Граф коммитов

347 Коммитов

Автор SHA1 Сообщение Дата
Thomas Zimmermann 8ff5446a7c drm/i915: Remove references to struct drm_device.pdev
Using struct drm_device.pdev is deprecated. Convert i915 to struct
drm_device.dev. No functional changes.

v6:
	* also remove assignment in selftests/ in a later patch (Chris)
v5:
	* remove assignment in later patch (Chris)
v3:
	* rebased
v2:
	* move gt/ and gvt/ changes into separate patches

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210128133127.2311-2-tzimmermann@suse.de
2021-02-02 13:58:42 +02:00
Jani Nikula 0f69403d25 Merge drm/drm-next into drm-intel-next-queued
Catch up with upstream, in particular to get c1e8d7c6a7 ("mmap locking
API: convert mmap_sem comments").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-06-25 18:05:03 +03:00
Pankaj Bharadiya 649c10ff85 drm/i915/runtime_pm: Prefer drm_WARN* over WARN*
struct drm_device specific drm_WARN* macros include device information
in the backtrace, so we know what device the warnings originate from.

Prefer drm_WARN* over WARN*.

Conversion is done with below semantic patch:

@@
identifier func, T;
@@
func(struct intel_runtime_pm *T,...) {
+ struct drm_i915_private *i915 = container_of(T, struct drm_i915_private, runtime_pm);
<+...
(
-WARN(
+drm_WARN(&i915->drm,
...)
|
-WARN_ON(
+drm_WARN_ON(&i915->drm,
...)
|
-WARN_ONCE(
+drm_WARN_ONCE(&i915->drm,
...)
|
-WARN_ON_ONCE(
+drm_WARN_ON_ONCE(&i915->drm,
...)
)
...+>

}

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200504181600.18503-10-pankaj.laxminarayan.bharadiya@intel.com
2020-05-19 16:01:40 +03:00
Rafael J. Wysocki e07515563d PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP
Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
matches its purpose more closely.

No functional impact.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # for PCI parts
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-24 21:33:09 +02:00
Jani Nikula 4fb8783165 drm/i915/display: abstract all vgaarb access to intel_vga.[ch]
Split out the code related to vga client and vgaarb all over the place
into new intel_vga.[ch]. No functional changes.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191001152506.7854-1-jani.nikula@intel.com
2019-10-02 13:31:54 +03:00
Jani Nikula a09d9a8002 drm/i915: avoid including intel_drv.h via i915_drv.h->i915_trace.h
Disentangle i915_drv.h from intel_drv.h, which gets included via
i915_trace.h. This necessitates including i915_trace.h wherever it's
needed.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ed82bf259d3b725a1a1a3c3e9d6fb5c08bc4d489.1565085691.git.jani.nikula@intel.com
2019-08-07 12:43:14 +03:00
Janusz Krzysztofik 3b58a94551 drm/i915: Propagate "_release" function name suffix down
Replace mixed "_fini"/"_cleanup"/"_cleanup_hw" suffixes found in names
of functions called from i915_driver_release() with "_release" suffix
consistently.  This provides better code readability, especially
helpful when trying to work out which phase the code is in.

Functions names starting with "i915_driver_", i.e., those defined in
drivers/gpu/dri/i915/i915_drv.c, just have their "cleanup" or "fini"
parts of their names replaced with the "_release" suffix, while names
of functions coming from other source files have been suffixed with
"_driver_release" to avoid ambiguity with other possible .release entry
points.

v2: early_probe pairs better with late_release (Chris)
v3: fix typo in commit message (Joonas)

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190712112429.740-5-janusz.krzysztofik@linux.intel.com
2019-07-12 13:05:05 +01:00
Mika Kuoppala c5f846eed2 drm/i915: Fix memleak in runtime wakeref tracking
If we untrack wakerefs, the actual count may reach zero.
However the krealloced owners array is still there and
needs to be taken care of. Free the owners unconditionally
to fix the leak.

Fixes: bd780f37a3 ("drm/i915: Track all held rpm wakerefs")
Reported-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Cc: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.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/20190701104442.9319-1-mika.kuoppala@linux.intel.com
2019-07-02 16:00:20 +01:00
Daniele Ceraolo Spurio d858d5695f drm/i915: update rpm_get/put to use the rpm structure
The functions where internally already only using the structure, so we
need to just flip the interface.

v2: rebase

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613232156.34940-7-daniele.ceraolospurio@intel.com
2019-06-14 15:58:33 +01:00
Daniele Ceraolo Spurio 69c6635544 drm/i915: move a few more functions to accept the rpm structure
Focusing on the functions called in few places.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613232156.34940-6-daniele.ceraolospurio@intel.com
2019-06-14 15:58:33 +01:00
Daniele Ceraolo Spurio 1bf676cc2d drm/i915: move and rename i915_runtime_pm
Asserts aside, all the code working on this structure is in
intel_runtime_pm.c and uses the intel_ prefix, so move the
structure to intel_runtime_pm.h and adopt the same prefix.

