Commit graph

887256 commits

Author SHA1 Message Date
Jani Nikula
53693f02d8 drm/i915/dsi: account for DSC in horizontal timings
When DSC is enabled, we need to adjust the horizontal timings to account
for the compressed (and therefore reduced) link speed.

The compressed frequency ratio simplifies down to the ratio between
compressed and non-compressed bpp.

Bspec: 49263
Suggested-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fecebdc2719dd0c78eaf8f4d3225bb185956d7db.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
38b898810a drm/i915/dsi: use compressed pixel format with DSC
When compression is enabled, configure the DSI transcoder to use
compressed format.

Suggested-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0e58022ce5425560b3b31062c41de385a736c8b1.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
0486513935 drm/i915/dsi: take compression into account in afe_clk()
Pass crtc_state to afe_clk() to be able to take compression into account
in the computation. Once we enable compression, that is.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a698780362b8d6955d115ef8bb6cf1f7aabbee00.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
adf1bd3dfb drm/i915/dsi: use afe_clk() instead of intel_dsi_bitrate()
We'll be expanding afe_clk() to take DSC into account. Switch to using
it where DSC matters. Which is really everywhere that
intel_dsi_bitrate() is currently used in ICL DSI code.

The functional difference is that we round the result closest instead of
down.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b6c52b320daa8aaa0d79618ce714170f8f04ff67.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
54ed6902ca drm/i915/dsi: abstract afe_clk calculation
We'll make more use of it in the future.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0341fdc13260625150315b0b57a4227eb766c50f.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
50003bf50d drm/i915/dsi: set pipe_bpp on ICL configure config
The ICL DSI pipe_bpp currently comes from
compute_baseline_pipe_bpp(). Fix it.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/191f5c4fa5f4af29d4bf7e30bb35f45ce05b33f0.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
fbacb15ea8 drm/i915/dsc: add basic hardware state readout support
Add basic hardware state readout for DSC, and check the most relevant
details in the state checker.

v2:
- check for DSC power before reading its state
- check if source supports DSC at all

As a side effect, this should also get the power domains for the enabled
DSC on takeover, and subsequently disable DSC if it's not needed.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3fb018cf9bd9a4c275aab389b6ec0f2a4e938bb9.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:16 +02:00
Jani Nikula
deaaff4919 drm/i915/dsc: make DSC source support helper generic
Move intel_dp_source_supports_dsc() from intel_dp.c as
intel_dsc_source_support() in intel_vdsc.c. The DSC source support is
more about DSC than about DP, and will be needed for DP independent
code.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6c9f646090913290fb00efd46a4332421bf95930.1575974743.git.jani.nikula@intel.com
2019-12-11 08:16:05 +02:00
Jani Nikula
2d15f3925a drm/i915/dsc: add support for computing and writing PPS for DSI encoders
Add DSI specific computation and transmission to display of PPS.

With hopes that this approach will work for both DP and DSI encoders.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/461db10b1f4d76625625a9f2b1e3d932fff42799.1575974743.git.jani.nikula@intel.com
2019-12-11 07:40:04 +02:00
Jani Nikula
c42c38ec30 drm/i915/dsc: move slice height calculation to encoder
Turns out this isn't compatible with DSI, where we use the value from
VBT. No functional changes.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3dd689688a51daff26088eaf6feac27f8b9f5ebc.1575974743.git.jani.nikula@intel.com
2019-12-11 07:39:57 +02:00
Jani Nikula
7a7b5be96f drm/i915/dsc: move DP specific compute params to intel_dp.c
Turns out future DSI specific parameters aren't workable with the
approach of having the encoder specific functions in intel_vdsc.c. Make
intel_dsc_compute_params() a helper that does the encoder independent
parts, and have encoder code call it. Move intel_dsc_dp_compute_params()
to intel_dp.c as intel_dp_dsc_compute_params().

No functional changes.

v2: Rename pipe_config to crtc_state while at it.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/620688ec302f7f49cc539c6c1653bfaf6092fce0.1575974743.git.jani.nikula@intel.com
2019-12-11 07:39:53 +02:00
Jani Nikula
1bf2f3bf29 drm/i915/bios: add support for querying DSC details for encoder
Add function for retrieving the DSC data for an encoder.

