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Ville Syrjälä [Thu, 5 Mar 2015 19:19:41 +0000 (21:19 +0200)]
drm/i915: Reduce CHV DDL multiplier to 16/8
Apparently we must yet halve the DDL drain latency from what we're
using currently. This little nugget is not in any spec, but came
down through the grapevine.
This makes the displays a bit more stable. Not quite fully stable but at
least they don't fall over immediately on driver load.
v2: Update high_precision in valleyview_update_sprite_wm() too (Jesse)
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Thu, 18 Dec 2014 10:55:50 +0000 (10:55 +0000)]
drm/i915: Disable the mmio.debug WARN after it fires
If we have a single unclaimed register, we will have lots. A WARN for
each one makes the machine unusable and does not aid debugging. Convert
the i915.mmio_debug option to a counter for how many WARNs to fire
before shutting up. Even when i915.mmio_debug was disabled it would
continue to shout an *ERROR* for every interrupt, without any
information at all for debugging.
The massive verbiage was added in
commit
5978118c39c2f72fd8b39ef9c086723542384809
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Wed Jul 16 17:49:29 2014 -0300
drm/i915: reorganize the unclaimed register detection code
v2: Automatically enable invalid mmio reporting for the *next* invalid
access if mmio_debug is disabled by default. This should give us clearer
debug information without polluting the logs too much.
v3: Compile fixes, rebase.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Update modparam text per the thread.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
kbuild test robot [Thu, 5 Mar 2015 14:03:08 +0000 (22:03 +0800)]
drm/i915: fix simple_return.cocci warnings
drivers/gpu/drm/i915/intel_ringbuffer.c:435:1-4: WARNING: end returns can be simpified
Simplify a trivial if-return sequence. Possibly combine with a
preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci
CC: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Mika Kuoppala [Fri, 27 Feb 2015 16:11:09 +0000 (18:11 +0200)]
drm/i915: Do both mt and gen6 style forcewake reset on ivb probe
commit
05a2fb157e44 ("drm/i915: Consolidate forcewake code")
failed to take into account that we have used to reset both
the gen6 style and the multithreaded style forcewake registers.
This is due to fact that ivb can use either, depending on how the
bios has set up the machine.
Mimic the old semantics before we have determined the correct variety
and reset both before the ecobus probe.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
John Harrison [Thu, 5 Mar 2015 14:03:03 +0000 (14:03 +0000)]
drm/i915: Remove ironlake rc6 support
Apparently, this has never worked reliably and is currently disabled. Also, the
gains are not particularly impressive. Thus rather than try to keep unused code
from decaying and having to update it for other driver changes, it was decided
to simply remove it.
For: VIZ-5115
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Matt Roper [Wed, 4 Mar 2015 18:49:04 +0000 (10:49 -0800)]
drm/i915: Don't clobber plane state on internal disables
We need to disable all sprite planes when disabling the CRTC. We had
been using the top-level atomic 'disable' entrypoint to accomplish this,
which was wrong. Not only can this lead to various locking issues, it
also modifies the actual plane state, making it impossible to restore
the plane properly later. For example, a DPMS off followed by a DPMS on
will result in any sprite planes in use not being restored properly.
The proper solution here is to call directly into our 'commit plane'
hook with a copy of the plane's current state that has 'visible' set to
false. Committing this dummy state will turn off the plane, but will
not touch the actual plane->state pointer, allowing us to properly
restore the plane state later.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Mika Kuoppala [Wed, 4 Mar 2015 12:55:17 +0000 (14:55 +0200)]
drm/i915: Setup all page directories for gen8
If the requested size is less than what the full range
of pdps can address, we end up setting pdps for only the
requested area.
The logical context however needs all pdp entries to be valid.
Prior to commit
06fda602dbca ("drm/i915: Create page table allocators")
we have been writing pdp entries with dma address of zero instead
of valid pdps. This is supposedly bad even if those pdps are not
addressed.
As commit
06fda602dbca ("drm/i915: Create page table allocators")
introduced more dynamic structure for pdps, we ended up oopsing
when we populated the lrc context. Analyzing this oops revealed
the fact that we have not been writing valid pdps with bsw, as
it is doing the ppgtt init with 2GB limit in some cases.
We should do the right thing and setup the non addressable part
pdps/pde/pte to scratch page through the minimal structure by
having just pdp with pde entries pointing to same page with
pte entries pointing to scratch page.
But instead of going through that trouble, setup all the pdps
through individual pd pages and pt entries, even for non
addressable parts. And let the clear range point them to scratch
page. This way we populate the lrc with valid pdps and wait
for dynamic page allocation work to land, and do the heavy lifting
for truncating page table tree according to usage.
The regression of oopsing in init was introduced by
commit
06fda602dbca ("drm/i915: Create page table allocators")
v2: Clear the range for the unused part also (Ville)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89350
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Valtteri Rantala <valtteri.rantala@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Sonika Jindal [Sat, 21 Feb 2015 05:42:13 +0000 (11:12 +0530)]
drm/i915/skl: Program PLL for edp1.4 intermediate frequencies
v2: Making the link_clock half in switch inline with the DPLL_CTRL1_* macros
(Ville)
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Sonika Jindal [Thu, 5 Mar 2015 04:32:30 +0000 (10:02 +0530)]
drm/i915/skl: Add support for edp 1.4 intermediate frequencies
eDp 1.4 supports custom frequencies.
Skylake supports following intermediate frequencies : 3.24 GHz, 2.16 GHz and
4.32 GHz along with usual LBR, HBR and HBR2 frequencies.
Read sink supported frequencies and get common frequencies from sink and
source and use these for link training.
v2: Rebased, removed calculation of min_clock since for edp it is taken as
max_clock (as per comment).
v3: Keeping single array for link rates (Satheesh)
v4: Setting LINK_BW_SET to 0 when setting LINK_RATE_SET (Satheesh)
v5: Some minor nits (Ville)
v6: Keeping separate arrays for source and sink rates (Ville)
v7: Remove redundant setting of DP_LINK_BW_SET to 0 (Ville)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Sonika Jindal [Thu, 5 Mar 2015 04:33:58 +0000 (10:03 +0530)]
drm/i915/skl: Read sink supported rates from edp panel
v2: Using DP_SUPPORTED_LINK_RATES macro for supported_rates array (Satheesh).
v3: Reading dpcd's supported link rates tables based upon edp version in the
same patch.
v4: Move version check under is_edp (Satheesh)
v5: Using le16 for rates, some naming, and removing nested if block (Ville)
v6: Correctly using DP_MAX_SUPPORTED_RATES and removing DP_SUPPORTED_LINK_RATES
(Ville)
v7: Incorrectly removed DP_SUPPORTED_LINK_RATES in v6, re-adding it
v8: Checking return value of intel_dp_dpcd_read_wake() (Ville)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 13 Feb 2015 19:23:46 +0000 (17:23 -0200)]
drm/i915: add frontbuffer tracking to FBC
Kill the blt/render tracking we currently have and use the frontbuffer
tracking infrastructure.
Don't enable things by default yet.
v2: (Rodrigo) Fix small conflict on rebase and typo at subject.
v3: (Paulo) Rebase on RENDER_CS change.
v4: (Paulo) Rebase.
v5: (Paulo) Simplify: flushes don't have origin (Daniel).
Also rebase due to patch order changes.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ramalingam C [Tue, 3 Mar 2015 06:41:46 +0000 (12:11 +0530)]
drm/i915: Fixing mutex deadlock window at eDP DRRS
In invalidate and flush functions of eDP DRRS, if deferred downclock
work starts execution at a time window between acquiring the drrs
mutex and cancellation of the deferred work
(intel_edp_drrs_downclock_work), then deferred work will find
drrs mutex locked and wait for the same.
Meanwhile the function that acquired mutex drrs invalidate/flush will
wait for the completion of the deferred work before releasing the mutex.
Thats a deadlock.
To avoid such deadlock scenario, this change cancels the deferred work
before acquiring the mutex at invalidate and flush functions.