Since all the asserts are now working on the runtime_pm structure,
bring them across as well.

v2: drop unneeded include (Chris), don't rename debugfs, rebase

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613232156.34940-5-daniele.ceraolospurio@intel.com
2019-06-14 15:58:33 +01:00
Daniele Ceraolo Spurio 87b391b951 drm/i915: Remove rpm asserts that use i915
Quite a few of the call points have already switched to the version
working directly on the runtime_pm structure, so let's switch over the
rest and kill the i915-based asserts.

v2: rebase

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613232156.34940-3-daniele.ceraolospurio@intel.com
2019-06-14 15:58:33 +01:00
Daniele Ceraolo Spurio d5b6c275d0 drm/i915: prefer i915_runtime_pm in intel_runtime function
As a first step towards updating the code to work on the runtime_pm
structure instead of i915, rework all the internals to use and pass
around that.

v2: add comment for kdev (Jani), move rpm init after pdev init for
mock_device

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613232156.34940-2-daniele.ceraolospurio@intel.com
2019-06-14 15:58:33 +01:00
Jani Nikula affa22b5f0 drm/i915: fix documentation build warnings
Just a straightforward bag of fixes for a clean htmldocs build.

Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190605095657.23601-2-jani.nikula@intel.com
2019-06-06 11:13:20 +03:00
Daniele Ceraolo Spurio 7645b19d9b drm/i915: extract intel_display_power.h/c from intel_runtime_pm.h/c
Keep all the device-level PM management in intel_runtime_pm.h/c and move
all the display specific bits into their own file. Also add the new
header to Makefile.header-test.

Apart from the giant code move, the only difference is with the
intel_runtime_<get/put>_raw() functions, which are now exposed in the
header. The _put() version is also not conditionally compiled anymore
since it is ok to always pass the wakeref taken from the _get() to
__intel_runtime_pm_put (it is -1 if tracking is disabled).

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@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/20190531222409.9177-2-daniele.ceraolospurio@intel.com
2019-06-04 08:32:48 +01:00
Dave Airlie 14ee642c2a Features:
- Engine discovery query (Tvrtko)
 - Support for DP YCbCr4:2:0 outputs (Gwan-gyeong)
 - HDCP revocation support, refactoring (Ramalingam)
 - Remove DRM_AUTH from IOCTLs which also have DRM_RENDER_ALLOW (Christian König)
 - Asynchronous display power disabling (Imre)
 - Perma-pin uC firmware and re-enable global reset (Fernando)
 - GTT remapping for display, for bigger fb size and stride (Ville)
 - Enable pipe HDR mode on ICL if only HDR planes are used (Ville)
 - Kconfig to tweak the busyspin durations for i915_wait_request (Chris)
 - Allow multiple user handles to the same VM (Chris)
 - GT/GEM runtime pm improvements using wakerefs (Chris)
 - Gen 4&5 render context support (Chris)
 - Allow userspace to clone contexts on creation (Chris)
 - SINGLE_TIMELINE flags for context creation (Chris)
 - Allow specification of parallel execbuf (Chris)
 
 Refactoring:
 - Header refactoring (Jani)
 - Move GraphicsTechnology files under gt/ (Chris)
 - Sideband code refactoring (Chris)
 
 Fixes:
 - ICL DSI state readout and checker fixes (Vandita)
 - GLK DSI picture corruption fix (Stanislav)
 - HDMI deep color fixes (Clinton, Aditya)
 - Fix driver unbinding from a device in use (Janusz)
 - Fix clock gating with pipe scaling (Radhakrishna)
 - Disable broken FBC on GLK (Daniel Drake)
 - Miscellaneous GuC fixes (Michal)
 - Fix MG PHY DP register programming (Imre)
 - Add missing combo PHY lane power setup (Imre)
 - Workarounds for early ICL VBT issues (Imre)
 - Fix fastset vs. pfit on/off on HSW EDP transcoder (Ville)
 - Add readout and state check for pch_pfit.force_thru (Ville)
 - Miscellaneous display fixes and refactoring (Ville)
 - Display workaround fixes (Ville)
 - Enable audio even if ELD is bogus (Ville)
 - Fix use-after-free in reporting create.size (Chris)
 - Sideband fixes to avoid BYT hard lockups (Chris)
 - Workaround fixes and improvements (Chris)
 
