
should use early loading anyway :-)"
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/intel: Issue the revision updated message only on the BSP
x86/microcode: Update late microcode in parallel
x86/microcode/amd: Fix two -Wunused-but-set-variable warnings
Linus Torvalds [Tue, 26 Nov 2019 01:23:53 +0000 (17:23 -0800)]
Merge tag 's390-5.5-1' of git://git./linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Adjust PMU device drivers registration to avoid WARN_ON and few other
perf improvements.
- Enhance tracing in vfio-ccw.
- Few stack unwinder fixes and improvements, convert get_wchan custom
stack unwinding to generic api usage.
- Fixes for mm helpers issues uncovered with tests validating
architecture page table helpers.
- Fix noexec bit handling when hardware doesn't support it.
- Fix memleak and unsigned value compared with zero bugs in crypto
code. Minor code simplification.
- Fix crash during kdump with kasan enabled kernel.
- Switch bug and alternatives from asm to asm_inline to improve
inlining decisions.
- Use 'depends on cc-option' for MARCH and TUNE options in Kconfig, add
z13s and z14 ZR1 to TUNE descriptions.
- Minor head64.S simplification.
- Fix physical to logical CPU map for SMT.
- Several cleanups in qdio code.
- Other minor cleanups and fixes all over the code.
* tag 's390-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (41 commits)
s390/cpumf: Adjust registration of s390 PMU device drivers
s390/smp: fix physical to logical CPU map for SMT
s390/early: move access registers setup in C code
s390/head64: remove unnecessary vdso_per_cpu_data setup
s390/early: move control registers setup in C code
s390/kasan: support memcpy_real with TRACE_IRQFLAGS
s390/crypto: Fix unsigned variable compared with zero
s390/pkey: use memdup_user() to simplify code
s390/pkey: fix memory leak within _copy_apqns_from_user()
s390/disassembler: don't hide instruction addresses
s390/cpum_sf: Assign error value to err variable
s390/cpum_sf: Replace function name in debug statements
s390/cpum_sf: Use consistant debug print format for sampling
s390/unwind: drop unnecessary code around calling ftrace_graph_ret_addr()
s390: add error handling to perf_callchain_kernel
s390: always inline current_stack_pointer()
s390/mm: add mm_pxd_folded() checks to pxd_free()
s390/mm: properly clear _PAGE_NOEXEC bit when it is not supported
s390/mm: simplify page table helpers for large entries
s390/mm: make pmd/pud_bad() report large entries as bad
...
David S. Miller [Mon, 25 Nov 2019 23:46:58 +0000 (15:46 -0800)]
Merge git://git./linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-11-26
The following pull-request contains BPF updates for your *net-next* tree.
We've added 2 non-merge commits during the last 1 day(s) which contain
a total of 2 files changed, 14 insertions(+), 3 deletions(-).
The main changes, 2 small fixes are:
1) Fix libbpf out of tree compilation which complained about unknown u32
type used in libbpf_find_vmlinux_btf_id() which needs to be __u32 instead,
from Andrii Nakryiko.
2) Follow-up fix for the prior BPF mmap series where kbuild bot complained
about missing vmalloc_user_node_flags() for no-MMU, also from Andrii Nakryiko.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 25 Nov 2019 23:39:19 +0000 (15:39 -0800)]
Merge tag 'arm64-upstream' of git://git./linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Apart from the arm64-specific bits (core arch and perf, new arm64
selftests), it touches the generic cow_user_page() (reviewed by
Kirill) together with a macro for x86 to preserve the existing
behaviour on this architecture.
Summary:
- On ARMv8 CPUs without hardware updates of the access flag, avoid
failing cow_user_page() on PFN mappings if the pte is old. The
patches introduce an arch_faults_on_old_pte() macro, defined as
false on x86. When true, cow_user_page() makes the pte young before
attempting __copy_from_user_inatomic().
- Covert the synchronous exception handling paths in
arch/arm64/kernel/entry.S to C.
- FTRACE_WITH_REGS support for arm64.
- ZONE_DMA re-introduced on arm64 to support Raspberry Pi 4
- Several kselftest cases specific to arm64, together with a
MAINTAINERS update for these files (moved to the ARM64 PORT entry).
- Workaround for a Neoverse-N1 erratum where the CPU may fetch stale
instructions under certain conditions.
- Workaround for Cortex-A57 and A72 errata where the CPU may
speculatively execute an AT instruction and associate a VMID with
the wrong guest page tables (corrupting the TLB).