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Vandana Kannan [Tue, 3 Mar 2015 15:23:10 +0000 (20:53 +0530)]
drm/i915: Add debugfs entry for DRRS
Adding a debugfs entry to determine if DRRS is supported or not
V2: [By Ram]: Following details about the active crtc will be filled
in seq-file of the debugfs
1. Encoder output type
2. DRRS Support on this CRTC
3. DRRS current state
4. Current Vrefresh
Format is as follows:
CRTC 1: Output: eDP, DRRS Supported: Yes (Seamless), DRRS_State: DRRS_HIGH_RR, Vrefresh: 60
CRTC 2: Output: HDMI, DRRS Supported : No, VBT DRRS_type: Seamless
CRTC 1: Output: eDP, DRRS Supported: Yes (Seamless), DRRS_State: DRRS_LOW_RR, Vrefresh: 40
CRTC 2: Output: HDMI, DRRS Supported : No, VBT DRRS_type: Seamless
V3: [By Ram]: Readability is improved.
Another error case is covered [Daniel]
V4: [By Ram]: Current status of the Idleness DRRS along with
the Front buffer bits are added to the debugfs. [Rodrigo]
V5: [By Ram]: Rephrased to make it easy to understand.
And format is modified. [Rodrigo]
V6: [By Ram]: Modeset mutex are acquired for each crtc along with
renaming the Idleness detection states [Daniel]
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[danvet: dump full busy_frontbuffer_bits and remove the dubios
computed logical state of DRRS - debugfs is about what is fact,
developers should reach their own conclusion when debugging issues.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Neil Roberts [Wed, 4 Mar 2015 14:41:16 +0000 (14:41 +0000)]
drm/i915: Add I915_PARAM_REVISION
Adds a parameter which can be used with DRM_I915_GETPARAM to query the
GPU revision. The intention is to use this in Mesa to implement the
WaDisableSIMD16On3SrcInstr workaround on Skylake but only for
revision 2.
Signed-off-by: Neil Roberts <neil@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ander Conselvan de Oliveira [Tue, 3 Mar 2015 13:21:57 +0000 (15:21 +0200)]
drm/i915: Improve staged config logging
When logging that full mode switch is necessary, log which connector,
encoder or crtc has caused it, so it is easier to figure out what is
goind on by just looking at the log.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ander Conselvan de Oliveira [Tue, 3 Mar 2015 13:21:56 +0000 (15:21 +0200)]
drm/i915: Add a for_each_intel_connector macro
We have similar macros for crtcs and encoders, and the pattern happens
often enough to justify the macro.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ander Conselvan de Oliveira [Tue, 3 Mar 2015 13:21:55 +0000 (15:21 +0200)]
drm/i915: Set crtc backpointer when duplicating crtc state
In the path were there is no state to duplicate, the allocated crtc
state wouldn't have the crtc backpointer initialized.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Thu, 26 Feb 2015 19:01:52 +0000 (21:01 +0200)]
drm/i915: Reduce CHV DPLL min vco frequency to 4.8 GHz
The current minimum vco frequency leaves us with a gap in our supported
frequencies at 233-243 MHz. Your typical 2560x1440@60 display wants a
pixel clock of 241.5 MHz, which is just withing that gap. Reduce the
allowed vco min frequency to 4.8GHz to reduce the gap to 233-240 MHz,
and thus allow such displays to work.
4.8 GHz is actually the documented (at least in some docs) limit of the
PLL, and we just picked 4.86 GHz originally because that was the lowest
value produced by the PLL spreadsheet, which obviously didn't consider
2560x1440 displays.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 13 Feb 2015 19:23:45 +0000 (17:23 -0200)]
drm/i915: also do frontbuffer tracking on pwrites
We need this for FBC, and possibly for PSR too.
v2: Don't only flush: invalidate too (Daniel).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 13 Feb 2015 19:23:44 +0000 (17:23 -0200)]
drm/i915: pass which operation triggered the frontbuffer tracking
We want to port FBC to the frontbuffer tracking infrastructure, but
for that we need to know what caused the object invalidation so
we can react accordingly: CPU mmaps need manual, GTT mmaps and
flips don't need handling and ring rendering needs nukes.
v2: - s/ORIGIN_RENDER/ORIGIN_CS/ (Daniel, Rodrigo)
- Fix copy/pasted wrong documentation
- Rebase
v3: - Rebase
v4: - Don't pass the operation to flushes (Daniel).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Mon, 2 Mar 2015 15:35:20 +0000 (16:35 +0100)]
Revert "drm/i915: Switch planes from transitional helpers to full atomic helpers"
This reverts commit
3f678c96abb43a977d2ea41aefccdc49e8a3e896.
We've been a bit too optimistic with this one here :(
The trouble is that internally we're still using these plane
update/disable hooks. Which was totally ok pre-atomic since the drm
core did all the book-keeping updating and these just mostly updated
hw state. But with atomic there's lots more going on, and it causes
heaps of trouble with the load detect code.
This one specifically cause a deadlock since both the load detect code
and the nested plane atomic helper functions tried to grab the same
locks. It only blows up because of the evil tricks though we play with
the implicit ww acquire context.
Applying this revert unearths the NULL deref on already freed
framebuffer objects reported as a regression in 4.0 by various people.
Fixing this will be fairly invasive, hence revert even for the
4.1-next queue.
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Damien Lespiau [Mon, 2 Mar 2015 16:19:36 +0000 (16:19 +0000)]
drm/i915/skl: Only use the 800mV+2bB HDMI translation entry
This translation entry was updated after electrical validation by the hw
team. The other entries are removed from existence as they aren't
validated and because the sole use of a certain type of level shifter
for SKL products is anticipated.
v2: Remove all the other entries and force the use of the 800mv+2dB
config (Sonika)
Suggested-by: Sonika Jindal <sonika.jindal@intel.com>
Cc: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Sat, 28 Feb 2015 14:54:09 +0000 (14:54 +0000)]
drm/i915: Make for_each_sprite() take dev_priv as argument
Implicit usage of local variables in macros isn't exactly the greatest
thing in the world, especially when that variable is the drm device and
we want to move towards a broader use of the i915 device structure.
Let's make for_each_sprite() take dev_priv as its first argument then.
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Chris Wilson <chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Sat, 28 Feb 2015 14:54:08 +0000 (14:54 +0000)]
drm/i915: Make for_each_plane() take dev_priv as argument
Implicit usage of local variables in macros isn't exactly the greatest
thing in the world, especially when that variable is the drm device and
we want to move towards a broader use of the i915 device structure.
Let's make for_each_plane() take dev_priv as its first argument then.
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Chris Wilson <chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Mon, 23 Feb 2015 11:03:28 +0000 (12:03 +0100)]
drm/i915: Remove irq-related FIXME in reset code
With the two-step reset counter increments which braket the actual
reset code and the subsequent wake-up we're guaranteeing that all the
lockless waiters _will_ be woken up. And since we unconditionally bail
out of waits with -EAGAIN (or -EIO) in that case there is not risk of
lost interrupt enabling bits when the lockless wait code races against
a gpu reset.
Let's remove this FIXME as resolved then.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Yannick Guerrini [Sat, 28 Feb 2015 16:20:41 +0000 (17:20 +0100)]
drm/i915: Fix trivial typos in comments and warning message
Change 'mutliple' to 'multiple'
Change 'mutlipler' to 'multiplier'
Change 'Haswel' to 'Haswell'
Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Matt Roper [Fri, 27 Feb 2015 18:12:01 +0000 (10:12 -0800)]
drm/i915: Use plane->state->fb in watermark code (v2)
plane->fb is a legacy pointer that not always be up-to-date (or updated
early enough). Make sure the watermark code uses plane->state->fb so
that we're always doing our calculations based on the correct
framebuffers.
This patch was generated by Coccinelle with the following semantic
patch:
@@
struct drm_plane *P;
@@
- P->fb
+ P->state->fb
v2: Rebase
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Matt Roper [Fri, 27 Feb 2015 18:12:00 +0000 (10:12 -0800)]
drm/i915: Kill intel_crtc->cursor_{width, height} (v2)
The cursor size fields in intel_crtc just duplicate the data from
cursor->state.crtc_{w,h} so we don't need them any more. Worse, their
use in the watermark code actually introduces a subtle bug since they
don't get updated to mirror the state values until the plane commit
stage, which is *after* we've already used them to calculate new
watermark values. This happens because we had to move watermark updates
slightly earlier (outside vblank evasion) in commit
commit
32b7eeec4d1e861230b09d437e95d76c86ff4a68
Author: Matt Roper <matthew.d.roper@intel.com>
Date: Wed Dec 24 07:59:06 2014 -0800
drm/i915: Refactor work that can sleep out of commit (v7)
Dropping the intel_crtc fields and just using the state values (which
are properly updated by the time watermark updates happen) should solve
the problem.
