Paulo Zanoni [Fri, 7 Mar 2014 23:08:15 +0000 (20:08 -0300)]
drm/i915: move pc8.irqs_disabled to pm.irqs_disabled
When other platforms add runtime PM support they will also need to
disable interrupts, so move the variable to the runtime PM struct.
Also notice that the longer-term goal is to completely kill the
regsave struct, and I even have patches for that.
v2: - Rebase.
v3: - Rebase.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:14 +0000 (20:08 -0300)]
drm/i915: remove dev_priv->pc8.enabled
It was just being used on debugfs and on a WARN inside
hsw_set_power_well. But now that we PC8 is part of runtime PM and we
get/put runtime PM when we get/put any power domain, we shouldn't need
the WARN anymore.
v2: - Rebase.
v3: - Rebase.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:13 +0000 (20:08 -0300)]
drm/i915: don't get/put PC8 when getting/putting power wells
Because we already get/put runtime PM every time we get/put any power
domain, and now PC8 and runtime PM are the same thing.
With this, we can also now kill the hsw_{en,dis}able_package_c8
functions.
v2: - Rebase.
v3: - Rebase.
v4: - Rebase.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:12 +0000 (20:08 -0300)]
drm/i915: make intel_aux_display_runtime_get get runtime PM, not PC8
Because we merged the PC8 and runtime PM features, so calling
intel_runtime_pm_get now has the same meaning, and we plan to just
remove hsw_disable_package_c8 for this exact reason.
My first patch tried to completely kill
intel_aux_display_runtime_get/put, because I was assuming that whoever
needed more than just runtime PM would have to get the appropriate
power domain instead of that, but it seems some people still want the
intel_aux_display_runtime_get abstraction, so keep it until someone
else tries to replace it with the more-standard power domain calls.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:11 +0000 (20:08 -0300)]
drm/i915: don't get/put PC8 reference on freeze/thaw
We already get runtime PM references, and PC8 is now part of runtime
PM, so this is enough.
v2: - Rebase.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:10 +0000 (20:08 -0300)]
drm/i915: remove an indirection level on PC8 functions
After the latest changes, the indirection is useless.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:09 +0000 (20:08 -0300)]
drm/i915: kill pc8.disable_count
Since after the latest patches it's only being used to prevent
getting/putting the runtime PM refcount.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:08 +0000 (20:08 -0300)]
drm/i915: get runtime PM references when the GPU is idle/busy
... instead of PC8 references. Now that both are the same thing and we
are killing PC8, just get the runtime PM reference.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:07 +0000 (20:08 -0300)]
drm/i915: remove dev_priv->pc8.requirements_met
The requirements_met variable was used to track two things: enabled
CRTCs and the power well. After the latest chagnes, we get a runtime
PM reference whenever we get any of the power domains, and we get
power domains when we enable CRTCs or the power well, so we should
already be covered, not needing this specific tracking.
v2: - Rebase.
v3: - Rebase.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:06 +0000 (20:08 -0300)]
drm/i915: get/put runtime PM when we get/put a power domain
Any power domain will require the HW to be in PCI D0 state, so just do
the simple thing.
Dear maintainer: since intel_display_power_put() and
intel_display_power_get() are almost identical, git-am has failed
apply the patch on my local machine once: it added both chunks to
put(), instead of one chunk to get() and another to put(). When you
apply this patch to your tree, please check if it is correct.
v2: - Add the warning above.
v3: - Rebase.
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:05 +0000 (20:08 -0300)]
drm/i915: make PC8 be part of runtime PM suspend/resume
Currently, when our driver becomes idle for i915.pc8_timeout (default:
5s) we enable PC8, so we save some power, but not everything we can.
Then, while PC8 is enabled, if we stay idle for more
autosuspend_delay_ms (default: 10s) we'll enter runtime PM and put the
graphics device in D3 state, saving even more power. The two features
are separate things with increasing levels of power savings, but if we
disable PC8 we'll never get into D3.
While from the modularity point of view it would be nice to keep these
features as separate, we have reasons to merge them:
- We are not aware of anybody wanting a "PC8 without D3" environment.
- If we keep both features as separate, we'll have to to test both
PC8 and PC8+D3 code paths. We're already having a major pain to
make QA do automated testing of just one thing, testing both paths
will cost even more.
- Only Haswell+ supports PC8, so if we want to add runtime PM support
to, for example, IVB, we'll have to copy some code from the PC8
feature to runtime PM, so merging both features as a single thing
will make it easier for enabling runtime PM on other platforms.
This patch only does the very basic steps required to have PC8 and
runtime PM merged on a single feature: the next patches will take care
of cleaning up everything.
v2: - Rebase.
v3: - Rebase.
- Fully remove the deprecated i915 params since Daniel doesn't
consider them as part of the ABI.
v4: - Rebase.
- Fix typo in the commit message.
v5: - Rebase, again.
- Add a huge comment explaining the different forcewake usage
(Chris, Daniel).
- Use open-coded forcewake functions (Daniel).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:08:04 +0000 (20:08 -0300)]
drm/i915: extract __hsw_do_{en, dis}able_package_c8
When we merge PC8 and runtime PM, these new functions are going to be
called by the runtime suspend/resume functions, and their callers are
going to be removed.
v2: - Rebase
Reviewed-by: Imre Deak <imre.deak@intel.com> (v1)
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Wed, 19 Mar 2014 14:54:37 +0000 (15:54 +0100)]
Merge branch 'topic/dp-aux-rework' into drm-intel-next-queued
Conflicts:
drivers/gpu/drm/i915/intel_dp.c
A bit a mess with reverts which differe in details between -fixes and
-next and some other unrelated shuffling.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Matt Roper [Wed, 19 Mar 2014 00:22:55 +0000 (17:22 -0700)]
drm/i915: Rename similar plane functions to avoid confusion
The name 'update_plane' was used both for the primary plane functions in
intel_display.c and the sprite/overlay functions in intel_sprite.c.
Rename the primary plane functions to 'update_primary_plane' to avoid
confusion.
On a similar note, intel_display.c already had a function called
intel_disable_primary_plane() that programs the hardware to disable a
pipe's primary plane. When we hook up primary planes through the DRM
plane interface, one of the natural handler names will be
intel_primary_plane_disable(), which is very similar. To avoid
confusion, rename the existing intel_disable_primary_plane() to
intel_disable_primary_hw_plane() to make the two names a little more
distinct.
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
[danvet: Fix up conflicts.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jesse Barnes [Mon, 3 Mar 2014 22:27:57 +0000 (14:27 -0800)]
drm/i915/vlv: no MCHBAR on VLV
So don't try to allocate and program it, we're only fooling ourselves.
Reported-by: "Chang, Junxiao" <junxiao.chang@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Junxiao Chang <junxiao.chang@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ben Widawsky [Tue, 18 Mar 2014 23:09:37 +0000 (16:09 -0700)]
drm/i915/bdw: Restore PPAT on thaw
Apparently it is wiped out from under us, and we get some really fun
caching artifacts upon resume (it seems to be WB for all types by
default).
Reported-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: James Ausmus <james.ausmus@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76113
Tested-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Steven Rostedt [Tue, 18 Mar 2014 15:27:37 +0000 (11:27 -0400)]
drm/i915: Do not dereference pointers from ring buffer in evict event
The TP_printk() should never dereference any pointers, because the ring
buffer can be read at some unknown time in the future. If a device no
longer exists, it can cause a kernel oops. This also makes this
event useless when saving the ring buffer in userspaces tools such as
perf and trace-cmd.
The i915_gem_evict_vm dereferences the vm pointer which may also not
exist when the ring buffer is read sometime in the future.