 Maintainer shortcomings:
 - Failure to adequately describe and give credit for all changes (Jani)
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Merge tag 'drm-intel-next-2019-05-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Features:
- Engine discovery query (Tvrtko)
- Support for DP YCbCr4:2:0 outputs (Gwan-gyeong)
- HDCP revocation support, refactoring (Ramalingam)
- Remove DRM_AUTH from IOCTLs which also have DRM_RENDER_ALLOW (Christian König)
- Asynchronous display power disabling (Imre)
- Perma-pin uC firmware and re-enable global reset (Fernando)
- GTT remapping for display, for bigger fb size and stride (Ville)
- Enable pipe HDR mode on ICL if only HDR planes are used (Ville)
- Kconfig to tweak the busyspin durations for i915_wait_request (Chris)
- Allow multiple user handles to the same VM (Chris)
- GT/GEM runtime pm improvements using wakerefs (Chris)
- Gen 4&5 render context support (Chris)
- Allow userspace to clone contexts on creation (Chris)
- SINGLE_TIMELINE flags for context creation (Chris)
- Allow specification of parallel execbuf (Chris)

Refactoring:
- Header refactoring (Jani)
- Move GraphicsTechnology files under gt/ (Chris)
- Sideband code refactoring (Chris)

Fixes:
- ICL DSI state readout and checker fixes (Vandita)
- GLK DSI picture corruption fix (Stanislav)
- HDMI deep color fixes (Clinton, Aditya)
- Fix driver unbinding from a device in use (Janusz)
- Fix clock gating with pipe scaling (Radhakrishna)
- Disable broken FBC on GLK (Daniel Drake)
- Miscellaneous GuC fixes (Michal)
- Fix MG PHY DP register programming (Imre)
- Add missing combo PHY lane power setup (Imre)
- Workarounds for early ICL VBT issues (Imre)
- Fix fastset vs. pfit on/off on HSW EDP transcoder (Ville)
- Add readout and state check for pch_pfit.force_thru (Ville)
- Miscellaneous display fixes and refactoring (Ville)
- Display workaround fixes (Ville)
- Enable audio even if ELD is bogus (Ville)
- Fix use-after-free in reporting create.size (Chris)
- Sideband fixes to avoid BYT hard lockups (Chris)
- Workaround fixes and improvements (Chris)

Maintainer shortcomings:
- Failure to adequately describe and give credit for all changes (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87sgt3n45z.fsf@intel.com
2019-05-28 09:26:52 +10:00
Imre Deak 08d8e17005 drm/i915: Replace use of PLLS power domain with DISPLAY_CORE domain
There isn't a separate power domain specific to PLLs. When programming
them we require the same power domain to be enabled which is needed when
accessing other display core parts (not specific to any
pipe/port/transcoder). This corresponds to the DISPLAY_CORE domain added
previously in this patchset, so use that instead to save bits in the
power domain mask.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509173446.31095-10-imre.deak@intel.com
2019-05-14 14:06:30 +03:00
Imre Deak 6cfe7ec02e drm/i915: Remove the unneeded AUX power ref from intel_dp_detect()
We don't need the AUX power for the whole duration of the detect, only
when we're doing AUX transfers. The AUX transfer function takes its own
reference on the AUX power domain already. The two places during detect
which access display core registers (not specific to a
pipe/port/transcoder) only need the power domain that is required for
that access. That power domain is equivalent to the device global power
domain on most platforms (enabled whenever we hold a runtime PM
reference) except on CHV/VLV where it's equivalent to the display power
well.

Add a new power domain that reflects the above, and use this at the two
spots accessing registers. With that we can avoid taking the AUX
reference for the whole duration of the detect function.

Put the domains asynchronously to avoid the unneeded on-off-on toggling.

Also adapt the idea from with_intel_runtime_pm et al. for making it easy
to write short sequences where a display power ref is needed.

v2: (Ville)
- Add with_intel_display_power() helper to simplify things.
- s/bool res/bool is_connected/

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509173446.31095-8-imre.deak@intel.com
2019-05-14 14:06:30 +03:00
Imre Deak e0da2d63ab drm/i915: Add support for asynchronous display power disabling
By disabling a power domain asynchronously we can restrict holding a
reference on that power domain to the actual code sequence that
requires the power to be on for the HW access it's doing, by also
avoiding unneeded on-off-on togglings of the power domain (since the
disabling happens with a delay).

One benefit is potential power saving due to the following two reasons:
1. The fact that we will now be holding the reference only for the
   necessary duration by the end of the patchset. While simply not
   delaying the disabling has the same benefit, it has the problem that
   frequent on-off-on power switching has its own power cost (see the 2.
   point below) and the debug trace for power well on/off events will
   cause a lot of dmesg spam (see details about this further below).
2. Avoiding the power cost of freuqent on-off-on power switching. This
   requires us to find the optimal disabling delay based on the measured
   power cost of on->off and off->on switching of each power well vs.
   the power of keeping the given power well on.

   In this patchset I'm not providing this optimal delay for two
   reasons:
   a) I don't have the means yet to perform the measurement (with high
      enough signal-to-noise ratio, or with the help of an energy
      counter that takes switching into account). I'm currently looking
      for a way to measure this.

   b) Before reducing the disabling delay we need an alternative way for
      debug tracing powerwell on/off events. Simply avoiding/throttling
      the debug messages is not a solution, see further below.