Aside from the actual removal of the struct fields (which are formatted
in a way that I couldn't figure out how to match in Coccinelle), the
rest of this patch was generated via the following semantic patch:
// Drop assignment
@@
struct intel_crtc *C;
struct drm_plane_state S;
@@
(
- C->cursor_width = S.crtc_w;
|
- C->cursor_height = S.crtc_h;
)
// Replace usage
@@
struct intel_crtc *C;
expression E;
@@
(
- C->cursor_width
+ C->base.cursor->state->crtc_w
|
- C->cursor_height
+ C->base.cursor->state->crtc_h
|
- to_intel_crtc(E)->cursor_width
+ E->cursor->state->crtc_w
|
- to_intel_crtc(E)->cursor_height
+ E->cursor->state->crtc_h
)
v2: Rebase
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joe Konno <joe.konno@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89346
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dave Airlie [Wed, 11 Mar 2015 02:15:06 +0000 (12:15 +1000)]
Merge tag 'topic/drm-misc-2015-03-10' of git://anongit.freedesktop.org/drm-intel into drm-next
Another pile of misc drm patches all over, mostly polish for atomic. Last
minute rebase was to avoid the broken merge.
* tag 'topic/drm-misc-2015-03-10' of git://anongit.freedesktop.org/drm-intel:
drm: Check in setcrtc if the primary plane supports the fb pixel format
drm: Lighten sysfs connector 'status'
drm/plane-helper: unexport drm_primary_helper_create_plane
drm: Share plane pixel format check code between legacy and atomic
drm: Fix trivial typos in comments
drm/dp: add DPCD definitions from eDP 1.4
drm/dp: add DPCD definitions from DP 1.1 and 1.2a
drm: Fixup racy refcounting in plane_force_disable
drm/i915: Rotation property is now handled in DRM core
drm: Complete moving rotation property to core
drm/dp: add DPCD definitions from eDP 1.2
drm/dp: indentation and ordering cleanups
drm/atomic-helper: Fix kerneldoc for prepare_planes
drm: Remove redundant code in the getencoder ioctl
Laurent Pinchart [Mon, 9 Mar 2015 08:41:07 +0000 (10:41 +0200)]
drm: Check in setcrtc if the primary plane supports the fb pixel format
Drivers implementing the universal planes API report the list of
supported pixel formats for the primary plane. Make sure the fb passed
to the setcrtc ioctl is compatible.
Drivers not implementing the universal planes API will have no format
reported for the primary plane, skip the check in that case.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Fri, 6 Mar 2015 12:36:42 +0000 (12:36 +0000)]
drm: Lighten sysfs connector 'status'
Since the beginning, sysfs/connector/status has done a heavyweight
detection of the current connector status. But no user, such as upowerd
or logind, has ever desired to initiate a probe. Move the probing into a
new attribute so that existing readers get the behaviour they desire.
v2: David Herrmann suggested using "echo detect > /sys/.../status" to
trigger the probing, which is a fine idea. This extends that to also
allow the user to apply the force detection overrides at runtime.
v3: Now with airlied's email address fixed! Requires sysfs_streq()
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 5 Mar 2015 09:32:44 +0000 (10:32 +0100)]
drm/plane-helper: unexport drm_primary_helper_create_plane
We shouldn't tempt driver writers into using this since it uses a
default format list which is likely wrong. And when that's done we can
simplify the code a bit, too.
Noticed while reviewing a patch from Laurent.
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Laurent Pinchart [Thu, 5 Mar 2015 00:25:43 +0000 (02:25 +0200)]
drm: Share plane pixel format check code between legacy and atomic
Both the legacy and atomic helpers need to check whether a plane
supports a given pixel format. The code is currently duplicated, share
it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[danvet: Slightly extend the docbook.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Yannick Guerrini [Wed, 4 Mar 2015 08:30:09 +0000 (09:30 +0100)]
drm: Fix trivial typos in comments
Change 'pixes' to 'pixels'
Change 'enabel' to 'enable'
Change 'enabeling' to 'enabling'
Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 27 Feb 2015 11:11:14 +0000 (13:11 +0200)]
drm/dp: add DPCD definitions from eDP 1.4
Add a number of DPCD definitions from eDP 1.4.
v2: s/DP_ALPM_LOCK_TIMEOUT_ERROR_STATUS/DP_ALPM_LOCK_TIMEOUT_ERROR/
(Sonika)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 27 Feb 2015 11:10:38 +0000 (13:10 +0200)]
drm/dp: add DPCD definitions from DP 1.1 and 1.2a
Add a number of DPCD definitions from DP 1.1 and 1.2a.
v2: drop wrong DP version reference, rename DP training set macros
(Sonika).
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Fri, 27 Feb 2015 11:58:13 +0000 (12:58 +0100)]
drm: Fixup racy refcounting in plane_force_disable
Originally it was impossible to be dropping the last refcount in this
function since there was always one around still from the idr. But in
commit
83f45fc360c8e16a330474860ebda872d1384c8c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Aug 6 09:10:18 2014 +0200
drm: Don't grab an fb reference for the idr
we've switched to weak references, broke that assumption but forgot to
fix it up.
Since we still force-disable planes it's only possible to hit this
when racing multiple rmfb with fbdev restoring or similar evil things.
As long as userspace is nice it's impossible to hit the BUG_ON.
But the BUG_ON would most likely be hit from fbdev code, which usually
invovles the console_lock besides all modeset locks. So very likely
we'd never get the bug reports if this was hit in the wild, hence
better be safe than sorry and backport.
Spotted by Matt Roper while reviewing other patches.
Cc: stable@vger.kernel.org
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Tvrtko Ursulin [Thu, 26 Feb 2015 13:49:18 +0000 (13:49 +0000)]
drm/i915: Rotation property is now handled in DRM core
So no need to have code which never gets called in the driver.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tvrtko Ursulin [Thu, 26 Feb 2015 13:49:17 +0000 (13:49 +0000)]
drm: Complete moving rotation property to core
Commit
1da30627fc511a57c9bd23a02c97f0576379f761 "drm: Add rotation value to
plane state" moved the rotation property to DRM core but only did the set
property part. This does the get property part as well.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Wed, 25 Feb 2015 12:46:53 +0000 (14:46 +0200)]
drm/dp: add DPCD definitions from eDP 1.2
Mostly display control related DPCD addresses.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Wed, 25 Feb 2015 12:46:51 +0000 (14:46 +0200)]
drm/dp: indentation and ordering cleanups
Keep the DPCD macros ordered by address, and make indentation conform to
the rest of the file.
commit
e045d20bef41707dbba676e58624b54f9f39e172
Author: Sonika Jindal <sonika.jindal@intel.com>
Date: Thu Feb 19 13:16:44 2015 +0530
drm: Adding edp1.4 specific dpcd macros
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 26 Feb 2015 13:17:38 +0000 (14:17 +0100)]
drm/atomic-helper: Fix kerneldoc for prepare_planes
Copypaste-fail from cleanup_planes. Reported by Tvrtko.
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Daniel Vetter [Wed, 25 Feb 2015 16:52:05 +0000 (17:52 +0100)]
drm: Remove redundant code in the getencoder ioctl
When enabling atomic state object for this ioctl in
commit
abd69c55dd8f1f71b33b8c6165217f4329db8f25
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Nov 25 23:50:05 2014 +0100
drm: Handle atomic state properly in kms getfoo ioctl
I've forgotten to remove this hunk in one of the later revisions.
drm_encoder_get_crtc already does this.
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Ville Syrjälä [Mon, 9 Mar 2015 19:08:37 +0000 (21:08 +0200)]
drm/i915: Fix struct_mutex deadlock due to merge fumble
commit
a8c6ecb3be7029881f7c95e5e201a629094a4e1a
Merge:
8dd0eb35 9eccca0
Author: Dave Airlie <airlied@redhat.com>
Date: Mon Mar 9 19:58:30 2015 +1000
Merge tag 'v4.0-rc3' into drm-next
managed to pick the wrong code to resolve the conflict and left us with
a mutex_lock(struct_mutex) without the mutex_unlock(struct_mutex) leading
to a deadlock. Fix the problem by recovering the correct code which doesn't
need the lock.