Link: http://lkml.kernel.org/r/1395095198-20034-3-git-send-email-artagnon@gmail.com
Reported-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: stable@vger.kernel.org # 3.13+
Fixes: bcccff847d1f "drm/i915: trace vm eviction instead of everything"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
[danvet: Try to make it actually compile]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Tue, 18 Mar 2014 17:43:08 +0000 (17:43 +0000)]
drm/i915: Use the correct format string modifier for ptrdiff_t
When compiling on 32bits, I have the following warning:
drivers/gpu/drm/i915/i915_cmd_parser.c:405:4: warning: format ‘%ld’
expects argument of type ‘long int’, but argument 7 has type ‘int’
[-Wformat=]
DRM_DEBUG_DRIVER("CMD: Command length exceeds batch length: 0x%08X
length=%d batchlen=%ld\n",
The ptrdiff_t type has its own modifier: 't'.
Cc: Brad Volkin <bradley.d.volkin@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Brad Volkin <bradley.d.volkin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Mon, 17 Mar 2014 18:01:16 +0000 (18:01 +0000)]
drm/i915: Rename intel_setup_wm_latency() to ilk_setup_wm_latency()
This function is only used on ILK+, so rename it accordingly.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Mon, 17 Mar 2014 17:59:48 +0000 (17:59 +0000)]
drm/i915: Remove spurious '()' in WARN macros
No need of any here.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Mon, 17 Mar 2014 14:43:36 +0000 (16:43 +0200)]
drm/i915: finish off reverting eDP VDD changes
This is a small follow-up fix to the series of eDP VDD back and forth
we've had recently. This is effectively a combined revert of three
commits:
commit
2c2894f698fffd8ff53e1e1d3834f9e1035b1f39
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Mar 7 20:05:20 2014 -0300
drm/i915: properly disable the VDD when disabling the panel
commit
b3064154dfd37deb386b1e459c54e1ca2460b3d5
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date: Tue Mar 4 00:42:44 2014 +0100
drm/i915: Don't just say it, actually force edp vdd
commit
dff392dbd258381a6c3164f38420593f2d291e3b
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Dec 6 17:32:41 2013 -0200
drm/i915: don't touch the VDD when disabling the panel
which shows that we're pretty close back to where we started
already. The first two were basically reverting the last, but missing
the WARN. Add that back. We also OCD the intel_ prefix back to
intel_edp_panel_vdd_on() which was lost somewhere in between. The circle
closes.
For future reference, "drm/i915: don't touch the VDD when disabling the
panel" failed to take into account
commit
6cb49835da0426f69a2931bc2a0a8156344b0e41
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun May 20 17:14:50 2012 +0200
drm/i915: enable vdd when switching off the eDP panel
and
commit
35a38556d900b9cb5dfa2529c93944b847f8a8a4
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Aug 12 22:17:14 2012 +0200
drm/i915: reorder edp disabling to fix ivb MacBook Air
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Sat, 15 Mar 2014 19:20:29 +0000 (20:20 +0100)]
drm/i915: catch forcewake reference underruns
Without this the new drv_suspend/forcewake subtest I've created
doesn't result in immediately visible failures.
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ben Widawsky [Sat, 15 Mar 2014 06:01:58 +0000 (23:01 -0700)]
drm/i915: Actually capture PP_DIR_BASE on error
I have been seeing this for a long time, but ignored it because it's
typically not terribly important. Recently, I really needed this info,
and it was garbage. Proof that I should have fixed it sooner. Originally
wrong from:
commit
6c7a01ec3743a5a6ce9e53a69d7a6c2d8c715eb1
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Thu Jan 30 00:19:40 2014 -0800
drm/i915: Capture PPGTT info on error capture
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 7 Mar 2014 23:05:20 +0000 (20:05 -0300)]
drm/i915: properly disable the VDD when disabling the panel
Commit
b3064154dfd37deb386b1e459c54e1ca2460b3d5 tried to revert commit
dff392dbd258381a6c3164f38420593f2d291e3b, but wasn't complete, which
resulted in regressions on Haswell. So this commit should fix
b3064154dfd37deb386b1e459c54e1ca2460b3d5 by undoing what it did and
providing an actual complete revert of
dff392dbd258381a6c3164f38420593f2d291e3b.
Fixes regression introduced by:
commit
b3064154dfd37deb386b1e459c54e1ca2460b3d5
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date: Tue Mar 4 00:42:44 2014 +0100
drm/i915: Don't just say it, actually force edp vdd
Testcase: igt/pm_pc8
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Mika Kuoppala [Fri, 14 Mar 2014 14:22:10 +0000 (16:22 +0200)]
drm/i915: Switch to fake context on older gens
We used to have per file descriptor hang stats for the
i915_get_reset_stats_ioctl() and for default context banning.
commit
0eea67eb26000657079b7fc41079097942339452
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Fri Dec 6 14:11:19 2013 -0800
drm/i915: Create a per file_priv default context
made having separate hangstats in file_private redundant
as i915_hw_context already contained hangstats. So
commit
c482972a086e03e6a6d27e4f7af2d868bf659648
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Fri Dec 6 14:11:20 2013 -0800
drm/i915: Piggy back hangstats off of contexts
consolidated the hangstats and enabled further improvements.
commit
44e2c0705a19e09d7b0f30a591f92e473e5ef89e
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date: Thu Jan 30 16:01:15 2014 +0200
drm/i915: Use i915_hw_context to set reset stats
tried to reap full benefits of consolidation but fell short
as we never 'switch' to the fake private context on gens
that don't have hw_contexts, so request->ctx remained NULL
on those.
Fix this by 'switching' to fake context so that when
request is submitted to ring, proper context gets assigned
to it.
Testcase: igt/drv_hangman
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76055
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Tue, 18 Mar 2014 15:26:25 +0000 (16:26 +0100)]
drm/i915: Fix up the forcewake timer initialization
This is a regression introduced in
commit
0294ae7b44bba7ab0d4cef9a8736287f38bdb4fd
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu Mar 13 12:00:29 2014 +0000
drm/i915: Consolidate forcewake resetting to a single function
The reordered setup sequence ended up calling del_timer_sync before
the timer was set up correctly, resulting in endless hilarity when
loading the driver.
Compared to Ben's patch (which moved around the setup_timer call to
sanitize_early) this moves the sanitize_early call around in the
driver load call. This way we avoid calling setup_timer again in the
resume code (where we also call sanitize_early).
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Tested-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76242
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 14 Mar 2014 14:51:17 +0000 (16:51 +0200)]
drm/i915/dp: use the new drm helpers for dp i2c-over-aux
The functionality remains largerly the same. The main difference is that
i2c-over-aux defer timeouts are increased to be safe for all use cases
instead of depending on DP device type and properties.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 14 Mar 2014 14:51:16 +0000 (16:51 +0200)]
drm/i915/dp: move dp aux ch register init to aux init
Do a slight rearrangement of the switch to prep for follow-up.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 14 Mar 2014 14:51:15 +0000 (16:51 +0200)]
drm/i915/dp: use the new drm helpers for dp aux
Functionality remains largely the same as before.
Note that the retry loops and native reply handling all moved into the
core drm helper functions now.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Fix up the stray ; Rodrigo spotted in his review and add a
note to the commit message to answer Rodrigo's question in his review.]
