Commit Graph

827614 Commits

Author SHA1 Message Date
Fernando Pacheco
95ebcda3ef drm/i915/uc: Rename uC firmware init/fini functions
he uC firmware init function is called during GuC/HuC init early phases.
 Rename to include "_early" and properly reflect which phase we are at.

The uC firmware fini function is cleaning up the state set/created on
firmware fetch. Replace "_fini" with "_cleanup_fetch".

v2: also rename uC fw fini function

Signed-off-by: Fernando Pacheco <fernando.pacheco@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419230015.18121-2-fernando.pacheco@intel.com
2019-04-20 08:18:52 +01:00
Chris Wilson
267e80ee6a drm/i915/gtt: Skip clearing the GGTT under gen6+ full-ppgtt
If we know that the user cannot access the GGTT, by virtue of having a
segregated memory area, we can skip clearing the unused entries as they
cannot be accessed.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419201207.5477-1-chris@chris-wilson.co.uk
2019-04-19 21:29:29 +01:00
Christian König
b972fffa11 drm/i915: remove DRM_AUTH from IOCTLs which also have DRM_RENDER_ALLOW
This is to work around problems with libva and vainfo.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190417112525.16848-1-christian.koenig@amd.com
2019-04-19 20:49:39 +01:00
Chris Wilson
7ce99d24ed drm/i915: Expose the busyspin durations for i915_wait_request
An interesting discussion regarding "hybrid interrupt polling" for NVMe
came to the conclusion that the ideal busyspin before sleeping was half
of the expected request latency (and better if it was already halfway
through that request). This suggested that we too should look again at
our tradeoff between spinning and waiting. Currently, our spin simply
tries to hide the cost of enabling the interrupt, which is good to avoid
penalising nop requests (i.e. test throughput) and not much else.
Studying real world workloads suggests that a spin of upto 500us can
dramatically boost performance, but the suggestion is that this is not
from avoiding interrupt latency per-se, but from secondary effects of
sleeping such as allowing the CPU reduce cstate and context switch away.

In a truly hybrid interrupt polling scheme, we would aim to sleep until
just before the request completed and then wake up in advance of the
interrupt and do a quick poll to handle completion. This is tricky for
ourselves at the moment as we are not recording request times, and since
we allow preemption, our requests are not on as a nicely ordered
timeline as IO. However, the idea is interesting, for it will certainly
help us decide when busyspinning is worthwhile.

v2: Expose the spin setting via Kconfig options for easier adjustment
and testing.
v3: Don't get caught sneaking in a change to the busyspin parameters.
v4: Explain more about the "hybrid interrupt polling" scheme that we
want to migrate towards.

Suggested-by: Sagar Kamble <sagar.a.kamble@intel.com>
References: http://events.linuxfoundation.org/sites/events/files/slides/lemoal-nvme-polling-vault-2017-final_0.pdf
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sagar Kamble <sagar.a.kamble@intel.com>
Cc: Eero Tamminen <eero.t.tamminen@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Sagar Kamble <sagar.a.kamble@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419182625.11186-1-chris@chris-wilson.co.uk
2019-04-19 20:33:38 +01:00
Kristian H. Kristensen
b673499ae7 drm/msm: Split submit_lookup_objects() into two loops
First loop does copy_from_user() without the table lock held and
just stores the handle. Second loop looks up buffer objects with the
table_lock held without potentially blocking or faulting. This lets us
clean up a bunch of custom, non-faulting copy_from_user() code.

Signed-off-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:07 -07:00
Kristian H. Kristensen
8ea274accd drm/msm: Stop dropping struct_mutex in recover_worker()
Now that we don't have the mmap_sem lock inversion, we don't need to
jump through this particular hoop anymore.

Signed-off-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Kristian H. Kristensen
48e7f18392 drm/msm: Implement .gem_free_object_unlocked
We use a llist and a worker to delay the object cleanup. This avoids
taking mmap_sem and struct_mutex in the wrong order when calling
drm_gem_object_put_unlocked() from drm_gem_mmap().

Fixes lockdep problem with copy_from_user() in msm_ioctl_gem_submit().