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 9 Mar 2015 09:58:30 +0000 (19:58 +1000)]
Merge tag 'v4.0-rc3' into drm-next
Linux 4.0-rc3 backmerge to fix two i915 conflicts, and get
some mainline bug fixes needed for my testing box
Conflicts:
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/intel_display.c
Dave Airlie [Mon, 9 Mar 2015 09:41:15 +0000 (19:41 +1000)]
Merge tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel into drm-next
- Y tiling support for scanout from Tvrtko&Damien
- Remove more UMS support
- some small prep patches for OLR removal from John Harrison
- first few patches for dynamic pagetable allocation from Ben Widawsky, rebased
by tons of other people
- DRRS support patches (Sonika&Vandana)
- fbc patches from Paulo
- make sure our vblank callbacks aren't called when the pipes are off
- various patches all over
* tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel: (61 commits)
drm/i915: Update DRIVER_DATE to
20150227
drm/i915: Clarify obj->map_and_fenceable
drm/i915/skl: Allow Y (and Yf) frame buffer creation
drm/i915/skl: Update watermarks for Y tiling
drm/i915/skl: Updated watermark programming
drm/i915/skl: Adjust get_plane_config() to support Yb/Yf tiling
drm/i915/skl: Teach pin_and_fence_fb_obj() about Y tiling constraints
drm/i915/skl: Adjust intel_fb_align_height() for Yb/Yf tiling
drm/i915/skl: Allow scanning out Y and Yf fbs
drm/i915/skl: Add new displayable tiling formats
drm/i915: Remove DRIVER_MODESET checks from modeset code
drm/i915: Remove regfile code&data for UMS suspend/resume
drm/i915: Remove DRIVER_MODESET checks from gem code
drm/i915: Remove DRIVER_MODESET checks in the gpu reset code
drm/i915: Remove DRIVER_MODESET checks from suspend/resume code
drm/i915: Remove DRIVER_MODESET checks in load/unload/close code
drm/i915: fix a printk format
drm/i915: Add media rc6 residency file to sysfs
drm/i915: Add missing description to parameter in alloc_pt_range
drm/i915: Removed the read of RP_STATE_CAP from sysfs/debugfs functions
...
Linus Torvalds [Sun, 8 Mar 2015 23:09:09 +0000 (16:09 -0700)]
Linux 4.0-rc3
Al Viro [Sat, 7 Mar 2015 21:08:46 +0000 (21:08 +0000)]
sunrpc: fix braino in ->poll()
POLL_OUT isn't what callers of ->poll() are expecting to see; it's
actually __SI_POLL | 2 and it's a siginfo code, not a poll bitmap
bit...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Cc: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 8 Mar 2015 19:47:18 +0000 (12:47 -0700)]
Merge tag 'usb-4.0-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here's a round of USB fixes for 4.0-rc3.
Nothing major, the usual gadget, xhci and usb-serial fixes and a few
new device ids as well.
All have been in linux-next successfully"
* tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (36 commits)
xhci: Workaround for PME stuck issues in Intel xhci
xhci: fix reporting of 0-sized URBs in control endpoint
usb: ftdi_sio: Add jtag quirk support for Cyber Cortex AV boards
USB: ch341: set tty baud speed according to tty struct
USB: serial: cp210x: Adding Seletek device id's
USB: pl2303: disable break on shutdown
USB: mxuport: fix null deref when used as a console
USB: serial: clean up bus probe error handling
USB: serial: fix port attribute-creation race
USB: serial: fix tty-device error handling at probe
USB: serial: fix potential use-after-free after failed probe
USB: console: add dummy __module_get
USB: ftdi_sio: add PIDs for Actisense USB devices
Revert "USB: serial: make bulk_out_size a lower limit"
cdc-acm: Add support for Denso cradle CU-321
usb-storage: support for more than 8 LUNs
uas: Add US_FL_NO_REPORT_OPCODES for JMicron JMS539
USB: usbfs: don't leak kernel data in siginfo
xhci: Clear the host side toggle manually when endpoint is 'soft reset'
xhci: Allocate correct amount of scratchpad buffers
...
Linus Torvalds [Sun, 8 Mar 2015 19:25:40 +0000 (12:25 -0700)]
Merge tag 'tty-4.0-rc3' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some tty and serial driver fixes for 4.0-rc3.
Along with the atime fix that you know about, here are some other
serial driver bugfixes as well. Most notable is a wait_until_sent
bugfix that was traced back to being around since before 2.6.12 that
Johan has fixed up.
All have been in linux-next successfully"
* tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
TTY: fix tty_wait_until_sent maximum timeout
TTY: fix tty_wait_until_sent on 64-bit machines
USB: serial: fix infinite wait_until_sent timeout
TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation
net: irda: fix wait_until_sent poll timeout
serial: uapi: Declare all userspace-visible io types
serial: core: Fix iotype userspace breakage
serial: sprd: Fix missing spin_unlock in sprd_handle_irq()
console: Fix console name size mismatch
tty: fix up atime/mtime mess, take four
serial: 8250_dw: Fix get_mctrl behaviour
serial:8250:8250_pci: delete unneeded quirk entries
serial:8250:8250_pci: fix redundant entry report for WCH_CH352_2S
Change email address for 8250_pci
serial: 8250: Revert "tty: serial: 8250_core: read only RX if there is something in the FIFO"
Revert "tty/serial: of_serial: add DT alias ID handling"
Linus Torvalds [Sun, 8 Mar 2015 19:20:10 +0000 (12:20 -0700)]
Merge tag 'staging-4.0-rc3' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some IIO and staging driver fixes for 4.0-rc3.
Details are in the shortlog, nothing major, mostly IIO fixes for
reported issues.
All have been in linux-next successfully"
* tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel
staging: comedi: vmk80xx: remove "firmware version" kernel messages
staging: comedi: comedi_isadma: fix "stalled" detect in comedi_isadma_disable_on_sample()
iio: ak8975: fix AK09911 dependencies
iio: common: ssp_sensors: Protect PM-only functions to kill warning
IIO: si7020: Allocate correct amount of memory in devm_iio_device_alloc
Revert "iio:humidity:si7020: fix pointer to i2c client"
iio: light: gp2ap020a00f: Select REGMAP_I2C
iio: light: jsa1212: Select REGMAP_I2C
iio: ad5686: fix optional reference voltage declaration
iio:adc:mcp3422 Fix incorrect scales table
iio: mxs-lradc: fix iio channel map regression
iio: imu: adis16400: Fix sign extension
staging: iio: ad2s1200: Fix sign extension
iio: mxs-lradc: only update the buffer when its conversions have finished
iio: mxs-lradc: make ADC reads not unschedule touchscreen conversions
iio: mxs-lradc: make ADC reads not disable touchscreen interrupts
iio: mxs-lradc: separate touchscreen and buffer virtual channels
iio: imu: inv_mpu6050: Prevent dereferencing NULL
iio: iadc: wait_for_completion_timeout time in jiffies
...
Linus Torvalds [Sun, 8 Mar 2015 19:15:47 +0000 (12:15 -0700)]
Merge tag 'char-misc-4.0-rc3' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are two char/misc fixes for 4.0-rc3.
One is a reported binder driver fix needed due to a change in the mm
core that happened in 4.0-rc1. Another is a mei driver fix that
resolves a reported issue in that driver.
Both have been in linux-next for a while"
* tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: make device disabled on stop unconditionally
android: binder: fix binder mmap failures
Linus Torvalds [Sun, 8 Mar 2015 18:51:04 +0000 (11:51 -0700)]
Merge tag 'cc-4.0-rc2' of git://git./linux/kernel/git/gregkh/char-misc
Pull "code of conflict" from Greg KH:
"This file tries to set the rational basis for our code reviews, gives
some advice on how to conduct them, and provides an excalation channel
for any kernel developers if they so desire it"
[ Let's see how this works ]
* tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Code of Conflict
Linus Torvalds [Sat, 7 Mar 2015 19:56:30 +0000 (11:56 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"A set of updates and bugfixes for the new designware-baytrail driver.