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 14 Mar 2014 14:51:14 +0000 (16:51 +0200)]
drm/i915/dp: move edp vdd enable/disable at a lower level in i2c-over-aux
This is prep work for conversion to generic drm i2c-over-aux helpers
where we won't have the function to do this at.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 14 Mar 2014 14:51:13 +0000 (16:51 +0200)]
drm/i915/dp: split edp_panel_vdd_on() for reuse
Introduce _edp_panel_vdd_on() that returns true if the call enabled vdd,
and a matching disable is needed. Keep edp_panel_vdd_on() as a helper
for when it is expected the vdd is off.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jani Nikula [Fri, 14 Mar 2014 14:51:12 +0000 (16:51 +0200)]
drm/dp: let drivers specify the name of the I2C-over-AUX adapter
Let the drivers specify the name of the I2C-over-AUX adapter to maintain
backwards compatibility in the sysfs when converting to the new
I2C-over-AUX helper infrastructure.
The i915 driver currently uses DPDDC-A to DPDDC-D as names for the DP
i2c adapters. These names show up in the i2c sysfs name attribute. We'd
like to be able to maintain that when switching over to the new helpers.
Due to i2c device and connector cleanup ordering issues we also recently
made the drm device (instead of connector) the parent of the i2c
adapters:
commit
80f65de3c9b8101c1613fa82df500ba6a099a11c
Author: Imre Deak <imre.deak@intel.com>
Date: Tue Feb 11 17:12:49 2014 +0200
drm/i915: dp: fix order of dp aux i2c device cleanup
With the name picked up from the adapter parent using dev_name(), it
would be the same for all i2c adapters with the current I2C-over-AUX
helpers.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dave Airlie [Tue, 18 Mar 2014 09:23:22 +0000 (19:23 +1000)]
Merge branch 'topic/core-stuff' of git://git.freedesktop.org/git/drm-intel into drm-next
Merge straggling core drm patches.
* 'topic/core-stuff' of git://git.freedesktop.org/git/drm-intel:
drm: Fix use-after-free in the shadow-attache exit code
drm/fb-helper: Do the 'max_conn_count' zero check
drm: Check if the allocation has succeeded before dereferencing newmode
drm/fb-helper: Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par()
drm/edid: request HDMI underscan by default
Joonyoung Shim [Sat, 15 Mar 2014 07:30:28 +0000 (16:30 +0900)]
drm/cma: remove to make sg_table when gem cma is created
The sg_table made when gem cma is created isn't used anywhere. The sgt
of struct drm_gem_cma_object will have only sg_tabel imported.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 18 Mar 2014 09:17:02 +0000 (19:17 +1000)]
Merge branch 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
This is the 3rd respin of the drm-anon patches. They allow module unloading, use
the pin_fs_* helpers recommended by Al and are rebased on top of drm-next. Note
that there are minor conflicts with the "drm-minor" branch.
* 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux:
drm: init TTM dev_mapping in ttm_bo_device_init()
drm: use anon-inode instead of relying on cdevs
drm: add pseudo filesystem for shared inodes
Dave Airlie [Tue, 18 Mar 2014 09:12:31 +0000 (19:12 +1000)]
Merge tag 'v3.14-rc7' into drm-next
Linux 3.14-rc7
Backmerge to help out Intel guys.
Dave Airlie [Tue, 18 Mar 2014 09:09:10 +0000 (19:09 +1000)]
Merge branch 'drm-docs' of ssh://people.freedesktop.org/~danvet/drm into drm-next
Here's my drm documentation update and driver api polish pull request.
Alex reviewed the entire pile, I've applied a little bit of spelling
polish in a few places since then and otherwise the Usual Suspects (David,
Rob, ...) don't seem up to have another look at it (I've poked them on
irc). So I think it's as good as it gets ;-)
Note that I've dropped the final imx breaker patch since that's blocked on
imx getting sane. Once that's landed I'll ping you to pick up that
straggler.
* 'drm-docs' of ssh://people.freedesktop.org/~danvet/drm: (34 commits)
drm/imx: remove drm_mode_connector_detach_encoder harder
drm: kerneldoc polish for drm_crtc.c
drm: kerneldoc polish for drm_crtc_helper.c
drm: drop error code for drm_helper_resume_force_mode
drm/crtc-helper: remove LOCKING from kerneldoc
drm: remove return value from drm_helper_mode_fill_fb_struct
drm/doc: Fix misplaced </para>
drm: remove drm_display_mode->private_size
drm: polish function kerneldoc for drm_modes.[hc]
drm/modes: drop maxPitch from drm_mode_validate_size
drm/modes: drop return value from drm_display_mode_from_videomode
drm/modes: remove drm_mode_height/width
drm: extract drm_modes.h for drm_crtc.h functions
drm: move drm_mode related functions into drm_modes.c
drm/doc: Repleace LOCKING kerneldoc sections in drm_modes.c
drm/doc: Integrate drm_modes.c kerneldoc
drm/kms: rip out drm_mode_connector_detach_encoder
drm/doc: Add function reference documentation for drm_mm.c
drm/doc: Overview documentation for drm_mm.c
drm/mm: Remove MM_UNUSED_TARGET
...
Dave Airlie [Tue, 18 Mar 2014 09:06:53 +0000 (19:06 +1000)]
Merge branch 'drm-intel-next' of git://git.freedesktop.org/git/drm-intel into drm-next
- fine-grained display power domains for byt (Imre)
- runtime pm prep patches for !hsw from Paulo
- WiZ hashing flag updates from Ville
- ppgtt setup cleanup and enabling of full 4G range on bdw (Ben)
- fixes from Jesse for the inherited intial config code
- gpu reset code improvements from Mika
- per-pipe num_planes refactoring from Damien
- stability fixes around bdw forcewake handling and other bdw w/a from Mika
Ken
- and as usual a pile of smaller fixes all over
* 'drm-intel-next' of git://git.freedesktop.org/git/drm-intel: (107 commits)
drm/i915: Go OCD on the Makefile
drm/i915: Implement command buffer parsing logic
drm/i915: Refactor shmem pread setup
drm/i915: Avoid div by zero when pixel clock is large
drm/i915: power domains: add vlv power wells
drm/i915: factor out intel_set_cpu_fifo_underrun_reporting_nolock
drm/i915: vlv: factor out valleyview_display_irq_install
drm/i915: sanity check power well sw state against hw state
drm/i915: factor out reset_vblank_counter
drm/i915: sanitize PUNIT register macro definitions
drm/i915: vlv: keep first level vblank IRQs masked
drm/i915: check pipe power domain when reading its hw state
drm/i915: check port power domain when reading the encoder hw state
drm/i915: get port power domain in connector detect handlers
drm/i915: add port power domains
drm/i915: add noop power well handlers instead of NULL checking them
drm/i915: split power well 'set' handler to separate enable/disable/sync_hw
drm/i915: add init power domain to always-on power wells
drm/i915: move power domain macros to intel_pm.c
drm/i915: Disable full ppgtt by default
...
Daniel Vetter [Tue, 18 Mar 2014 08:43:56 +0000 (09:43 +0100)]
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next
Conflicts:
drivers/gpu/drm/i915/Makefile
Makefile cleanup in drm-intel-next conflicts with a build-fix to move
intel_opregion under CONFIG_ACPI.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 30 Jan 2014 16:58:38 +0000 (17:58 +0100)]
drm: Fix use-after-free in the shadow-attache exit code
This regression has been introduced in
commit
b3f2333de8e81b089262b26d52272911523e605f
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Dec 11 11:34:31 2013 +0100
drm: restrict the device list for shadow attached drivers
Reported-by: Dave Jones <davej@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Xiubo Li [Mon, 10 Mar 2014 01:33:58 +0000 (09:33 +0800)]
drm/fb-helper: Do the 'max_conn_count' zero check
Since we cannot make sure the 'max_conn_count' will always be none
zero from the users, and then if max_conn_count equals to zero, the
kcalloc() will return ZERO_SIZE_PTR, which equals to ((void *)16).