   Note that even in the case where we can't measure any considerable
   power cost of frequent on-off switching of powerwells, it still would
   make sense to do the disabling asynchronously (with 0 delay) to avoid
   blocking on the disabling. On VLV I measured this disabling time
   overhead to be 1ms on average with a worst case of 4ms.

In the case of the AUX power domains on ICL we would also need to keep
the sequence where we hold the power reference short, the way it would
be by the end of this patchset where we hold it only for the actual AUX
transfer. Anything else would make the locking we need for ICL TypeC
ports (whenever we hold a reference on any AUX power domain) rather
problematic, adding for instance unnecessary lockdep dependencies to
the required TypeC port lock.

I chose the disabling delay to be 100msec for now to avoid the unneeded
toggling (and so not to introduce dmesg spamming) in the DP MST sideband
signaling code. We could optimize this delay later, once we have the
means to measure the switching power cost (see above).

Note that simply removing/throttling the debug tracing for power well
on/off events is not a solution. We need to know the exact spots of
these events and cannot rely only on incorrect register accesses caught
(due to not holding a wakeref at the time of access). Incorrect
powerwell enabling/disabling could lead to other problems, for instance
we need to keep certain powerwells enabled for the duration of modesets
and AUX transfers.

v2:
- Clarify the commit log parts about power cost measurement and the
  problem of simply removing/throttling debug tracing. (Chris)
- Optimize out local wakeref vars at intel_runtime_pm_put_raw() and
  intel_display_power_put_async() call sites if
  CONFIG_DRM_I915_DEBUG_RUNTIME_PM=n. (Chris)
- Rebased on v2 of the wakeref w/o power-on guarantee patch.
- Add missing docbook headers.
v3:
- Checkpatch spelling/missing-empty-line fix.
v4:
- Fix unintended local wakeref var optimization when using
  call-arguments with side-effects, by using inline funcs instead of
  macros. In this patch in particular this will fix the
  intel_display_power_grab_async_put_ref()->intel_runtime_pm_put_raw()
  call).

  No size change in practice (would be the same disregarding the
  corresponding change in intel_display_power_grab_async_put_ref()):
  $ size i915-macro.ko
     text	   data	    bss	    dec	    hex	filename
  2455190	 105890	  10272	2571352	 273c58	i915-macro.ko
  $ size i915-inline.ko
     text	   data	    bss	    dec	    hex	filename
  2455195	 105890	  10272	2571357	 273c5d	i915-inline.ko

  Kudos to Stan for reporting the raw-wakeref WARNs this issue caused. His
  config has CONFIG_DRM_I915_DEBUG_RUNTIME_PM=n, which I didn't retest
  after v1, and we are also not testing this config in CI.

  Now tested both with CONFIG_DRM_I915_DEBUG_RUNTIME_PM=y/n on ICL,
  connecting both Chamelium and regular DP, HDMI sinks.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190513192533.12586-1-imre.deak@intel.com
2019-05-14 14:06:10 +03:00
Imre Deak ee70080a52 drm/i915: Verify power domains state during suspend in all cases
There is no reason why we couldn't verify the power domains state during
suspend in all cases, so do that. I overlooked this when originally
adding the check.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509173446.31095-4-imre.deak@intel.com
2019-05-14 13:56:11 +03:00
Imre Deak dbf99c1f8c drm/i915: Force printing wakeref tacking during pm_cleanup
Make sure we print and drop the wakeref tracking info during pm_cleanup
even if there are wakeref holders (either raw-wakeref or wakelock
holders). Dropping the wakeref tracking means that a late put on the ref
will WARN since the wakeref will be unknown, but that is rightly so,
since the put is late and we want to catch that case.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509173446.31095-3-imre.deak@intel.com
2019-05-14 13:56:08 +03:00
Imre Deak 4547c255f4 drm/i915: Add support for tracking wakerefs w/o power-on guarantee
It's useful to track runtime PM refs that don't guarantee a device
power-on state to the rest of the driver. One such case is holding a
reference that will be put asynchronously, during which normal users
without their own reference shouldn't access the HW. A follow-up patch
will add support for disabling display power domains asynchronously
which needs this.

For this we can split wakeref_count into a low half-word tracking
all references (raw-wakerefs) and a high half-word tracking
references guaranteeing a power-on state (wakelocks).

Follow-up patches will make use of the API added here.

While at it add the missing docbook header for the unchecked
display-power and runtime_pm put functions.

