Chris Wilson [Tue, 7 Apr 2015 15:20:39 +0000 (16:20 +0100)]
drm/i915: Include active flag when describing objects in debugfs
Since we use obj->active as a hint in many places throughout the code,
knowing its state in debugfs is extremely useful.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:38 +0000 (16:20 +0100)]
drm/i915: Split batch pool into size buckets
Now with the trimmed memcpy before the command parser, we try to
allocate many different sizes of batches, predominantly one or two
pages. We can therefore speed up searching for a good sized batch by
keeping the objects of buckets of roughly the same size.
v2: Add a comment about bucket sizes
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:37 +0000 (16:20 +0100)]
drm/i915: Free batch pool when idle
At runtime, this helps ensure that the batch pools are kept trim and
fast. Then at suspend, this releases memory that we do not need to
restore. It also ties into the oom-notifier to ensure that we recover as
much kernel memory as possible during OOM.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:36 +0000 (16:20 +0100)]
drm/i915: Split the batch pool by engine
I woke up one morning and found 50k objects sitting in the batch pool
and every search seemed to iterate the entire list... Painting the
screen in oils would provide a more fluid display.
One issue with the current design is that we only check for retirements
on the current ring when preparing to submit a new batch. This means
that we can have thousands of "active" batches on another ring that we
have to walk over. The simplest way to avoid that is to split the pools
per ring and then our LRU execution ordering will also ensure that the
inactive buffers remain at the front.
v2: execlists still requires duplicate code.
v3: execlists requires more duplicate code
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:35 +0000 (16:20 +0100)]
drm/i915: Tidy batch pool logic
Move the madvise logic out of the execbuffer main path into the
relatively rare allocation path, making the execbuffer manipulation less
fragile.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:34 +0000 (16:20 +0100)]
drm/i915: Split i915_gem_batch_pool into its own header
In the next patch, I want to use the structure elsewhere and so require
it defined earlier. Rather than move the definition to an earlier location
where it feels very odd, place it in its own header file.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The premise that media/blitter workloads are not affected by boosting is
patently false with a trip through igt. The question that remains is
what exactly is going wrong with the media workload that prompted this?
Hopefully that would be fixed by the missing agressive downclocking, in
addition to the extra restrictions imposed on how frequent a process is
allowed to boost.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Deepak S <deepak.s@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll> Acked-by: Deepak S <deepak.s@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:32 +0000 (16:20 +0100)]
drm/i915: Deminish contribution of wait-boosting from clients
With boosting for missed pageflips, we have a much stronger indication
of when we need to (temporarily) boost GPU frequency to ensure smooth
delivery of frames. So now only allow each client to perform one RPS boost
in each period of GPU activity due to stalling on results.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Deepak S <deepak.s@linux.intel.com> Reviewed-by: Deepak S <deepak.s@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:31 +0000 (16:20 +0100)]
drm/i915: Boost GPU frequency if we detect outstanding pageflips
If we hit a vblank and see that have a pageflip queue but not yet
processed, ensure that the GPU is running at maximum in order to clear
the backlog. Pageflips are only queued for the following vblank, if we
miss it, there will be a visible stutter. Boosting the GPU frequency
doesn't prevent us from missing the target vblank, but it should help
the subsequent frames hitting theirs.
v2: Reorder vblank vs flip-complete so that we only check for a missed
flip after processing the completion events, and avoid spurious boosts.
v3: Rename missed_vblank
v4: Rebase
v5: Cancel the outstanding work in runtime suspend
v6: Rebase
v7: Rebase required fixing
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Deepak S<deepak.s@linux.intel.com> Reviewed-by: Deepak S<deepak.s@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:29 +0000 (16:20 +0100)]
drm/i915: Fix computation of last_adjustment for RPS autotuning
The issue is that by computing the last_adj value after applying the
clamping, we can end up with a bogus value for feeding into the next RPS
autotuning step.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Deepak S <deepak.s@linux.intel.com> Reviewed-by: Deepak S <deepak.s@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:28 +0000 (16:20 +0100)]
drm/i915: Agressive downclocking on Baytrail
Reuse the same reclocking strategy for Baytail as on its bigger brethren,
Sandybridge and Ivybridge. In particular, this makes the device quicker
to reclock (both up and down) though the tendency now is to downclock
more aggressively to compensate for the RPS boosts.