Signed-off-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
fb076b15d5 drm/msm/a6xx: Remove an unused struct member
The HFI tasklet was removed in df0dff1 ("drm/msm/a6xx: Poll for HFI
responses") but the tasklet_struct was accidentally left behind.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
41570b747c msm/drm/a6xx: Turn off the GMU if resume fails
Currently if the GMU resume function fails all we try to do is clear the
BOOT_SLUMBER oob which usually times out and ends up in a cycle of death.
If the resume function fails at any point remove any RPMh votes that might
have been added and try to shut down the GMU hardware cleanly.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
e31fdb74c1 drm/msm/a6xx: Make GMU reset useful
Now that the GX domain is sorted we can wire up a working GMU reset.
IF a GMU hang was detected then try to forcefully shut down the GMU
in the power down sequence which should ensure that it can recover
normally on the next power up.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
9325d4266a drm/msm/gpu: Attach to the GPU GX power domain
99.999% of the time during normal operation the GMU is responsible
for power and clock control on the GX domain and the CPU remains
blissfully unaware. However, there is one situation where the CPU
needs to get involved:

The power sequencing rules dictate that the GX needs to be turned
off before the CX so that the CX can be turned on before the GX
during power up. During normal operation when the CPU is taking
down the CX domain a stop command is sent to the GMU which turns
off the GX domain and then the CPU handles the CX domain.

But if the GMU happened to be unresponsive while the GX domain was
left then the CPU will need to step in and turn off the GX domain
before resetting the CX and rebooting the GMU. This unfortunately
means that the CPU needs to be marginally aware of the GX domain
even though it is expected to usually keep its hands off.

To support this we create a semi-disabled GX power domain that
does nothing to the hardware on power up but tries to shut it
down normally on power down. In this method the reference counting
is correct and we can step in with the pm_runtime_put() at the right
time during the failure path.

This patch sets up the connection to the GX power domain and does
the magic to "enable" and disable it at the right points.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
c6c598535c dt-bindings: drm/msm/a6xx: Add GX power-domain for GMU bindings
The GMU should have two power domains defined: "cx" and "gx". "cx" is the
actual power domain for the device and "gx" will be attached at runtime
to manage reference counting on the GPU device in case of a GMU crash.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
b94a6e3737 drm/msm/a6xx: Remove unwanted regulator code
The GMU code currently has some misguided code to try to work around
a hardware quirk that requires the power domains on the GPU be
collapsed in a certain order. Upcoming patches will do this the
right way so get rid of the unused and unwanted regulator
code.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Jordan Crouse
b0fb66043a drm/msm/gpu: Add submit queue queries
Add the capability to query information from a submit queue.
The first available parameter is for querying the number of GPU faults
(hangs) that can be attributed to the queue.

This is useful for implementing context robustness. A user context can
regularly query the number of faults to see if it is responsible for any
and if so it can invalidate itself.

This is also helpful for testing by confirming to the user  driver if a
particular command stream caused a fault (or not as the case may be).

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-19 11:50:06 -07:00
Rob Clark
48dc4241c9 drm/msm: add param to retrieve # of GPU faults (global)
For KHR_robustness, userspace wants to know two things, the count of GPU
faults globally, and the count of faults attributed to a given context.
This patch providees the former, and the next patch provides the latter.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
2019-04-19 11:50:00 -07:00
Rob Clark
d674c963af drm/msm/gpu: add per-process pagetables param
For now it always returns '0' (false), but once the iommu work is in
place to enable per-process pagetables we can update the value returned.

Userspace needs to know this to make an informed decision about exposing
KHR_robustness.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
2019-04-19 11:49:42 -07:00
Chris Wilson
91cbdb83d3 drm/i915: Track HAS_RPS alongside HAS_RC6 in the device info
For consistency (and elegance!), add intel_device_info.has_rps.
The immediate boon is that RPS support is now emitted along the other
capabilities in the debug log and after errors.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419134836.5626-1-chris@chris-wilson.co.uk
2019-04-19 15:52:26 +01:00
Janusz Krzysztofik
d69990e0c3 drm/i915: Use drm_dev_unplug()
The driver does not currently support unbinding from a device which is
in use.  Since open file descriptors may still be pointing into kernel
memory where the device structures used to be, entirely correct kernel
panics protect the driver from being unbound as we should not be
unbinding it before those dangling pointers have been made safe.

According to the documentation found inside drivers/gpu/drm/drm_drv.c,
drm_dev_unplug() should be used instead of drm_dev_unregister() in
order to make a device inaccessible to users as soon as it is unpluged.
Follow that advice to make those possibly dangling pointers safe,
protected by DRM layer from a user who is otherwise left pointing into
possibly reused kernel memory after the driver has been unbound from
the device.  Once done, also cancel inflight operations immediately by
calling i915_gem_set_wedged().