No functional changes, except for printing leaked raw-wakerefs
and wakelocks separately in intel_runtime_pm_cleanup().

v2:
- Track raw wakerefs/wakelocks in the low/high half-word of
  wakeref_count, instead of adding a new counter. (Chris)
v3:
- Add a struct_member(T, m) helper instead of open-coding it. (Chris)
- Checkpatch indentation formatting fix.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509173446.31095-2-imre.deak@intel.com
2019-05-14 13:56:03 +03:00
Linus Torvalds a2d635decb drm pull request for 5.2
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Merge tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This has two exciting community drivers for ARM Mali accelerators.
  Since ARM has never been open source friendly on the GPU side of the
  house, the community has had to create open source drivers for the
  Mali GPUs. Lima covers the older t4xx and panfrost the newer 6xx/7xx
  series. Well done to all involved and hopefully this will help ARM
  head in the right direction.

  There is also now the ability if you don't have any of the legacy
  drivers enabled (pre-KMS) to remove all the pre-KMS support code from
  the core drm, this saves 10% or so in codesize on my machine.

  i915 also enable Icelake/Elkhart Lake Gen11 GPUs by default, vboxvideo
  moves out of staging.

  There are also some rcar-du patches which crossover with media tree
  but all should be acked by Mauro.

  Summary:

  uapi changes:
   - Colorspace connector property
   - fourcc - new YUV formts
   - timeline sync objects initially merged
   - expose FB_DAMAGE_CLIPS to atomic userspace

  new drivers:
   - vboxvideo: moved out of staging
   - aspeed: ASPEED SoC BMC chip display support
   - lima: ARM Mali4xx GPU acceleration driver support
   - panfrost: ARM Mali6xx/7xx Midgard/Bitfrost acceleration driver support

  core:
   - component helper docs
   - unplugging fixes
   - devm device init
   - MIPI/DSI rate control
   - shmem backed gem objects
   - connector, display_info, edid_quirks cleanups
   - dma_buf fence chain support
   - 64-bit dma-fence seqno comparison fixes
   - move initial fb config code to core
   - gem fence array helpers for Lima
   - ability to remove legacy support code if no drivers requires it (removes 10% of drm.ko size)
   - lease fixes

  ttm:
   - unified DRM_FILE_PAGE_OFFSET handling
   - Account for kernel allocations in kernel zone only

  panel:
   - OSD070T1718-19TS panel support
   - panel-tpo-td028ttec1 backlight support
   - Ronbo RB070D30 MIPI/DSI
   - Feiyang FY07024DI26A30-D MIPI-DSI panel
   - Rocktech jh057n00900 MIPI-DSI panel

  i915:
   - Comet Lake (Gen9) PCI IDs
   - Updated Icelake PCI IDs
   - Elkhartlake (Gen11) support
   - DP MST property addtions
   - plane and watermark fixes
   - Icelake port sync and VEBOX disable fixes
   - struct_mutex usage reduction
   - Icelake gamma fix
   - GuC reset fixes
   - make mmap more asynchronous
   - sound display power well race fixes
   - DDI/MIPI-DSI clocks for Icelake
   - Icelake RPS frequency changing support
   - Icelake workarounds

  amdgpu:
   - Use HMM for userptr
   - vega20 experimental smu11 support
   - RAS support for vega20
   - BACO support for vega12 + fixes for vega20
   - reworked IH interrupt handling
   - amdkfd RAS support
   - Freesync improvements
   - initial timeline sync object support
   - DC Z ordering fixes
   - NV12 planes support
   - colorspace properties for planes=
   - eDP opts if eDP already initialized

  nouveau:
   - misc fixes

  etnaviv:
   - misc fixes

  msm:
   - GPU zap shader support expansion
   - robustness ABI addition

  exynos:
   - Logging cleanups

  tegra:
   - Shared reset fix
   - CPU cache maintenance fix

  cirrus:
   - driver rewritten using simple helpers

  meson:
   - G12A support

  vmwgfx:
   - Resource dirtying management improvements
   - Userspace logging improvements

  virtio:
   - PRIME fixes

  rockchip:
   - rk3066 hdmi support

  sun4i:
   - DSI burst mode support

  vc4:
   - load tracker to detect underflow

  v3d:
   - v3d v4.2 support

  malidp:
   - initial Mali D71 support in komeda driver

  tfp410:
   - omap related improvement

  omapdrm:
   - drm bridge/panel support
   - drop some omap specific panels

  rcar-du:
   - Display writeback support"

* tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm: (1507 commits)
  drm/msm/a6xx: No zap shader is not an error
  drm/cma-helper: Fix drm_gem_cma_free_object()
  drm: Fix timestamp docs for variable refresh properties.
  drm/komeda: Mark the local functions as static
  drm/komeda: Fixed warning: Function parameter or member not described
  drm/komeda: Expose bus_width to Komeda-CORE
  drm/komeda: Add sysfs attribute: core_id and config_id
  drm: add non-desktop quirk for Valve HMDs
  drm/panfrost: Show stored feature registers
  drm/panfrost: Don't scream about deferred probe
  drm/panfrost: Disable PM on probe failure
  drm/panfrost: Set DMA masks earlier
  drm/panfrost: Add sanity checks to submit IOCTL
  drm/etnaviv: initialize idle mask before querying the HW db
  drm: introduce a capability flag for syncobj timeline support
  drm: report consistent errors when checking syncobj capibility
  drm/nouveau/nouveau: forward error generated while resuming objects tree
  drm/nouveau/fb/ramgk104: fix spelling mistake "sucessfully" -> "successfully"
  drm/nouveau/i2c: Disable i2c bus access after ->fini()
  drm/nouveau: Remove duplicate ACPI_VIDEO_NOTIFY_PROBE definition
  ...
2019-05-08 21:35:19 -07:00
Ville Syrjälä 46034d2bb7 drm/i915: Move the hsw/bdw pc8 code to intel_runtime_pm.c
hsw_enable_pc8()/hsw_disable_pc8() are more less equivalent to
the display core init/unit functions of later platforms. Relocate
the hsw/bdw code into intel_runtime_pm.c so that it sits next to
its cousins.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190503193143.28240-2-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
2019-05-06 17:53:28 +03:00
Ville Syrjälä 8f91cfd2e7 drm/i915: Replace intel_ddi_pll_init()
intel_ddi_pll_init() is an anachronism. Rename it to
hsw_assert_cdclk() and move it to the power domain init code.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190503193143.28240-1-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
2019-05-06 17:53:28 +03:00
Jani Nikula b1ad4c39bf drm/i915: extract intel_dpio_phy.h from i915_drv.h
It used to be handy that we only had a couple of headers, but over time
i915_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/876a1671a84c6839bcafdf276cf9c4e1da6c631c.1556809195.git.jani.nikula@intel.com
2019-05-03 10:06:28 +03:00
Jani Nikula c9fd91668d drm/i915: add single combo phy init/unit functions
Work on the principle that files should prefer not to expose platform
specific functions.

v2, v3: Rebase

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190502145234.7002-1-jani.nikula@intel.com
2019-05-03 09:27:13 +03:00
Jani Nikula d5f9db2c2a drm/i915: extract intel_combo_phy.h from i915_drv.h
It used to be handy that we only had a couple of headers, but over time
i915_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6aea17072684dec0b04b6831c0c0e5a134edf87e.1556540890.git.jani.nikula@intel.com
2019-04-30 15:05:07 +03:00
Jani Nikula dbeb38d93a drm/i915: extract intel_hotplug.h from intel_drv.h and i915_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: fix sparse warnings on undeclared global functions

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190429125011.10876-1-jani.nikula@intel.com
2019-04-30 15:04:19 +03:00
Jani Nikula 440e2b3d80 drm/i915: extract i915_irq.h from intel_drv.h and i915_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/64e46278dc8dccc9c548ef453cb2ceece5367bb2.1556540890.git.jani.nikula@intel.com
2019-04-30 14:30:05 +03:00
Lucas De Marchi fcfec1fc98 drm/i915/icl: fix step numbers in icl_display_core_init()
At some point the spec was changed and we never updated the numbers to
match it. Let's try once more to keep them in sync.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190404230426.15837-2-lucas.demarchi@intel.com
2019-04-30 02:25:37 -07:00
Thomas Gleixner 487f3c7fb1 drm: Simplify stacktrace handling
Replace the indirection through struct stack_trace by using the storage
array based interfaces.

The original code in all printing functions is really wrong. It allocates a
storage array on stack which is unused because depot_fetch_stack() does not
store anything in it. It overwrites the entries pointer in the stack_trace
struct so it points to the depot storage.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: intel-gfx@lists.freedesktop.org
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: linux-mm@kvack.org
Cc: David Rientjes <rientjes@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: kasan-dev@googlegroups.com
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: David Sterba <dsterba@suse.com>
Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: linux-btrfs@vger.kernel.org
Cc: dm-devel@redhat.com
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: linux-arch@vger.kernel.org
Link: https://lkml.kernel.org/r/20190425094802.622094226@linutronix.de
2019-04-29 12:37:53 +02:00
Chris Wilson 56c5098ffc drm/i915: Separate sideband declarations to intel_sideband.h
Split the sideback declarations out of the ginormous i915_drv.h

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-5-chris@chris-wilson.co.uk
2019-04-26 10:20:39 +01:00
Chris Wilson ebb5eb7d73 drm/i915: Replace pcu_lock with sb_lock
We now have two locks for sideband access. The general one covering
sideband access across all generation, sb_lock, and a specific one
covering sideband access via the punit on vlv/chv. After lifting the
sb_lock around the punit into the callers, the pcu_lock is now redudant
and can be separated from its other use to regulate RPS (essentially
giving RPS a lock all of its own).

v2: Extract a couple of minor bug fixes.

