git.kernel.dk Git - linux-block.git/log

drm/i915/pps: debug log the remaining power cycle delay to wait

While pps_init_delays() debug logs the power cycle delay, also debug log
the actual remaining time to wait in wait_panel_power_cycle().

Note that this still isn't the full picture; the power sequencer may
still wait after this one.

Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13007
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de> # Dell XPS 13
Link: https://patchwork.freedesktop.org/patch/msgid/20241204160048.2774419-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert intel_display_driver.[ch] to struct intel_display

Going forward, struct intel_display will be the main display driver
structure. Convert the main display entry points to struct
intel_display.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204102150.2223455-1-jani.nikula@intel.com

drm/i915/wm: Club initialized variables of same type together

Refactor program_dpkgc function so that all initialized variables
of same type are clubbed together.

--v2
-Modify commit message to reflect what is being done in patch [Mitul]

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203084706.2126189-6-suraj.kandpal@intel.com

drm/i915/wm: Modify latency programmed into PKG_C_LATENCY

Increase the latency programmed into PKG_C_LATENCY latency to be
a multiple of line time which is written into WM_LINETIME.

--v2
-Fix commit subject line [Sai Teja]
-Use individual DISPLAY_VER checks instead of range [Sai Teja]
-Initialize max_linetime [Sai Teja]

--v3
-take into account the scenario when adjusted_latency is 0 [Vinod]

--v4
-rename adjusted_latency to latency [Mitul]
-fix the condition in which dpkgc is disabled [Vinod]

--v5
-Add check to see if max_linetime is 0 [Vinod]

--v6
-Avoid nested if statements [Mitul]

WA: 22020299601
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203084706.2126189-5-suraj.kandpal@intel.com

drm/i915/display: Refactor DPKGC code to call it from atomic_commit_tail

Refactor the code to check the fixed refresh rate condition in the dpkgc
function itself and call it from intel_atomic_commit_tail so that we
have all the required values specially linetime which is computed after
intel_wm_compute, this will also help implement some WA's which requires
linetime. This also avoid writing into any of the registers while we are
in compute_config phase.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203084706.2126189-4-suraj.kandpal@intel.com

drm/i915/wm: Use intel_display structure in DPKGC code

Use intel_display for DPKGC code wherever we can. While we are
at it also use intel_de_rmw instead of intel_uncore_rmw as we
really don't need the internal uncore_rmw_function.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203084706.2126189-3-suraj.kandpal@intel.com

drm/i915/wm: Refactor dpkgc value prepration

Refactor the value getting prepped to be written into the PKG_C_LATENCY
register by ORing the REG_FIELD_PREP values instead of having val
getting operated on twice.
We dont need the clear and val variables to be initialized.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203084706.2126189-2-suraj.kandpal@intel.com

drm/i915/wm: Initialize max_latency variable to appropriate value

Initialize max_latency variable to LNL_PKG_C_LATENCY_MASK which helps
to eliminate the else block and make the whole code a lot cleaner.

--v2
-Seprate patch to club variables together [Mitul]

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203084706.2126189-1-suraj.kandpal@intel.com

drm/i915: Fix memory leak by correcting cache object name in error handler

Replace "slab_priorities" with "slab_dependencies" in the error handler
to avoid memory leak.

Fixes: 32eb6bcfdda9 ("drm/i915: Make request allocation caches global")
Cc: <stable@vger.kernel.org> # v5.2+
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@outlook.com>
Reviewed-by: Nirmoy Das <nirmoy.das@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/20241127201042.29620-1-jiashengjiangcool@gmail.com

drm/i915: Fix NULL pointer dereference in capture_engine

When the intel_context structure contains NULL,
it raises a NULL pointer dereference error in drm_info().

Fixes: e8a3319c31a1 ("drm/i915: Allow error capture without a request")
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12309
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: <stable@vger.kernel.org> # v6.3+
Signed-off-by: Eugene Kobyak <eugene.kobyak@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/xmsgfynkhycw3cf56akp4he2ffg44vuratocsysaowbsnhutzi@augnqbm777at

drm/i915/cx0: split out mtl_get_cx0_buf_trans() to c10 and c20 variants

The PHY is either c10 or c20, there's no need to check at runtime and
complicate the conditions in mtl_get_cx0_buf_trans().

While at it, replace the direct port clock check with
intel_dp_is_uhbr().

Cc: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129114158.486418-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: remove unused for_each_crtc()

This is essentially a duplicate of drm_for_each_crtc() anyway. Remove.