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405130235.7707-2-janusz.krzysztofik@linux.intel.com
2019-04-19 11:23:59 +01:00
Chris Wilson
844e33135d drm/i915: Remove unwarranted clamping for hsw/bdw
We always start off at an "efficient frequency" and can let the system
autotune from there, eliminating the need to clamp the available range.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418205358.11450-1-chris@chris-wilson.co.uk
2019-04-19 08:24:09 +01:00
Wen Yang
6cd5235c31 drm/msm: a5xx: fix possible object reference leak
The call to of_get_child_by_name returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with the following warnings:
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:57:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 47, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:66:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 47, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:118:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 47, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:57:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 51, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:66:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 51, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:118:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 51, but without a corresponding object release within this function.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Mamta Shukla <mamtashukla555@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Sharat Masetty <smasetty@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org (open list)
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Douglas Anderson
e1505f627e drm/msm: Cleanup A6XX opp-level reading
The patch ("OPP: Add support for parsing the 'opp-level' property")
adds an API enabling a cleaner way to read the opp-level.  Let's use
the new API.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
4e99851742 drm/msm/dpu: check split role for single flush
Removing unwanted access of crtc_state for finding this information.
Use split role information to know whether we have slave ctl.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-8-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
9d4c8fd1af drm/msm/dpu: assign intf to encoder in mode_set
Iterate and assign HW intf block to physical encoders
in encoder modeset. Moving all the HW block assignments
to encoder modeset to allow easy switching to state
based resource management.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-7-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
b107603b4a drm/msm/dpu: map mixer/ctl hw blocks in encoder modeset
After resource allocation, iterate and populate mixer/ctl
hw blocks in encoder modeset thereby centralizing all
the resource mapping to the CRTC. This change is made
for easy switching to state based allocation using
private objects later in this series.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-6-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
c2ab55a68a drm/msm/dpu: dont use encoder->crtc in atomic path
encoder->crtc is not really meaningful for atomic path. Use
crtc->encoder_mask to identify the crtc attached with
an encoder.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-5-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
a7fcc3237f drm/msm/dpu: release resources on modeset failure
release resources allocated in mode_set if any of
the hw check fails. Most of these checks are not
necessary and they will be removed in the follow up
patches with state based resource allocations.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-4-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
366334a312 drm/msm/dpu: remove phys_vid subclass
Not holding any video encoder specific data. Get rid of it.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-3-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Jeykumar Sankaran
b6057cda8f drm/msm/dpu: move hw_inf encoder baseclass
Both video and command physical encoders will have
a hw interface assigned to it. So there is really no
need to track the hw block in specific encoder subclass.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-2-git-send-email-jsanka@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Sean Paul
f98baa3109 drm/msm: dpu: Don't set frame_busy_mask for async updates
The frame_busy mask is used in frame_done event handling, which is not
invoked for async commits. So an async commit will leave the
frame_busy mask populated after it completes and future commits will start
with the busy mask incorrect.

This showed up on disable after cursor move. I was hitting the "this should
not happen" comment in the frame event worker since frame_busy was set,
we queued the event, but there were no frames pending (since async
also doesn't set that).

Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190130163220.138637-1-sean@poorly.run
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Sean Paul
be77ef760c drm/msm: dpu: Don't queue the frame_done watchdog for cursor
In the case of an async/cursor update, we don't wait for the frame_done
event, which means handle_frame_done is never called, and the frame_done
watchdog isn't canceled. Currently, this results in a frame_done timeout
every time the cursor moves without a synchronous frame following it up
before the timeout expires. Since we don't wait for frame_done, and
don't handle it, we shouldn't modify the watchdog.

Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-4-sean@poorly.run

Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Sean Paul
70df9610de drm/msm: dpu: Untangle frame_done timeout units
There exists a bunch of confusion as to what the actual units of
frame_done is:

- The definition states it's in # of frames
- CRTC treats it like it's ms
- frame_done_timeout comment thinks it's Hz, but it stores ms
- frame_done timer is setup such that it _should_ be in frames, but the
  timeout is super long

So this patch tries to interpret what the driver really wants. I've
de-centralized the #define since the consumers are expecting different
units.

For crtc, we just use 60ms since that's what it was doing before.
Perhaps we could get fancy and scale with vrefresh, but that's for
another time.

For encoder, fix the comments and rename frame_done_timeout so it's
obvious what the units are. In practice, frame_done_timeout is really
just checked against 0 || !0, which I guess is why the units being wrong
didn't matter. I've also dropped the timeout from the previous 60 frames
to 5. That seems like more than enough time to give up on a frame, and
my guess is that no one intended for the timeout to _actually_ be 60
frames.

Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-3-sean@poorly.run

Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:10 -07:00
Sean Paul
2e0391865b drm/msm: dpu: Simplify frame_done watchdog timeout calculation
Instead of setting the timeout and then immediately reading it back
(along with the hand-rolled msecs_to_jiffies calculation), just
calculate it once and set it in both places at the same time.

Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-2-sean@poorly.run

Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:09 -07:00
Sean Paul
6117f86202 drm/msm: Use drm_mode_vrefresh instead of mode->vrefresh
Use the drm_mode_vrefresh helper where we need refresh rate in case
vrefresh is empty.

Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-1-sean@poorly.run

Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:09 -07:00
Luca Weiss
7603df38cc drm/msm: Fix NULL pointer dereference
[    3.707412] Unable to handle kernel NULL pointer dereference at virtual address 0000009c
[    3.714511] pgd = (ptrval)
[    3.722742] [0000009c] *pgd=00000000
[    3.725238] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[    3.728968] Modules linked in:
[    3.734265] CPU: 3 PID: 112 Comm: kworker/3:2 Tainted: G        W         5.0.0-rc7-00183-g06a1c31df9eb #4
[    3.737142] Hardware name: Generic DT based system
[    3.746778] Workqueue: events deferred_probe_work_func
[    3.751542] PC is at msm_gem_map_vma+0x3c/0xac
[    3.756669] LR is at msm_gem_get_and_pin_iova+0xd8/0x134
[    3.761086] pc : [<c07d3b7c>]    lr : [<c07d14f8>]    psr: 60000013
[    3.766560] sp : ee297be8  ip : ed9ab1c0  fp : ed93b800
[    3.772546] r10: ee35e180  r9 : 00000000  r8 : ee297c80
[    3.777752] r7 : 00000000  r6 : 7c100000  r5 : 00000000  r4 : ee35e180
[    3.782968] r3 : 00000001  r2 : 00000003  r1 : ee35e180  r0 : 00000000
[    3.789562] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    3.796079] Control: 10c5787d  Table: 2e3a806a  DAC: 00000051
[    3.803282] Process kworker/3:2 (pid: 112, stack limit = 0x(ptrval))
[    3.809006] Stack: (0xee297be8 to 0xee298000)
[    3.815445] 7be0:                   00000000 c1108c48 eda8c000 00000003 eda8c0fc c1108c48
[    3.819715] 7c00: eda8c000 00000003 eda8c0fc c07d14f8 00000001 c07d1100 7c100000 00000000
[    3.827873] 7c20: eda8c000 bb7ffb78 00000000 eda8c000 00000000 00000000 c0c8b1d4 ee3bfa00
[    3.836037] 7c40: ee3b9800 c07d1684 00000000 c1108c48 ee0d7810 ee3b9800 c0c8b1d4 c07d222c
[    3.844193] 7c60: ee3bfd84 ee297c80 00000000 c0b1d5b0 ee3bfc40 c07dcfd8 ee3bfd84 ee297c80
[    3.852357] 7c80: 0000006d ee3bfc40 ee0d7810 bb7ffb78 c0c8b1d4 00000000 ee3bfc40 c07ddb48
[    3.860516] 7ca0: 00002004 c0eba384 ee3bfc40 c079eba0 ee3bd040 ee3b9800 00000001 ed93b800
[    3.868673] 7cc0: ed9aa100 c07db7e8 ee3bf240 ed9a6500 00000001 ee3b9800 ee3bf2d4 c07a0a30
[    3.876834] 7ce0: ed93b800 7d100000 c1108c48 ee0d7610 ee3b9800 ed93b800 c1108c48 00000000
[    3.884991] 7d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    3.893151] 7d20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bb7ffb78
[    3.901310] 7d40: c12113c4 ed93b800 ee3b9800 c1108c48 ee9eec10 00000000 ed93b800 7d100000
[    3.909472] 7d60: eff7b000 c07cf748 7d100000 00000000 c0e9a350 c0b1d5b0 c12113c4 c0961e40
[    3.917633] 7d80: c12113c4 40000113 eeff4bec c0ebe004 00000019 c0b1d230 ee9eeda8 60000113
[    3.925791] 7da0: ee35d300 ee9eeda8 c07ce260 bb7ffb78 c07ce260 ee35d2c0 00000028 00000002
[    3.933950] 7dc0: eeb76280 c118f884 ee0be640 c11c6128 c07ce260 c07ea4ac 00000000 c0962b48
[    3.942108] 7de0: c118f868 00000001 c0ebbc98 ee35d2c0 00000000 eeb76280 00000000 c118f87c
[    3.950270] 7e00: ee35d2c0 00000000 c11c63e0 c118f694 00000019 c07ea5d0 ee0d7810 00000000
[    3.958430] 7e20: c118f694 00000000 00000000 c07f2b0c c120f55c ee0d7810 c120f560 00000000
[    3.966590] 7e40: 00000000 c07f08c4 c07f0e8c ee0d7810 c11ba3d0 ee0d7810 c118f694 c07f0e8c
[    3.974748] 7e60: c1108c48 00000001 c0ebc3cc c11c63f8 c11ba3d0 c07f0c08 00000001 c07f2f8c
[    3.982908] 7e80: c118f694 00000000 ee297ed4 c07f0e8c c1108c48 00000001 c0ebc3cc c11c63f8
