| Commit message (Collapse) | Author | Age |
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Fixes a broken hsync start value uncovered by:
abc0b1447d4974963548777a5ba4a4457c82c426
(drm: Perform basic sanity checks on probed modes)
The driver handled the bad hsync start elsewhere, but
the above commit prevented it from getting added.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=91401
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Need to setup the deep color and avi packets regardless of
audio setup.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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1. Always assign audio function pointers even if the display does
not support audio. We need to properly disable the audio stream
when when using a non-audio capable monitor. Fixes purple line
on some hdmi monitors.
2. Check if a pin is in use by another encoder before disabling
it.
v2: make sure we've fetched the edid before checking audio and
look up the encoder before calling audio_detect since
connector->encoder may not be assigned yet. Separate
pin and afmt. They are allocated at different times and
have no dependency on eachother.
v3: fix connector fetching in encoder functions
v4: fix missed dig->pin check in dce6_afmt_write_latency_fields
bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=93701
https://bugzilla.redhat.com/show_bug.cgi?id=1236337
https://bugs.freedesktop.org/show_bug.cgi?id=91041
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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This allows amdgpu_drm.h to be reused verbatim in libdrm.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
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This allows radeon_drm.h to be reused verbatim in libdrm.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
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git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
Two more nouveau fixes.
* 'linux-4.2' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau/nouveau/ttm: fix tiled system memory with Maxwell
drm/nouveau/kms/nv50-: guard against enabling cursor on disabled heads
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Add Maxwell to the switch statement that sets node->memtype, otherwise
all tiling information is ignored for buffers in system memory.
While we are at it, make that switch statement explicitly complain the
next time we meet a non-handled card family.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Userspace has started doing this, which upsets the display class hw
error checking in various unpleasant ways.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
Various minor fixes all over the place, nothing too scary.
* 'linux-4.2' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau/fbcon/g80: reduce PUSH_SPACE alloc, fire ring on accel init
drm/nouveau/fbcon/gf100-: reduce RING_SPACE allocation
drm/nouveau/fbcon/nv11-: correctly account for ring space usage
drm/nouveau/bios: add proper support for opcode 0x59
drm/nouveau/bios: add 0x59 and 0x5a opcodes
drm/nouveau/disp: Use NULL for pointers
drm/nouveau/pm: fix a potential race condition when creating an engine context
drm/nouveau/pm: prevent freeing the wrong engine context
drm/nouveau/gr/gf100: wait for GR idle after GO_IDLE bundle
drm/nouveau/gr/gf100: wait on bottom half of FE's pipeline
drm/nouveau/fifo/gk104: kick channels when deactivating them
drm/nouveau/ibus/gk20a: increase SM wait timeout
drm/nouveau/platform: fix compile error if !CONFIG_IOMMU
drm/nouveau: Do not leak client objects
drm/nouveau/clk/gt215: u32->s32 for difference in req. and set clock
drm/nouveau/drm/nv04-nv40/instmem: protect access to priv->heap by mutex
drm/nouveau: hold mutex when calling nouveau_abi16_fini()
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Only 58 words get written to the ring, not 59. Also, normalize the accel
init wrt nvc0 and nv04 fbcon impls by firing the ring at accel init time
rather than waiting until "later".
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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We only emit 58 words to the ring, not 60.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The RING_SPACE macro accounts how much space is used up so it's
important to ask it for the right amount. Incorrect accounting of this
can cause page faults down the line as writes are attempted outside of
the ring.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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More analysis shows that this is identical to 0x79 except that it loads
the frequency indirectly from elsewhere in the VBIOS.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91025
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Opcode 0x5a is a register write for data looked up from another part of
the VBIOS image. 0x59 is a more complex opcode, but we may as well
recognize it. These occur on a single known instance of Riva TNT2
hardware.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91025
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The return type of exec_lookup() is struct nvkm_output *, so it should
return NULL rather than 0.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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There is always the possiblity that the ppm->context pointer would get
partially updated and accidentally would equal ctx. This would allow two
contexts to co-exist, which is not acceptable. Moving the test to the
critical section takes care of this problem.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This fixes a crash when multiple PM engine contexts are created.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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After submitting a GO_IDLE bundle, one must wait for GR to effectively
be idle before submitting the next bundle. Failure to do so may result
in undefined behavior in some rare cases.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Kary Jin <karyj@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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When emitting the ICMD bundle, wait on the bottom half (bit 3 of the
GR_STATUS register) instead of upper half (bit 2) to make sure methods
are effectively emitted.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Kicking channels is part of their deactivation process. Maxwell chips
are particularly sensitive to this, and can start fetching the previous
pushbuffer of a recycled channel if this is not done.