And a documentation bugfix"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: imx: add required clocks property to binding
i2c: designware-baytrail: baytrail_i2c_acquire() might sleep
i2c: designware-baytrail: cross-check lock functions
i2c: designware-baytrail: fix sparse warnings
i2c: designware-baytrail: fix typo in error path
i2c: designware-baytrail: describe magic numbers
Linus Torvalds [Sat, 7 Mar 2015 19:52:03 +0000 (11:52 -0800)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
"This contains small fixes spread across the drivers"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: mmp_pdma: fix warning about slave caps
dmaengine: qcom_bam_dma: fix wrong register offsets
dmaengine: bam-dma: fix a warning about missing capabilities
dmaengine: ioatdma: workaround for incorrect DMACAP register
dmaengine: at_xdmac: fix for chan conf simplification
dmaengine: dw: don't handle interrupt when dmaengine is not used
dma: mmp-tdma: refine dma disable and dma-pos update
dmaengine: shdma: Move DMA stop to (runtime) suspend callbacks
dmaenegine: mmp-pdma: fix irq handler overwrite physical chan issue
Linus Torvalds [Sat, 7 Mar 2015 19:31:17 +0000 (11:31 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
"arm64 and generic kernel/module.c (acked by Rusty) fixes for
CONFIG_DEBUG_SET_MODULE_RONX"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
kernel/module.c: Update debug alignment after symtable generation
arm64: Don't use is_module_addr in setting page attributes
Johan Hovold [Wed, 4 Mar 2015 09:39:07 +0000 (10:39 +0100)]
TTY: fix tty_wait_until_sent maximum timeout
Currently tty_wait_until_sent may take up to twice as long as the
requested timeout while waiting for driver and hardware buffers to
drain.
Fix this by taking the remaining number of jiffies after waiting for
driver buffers to drain into account so that the timeout actually
becomes a maximum timeout as it is documented to be.
Note that this specifically implies tighter timings when closing a port
as a consequence of actually honouring the port closing-wait setting
for drivers relying on tty_wait_until_sent_from_close (e.g. via
tty_port_close_start).
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Wed, 4 Mar 2015 09:39:06 +0000 (10:39 +0100)]
TTY: fix tty_wait_until_sent on 64-bit machines
Fix overflow bug in tty_wait_until_sent on 64-bit machines, where an
infinite timeout (0) would be passed to the underlying tty-driver's
wait_until_sent-operation as a negative timeout (-1), causing it to
return immediately.
This manifests itself for example as tcdrain() returning immediately,
drivers not honouring the drain flags when setting terminal attributes,
or even dropped data on close as a requested infinite closing-wait
timeout would be ignored.
The first symptom was reported by Asier LLANO who noted that tcdrain()
returned prematurely when using the ftdi_sio usb-serial driver.
Fix this by passing 0 rather than MAX_SCHEDULE_TIMEOUT (LONG_MAX) to the
underlying tty driver.
Note that the serial-core wait_until_sent-implementation is not affected
by this bug due to a lucky chance (comparison to an unsigned maximum
timeout), and neither is the cyclades one that had an explicit check for
negative timeouts, but all other tty drivers appear to be affected.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org> # v2.6.12
Reported-by: ZIV-Asier Llano Palacios <asier.llano@cgglobal.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Wed, 4 Mar 2015 09:39:05 +0000 (10:39 +0100)]
USB: serial: fix infinite wait_until_sent timeout
Make sure to handle an infinite timeout (0).
Note that wait_until_sent is currently never called with a 0-timeout
argument due to a bug in tty_wait_until_sent.
Fixes:
dcf010503966 ("USB: serial: add generic wait_until_sent
implementation")
Cc: stable <stable@vger.kernel.org> # v3.10
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Wed, 4 Mar 2015 09:39:04 +0000 (10:39 +0100)]
TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation
Remove incorrect and redundant wait_until_sent operation, which waits
for the driver buffer rather than any hardware buffers to drain,
something which is already taken care of by the tty layer (and
chars_in_buffer).
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Wed, 4 Mar 2015 09:39:03 +0000 (10:39 +0100)]
net: irda: fix wait_until_sent poll timeout
In case an infinite timeout (0) is requested, the irda wait_until_sent
implementation would use a zero poll timeout rather than the default
200ms.
Note that wait_until_sent is currently never called with a 0-timeout
argument due to a bug in tty_wait_until_sent.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org> # v2.6.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Sun, 1 Mar 2015 15:24:28 +0000 (10:24 -0500)]
serial: uapi: Declare all userspace-visible io types
ioctl(TIOCGSERIAL|TIOCSSERIAL) report and can change the port->iotype.
UART drivers use the UPIO_* definitions, but the uapi header defines
parallel values and userspace uses these parallel values for ioctls;
thus the userspace values are definitive.
Define UPIO_* iotypes in terms of the uapi defines, SERIAL_IO_*;
extend the uapi defines to include all values in use by the serial
core.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Sun, 1 Mar 2015 15:18:16 +0000 (10:18 -0500)]
serial: core: Fix iotype userspace breakage
commit
3ffb1a8193bea ("serial: core: Add big-endian iotype")
re-numbered userspace-dependent values; ioctl(TIOCSSERIAL) can
assign the port iotype (which is expected to match the selected
i/o accessors), so iotype values must not be changed.
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Axel Lin [Mon, 16 Feb 2015 14:39:04 +0000 (22:39 +0800)]
serial: sprd: Fix missing spin_unlock in sprd_handle_irq()
Fix return from sprd_handle_irq() with spin_lock held.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Hurley [Sun, 1 Mar 2015 15:11:05 +0000 (10:11 -0500)]
console: Fix console name size mismatch
commit
6ae9200f2cab7 ("enlarge console.name") increased the storage
for the console name to 16 bytes, but not the corresponding
struct console_cmdline::name storage. Console names longer than
8 bytes cause read beyond end-of-string and failure to match
console; I'm not sure if there are other unexpected consequences.
Cc: <stable@vger.kernel.org> # 2.6.22+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jiri Slaby [Fri, 27 Feb 2015 17:40:31 +0000 (18:40 +0100)]
tty: fix up atime/mtime mess, take four
This problem was taken care of three times already in
*
b0de59b5733d18b0d1974a060860a8b5c1b36a2e (TTY: do not update
atime/mtime on read/write),
*
37b7f3c76595e23257f61bd80b223de8658617ee (TTY: fix atime/mtime
regression), and
*
b0b885657b6c8ef63a46bc9299b2a7715d19acde (tty: fix up atime/mtime
mess, take three)
But it still misses one point. As John Paul correctly points out, we
do not care about setting date. If somebody ever changes wall
time backwards (by mistake for example), tty timestamps are never
updated until the original wall time passes.
So check the absolute difference of times and if it large than "8
seconds or so", always update the time. That means we will update
immediatelly when changing time. Ergo, CAP_SYS_TIME can foul the
check, but it was always that way.
Thanks John for serving me this so nicely debugged.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: John Paul Perry <john_paul.perry@alcatel-lucent.com>
Cc: <stable@vger.kernel.org> # all, as b0b885657 was backported
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Desmond Liu [Fri, 27 Feb 2015 00:35:57 +0000 (16:35 -0800)]
serial: 8250_dw: Fix get_mctrl behaviour
Fixed behaviour of get_mctrl() serial driver function as documented in:
https://www.kernel.org/doc/Documentation/serial/driver
Added device-tree properties 'dcd-override', 'dsr-override',
'cts-override', and 'ri-override' specific to the Synopsis 8250
DesignWare UART driver. Allows one to force Data Carrier Detect,
Clear To Send, and Data Set Ready signals to permanently be reported as
active. The Ring indicator can be forced to be reported as inactive.
It is possible that if modem control signalling is enabled on a port
that doesn't have these pins (e.g. - a simple two wire Tx/Rx port), the
driver can hang indefinitely waiting for the state to change. The new
DT properties allow the driver to ignore the state of these pins on
serial ports that don't support them, as recommended in the kernel
documentation.
Reviewed-by: JD (Jiandong) Zheng <jdzheng@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wang YanQing [Fri, 6 Mar 2015 17:08:35 +0000 (01:08 +0800)]
serial:8250:8250_pci: delete unneeded quirk entries
These quirk entries have the same effect as default
quirk entry, so we can just delete them.
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wang YanQing [Fri, 6 Mar 2015 17:13:03 +0000 (01:13 +0800)]
serial:8250:8250_pci: fix redundant entry report for WCH_CH352_2S
Commit
8b5c913f7ee6464849570bacb6bcd9ef0eaf7dce
("serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection")
trigger one redundant entry report message.
This patch fix it.
Reported-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Russell King [Fri, 6 Mar 2015 10:49:21 +0000 (10:49 +0000)]
Change email address for 8250_pci
I'm still receiving reports to my email address, so let's point this
at the linux-serial mailing list instead.
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sebastian Andrzej Siewior [Sun, 15 Feb 2015 17:32:16 +0000 (18:32 +0100)]
serial: 8250: Revert "tty: serial: 8250_core: read only RX if there is something in the FIFO"
This reverts commit
0aa525d11859c1a4d5b78fdc704148e2ae03ae13.