[    3.991068] 7ea0: c11ba3d0 c07ee8a0 c11ba3d0 ee82686c ee0baf38 bb7ffb78 ee0d7810 ee0d7810
[    3.999227] 7ec0: c1108c48 ee0d7844 c118faac c07f05b0 ee0d7810 ee0d7810 00000001 bb7ffb78
[    4.007389] 7ee0: ee0d7810 ee0d7810 c118fd18 c118faac c11c63e0 c07ef7d0 ee0d7810 c118fa90
[    4.015548] 7f00: c118fa90 c07efd68 c118fac8 ee27fe00 eefd9c80 eefdcd00 00000000 c118facc
[    4.023708] 7f20: 00000000 c033c038 eefd9c80 eefd9c80 00000008 ee27fe00 ee27fe14 eefd9c80
[    4.031866] 7f40: 00000008 c1103d00 eefd9c98 ee296000 eefd9c80 c033ce54 ee907eac c0b1d230
[    4.040026] 7f60: ee907eac eea24440 ee285000 00000000 ee296000 ee27fe00 c033ce24 eea2445c
[    4.048188] 7f80: ee907eac c0341db0 00000000 ee285000 c0341c8c 00000000 00000000 00000000
[    4.056346] 7fa0: 00000000 00000000 00000000 c03010e8 00000000 00000000 00000000 00000000
[    4.064505] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    4.072665] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[    4.080828] [<c07d3b7c>] (msm_gem_map_vma) from [<c07d14f8>] (msm_gem_get_and_pin_iova+0xd8/0x134)
[    4.088983] [<c07d14f8>] (msm_gem_get_and_pin_iova) from [<c07d1684>] (_msm_gem_kernel_new+0x38/0xac)
[    4.097839] [<c07d1684>] (_msm_gem_kernel_new) from [<c07d222c>] (msm_gem_kernel_new+0x24/0x2c)
[    4.107130] [<c07d222c>] (msm_gem_kernel_new) from [<c07dcfd8>] (dsi_tx_buf_alloc_6g+0x44/0x90)
[    4.115631] [<c07dcfd8>] (dsi_tx_buf_alloc_6g) from [<c07ddb48>] (msm_dsi_host_modeset_init+0x80/0x104)
[    4.124313] [<c07ddb48>] (msm_dsi_host_modeset_init) from [<c07db7e8>] (msm_dsi_modeset_init+0x34/0x1c0)
[    4.133691] [<c07db7e8>] (msm_dsi_modeset_init) from [<c07a0a30>] (mdp5_kms_init+0x764/0x7e0)
[    4.143409] [<c07a0a30>] (mdp5_kms_init) from [<c07cf748>] (msm_drm_bind+0x56c/0x740)
[    4.151824] [<c07cf748>] (msm_drm_bind) from [<c07ea4ac>] (try_to_bring_up_master+0x238/0x2b4)
[    4.159636] [<c07ea4ac>] (try_to_bring_up_master) from [<c07ea5d0>] (component_add+0xa8/0x170)
[    4.168146] [<c07ea5d0>] (component_add) from [<c07f2b0c>] (platform_drv_probe+0x48/0x9c)
[    4.176737] [<c07f2b0c>] (platform_drv_probe) from [<c07f08c4>] (really_probe+0x278/0x404)
[    4.184981] [<c07f08c4>] (really_probe) from [<c07f0c08>] (driver_probe_device+0x78/0x1c0)
[    4.193147] [<c07f0c08>] (driver_probe_device) from [<c07ee8a0>] (bus_for_each_drv+0x74/0xb8)
[    4.201389] [<c07ee8a0>] (bus_for_each_drv) from [<c07f05b0>] (__device_attach+0xd0/0x164)
[    4.209984] [<c07f05b0>] (__device_attach) from [<c07ef7d0>] (bus_probe_device+0x84/0x8c)
[    4.218143] [<c07ef7d0>] (bus_probe_device) from [<c07efd68>] (deferred_probe_work_func+0x48/0xc4)
[    4.226398] [<c07efd68>] (deferred_probe_work_func) from [<c033c038>] (process_one_work+0x204/0x574)
[    4.235254] [<c033c038>] (process_one_work) from [<c033ce54>] (worker_thread+0x30/0x560)
[    4.244534] [<c033ce54>] (worker_thread) from [<c0341db0>] (kthread+0x124/0x154)
[    4.252606] [<c0341db0>] (kthread) from [<c03010e8>] (ret_from_fork+0x14/0x2c)
[    4.259966] Exception stack(0xee297fb0 to 0xee297ff8)
[    4.266998] 7fa0:                                     00000000 00000000 00000000 00000000
[    4.272143] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    4.280297] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    4.288451] Code: e5813080 1a000013 e3a03001 e5c4307c (e590009c)
[    4.294933] ---[ end trace 18729cc2bca2b4b3 ]---