v2: Rebase
v3: Exclude Cherrytrail as Deepak was concerned that the increased
number of register writes would wake the common powerwell too often.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Deepak S <deepak.s@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Deepak S <deepak.s@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:26 +0000 (16:20 +0100)]
drm/i915: Fix the flip synchronisation to consider mmioflips
Currently we emit semaphore synchronisation as if we were going to flip
using the target CS engine, but we then change our minds and do the flip
using the CPU. Consequently we write instructions to the ring but never
use them - even to the point of filling that ring up entirely and never
submitting a request.
The wrinkle in the ointment is that we have to tell a white lie to
pin-to-display for it to skip the synchronisation for mmioflips as we
will create a task specifically for that slow synchronisation. An oddity
of note is the discrepancy in requests that we tell to pin-display to
serialise to and that we then eventually wait upon. This is due to a
limitation in the i915_gem_object_sync() routine that will be lifted
later.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 7 Apr 2015 15:20:25 +0000 (16:20 +0100)]
drm/i915: Cache last obj->pages location for i915_gem_object_get_page()
The biggest user of i915_gem_object_get_page() is the relocation
processing during execbuffer. Typically userspace passes in a set of
relocations in sorted order. Sadly, we alternate between relocations
increasing from the start of the buffers, and relocations decreasing
from the end. However the majority of consecutive lookups will still be
in the same page. We could cache the start of the last sg chain, however
for most callers, the entire sgl is inside a single chain and so we see
no improve from the extra layer of caching.
v2: Avoid the double increment inside unlikely()
References: https://bugs.freedesktop.org/show_bug.cgi?id=88308 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Don't use staged config in intel_mst_pre_enable_dp()
For the conversion to atomic. The pre_enable() hooks are called as part
of the crtc enable sequence, at which point the staged config was
already made effective. Furthermore, the function actually changes
hardware state, so it should anyway deal with current and not staged
config.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Don't use staged config for VLV cdclk calculations
Now that we use a drm atomic state for the legacy modeset, it is
possible to get rid of the usage of intel_crtc->new_config in the
function intel_mode_max_pixclk().
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Thu, 2 Apr 2015 09:35:08 +0000 (10:35 +0100)]
drm/i915: Allow disabling the destination colorkey for overlay
Sometimes userspace wants a true overlay that is never clipped. In such
cases, we need to disable the destination colorkey. However, it is
currently unconditionally enabled in the overlay with no means of
disabling. So rectify that by always default to on, and extending the
UPDATE_ATTR ioctl to support explicit disabling of the colorkey.
This is contrast to the spite code which requires explicit enabling of
either the destination or source colorkey. Handling source colorkey is
still todo for the overlay. (Of course it may be worth migrating overlay
to sprite before then.)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Wed, 1 Apr 2015 08:15:21 +0000 (11:15 +0300)]
drm/i915: add i915 specific connector debugfs file for DPCD
Occasionally it would be interesting to read some of the DPCD registers
for debug purposes, without having to resort to logging. Add an i915
specific i915_dpcd debugfs file for DP and eDP connectors to dump parts
of the DPCD. Currently the DPCD addresses to be dumped are statically
configured, and more can be added trivially.
The implementation also makes it relatively easy to add other i915 and
connector specific debugfs files in the future, as necessary.
This is currently i915 specific just because there's no generic way to
do AUX transactions given just a drm_connector. However it's all pretty
straightforward to port to other drivers.
v2: Add more DPCD registers to dump.
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Rodrigo Vivi [Tue, 31 Mar 2015 23:03:21 +0000 (16:03 -0700)]
drm/i915/bdw: WaProgramL3SqcReg1Default
Program the default initial value of the L3SqcReg1 on BDW for performance
v2: Default confirmed and using intel_ring_emit_wa as Mika pointed out.
v3: Spec shows now a different value. It tells us to set to 0x784000
instead the 0x610000 that is there already.
Also rebased after a long time so using WA_WRITE now.
Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We make use of HW tracking for Selective update region and enable frame sync on
sink. We use hardware's hardcoded data values for frame sync and GTC.
v2: Add 3200x2000 resolution restriction with PSR2, move psr2_support to i915_psr
struct, add aux_frame_sync to independently control aux frame sync, rename the
TP2 TIME macro for 2500us (Rodrigo, Siva)
v3: Moving the resolution restriction to intel_psr_enable so that we check it
only once(Durga)
Cc: Durgadoss R <durgadoss.r@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com> Reviewed-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Wed, 1 Apr 2015 09:36:56 +0000 (10:36 +0100)]
drm/i915: Make debugfs/i915_gem_request more friendly
Count the number of requests in a ring for the user and show who
submitted them.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Set best_encoder field of connector_state also when disabling
The best_encoder field of connector_state wasn't properly set when a
connector was being disabled, leading to an incosistent atomic state.
For now, this doesn't cause anything to blow up, because everywhere
we're using connector_state->best_encoder there is a check for
connector_state->crtc which is properly initialized. I reached the issue
while testing some patches I haven't sent out yet, that remove the usage
of intel_connector->new_encoder from check_digital_port_conflicts(). In
that case, it would be possible to trigger the converted version of the
WARN in that function.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
[danvet: Add commit message augmentation Ander supplied.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Thu, 26 Mar 2015 22:20:22 +0000 (00:20 +0200)]
drm/i915: base gmbus pin validity check on the gmbus pin map array
This will be helpful for adding future platforms. It is better to keep
the information in the single point of truth (the table) instead of
duplicating it into the validity function.
While at it, add dev_priv parameter to the function, also to prepare for
adding future platform support.
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Wed, 1 Apr 2015 07:55:04 +0000 (10:55 +0300)]
drm/i915: index gmbus tables using the pin pair number
Index the gmbus tables directly using the pin instead of having a
confusing "port = i + 1" mapping. This finishes off removing the "gmbus
port" as a notion, and leaves us with just the "gmbus pin".
As pin 0 is invalid by definition and the gmbus tables will have a gap
at that index, add pin validity check to all the loops. This will be
benefitial for supporting platforms that have different numbers of pins,
or gaps.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Thu, 26 Mar 2015 22:20:20 +0000 (00:20 +0200)]
drm/i915: refer to pin instead of port in the intel_i2c.c interfaces
Rename intel_gmbus_is_port_valid to intel_gmbus_is_valid_pin, and rename
port parameters to pin as well. This matches usage all around, as
usually a pin is passed to the validity check function. No functional
changes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Thu, 26 Mar 2015 22:20:19 +0000 (00:20 +0200)]
drm/i915: rename GMBUS_PORT_* macros as GMBUS_PIN_*
The specs refer to pin pairs. Start moving towards using pin rather than
port all around to avoid confusion. No functional changes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
John Harrison [Thu, 19 Mar 2015 12:30:09 +0000 (12:30 +0000)]
drm/i915: Fix for ringbuf space wait in LRC mode
The legacy and LRC code paths have an almost identical procedure for waiting for
space in the ring buffer. They both search for a request in the free list that
will advance the tail to a point where sufficient space is available. They then
wait for that request, retire it and recalculate the free space value.
Unfortunately, a bug in the LRC side meant that the resulting free space might
not be as large as expected and indeed, might not be sufficient. This is because
it was testing against the value of request->tail not request->postfix. Whereas,
when a request is retired, ringbuf->tail is updated to req->postfix not
req->tail.
Another significant difference between the two is that the LRC one did not trust
the wait for request to work! It redid the is there enough space available test
and would fail the call if insufficient. Whereas, the legacy version just said
'return 0' - it assumed the preceeding code works. This difference meant that
the LRC version still worked even with the bug - it just fell back to the
polling wait path.
For: VIZ-5115 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Thomas Daniel <thomas.daniel@intel.com> Reviewed-by: Tomas Elf <tomas.elf@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
John Harrison [Thu, 19 Mar 2015 12:30:08 +0000 (12:30 +0000)]
drm/i915: Move common request allocation code into a common function
The request allocation code is largely duplicated between legacy mode and
execlist mode. The actual difference between the two versions of the code is
pretty minimal.
This patch moves the common code out into a separate function. This is then
called by the execution specific version prior to setting up the one different
value.
