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32149 Commits

Author SHA1 Message Date
Ville Syrjälä
19a49f3995 drm/i915/dsi: Remove weird has_pch_encoder asserts 
No idea why the DSI code is feeling the need to assert that
has_pch_encoder must not be set. PCH encoders aren't even a
thing on any platform that has DSI.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-14-ville.syrjala@linux.intel.com
 2023-06-13 19:08:29 +03:00
Ville Syrjälä
3d41ec41f1 drm/i915/dsi: Grab the crtc from the customary place 
The encoder hooks already get passed the crtc state so just
grab the crtc from there instead of from the connector state.
This is generally what everyone else does, so no reason for
icl_dsi.c to be different.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-13-ville.syrjala@linux.intel.com
 2023-06-13 19:08:16 +03:00
Ville Syrjälä
5263a63c88 drm/i915/dsi: Move panel reset+power off to be the last thing 
Follow what Windows does and do the DSI panel reset+power off
after everything else.

v2: s/intel_dsi_msleep/msleep/

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-12-ville.syrjala@linux.intel.com
 2023-06-13 19:07:52 +03:00
Ville Syrjälä
1c7684e7b7 drm/i915/dsi: Respect power_off_delay on icl+ 
icl+ DSI isn't respecting the panel power_off_delay. Remedy that.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-11-ville.syrjala@linux.intel.com
 2023-06-13 19:06:58 +03:00
Ville Syrjälä
29428c85be drm/i915/dsi: Do DSC/scaler disable earlier on icl+ 
Do the scaler disable in the spot where bspec has specfied it
for TGL+. And also move the DSC disable to match what
intel_ddi.c does.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-10-ville.syrjala@linux.intel.com
 2023-06-13 19:06:39 +03:00
Ville Syrjälä
a57aa1e369 drm/i915/dsi: Move most things from .disable() into .post_disable() on icl+ 
encoder->disable() is supposed to happen before the pipe/transcoder
gets disabled. The icl+ DSI code screwed that up and put most things
(including the transcoder disable itself) into  encoder->disable().
Follow the common rules and hoist most things into the
encoder->post_disable() hook.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-9-ville.syrjala@linux.intel.com
 2023-06-13 19:05:52 +03:00
Ville Syrjälä
e39724769d drm/i915/dsi: Implement encoder->shutdown() for icl+ 
Plug in the encoder->shutdown() hook for icl+ DSI so that
we are guaranteed to respect the power cycle delay during
reboots and whatnot.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-8-ville.syrjala@linux.intel.com
 2023-06-13 19:05:34 +03:00
Ville Syrjälä
201963a827 drm/i915/dsi: Respect power cycle delay on icl+ 
Handle the DSI panel power cycle delay on icl+.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-7-ville.syrjala@linux.intel.com
 2023-06-13 19:05:07 +03:00
Ville Syrjälä
a43d928120 drm/i915/dsi: Gate DSI clocks earlier 
The clock gating step is in the wrong spot compared to the
TGL+ bspec sequence. Move it the right place. Windows also
seems to use the TGL+ order here always.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-6-ville.syrjala@linux.intel.com
 2023-06-13 19:04:25 +03:00
Ville Syrjälä
d4121327ac drm/i915/dsi: Split icl+ D-PHY vs. DSI timing steps 
The programming of the DPHY vs. DSI _TIMING registers are
two separate steps in the TGL+ bspec sequence, with some
other stuff in between. Implement the same split.
Windows also seems follow the bspec TGL+ sequence, even
on ICL/JSL.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-5-ville.syrjala@linux.intel.com
 2023-06-13 19:03:35 +03:00
Ville Syrjälä
ad52208657 drm/i915/dsi: Print the VBT MIPI sequence delay duration 
Help out debugging things by printing out how long the VBT
delay sequence is supposed to wait.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-4-ville.syrjala@linux.intel.com
 2023-06-13 19:03:14 +03:00
Ville Syrjälä
88b065943c drm/i915/dsi: Do display on sequence later on icl+ 
Doing the init OTP and display on DSI sequences back to back
doesn't really make any sense (a single sequence would suffice
then). Move the display on sequence to be done just before
backlight on, which is also what Windows does.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-3-ville.syrjala@linux.intel.com
 2023-06-13 19:02:53 +03:00
Ville Syrjälä
86ecd3b3d1 drm/i915/dsi: Do panel power on + reset deassert earlier on icl+ 
Looks like we're trying to talk to the DSI panel even before turning
it on, on icl+. Bspec doesn't actually specify when these should be
done, but certainly we need to turn the panel on at least before
talking to it. So let's move the power on + reset deassert steps to
be the first thing we do. This is also what Windows does.