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:09 -07:00
Jordan Crouse
a6bb79ab48 drm/msm: Remove pm_runtime calls from msm_iommu.c
Currently the IOMMU code calls pm_runtime_get/put on the GPU or display
device before doing a IOMMU operation. This was because usually the
IOMMU driver didn't do power control of its own and since the hardware
used the same clocks and power as the respective multimedia device it
was a easy way to make sure that the power was available.

Now two things have changed. First, the SMMU devices can do their own power
control and more important bringing up the a6xx GPU isn't as easy as
turning on some clocks. To bring the GPU up we need the GMU which itself
needs the IOMMU so we have a chicken and egg problem.

Luckily this is easily fixed by removing the pm_runtime calls from the
functions and letting the device link to the IOMMU device handle the magic.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:09 -07:00
Lucas Stach
0abdba47dc drm/msm: don't allocate pages from the MOVABLE zone
The pages backing the GEM objects are kept pinned in place as
long as they are alive, so they must not be allocated from the
MOVABLE zone. Blocking page migration for too long will cause
the VM subsystem headaches and will outright break CMA, as a
few pinned pages in CMA will lead to failure to find the
required large contiguous regions.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-04-18 10:04:09 -07:00
Chris Wilson
26ddc068de drm/i915: Setup the RCS ring prior to execution
We need to set the various ring registers prior to restarting the
engine, or else we may restart it after reset/resume in an ill-defined
state.

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418132720.3716-2-chris@chris-wilson.co.uk
2019-04-18 17:33:49 +01:00
Chris Wilson
dfe2c8ed23 drm/i915: Stop overwriting RING_IMR in rcs resume
We store the engine->imr mask and set up the RING_IMR register on
restarting the engine. We do not then want to overwrite it with
an incomplete mask later as we may then lose interrupts!

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418132720.3716-1-chris@chris-wilson.co.uk
2019-04-18 17:33:48 +01:00
Dmitry Osipenko
61b51fb51c drm/tegra: gem: Fix CPU-cache maintenance for BO's allocated using get_pages()
The allocated pages need to be invalidated in CPU caches. On ARM32 the
DMA_BIDIRECTIONAL flag only ensures that data is written-back to DRAM and
the data stays in CPU cache lines. While the DMA_FROM_DEVICE flag ensures
that the corresponding CPU cache lines are getting invalidated and nothing
more, that's exactly what is needed for a newly allocated pages.

This fixes randomly failing rendercheck tests on Tegra30 using the
Opentegra driver for tests that use small-sized pixmaps (10x10 and less,
i.e. 1-2 memory pages) because apparently CPU reads out stale data from
caches and/or that data is getting evicted to DRAM at the time of HW job
execution.

Fixes: bd43c9f0fa ("drm/tegra: gem: Map pages via the DMA API")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:48:09 +02:00
Jonathan Marek
debcd8f954 drm/panel: simple: add lg,acx467akm-7 panel
Add ACX467AKM-7 4.95" 1080×1920 LCD panel that is found on the LG Nexus
5 (hammerhead) phone.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
[masneyb@onstation.org: checkpatch fixes; rename jdi,1080p-hammerhead
binding to lg,acx467akm-7.]
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181124200628.24393-2-masneyb@onstation.org
2019-04-17 23:02:44 +02:00
Brian Masney
9e0b597534 dt-bindings: drm/panel: simple: add lg,acx467akm-7 panel
Add binding for the LG ACX467AKM-7 4.95" 1080×1920 LCD panel that is
found on the LG Nexus 5 (hammerhead) phone. This appears to be a JDI
panel based on some Internet searches, however a specific model number
could not be found. I disassembled an old Nexus 5 with a broken
screen and the LG part number is the only model number present on the
back of the panel, so I think that is probably the best ID to use.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181124200628.24393-1-masneyb@onstation.org
2019-04-17 23:02:25 +02:00
Linus Walleij
bd84995f06 drm/mcde: Add device tree bindings
This adds the device tree bindings for the ST-Ericsson
Multi Channel Display Engine MCDE as found in the U8500
SoCs.

Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190416142844.12038-1-linus.walleij@linaro.org
2019-04-17 22:54:03 +02:00
Dave Airlie
dbb9247167 Revert "drm: allow render capable master with DRM_AUTH ioctls"
This reverts commit 8059add047.

This commit while seemingly a good idea, breaks a radv check,
for a node being master because something succeeds where it failed
before now.