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/20190426081725.31217-4-chris@chris-wilson.co.uk
2019-04-26 10:20:35 +01:00
Chris Wilson 337fa6e04d drm/i915: Lift sideband locking for vlv_punit_(read|write)
Lift the sideband acquisition for vlv_punit_read and vlv_punit_write
into their callers, so that we can lock the sideband once for a sequence
of operations, rather than perform the heavyweight acquisition on each
request.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-3-chris@chris-wilson.co.uk
2019-04-26 10:20:32 +01:00
Chris Wilson 221c78623e drm/i915: Lift acquiring the vlv punit magic to a common sb-get
As we now employ a very heavy pm_qos around the punit access, we want to
minimise the number of synchronous requests by performing one for the
whole punit sequence rather than around individual accesses. The
sideband lock is used for this, so push the pm_qos into the sideband
lock acquisition and release, moving it from the lowlevel punit rw
routine to the callers. In the first step, we move the punit magic into
the common sideband lock so that we can acquire a bunch of ports
simultaneously, and if need be extend the workaround protection later.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-2-chris@chris-wilson.co.uk
2019-04-26 10:20:28 +01:00
Thomas Gleixner fa49e2eac9 drm: Remove the ULONG_MAX stack trace hackery
No architecture terminates the stack trace with ULONG_MAX anymore. Remove
the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lkml.kernel.org/r/20190410103644.945059666@linutronix.de
2019-04-14 19:58:32 +02:00
Bob Paauwe 39564ae86d drm/i915/ehl: Inherit Ice Lake conditional code
Most of the conditional code for ICELAKE also applies to ELKHARTLAKE
so use IS_GEN(dev_priv, 11) even for PM and Workarounds for now.

v2: - Rename commit (Jose)
    - Include a wm workaround (Jose and Lucas)
    - Include display core init (Jose and Lucas)
v3: Add a missing case of gen greater-than 11 (Jose)

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412180920.22347-1-rodrigo.vivi@intel.com
2019-04-12 15:15:01 -07:00
Chris Wilson 2e1e5c5532 drm/i915: Avoid reclaim taints from runtime-pm debug
As intel_runtime_pm_get/_put may be called from any blockable context,
we need to avoid allowing reclaim from our mallocs, as we need to
avoid tainting any mutexes held by the callers (as they may themselves
not allow for allocations as they are taken in the shrinker).

<4> [435.339331] WARNING: possible circular locking dependency detected
<4> [435.339364] 5.1.0-rc4-CI-Trybot_4116+ #1 Tainted: G     U
<4> [435.339395] ------------------------------------------------------
<4> [435.339426] gem_caching/1334 is trying to acquire lock:
<4> [435.339456] 000000004505c39b (wakeref#3){+.+.}, at: intel_engine_pm_put+0x1b/0x40 [i915]
<4> [435.339788]
but task is already holding lock:
<4> [435.339819] 00000000ee77b4ed (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.24+0x0/0x30
<4> [435.339879]
which lock already depends on the new lock.

<4> [435.339918]
the existing dependency chain (in reverse order) is:
<4> [435.339952]
-> #1 (fs_reclaim){+.+.}:
<4> [435.339998]        fs_reclaim_acquire.part.24+0x24/0x30
<4> [435.340035]        kmem_cache_alloc_trace+0x2a/0x290
<4> [435.340311]        __print_intel_runtime_pm_wakeref+0x24/0x160 [i915]
<4> [435.340590]        untrack_intel_runtime_pm_wakeref+0x16e/0x1d0 [i915]
<4> [435.340869]        intel_runtime_pm_put_unchecked+0xd/0x30 [i915]
<4> [435.341147]        __intel_wakeref_put_once+0x22/0x40 [i915]
<4> [435.341508]        i915_request_retire+0x477/0xaf0 [i915]
<4> [435.341871]        ring_retire_requests+0x86/0x160 [i915]
<4> [435.342226]        i915_retire_requests+0x58/0xc0 [i915]
<4> [435.342576]        retire_work_handler+0x5b/0x70 [i915]
<4> [435.342615]        process_one_work+0x245/0x610
<4> [435.342646]        worker_thread+0x37/0x380
<4> [435.342679]        kthread+0x119/0x130
<4> [435.342714]        ret_from_fork+0x3a/0x50
<4> [435.342739]
-> #0 (wakeref#3){+.+.}:
<4> [435.342788]        lock_acquire+0xa6/0x1c0
<4> [435.342822]        __mutex_lock+0x8c/0x960
<4> [435.342853]        atomic_dec_and_mutex_lock+0x33/0x50
<4> [435.343151]        intel_engine_pm_put+0x1b/0x40 [i915]
<4> [435.343501]        i915_request_retire+0x477/0xaf0 [i915]
<4> [435.343851]        ring_retire_requests+0x86/0x160 [i915]
<4> [435.344202]        i915_retire_requests+0x58/0xc0 [i915]
<4> [435.344543]        i915_gem_shrink+0xd8/0x5b0 [i915]
<4> [435.344835]        i915_drop_caches_set+0x17b/0x250 [i915]
<4> [435.344877]        simple_attr_write+0xb0/0xd0
<4> [435.344911]        full_proxy_write+0x51/0x80
<4> [435.344943]        vfs_write+0xbd/0x1b0
<4> [435.344972]        ksys_write+0x55/0xe0
<4> [435.345002]        do_syscall_64+0x55/0x190
<4> [435.345040]        entry_SYSCALL_64_after_hwframe+0x49/0xbe