v2: s/intel_dsi_msleep/msleep/

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-2-ville.syrjala@linux.intel.com
 2023-06-13 19:02:31 +03:00
Arnd Bergmann
b02a9a0c6c drm/i915/gmch: avoid unused variable warning 
When CONFIG_PNP is disabled, the mchbar_addr variable is only written but
not read:

drivers/gpu/drm/i915/soc/intel_gmch.c: In function 'intel_alloc_mchbar_resource':
drivers/gpu/drm/i915/soc/intel_gmch.c:41:13: error: variable 'mchbar_addr' set but not used [-Werror=unused-but-set-variable]
   41 |         u64 mchbar_addr;
      |             ^~~~~~~~~~~

No idea why this showed up now, but it's easy to fix by changing the #ifdef to
an IS_ENABLED() check that the compiler can see through.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230612124408.521325-1-arnd@kernel.org
 2023-06-13 00:41:37 +02:00
Alan Previn
8c33c3755b drm/i915/gsc: take a wakeref for the proxy-init-completion check 
Ensure intel_gsc_uc_fw_init_done and intel_gsc_uc_fw_proxy_init
takes a wakeref before reading GSC Shim registers.

NOTE: another patch in review also adds a call from selftest to
this same function. (https://patchwork.freedesktop.org/series/117713/)
which is why i am adding the wakeref inside the callee, not the
caller.

v2: - add a helper, 'gsc_uc_get_fw_status' for both callers
      (Daniele Ceraolo)

Fixes: 99afb7cc8c ("drm/i915/pxp: Add ARB session creation and cleanup")
Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608230716.3079594-1-alan.previn.teres.alexis@intel.com
 2023-06-12 08:24:28 -07:00
Nirmoy Das
f56fe3e917 drm/i915: Fix a VMA UAF for multi-gt platform 
Ensure correct handling of closed VMAs on multi-gt platforms to prevent
Use-After-Free. Currently, when GT0 goes idle, closed VMAs that are
exclusively added to GT0's closed_vma link (gt->closed_vma) and
subsequently freed by i915_vma_parked(), which assumes the entire GPU is
idle. However, on platforms with multiple GTs, such as MTL, GT1 may
remain active while GT0 is idle. This causes GT0 to mistakenly consider
the closed VMAs in its closed_vma list as unnecessary, potentially
leading to Use-After-Free issues if a job for GT1 attempts to access a
freed VMA.

Although we do take a wakeref for GT0 but it happens later, after
evaluating VMAs. To mitigate this, it is necessary to hold a GT0 wakeref
early.

v2: Use gt id to detect multi-tile(Andi)
    Fix the incorrect error path.
v3: Add more comment(Andi)
    Use the new gt var when possible(Andrzej)

Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Chris Wilson <chris.p.wilson@intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Tested-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Tested-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608110103.777594-1-andi.shyti@linux.intel.com
 2023-06-10 23:02:44 +02:00
Jani Nikula
69f06e4fa0 Merge drm/drm-next into drm-intel-next 
Sync up with changes from drm-intel-gt-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2023-06-10 10:04:00 +03:00
Luca Coelho
0976b3dc02 drm/i915/selftests: add local workqueue for SW fence selftest 
Instead of using a global workqueue for the SW fence selftest,
allocate a separate one temporarily only while running the test.

Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/313f4a713053c2b4896ced5b0e9ff456eb85fe57.1686231190.git.jani.nikula@intel.com
 2023-06-10 06:33:16 +03:00
Luca Coelho
848a4e5c09 drm/i915: add a dedicated workqueue inside drm_i915_private 
In order to avoid flush_scheduled_work() usage, add a dedicated
workqueue in the drm_i915_private structure.  In this way, we don't
need to use the system queue anymore.

This change is mostly mechanical and based on Tetsuo's original
patch[1].

v6 by Jani:
- Also create unordered_wq for mock device

Link: https://patchwork.freedesktop.org/series/114608/ [1]
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c816ebe17ef08d363981942a096a586a7658a65e.1686231190.git.jani.nikula@intel.com
 2023-06-10 06:33:11 +03:00
Luca Coelho
8d208a5eed drm/i915: use pointer to i915 instead of rpm in wakeref 
Currently a pointer to an intel_runtime_pm structure is stored in the
wake reference structures so the runtime data can be accessed.  We can
save the entire device information (drm_i915_private) instead, since
we'll need to reference the new workqueue we'll add in subsequent
patches.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ec0eb5149120d04f3d9870d7671ef10103e6fc29.1686231190.git.jani.nikula@intel.com
 2023-06-10 06:32:58 +03:00
Harry Wentland
c265f340ea drm/connector: Allow drivers to pass list of supported colorspaces 
Drivers might not support all colorspaces defined in
dp_colorspaces and hdmi_colorspaces. This results in
undefined behavior when userspace is setting an
unsupported colorspace.

Allow drivers to pass the list of supported colorspaces
when creating the colorspace property.

v2:
 - Use 0 to indicate support for all colorspaces (Jani)
 - Print drm_dbg_kms message when drivers pass 0
   to signal that drivers should specify supported
   colorspaecs explicity (Jani)

v3:
 - Move changes to create a common colorspace_names array
   to separate patch

v6:
- Avoid magic when passing 0 for supported_colorspaces;
  be explicit in treating it as "all DP/HDMI"

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>
Reviewed-by: Simon Ser <contact@emersion.fr>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2023-06-09 12:46:44 -04:00
Dave Airlie
ba57b9b11f Merge tag 'drm-intel-gt-next-2023-06-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 
UAPI Changes:

- I915_GEM_CREATE_EXT_SET_PAT for Mesa on Meteorlake.

Driver Changes:

Fixes/improvements/new stuff:

- Use large rings for compute contexts (Chris Wilson)
- Better logging/debug of unexpected GuC communication issues (Michal Wajdeczko)
- Clear out entire reports after reading if not power of 2 size (Ashutosh Dixit)
- Limit lmem allocation size to succeed on SmallBars (Andrzej Hajda)
- perf/OA capture robustness improvements on DG2 (Umesh Nerlige Ramappa)
- Fix error code in intel_gsc_uc_heci_cmd_submit_nonpriv() (Dan Carpenter)

Future platform enablement:

- Add workaround 14016712196 (Tejas Upadhyay)
- HuC loading for MTL (Daniele Ceraolo Spurio)
- Allow user to set cache at BO creation (Fei Yang)

Miscellaneous:

- Use system include style for drm headers (Jani Nikula)
- Drop legacy CTB definitions (Michal Wajdeczko)
- Turn off the timer to sample frequencies when GT is parked (Ashutosh Dixit)
- Make PMU sample array two-dimensional (Ashutosh Dixit)
- Use the correct error value when kernel_context() fails (Andi Shyti)
- Fix second parameter type of pre-gen8 pte_encode callbacks (Nathan Chancellor)
- Fix parameter in gmch_ggtt_insert_{entries, page}() (Nathan Chancellor)
- Fix size_t format specifier in gsccs_send_message() (Nathan Chancellor)
- Use the fdinfo helper (Tvrtko Ursulin)
- Add some missing error propagation (Tvrtko Ursulin)
- Reduce I915_MAX_GT to 2 (Matt Atwood)
- Rename I915_PMU_MAX_GTS to I915_PMU_MAX_GT (Matt Atwood)
- Remove some obsolete definitions (John Harrison)