Apply the Linus rule, revert early and try again, we don't break
userspace.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2019-04-18 06:46:33 +10:00
Janusz Krzysztofik
bd53280ef0 drm/drv: Fix incorrect resolution of merge conflict
Commit f06ddb5309 ("BackMerge v5.1-rc5 into drm-next") incorrectly
resolved a merge conflict related to a patch having been merged twice:
- commit 3f04e0a6cf ("drm: Fix drm_release() and device unplug")
  introduced as a standalone fix via drm-fixes branch,
- commit 1ee57d4d75 ("drm: Fix drm_release() and device unplug")
  applied as patch 1/2 of a series on drm-next branch.
That incorrect resolution of the conflict effectively reverted a change
introduced to drivers/gpu/drm/drm_drv.c by patch 2/2 of that series -
commit ba3bf37e15 ("drm/drv: drm_dev_unplug(): Move out drm_dev_put()
call").  Fix it.

Fixes: f06ddb5309 ("BackMerge v5.1-rc5 into drm-next")
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190417133232.16232-1-janusz.krzysztofik@linux.intel.com
2019-04-18 06:42:22 +10:00
Neil Armstrong
852ce7285c drm/meson: add size and alignment requirements for dumb buffers
The Amlogic SoCs Canvas buffers stride must be aligned on 64bytes
and overall size should be aligned on PAGE width.

Adds a custom dumb_create op to adds these requirements.

Fixes: bbbe775ec5 ("drm: Add support for Amlogic Meson Graphic Controller")
Suggested-by: Sky Zhou <sky.zhou@amlogic.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Sky Zhou <sky.zhou@amlogic.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190408090137.2402-1-narmstrong@baylibre.com
2019-04-17 20:19:41 +02:00
YueHaibing
2ccb8433eb drm/meson: Make some functions static
Fix sparse warnings:

drivers/gpu/drm/meson/meson_viu.c:93:6: warning: symbol 'meson_viu_set_g12a_osd1_matrix' was not declared. Should it be static?
drivers/gpu/drm/meson/meson_viu.c:121:6: warning: symbol 'meson_viu_set_osd_matrix' was not declared. Should it be static?
drivers/gpu/drm/meson/meson_viu.c:190:6: warning: symbol 'meson_viu_set_osd_lut' was not declared. Should it be static?

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190413141455.34020-1-yuehaibing@huawei.com
2019-04-17 20:19:13 +02:00
YueHaibing
1f2f059957
drm/sun4i: Make some symbols static
Fix sparse warnings:

drivers/gpu/drm/sun4i/sun8i_tcon_top.c:271:36: warning: symbol 'sun8i_r40_tcon_top_quirks' was not declared. Should it be static?
drivers/gpu/drm/sun4i/sun8i_tcon_top.c:276:36: warning: symbol 'sun50i_h6_tcon_top_quirks' was not declared. Should it be static?
drivers/gpu/drm/sun4i/sun4i_tcon.c:239:6: warning: symbol 'sun4i_tcon_set_mux' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190416145855.20852-1-yuehaibing@huawei.com
2019-04-17 18:55:08 +02:00
Chris Wilson
9953402349 drm/i915: Avoid use-after-free in reporting create.size
We have to avoid chasing after a userspace race!

<3>[  473.114328] BUG: KASAN: use-after-free in i915_gem_create+0x1d2/0x1f0 [i915]
<3>[  473.114389] Read of size 8 at addr ffff88815bf1d840 by task gem_flink_race/1541