Initially, this is DSI specific, as DP does not use VBT settings for DSC
at all. It's also not very pretty.

In the future we might have a pointer from encoder to the child device,
which would make the child device list query here so much more sensible.

v3:
- use crtc_state instead of pipe_config
- return true by default from intel_bios_get_dsc_params()
- expand the comment about rc_buffer_block_size and rc_buffer_size

v2:
- make more robust, debug log errors better

Bspec: 29885
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b895c349d964d70e4cad26f12a629ea1898bfcc2.1575974743.git.jani.nikula@intel.com
2019-12-11 07:39:47 +02:00
Jani Nikula
6e0d46e91e drm/i915/bios: parse compression parameters block
Check for child devices that specify compression, and store the device
specific compression parameters in the display device data struct for
later use. Warn if compression is requested but not available.

Use fairly rigid checks for compression data for starters. These can be
made more dynamic later.

Log about DSC presence in DDI port parse, though this is not universal
across platforms or port types (DSI).

v2: amended debug logging

Bspec: 29885
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/357d685ba047faf2285138c2f7014a8dee9a12b7.1575974743.git.jani.nikula@intel.com
2019-12-11 07:39:41 +02:00
Jani Nikula
d1dad6f433 drm/i915/bios: pass devdata to parse_ddi_port
Allow accessing the parent structure later on. Drop const for allowing
future modification as well.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3318b09aaccbbe141e233ca510d581b421259a2a.1575974743.git.jani.nikula@intel.com
2019-12-11 07:39:33 +02:00
Matt Roper
3fa01d642f drm/i915/tgl: Program BW_BUDDY registers during display init
Gen12 can improve bandwidth efficiency by pairing up memory requests
with similar addresses.  We need to program the BW_BUDDY1 and BW_BUDDY2
registers according to the memory configuration during display
initialization to take advantage of this capability.

The magic numbers we program here feel like something that could
definitely change on future platforms, so let's use a table-based
programming scheme to make this easy to extend in the future.

v2:
 - Add separate table for Wa_1409767108.  (Stan)
 - Reorder structure reduce size by a word.  Page mask can still be up
   to 28 bits (even though current values are small) so we should keep
   it as a u32, but just using a u8 for DRAM type instead of the actual
   enum type saves space.  (Lucas, Ville)
 - Rename function to tgl_bw_buddy_init() to be more precise about what
   it does.  (Lucas)

Bspec: 49189
Bspec: 49218
Bspec: 52890
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205224848.76712-1-matthew.d.roper@intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2019-12-10 08:09:25 -08:00
Colin Ian King
1805ec67b1 drm/i915/selftests: fix uninitialized variable sum when summing up values
Currently the variable sum is not uninitialized and hence will cause an
incorrect result in the summation values.  Fix this by initializing
sum to the first item in the summation.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 3c7a44bbbf ("drm/i915/selftests: Perform some basic cycle counting of MI ops")
Signed-off-by: Colin Ian King <colin.king@canonical.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/20191210143205.338308-1-colin.king@canonical.com
2019-12-10 14:35:24 +00:00
Chris Wilson
82c69bf586 drm/i915/gt: Detect if we miss WaIdleLiteRestore
In order to avoid confusing the HW, we must never submit an empty ring
during lite-restore, that is we should always advance the RING_TAIL
before submitting to stay ahead of the RING_HEAD.

Normally this is prevented by keeping a couple of spare NOPs in the
request->wa_tail so that on resubmission we can advance the tail. This
relies on the request only being resubmitted once, which is the normal
condition as it is seen once for ELSP[1] and then later in ELSP[0]. On
preemption, the requests are unwound and the tail reset back to the
normal end point (as we know the request is incomplete and therefore its
RING_HEAD is even earlier).

However, if this w/a should fail we would try and resubmit the request
with the RING_TAIL already set to the location of this request's wa_tail
potentially causing a GPU hang. We can spot when we do try and
incorrectly resubmit without advancing the RING_TAIL and spare any
embarrassment by forcing the context restore.