Merges:

- Merge drm/drm-next into drm-intel-gt-next (Tvrtko Ursulin)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZIH09fqe5v5yArsu@tursulin-desk
 2023-06-09 16:43:36 +10:00
Dave Airlie
959294e479 Merge tag 'drm-intel-next-2023-06-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 
drm/i915 features for v6.5:

Features and functionality:
- Meteorlake (MTL) display enabling (Mika, Radhakrishna, José, Ankit, Clint,
  Gustavo, Imre, Anusha, Juha-Pekka, Matt)
- Allow VRR to be toggled during fastsets (Ville)
- Allow arbitrary refresh rates with VRR eDP panels (Ville)
- Support async flips on linear buffers on display ver 12+  (Arun)
- New debugfs for display clock frequencies (Bhanuprakash)
- Taint kernel when force probing unsupported devices (Jani)
- Expose CRTC CTM property on ILK/SNB/VLV (Ville)

DRM subsystem changes:
- EDID changes to support further conversion to struct drm_edid (Jani)
- Move i915 DSC parameter code to common DRM helpers (Dmitry Baryshkov)

Refactoring and cleanups:
- CSC color refactoring (Ville)
- VRR cleanups (Ville)
- Finish i915 conversion to struct drm_edid (Jani)
- Start high level display driver file (Jani)
- Hotplug refactoring (Ville)
- Misc display refactoring and cleanups (Jani, Ville)
- Use device based logging for state checker warnings (Jani)
- Split out hotplug and display irq handling (Jani)
- Move display device info and probe under display/ (Matt)
- HDCP cleanups (Suraj)
- Use localized warning ignores instead of per file (Jani)
- Remove superfluous enum i915_drm_suspend_mode (Maarten)
- PSR, pfit, scaler and chicken register definition cleanups (Ville)
- Constify pointers to hwmon_channel_info (Krzysztof Kozlowski)
- Replace all non-returning strlcpy with strscpy (Azeem Shaikh)
- Refactor VBT aux channel and DDC pin mapping (Ville)
- Include cleanups (Jani)

Fixes:
- Fix modeset locking issue in DP MST HDCP (Suraj)
- Fix disconnected Type-C/DP-alt disable at probe (Imre)
- Fix HDMI PCON DSC usage and color conversions (Ankit)
- Fix g4x HDMI infoframe/audio transmission port usage (Ville)
- Avoid use-after-free when DP connector init fails (Maarten)
- Fix voltage level for 480 MHz CDCLK (Chaitanya)
- Check HPD live state during eDP probe (Ville)
- Fix active port PLL selection for secondary MST streams (Imre)
- Check pipe source size when using SKL+ scalers (Ville)
- Fix MIPI DSI sleep sequences (Hans de Goede)
- Fix DPCD register write order to match 128b/132b requirement (Arun)
- Increase AUX timeout for Type-C (Suraj)
- Communicate display power demands to pcode (Stan)
- Fix potential division by zero in DSC compute config (Nikita Zhandarovich)
- Fix fast wake AUX sync length (Jouni)
- Fix potential oops on intel_get_crtc_new_encoder() (Ville)

Merges:
- drm-next backmerges (Rodrigo, Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87zg5eat32.fsf@intel.com
 2023-06-09 11:46:11 +10:00
Jani Nikula
3fecd469da drm/i915: re-enable -Wunused-but-set-variable 
W=1 enables -Wunused-but-set-variable. We disabled it locally in i915
Makefile as we were hitting a bunch of warnings. See commit 6a05d29004
("drm/i915: Disable unused-but-set compiler warning").