The conditional RX-FIFO read seems to cause spurious interrupts and we
see just:
|serial8250: too much work for irq29
The previous behaviour was "default" for decades and Marvell's
88f6282 SoC
might not be the only that relies on it. Therefore the Omap fix is
reverted for now.
Fixes:
0aa525d11859 ("tty: serial: 8250_core: read only RX if there is
something in the FIFO")
Reported-By: Nicolas Schichan <nschichan@freebox.fr>
Debuged-By: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Baruch Siach [Mon, 16 Feb 2015 06:27:49 +0000 (08:27 +0200)]
Revert "tty/serial: of_serial: add DT alias ID handling"
This reverts commit
6d01bb9dc82a60580f749062a48cb47cd5caca07.
The exact same code was added in commit
3239fd31d4 (serial: of-serial: fetch
line number from DT) a few lined above. Doing this once should be enough.
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sat, 7 Mar 2015 00:54:22 +0000 (16:54 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Radeon, imx, msm, and i915 fixes.
The msm, imx and i915 ones are fairly run of the mill.
Radeon had some DP audio and posting reads for irq fixes, along with a
fix for 32-bit kernels with new cards, we were using unsigned long to
represent GPU side memory space, but since that changed size on 32 vs
64 cards with lots of VRAM failed, so the change has no effect on
x86-64, just moves to using uint64_t instead"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (35 commits)
drm/msm: kexec fixes
drm/msm/mdp5: fix cursor blending
drm/msm/mdp5: fix cursor ROI
drm/msm/atomic: Don't leak atomic commit object when commit fails
drm/msm/mdp5: Avoid flushing registers when CRTC is disabled
drm/msm: update generated headers (add 6th lm.base entry)
drm/msm/mdp5: fixup "drm/msm: fix fallout of atomic dpms changes"
drm/ttm: device address space != CPU address space
drm/mm: Support 4 GiB and larger ranges
drm/i915: gen4: work around hang during hibernation
drm/i915: Check for driver readyness before handling an underrun interrupt
drm/radeon: fix interlaced modes on DCE8
drm/radeon: fix DRM_IOCTL_RADEON_CS oops
drm/radeon: do a posting read in cik_set_irq
drm/radeon: do a posting read in si_set_irq
drm/radeon: do a posting read in evergreen_set_irq
drm/radeon: do a posting read in r600_set_irq
drm/radeon: do a posting read in rs600_set_irq
drm/radeon: do a posting read in r100_set_irq
radeon/audio: fix DP audio on DCE6
...
Matt Porter [Tue, 3 Mar 2015 16:57:08 +0000 (11:57 -0500)]
i2c: imx: add required clocks property to binding
A clock specifier is required for i.MX I2C and is
provided in all DTS implementations. Add this to the
list of required properties in the binding.
Signed-off-by: Matt Porter <mporter@konsulko.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Andy Shevchenko [Tue, 10 Feb 2015 17:06:10 +0000 (19:06 +0200)]
i2c: designware-baytrail: baytrail_i2c_acquire() might sleep
This patch marks baytrail_i2c_acquire() that it might sleep. Also it chages
while-loop to do-while and, though it is matter of taste, gives a chance to
check one more time before report a timeout.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Andy Shevchenko [Tue, 10 Feb 2015 17:06:09 +0000 (19:06 +0200)]
i2c: designware-baytrail: cross-check lock functions
It seems the idea behind the cross-check is to prevent acquire semaphore when
there is no release callback and vice versa. Thus, patch fixes a typo.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Andy Shevchenko [Tue, 10 Feb 2015 17:06:08 +0000 (19:06 +0200)]
i2c: designware-baytrail: fix sparse warnings
There is no need to export functions that are used as the callbacks in the
struct dw_i2c_dev. Otherwise we get the following warnings:
drivers/i2c/busses/i2c-designware-baytrail.c:63:5: warning: symbol 'baytrail_i2c_acquire' was not declared. Should it be static?
drivers/i2c/busses/i2c-designware-baytrail.c:114:6: warning: symbol 'baytrail_i2c_release' was not declared. Should it be static?
While here, do few indentation fixes, remove i2c_dw_eval_lock_support() from
functions exported to the modules and redundant assignment of local sem
variable.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Andy Shevchenko [Tue, 10 Feb 2015 17:06:07 +0000 (19:06 +0200)]
i2c: designware-baytrail: fix typo in error path
It seems we have same message for different return values in get_sem() and
baytrail_i2c_acquire(). I suspect this is just a typo, so this patch fixes it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Andy Shevchenko [Tue, 10 Feb 2015 17:06:06 +0000 (19:06 +0200)]
i2c: designware-baytrail: describe magic numbers
The patch converts hardcoded numerical constants to a named ones.
While here, align the variable name in get_sem() and reset_semaphore().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Linus Torvalds [Fri, 6 Mar 2015 21:52:54 +0000 (13:52 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"Outside of misc fixes, Filipe has a few fsync corners and we're
pulling in one more of Josef's fixes from production use here"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.
Btrfs: fix data loss in the fast fsync path
Btrfs: remove extra run_delayed_refs in update_cowonly_root
Btrfs: incremental send, don't rename a directory too soon
btrfs: fix lost return value due to variable shadowing
Btrfs: do not ignore errors from btrfs_lookup_xattr in do_setxattr
Btrfs: fix off-by-one logic error in btrfs_realloc_node
Btrfs: add missing inode update when punching hole
Btrfs: abort the transaction if we fail to update the free space cache inode
Btrfs: fix fsync race leading to ordered extent memory leaks
Linus Torvalds [Fri, 6 Mar 2015 21:47:56 +0000 (13:47 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/livepatching
Pull livepatching fix from Jiri Kosina:
"Fix an RCU unlock misplacement in live patching infrastructure, from
Peter Zijlstra"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
livepatch: fix RCU usage in klp_find_external_symbol()
Linus Torvalds [Fri, 6 Mar 2015 21:43:33 +0000 (13:43 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal management fixes from Eduardo Valentin:
"Specifics:
- adding Lukasz as maintainer of samsung thermal driver.
- driver fixes: exynos and int430x.
- one fix in the exynos cpufreq driver related to cpu cooling (acked
by cpufreq maintainer).
- fix default sysfs attributes of cooling devices
Note: I am sending this pull on Rui's behalf while he fixes issues in his Linux box"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: Make sysfs attributes of cooling devices default attributes
Thermal/int340x: Fix memleak for aux trip
MAINTAINERS: Add entry for SAMSUNG THERMAL DRIVER
cpufreq: exynos: Use simple approach to asses if cpu cooling can be used
thermal: exynos: Fix wrong control of power down detection mode for Exynos7
Dave Airlie [Fri, 6 Mar 2015 21:40:17 +0000 (07:40 +1000)]
Merge tag 'drm-intel-fixes-2015-03-05' of git://anongit.freedesktop.org/drm-intel into drm-fixes
two fixes, both cc'd stable.
* tag 'drm-intel-fixes-2015-03-05' of git://anongit.freedesktop.org/drm-intel:
drm/i915: gen4: work around hang during hibernation
drm/i915: Check for driver readyness before handling an underrun interrupt
Dave Airlie [Fri, 6 Mar 2015 21:39:37 +0000 (07:39 +1000)]
Merge tag 'v4.0-rc2' into drm-fixes
Linux 4.0-rc2
Merging this manually as the i915 change is in it,
and intel fixes are on top of this
Linus Torvalds [Fri, 6 Mar 2015 18:55:41 +0000 (10:55 -0800)]
Merge tag 'sound-4.0-rc3' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a few more ASoC changes that have been gathered since rc1,
but it's still fairly calm over all. The only largish LOC is found in
atmel driver, and it's just a removal of broken non-DT stuff. The
rest are all small driver-specific fixes, nothing to worry much"
* tag 'sound-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits)
ALSA: hda - One more Dell macine needs DELL1_MIC_NO_PRESENCE quirk
ALSA: opl3: small array underflow
ALSA: line6: Clamp values correctly
ALSA: msnd: add some missing curly braces
ASoC: omap-pcm: Correct dma mask
ASoC: simple-card: Add a NULL pointer check in asoc_simple_card_dai_link_of
ASoC: sam9g20_wm8731: drop machine_is_xxx
ALSA: dice: fix wrong offsets for Dice interface
ALSA: oxfw: fix a condition and return code in start_stream()
ASoC: OMAP: mcbsp: Fix CLKX and CLKR pinmux when used as inputs
ASoC: rt5677: Correct the routing paths of that after IF1/2 DACx Mux
ASoC: sta32x: fix register range in regmap.