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241202125437.1154945-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: replace dig_port->saved_port_bits with flags

dig_port->saved_port_bits is used to permanently store two DDI_BUF_CTL
bits, DDI_BUF_PORT_REVERSAL and DDI_A_4_LANES. Store them separately as
bools to make their use more logical and less about storing state as
register bits.

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129102503.452272-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert power map to struct intel_display

Going forward, struct intel_display is the main device data structure
for display. Convert the power map code to it.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9df6b67914cd5afe7107c8431e8c475794b62298.1732808222.git.jani.nikula@intel.com

drm/i915/display: convert high level power interfaces to struct intel_display

Going forward, struct intel_display is the main device data structure
for display. Convert the high level interfaces (init, cleanup, suspend,
resume, etc.) of intel_display_power.c over to it. The actual power
get/put etc. are left for follow-up.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e1761b0fe5081bf6ca21cca3430befe254f61b32.1732808222.git.jani.nikula@intel.com

drm/i915/display: convert power domain code internally to struct intel_display

Going forward, struct intel_display is the main device data structure
for display. Convert intel_display_power.c internally first, leaving
external interfaces for follow-up.

v2: Rebase, checkpatch fixes

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d3284b30b53dd2fec786775ccb8992939360d774.1732808222.git.jani.nikula@intel.com

drm/i915/display: convert power wells to struct intel_display

Going forward, struct intel_display is the main device data structure
for display. Switch the power well code over to it.

v2: Fix parenthesis alignment

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b8c0ff5502a5df55ec7a160d90257c6f2befc0b6.1732808222.git.jani.nikula@intel.com

drm/i915/display: convert for_each_power_domain_well() to struct intel_display

Start converting display power domain code to struct
intel_display. Start off with for_each_power_domain_well() and the
reverse variant.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d21752baef1cab52ac3bec4f4e1f09f9acd6c1bf.1732808222.git.jani.nikula@intel.com

drm/i915/display: convert for_each_power_well() to struct intel_display

Start converting power well code to struct intel_display. Start off with
for_each_power_well() and the reverse variant.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/30c3e44cdb9557a195b2e086bf169da8d8497c6b.1732808222.git.jani.nikula@intel.com

drm/i915/hdcp: Remove log for HDMI HDCP LIC check

We don't need to shout out loud if there is a Link Integrity
Failure. This does not mean HDCP has failed, it is expected and
taken into account in the HDCP Spec. The real failure happens when
we are not able to reauthenticate and get HDCP running again for
which we already have the right logging.

--v2
-Remove the log altogether [Ankit]

--v3
-Remove useless display variable

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241202060410.1872121-1-suraj.kandpal@intel.com

drm/xe/display: Flush DMC wakelock release work on runtime suspend

We currently are not calling display runtime suspend functions when
D3cold is not allowed. Because of that, we end up not disabling dynamic
DC states (and do not go to DC9). With dynamic DC states enabled, we
will also have DMC wakelock enabled. Since we use a delayed work to
release the DMC wakelock, the work might get executed a little too late
(after the PCI device has been put to D3hot) and we get a timeout
warning ("DMC wakelock release timed out") because the MMIO for
releasing the wakelock will be invalid after that point.

To fix that, make sure we flush the release work at the end of
xe_display_pm_runtime_suspend_late(). We can do that unconditionally
because, if there is no pending work, that turns into a no-op.

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129164010.29887-4-gustavo.sousa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/xe/display: Extract xe_display_pm_runtime_suspend_late()

The current behavior for the runtime suspend case is that
xe_display_pm_suspend_late() is only called when D3cold is allowed.
Let's incorporate that behavior into a function specific to runtime PM
and call it xe_display_pm_runtime_suspend_late().

With that, we keep stuff a bit more self-contained and allow having a
place for adding more "late display runtime suspend"-related logic that
isn't dependent on the "D3cold allowed" state.

v2:
  - Fix typo in that caused xe_display_pm_runtime_suspend_late() to call
    itself instead of xe_display_pm_suspend_late().
  - Add the empty version of xe_display_pm_runtime_suspend_late() for
    the !CONFIG_DRM_XE_DISPLAY case.

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129164010.29887-3-gustavo.sousa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915/dmc_wl: Extract intel_dmc_wl_flush_release_work()

We will need to flush the release work from outside in an upcoming
change. Let's put that into a public interface and call it
intel_dmc_wl_flush_release_work().