With the issues fixed or annotated with __maybe_unused, re-enable the
warning not only in W=1 but also locally as part of i915 build.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/28ca3f95fe77ceb8aa35b87fca73f7afbc89859a.1685119007.git.jani.nikula@intel.com
 2023-06-08 11:27:25 +03:00
Zhi Wang
f645d22b93 drm/i915/gvt: remove unused variable gma_bottom in command parser 
Remove unused variable gma_bottom in scan_workload() and scan_wa_ctx().
commit be1da7070a ("drm/i915/gvt: vGPU command scanner") introduces
gma_bottom in several functions to calculate the size of the command
buffer. However, some of them are set but actually unused.

When compiling the code with ccflags -Wunused-but-set-variable, gcc
throws warnings.

Remove unused variables to avoid the gcc warnings. Tested via compiling
the code with ccflags -Wunused-but-set-variable.

Fixes: be1da7070a ("drm/i915/gvt: vGPU command scanner")
Suggested-by: Jani Nikula <jani.nikula@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: intel-gvt-dev@lists.freedesktop.org
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531020411.18987-1-zhi.a.wang@intel.com
 2023-06-08 11:27:25 +03:00
Dan Carpenter
24335848e5 drm/i915/gsc: Fix error code in intel_gsc_uc_heci_cmd_submit_nonpriv() 
This should return negative -EAGAIN instead of positive EAGAIN.

Fixes: e5e1e6d28e ("drm/i915/pxp: Add MTL helpers to submit Heci-Cmd-Packet to GSC")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZH7sr+Vs4zOQoouU@moroto
 2023-06-08 02:11:04 +02:00
Matt Roper
5e0bff2b96 drm/i915/display: Include of display limits doesn't need 'display/' 
Drop the unnecessary directory prefix.  This also makes
intel_display_device.h easier to use from the Xe driver.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230607150946.1996087-1-matthew.d.roper@intel.com
 2023-06-07 16:18:47 -07:00
Umesh Nerlige Ramappa
589f4924e8 i915/perf: Do not add ggtt offset to hw_tail 
ggtt offset for hw_tail is not required for the calculations, so drop
it.

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230605193923.1836048-3-umesh.nerlige.ramappa@intel.com
 2023-06-07 12:55:11 -07:00
Umesh Nerlige Ramappa
9cc31938d4 i915/perf: Drop the aging_tail logic in perf OA 
On DG2, capturing OA reports while running heavy render workloads
sometimes results in invalid OA reports where 64-byte chunks inside
reports have stale values. Under memory pressure, high OA sampling rates
(13.3 us) and heavy render workload, occasionally, the OA HW TAIL
pointer does not progress as fast as the sampling rate. When these
glitches occur, the TAIL pointer takes approx. 200us to progress.  While
this is expected behavior from the HW perspective, invalid reports are
not expected.

In oa_buffer_check_unlocked(), when we execute the if condition, we are
updating the oa_buffer.tail to the aging tail and then setting pollin
based on this tail value, however, we do not have a chance to rewind and
validate the reports prior to setting pollin. The validation happens
in a subsequent call to oa_buffer_check_unlocked(). If a read occurs
before this validation, then we end up reading reports up until this
oa_buffer.tail value which includes invalid reports. Though found on
DG2, this affects all platforms.

The aging tail logic is no longer necessary since we are explicitly
checking for landed reports.

Start by dropping the aging tail logic.

v2:
- Drop extra blank line
- Add reason to drop aging logic (Ashutosh)
- Add bug links (Ashutosh)
- rename aged_tail to read_tail
- Squash patches 3 and 1

v3: (Ashutosh)
- Remove extra spaces
- Remove gtt_offset from the pollin calculation
- s/Bug:/Link/ in commit message (checkpatch)

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7484
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7757
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230605193923.1836048-2-umesh.nerlige.ramappa@intel.com
 2023-06-07 12:54:59 -07:00
Mika Kahola
4c4cc7ac20 drm/i915/mtl: Add support for PM DEMAND 
MTL introduces a new way to instruct the PUnit with
power and bandwidth requirements of DE. Add the functionality
to program the registers and handle waits using interrupts.
The current wait time for timeouts is programmed for 10 msecs to
factor in the worst case scenarios. Changes made to use REG_BIT
for a register that we touched(GEN8_DE_MISC_IER _MMIO).