- Perf updates for arm64: additional PMU topologies on HiSilicon
platforms, support for CCN-512 interconnect, AXI ID filtering in
the IMX8 DDR PMU, support for the CCPI2 uncore PMU in ThunderX2.
- GICv3 optimisation to avoid a heavy barrier when accessing the
ICC_PMR_EL1 register.
- ELF HWCAP documentation updates and clean-up.
- SMC calling convention conduit code clean-up.
- KASLR diagnostics printed during boot
- NVIDIA Carmel CPU added to the KPTI whitelist
- Some arm64 mm clean-ups: use generic free_initrd_mem(), remove
stale macro, simplify calculation in __create_pgd_mapping(), typos.
- Kconfig clean-ups: CMDLINE_FORCE to depend on CMDLINE, choice for
endinanness to help with allmodconfig"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64: Kconfig: add a choice for endianness
kselftest: arm64: fix spelling mistake "contiguos" -> "contiguous"
arm64: Kconfig: make CMDLINE_FORCE depend on CMDLINE
MAINTAINERS: Add arm64 selftests to the ARM64 PORT entry
arm64: kaslr: Check command line before looking for a seed
arm64: kaslr: Announce KASLR status on boot
kselftest: arm64: fake_sigreturn_misaligned_sp
kselftest: arm64: fake_sigreturn_bad_size
kselftest: arm64: fake_sigreturn_duplicated_fpsimd
kselftest: arm64: fake_sigreturn_missing_fpsimd
kselftest: arm64: fake_sigreturn_bad_size_for_magic0
kselftest: arm64: fake_sigreturn_bad_magic
kselftest: arm64: add helper get_current_context
kselftest: arm64: extend test_init functionalities
kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
kselftest: arm64: mangle_pstate_invalid_daif_bits
kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils
kselftest: arm64: extend toplevel skeleton Makefile
drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform
arm64: mm: reserve CMA and crashkernel in ZONE_DMA32
...
Linus Torvalds [Mon, 25 Nov 2019 23:01:30 +0000 (15:01 -0800)]
Merge tag 'linux-kselftest-5.5-rc1-kunit' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull kselftest KUnit support gtom Shuah Khan:
"This adds KUnit, a lightweight unit testing and mocking framework for
the Linux kernel from Brendan Higgins.
KUnit is not an end-to-end testing framework. It is currently
supported on UML and sub-systems can write unit tests and run them in
UML env. KUnit documentation is included in this update.
In addition, this Kunit update adds 3 new kunit tests:
- proc sysctl test from Iurii Zaikin
- the 'list' doubly linked list test from David Gow
- ext4 tests for decoding extended timestamps from Iurii Zaikin
In the future KUnit will be linked to Kselftest framework to provide a
way to trigger KUnit tests from user-space"
* tag 'linux-kselftest-5.5-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (23 commits)
lib/list-test: add a test for the 'list' doubly linked list
ext4: add kunit test for decoding extended timestamps
Documentation: kunit: Fix verification command
kunit: Fix '--build_dir' option
kunit: fix failure to build without printk
MAINTAINERS: add proc sysctl KUnit test to PROC SYSCTL section
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
MAINTAINERS: add entry for KUnit the unit testing framework
Documentation: kunit: add documentation for KUnit
kunit: defconfig: add defconfigs for building KUnit tests
kunit: tool: add Python wrappers for running KUnit tests
kunit: test: add tests for KUnit managed resources
kunit: test: add the concept of assertions
kunit: test: add tests for kunit test abort
kunit: test: add support for test abort
objtool: add kunit_try_catch_throw to the noreturn list
kunit: test: add initial tests
lib: enable building KUnit in lib/
kunit: test: add the concept of expectations
kunit: test: add assertion printing library
...
Linus Torvalds [Mon, 25 Nov 2019 22:58:09 +0000 (14:58 -0800)]
Merge tag 'linux-kselftest-5.5-rc1-fixes' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"This consists of several fixes to tests and framework.
Masami Hiramatsu fixed several tests to build and run correctly on arm
and other 32bit architectures"
* tag 'linux-kselftest-5.5-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: sync: Fix cast warnings on arm
selftests: net: Fix printf format warnings on arm
selftests: net: Use size_t and ssize_t for counting file size
selftests: vm: Build/Run 64bit tests only on 64bit arch
selftests: proc: Make va_max 1MB
kselftest: Fix NULL INSTALL_PATH for TARGETS runlist
selftests: Move kselftest_module.sh into kselftest/
selftests: gen_kselftest_tar.sh: Do not clobber kselftest/
selftests: breakpoints: Fix a typo of function name
selftests: Fix O= and KBUILD_OUTPUT handling for relative paths
David S. Miller [Mon, 25 Nov 2019 22:57:26 +0000 (14:57 -0800)]
Merge git://git./linux/kernel/git/netdev/net
Merge in networking bug fixes for merge window.