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129164010.29887-2-gustavo.sousa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915/dp: use seq buf for printing rates

Hand rolling the buffer overflow handling with snprintf() is a bit
tedious. The seq_buf interface is made for this. Switch to it.

Use struct intel_display while at it.

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241127131838.3268735-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Eliminate pointless get_delay() macro

Now that we have pps_units_to_msecs(), get_delay() looks
rather pointless. Nuke it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-9-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Extract pps_units_to_msecs()

Add pps_units_to_msecs() as the counterpart to msecs_pps_units_to().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Extract msecs_to_pps_units()

Replace all the hand rolled *10 stuff with something a bit
more descriptive (msecs_to_pps_units()).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Spell out the eDP spec power sequencing delays a bit more clearly

We determine the "spec" eDP power sequencing delays
by referencing some max values from the eDP spec.
Write out each number from the spec explicitly instead
of precomputing the final number (that's the job of
the computer). Makes it a bit easier to see what the
supposed spec defined numbers actually are.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/lvds: Use struct intel_pps_delays for LVDS power sequencing

Reuse struct intel_pps_delays for the LVDS power
sequencing delays instead of hand rolling it all.
Perhaps in the future we could reuse some of the
same PPS code for both LVDS and eDP (assuming we
can decouple the PPS code from intel_dp...).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Rename intel_pps_delay members

Stop using the semi-random eDP spec T1,T3,... names for the
power sequencing delays, and instead call them by their human
readable names. Much easier to keep track what delay goes
where when you don't have to constantly cross reference against
the eDP spec.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Decouple pps delays from VBT struct definition

We currently lack a proper struct definition for the VBT power
squencing delays, and instead we use the same struct definition
(in intel_bios.h) for both the VBT layout and our driver side
state. Decouple those two things by moving the current struct
into intel_vbt_defs.h and adding a new one for the driver's use.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/pps: Store the power cycle delay without the +1

The code initializing the power sequencing delays is a bit
hard to follow. One confusing thing is that we keep doing the
+/-1 adjustment for the hardware register value in several places.
Simplify this a bit by doing the adjustment only when reading or
writing the actual register.

This also matches how the LVDS code does things.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106215859.25446-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/dsb: Nuke the MMIO->indexed register write logic

We've determined that indexed DSB writes are only faster
than MMIO writes when writing the same register ~5 or more
times. That seems very unlikely to happen in any other case
than when using indexed LUT registers. Simplify the code
by removing the MMIO->indexed write conversion logic and
just emit the instruction as an indexed write from the get go.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241120164123.12706-4-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drm/i915/color: Stop using non-posted DSB writes for legacy LUT

DSB LUT register writes vs. palette anti-collision logic
appear to interact in interesting ways:
- posted DSB writes simply vanish into thin air while
  anti-collision is active
- non-posted DSB writes actually get blocked by the anti-collision
  logic, but unfortunately this ends up hogging the bus for
  long enough that unrelated parallel CPU MMIO accesses start
  to disappear instead

Even though we are updating the LUT during vblank we aren't
immune to the anti-collision logic because it kicks in briefly
for pipe prefill (initiated at frame start). The safe time
window for performing the LUT update is thus between the
undelayed vblank and frame start. Turns out that with low
enough CDCLK frequency (DSB execution speed depends on CDCLK)
we can exceed that.

As we are currently using non-posted writes for the legacy LUT
updates, in which case we can hit the far more severe failure
mode. The problem is exacerbated by the fact that non-posted
writes are much slower than posted writes (~4x it seems).

To mititage the problem let's switch to using posted DSB
writes for legacy LUT updates (which will involve using the
double write approach to avoid other problems with DSB
vs. legacy LUT writes). Despite writing each register twice
this will in fact make the legacy LUT update faster when
compared to the non-posted write approach, making the
problem less likely to appear. The failure mode is also
less severe.

This isn't the 100% solution we need though. That will involve
estimating how long the LUT update will take, and pushing
frame start and/or delayed vblank forward to guarantee that
the update will have finished by the time the pipe prefill
starts...

Cc: stable@vger.kernel.org
Fixes: 34d8311f4a1c ("drm/i915/dsb: Re-instate DSB for LUT updates")
Fixes: 25ea3411bd23 ("drm/i915/dsb: Use non-posted register writes for legacy LUT")
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12494
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241120164123.12706-3-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drm/i915/dsb: Don't use indexed register writes needlessly

Turns out the DSB indexed register write command has
rather significant initial overhead compared to the normal
MMIO write command. Based on some quick experiments on TGL
you have to write the register at least ~5 times for the
indexed write command to come out ahead. If you write the
register less times than that the MMIO write is faster.