Wa_14016740474 is added which applies to Xe_LPD+ display

v2: checkpatch warning fixes, simplify program pmdemand part

v3: update to dbufs and pipes values to pmdemand register(stan)
    Removed the macro usage in update_pmdemand_values()

v4: move the pmdemand_pre_plane_update before cdclk update
    pmdemand_needs_update included cdclk params comparisons
    pmdemand_state NULL check (Gustavo)
    pmdemand.o in sorted order in the makefile (Jani)
    update pmdemand misc irq handler loop (Gustavo)
    active phys bitmask and programming correction (Gustavo)

v5: simplify pmdemand_state structure
    simplify methods to find active phys and max port clock
    Timeout in case of previou pmdemand task pending (Gustavo)

v6: rebasing
    updates to max_ddiclk calculations (Gustavo)
    updates to active_phys count method (Gustavo)

v7: use two separate loop to iterate throug old and new
    crtc states to calculate the active phys (Gustavo)

v8: use uniform function names (Gustavo)

v9: For phys change iterate through connectors (Imre)
    Look for change in phys for pmdemand update (Gustavo, Imre)
    Some more stlying changes (Imre)
    Update pmdemand state during HW readout/sanitize (Imre)

v10: Fix CI checkpatch warnings

v11: use correct pmdemand object pointer during hw readout,
     simplify the check for phys need update (Gustavo)

v12: Handle possible non serialize cases (Imre)
     Initialise also pmdemand params HW readout (Imre)
     Update active phys mask during sanitize calls (Imre)
     Check TC/encoder changes to limit connector update (Imre)

v13: Check display version before accessing pmdemand functions

v14: Move is_serialized to intel_global_state.c
     simplify update params and other stlying issues (Imre)

Bspec: 66451, 64636, 64602, 64603
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> #v4
Acked-by: Gustavo Sousa <gustavo.sousa@intel.com> #v11
Reviewed-by: Imre Deak <imre.deak@intel.com>
[RK: Fixed minor typo in one of the comments. s/qclck_gc/qclk_gv/]
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606201032.347449-1-vinod.govindapillai@intel.com
 2023-06-07 11:30:55 -07:00
Vinod Govindapillai
a5819e5191 drm/i915/mtl: find the best QGV point for the SAGV configuration 
From MTL onwards, we need to find the best QGV point based on
the required data rate and pass the peak BW of that point to
the punit to lock the corresponding QGV point.

v1: Fix for warning from kernel test robot

v2: No need to serialize for the peakbw change as pmdemand code
    will do that (Imre)

Bspec: 64636

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202305280253.Ab8bRV2w-lkp@intel.com/
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202305280253.Ab8bRV2w-lkp@intel.com/
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-7-vinod.govindapillai@intel.com
 2023-06-07 11:24:40 -07:00
Vinod Govindapillai
6400c215a1 drm/i915: modify max_bw to return index to intel_bw_info 
MTL uses the peak BW of a QGV point to lock the required QGV
point instead of the QGV index. Instead of passing the deratedbw
of the selected bw_info, return the index to the selected
bw_info so that either deratedbw or peakbw can be used based on
the platform.

v2: use idx to store index returned by max_bw_index functions

v3: return UINT_MAX in icl_max_bw_index in case no match found

v3: check idx >= ARRAY_SIZE

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-6-vinod.govindapillai@intel.com
 2023-06-07 11:24:39 -07:00
Vinod Govindapillai
463cc9402e drm/i915: extract intel_bw_check_qgv_points() 
Extract intel_bw_check_qgv_points() from intel_bw_atomic_check
to facilitate future platform variations in handling SAGV
configurations.