For: VIZ-5190 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Tomas Elf <tomas.elf@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
John Harrison [Thu, 19 Mar 2015 12:30:07 +0000 (12:30 +0000)]
drm/i915: Make intel_logical_ring_begin() static
The only usage of intel_logical_ring_begin() is within intel_lrc.c so it can be
made static. To avoid a forward declaration at the top of the file, it and bunch
of other functions have been shuffled upwards.
For: VIZ-5115 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Tomas Elf <tomas.elf@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
John Harrison [Thu, 19 Mar 2015 12:30:06 +0000 (12:30 +0000)]
drm/i915: Rename 'do_execbuf' to 'execbuf_submit'
The submission portion of the execbuffer code path was abstracted into a
function pointer indirection as part of the legacy vs execlist work. The two
implementation functions are called 'i915_gem_ringbuffer_submission' and
'intel_execlists_submission' but the pointer was called 'do_execbuf'. There is
already a 'i915_gem_do_execbuffer' function (which is what calls the pointer
indirection). The name of the pointer is therefore considered to be backwards
and should be changed.
This patch renames it to 'execbuf_submit' which is hopefully a bit clearer.
For: VIZ-5115 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Tomas Elf <tomas.elf@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Tue, 31 Mar 2015 11:12:01 +0000 (14:12 +0300)]
drm/i915: Convert the ddi cdclk code to get_display_clock_speed
Unify the HSW/BDW/SKL cdclk extraction code to conform to the same
.get_display_clock_speed() mold that all the other platforms
use.
v2: Update due to SKL code getting added
v3: Rebase on top of -nightly (introduction of intel_audio.c) (Mika Kahola)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Add v3 note as suggested by Damien.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Tue, 31 Mar 2015 11:11:59 +0000 (14:11 +0300)]
drm/i915: Simplify ilk_get_aux_clock_divider
Now that we are "extracting" the cdclk frequency on ILK-IVB we
can also simplify ilk_get_aux_clock_divider() to calculate the
divider based on cdclk instead of hardcoding the values.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Tue, 31 Mar 2015 11:11:56 +0000 (14:11 +0300)]
drm/i915: Assume 400MHz cdclk for the rest of gen4-7
We don't currently have cdclk extraction code for 965g,snb,ivb.
Let's assume 400 MHz until we know better. That seems to match hints
in various vague documents. Whether that's good enough is not
entirely clear.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Acked-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Tue, 31 Mar 2015 11:11:54 +0000 (14:11 +0300)]
drm/i915: ILK cdclk seems to be 450MHz
Based on the BIOS DP A AUX 2x clock divider the cdclk frequency
on ILK is 450Mhz. At least that holds on my ILK and it matches
how we program the divider.
Supposedly cdclk is 400MHz on SNB and IVB, again based on the AUX 2x
clock divider. Note that I don't have a SNB or IVB machine with
eDP so I couldn't verify what the BIOS used, so this notion is
purely based on our current code,
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Tue, 31 Mar 2015 11:09:47 +0000 (14:09 +0300)]
drm/i915: Return more precise cdclk for gen2/3
Fill out the lower three digits for gen2 and gen3 cdclk frqeuncy. It's
not clear if these are accurate frquencies or just in the ballpark, but
without docs this is the best we can do.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Tue, 31 Mar 2015 07:37:24 +0000 (10:37 +0300)]
drm/i915: Mark the overlay active only if we got ring space
After the GPU has wedged we can't turn on the overlay anymore. Only mark
it as active if we succeed in allocating ring space. This prevents a
WARN (previous;y a BUG) during driver unload if we attempted to use the
overlay after the GPU had already wedged.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Deepak S [Sat, 28 Mar 2015 09:53:34 +0000 (15:23 +0530)]
drm/i915/chv: Remove Wait for a previous gfx force-off
On CHV, PUNIT team confirmed that 'VLV_GFX_CLK_STATUS_BIT' is not a
sticky bit and it will always be set. So ignore Check for previous
Gfx force off during suspend and allow the force clk as part S0ix
Sequence
Signed-off-by: Deepak S <deepak.s@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Durgadoss R [Fri, 27 Mar 2015 11:51:32 +0000 (17:21 +0530)]
drm/i915: PSR: Keep sink state consistent with source
BSpec recommends to keep the main link state consistent
between the source and the sink. As per that, update
the main link state in sink DPCD register to 'active',
for Valleyview based platforms.
Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Tested-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We were missing a convenience stub to aquire the right mutex whilst
dropping the request, so add it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Mon, 30 Mar 2015 14:37:08 +0000 (16:37 +0200)]
Merge tag 'v4.0-rc6' into drm-intel-next
Backmerge Linux 4.0-rc6 because conflicts are (again) getting out of
hand. To make sure we don't lose any bugfixes from the 4.0-rc5-rc6
flurry of patches we've applied them all to -next too.
Conflicts:
drivers/gpu/drm/i915/intel_display.c
Always take the version from -next, we've already handled all
conflicts with explicit cherrypicking.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Linus Torvalds [Sun, 29 Mar 2015 22:09:31 +0000 (15:09 -0700)]
Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"The latest and greatest fixes for ARM platform code. Worth pointing
out are:
- Lines-wise, largest is a PXA fix for dealing with interrupts on DT
that was quite broken. It's still newish code so while we could
have held this off, it seemed appropriate to include now
- Some GPIO fixes for OMAP platforms added a few lines. This was
also fixes for code recently added (this release).
- Small OMAP timer fix to behave better with partially upstreamed
platforms, which is quite welcome.
- Allwinner fixes about operating point control, reducing
overclocking in some cases for better stability.
plus a handful of other smaller fixes across the map"
* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: juno: Fix misleading name of UART reference clock
ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
ARM: socfpga: dts: fix spi1 interrupt
ARM: dts: Fix gpio interrupts for dm816x
ARM: dts: dra7: remove ti,hwmod property from pcie phy
ARM: OMAP: dmtimer: disable pm runtime on remove
ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
ARM: OMAP2+: Fix socbus family info for AM33xx devices
ARM: dts: omap3: Add missing dmas for crypto
ARM: dts: rockchip: disable gmac by default in rk3288.dtsi
MAINTAINERS: add rockchip regexp to the ARM/Rockchip entry
ARM: pxa: fix pxa interrupts handling in DT
ARM: pxa: Fix typo in zeus.c
ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage
Olof Johansson [Sun, 29 Mar 2015 21:00:53 +0000 (14:00 -0700)]
Merge tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes
Allwinner fixes for 4.0
There's a few fixes to merge for 4.0, one to add a select in the machine
Kconfig option to fix a potential build failure, and two fixing cpufreq related
issues.
* tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage
Olof Johansson [Sun, 29 Mar 2015 20:58:54 +0000 (13:58 -0700)]
Merge tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for the -rc cycle:
- Fix a device tree based booting vs legacy booting regression for
omap3 crypto hardware by adding the missing DMA channels.
- Fix /sys/bus/soc/devices/soc0/family for am33xx devices.
- Fix two timer issues that can cause hangs if the timer related
hwmod data is missing like it often initially is for new SoCs.
- Remove pcie hwmods entry from dts as that causes runtime PM to
fail for the PHYs.
- A paper bag type dts configuration fix for dm816x GPIO
interrupts that I just noticed. This is most of the changes
diffstat wise, but as it's a basic feature for connecting
devices and things work otherwise, it should be fixed.
* tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Fix gpio interrupts for dm816x
ARM: dts: dra7: remove ti,hwmod property from pcie phy
ARM: OMAP: dmtimer: disable pm runtime on remove
ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
ARM: OMAP2+: Fix socbus family info for AM33xx devices
ARM: dts: omap3: Add missing dmas for crypto
Olof Johansson [Sun, 29 Mar 2015 20:47:21 +0000 (13:47 -0700)]
Merge tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux into fixes
arm: pxa: fixes for v4.0-rc5
There are only 2 fixes, one for the zeus board about the regulator changes,
where a typo prevented the zeus board from having a working can regulator,
and one regression triggered by the interrupts IRQ shift of 16 affecting all
boards.
* tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux:
ARM: pxa: fix pxa interrupts handling in DT
ARM: pxa: Fix typo in zeus.c
Linus Torvalds [Sat, 28 Mar 2015 18:25:04 +0000 (11:25 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Fix x86 syscall exit code bug that resulted in spurious non-execution
of TIF-driven user-return worklets, causing big trouble for things
like KVM that rely on user notifiers for correctness of their vcpu
model, causing crashes like double faults"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm/entry: Check for syscall exit work with IRQs disabled
Linus Torvalds [Sat, 28 Mar 2015 17:58:53 +0000 (10:58 -0700)]
Merge branch 'parisc-4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parsic fixes from Helge Deller:
"One patch from Mikulas fixes a bug on parisc by artifically
incrementing the counter in pmd_free when the kernel tries to free
the preallocated pmd.
Other than that we now prevent that syscalls gets added without
incrementing __NR_Linux_syscalls and fix the initial pmd setup code
if a default page size greater than 4k has been selected"
* 'parisc-4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix pmd code to depend on PT_NLEVELS value, not on CONFIG_64BIT
parisc: mm: don't count preallocated pmds
parisc: Add compile-time check when adding new syscalls
Linus Torvalds [Sat, 28 Mar 2015 17:47:27 +0000 (09:47 -0800)]
Merge tag 'arc-4.0-fixes-part-2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
"We found some issues with signal handling taking down the system. I
know its late, but these are important and all marked for stable.
ARC signal handling related fixes uncovered during recent testing of
NPTL tools"
* tag 'arc-4.0-fixes-part-2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: signal handling robustify
ARC: SA_SIGINFO ucontext regs off-by-one
Linus Torvalds [Fri, 27 Mar 2015 21:38:02 +0000 (14:38 -0700)]
Merge tag 'sound-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Three trivial oneliner fixes for HD-audio.
Two are device-specific quirks while one is a generic fix for recent
Realtek codecs"
* tag 'sound-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Add one more node in the EAPD supporting candidate list
ALSA: hda_intel: apply the Seperate stream_tag for Sunrise Point
ALSA: hda - Add dock support for Thinkpad T450s (17aa:5036)
drm/i915: Handle error to get connector state when staging config
The return value of one of the calls to drm_atomic_get_connector_state()
in intel_modeset_stage_output_state() wasn't checked for errors.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Joonas Lahtinen [Fri, 27 Mar 2015 11:09:22 +0000 (13:09 +0200)]
drm/i915: Compare GGTT view structs instead of types
To allow for views where the view type is not defined by the view type only,
like it is in stereo or rotated 90 degree view, change the semantic to require
the whole view structure for comparison when we match a GGTT view.
This allows including parameters like offset to be included in the view which
is useful for eg. partial views.
v3:
- Rely on ggtt_view type being 0 for non-GGTT vma's, which equals to
I915_GGTT_VIEW_NORMAL. (Daniel Vetter)
- Do not use potentially slower comparison when we only want to know if
something is or is not a normal view.
- Rebase on top of rotated view patches. Add rotated view singleton.
- If one view is missing in comparison they're equal only if both are missing.
v4:
- Use comparison helper in obj_to_ggtt_view too. (Tvrtko Ursulin)
- Do WARN_ON if one view is NULL. (Tvrtko Ursulin)
Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Tue, 3 Mar 2015 17:03:47 +0000 (18:03 +0100)]
drm/i915: Add module param to test the load detect code
This is useful for writing igts to make sure we don't break this,
without being forced to own a one of these dinosaurs.
Suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Remove usage of encoder->new_crtc from clock computations
Some of the crtc_compute_clock() still depended on encoder->new_crtc
since they didn't use intel_pipe_will_have_type() and used an open
coded version of that function instead. This patch replaces those with
the appropriate code that checks the atomic state intead.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
[danvet: Separate the if (!connector) continue to facility easier
extraction of a loop iterator for all of these (there's lots more in
i915 and atomic helpers).] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Don't look at staged config crtc when changing DRRS state
The function intel_dp_set_drrs_state() would decide which pipe to
downclock based on the staged config for the given connector. However,
the result of that function is immediate, and it uses input values from
crtc->config, so it should be looking at the current crtc instead.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Convert intel_pipe_will_have_type() to using atomic state
Pass a crtc_state to it and find whether the pipe has an encoder of a
given type by looking at the drm_atomic_state the crtc_state points to.