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrii Nakryiko [Mon, 25 Nov 2019 21:29:48 +0000 (13:29 -0800)]
libbpf: Fix usage of u32 in userspace code
u32 is not defined for libbpf when compiled outside of kernel sources (e.g.,
in Github projection). Use __u32 instead.
Fixes:
b8c54ea455dc ("libbpf: Add support to attach to fentry/fexit tracing progs")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191125212948.1163343-1-andriin@fb.com
Andrii Nakryiko [Sat, 23 Nov 2019 22:08:35 +0000 (14:08 -0800)]
mm: Implement no-MMU variant of vmalloc_user_node_flags
To fix build with !CONFIG_MMU, implement it for no-MMU configurations as well.
Fixes:
fc9702273e2e ("bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20191123220835.1237773-1-andriin@fb.com
Linus Torvalds [Mon, 25 Nov 2019 20:21:23 +0000 (12:21 -0800)]
Merge tag 'fsverity-for-linus' of git://git./fs/fscrypt/fscrypt
Pull fsverity updates from Eric Biggers:
"Expose the fs-verity bit through statx()"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
docs: fs-verity: mention statx() support
f2fs: support STATX_ATTR_VERITY
ext4: support STATX_ATTR_VERITY
statx: define STATX_ATTR_VERITY
docs: fs-verity: document first supported kernel version
Linus Torvalds [Mon, 25 Nov 2019 20:19:28 +0000 (12:19 -0800)]
Merge tag 'fscrypt-for-linus' of git://git./fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
- Add the IV_INO_LBLK_64 encryption policy flag which modifies the
encryption to be optimized for UFS inline encryption hardware.
- For AES-128-CBC, use the crypto API's implementation of ESSIV (which
was added in 5.4) rather than doing ESSIV manually.
- A few other cleanups.
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
f2fs: add support for IV_INO_LBLK_64 encryption policies
ext4: add support for IV_INO_LBLK_64 encryption policies
fscrypt: add support for IV_INO_LBLK_64 policies
fscrypt: avoid data race on fscrypt_mode::logged_impl_name
docs: ioctl-number: document fscrypt ioctl numbers
fscrypt: zeroize fscrypt_info before freeing
fscrypt: remove struct fscrypt_ctx
fscrypt: invoke crypto API for ESSIV handling
Linus Torvalds [Mon, 25 Nov 2019 20:17:58 +0000 (12:17 -0800)]
Merge tag 'affs-for-5.5-tag' of git://git./linux/kernel/git/kdave/linux
Pull AFFS updates from David Sterba:
"A minor bugfix and cleanup for AFFS"
* tag 'affs-for-5.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
affs: fix a memory leak in affs_remount
affs: Replace binary semaphores with mutexes
Linus Torvalds [Mon, 25 Nov 2019 20:01:49 +0000 (12:01 -0800)]
Merge tag 'for-5.5-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"User visible changes:
- new block group profiles: RAID1 with 3- and 4- copies
- RAID1 in btrfs has always 2 copies, now add support for 3 and 4
- this is an incompat feature (named RAID1C34)
- recommended use of RAID1C3 is replacement of RAID6 profile on
metadata, this brings a more reliable resiliency against 2
device loss/damage
- support for new checksums
- per-filesystem, set at mkfs time
- fast hash (crc32c successor): xxhash, 64bit digest
- strong hashes (both 256bit): sha256 (slower, FIPS), blake2b
(faster)
- the blake2b module goes via the crypto tree, btrfs.ko has a
soft dependency
- speed up lseek, don't take inode locks unnecessarily, this can
speed up parallel SEEK_CUR/SEEK_SET/SEEK_END by 80%
- send:
- allow clone operations within the same file
- limit maximum number of sent clone references to avoid slow
backref walking
- error message improvements: device scan prints process name and PID
Core changes:
- cleanups
- remove unique workqueue helpers, used to provide a way to avoid
deadlocks in the workqueue code, now done in a simpler way
- remove lots of indirect function calls in compression code
- extent IO tree code moved out of extent_io.c
- cleanup backup superblock handling at mount time
- transaction life cycle documentation and cleanups
- locking code cleanups, annotations and documentation
- add more cold, const, pure function attributes
- removal of unused or redundant struct members or variables
- new tree-checker sanity tests
- try to detect missing INODE_ITEM, cross-reference checks of
DIR_ITEM, DIR_INDEX, INODE_REF, and XATTR_* items
- remove own bio scheduling code (used to avoid checksum submissions
being stuck behind other IO), replaced by cgroup controller-based