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-5-vinod.govindapillai@intel.com
 2023-06-07 11:24:38 -07:00
Vinod Govindapillai
88d0ecbde9 drm/i915: store the peak bw per QGV point 
In MTL onwards, pcode locks the GV point based on the peak BW
of a QGV point. So store the peak BW of all the QGV points.

v2: use DIV_ROUND_CLOSEST() for the peakBW calculation

Bspec: 64636

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-4-vinod.govindapillai@intel.com
 2023-06-07 11:24:37 -07:00
Vinod Govindapillai
39bea0ff0f drm/i915: update the QGV point frequency calculations 
From MTL onwwards, pcode locks the QGV point based on peak BW of
the intended QGV point passed by the driver. So the peak BW
calculation must match the value expected by the pcode. Update
the calculations as per the Bspec.

v2: use DIV_ROUND_* macro for the calculations (Ville)

v3: Use only DIV_ROUN_CLOSEST and remove divisor / 2 again

Bspec: 64636

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-3-vinod.govindapillai@intel.com
 2023-06-07 11:24:37 -07:00
Vinod Govindapillai
626765bb4b drm/i915: fix the derating percentage for MTL 
Follow the values from bspec for the percentage overhead for
efficiency in MTL BW calculations.

Bspec: 64631

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-2-vinod.govindapillai@intel.com
 2023-06-07 11:24:36 -07:00
Khaled Almahallawy
9831a9d184 drm/i915/dp: Fix log level for "CDS interlane align done" 
"CDS interlane align done" is a passing condition not an error.
Before adding new macros for logs it was drm_dbg_kms.

Fixes: f48eab2902 ("drm/i915/dp: Add link training debug and error printing helpers")
Cc: Imre Deak <imre.deak@intel.com>
CC: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606224428.3791006-1-khaled.almahallawy@intel.com
 2023-06-07 20:38:48 +03:00
Fei Yang
81b1b599df drm/i915: Allow user to set cache at BO creation 
To comply with the design that buffer objects shall have immutable
cache setting through out their life cycle, {set, get}_caching ioctl's
are no longer supported from MTL onward. With that change caching
policy can only be set at object creation time. The current code
applies a default (platform dependent) cache setting for all objects.
However this is not optimal for performance tuning. The patch extends
the existing gem_create uAPI to let user set PAT index for the object
at creation time.
The new extension is platform independent, so UMD's can switch to using
this extension for older platforms as well, while {set, get}_caching are
still supported on these legacy paltforms for compatibility reason.
However, since PAT index was not clearly defined for platforms prior to
GEN12 (TGL), so we are limiting this externsion to GEN12+ platforms
only. See ext_set_pat() in for the implementation details.

The documentation related to the PAT/MOCS tables is currently available
for Tiger Lake here:
https://www.intel.com/content/www/us/en/docs/graphics-for-linux/developer-reference/1-0/tiger-lake.html

The documentation for other platforms is currently being updated.

BSpec: 45101

Mesa support has been submitted in this merge request:
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22878

The media driver supprt has bin submitted in this merge request:
https://github.com/intel/media-driver/pull/1680

The IGT test related to this change is
igt@gem_create@create-ext-set-pat

Signed-off-by: Fei Yang <fei.yang@intel.com>
Cc: Chris Wilson <chris.p.wilson@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
Tested-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Carl Zhang <carl.zhang@intel.com>
Tested-by: Lihao Gu <lihao.gu@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Slawomir Milczarek <slawomir.milczarek@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606100042.482345-2-andi.shyti@linux.intel.com
 2023-06-07 17:32:15 +02:00
Jani Nikula
84f9c3c73b drm/i915: annotate maybe unused but set intel_crtc_state variables 
Prepare for re-enabling -Wunused-but-set-variable.