So this patch fix this with just doing the 'max_conn_count' zero check
in the front of drm_fb_helper_init().
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
CC: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Damien Lespiau [Mon, 3 Mar 2014 23:59:07 +0000 (23:59 +0000)]
drm: Check if the allocation has succeeded before dereferencing newmode
We allocate memory in drm_display_mode_from_vic_index() and use it
without checking the pointer is valid. Fix that.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä [Wed, 26 Feb 2014 20:16:03 +0000 (22:16 +0200)]
drm/fb-helper: Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par()
Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par() to
make sure extra planes get disabled whenever fbcon takes over.
Otherwise the code in drm_fb_helper_set_par() was already doing the
exact same thing as drm_fb_helper_restore_fbdev_mode(), so this doesn't
change the behaviour in any other way.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dave Airlie [Mon, 17 Mar 2014 02:29:29 +0000 (12:29 +1000)]
Merge branch 'drm-minor' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
This series contains several cleanups for the DRM-minor handling. All but the
last one reviewed by Daniel and tested by Thierry. Initially, the series
included patches to convert minor-handling to a common base-ID, but have
been NACKed by Daniel so I dropped them and only included the main part in the
last patch. With this in place, drm_global_mutex is no longer needed for
minor-handling (but still for device unregistration..).
There are some pending patches that try to remove the global mutex entirely, but
they need some more reviews and thus are not included.
* 'drm-minor' of git://people.freedesktop.org/~dvdhrm/linux:
drm: make minors independent of global lock
drm: inline drm_minor_get_id()
drm: coding-style fixes in minor handling
drm: remove redundant minor->device field
drm: remove unneeded #ifdef CONFIG_DEBUGFS
drm: rename drm_unplug/get_minor() to drm_minor_register/unregister()
drm: move drm_put_minor() to drm_minor_free()
drm: allocate minors early
drm: add minor-lookup/release helpers
drm: provide device-refcount
drm: turn DRM_MINOR_* into enum
drm: remove unused DRM_MINOR_UNASSIGNED
drm: skip redundant minor-lookup in open path
drm: group dev-lifetime related members
Linus Torvalds [Mon, 17 Mar 2014 01:51:24 +0000 (18:51 -0700)]
Linux 3.14-rc7
Dave Airlie [Mon, 17 Mar 2014 00:42:58 +0000 (10:42 +1000)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
This branch includes 6 minor fixes mainly for udl. Everything non-trivial was
reviewed by Daniel and the patches have been on the list for quite some time.
* 'drm-fixes' of git://people.freedesktop.org/~dvdhrm/linux:
drm/gem: dont init "ret" in drm_gem_mmap()
drm/crtc: add sanity checks to create_dumb()
drm/gem: free vma-node during object-cleanup
drm/gem: fix indentation
drm/udl: fix Bpp calculation in dumb_create()
drm/udl: fix error-path when damage-req fails
Linus Torvalds [Sun, 16 Mar 2014 17:42:07 +0000 (10:42 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Three small fixes"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/clock: Prevent tracing recursion in sched_clock_cpu()
stop_machine: Fix^2 race between stop_two_cpus() and stop_cpus()
sched/deadline: Deny unprivileged users to set/change SCHED_DEADLINE policy
Linus Torvalds [Sun, 16 Mar 2014 17:41:21 +0000 (10:41 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Misc smaller fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Fix leak in uncore_type_init failure paths
perf machine: Use map as success in ip__resolve_ams
perf symbols: Fix crash in elf_section_by_name
perf trace: Decode architecture-specific signal numbers
Michael Kerrisk [Mon, 10 Mar 2014 13:46:07 +0000 (14:46 +0100)]
ipc: Fix 2 bugs in msgrcv() MSG_COPY implementation
While testing and documenting the msgrcv() MSG_COPY flag that Stanislav
Kinsbursky added in commit
4a674f34ba04 ("ipc: introduce message queue
copy feature" => kernel 3.8), I discovered a couple of bugs in the
implementation. The two bugs concern MSG_COPY interactions with other
msgrcv() flags, namely:
(A) MSG_COPY + MSG_EXCEPT
(B) MSG_COPY + !IPC_NOWAIT
The bugs are distinct (and the fix for the first one is obvious),
however my fix for both is a single-line patch, which is why I'm
combining them in a single mail, rather than writing two mails+patches.
===== (A) MSG_COPY + MSG_EXCEPT =====
With the addition of the MSG_COPY flag, there are now two msgrcv()
flags--MSG_COPY and MSG_EXCEPT--that modify the meaning of the 'msgtyp'
argument in unrelated ways. Specifying both in the same call is a
logical error that is currently permitted, with the effect that MSG_COPY
has priority and MSG_EXCEPT is ignored. The call should give an error
if both flags are specified. The patch below implements that behavior.
===== (B) (B) MSG_COPY + !IPC_NOWAIT =====
The test code that was submitted in commit
3a665531a3b7 ("selftests: IPC
message queue copy feature test") shows MSG_COPY being used in
conjunction with IPC_NOWAIT. In other words, if there is no message at
the position 'msgtyp'. return immediately with the error in ENOMSG.
What was not (fully) tested is the behavior if MSG_COPY is specified
*without* IPC_NOWAIT, and there is an odd behavior. If the queue
contains less than 'msgtyp' messages, then the call blocks until the
next message is written to the queue. At that point, the msgrcv() call
returns a copy of the newly added message, regardless of whether that
message is at the ordinal position 'msgtyp'. This is clearly bogus, and
problematic for applications that might want to make use of the MSG_COPY
flag.
I considered the following possible solutions to this problem:
(1) Force the call to block until a message *does* appear at the
position 'msgtyp'.
(2) If the MSG_COPY flag is specified, the kernel should implicitly add
IPC_NOWAIT, so that the call fails with ENOMSG for this case.
(3) If the MSG_COPY flag is specified, but IPC_NOWAIT is not, generate
an error (probably, EINVAL is the right one).
I do not know if any application would really want to have the
functionality of solution (1), especially since an application can
determine in advance the number of messages in the queue using msgctl()
IPC_STAT. Obviously, this solution would be the most work to implement.
Solution (2) would have the effect of silently fixing any applications
that tried to employ broken behavior. However, it would mean that if we
later decided to implement solution (1), then user-space could not
easily detect what the kernel supports (but, since I'm somewhat doubtful
that solution (1) is needed, I'm not sure that this is much of a
problem).
Solution (3) would have the effect of informing broken applications that
they are doing something broken. The downside is that this would cause
a ABI breakage for any applications that are currently employing the
broken behavior. However:
a) Those applications are almost certainly not getting the results they
expect.
b) Possibly, those applications don't even exist, because MSG_COPY is
currently hidden behind CONFIG_CHECKPOINT_RESTORE.
The upside of solution (3) is that if we later decided to implement
solution (1), user-space could determine what the kernel supports, via
the error return.
In my view, solution (3) is mildly preferable to solution (2), and
solution (1) could still be done later if anyone really cares. The
patch below implements solution (3).
PS. For anyone out there still listening, it's the usual story:
documenting an API (and the thinking about, and the testing of the API,
that documentation entails) is the one of the single best ways of
finding bugs in the API, as I've learned from a lot of experience. Best
to do that documentation before releasing the API.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: stable@vger.kernel.org
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Herrmann [Sun, 16 Mar 2014 12:13:51 +0000 (13:13 +0100)]
Merge branch 'drm-minor' into drm-next
Fix minor conflicts with drm-anon:
- allocation/free order
- drm_device header cleanups
David Herrmann [Sun, 16 Mar 2014 12:04:11 +0000 (13:04 +0100)]
Merge branch 'drm-anon' into drm-next
David Herrmann [Mon, 24 Feb 2014 14:53:25 +0000 (15:53 +0100)]
drm: make minors independent of global lock
We used to protect minor-lookup and setup by the global drm lock. To
continue our attempts of dropping drm_global_mutex, this patch makes the
minor management independent of it. Furthermore, we make it all atomic and
switch to spin-locks instead of a mutex.