code to allow better control and avoid priority inversions in cases
where the custom and cgroup scheduling disagreed
Fixes:
- avoid getting stuck during cyclic writebacks
- fix trimming of ranges crossing block group boundaries
- fix rename exchange on subvolumes, all involved subvolumes need to
be recorded in the transaction"
* tag 'for-5.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (137 commits)
btrfs: drop bdev argument from submit_extent_page
btrfs: remove extent_map::bdev
btrfs: drop bio_set_dev where not needed
btrfs: get bdev directly from fs_devices in submit_extent_page
btrfs: record all roots for rename exchange on a subvol
Btrfs: fix block group remaining RO forever after error during device replace
btrfs: scrub: Don't check free space before marking a block group RO
btrfs: change btrfs_fs_devices::rotating to bool
btrfs: change btrfs_fs_devices::seeding to bool
btrfs: rename btrfs_block_group_cache
btrfs: block-group: Reuse the item key from caller of read_one_block_group()
btrfs: block-group: Refactor btrfs_read_block_groups()
btrfs: document extent buffer locking
btrfs: access eb::blocking_writers according to ACCESS_ONCE policies
btrfs: set blocking_writers directly, no increment or decrement
btrfs: merge blocking_writers branches in btrfs_tree_read_lock
btrfs: drop incompat bit for raid1c34 after last block group is gone
btrfs: add incompat for raid1 with 3, 4 copies
btrfs: add support for 4-copy replication (raid1c4)
btrfs: add support for 3-copy replication (raid1c3)
...
Linus Torvalds [Mon, 25 Nov 2019 19:55:30 +0000 (11:55 -0800)]
Merge tag 'mtd/for-5.5' of git://git./linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"MTD core:
- drop inactive maintainers, update the repositories and add IRC
channel
- debugfs functions improvements
- initialize more structure parameters
- misc fixes reported by robots
MTD devices:
- spear_smi: Fixed Write Burst mode
- new Intel IXP4xx flash probing hook
Raw NAND core:
- useless extra checks dropped
- update the detection of the bad block markers position
Raw NAND controller drivers:
- Cadence: new driver
- Brcmnand: support for flash-dma v0 + fixes
- Denali: drop support for the legacy controller/chip DT representation
- superfluous dev_err() calls removed
SPI NOR core changes:
- introduce 'struct spi_nor_controller_ops'
- clean the Register Operations methods
- use dev_dbg insted of dev_err for low level info
- fix retlen handling in sst_write()
- fix silent truncations in spi_nor_read and spi_nor_read_raw()
- fix the clearing of QE bit on lock()/unlock()
- rework the disabling of the block write protection
- rework the Quad Enable methods
- make sure nor->spimem and nor->controller_ops are mutually exclusive
- set default Quad Enable method for ISSI flashes
- add support for few flashes
SPI NOR controller drivers changes:
- intel-spi:
- support chips without software sequencer
- add support for Intel Cannon Lake and Intel Comet Lake-H flashes
CFI core changes:
- code cleanups related useless initializers and coding style issues
- fix for a possible double free problem in cfi_cmdset_0002
- improved HyperFlash error reporting and handling in cfi_cmdset_0002 core"
* tag 'mtd/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (73 commits)
mtd: devices: fix mchp23k256 read and write
mtd: no need to check return value of debugfs_create functions
mtd: spi-nor: Set default Quad Enable method for ISSI flashes
mtd: spi-nor: Add support for is25wp256
mtd: spi-nor: Add support for w25q256jw
mtd: spi-nor: Move condition to avoid a NULL check
mtd: spi-nor: Make sure nor->spimem and nor->controller_ops are mutually exclusive
mtd: spi-nor: Rename Quad Enable methods
mtd: spi-nor: Merge spansion Quad Enable methods
mtd: spi-nor: Rename CR_QUAD_EN_SPAN to SR2_QUAD_EN_BIT1
mtd: spi-nor: Extend the SR Read Back test
mtd: spi-nor: Rework the disabling of block write protection
mtd: spi-nor: Fix clearing of QE bit on lock()/unlock()
mtd: cfi_cmdset_0002: fix delayed error detection on HyperFlash
mtd: cfi_cmdset_0002: only check errors when ready in cfi_check_err_status()
mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup()
mtd: cfi_cmdset_*: kill useless 'ret' variable initializers
mtd: cfi_util: use DIV_ROUND_UP() in cfi_udelay()
mtd: spi-nor: Print debug message when the read back test fails
mtd: spi-nor: Check all the bits written, not just the BP ones
...