So it seems my automagic indexed write logic was a bit
misguided. Go back to the original approach only use
indexed writes for the cases we know will benefit from
it (indexed LUT register updates).

Currently we shouldn't have any cases where this truly
matters (just some rare double writes to the precision
LUT index registers), but we will need to switch the
legacy LUT updates to write each LUT register twice (to
avoid some palette anti-collision logic troubles).
This would be close to the worst case for using indexed
writes (two writes per register, and 256 separate registers).
Using the MMIO write command should shave off around 30%
of the execution time compared to using the indexed write
command.

Cc: stable@vger.kernel.org
Fixes: 34d8311f4a1c ("drm/i915/dsb: Re-instate DSB for LUT updates")
Fixes: 25ea3411bd23 ("drm/i915/dsb: Use non-posted register writes for legacy LUT")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241120164123.12706-2-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

Revert "drm/i915/dpt: Make DPT object unshrinkable"

This reverts commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c.

Now that we forcefully evict all DPT VMAs during suspend
there should be no problem allowing the shrinker to eat
the DPT objects.

Cc: Brian Geffon <bgeffon@google.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12965
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241127061117.25622-5-ville.syrjala@linux.intel.com
Acked-by: Brian Geffon <bgeffon@google.com>
Reviewed-by: Vidya Srinivas <vidya.srinivas@intel.com>
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>

drm/i915/dpt: Evict all DPT VMAs on suspend

Currently intel_dpt_resume() tries to blindly rewrite all the
PTEs for currently bound DPT VMAs. That is problematic because
the CPU mapping for the DPT is only really guaranteed to exist
while the DPT object has been pinned. In the past we worked
around this issue by making DPT objects unshrinkable, but that
is undesirable as it'll waste physical RAM.

Let's instead forcefully evict all the DPT VMAs on suspend,
thus guaranteeing that intel_dpt_resume() has nothing to do.
To guarantee that all the DPT VMAs are evictable by
intel_dpt_suspend() we need to flush the cleanup workqueue
after the display output has been shut down.

And for good measure throw in a few extra WARNs to catch
any mistakes.

Cc: Brian Geffon <bgeffon@google.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241127061117.25622-4-ville.syrjala@linux.intel.com
Reviewed-by: Vidya Srinivas <vidya.srinivas@intel.com>
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>

drm/i915: Intruduce display.wq.cleanup

Introduce a dedicated workqueue for the commit cleanup work.
In the future we'll need this to guarantee all the cleanup
works have finished at a specific point during suspend.

Cc: Brian Geffon <bgeffon@google.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241127061117.25622-3-ville.syrjala@linux.intel.com
Reviewed-by: Vidya Srinivas <vidya.srinivas@intel.com>
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>

drm/i915: Don't reuse commit_work for the cleanup

Currently we reuse the commit_work for a later cleanup step.
Let's not do that so that atomic ioctl handler won't accidentally
wait for the cleanup work when it really wants to just wait on the
commit_tail() part. We'll just add another work struct for the
cleanup.

Cc: Brian Geffon <bgeffon@google.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241127061117.25622-2-ville.syrjala@linux.intel.com
Reviewed-by: Vidya Srinivas <vidya.srinivas@intel.com>
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>

drm/i915/dislay: convert i9xx_display_sr.[ch] to struct intel_display

Going forward, struct intel_display is the main device data structure
for display. Switch to it.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241126101222.2671224-2-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: prefer DISPLAY_VER over GRAPHICS_VER in display s/r

Use display version checks for display scratch registers, not graphics
version. And for the older platforms it's the same thing anyway.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241126101222.2671224-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/ddi: clarify intel_ddi_connector_get_hw_state() for DP MST

encoder->get_hw_state() returns false for DP MST, and currently always
interprets 128b/132b as MST. Therefore the DDI MST mode checks in
intel_ddi_connector_get_hw_state() are redundant.