Now that minor-lookup is independent, we also move the
"drm_is_unplugged()" test into the minor-lookup path. There is no reason
to ever return a minor for unplugged objects, so keep that logic internal.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 24 Feb 2014 14:35:09 +0000 (15:35 +0100)]
drm: inline drm_minor_get_id()
We can significantly simplify this helper by using plain multiplication.
Note that we converted the minor-type to an enum earlier so this didn't
work before.
We also fix a minor range-bug here: the limit argument of idr_alloc() is
*exclusive*, not inclusive, so we should use 64 instead of 63 as offset.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 24 Feb 2014 14:32:00 +0000 (15:32 +0100)]
drm: coding-style fixes in minor handling
Properly name goto-labels, remove empty lines and use DRM_ERROR if
possible.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Wed, 29 Jan 2014 12:12:31 +0000 (13:12 +0100)]
drm: remove redundant minor->device field
Whenever we access minor->device, we are in a minor->kdev->...->fops
callback so the minor->kdev pointer *must* be valid. Thus, simply use
minor->kdev->devt instead of minor->device and remove the redundant field.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 12:01:08 +0000 (13:01 +0100)]
drm: remove unneeded #ifdef CONFIG_DEBUGFS
No need to check for DEBUGFS, we already have dummy-fallbacks in our
headers.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 11:57:05 +0000 (12:57 +0100)]
drm: rename drm_unplug/get_minor() to drm_minor_register/unregister()
drm_get_minor() no longer allocates objects, and drm_unplug_minor() is now
the exact reverse of it. Rename it to _register/unregister() so their
name actually says what they do.
Furthermore, remove the direct minor-ptr and instead pass the minor-type.
This way we know the actual slot of the minor and can reset it if
required.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 11:55:48 +0000 (12:55 +0100)]
drm: move drm_put_minor() to drm_minor_free()
_put/get() are used for ref-counting, which we clearly don't do here.
Rename it to _free() and also use the common drm_minor_* prefix.
Furthermore, avoid passing the minor directly but instead use the type
like the other functions do, this allows us to reset the slot.
We also drop the redundant call to drm_unplug_minor() as drm_minor_free()
is only used from paths were that has already be called.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 11:43:56 +0000 (12:43 +0100)]
drm: allocate minors early
Instead of waiting for device-registration, we now allocate minor-objects
during device allocation. The minors are not registered or assigned an ID.
This is still postponed to device-registration.
While at it, remove the superfluous output-parameter in drm_get_minor().
The reason for this early allocation is to make
dev->primary/control/render available atomically. So once the device is
alive, all of them are already set and we never have the situation where
one of them is set after another (they're either NULL or set, but never
changed). This will eventually allow us to reduce minor-ID allocation to
one base-ID instead of a single ID for each.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 09:49:19 +0000 (10:49 +0100)]
drm: add minor-lookup/release helpers
Instead of accessing drm_minors_idr directly, this adds a small helper to
hide the internals. This will help us later to remove the drm_global_mutex
requirement for minor-lookup.
Furthermore, this also makes sure that minor->dev is always valid and
takes a reference-count to the device as long as the minor is used in an
open-file. This way, "struct file*"->private_data->dev is guaranteed to be
valid (which it has to, as we cannot reset it).
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 09:21:36 +0000 (10:21 +0100)]
drm: provide device-refcount
Lets not trick ourselves into thinking "drm_device" objects are not
ref-counted. That's just utterly stupid. We manage "drm_minor" objects on
each drm-device and each minor can have an unlimited number of open
handles. Each of these handles has the drm_minor (and thus the drm_device)
as private-data in the file-handle. Therefore, we may not destroy
"drm_device" until all these handles are closed.
It is *not* possible to reset all these pointers atomically and restrict
access to them, and this is *not* how this is done! Instead, we use
ref-counts to make sure the object is valid and not freed.
Note that we currently use "dev->open_count" for that, which is *exactly*
the same as a reference-count, just open coded. So this patch doesn't
change any semantics on DRM devices (well, this patch just introduces the
ref-count, anyway. Follow-up patches will replace open_count by it).
Also note that generic VFS revoke support could allow us to drop this
ref-count again. We could then just synchronously disable any fops->xy()
calls. However, this is not the case, yet, and no such patches are
in sight (and I seriously question the idea of dropping the ref-cnt
again).
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Wed, 29 Jan 2014 11:31:40 +0000 (12:31 +0100)]
drm: turn DRM_MINOR_* into enum
Use enum for DRM_MINOR_* constants to avoid hard-coding the IDs.
Furthermore, add a DRM_MINOR_CNT so we can perform range-checks in
follow-ups.
This changes the IDs of the minor-types by -1, but they're not used as
indices so this is fine.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 11:30:15 +0000 (12:30 +0100)]
drm: remove unused DRM_MINOR_UNASSIGNED
This constant is unused, remove it.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Wed, 29 Jan 2014 09:18:02 +0000 (10:18 +0100)]
drm: skip redundant minor-lookup in open path
The drm_open_helper() function is only used internally for drm_open() so
we can safely pass in the minor-object directly instead of the minor-id.
This way, we avoid the additional minor IDR lookup, which we already do
twice in drm_stub_open() and drm_open().
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Tue, 28 Jan 2014 15:00:35 +0000 (16:00 +0100)]
drm: group dev-lifetime related members
These members are all managed by DRM-core, lets group them together so
they're not split across the whole device.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
David Herrmann [Tue, 13 Aug 2013 17:10:30 +0000 (19:10 +0200)]
drm: init TTM dev_mapping in ttm_bo_device_init()
With dev->anon_inode we have a global address_space ready for operation
right from the beginning. Therefore, there is no need to do a delayed
setup with TTM. Instead, set dev_mapping during initialization in
ttm_bo_device_init() and remove any "if (dev_mapping)" conditions.
Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Fri, 3 Jan 2014 13:24:19 +0000 (14:24 +0100)]
drm: use anon-inode instead of relying on cdevs
DRM drivers share a common address_space across all character-devices of a
single DRM device. This allows simple buffer eviction and mapping-control.
However, DRM core currently waits for the first ->open() on any char-dev
to mark the underlying inode as backing inode of the device. This delayed
initialization causes ugly conditions all over the place:
if (dev->dev_mapping)
do_sth();
To avoid delayed initialization and to stop reusing the inode of the
char-dev, we allocate an anonymous inode for each DRM device and reset
filp->f_mapping to it on ->open().
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Fri, 3 Jan 2014 13:09:47 +0000 (14:09 +0100)]
drm: add pseudo filesystem for shared inodes
Our current DRM design uses a single address_space for all users of the
same DRM device. However, there is no way to create an anonymous
address_space without an underlying inode. Therefore, we wait for the
first ->open() callback on a registered char-dev and take-over the inode
of the char-dev. This worked well so far, but has several drawbacks:
- We screw with FS internals and rely on some non-obvious invariants like
inode->i_mapping being the same as inode->i_data for char-devs.
- We don't have any address_space prior to the first ->open() from
user-space. This leads to ugly fallback code and we cannot allocate
global objects early.
As pointed out by Al-Viro, fs/anon_inode.c is *not* supposed to be used by
drivers for anonymous inode-allocation. Therefore, this patch follows the
proposed alternative solution and adds a pseudo filesystem mount-point to
DRM. We can then allocate private inodes including a private address_space
for each DRM device at initialization time.