In the case of preempt-to-busy, we leave the requests running on the HW
while we unwind. As the ring is still live, we cannot rewind our
rq->tail without forcing a reload so leave it set to rq->wa_tail and
only force a reload if we resubmit after a lite-restore. (Normally, the
forced reload will be a part of the preemption event.)

Fixes: 22b7a426bb ("drm/i915/execlists: Preempt-to-busy")
Closes: https://gitlab.freedesktop.org/drm/intel/issues/673
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: stable@kernel.vger.org
Link: https://patchwork.freedesktop.org/patch/msgid/20191209023215.3519970-1-chris@chris-wilson.co.uk
2019-12-10 10:08:07 +00:00
Daniele Ceraolo Spurio
3c9abe886a drm/i915/guc: kill the GuC client
We now only use 1 client without any plan to add more. The client is
also only holding information about the WQ and the process desc, so we
can just move those in the intel_guc structure and always use stage_id
0.

v2: fix comment (John)
v3: fix the comment for real, fix kerneldoc

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205220243.27403-4-daniele.ceraolospurio@intel.com
2019-12-09 13:55:50 -08:00
Daniele Ceraolo Spurio
e9362e1336 drm/i915/guc: kill doorbell code and selftests
Instead of relying on the workqueue, the upcoming reworked GuC
submission flow will offer the host driver indipendent control over
the execution status of each context submitted to GuC. As part of this,
the doorbell usage model has been reworked, with each doorbell being
paired to a single lrc and a doorbell ring representing new work
available for that specific context. This mechanism, however, limits
the number of contexts that can be registered with GuC to the number of
doorbells, which is an undesired limitation. To avoid this limitation,
we requested the GuC team to also provide a H2G that will allow the host
to notify the GuC of work available for a specified lrc, so we can use
that mechanism instead of relying on the doorbells. We can therefore drop
the doorbell code we currently have, also given the fact that in the
unlikely case we'd want to switch back to using doorbells we'd have to
heavily rework it.
The workqueue will still have a use in the new interface to pass special
commands, so that code has been retained for now.

With the doorbells gone and the GuC client becoming even simpler, the
existing GuC selftests don't give us any meaningful coverage so we can
remove them as well. Some selftests might come with the new code, but
they will look different from what we have now so if doesn't seem worth
it to keep the file around in the meantime.

v2: fix comments and commit message (John)

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205220243.27403-3-daniele.ceraolospurio@intel.com
2019-12-09 13:55:44 -08:00
Daniele Ceraolo Spurio
18c094b304 drm/i915/guc: add a helper to allocate and map guc vma
We already have a couple of use-cases in the code and another one will
come in one of the later patches in the series.

v2: use the new function for the CT object as well

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #v1
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205220243.27403-2-daniele.ceraolospurio@intel.com
2019-12-09 13:54:33 -08:00
Daniele Ceraolo Spurio
d54dc6eede drm/i915/guc: Drop leftover preemption code
Remove unused enums and ctx_save_restore_disabled() function, leftover
from the legacy preemption removal.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205220243.27403-1-daniele.ceraolospurio@intel.com
2019-12-09 13:54:28 -08:00
Ville Syrjälä
67e1d5ed85 drm/i915/hdcp: Nuke intel_hdcp_transcoder_config()
intel_hdcp_transcoder_config() is clobbering some globally visible
state in .compute_config(). That is a big no no as .compute_config()
is supposed to have no visible side effects when either the commit
fails or it's just a TEST_ONLY commit.

Inline this stuff into intel_hdcp_enable() so that the state only
gets modified when we actually commit the state to the hardware.

Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Fixes: 39e2df090c ("drm/i915/hdcp: update current transcoder into intel_hdcp")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191204180549.1267-2-ville.syrjala@linux.intel.com
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
2019-12-09 17:49:39 +02:00
Ville Syrjälä
e10ad9c697 drm/i915/fbc: Reallocate cfb if we need more of it
The code assumes we can omit the cfb allocation once fbc
has been enabled once. That's nonsense. Let's try to
reallocate it if we need to.