ASoC: rt5670: Set RT5670_IRQ_CTRL1 non volatile
ASoC: Intel: reset the DSP while suspending
ASoC: Intel: save and restore the CSR register
ASoC: Intel: update MMX ID to 3
ASoC: max98357a: Add missing header files
ASoC: cirrus: tlv320aic23 needs I2C
ASoC: Samsung: add missing I2C/SPI dependencies
ASoC: rt5670: Fix the speaker mono output issue
...
Linus Torvalds [Fri, 6 Mar 2015 18:36:09 +0000 (10:36 -0800)]
Merge tag 'pm+acpi-4.0-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These are fixes for recent regressions (ACPI resources management,
suspend-to-idle), stable-candidate fixes (ACPI backlight), fixes
related to the wakeup IRQ management changes made in v3.18, other
fixes (suspend-to-idle, cpufreq ppc driver) and a couple of cleanups
(suspend-to-idle, generic power domains, ACPI backlight).
Specifics:
- Fix ACPI resources management problems introduced by the recent
rework of the code in question (Jiang Liu) and a build issue
introduced by those changes (Joachim Nilsson).
- Fix a recent suspend-to-idle regression on systems where entering
idle states causes local timers to stop, prevent suspend-to-idle
from crashing in restricted configurations (no cpuidle driver,
cpuidle disabled etc.) and clean up the idle loop somewhat while at
it (Rafael J Wysocki).
- Fix build problem in the cpufreq ppc driver (Geert Uytterhoeven).
- Allow the ACPI backlight driver module to be loaded if ACPI is
disabled which helps the i915 driver in those configurations
(stable-candidate) and change the code to help debug unusual use
cases (Chris Wilson).
- Wakeup IRQ management changes in v3.18 caused some drivers on the
at91 platform to trigger a warning from the IRQ core related to an
unexpected combination of interrupt action handler flags. However,
on at91 a timer IRQ is shared with some other devices (including
system wakeup ones) and that leads to the unusual combination of
flags in question.
To make it possible to avoid the warning introduce a new interrupt
action handler flag (which can be used by drivers to indicate the
special case to the core) and rework the problematic at91 drivers
to use it and work as expected during system suspend/resume. From
Boris Brezillon, Rafael J Wysocki and Mark Rutland.
- Clean up the generic power domains subsystem's debugfs interface
(Kevin Hilman)"
* tag 'pm+acpi-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
genirq / PM: describe IRQF_COND_SUSPEND
tty: serial: atmel: rework interrupt and wakeup handling
watchdog: at91sam9: request the irq with IRQF_NO_SUSPEND
cpuidle / sleep: Use broadcast timer for states that stop local timer
clk: at91: implement suspend/resume for the PMC irqchip
rtc: at91rm9200: rework wakeup and interrupt handling
rtc: at91sam9: rework wakeup and interrupt handling
PM / wakeup: export pm_system_wakeup symbol
genirq / PM: Add flag for shared NO_SUSPEND interrupt lines
ACPI / video: Propagate the error code for acpi_video_register
ACPI / video: Load the module even if ACPI is disabled
PM / Domains: cleanup: rename gpd -> genpd in debugfs interface
cpufreq: ppc: Add missing #include <asm/smp.h>
x86/PCI/ACPI: Relax ACPI resource descriptor checks to work around BIOS bugs
x86/PCI/ACPI: Ignore resources consumed by host bridge itself
cpuidle: Clean up fallback handling in cpuidle_idle_call()
cpuidle / sleep: Do sanity checks in cpuidle_enter_freeze() too
idle / sleep: Avoid excessive disabling and enabling interrupts
PCI: versatile: Update for list_for_each_entry() API change
genirq / PM: better describe IRQF_NO_SUSPEND semantics
Linus Torvalds [Fri, 6 Mar 2015 18:31:38 +0000 (10:31 -0800)]
Merge tag 'locks-v4.0-3' of git://git.samba.org/jlayton/linux
Pull file locking fix from Jeff Layton:
"Just a single patch to fix a memory leak that Daniel Wagner discovered
while doing some testing with leases"
* tag 'locks-v4.0-3' of git://git.samba.org/jlayton/linux:
locks: fix fasync_struct memory leak in lease upgrade/downgrade handling
Linus Torvalds [Fri, 6 Mar 2015 18:09:57 +0000 (10:09 -0800)]
Merge tag 'nfs-for-4.0-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
- Fix a regression in the NFSv4 open state recovery code
- Fix a regression in the NFSv4 close code
- Fix regressions and side-effects of the loop-back mounted NFS fixes
in 3.18, that cause the NFS read() syscall to return EBUSY.
- Fix regressions around the readdirplus code and how it interacts
with the VFS lazy unmount changes that went into v3.18.
- Fix issues with out-of-order RPC call replies replacing updated
attributes with stale ones (particularly after a truncate()).
- Fix an underflow checking issue with RPC/RDMA credits
- Fix a number of issues with the NFSv4 delegation return/free code.
- Fix issues around stale NFSv4.1 leases when doing a mount"
* tag 'nfs-for-4.0-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
NFSv4.1: Clear the old state by our client id before establishing a new lease
NFSv4: Fix a race in NFSv4.1 server trunking discovery
NFS: Don't write enable new pages while an invalidation is proceeding
NFS: Fix a regression in the read() syscall
NFSv4: Ensure we skip delegations that are already being returned
NFSv4: Pin the superblock while we're returning the delegation
NFSv4: Ensure we honour NFS_DELEGATION_RETURNING in nfs_inode_set_delegation()
NFSv4: Ensure that we don't reap a delegation that is being returned
NFS: Fix stateid used for NFS v4 closes
NFSv4: Don't call put_rpccred() under the rcu_read_lock()
NFS: Don't require a filehandle to refresh the inode in nfs_prime_dcache()
NFSv3: Use the readdir fileid as the mounted-on-fileid
NFS: Don't invalidate a submounted dentry in nfs_prime_dcache()
NFSv4: Set a barrier in the update_changeattr() helper
NFS: Fix nfs_post_op_update_inode() to set an attribute barrier
NFS: Remove size hack in nfs_inode_attrs_need_update()
NFSv4: Add attribute update barriers to delegreturn and pNFS layoutcommit
NFS: Add attribute update barriers to NFS writebacks
NFS: Set an attribute barrier on all updates
NFS: Add attribute update barriers to nfs_setattr_update_inode()
...
Mathias Nyman [Fri, 6 Mar 2015 15:23:19 +0000 (17:23 +0200)]
xhci: Workaround for PME stuck issues in Intel xhci
The xhci in Intel Sunrisepoint and Cherryview platforms need a driver
workaround for a Stuck PME that might either block PME events in suspend,
or create spurious PME events preventing runtime suspend.
Workaround is to clear a internal PME flag, BIT(28) in a vendor specific
PMCTRL register at offset 0x80a4, in both suspend resume callbacks
Without this, xhci connected usb devices might never be able to wake up the
system from suspend, or prevent device from going to suspend (xhci d3)
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Aleksander Morgado [Fri, 6 Mar 2015 15:14:21 +0000 (17:14 +0200)]
xhci: fix reporting of 0-sized URBs in control endpoint
When a control transfer has a short data stage, the xHCI controller generates
two transfer events: a COMP_SHORT_TX event that specifies the untransferred
amount, and a COMP_SUCCESS event. But when the data stage is not short, only the
COMP_SUCCESS event occurs. Therefore, xhci-hcd must set urb->actual_length to
urb->transfer_buffer_length while processing the COMP_SUCCESS event, unless
urb->actual_length was set already by a previous COMP_SHORT_TX event.
The driver checks this by seeing whether urb->actual_length == 0, but this alone
is the wrong test, as it is entirely possible for a short transfer to have an
urb->actual_length = 0.
This patch changes the xhci driver to rely on a new td->urb_length_set flag,
which is set to true when a COMP_SHORT_TX event is received and the URB length
updated at that stage.
This fixes a bug which affected the HSO plugin, which relies on URBs with
urb->actual_length == 0 to halt re-submitting the RX URB in the control
endpoint.
Cc: <stable@vger.kernel.org>
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Takashi Iwai [Fri, 6 Mar 2015 13:24:21 +0000 (14:24 +0100)]
Merge tag 'asoc-fix-v4.0-rc2' of git://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.0
A few driver specific fixes here, none of them earth shattering in
themselves, that have accumliated since the opening of the merge window.