Note that we could use:
sysfs_get_inode(sysfs_mnt->mnt_sb, drm_device->dev->kobj.sd);
to get access to the underlying sysfs-inode of a "struct device" object.
However, most of this information is currently hidden and it's not clear
whether this address_space is suitable for driver access. Thus, unless
linux allows anonymous address_space objects or driver-core provides a
public inode per device, we're left with our own private internal mount
point.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 20 Jan 2014 19:15:38 +0000 (20:15 +0100)]
drm/gem: dont init "ret" in drm_gem_mmap()
There is no need to initialize this variable, so drop it. Otherwise, the
compiler won't warn if we use it unintialized.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 20 Jan 2014 19:09:55 +0000 (20:09 +0100)]
drm/crtc: add sanity checks to create_dumb()
Lets make sure some basic expressions are always true:
bpp != NULL
width != NULL
height != NULL
stride = bpp * width < 2^32
size = stride * height < 2^32
PAGE_ALIGN(size) < 2^32
At least the udl driver doesn't check for multiplication-overflows, so
lets just make sure it will never happen. These checks allow drivers to do
any 32bit math without having to test for mult-overflows themselves.
The two divisions might hurt performance a bit, but dumb_create() is only
used for scanout-buffers, so that should be fine. We could use 64bit math
to avoid the divisions, but that may be slow on 32bit machines.. Or maybe
there should just be a "safe_mult32()" helper, which currently doesn't
exist (I think?).
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 20 Jan 2014 19:05:43 +0000 (20:05 +0100)]
drm/gem: free vma-node during object-cleanup
All drivers currently need to clean up the vma-node manually. There is no
fancy logic involved so lets just clean it up unconditionally. The
vma-manager correctly catches multiple calls so we are fine.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 20 Jan 2014 19:07:49 +0000 (20:07 +0100)]
drm/gem: fix indentation
Remove double-whitespace and wrong indentation.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 20 Jan 2014 18:54:18 +0000 (19:54 +0100)]
drm/udl: fix Bpp calculation in dumb_create()
Probably a typo.. we obviously need "(bpp + 7) / 8" instead of
"(bpp + 1) / 8". Unlikely to be hit in any sane code, but lets be safe.
Use DIV_ROUND_UP() to avoid the problem entirely and make the core more
readable.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
David Herrmann [Mon, 20 Jan 2014 18:52:29 +0000 (19:52 +0100)]
drm/udl: fix error-path when damage-req fails
We need to call dma_buf_end_cpu_access() in case a damage-request.
Unlikely, but might happen during device unplug.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Linus Torvalds [Sat, 15 Mar 2014 19:41:53 +0000 (12:41 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of six fixes. Two are instant crash/null deref types
(storvsc and isci). The two qla2xxx are initialisation problems that
cause MSI-X failures and card misdetection, the isci erroneous macro
is actually illegal C that's causing a miscompile with certain gcc
versions and the be2iscsi bad if expression is a static checker fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] storvsc: NULL pointer dereference fix
[SCSI] qla2xxx: Poll during initialization for ISP25xx and ISP83xx
[SCSI] isci: correct erroneous for_each_isci_host macro
[SCSI] isci: fix reset timeout handling
[SCSI] be2iscsi: fix bad if expression
[SCSI] qla2xxx: Fix multiqueue MSI-X registration.
Daniel Vetter [Sat, 15 Mar 2014 11:11:54 +0000 (12:11 +0100)]
drm/imx: remove drm_mode_connector_detach_encoder harder
Since the last time I've looked more of this stuff sprouted up. Stomp
it down again.
Repeating the original justification for ripping this all out: There's
absolutely no need to deteach connectors before cleaning them up at
driver unload time. And since drm doesn't support hotplugging kms
objects at all it's positively dangerous to attempt this at runtime.
Luckily imx only detachs at driver cleanup time and hence we can
savely remove this.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Linus Torvalds [Sat, 15 Mar 2014 01:07:51 +0000 (18:07 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"Two x86 fixes: Suresh's eager FPU fix, and a fix to the NUMA quirk for
AMD northbridges.
This only includes Suresh's fix patch, not the "mostly a cleanup"
patch which had __init issues"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
x86, fpu: Check tsk_used_math() in kernel_fpu_end() for eager FPU
Linus Torvalds [Sat, 15 Mar 2014 01:02:02 +0000 (18:02 -0700)]
Merge tag 'pm+acpi-3.14-rc7' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"Three of these are regression fixes, for two recent regressions and
one introduced during the 3.13 cycle, and the fourth one is a working
version of the fix that had to be reverted last time.
Specifics:
- A recent ACPI resources handling fix overlooked the fact that it
had to update the ACPI PNP subsystem's resources parsing too and
caused confusing warning messages to be printed during system
intialization on some systems (with arguably buggy ACPI tables).
Fix from Zhang Rui.
- Moving the early ACPI initialization before timekeeping_init()
earlier in this cycle broke fast TSC calibration on at least one
system, so it needs to be done later, but still before
efi_enter_virtual_mode() to allow the EFI initialization to refer
to ACPI.
- A change related to code duplication reduction in the cpufreq core
inadvertently caused cpufreq intialization to fail for some CPUs
handled by intel_pstate by adding checks that may fail for that
driver, but aren't even necessary when it is used. The issue is
addressed by preventing those checks from run in the configurations
in which they aren't needed.
- If the Hardware Reduced ACPI flag is set in the ACPI tables, system
suspend, hibernation and ACPI power off will only work when special
sleep control and sleep status registeres are provided (their
addresses in the ACPI tables are not zero). If those registers are
not available, the features in question have no chances to work, so
they shouldn't even be regarded as supported. That helps with
power off in particular, because alternative power off methods may
be used then and they may actually work"
* tag 'pm+acpi-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states
ACPI / init: Invoke early ACPI initialization later
cpufreq: Skip current frequency initialization for ->setpolicy drivers
PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures
Linus Torvalds [Sat, 15 Mar 2014 01:01:23 +0000 (18:01 -0700)]
Merge tag 'dm-3.14-fixes-4' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device-mapper fixes form Mike Snitzer:
"Two small fixes for the DM cache target:
- fix corruption with >2TB fast device due to truncation bug
- fix access beyond end of origin device due to a partial block"
* tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix access beyond end of origin device
dm cache: fix truncation bug when copying a block to/from >2TB fast device
Daniel J Blueman [Thu, 13 Mar 2014 11:43:01 +0000 (19:43 +0800)]
x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
For systems with multiple servers and routed fabric, all
northbridges get assigned to the first server. Fix this by also
using the node reported from the PCI bus. For single-fabric
systems, the northbriges are on PCI bus 0 by definition, which
are on NUMA node 0 by definition, so this is invarient on most
systems.
Tested on fam10h and fam15h single and multi-fabric systems and
candidate for stable.
Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Steffen Persvold <sp@numascale.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/1394710981-3596-1-git-send-email-daniel@numascale.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Fri, 14 Mar 2014 04:32:16 +0000 (21:32 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Pretty minor set of fixes for radeon, ttm and vmwgfx. The ttm ones
are a regression and an oops seen on server chipsets"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
drm/radeon/cik: properly set compute ring status on disable
drm/radeon/cik: stop the sdma engines in the enable() function
drm/radeon/cik: properly set sdma ring status on disable
drm/radeon: fix runpm disabling on non-PX harder
drm/ttm: don't oops if no invalidate_caches()
drm/ttm: Work around performance regression with VM_PFNMAP
Linus Torvalds [Fri, 14 Mar 2014 04:25:40 +0000 (21:25 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c Kconfig fix from Wolfram Sang.