Prepare for future, and handle 128b/132b SST and warn on 8b/10b MST.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241125120959.2366419-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915: Fixed an typo in i915_gem_gtt.c

in function `i915_gem_gtt_reserve` @node comment,
i915_vma has no `mode` member, `i915_vma.node` is the correct name

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Zhang He <zhanghe9702@163.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241120123245.71101-1-zhanghe9702@163.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915/irq: emphasize display_irqs_enabled is only about VLV/CHV

Use display_irqs_enabled only on VLV/CHV where it's relevant. Rename to
vlv_display_irqs_enabled, to emphasize it's really only about VLV/CHV.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f60104ea59687cb8c65b18b4f9ddd832a643407d.1732102179.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/irq: hide display_irqs_enabled access

Move the check for display_irqs_enabled within vlv_display_irq_reset()
and vlv_display_irq_postinstall() to avoid looking at struct
intel_display members within i915 core irq code.

Within display irq code, vlv_display_irq_reset() may need to be called
with !display_irqs_enabled, so add a small wrapper.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ef43e26ebab7f84768391f5053c0eba44b647c89.1732102179.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/plane: convert initial plane setup to struct intel_display

struct intel_display replaces struct drm_i915_private as the main
display device pointer. Convert initial plane setup to it, as much as
possible.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9e370d8e90235165539f81ca2d00fdd2e883397f.1732102179.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/overlay: add intel_overlay_available() and use it

Avoid accessing struct intel_display members directly from
i915_getparam_ioctl(). Add intel_overlay_available() function to provide
the information for I915_PARAM_HAS_OVERLAY.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/26041645168ce3e76cb8f73bcb4c747619117e06.1732102179.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/overlay: convert to struct intel_display

struct intel_display replaces struct drm_i915_private as the main
display device pointer. Convert overlay to it, as much as possible.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3680586c05e82fd01d173cfb4f8df015d6db663c.1732102179.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/ddi: simplify intel_ddi_get_encoder_pipes() slightly

Use a temporary variable for DDI mode to simplify the conditions. This
is in line with the other places that read DDI mode.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/84892d31807bd8118474dd873e73c4d459f61448.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/ddi: refactor intel_ddi_connector_get_hw_state()

Refactor the switch-case into an if-ladder similar to
intel_ddi_read_func_ctl() for clarity.

This highlights how TRANS_DDI_MODE_SELECT_FDI_OR_128B132B works on
different platforms.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/191f0210d720f3113a092e1ef0c7996a7dee85a0.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/ddi: split up intel_ddi_read_func_ctl() by output type

The function has become quite long, and the switch-case statement quite
complex with the fallthrougs. Simplify by splitting to individual
functions and an if-ladder.

This highlights how TRANS_DDI_MODE_SELECT_FDI_OR_128B132B works on
different platforms.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2621df6e6b0b7ac75159cfb112755c35b30ce906.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/ddi: rename temp to ddi_func_ctl in intel_ddi_read_func_ctl()

The temp name is a bit vague for something used so much in the function.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/29d21b8f829e8139cc8ad857a86d3fc967f2ac07.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/dp: refactor clear/wait for act sent

Move clear_act_sent() and wait_for_act_sent() to intel_ddi.[ch] and make
independent of DP MST. They'll be needed for 128b/132b SST
operation. Rename accordingly.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ef05f5bc222e8ba48d84f75a9ea5dd29667055d2.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/reg: convert DP_TP_CTL/DP_TP_STATUS to REG_BIT() and friends

Use the modern style for defining register contents. Expand the status
register contents a bit.

TODO: There are more VC payload mapping fields, spanning more registers,
and have more bits on more recent platforms.

v2:
- Fix DP_TP_STATUS_STREAMS_ENABLED_MASK mask (Imre)
- Drop status VC3 payload mapping for now

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1ef15e6bb58ca847f89c9b39cbc9771cb57db408.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/ddi: use intel_ddi_* naming convention for encoder enable/disable

All the other encoder hooks are named intel_ddi_*, follow suit with
intel_ddi_enable() and intel_ddi_disable(), and the dp/hdmi variants.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9533cf61773f2cab3a6a29acf9e6ecfc00b6e8fd.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: unify MST topology callback naming to mst_topology_*

Make it easier to keep track of what belongs where.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e8efc8fddc3ca93e1256a1dad13bc4eca07c3382.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: simplify mst_connector_get_hw_state()

Use a variable for the encoder to simplify.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/eb8595ae36c6330cce1615059bd2c89a7db79668.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: unify MST connector function naming to mst_connector_*

Similar to commit 5674e700d43e ("drm/i915/mst: change naming from fake
encoders to MST stream encoders"), name all MST connector related
functions to mst_connector_*.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3d4814a94b97fcff88722e0effd2fb5893b256af.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: pass intel_dp around in mst stream helpers

All of the functions in question operate on the primary encoder, and
more specifically the primary intel_dp, so pass it around instead of the
encoder for less ambiguity.