While we are at it, improve the channel preemption code to only wait for
bit 20 of 0x002634 to turn to 0, as it is the bit indicating a
preempt is pending.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Increase clock timeout for SYS, FPB and GPC in order to avoid operation
failure at high gpcclk rate.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The lack of IOMMU API support can make nouveau_platform_probe_iommu()
fail to compile because struct iommu_ops is then empty. Fix this by
skipping IOMMU probe in that case - lack of IOMMU on platform devices
is sub-optimal, but is not an error.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The memory allocated for a nouveau_cli object in nouveau_cli_create() is
never freed. Free the memory in nouveau_cli_destroy() to plug this leak.
kmemleak recorded this after running a couple of nouveau test programs.
Note that kmemleak points at drm_open_helper() because for some reason
it thinks that skipping the first two stack frames is a good idea.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This difference can of course be negative too...
Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This fixes the list_del corruption reported
at <https://bugzilla.redhat.com/1205985>.
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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This was the only access to cli->abi16 without holding the mutex.
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fixes from Dave Chinner:
"There are a couple of recently found, long standing remote attribute
corruption fixes caused by log recovery getting confused after a
crash, and the new DAX code in XFS (merged in 4.2-rc1) needs to
actually use the DAX fault path on read faults.
Summary:
- remote attribute log recovery corruption fixes
- DAX page faults need to use direct mappings, not a page cache
mapping"
* tag 'xfs-for-linus-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: remote attributes need to be considered data
xfs: remote attribute headers contain an invalid LSN
xfs: call dax_fault on read page faults for DAX
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We don't log remote attribute contents, and instead write them
synchronously before we commit the block allocation and attribute
tree update transaction. As a result we are writing to the allocated
space before the allcoation has been made permanent.
As a result, we cannot consider this allocation to be a metadata
allocation. Metadata allocation can take blocks from the free list
and so reuse them before the transaction that freed the block is
committed to disk. This behaviour is perfectly fine for journalled
metadata changes as log recovery will ensure the free operation is
replayed before the overwrite, but for remote attribute writes this
is not the case.
Hence we have to consider the remote attribute blocks to contain
data and allocate accordingly. We do this by dropping the
XFS_BMAPI_METADATA flag from the block allocation. This means the
allocation will not use blocks that are on the busy list without
first ensuring that the freeing transaction has been committed to
disk and the blocks removed from the busy list. This ensures we will
never overwrite a freed block without first ensuring that it is
really free.
cc: <stable@vger.kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
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In recent testing, a system that crashed failed log recovery on
restart with a bad symlink buffer magic number:
XFS (vda): Starting recovery (logdev: internal)
XFS (vda): Bad symlink block magic!
XFS: Assertion failed: 0, file: fs/xfs/xfs_log_recover.c, line: 2060
On examination of the log via xfs_logprint, none of the symlink
buffers in the log had a bad magic number, nor were any other types
of buffer log format headers mis-identified as symlink buffers.
Tracing was used to find the buffer the kernel was tripping over,
and xfs_db identified it's contents as:
000: 5841524d 00000000 00000346 64d82b48 8983e692 d71e4680 a5f49e2c b317576e
020: 00000000 00602038 00000000 006034ce d0020000 00000000 4d4d4d4d 4d4d4d4d
040: 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d
060: 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d 4d4d4d4d
.....
This is a remote attribute buffer, which are notable in that they
are not logged but are instead written synchronously by the remote
attribute code so that they exist on disk before the attribute
transactions are committed to the journal.
The above remote attribute block has an invalid LSN in it - cycle
0xd002000, block 0 - which means when log recovery comes along to
determine if the transaction that writes to the underlying block
should be replayed, it sees a block that has a future LSN and so
does not replay the buffer data in the transaction. Instead, it
validates the buffer magic number and attaches the buffer verifier
to it. It is this buffer magic number check that is failing in the
above assert, indicating that we skipped replay due to the LSN of
the underlying buffer.
The problem here is that the remote attribute buffers cannot have a
valid LSN placed into them, because the transaction that contains
the attribute tree pointer changes and the block allocation that the
attribute data is being written to hasn't yet been committed. Hence
the LSN field in the attribute block is completely unwritten,
thereby leaving the underlying contents of the block in the LSN
field. It could have any value, and hence a future overwrite of the
block by log recovery may or may not work correctly.