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: Remove usage of orphaned symbol OF_I2C
Linus Torvalds [Fri, 14 Mar 2014 03:38:36 +0000 (20:38 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"I know this is a bit more than you want to see, and I've told the
wireless folks under no uncertain terms that they must severely scale
back the extent of the fixes they are submitting this late in the
game.
Anyways:
1) vmxnet3's netpoll doesn't perform the equivalent of an ISR, which
is the correct implementation, like it should. Instead it does
something like a NAPI poll operation. This leads to crashes.
From Neil Horman and Arnd Bergmann.
2) Segmentation of SKBs requires proper socket orphaning of the
fragments, otherwise we might access stale state released by the
release callbacks.
This is a 5 patch fix, but the initial patches are giving
variables and such significantly clearer names such that the
actual fix itself at the end looks trivial.
From Michael S. Tsirkin.
3) TCP control block release can deadlock if invoked from a timer on
an already "owned" socket. Fix from Eric Dumazet.
4) In the bridge multicast code, we must validate that the
destination address of general queries is the link local all-nodes
multicast address. From Linus Lüssing.
5) The x86 BPF JIT support for negative offsets puts the parameter
for the helper function call in the wrong register. Fix from
Alexei Starovoitov.
6) The descriptor type used for RTL_GIGA_MAC_VER_17 chips in the
r8169 driver is incorrect. Fix from Hayes Wang.
7) The xen-netback driver tests skb_shinfo(skb)->gso_type bits to see
if a packet is a GSO frame, but that's not the correct test. It
should use skb_is_gso(skb) instead. Fix from Wei Liu.
8) Negative msg->msg_namelen values should generate an error, from
Matthew Leach.
9) at86rf230 can deadlock because it takes the same lock from it's
ISR and it's hard_start_xmit method, without disabling interrupts
in the latter. Fix from Alexander Aring.
10) The FEC driver's restart doesn't perform operations in the correct
order, so promiscuous settings can get lost. Fix from Stefan
Wahren.
11) Fix SKB leak in SCTP cookie handling, from Daniel Borkmann.
12) Reference count and memory leak fixes in TIPC from Ying Xue and
Erik Hugne.
13) Forced eviction in inet_frag_evictor() must strictly make sure all
frags are deleted, otherwise module unload (f.e. 6lowpan) can
crash. Fix from Florian Westphal.
14) Remove assumptions in AF_UNIX's use of csum_partial() (which it
uses as a hash function), which breaks on PowerPC. From Anton
Blanchard.
The main gist of the issue is that csum_partial() is defined only
as a value that, once folded (f.e. via csum_fold()) produces a
correct 16-bit checksum. It is legitimate, therefore, for
csum_partial() to produce two different 32-bit values over the
same data if their respective alignments are different.
15) Fix endiannes bug in MAC address handling of ibmveth driver, also
from Anton Blanchard.
16) Error checks for ipv6 exthdrs offload registration are reversed,
from Anton Nayshtut.
17) Externally triggered ipv6 addrconf routes should count against the
garbage collection threshold. Fix from Sabrina Dubroca.
18) The PCI shutdown handler added to the bnx2 driver can wedge the
chip if it was not brought up earlier already, which in particular
causes the firmware to shut down the PHY. Fix from Michael Chan.
19) Adjust the sanity WARN_ON_ONCE() in qdisc_list_add() because as
currently coded it can and does trigger in legitimate situations.
From Eric Dumazet.
20) BNA driver fails to build on ARM because of a too large udelay()
call, fix from Ben Hutchings.
21) Fair-Queue qdisc holds locks during GFP_KERNEL allocations, fix
from Eric Dumazet.
22) The vlan passthrough ops added in the previous release causes a
regression in source MAC address setting of outgoing headers in
some circumstances. Fix from Peter Boström"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits)
ipv6: Avoid unnecessary temporary addresses being generated
eth: fec: Fix lost promiscuous mode after reconnecting cable
bonding: set correct vlan id for alb xmit path
at86rf230: fix lockdep splats
net/mlx4_en: Deregister multicast vxlan steering rules when going down
vmxnet3: fix building without CONFIG_PCI_MSI
MAINTAINERS: add networking selftests to NETWORKING
net: socket: error on a negative msg_namelen
MAINTAINERS: Add tools/net to NETWORKING [GENERAL]
packet: doc: Spelling s/than/that/
net/mlx4_core: Load the IB driver when the device supports IBoE
net/mlx4_en: Handle vxlan steering rules for mac address changes
net/mlx4_core: Fix wrong dump of the vxlan offloads device capability
xen-netback: use skb_is_gso in xenvif_start_xmit
r8169: fix the incorrect tx descriptor version
tools/net/Makefile: Define PACKAGE to fix build problems
x86: bpf_jit: support negative offsets
bridge: multicast: enable snooping on general queries only
bridge: multicast: add sanity check for general query destination
tcp: tcp_release_cb() should release socket ownership
...
Richard Weinberger [Sun, 9 Feb 2014 18:47:40 +0000 (19:47 +0100)]
i2c: Remove usage of orphaned symbol OF_I2C
The symbol is an orphan, don't depend on it anymore.
Signed-off-by: Richard Weinberger <richard@nod.at>
[wsa: enhanced commit message]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: 687b81d083c0 (i2c: move OF helpers into the core)
Cc: stable@kernel.org
Rafael J. Wysocki [Thu, 13 Mar 2014 21:12:30 +0000 (22:12 +0100)]
Merge branches 'pnp', 'acpi-init', 'acpi-sleep' and 'pm-cpufreq'
* pnp:
PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures
* acpi-init:
ACPI / init: Invoke early ACPI initialization later
* acpi-sleep:
ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states
* pm-cpufreq:
cpufreq: Skip current frequency initialization for ->setpolicy drivers
Rafael J. Wysocki [Thu, 13 Mar 2014 21:11:39 +0000 (22:11 +0100)]
ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states
If the HW Reduced ACPI mode bit is set in the FADT, ACPICA uses
the optional sleep control and sleep status registers for making
the system enter sleep states (including S5), so it is not possible
to use system sleep states or power it off using ACPI if the HW
Reduced ACPI mode bit is set and those registers are not available.
For this reason, add a new function, acpi_sleep_state_supported(),
checking if the HW Reduced ACPI mode bit is set and whether or not
system sleep states are usable in that case in addition to checking
the return value of acpi_get_sleep_type_data() and make the ACPI
sleep setup routines use that function to check the availability of
system sleep states.
Among other things, this prevents the kernel from attempting to
use ACPI for powering off HW Reduced ACPI systems without the sleep
control and sleep status registers, because ACPI power off doesn't
have a chance to work on them. That allows alternative power off
mechanisms that may actually work to be used on those systems. The
affected machines include Dell Venue 8 Pro, Asus T100TA, Haswell
Desktop SDP and Ivy Bridge EP Demo depot.
References: https://bugzilla.kernel.org/show_bug.cgi?id=70931
Reported-by: Adam Williamson <awilliam@redhat.com>
Tested-by: Aubrey Li <aubrey.li@linux.intel.com>
Cc: 3.4+ <stable@vger.kernel.org> # 3.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Heiner Kallweit [Wed, 12 Mar 2014 21:13:19 +0000 (22:13 +0100)]
ipv6: Avoid unnecessary temporary addresses being generated
tmp_prefered_lft is an offset to ifp->tstamp, not now. Therefore
age needs to be added to the condition.
Age calculation in ipv6_create_tempaddr is different from the one
in addrconf_verify and doesn't consider ADDRCONF_TIMER_FUZZ_MINUS.