Suggested-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/165ee8b723c42bcdeb3adf6a1b34ea09371e5d64.1732106557.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display/xe3lpd: Avoid setting YUV420_MODE in PIPE_MISC

For Xe3_LPD the PIPE_MISC YUV420 Enable (bit 27), already implies enabling
full blend YUV420 mode and YUV420 Mode (bit 26) is removed.
Therefore, avoid setting YUV420 Mode for Xe3_LPD+ while programming
PIPE_MISC for YCbCr420 output format.

Bspec: 69749
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113115531.3394962-1-ankit.k.nautiyal@intel.com

drm/i915/psr: Disable psr1 if setup_time > vblank

Issue is seen when PSR enabled with setup frames and when try to disable
PSR at SRDONACK State (0x1). PSR FSM is stuck at SRDONACK(0x1) for more
than 5 seconds. Issue not seen with Setup frames disabled. Currently
disable psr1 if setuptime > vblank to workaround the above issue.

HSD: 16024594674
WA: 18037818876

v1: Initial version
v2: Add debug log and some cosmetic changes. [Jouni, Jani, Nemesa]

Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241105103916.1857731-1-animesh.manna@intel.com

drm/i915/dp_mst: Fix connector initialization in intel_dp_add_mst_connector()

The connector initialization in intel_dp_add_mst_connector() depends on
the device pointer in connector to be valid, at least by connector
debug printing. The device pointer is initialized by drm_connector_init(),
however that function also exposes the connector to in-kernel users,
which can't be done before the connector is fully initialized. For now
make sure the device pointer is valid before it's used, until a
follow-up change moving this to DRM core.

This issue was revealed by the commit in the Fixes: line below, before
which the above debug printing checked and handled a NULL device pointer
gracefully in DRM core.

Cc: Jani Nikula <jani.nikula@intel.com>
Fixes: 529798bd786a ("drm/i915/mst: convert to struct intel_display")
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12799
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118131044.1278028-1-imre.deak@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/dp: Include the time taken by AUX Tx for timeout

As per DP spec the timeout for LANE_CHANNEL_EQ_DONE is 400ms. But this
timeout value is exclusively for the Aux RD Interval and excludes the
time consumed for the AUX Tx (i.e reading/writing FFE presets). Add
another 50ms for these AUX Tx to the 400ms timeout.
Ref: "Figure 3-52: 128b132b DP DPTC LANEx_CHANNEL_EQ_DONE Sequence" of
DP2.1a spec.

Co-developed-by: Srikanth V NagaVenkata <nagavenkata.srikanth.v@intel.com>
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240925034432.1777029-4-arun.r.murthy@intel.com

drm/i915/dp: read Aux RD interval just before setting the FFE preset

Figure 3-52: 128b132b DP DPTC LANEx_CHANNEL_EQ_DONE Sequence of
DP2.1a spec.
After reading LANEx_CHANNEL_EQ_DONE, read the FFE presets.
AUX_RD_INTERVAL and then write the new FFE presets.

v4: Read AUX_RD_INTERVAL before get/set TX FFE preset (Jani)

Co-developed-by: Srikanth V NagaVenkata <nagavenkata.srikanth.v@intel.com>
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011045825.2629469-1-arun.r.murthy@intel.com

drm/i915/dp: use fsleep instead of usleep_range for LT

Sleeping for < 10us use udelay, for 10us to 20ms use usleep_range() and
for > 10ms use msleep. flseep() will call the particular API based on
the above condition. (Documentation/timers/timers-howto.rst)
Aux RD Interval value depends on the value read from the dpcd register
which is updated from the sink device, hence use flseep.

Co-developed-by: Srikanth V NagaVenkata <nagavenkata.srikanth.v@intel.com>
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240925034432.1777029-2-arun.r.murthy@intel.com

drm/{i915, xe}: Move power_domains suspend/resume to display_power

Move intel_power_domains_{suspend,resume} to inside
intel_display_power_{suspend_late, resume_early}.

With this also change the VLV suspend failure to call
the intel_display_power_resume_early. In the end, the only
function executed there for VLV is the intel_power_domains_resume.
Besides make the code more consistency give the call that was
immediately before: intel_display_power_suspend_late.