The code is still a mess, but maybe this is enough to get
fbc going in some cases where it initially underallocates
the cfb and there's no full modeset to fix it up.

Cc: Daniel Drake <drake@endlessm.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-15-ville.syrjala@linux.intel.com
Tested-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:59 +02:00
Ville Syrjälä
34cddbc03b drm/i915/fbc: Enable fbc by default on glk+ once again
Now that we have the glk+ w/a for back to back fbc disable + plane
update in place we can once more enable fbc on glk+ by default.

Cc: Daniel Drake <drake@endlessm.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-14-ville.syrjala@linux.intel.com
Tested-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:59 +02:00
Ville Syrjälä
07fd0df822 drm/i915/fbc: Wait for vblank after FBC disable on glk+
On glk+ the hardware gets confused if we disable FBC while
it's recompressing and we perform a plane update during the
same frame. The result is that top of the screen gets corrupted.

We can avoid that by giving the hardware enough time to finish
the FBC disable before we touch the plane registers. Ie. we need
an extra vblank wait after FBC disable.

v2: Don't do the vblank wait if we never activated FBC in hw

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191128150338.12490-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
6252bb78fc drm/i915/fbc: Start using flip nuke
The hardware automagically nukes the cfb on flip. We can use
that whenever the plane/crtc configuration doesn't change too
much. Let's hook that up.

We'll need this for glk+ since we need to introduce an extra
vblank wait after FBC disable. As we're currently disabling
FBC around all plane updates we'd slow them down by an extra
frame. Not a great user experience when your fps is always
capped at vrefres/2. With flip nuke we don't need the extra
vblank wait.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-12-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
c866a0e416 drm/i915/fbc: Nuke fbc.enabled
fbc.enabled == (fbc.crtc != NULL), so let's just nuke fbc.enabled.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-11-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
31ce20c247 drm/i915/fbc: s/gen9 && !glk/gen9_bc || bxt/
Replace the 'gen9 && !glk' with the slightly more obvious
'gen9_bc || bxt'.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-10-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
30016696c2 drm/i915/fbc: Make fence_id optional for i965gm
i965gm no longer needs the fence for scanout so we should be
do what we do for ctg+ and only configure a fence for FBC
when we have one.

In theory this should do nothing atm on account of
intel_fbc_can_activate() requiring the fence, but since
we do this for g4x+ let's do it for i965gm as well. We
may want to relax the requirements at some point and allow
FBC without a fence.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-9-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
97a978e2d3 drm/i915/fbc: Store fence_id directly in fbc cache/params
Rather than playing around with vma+flags let's just grab
the fence id from within and stash that directly in the fbc
cache/params.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-8-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
8bdbe1befd drm/i915/fbc: Track plane visibility
Currently the code (ab)uses cache->vma to indicate the plane
visibility. I want to nuke that so let's add a dedicated boolean
for this.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-7-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
6f745ba696 drm/i915/fbc: Precompute gen9 cfb stride w/a
Precompute the override cfb stride value so that we can check
it when determining if flip nuke can be used or not.

The hardware has 13 bits for this, so we can shrink the storage
to u16 while at it.

v2: Don't explode when crtc_state->enable_fbc lies to us

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-6-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
644398586f drm/i915/fbc: Remove the FBC_RT_BASE setup for ILK/SNB
We don't want to use the FBC hardware render tracking so let's not
enable it. To use the hw tracking properly we'd anyway need to
integrate this into the command submissing path as the register is
context saved, and if rendering happens via the ppgtt we'd have
to configure it with the ppgtt address instead of the ggtt address.
Easier to use software tracking instead.

Note that on pre-ilk we can't actually disable render tracking.
However we can't rely on it because it requires that DSPSURF to
match the render target address, and since we play tricks
with DSPSURF that may not be the case. Hence we shall rely on
software render tracking on all platforms.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-5-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
04da7b9f9a drm/i915: Relocate intel_crtc_active()
Move intel_crtc_active() next to its only remaining
user (pre-g4x wm code).