Fix this by always writing an invalid LSN to the remote attribute
block, as any buffer in log recovery that needs to write over the
remote attribute should occur. We are protected from having old data
written over the attribute by the fact that freeing the block before
the remote attribute is written will result in the buffer being
marked stale in the log and so all changes prior to the buffer stale
transaction will be cancelled by log recovery.
Hence it is safe to ignore the LSN in the case or synchronously
written, unlogged metadata such as remote attribute blocks, and to
ensure we do that correctly, we need to write an invalid LSN to all
remote attribute blocks to trigger immediate recovery of metadata
that is written over the top.
As a further protection for filesystems that may already have remote
attribute blocks with bad LSNs on disk, change the log recovery code
to always trigger immediate recovery of metadata over remote
attribute blocks.
cc: <stable@vger.kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
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When modifying the patch series to handle the XFS MMAP_LOCK nesting
of page faults, I botched the conversion of the read page fault
path, and so it is only every calling through the page cache. Re-add
the necessary __dax_fault() call for such files.
Because the get_blocks callback on read faults may not set up the
mapping buffer correctly to allow unwritten extent completion to be
run, we need to allow callers of __dax_fault() to pass a null
complete_unwritten() callback. The DAX code always zeros the
unwritten page when it is read faulted so there are no stale data
exposure issues with not doing the conversion. The only downside
will be the potential for increased CPU overhead on repeated read
faults of the same page. If this proves to be a problem, then the
filesystem needs to fix it's get_block callback and provide a
convert_unwritten() callback to the read fault path.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"The main change is support for keyboards and touchpads found in 2015
editions of Macbooks"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Revert "Input: zforce - don't overwrite the stack"
Input: bcm5974 - add support for the 2015 Macbook Pro
HID: apple: Add support for the 2015 Macbook Pro
Input: bcm5974 - prepare for a new trackpad generation
Input: synaptics - dump ext10 capabilities as well
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This reverts commit 7d01cd261c76f95913c81554a751968a1d282d3a because
with given FRAME_MAXSIZE of 257 the check will never trigger and it
causes warnings from GCC (with -Wtype-limits). Also the check was
incorrect as it was not accounting for the already read 2 bytes of data
stored in the buffer.
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Add support for the MacBookPro12,1 model. This patch needs to be
applied together with the accompanied HID patch, as usual.
Tested-by: John Horan <knasher@gmail.com>
Tested-by: Jochen Radmacher <jradmacher@gmx.de>
Tested-by: Yang Hongyang <burnef@gmail.com>
Tested-by: Yen-Chin, Lee <coldnew.tw@gmail.com>
Tested-by: George Hilios <ghilios@gmail.com>
Tested-by: Janez Urevc <janez@janezurevc.name>
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This patch adds keyboard support for MacbookPro12,1 as WELLSPRING9
(0x0272, 0x0273, 0x0274). The touchpad is handled in a separate
bcm5974 patch, as usual.
Tested-by: John Horan <knasher@gmail.com>
Tested-by: Jochen Radmacher <jradmacher@gmx.de>
Tested-by: Yang Hongyang <burnef@gmail.com>
Tested-by: Yen-Chin, Lee <coldnew.tw@gmail.com>
Tested-by: George Hilios <ghilios@gmail.com>
Tested-by: Janez Urevc <janez@janezurevc.name>
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
Acked-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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With the advent of the Macbook Pro 12, we see a new generation of
trackpads, capable of force sensoring and haptic feedback.
This patch prepares for the new device by adding configuration data
for the code paths that would otherwise look different.
Tested-by: John Horan <knasher@gmail.com>
Tested-by: Jochen Radmacher <jradmacher@gmx.de>
Tested-by: Yang Hongyang <burnef@gmail.com>
Tested-by: Yen-Chin, Lee <coldnew.tw@gmail.com>
Tested-by: George Hilios <ghilios@gmail.com>
Tested-by: Janez Urevc <janez@janezurevc.name>
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Make extended capabilities obtained through $10 query also available in
touchpad identification.
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Two patches headed for -stable.
nct7802: Fix integer overflow seen when writing voltage limits
nct7904: Rename pwm attributes to match hwmon ABI"
* tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (nct7802) Fix integer overflow seen when writing voltage limits
hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
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Writing a large value into a voltage limit attribute can result
in an overflow due to an auto-conversion from unsigned long to
unsigned int.