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-7-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/xe/display: Delay dsm handler registration

Bring some consistency to register/unregister order at the
same time it aligns with i915 sequence order.

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-6-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/xe/display: Delay hpd_init resume

Align with i915 and only initialize hotplugs after the display driver
access has been resumed.

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-5-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/{i915, xe}/display: Move DP MST calls to display_driver

Move dp_mst suspend/resume functions from the drivers towards
intel_display_driver to continue with the unification.

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-4-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915/display: Move regfile registers intel_display.restore

The intel_display struct already has a place for save/restore
stuff. Move the i915's regfile there since they are only
related to display.

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-3-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915/display: Convert i915_suspend into i9xx_display_sr

These save & restore functions inside i915_suspend are old display
functions to save and restore a bunch of display related registers.

Move it under display and rename accordantly. Just don't move it
entirely towards intel_display struct yet because it depends
on drm_i915_private for the IS_MOBILE.

While doing this conversion also update the MIT header using
the new SPDX ones.

v2: Fix Makefile and include (Jani)
Removed vga and gmbus (Jani, Ville)

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-2-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915: Remove vga and gmbus seq out of i915_restore_display

Restrict this function to only save and restore registers
functionality. Then, that can be moved out later to under
display with a proper name.

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241113225016.208673-1-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915/dp: Limit max compressed bpp to 18 when forcing DSC

While forcing DSC when it is not actually required, the max compressed
bpp from the source gets picked for compression for some pipe bpps.
Apparently, when DSC is not required, forcing DSC to the maximum compressed
bpp seems to cause underruns.

To avoid this, limit the max compressed bpp to 18 while forcing DSC. This
value works across platforms with different pipe bpps and prevents
underruns.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Naga Venkata Srikanth V <nagavenkata.srikanth.v@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241030084100.1361689-1-ankit.k.nautiyal@intel.com

drm/i915/dp: add comments about hooks called from MST stream encoders

It would be best to have self-explanatory code, but lacking that, add
some comments about the way the DDI encoder hooks get called from DP MST
stream encoders.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5941b8ef48cac4d61de2e2806a80645de48e856c.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: change naming from fake encoders to MST stream encoders

The fake encoders pretty much match individual MST streams. The encoders
remain as fake as ever, but change the naming to MST stream
encoders. Rename all the encoder hooks and related functions called from
them to mst_stream_* to clarify what type of encoders the hooks are
called on.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/37d9572e884ca2fdd84ea6722b4b7cefde04eed9.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: convert to struct intel_display

struct intel_display will replace struct drm_i915_private as the main
display device data structure. Convert the DP MST code to struct
intel_display as much as possible.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/84c9923fccdd779f0ca713cab1d26a0c802b140c.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: make CHICKEN_TRANS() display version aware

Making register macros platform or display version aware is not exactly
something I want to promote widely, but in this case it's the lesser of
two evils. hsw_chicken_trans_reg() is not pretty, and it doesn't have a
suitable home.

v2: Rebase

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/712c17ee22537b0628aa32695743bc017b3fe332.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: use primary_encoder in fake mst encoder creation

Use a primary_encoder local variable in
intel_dp_create_fake_mst_encoder() for clarity.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7c9ad1db97550b7eacb1f010521704f623b0c689.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: introduce to_primary_encoder() and to_primary_dp()

Add helpers to_primary_encoder() and to_primary_dp() to convert fake MST
encoder pointers to primary encoder and DP pointers, respectively, and
use them.

The main point is to highlight the primary encoder and DP usage. Very
few places actually need the struct intel_dp_mst_encoder pointer, or the
primary struct intel_digital_port, so ditch them where possible for
clarity.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ff8786c04bae053055783f720f89a4d9f9815c70.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: rename intel_encoder to encoder

Switch to the modern style in fake mst encoder creation.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4d29387fba64b925c6ab4c108782a7b5ac22628a.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/mst: pass primary encoder to primary encoder hooks

Pass the primary encoder to the primary encoder hooks. This is
pedantically correct, but intel_ddi_post_pll_disable() also works with
the fake encoder by coincidence.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a0151fddfdd5ec11a26345232cdd3ae59c8cf56a.1731409802.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: add mobile platform group

Identify mobile platforms separately in display, using the platform
group mechanism. This enables dropping the dependency on i915_drv.h
IS_MOBILE() from display code.

v2: Make snb_display static (kernel test robot)

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2389fd58446e83a79ec57bc0b037679662037b9e.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: pass struct pci_dev * to intel_display_device_probe()