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-4-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
fb2d8e0cd4 drm/i915/fbc: Nuke bogus single pipe fbc1 restriction
Not sure where the single pipe only restriction came for fbc1.
Nothing I can see that would prevent this.

v2: Nuke no_fbc_on_multiple_pipes() too

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-3-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Ville Syrjälä
cd8c021b36 drm/i915/fbc: Disable fbc by default on all glk+
We're missing a workaround in the fbc code for all glk+ platforms
which can cause corruption around the top of the screen. So
enabling fbc by default is a bad idea. I'm not keen to backport
the w/a so let's start by disabling fbc by default on all glk+.
We'll lift the restriction once the w/a is in place.

Cc: stable@vger.kernel.org
Cc: Daniel Drake <drake@endlessm.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jian-Hong Pan <jian-hong@endlessm.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127201222.16669-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2019-12-09 16:10:58 +02:00
Umesh Nerlige Ramappa
ccdeed4970 drm/i915/perf: Configure OAR for specific context
Gen12 supports saving/restoring render counters per context. Apply OAR
configuration only for the context that is passed in to perf.

v2:
- Fix OACTXCONTROL value to only stop/resume counters.
- Remove gen12_update_reg_state_unlocked as power state is already
  applied by the caller.

v3: (Lionel)
- Move register initialization into the array
- Assume a valid oa_config in enable_metric_set

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Fixes: 00a7f0d715 ("drm/i915/tgl: Add perf support on TGL")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191206194339.31356-2-umesh.nerlige.ramappa@intel.com
2019-12-09 15:38:17 +02:00
Umesh Nerlige Ramappa
322d56aa31 drm/i915/perf: Allow non-privileged access when OA buffer is not sampled
SAMPLE_OA_REPORT enables sampling of OA reports from the OA buffer.
Since reports from OA buffer had system wide visibility, collecting
samples from the OA buffer was a privileged operation on previous
platforms. Prior to TGL, it was also necessary to sample the OA buffer
to normalize reports from MI REPORT PERF COUNT.

TGL has a dedicated OAR unit to sample perf reports for a specific
render context. This removes the necessity to sample OA buffer.

- If not sampling the OA buffer, allow non-privileged access. An earlier
  patch allows the non-privilege access:
  https://patchwork.freedesktop.org/patch/337716/?series=68582&rev=1
- Clear up the path for non-privileged access in this patch

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Fixes: 00a7f0d715 ("drm/i915/tgl: Add perf support on TGL")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191206194339.31356-1-umesh.nerlige.ramappa@intel.com
2019-12-09 15:38:16 +02:00
Chris Wilson
d3e483526c drm/i915: Change i915_vma_unbind() to report -EAGAIN on activity
If someone else acquires the i915_vma before we complete our wait and
unbind it, we currently error out with -EBUSY. Use -EAGAIN instead so
that if necessary the caller is prepared to try again.

Closes: https://gitlab.freedesktop.org/drm/intel/issues/683
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191208161252.3015727-2-chris@chris-wilson.co.uk
2019-12-09 11:49:57 +00:00
Chris Wilson
16c46fd505 drm/i915/gem: Avoid rcu_barrier() from shrinker paths
As i915_gem_object_unbind() waits on an rcu_barrier() to flush vm
releases (and destruction of their bound vma), we have to be careful not
to invoke that barrier from beneath the shrinker:

<4> [430.222671] WARNING: possible circular locking dependency detected
<4> [430.222673] 5.4.0-rc8-CI-CI_DRM_7508+ #1 Tainted: G     U
<4> [430.222675] ------------------------------------------------------
<4> [430.222677] gem_pwrite/2317 is trying to acquire lock:
<4> [430.222678] ffffffff82248218 (rcu_state.barrier_mutex){+.+.}, at: rcu_barrier+0x23/0x190
<4> [430.222685]
but task is already holding lock:
<4> [430.222687] ffffffff82263a40 (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.117+0x0/0x30
<4> [430.222691]
which lock already depends on the new lock.