Cc: Constantine Shulyupin <const@MakeLinux.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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pwm attributes have well defined names, which should be used.
Cc: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
Cc: stable@vger.kernel.org #v4.1+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These fix three regressions, two recent ones (cpufreq core and ACPI
device power management) and one introduced during the 4.1 cycle
(intel_pstate).
Specifics:
- Fix a recently introduced issue in the cpufreq core causing it to
attempt to create duplicate symbolic links to the policy directory
in sysfs for CPUs that are offline when the cpufreq driver is being
registered (Rafael J Wysocki)
- Fix a recently introduced problem in the ACPI device power
management core code causing it to store an incorrect value in the
device object's power.state field in some cases which in turn leads
to attempts to turn power resources off while they should still be
on going forward (Mika Westerberg)
- Fix an intel_pstate driver issue introduced during the 4.1 cycle
which leads to kernel panics on boot on Knights Landing chips due
to incomplete support for them in that driver (Lukasz Anaczkowski)"
* tag 'pm+acpi-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Avoid attempts to create duplicate symbolic links
ACPI / PM: Use target_state to set the device power state
intel_pstate: Add get_scaling cpu_defaults param to Knights Landing
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* pm-cpufreq:
cpufreq: Avoid attempts to create duplicate symbolic links
intel_pstate: Add get_scaling cpu_defaults param to Knights Landing
* acpi-pm:
ACPI / PM: Use target_state to set the device power state
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Commit 20dacb71ad28 ("ACPI / PM: Rework device power management to follow
ACPI 6") changed the device power management to use D3hot if the device
in question does not have _PR3 method even if D3cold was requested by the
caller.
However, if the device has _PR3 device->power.state is also set to D3hot
instead of D3Cold after power resources have been turned off because
device->power.state will be assigned from "state" instead of
"target_state".
Next time the device is transitioned to D0, acpi_power_transition() will
find that the current power state of the device is D3hot instead of D3cold
which causes it to power down all resources required for the current
(wrong) state D3hot.
Below is a simplified ASL example of a real touch panel device which
triggers the problem:
Scope (TPL1)
{
Name (_PR0, Package (1) { \_SB.PCI0.I2C1.PXTC })
Name (_PR3, Package (1) { \_SB.PCI0.I2C1.PXTC })
...
}
In both D0 and D3hot the same power resource is required. However, when
acpi_power_transition() turns off power resources required for D3hot (as
the device is transitioned to D0) it powers down PXTC which then makes the
device to lose its power.
Fix this by assigning "target_state" to the device power state instead of
"state" that is always D3hot even for devices with valid _PR3.
Fixes: 20dacb71ad28 (ACPI / PM: Rework device power management to follow ACPI 6)
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After commit 87549141d516 (cpufreq: Stop migrating sysfs files on
hotplug) there is a problem with CPUs that share cpufreq policy
objects with other CPUs and are initially offline.
Say CPU1 shares a policy with CPU0 which is online and is registered
first. As part of the registration process, cpufreq_add_dev() is
called for it. It creates the policy object and a symbolic link
to it from the CPU1's sysfs directory. If CPU1 is registered
subsequently and it is offline at that time, cpufreq_add_dev() will
attempt to create a symbolic link to the policy object for it, but
that link is present already, so a warning about that will be
triggered.
To avoid that warning, make cpufreq use an additional CPU mask
containing related CPUs that are actually present for each policy
object. That mask is initialized when the policy object is populated
after its creation (for the first online CPU using it) and it includes
CPUs from the "policy CPUs" mask returned by the cpufreq driver's
->init() callback that are physically present at that time. Symbolic
links to the policy are created only for the CPUs in that mask.
If cpufreq_add_dev() is invoked for an offline CPU, it checks the
new mask and only creates the symlink if the CPU was not in it (the
CPU is added to the mask at the same time).
In turn, cpufreq_remove_dev() drops the given CPU from the new mask,
removes its symlink to the policy object and returns, unless it is
the CPU owning the policy object. In that case, the policy object
is moved to a new CPU's sysfs directory or deleted if the CPU being
removed was the last user of the policy.
While at it, notice that cpufreq_remove_dev() can't fail, because
its return value is ignored, so make it ignore return values from
__cpufreq_remove_dev_prepare() and __cpufreq_remove_dev_finish()
and prevent these functions from aborting on errors returned by
__cpufreq_governor(). Also drop the now unused sif argument from
them.