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190409174108.19396-1-chris@chris-wilson.co.uk
2019-04-11 20:48:52 +01:00
Jani Nikula 93a643f29b drm/i915/cdclk: have only one init/uninit function
While transitioning to having better clarity between the modules, it's
desirable to have the function name prefixes reflect the
module. Functions in intel_foo.c should be prefixed intel_foo_.

Expose only one CDCLK init/uninit function from intel_cdclk.c instead of
one per platform. Obviously this adds one "unnecessary" if ladder within
the entry points. However it should be considered more of a CDCLK
implementation detail how this is done per platform, instead of exposing
the fact. In other words, abstract the CDCLK module better.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f63ed6e129098a32c63735be6cffa4756e7947af.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:40 +03:00
Jani Nikula e7674ef682 drm/i915: extract intel_cdclk.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c128d7be3f621391e571e86b03f302f3ffd0ed2b.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:35 +03:00
Jani Nikula 27fec1f973 drm/i915: extract intel_dp.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f86f9beed730eaad0bdcc18b18817b3d221e16e2.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:54 +03:00
Jani Nikula 174594db63 drm/i915: extract intel_csr.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: Add function argument names to fix checkpatch warning

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/44ceebca0206de9c40dc6794b660d84b8994f700.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:49 +03:00
Jani Nikula d2ee2e8afe drm/i915: extract intel_crt.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/19c39bfcfb82f50c77382e8dea4fe1ad6cd043ed.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:29 +03:00
Daniele Ceraolo Spurio 97a04e0d07 drm/i915: switch intel_wait_for_register to uncore
The intel_uncore structure is the owner of register access, so
subclass the function to it.

While at it, use a local uncore var and switch to the new read/write
functions where it makes sense.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190325214940.23632-9-daniele.ceraolospurio@intel.com
2019-03-26 20:20:24 +00:00
Imre Deak 209d73530d drm/i915/icl: Prevent incorrect DBuf enabling
Pretend that we have only 1 DBuf slice and that 1 slice is always
enabled, until we have a proper way for on-demand toggling of the second
slice.  Currently we'll try to incorrectly enable DBuf even when all
pipes are disabled and we are already runtime suspended (as the computed
number of DBuf slices will be 1 in that case).

This also means we'll leave the second slice enabled redundantly (except
when suspended), but that's an acceptable tradeoff until we have a
proper solution.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108756
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190307103235.23538-1-imre.deak@intel.com
2019-03-08 10:07:49 +02:00
Ville Syrjälä 5e0b669765 drm/i915: Assert that VED and ISP are power gated
As there are no upstream drivers for VED or ISP let's just
assert that they are power gated. Otherwise they would
prevent s0ix entry.

For ISP this is only relevant when it is not exposed as a
PCI device and instead is a subordinate of the gunit. When
exposed as a PCI device it will be handled by the
atomisp2_pm driver.

On my VLV FFRD8 board the firmware power gates both of these
by default. Let's assume that is always the case and just
WARN if we ever encounter something different.

Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181129175504.3630-2-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
2019-02-13 18:43:50 +02:00
Ville Syrjälä c11b813f53 drm/i915: s/PUNIT_REG_DSPFREQ/PUNIT_REG_DSPSSPM/
Rename the punit display power register to match the spec.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181129175504.3630-1-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
2019-02-13 18:36:23 +02:00
Jani Nikula 739f3abdbf drm/i915: small isolated c99 types to kernel types switch
Mixed C99 and kernel types use is getting ugly. Prefer kernel types.

sed -i 's/\buint\(8\|16\|32\|64\)_t\b/u\1/g'

Minor checkpatch fixes sprinkled on top of the changed lines.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/14ed72e7f04c9340a057855c5950b54811f8a477.1547629303.git.jani.nikula@intel.com
2019-01-17 09:02:00 +02:00
Chris Wilson 25c896bdb8 drm/i915: Track the wakeref used to initialise display power domains
On module load and unload, we grab the POWER_DOMAIN_INIT powerwells and
transfer them to the runtime-pm code. We can use our wakeref tracking to
verify that the wakeref is indeed passed from init to enable, and
disable to fini; and across suspend.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190114142129.24398-17-chris@chris-wilson.co.uk
2019-01-14 16:18:38 +00:00