<4> [430.222693]
the existing dependency chain (in reverse order) is:
<4> [430.222695]
-> #2 (fs_reclaim){+.+.}:
<4> [430.222698]        fs_reclaim_acquire.part.117+0x24/0x30
<4> [430.222702]        kmem_cache_alloc_trace+0x2a/0x2c0
<4> [430.222705]        intel_cpuc_prepare+0x37/0x1a0
<4> [430.222709]        cpuhp_invoke_callback+0x9b/0x9d0
<4> [430.222712]        _cpu_up+0xa2/0x140
<4> [430.222714]        do_cpu_up+0x61/0xa0
<4> [430.222718]        smp_init+0x57/0x96
<4> [430.222722]        kernel_init_freeable+0xac/0x1c7
<4> [430.222725]        kernel_init+0x5/0x100
<4> [430.222728]        ret_from_fork+0x24/0x50
<4> [430.222729]
-> #1 (cpu_hotplug_lock.rw_sem){++++}:
<4> [430.222733]        cpus_read_lock+0x34/0xd0
<4> [430.222734]        rcu_barrier+0xaa/0x190
<4> [430.222736]        kernel_init+0x21/0x100
<4> [430.222737]        ret_from_fork+0x24/0x50
<4> [430.222739]
-> #0 (rcu_state.barrier_mutex){+.+.}:
<4> [430.222742]        __lock_acquire+0x1328/0x15d0
<4> [430.222743]        lock_acquire+0xa7/0x1c0
<4> [430.222746]        __mutex_lock+0x9a/0x9d0
<4> [430.222747]        rcu_barrier+0x23/0x190
<4> [430.222850]        i915_gem_object_unbind+0x264/0x3d0 [i915]
<4> [430.222882]        i915_gem_shrink+0x297/0x5f0 [i915]
<4> [430.222912]        i915_gem_shrink_all+0x38/0x60 [i915]
<4> [430.222934]        i915_drop_caches_set+0x1f0/0x240 [i915]
<4> [430.222938]        simple_attr_write+0xb0/0xd0
<4> [430.222941]        full_proxy_write+0x51/0x80
<4> [430.222943]        vfs_write+0xb9/0x1d0
<4> [430.222944]        ksys_write+0x9f/0xe0
<4> [430.222946]        do_syscall_64+0x4f/0x210
<4> [430.222948]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [430.222950]
other info that might help us debug this:

<4> [430.222952] Chain exists of:
  rcu_state.barrier_mutex --> cpu_hotplug_lock.rw_sem --> fs_reclaim

<4> [430.222955]  Possible unsafe locking scenario:

<4> [430.222957]        CPU0                    CPU1
<4> [430.222958]        ----                    ----
<4> [430.222960]   lock(fs_reclaim);
<4> [430.222961]                                lock(cpu_hotplug_lock.rw_sem);
<4> [430.222963]                                lock(fs_reclaim);
<4> [430.222964]   lock(rcu_state.barrier_mutex);
<4> [430.222966]
 *** DEADLOCK ***

<4> [430.222968] 3 locks held by gem_pwrite/2317:
<4> [430.222969]  #0: ffff88849e2d9408 (sb_writers#14){.+.+}, at: vfs_write+0x1a4/0x1d0
<4> [430.222973]  #1: ffff888496976db0 (&attr->mutex){+.+.}, at: simple_attr_write+0x36/0xd0
<4> [430.222976]  #2: ffffffff82263a40 (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.117+0x0/0x30
<4> [430.222980]
stack backtrace:
<4> [430.222982] CPU: 1 PID: 2317 Comm: gem_pwrite Tainted: G     U            5.4.0-rc8-CI-CI_DRM_7508+ #1
<4> [430.222985] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.R00.2321.A08.1909162051 09/16/2019
<4> [430.222989] Call Trace:
<4> [430.222992]  dump_stack+0x71/0x9b
<4> [430.222995]  check_noncircular+0x19b/0x1c0
<4> [430.222998]  ? __lock_acquire+0x1328/0x15d0
<4> [430.222999]  __lock_acquire+0x1328/0x15d0
<4> [430.223001]  ? mark_held_locks+0x49/0x70
<4> [430.223003]  lock_acquire+0xa7/0x1c0
<4> [430.223005]  ? rcu_barrier+0x23/0x190
<4> [430.223008]  __mutex_lock+0x9a/0x9d0
<4> [430.223009]  ? rcu_barrier+0x23/0x190
<4> [430.223011]  ? rcu_barrier+0x23/0x190
<4> [430.223013]  ? find_held_lock+0x2d/0x90
<4> [430.223045]  ? i915_gem_object_unbind+0x24a/0x3d0 [i915]
<4> [430.223048]  ? rcu_barrier+0x23/0x190
<4> [430.223049]  rcu_barrier+0x23/0x190
<4> [430.223081]  i915_gem_object_unbind+0x264/0x3d0 [i915]
<4> [430.223119]  i915_gem_shrink+0x297/0x5f0 [i915]