Fixes: 87549141d516 (cpufreq: Stop migrating sysfs files on hotplug)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-and-tested-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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Scaling for Knights Landing is same as the default scaling (100000).
When Knigts Landing support was added to the pstate driver, this
parameter was omitted resulting in a kernel panic during boot.
Fixes: b34ef932d79a (intel_pstate: Knights Landing support)
Reported-by: Yasuaki Ishimatsu <yishimat@redhat.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Lukasz Anaczkowski <lukasz.anaczkowski@intel.com>
Acked-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Cc: 4.1+ <stable@vger.kernel.org> # 4.1+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- fix DM thinp to consistently return -ENOSPC when out of data space
- fix a logic bug in the DM cache smq policy's creation error path
- revert a DM cache 4.2-rc3 change that reduced writeback efficiency
- fix a hang on DM cache device destruction due to improper
prealloc_used accounting introduced in 4.2-rc3
- update URL for dm-crypt wiki page
* tag 'dm-4.2-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix device destroy hang due to improper prealloc_used accounting
Revert "dm cache: do not wake_worker() in free_migration()"
dm crypt: update wiki page URL
dm cache policy smq: fix alloc_bitset check that always evaluates as false
dm thin: return -ENOSPC when erroring retry list due to out of data space
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Commit 665022d72f9 ("dm cache: avoid calls to prealloc_free_structs() if
possible") introduced a regression that caused the removal of a DM cache
device to hang in cache_postsuspend()'s call to wait_for_migrations()
with the following stack trace:
[<ffffffff81651457>] schedule+0x37/0x80
[<ffffffffa041e21b>] cache_postsuspend+0xbb/0x470 [dm_cache]
[<ffffffff810ba970>] ? prepare_to_wait_event+0xf0/0xf0
[<ffffffffa0006f77>] dm_table_postsuspend_targets+0x47/0x60 [dm_mod]
[<ffffffffa0001eb5>] __dm_destroy+0x215/0x250 [dm_mod]
[<ffffffffa0004113>] dm_destroy+0x13/0x20 [dm_mod]
[<ffffffffa00098cd>] dev_remove+0x10d/0x170 [dm_mod]
[<ffffffffa00097c0>] ? dev_suspend+0x240/0x240 [dm_mod]
[<ffffffffa0009f85>] ctl_ioctl+0x255/0x4d0 [dm_mod]
[<ffffffff8127ac00>] ? SYSC_semtimedop+0x280/0xe10
[<ffffffffa000a213>] dm_ctl_ioctl+0x13/0x20 [dm_mod]
[<ffffffff811fd432>] do_vfs_ioctl+0x2d2/0x4b0
[<ffffffff81117d5f>] ? __audit_syscall_entry+0xaf/0x100
[<ffffffff81022636>] ? do_audit_syscall_entry+0x66/0x70
[<ffffffff811fd689>] SyS_ioctl+0x79/0x90
[<ffffffff81023e58>] ? syscall_trace_leave+0xb8/0x110
[<ffffffff81654f6e>] entry_SYSCALL_64_fastpath+0x12/0x71
Fix this by accounting for the call to prealloc_data_structs()
immediately _before_ the call as opposed to after. This is needed
because it is possible to break out of the control loop after the call
to prealloc_data_structs() but before prealloc_used was set to true.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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This reverts commit 386cb7cdeeef97e0bf082a8d6bbfc07a2ccce07b.
Taking the wake_worker() out of free_migration() will slow writeback
dramatically, and hence adaptability.
Say we have 10k blocks that need writing back, but are only able to
issue 5 concurrently due to the migration bandwidth: it's imperative
that we wake_worker() immediately after migration completion; waiting
for the next 1 second wake up (via do_waker) means it'll take a long
time to write that all back.
Reported-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Cryptsetup moved to gitlab. This is a leftover from commit e44f23b32dc7
(dm crypt: update URLs to new cryptsetup project page, 2015-04-05).
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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static analysis by cppcheck has found a check on alloc_bitset that
always evaluates as false and hence never finds an allocation failure:
[drivers/md/dm-cache-policy-smq.c:1689]: (warning) Logical conjunction
always evaluates to false: !EXPR && EXPR.
Fix this by removing the incorrect mq->cache_hit_bits check
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Otherwise -EIO would be returned when -ENOSPC should be used
consistently.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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