This can cause age in ipv6_create_tempaddr to be less than the one
in addrconf_verify and therefore unnecessary temporary address to
be generated.
Use age calculation as in addrconf_modify to avoid this.
Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Wahren [Wed, 12 Mar 2014 10:28:19 +0000 (11:28 +0100)]
eth: fec: Fix lost promiscuous mode after reconnecting cable
If the Freescale fec is in promiscuous mode and network cable is
reconnected then the promiscuous mode get lost. The problem is caused
by a too soon call of set_multicast_list to re-enable promisc mode.
The FEC_R_CNTRL register changes are overwritten by fec_restart.
This patch fixes this by moving the call behind the init of FEC_R_CNTRL
register in fec_restart.
Successful tested on a i.MX28 board.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
dingtianhong [Wed, 12 Mar 2014 09:31:59 +0000 (17:31 +0800)]
bonding: set correct vlan id for alb xmit path
The commit
d3ab3ffd1d728d7ee77340e7e7e2c7cfe6a4013e
(bonding: use rlb_client_info->vlan_id instead of ->tag)
remove the rlb_client_info->tag, but occur some issues,
The vlan_get_tag() will return 0 for success and -EINVAL for
error, so the client_info->vlan_id always be set to 0 if the
vlan_get_tag return 0 for success, so the client_info would
never get a correct vlan id.
We should only set the vlan id to 0 when the vlan_get_tag return error.
Fixes: d3ab3ffd1d7 (bonding: use rlb_client_info->vlan_id instead of ->tag)
CC: Ding Tianhong <dingtianhong@huawei.com>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Wed, 12 Mar 2014 07:21:24 +0000 (08:21 +0100)]
at86rf230: fix lockdep splats
This patch fix a lockdep in the at86rf230 driver, otherwise we get:
[ 30.206517] =================================
[ 30.211078] [ INFO: inconsistent lock state ]
[ 30.215647]
3.14.0-20140108-1-00994-g32e9426 #163 Not tainted
[ 30.221660] ---------------------------------
[ 30.226222] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
[ 30.232514] systemd-udevd/157 [HC1[1]:SC0[0]:HE0:SE1] takes:
[ 30.238439] (&(&lp->lock)->rlock){?.+...}, at: [<
c03600f8>] at86rf230_isr+0x18/0x44
[ 30.246621] {HARDIRQ-ON-W} state was registered at:
[ 30.251728] [<
c0061ce4>] __lock_acquire+0x7a4/0x18d8
[ 30.257135] [<
c0063500>] lock_acquire+0x68/0x7c
[ 30.262071] [<
c0588820>] _raw_spin_lock+0x28/0x38
[ 30.267203] [<
c0361240>] at86rf230_xmit+0x1c/0x144
[ 30.272412] [<
c057ba6c>] mac802154_xmit_worker+0x88/0x148
[ 30.278271] [<
c0047844>] process_one_work+0x274/0x404
[ 30.283761] [<
c00484c0>] worker_thread+0x228/0x374
[ 30.288971] [<
c004cfb8>] kthread+0xd0/0xe4
[ 30.293455] [<
c000dac8>] ret_from_fork+0x14/0x2c
[ 30.298493] irq event stamp: 8948
[ 30.301963] hardirqs last enabled at (8947): [<
c00cb290>] __kmalloc+0xb4/0x110
[ 30.309636] hardirqs last disabled at (8948): [<
c00115d4>] __irq_svc+0x34/0x5c
[ 30.317215] softirqs last enabled at (8452): [<
c0037324>] __do_softirq+0x1dc/0x264
[ 30.325243] softirqs last disabled at (8439): [<
c0037638>] irq_exit+0x80/0xf4
We use the lp->lock inside the isr of at86rf230, that's why we need the
irqsave spinlock calls.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Thu, 13 Mar 2014 12:52:15 +0000 (14:52 +0200)]
net/mlx4_en: Deregister multicast vxlan steering rules when going down
When mlx4_en_stop_port() is called, we need to deregister also the
tunnel steering rules that relate to multicast.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Wilson [Thu, 13 Mar 2014 12:00:29 +0000 (12:00 +0000)]
drm/i915: Consolidate forcewake resetting to a single function
We have two paths that try to reset the forcewake registers back to
known good values, with slightly different semantics and levels of
paranoia. Combine the two by passing a parameter to either restore the
forcewake status or to clear our bookkeeping, and raise the paranoia
level to max.
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>
Arnd Bergmann [Thu, 13 Mar 2014 09:44:34 +0000 (10:44 +0100)]
vmxnet3: fix building without CONFIG_PCI_MSI
Since commit
d25f06ea466e "vmxnet3: fix netpoll race condition",
the vmxnet3 driver fails to build when CONFIG_PCI_MSI is disabled,
because it unconditionally references the vmxnet3_msix_rx()
function.
To fix this, use the same #ifdef in the caller that exists around
the function definition.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Cc: "VMware, Inc." <pv-drivers@vmware.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: stable@vger.kernel.org
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 13 Mar 2014 09:18:53 +0000 (10:18 +0100)]
MAINTAINERS: add networking selftests to NETWORKING
Add it to NETWORKING [GENERAL] to make sure patches for selftests
go to the netdev list as well.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Vetter [Thu, 13 Mar 2014 16:45:01 +0000 (17:45 +0100)]
drm/i915: Remove erronous WARN in the vlv pipe crc code
It's been in there since forever, and no one cared. Doesn't put a too
good light onto our bug handling and QA efforts really ...
References: https://bugs.freedesktop.org/attachment.cgi?id=90970
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Mon, 10 Mar 2014 20:33:02 +0000 (21:33 +0100)]
drm: kerneldoc polish for drm_crtc.c
- Standardized on "Returns:" Block.
- Sprinkle missing kerneldoc over all exported functions and all
ioctls.
- Add a stern warning that driver's really shouldn't use
drm_mode_group_init_legacy_group.
- Usual attempt at more consistency.
- Add warnings that drm_mode_object_get/put don't do refcounting,
despite what the names might lead to believe.
- Try to clarify the framebuffer setup/cleanup functions wrt driver
private framebuffers - I've fallen recently over this when reviewing
i915 fbdev patches.
- Align function parameters where the kerneldoc has been updated.
- Most of the drm_get_*_name functions aren't thread safe. Add stern
warnings where this is the case.
Since a lot of the functions in drm_crtc.c are boilerplate to handle
properties and create default sets of them it might be useful to
extract all that code into a new file drm_property.c. Especially since
properties will be used a lot more in the future.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 23 Jan 2014 21:58:26 +0000 (22:58 +0100)]
drm: kerneldoc polish for drm_crtc_helper.c
Most of this is newly added kerneldoc for the hotplug and output
polling code. But I've also thrown in a bit lesser polish, most of it
is tuning down the shouting RETURN: headers.
Overview documentation for the output probing and mode setting support
code will be added in later patches.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 23 Jan 2014 21:28:30 +0000 (22:28 +0100)]
drm: drop error code for drm_helper_resume_force_mode
No driver cares, and it should generally work. Add a big comment
when drivers can't use this for recompense.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 23 Jan 2014 21:18:47 +0000 (22:18 +0100)]
drm/crtc-helper: remove LOCKING from kerneldoc
- It yells.
- WARNing about incorrect locking is harder to ignore, so better
than kerneldoc.
- Since those have been written per-crtc locks were added ...
So remove them and replace them by appropriate WARNs.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel Vetter [Thu, 23 Jan 2014 21:16:24 +0000 (22:16 +0100)]
drm: remove return value from drm_helper_mode_fill_fb_struct
Rightfully no driver ever checked this - it can't fail.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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