Closes: https://gitlab.freedesktop.org/drm/intel/issues/743
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191208161252.3015727-1-chris@chris-wilson.co.uk
2019-12-09 10:49:38 +00:00
Chris Wilson
7240497850 drm/i915: Flesh out device_info pretty printer
Include all the number fields for describing the GT, as well as the
current boolean flags, primarily for inclusion in error states.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191207182937.2583002-1-chris@chris-wilson.co.uk
2019-12-09 09:58:51 +00:00
Chris Wilson
8d65859a4c drm/i915/gem: Comment on inability to check args.pad for MMAP_OFFSET
Since we didn't check and insist that args.pad must be zero for MMAP_GTT
historically, we cannot insert a check now as old userspace may be
feeding in garbage. As such the lack of check is enshrined into the ABI,
so add a comment to remind us we cannot add the check later.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191207222644.2830129-1-chris@chris-wilson.co.uk
2019-12-09 09:57:57 +00:00
Linus Torvalds
e42617b825 Linux 5.5-rc1 2019-12-08 14:57:55 -08:00
Linus Torvalds
95e6ba5133 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) More jumbo frame fixes in r8169, from Heiner Kallweit.

 2) Fix bpf build in minimal configuration, from Alexei Starovoitov.

 3) Use after free in slcan driver, from Jouni Hogander.

 4) Flower classifier port ranges don't work properly in the HW offload
    case, from Yoshiki Komachi.

 5) Use after free in hns3_nic_maybe_stop_tx(), from Yunsheng Lin.

 6) Out of bounds access in mqprio_dump(), from Vladyslav Tarasiuk.

 7) Fix flow dissection in dsa TX path, from Alexander Lobakin.

 8) Stale syncookie timestampe fixes from Guillaume Nault.

[ Did an evil merge to silence a warning introduced by this pull - Linus ]

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
  r8169: fix rtl_hw_jumbo_disable for RTL8168evl
  net_sched: validate TCA_KIND attribute in tc_chain_tmplt_add()
  r8169: add missing RX enabling for WoL on RTL8125
  vhost/vsock: accept only packets with the right dst_cid
  net: phy: dp83867: fix hfs boot in rgmii mode
  net: ethernet: ti: cpsw: fix extra rx interrupt
  inet: protect against too small mtu values.
  gre: refetch erspan header from skb->data after pskb_may_pull()
  pppoe: remove redundant BUG_ON() check in pppoe_pernet
  tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE()
  tcp: tighten acceptance of ACKs not matching a child socket
  tcp: fix rejected syncookies due to stale timestamps
  lpc_eth: kernel BUG on remove
  tcp: md5: fix potential overestimation of TCP option space
  net: sched: allow indirect blocks to bind to clsact in TC
  net: core: rename indirect block ingress cb function
  net-sysfs: Call dev_hold always in netdev_queue_add_kobject
  net: dsa: fix flow dissection on Tx path
  net/tls: Fix return values to avoid ENOTSUPP
  net: avoid an indirect call in ____sys_recvmsg()
  ...
2019-12-08 13:28:11 -08:00
Linus Torvalds
138f371ddf SCSI misc on 20191207
11 patches, all in drivers (no core changes) that are either minor
 cleanups or small fixes.  They were late arriving, but still safe for
 -rc1.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "Eleven patches, all in drivers (no core changes) that are either minor
  cleanups or small fixes.