<4>[  473.114464] CPU: 1 PID: 1541 Comm: gem_flink_race Tainted: G     U            5.1.0-rc4-g7d07e025e786-kasan_88+ #1
<4>[  473.114469] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016
<4>[  473.114474] Call Trace:
<4>[  473.114488]  dump_stack+0x7c/0xbb
<4>[  473.114612]  ? i915_gem_create+0x1d2/0x1f0 [i915]
<4>[  473.114621]  print_address_description+0x65/0x270
<4>[  473.114728]  ? i915_gem_create+0x1d2/0x1f0 [i915]
<4>[  473.114839]  ? i915_gem_create+0x1d2/0x1f0 [i915]
<4>[  473.114848]  kasan_report+0x149/0x18d
<4>[  473.114962]  ? i915_gem_create+0x1d2/0x1f0 [i915]
<4>[  473.115069]  i915_gem_create+0x1d2/0x1f0 [i915]
<4>[  473.115176]  ? i915_gem_object_create.part.28+0x4b0/0x4b0 [i915]
<4>[  473.115289]  ? i915_gem_dumb_create+0x1a0/0x1a0 [i915]
<4>[  473.115297]  drm_ioctl_kernel+0x192/0x260
<4>[  473.115306]  ? drm_ioctl_permit+0x280/0x280
<4>[  473.115326]  drm_ioctl+0x67c/0x960
<4>[  473.115438]  ? i915_gem_dumb_create+0x1a0/0x1a0 [i915]
<4>[  473.115448]  ? drm_getstats+0x20/0x20
<4>[  473.115459]  ? __lock_acquire+0xa66/0x3fe0
<4>[  473.115474]  ? _raw_spin_unlock_irqrestore+0x39/0x60
<4>[  473.115485]  ? debug_object_active_state+0x2ea/0x4e0
<4>[  473.115496]  ? debug_show_all_locks+0x2d0/0x2d0
<4>[  473.115513]  do_vfs_ioctl+0x18d/0xfa0
<4>[  473.115522]  ? check_flags.part.27+0x440/0x440
<4>[  473.115532]  ? ioctl_preallocate+0x1a0/0x1a0
<4>[  473.115547]  ? __fget+0x2ac/0x410
<4>[  473.115561]  ? __ia32_sys_dup3+0xb0/0xb0
<4>[  473.115569]  ? rwlock_bug.part.0+0x90/0x90
<4>[  473.115590]  ksys_ioctl+0x35/0x70
<4>[  473.115597]  ? lockdep_hardirqs_off+0x1cb/0x2b0
<4>[  473.115608]  __x64_sys_ioctl+0x6a/0xb0
<4>[  473.115614]  ? lockdep_hardirqs_on+0x342/0x590
<4>[  473.115623]  do_syscall_64+0x97/0x400
<4>[  473.115633]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[  473.115641] RIP: 0033:0x7fce590d55d7
<4>[  473.115649] Code: b3 66 90 48 8b 05 b1 48 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 81 48 2d 00 f7 d8 64 89 01 48
<4>[  473.115655] RSP: 002b:00007fce4d525ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
<4>[  473.115662] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fce590d55d7
<4>[  473.115667] RDX: 00007fce4d525c10 RSI: 00000000c010645b RDI: 0000000000000007
<4>[  473.115672] RBP: 00007fce4d525c10 R08: 00007fce4d526700 R09: 00007fce4d526700
<4>[  473.115677] R10: 0000000000000054 R11: 0000000000000246 R12: 00000000c010645b
<4>[  473.115682] R13: 0000000000000007 R14: 0000000000000000 R15: 00007ffe0e4a7450

<3>[  473.115731] Allocated by task 1541:
<4>[  473.115766]  kmem_cache_alloc+0xce/0x290
<4>[  473.115895]  i915_gem_object_create.part.28+0x1c/0x4b0 [i915]
<4>[  473.116000]  i915_gem_create+0xe3/0x1f0 [i915]
<4>[  473.116008]  drm_ioctl_kernel+0x192/0x260
<4>[  473.116013]  drm_ioctl+0x67c/0x960
<4>[  473.116020]  do_vfs_ioctl+0x18d/0xfa0
<4>[  473.116026]  ksys_ioctl+0x35/0x70
<4>[  473.116032]  __x64_sys_ioctl+0x6a/0xb0
<4>[  473.116038]  do_syscall_64+0x97/0x400
<4>[  473.116044]  entry_SYSCALL_64_after_hwframe+0x49/0xbe

<3>[  473.116071] Freed by task 1542:
<4>[  473.116101]  kmem_cache_free+0xb7/0x2f0
<4>[  473.116205]  __i915_gem_free_objects+0x7d4/0xe10 [i915]
<4>[  473.116311]  i915_gem_create_ioctl+0xaa/0xd0 [i915]
<4>[  473.116318]  drm_ioctl_kernel+0x192/0x260
<4>[  473.116323]  drm_ioctl+0x67c/0x960
<4>[  473.116330]  do_vfs_ioctl+0x18d/0xfa0
<4>[  473.116335]  ksys_ioctl+0x35/0x70
<4>[  473.116341]  __x64_sys_ioctl+0x6a/0xb0
<4>[  473.116347]  do_syscall_64+0x97/0x400
<4>[  473.116354]  entry_SYSCALL_64_after_hwframe+0x49/0xbe

Testcase: igt/gem_flink_race/flink_close
Fixes: e163484afa ("drm/i915: Update size upon return from GEM_CREATE")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190417132507.27133-1-chris@chris-wilson.co.uk
2019-04-17 14:54:25 +01:00
YueHaibing
d48ae1f053 drm/lima: Make lima_sched_ops static
Fix sparse warning:

drivers/gpu/drm/lima/lima_sched.c:356:36: warning:
 symbol 'lima_sched_ops' was not declared. Should it be static?

Fixes: a1d2a63399 ("drm/lima: driver for ARM Mali4xx GPUs")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190416144353.34024-1-yuehaibing@huawei.com
2019-04-17 20:56:40 +08:00
Chris Wilson
769f0dab62 drm/i915: Make workaround verification *optional*
Sometimes the HW doesn't even play fair, and completely forgets about
register writes. Skip verifying known troublemakers.

References: https://bugs.freedesktop.org/show_bug.cgi?id=108954
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190417075657.19456-4-chris@chris-wilson.co.uk
2019-04-17 10:58:20 +01:00