Hui Wang [Fri, 6 Mar 2015 06:03:57 +0000 (14:03 +0800)]
ALSA: hda - One more Dell macine needs DELL1_MIC_NO_PRESENCE quirk
Cc: <stable@vger.kernel.org>
BugLink: https://bugs.launchpad.net/bugs/1428947
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dan Carpenter [Thu, 5 Mar 2015 17:49:06 +0000 (20:49 +0300)]
ALSA: opl3: small array underflow
There is a missing lower bound check on "pitchbend" so it means we can
read up to 6 elements before the start of the opl3_note_table[] array.
Thanks to Clemens Ladisch for his help with this patch.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Laura Abbott [Wed, 25 Feb 2015 22:14:57 +0000 (14:14 -0800)]
kernel/module.c: Update debug alignment after symtable generation
When CONFIG_DEBUG_SET_MODULE_RONX is enabled, the sizes of
module sections are aligned up so appropriate permissions can
be applied. Adjusting for the symbol table may cause them to
become unaligned. Make sure to re-align the sizes afterward.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Laura Abbott [Wed, 25 Feb 2015 22:14:55 +0000 (14:14 -0800)]
arm64: Don't use is_module_addr in setting page attributes
The set_memory_* functions currently only support module
addresses. The addresses are validated using is_module_addr.
That function is special though and relies on internal state
in the module subsystem to work properly. At the time of
module initialization and calling set_memory_*, it's too early
for is_module_addr to work properly so it always returns
false. Rather than be subject to the whims of the module state,
just bounds check against the module virtual address range.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Quentin Casasnovas [Tue, 3 Mar 2015 15:31:38 +0000 (16:31 +0100)]
Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.
Improper arithmetics when calculting the address of the extended ref could
lead to an out of bounds memory read and kernel panic.
Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
cc: stable@vger.kernel.org # v3.7+
Signed-off-by: Chris Mason <clm@fb.com>
Filipe Manana [Sun, 1 Mar 2015 20:36:00 +0000 (20:36 +0000)]
Btrfs: fix data loss in the fast fsync path
When using the fast file fsync code path we can miss the fact that new
writes happened since the last file fsync and therefore return without
waiting for the IO to finish and write the new extents to the fsync log.
Here's an example scenario where the fsync will miss the fact that new
file data exists that wasn't yet durably persisted:
1. fs_info->last_trans_committed == N - 1 and current transaction is
transaction N (fs_info->generation == N);
2. do a buffered write;
3. fsync our inode, this clears our inode's full sync flag, starts
an ordered extent and waits for it to complete - when it completes
at btrfs_finish_ordered_io(), the inode's last_trans is set to the
value N (via btrfs_update_inode_fallback -> btrfs_update_inode ->
btrfs_set_inode_last_trans);
4. transaction N is committed, so fs_info->last_trans_committed is now
set to the value N and fs_info->generation remains with the value N;
5. do another buffered write, when this happens btrfs_file_write_iter
sets our inode's last_trans to the value N + 1 (that is
fs_info->generation + 1 == N + 1);
6. transaction N + 1 is started and fs_info->generation now has the
value N + 1;
7. transaction N + 1 is committed, so fs_info->last_trans_committed
is set to the value N + 1;
8. fsync our inode - because it doesn't have the full sync flag set,
we only start the ordered extent, we don't wait for it to complete
(only in a later phase) therefore its last_trans field has the
value N + 1 set previously by btrfs_file_write_iter(), and so we
have:
inode->last_trans <= fs_info->last_trans_committed
(N + 1) (N + 1)
Which made us not log the last buffered write and exit the fsync
handler immediately, returning success (0) to user space and resulting
in data loss after a crash.
This can actually be triggered deterministically and the following excerpt
from a testcase I made for xfstests triggers the issue. It moves a dummy
file across directories and then fsyncs the old parent directory - this
is just to trigger a transaction commit, so moving files around isn't
directly related to the issue but it was chosen because running 'sync' for
example does more than just committing the current transaction, as it
flushes/waits for all file data to be persisted. The issue can also happen
at random periods, since the transaction kthread periodicaly commits the
current transaction (about every 30 seconds by default).
The body of the test is:
_scratch_mkfs >> $seqres.full 2>&1
_init_flakey
_mount_flakey
# Create our main test file 'foo', the one we check for data loss.
# By doing an fsync against our file, it makes btrfs clear the 'needs_full_sync'
# bit from its flags (btrfs inode specific flags).
$XFS_IO_PROG -f -c "pwrite -S 0xaa 0 8K" \
-c "fsync" $SCRATCH_MNT/foo | _filter_xfs_io
# Now create one other file and 2 directories. We will move this second file
# from one directory to the other later because it forces btrfs to commit its
# currently open transaction if we fsync the old parent directory. This is
# necessary to trigger the data loss bug that affected btrfs.
mkdir $SCRATCH_MNT/testdir_1
touch $SCRATCH_MNT/testdir_1/bar
mkdir $SCRATCH_MNT/testdir_2
# Make sure everything is durably persisted.
sync
# Write more 8Kb of data to our file.
$XFS_IO_PROG -c "pwrite -S 0xbb 8K 8K" $SCRATCH_MNT/foo | _filter_xfs_io
# Move our 'bar' file into a new directory.
mv $SCRATCH_MNT/testdir_1/bar $SCRATCH_MNT/testdir_2/bar
# Fsync our first directory. Because it had a file moved into some other
# directory, this made btrfs commit the currently open transaction. This is
# a condition necessary to trigger the data loss bug.
$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/testdir_1
# Now fsync our main test file. If the fsync succeeds, we expect the 8Kb of
# data we wrote previously to be persisted and available if a crash happens.
# This did not happen with btrfs, because of the transaction commit that
# happened when we fsynced the parent directory.
$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foo
# Simulate a crash/power loss.
_load_flakey_table $FLAKEY_DROP_WRITES
_unmount_flakey
_load_flakey_table $FLAKEY_ALLOW_WRITES
_mount_flakey
# Now check that all data we wrote before are available.
echo "File content after log replay:"
od -t x1 $SCRATCH_MNT/foo
status=0
exit
The expected golden output for the test, which is what we get with this
fix applied (or when running against ext3/4 and xfs), is:
wrote 8192/8192 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 8192/8192 bytes at offset 8192
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
File content after log replay:
0000000 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
0020000 bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb
*
0040000
Without this fix applied, the output shows the test file does not have
the second 8Kb extent that we successfully fsynced:
wrote 8192/8192 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 8192/8192 bytes at offset 8192
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
File content after log replay:
0000000 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
*
0020000
So fix this by skipping the fsync only if we're doing a full sync and
if the inode's last_trans is <= fs_info->last_trans_committed, or if
the inode is already in the log. Also remove setting the inode's
last_trans in btrfs_file_write_iter since it's useless/unreliable.
Also because btrfs_file_write_iter no longer sets inode->last_trans to
fs_info->generation + 1, don't set last_trans to 0 if we bail out and don't
bail out if last_trans is 0, otherwise something as simple as the following
example wouldn't log the second write on the last fsync:
1. write to file
2. fsync file
3. fsync file
|--> btrfs_inode_in_log() returns true and it set last_trans to 0
4. write to file
|--> btrfs_file_write_iter() no longers sets last_trans, so it
remained with a value of 0
5. fsync
|--> inode->last_trans == 0, so it bails out without logging the
second write
A test case for xfstests will be sent soon.
CC: <stable@vger.kernel.org>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Josef Bacik [Mon, 2 Mar 2015 17:51:02 +0000 (12:51 -0500)]
Btrfs: remove extra run_delayed_refs in update_cowonly_root
This got added with my dirty_bgs patch, it's not needed. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Rafael J. Wysocki [Fri, 6 Mar 2015 00:29:31 +0000 (01:29 +0100)]
Merge branches 'pm-domains' and 'pm-cpufreq'
* pm-domains:
PM / Domains: cleanup: rename gpd -> genpd in debugfs interface
* pm-cpufreq:
cpufreq: ppc: Add missing #include <asm/smp.h>
Rafael J. Wysocki [Fri, 6 Mar 2015 00:29:16 +0000 (01:29 +0100)]
Merge branch 'acpi-video'
* acpi-video:
ACPI / video: Propagate the error code for acpi_video_register
ACPI / video: Load the module even if ACPI is disabled