Until recently i9xx_get_refclk() used to be called indirectly from
vlv_force_pll_on() with a dummy crtc_state. That dummy crtc state is not
converted to be part of a full drm atomic state, so add a WARN in case
someone decides to call that again with a such dummy state. This was
removed in
drm/i915: Update prop, int co-eff and gain threshold for CHV
v2: Warn if there is no connectors for a given crtc. (Daniel)
Replace comment i9xx_get_refclk() with a WARN_ON(). (Ander)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
[danvet: Add commit reference for when i9xx_get_refclk was removed.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: Pass an atomic state to modeset_global_resources() functions
Follow up patches will convert some functions called from there to use
the atomic state, instead of directly accessing the new or current
config. This patch just changes the parameters, but shouldn't have any
functional changes.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Michel Thierry [Tue, 24 Mar 2015 15:46:23 +0000 (15:46 +0000)]
drm/i915: Add dynamic page trace events
Traces for page directories and tables allocation and map.
v2: Removed references to teardown.
v3: bitmap_scnprintf has been deprecated.
v4: Replace bitmap_scnprintf with scnprintf correctly, and get right
range lengths. (Mika)
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This patch continues on the idea from "Track GEN6 page table usage".
From here on, in the steady state, PDEs are all pointing to the scratch
page table (as recommended in the spec). When an object is allocated in
the VA range, the code will determine if we need to allocate a page for
the page table. Similarly when the object is destroyed, we will remove,
and free the page table pointing the PDE back to the scratch page.
Following patches will work to unify the code a bit as we bring in GEN8
support. GEN6 and GEN8 are different enough that I had a hard time to
get to this point with as much common code as I do.
The aliasing PPGTT must pre-allocate all of the page tables. There are a
few reasons for this. Two trivial ones: aliasing ppgtt goes through the
ggtt paths, so it's hard to maintain, we currently do not restore the
default context (assuming the previous force reload is indeed
necessary). Most importantly though, the only way (it seems from
empirical evidence) to invalidate the CS TLBs on non-render ring is to
either use ring sync (which requires actually stopping the rings in
order to synchronize when the sync completes vs. where you are in
execution), or to reload DCLV. Since without full PPGTT we do not ever
reload the DCLV register, there is no good way to achieve this. The
simplest solution is just to not support dynamic page table
creation/destruction in the aliasing PPGTT.
We could always reload DCLV, but this seems like quite a bit of excess
overhead only to save at most 2MB-4k of memory for the aliasing PPGTT
page tables.
v2: Make the page table bitmap declared inside the function (Chris)
Simplify the way scratching address space works.
Move the alloc/teardown tracepoints up a level in the call stack so that
both all implementations get the trace.
v3: Updated trace event to spit out a name
v4: Aliasing ppgtt is now initialized differently (in setup global gtt)
v5: Rebase to latest code. Also removed unnecessary aliasing ppgtt check
for trace, as it is no longer possible after the PPGTT cleanup patch series
of a couple of months ago (Daniel).
v6: Implement changes from code review (Daniel):
- allocate/teardown_va_range calls added.
- Add a scratch page allocation helper (only need the address).
- Move trace events to a new patch.
- Use updated mark_tlbs_dirty.
- Moved pt preallocation for aliasing ppgtt into gen6_ppgtt_init.
v7: teardown_va_range removed (Daniel).
In init, gen6_ppgtt_clear_range call is only needed for aliasing ppgtt.
v8: Rebase after s/page_tables/page_table/.
v9: Remove unnecessary scratch flag in page_table struct, future patches
can just compare against ppgtt->scratch_pt, and alloc_pt_scratch becomes
redundant. Initialize scratch_pt and pt. (Mika)
v10: Clean up aliasing ppgtt init error path and prevent leaking the
ppgtt obj when init fails. (Mika)
Updated commit author. (Daniel)
Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Michel Thierry <michel.thierry@intel.com> (v4+) Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We are already unmapping them in gen6_ppgtt_free. This function became
redundant since commit 06fda602dbca9c59d87db7da71192e4b54c9f5ff
("drm/i915: Create page table allocators").
Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
v2: Return negative error code and renamed commit title. (Dan)
v3: Missing reported-by tag (Daniel)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tommi Rantala [Thu, 26 Mar 2015 19:47:16 +0000 (21:47 +0200)]
drm/i915: fix definition of the DRM_IOCTL_I915_GET_SPRITE_COLORKEY ioctl
Fix definition of the DRM_IOCTL_I915_GET_SPRITE_COLORKEY ioctl, so that it
is different from the DRM_IOCTL_I915_SET_SPRITE_COLORKEY ioctl.
Note that this is just for accuracy, the ioctl implementation itself is totally
unused and already ripped out.
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
[danvet: Add note that this is a dead ioctl.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Fri, 27 Mar 2015 08:08:04 +0000 (09:08 +0100)]
drm/i915: Rip out GET_SPRITE_COLORKEY ioctl
It's completely unused and Tommi noticed that the #define is borked
since forever. I've done a git search in userspace and only found
broken definitions and no users anywhere.
Cc: Tommi Rantala <tt.rantala@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
James Hogan [Fri, 20 Feb 2015 23:45:45 +0000 (23:45 +0000)]
watchdog: imgpdc: Fix default heartbeat
The IMG PDC watchdog driver heartbeat module parameter has no default so
it is initialised to zero. This results in the following warning during
probe:
imgpdc-wdt 2006000.wdt: Initial timeout out of range! setting max timeout
The module parameter description implies that the default value should
be PDC_WDT_DEF_TIMEOUT, which isn't yet used, so initialise it to that.
Also tweak the heartbeat module parameter description for consistency.
The IMG PDC watchdog probe function calls pdc_wdt_stop() prior to
watchdog_set_drvdata(), causing a NULL pointer dereference when
pdc_wdt_stop() retrieves the struct pdc_wdt_dev pointer using
watchdog_get_drvdata() and reads the register base address through it.
Fix by moving the watchdog_set_drvdata() call earlier, to where various
other pdc_wdt->wdt_dev fields are initialised.
Linus Torvalds [Thu, 26 Mar 2015 22:04:05 +0000 (15:04 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm refcounting fixes from Dave Airlie:
"Here is the complete set of i915 bug/warn/refcounting fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Fixup legacy plane->crtc link for initial fb config
drm/i915: Fix atomic state when reusing the firmware fb
drm/i915: Keep ring->active_list and ring->requests_list consistent
drm/i915: Don't try to reference the fb in get_initial_plane_config()
drm: Fixup racy refcounting in plane_force_disable
Linus Torvalds [Thu, 26 Mar 2015 21:53:47 +0000 (14:53 -0700)]
Merge tag 'dm-4.0-fix-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mike Snitzer:
"Fix DM core device cleanup regression -- due to a latent race that was
exposed by the bdi changes that were introduced during the 4.0 merge"
* tag 'dm-4.0-fix-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix add_disk() NULL pointer due to race with free_dev()
Linus Torvalds [Thu, 26 Mar 2015 21:43:42 +0000 (14:43 -0700)]
Merge tag 'linux-kselftest-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan.
* tag 'linux-kselftest-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: Fix build failures when invoked from kselftest target
Dave Airlie [Thu, 26 Mar 2015 21:39:45 +0000 (07:39 +1000)]
Merge tag 'drm-intel-fixes-2015-03-26' of git://anongit.freedesktop.org/drm-intel into drm-fixes
This should cover the final warnings in -rc5 with two more backports
from our development branch (drm-intel-next-queued). They're the ones
from Daniel and Damien, with references to the reports.
This is on top of drm-fixes because of the dependency on the two earlier
fixes not yet in Linus' tree.
There's an additional regression fix from Chris.
* tag 'drm-intel-fixes-2015-03-26' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Fixup legacy plane->crtc link for initial fb config
drm/i915: Fix atomic state when reusing the firmware fb
drm/i915: Keep ring->active_list and ring->requests_list consistent
Linus Torvalds [Thu, 26 Mar 2015 21:11:17 +0000 (14:11 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"A couple of bug fixes for s390.
The ftrace comile fix is quite large for a -rc6 release, but it would
be nice to have it in 4.0"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/smp: reenable smt after resume
s390/mm: limit STACK_RND_MASK for compat tasks
s390/ftrace: fix compile error if CONFIG_KPROBES is disabled
s390/cpum_sf: add diagnostic sampling event only if it is authorized
projects / mirror_ubuntu-eoan-kernel.git / log