Convert intel_display_device_probe() to accept struct pci_dev * instead
of struct drm_i915_private *. Return struct intel_display * in
preparation of allocating the memory of it later.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ab4e960e3fff46cbeba185882b1e554f0ccd5877.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert display device identification to struct intel_display

Convert intel_display_device.[ch] to struct intel_display, including
callers, but excluding intel_display_device_probe() which will be
handled in follow-up.

v2: fix display->drm = display->drm goof-up

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/865b27b66f599e707081d46fca9f679e19a4e8aa.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: rename i915 parameter to __display in feature helpers

All the feature check helpers now support (and some require) passing
struct intel_display. Rename the parameter to __display to reflect the
fact.

v2: Rebase

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4933ded2efa9f333c560b6e634f60d4808614030.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_ULTRAJOINER() to struct intel_display

Convert HAS_ULTRAJOINER() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f562d35c94cf7ef18d261a9867d959a58f165f1e.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_HW_SAGV_WM() to struct intel_display

Convert HAS_HW_SAGV_WM() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

v2: Rebase

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com> # v1
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> # v1
Link: https://patchwork.freedesktop.org/patch/msgid/8babfd6f09df054d33d604a02e213200a3783737.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_SAGV() to struct intel_display

Convert HAS_SAGV() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c0f65566d08c4ab5296740367979beb1670d1c06.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_MBUS_JOINING() to struct intel_display

Convert HAS_MBUS_JOINING() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

v2: Rebase

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com> # v1
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> # v1
Link: https://patchwork.freedesktop.org/patch/msgid/c198dd5a0ab0a5f37edce3d18ddb4991cf3d4792.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_IPS() to struct intel_display

Convert HAS_IPS() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/55fd6063b30ca227483a479cff0012e5a915196d.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_GMBUS_BURST_READ() to struct intel_display

Convert HAS_GMBUS_BURST_READ() to struct intel_display. Do minimal
drive-by conversions to struct intel_display in the callers while at it.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/34dfafeccf6f8ddd5437c79e18978151bfd96c24.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_DP20() to struct intel_display

Convert HAS_DP20() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

v2: Rebase

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com> # v1
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> # v1
Link: https://patchwork.freedesktop.org/patch/msgid/757d91d2a57052b11cbd9f4f40d836d9245ca926.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_DOUBLE_BUFFERED_M_N() to struct intel_display

Convert HAS_DOUBLE_BUFFERED_M_N() to struct intel_display. Do minimal
drive-by conversions to struct intel_display in the callers while at it.

v2: Rebase

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d313d32ae411b86eedb86c4a4949dc84588362df.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_4TILE() to struct intel_display

Convert HAS_4TILE() to struct intel_display. Do minimal drive-by
conversions to struct intel_display in the callers while at it.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/123799e7c96d03d8eea7d9bea3d450e82c88ae5d.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: convert HAS_D12_PLANE_MINIMIZATION() to struct intel_display

Convert HAS_D12_PLANE_MINIMIZATION() to struct intel_display. Do minimal
drive-by conversions to struct intel_display in the callers while at it.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ed9402eb83ab301f3c1d60884376d715b2190fd3.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/display: identify discrete graphics

Identify discrete graphics separately in display, using the platform
group mechanism. This enables dropping the dependency on i915_drv.h
IS_DGFX() from display code.

Start grouping platform groups separately in INTEL_DISPLAY_PLATFORMS()
in anticipation of more groups to come.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c02230d26cc0d9dbd7ddcc064661b2ad03739b6a.1731321183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/hdcp: Fix when the first read and write are retried

Make sure that the first read/write in hdcp2_authentication_key_exchange
are only retried when we have either DP/DPMST encoder connected,
since we do this to give docks and dp encoders some extra time to
get their HDCP DPCD registers ready only for DP/DPMST encoders as
this issue is only observed here no need to burden other encoders
with extra retries as this causes the HDMI connector to have some
other timing issue and fails HDCP authentication.

--v2
-Add intent of patch [Chaitanya]
-Add reasoning for loop [Jani]
-Make sure we forfiet the 50ms wait for non DP/DPMST encoders.

--v3
-Remove the is_dp_encoder check [Jani/Chaitanya]
-Make the commit message more clearer [Jani]

Fixes: 9d5a05f86d2f ("drm/i915/hdcp: Retry first read and writes to downstream")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241104035951.517837-1-suraj.kandpal@intel.com