  They were late arriving, but still safe for -rc1"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: MAINTAINERS: Add the linux-scsi mailing list to the ISCSI entry
  scsi: megaraid_sas: Make poll_aen_lock static
  scsi: sd_zbc: Improve report zones error printout
  scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
  scsi: qla2xxx: unregister ports after GPN_FT failure
  scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
  scsi: pm80xx: Remove unused include of linux/version.h
  scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3
  scsi: scsi_transport_sas: Fix memory leak when removing devices
  scsi: lpfc: size cpu map by last cpu id set
  scsi: ibmvscsi_tgt: Remove unneeded variable rc
2019-12-08 12:23:42 -08:00
Linus Torvalds
a78f7cdddb 9 cifs/smb3 fixes: two timestamp fixes, one oops fix (during oplock break) for stable, two fixes found in multichannel testing, two fixes for file create when using modeforsid mount parm
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Merge tag '5.5-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Nine cifs/smb3 fixes:

   - one fix for stable (oops during oplock break)

   - two timestamp fixes including important one for updating mtime at
     close to avoid stale metadata caching issue on dirty files (also
     improves perf by using SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB over the
     wire)

   - two fixes for "modefromsid" mount option for file create (now
     allows mode bits to be set more atomically and accurately on create
     by adding "sd_context" on create when modefromsid specified on
     mount)

   - two fixes for multichannel found in testing this week against
     different servers

   - two small cleanup patches"

* tag '5.5-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: improve check for when we send the security descriptor context on create
  smb3: fix mode passed in on create for modetosid mount option
  cifs: fix possible uninitialized access and race on iface_list
  cifs: Fix lookup of SMB connections on multichannel
  smb3: query attributes on file close
  smb3: remove unused flag passed into close functions
  cifs: remove redundant assignment to pointer pneg_ctxt
  fs: cifs: Fix atime update check vs mtime
  CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks
2019-12-08 12:12:18 -08:00
Linus Torvalds
5bf9a06a5f Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs cleanups from Al Viro:
 "No common topic, just three cleanups".

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  make __d_alloc() static
  fs/namespace: add __user to open_tree and move_mount syscalls
  fs/fnctl: fix missing __user in fcntl_rw_hint()
2019-12-08 11:08:28 -08:00
Chris Wilson
d634110007 drm/i915/gt: Turn vm off then on again for gen7 mm switch
"Have you tried switching it off and on again?"

Set the size of the mm to 0 to disable all PD cachelines, before
enabling the whole mm again. Let's see if that tricks the TLB into
reloading.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191208143648.2986669-1-chris@chris-wilson.co.uk
2019-12-08 15:19:02 +00:00
Linus Torvalds
9455d25f4e Add Hygon Device ID to the AMD NTB device driver
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Merge tag 'ntb-5.5' of git://github.com/jonmason/ntb

Pull NTB update from Jon Mason:
 "Just a simple patch to add a new Hygon Device ID to the AMD NTB device
  driver"

* tag 'ntb-5.5' of git://github.com/jonmason/ntb:
  NTB: Add Hygon Device ID
2019-12-07 18:38:17 -08:00
Linus Torvalds
737214515d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input updates from Dmitry Torokhov:

 - fixups for Synaptics RMI4 driver

 - a quirk for Goodinx touchscreen on Teclast tablet

 - a new keycode definition for activating privacy screen feature found
   on a few "enterprise" laptops

 - updates to snvs_pwrkey driver

 - polling uinput device for writing (which is always allowed) now works

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers
  Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash
  Input: goodix - add upside-down quirk for Teclast X89 tablet
  Input: add privacy screen toggle keycode
  Input: uinput - fix returning EPOLLOUT from uinput_poll
  Input: snvs_pwrkey - remove gratuitous NULL initializers
  Input: snvs_pwrkey - send key events for i.MX6 S, DL and Q
2019-12-07 18:33:01 -08:00