for_each_new_intel_crtc_in_state() requires passing in a struct
intel_crtc_state pointer, which it uses, but in a few places this leads
to warning about unused but set variables. Annotate them with
__maybe_unused.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/eb041f426bc3d76ef7a0ea906f99367cbf439b1a.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:25:48 +03:00
Jani Nikula
ace873049e drm/i915: annotate maybe unused but set intel_plane_state variables 
Prepare for re-enabling -Wunused-but-set-variable.

for_each_new_intel_plane_in_state() requires passing in a struct
intel_plane_state pointer, which it uses, but in many places this leads
to warning about unused but set variables. Annotate them with
__maybe_unused.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/438ff3b257b7f85ecca5750ae8687336faee0a79.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:25:38 +03:00
Jani Nikula
1032a491e2 drm/i915/selftest: annotate maybe unused but set variable unused 
Prepare for re-enabling -Wunused-but-set-variable.

The variable is indeed 'unused' as the name suggests, but we can't just
drop it because i915_vma_unbind_unlocked() is annotated
__must_check. Apparently the selftest does not really need to check the
value.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e7654682f6bd6a9f6af74f4b6eb5fff7b527e412.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:25:00 +03:00
Jani Nikula
ab438a61e4 drm/i915/gem: annotate maybe unused but set variable c 
Prepare for re-enabling -Wunused-but-set-variable.

The variable 'c' appears unused, but I'm not sure what should be done
with it. Annotate it with __maybe_unused.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9ee9e7d7a0a7ad4ff03c14e64b95d3fbcb7885a4.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:24:33 +03:00
Jani Nikula
927fc4a015 drm/i915/gem: drop unused but set variable unpinned 
Prepare for re-enabling -Wunused-but-set-variable.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6831c21567e8e84da424f32a8b7b48932803ab7b.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:23:43 +03:00
Jani Nikula
b3343230ce drm/i915/gt/uc: drop unused but set variable sseu 
Prepare for re-enabling -Wunused-but-set-variable.

Apparently sseu is leftover from commit 9a92732f04 ("drm/i915/gt: Add
general DSS steering iterator to intel_gt_mcr").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d542f25bffd5a50ff621bee93415a972c7768a2a.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:23:16 +03:00
Jani Nikula
41b611db30 drm/i915/irq: drop unused but set variable tmp 
Prepare for re-enabling -Wunused-but-set-variable.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6c529e8721d56b0148a3a84fb2d396d4485e09a2.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:23:07 +03:00
Jani Nikula
1176a905dd drm/i915/fb: drop unused but set variable cpp 
Prepare for re-enabling -Wunused-but-set-variable.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ce7a5cb06c562a3399206c521a24f5091a3e7c23.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:22:57 +03:00
Jani Nikula
c294d37eb4 drm/i915/dpll: drop unused but set variables bestn and bestm1 
Prepare for re-enabling -Wunused-but-set-variable.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a85ccc8c0f451fcb997b4ac138dbeba2a653cebe.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:22:48 +03:00
Jani Nikula
1fdac123ab drm/i915/dsi: drop unused but set variable vbp 
Prepare for re-enabling -Wunused-but-set-variable.

The vbp is not used for anything in the readout, as we get
e.g. crtc_vtotal from BXT_MIPI_TRANS_VTOTAL.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/27efd245aa75226adcac01eff7b21781970f2736.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:22:40 +03:00
Jani Nikula
ac12d250e9 drm/i915/dsi: drop unused but set variable data 
Prepare for re-enabling -Wunused-but-set-variable.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a1a167a4ff18b19d10769d83670e414586c16956.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:22:33 +03:00
Jani Nikula
3ba39084d6 drm/i915/ddi: drop unused but set variable intel_dp 
Prepare for re-enabling -Wunused-but-set-variable.

The intel_dp variable has been unused since commit ef79fafe9d
("drm/i915: Eliminate intel_dp.regs.dp_tp_{ctl,status}").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/66ca543b400a2048a6a84bb57a7bac8943014a96.1685119007.git.jani.nikula@intel.com
 2023-06-07 13:22:23 +03:00