Linus Torvalds [Mon, 25 Nov 2019 19:53:26 +0000 (11:53 -0800)]
Merge tag 'for-5.5/dm-changes' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Fix DM core to disallow stacking request-based DM on partitions.
- Fix DM raid target to properly resync raidset even if bitmap needed
additional pages.
- Fix DM crypt performance regression due to use of WQ_HIGHPRI for the
IO and crypt workqueues.
- Fix DM integrity metadata layout that was aligned on 128K boundary
rather than the intended 4K boundary (removes 124K of wasted space
for each metadata block).
- Improve the DM thin, cache and clone targets to use spin_lock_irq
rather than spin_lock_irqsave where possible.
- Fix DM thin single thread performance that was lost due to needless
workqueue wakeups.
- Fix DM zoned target performance that was lost due to excessive
backing device checks.
- Add ability to trigger write failure with the DM dust test target.
- Fix whitespace indentation in drivers/md/Kconfig.
- Various smalls fixes and cleanups (e.g. use struct_size, fix
uninitialized variable, variable renames, etc).
* tag 'for-5.5/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (22 commits)
Revert "dm crypt: use WQ_HIGHPRI for the IO and crypt workqueues"
dm: Fix Kconfig indentation
dm thin: wakeup worker only when deferred bios exist
dm integrity: fix excessive alignment of metadata runs
dm raid: Remove unnecessary negation of a shift in raid10_format_to_md_layout
dm zoned: reduce overhead of backing device checks
dm dust: add limited write failure mode
dm dust: change ret to r in dust_map_read and dust_map
dm dust: change result vars to r
dm cache: replace spin_lock_irqsave with spin_lock_irq
dm bio prison: replace spin_lock_irqsave with spin_lock_irq
dm thin: replace spin_lock_irqsave with spin_lock_irq
dm clone: add bucket_lock_irq/bucket_unlock_irq helpers
dm clone: replace spin_lock_irqsave with spin_lock_irq
dm writecache: handle REQ_FUA
dm writecache: fix uninitialized variable warning
dm stripe: use struct_size() in kmalloc()
dm raid: streamline rs_get_progress() and its raid_status() caller side
dm raid: simplify rs_setup_recovery call chain
dm raid: to ensure resynchronization, perform raid set grow in preresume
...
Linus Torvalds [Mon, 25 Nov 2019 19:37:01 +0000 (11:37 -0800)]
Merge tag 'for-5.5/disk-revalidate-
20191122' of git://git.kernel.dk/linux-block
Pull disk revalidation updates from Jens Axboe:
"This continues the work that Jan Kara started to thoroughly cleanup
and consolidate how we handle rescans and revalidations"
* tag 'for-5.5/disk-revalidate-
20191122' of git://git.kernel.dk/linux-block:
block: move clearing bd_invalidated into check_disk_size_change
block: remove (__)blkdev_reread_part as an exported API
block: fix bdev_disk_changed for non-partitioned devices
block: move rescan_partitions to fs/block_dev.c
block: merge invalidate_partitions into rescan_partitions
block: refactor rescan_partitions
Linus Torvalds [Mon, 25 Nov 2019 19:22:37 +0000 (11:22 -0800)]
Merge tag 'for-5.5/zoned-
20191122' of git://git.kernel.dk/linux-block
Pull zoned block device update from Jens Axboe:
"Enhancements and improvements to the zoned device support"
* tag 'for-5.5/zoned-
20191122' of git://git.kernel.dk/linux-block:
scsi: sd_zbc: Remove set but not used variable 'buflen'
block: rework zone reporting
scsi: sd_zbc: Cleanup sd_zbc_alloc_report_buffer()
null_blk: Add zone_nr_conv to features
null_blk: clean up report zones
null_blk: clean up the block device operations
block: Remove partition support for zoned block devices
block: Simplify report zones execution
block: cleanup the !zoned case in blk_revalidate_disk_zones
block: Enhance blk_revalidate_disk_zones()