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

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 ef79fafe9dae
("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

drm/i915/plane: warn on non-zero plane offset

We assume the plane offset is 0. Warn if it's not. This also fixes a
warn on unused but set variable offset.

v2: initialize offset on the gen2/3 path (Ville)

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526172218.1597394-1-jani.nikula@intel.com

drm/i915/debugfs: stop using edid_blob_ptr

Only the EDID code and sysfs should look at the EDID property. Stop
using it.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602132321.3199445-1-jani.nikula@intel.com

drm/i915: Fix error handling if driver creation fails during probe

If i915_driver_create() fails to create a valid 'i915' object, we
should just disable the PCI device and return immediately without trying
to call i915_probe_error() that relies on a valid i915 pointer.

Fixes: 12e6f6dc78e4 ("drm/i915/display: Handle GMD_ID identification in display code")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/55236f93-dcc5-481e-b788-9f7e95b129d8@kili.mountain/
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230601173804.557756-1-matthew.d.roper@intel.com

drm/i915/display: Extract display init from intel_device_info_runtime_init

Moving display-specific runtime info initialization into display/ makes
the display code more self-contained and also makes it easier to call
from the Xe driver.

v2:
 - Drop unnecessary display/ prefix from #includes.  (Jani)
 - Clear runtime info if fusing leaves no pipes remaining, the same as
   we do when fusing indicates the entire display controller is
   unavailable.  (Jani)
 - Move adjustment of DRIVER_MODESET / DRIVER_ATOMIC after call to
   intel_display_device_info_runtime_init(); HAS_DISPLAY may have
   changed to false during the runtime init.  (Jani)

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/20230602181450.1151368-1-matthew.d.roper@intel.com

drm/i915: No 10bit gamma on desktop gen3 parts

Apparently desktop gen3 parts don't support the
10bit gamma mode at all. Stop claiming otherwise.

As is the case with pipe A on gen3 mobile parts, the
PIPECONF gamma mode bit can be set but it has no
effect on the output.

PNV seems to be the only slight exception, but generally
the desktop PNV variant looks more like a mobile part so
this is not entirely surprising.

Fixes: 67630bacae23 ("drm/i915: Add 10bit gamma mode for gen2/3")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531135625.3467-1-ville.syrjala@linux.intel.com

drm/i915/display: Print useful information on error

For modifier not supporting async flip, print the modifier and display
version. Helps in reading the error message.

v2: Reframe the error message (Jani)

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602022157.221225-1-arun.r.murthy@intel.com

drm/i915/mtl: Reset only one lane in case of MFD

In case when only two or less transmit lanes are owned such as MFD
(DP-alt with x2 lanes) we need to reset only one data lane (lane0).
With only x2 lanes we don't need to poll for the phy current
status on both data lanes since only the owned data lane will respond.

v2: Find better naming for lanes and revise the commit message (Luca)

Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> (v1)
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com> (v2)
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230601101314.332392-1-mika.kahola@intel.com

drm/i915: Use 18 fast wake AUX sync len

HW default for wake sync pulses is 18. 10 precharge and 8 preamble. There
is no reason to change this especially as it is causing problems with
certain eDP panels.

v3: Change "Fixes:" commit
v2: Remove "fast wake" repeat from subject

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Fixes: e1c71f8f9180 ("drm/i915: Fix fast wake AUX sync len")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530101649.2549949-1-jouni.hogander@intel.com

drm/i915/display: Set correct voltage level for 480MHz CDCLK

According to Bspec, the voltage level for 480MHz is to be set as 1
instead of 2.

BSpec: 49208

Fixes: 06f1b06dc5b7 ("drm/i915/display: Add 480 MHz CDCLK steps for RPL-U")

v2: rebase

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529060747.3972259-1-chaitanya.kumar.borah@intel.com

drm/i915: Flush power delayed put when connector init failed

When intel_dp_init_connector fails, some power wells used in dp aux
communication may not be completely disabled yet. This may result in a
null pointer dereference when icl_aux_pw_to_phy() is called from
icl_combo_phy_aux_power_well_disable() after the encoder and connector
are already freed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221222201804.1380963-1-maarten.lankhorst@linux.intel.com

drm/i915: Remove i915_drm_suspend_mode

enum i915_drm_suspend_mode suspend_mode is only used in
intel_display_power, while we only care about whether we perform a
s2idle. Remove it and use a simple bool.

v2: Rebase

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> # v1
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529105900.1942814-1-jani.nikula@intel.com

drm/i915_drm.h: fix a typo

 'rbiter' -> 'arbiter'

Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529112956.2083389-1-suijingfeng@loongson.cn

drm/i915/display: switch the rest of the connectors to struct drm_edid

Convert the remaining uses of struct edid based drm_get_edid(),
drm_connector_update_edid_property() and drm_add_edid_modes() calls to
the struct drm_edid based drm_edid_read_ddc(),
drm_edid_connector_update() and drm_edid_connector_add_modes().

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b1b53bb9004adaa402e061f7df2caf0eb4723a43.1685437501.git.jani.nikula@intel.com

drm/display/dp_mst: convert to struct drm_edid

Convert the topology manager to use struct drm_edid, add
drm_dp_mst_edid_read() that returns drm_edid, and rewrite the old
drm_dp_mst_get_edid() to use it.

Note that the old drm_get_edid() ended up calling
drm_connector_update_edid_property(). This responsibility is now
deferred to drivers, which all do it anyway after calling
drm_dp_mst_edid_read() or drm_dp_mst_get_edid().

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9c32e5c241934093fc4144eed4c01155e1f03af1.1685437501.git.jani.nikula@intel.com

drm/edid: make drm_edid_duplicate() safe to call with NULL parameter

It's a bit tedious to check for NULL before calling
drm_edid_duplicate(). Make it handle NULL parameter graciously.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1ae8923d39a5abd0260fdf7f9cc54c5e046e70d3.1685437501.git.jani.nikula@intel.com

drm/i915/lvds: switch to drm_edid_read_switcheroo()

Use drm_edid_read_switcheroo() to switch from struct edid to struct
drm_edid.

Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/429cd6f23366cb4cace4fa13cf92ad068aca64dd.1685437501.git.jani.nikula@intel.com

drm/edid: add drm_edid_read_switcheroo()

Add a switcheroo variant to the struct drm_edid based EDID read
functions.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4ab5ec994670ea50f95c8079c1f1ae915940b00f.1685437501.git.jani.nikula@intel.com

drm/i915/sdvo: stop caching has_hdmi_audio in struct intel_sdvo

Use the information stored in display info.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1e02f2f7381dfcee6e4160a5fc17aea6ff04baf9.1685437500.git.jani.nikula@intel.com

drm/i915/sdvo: stop caching has_hdmi_monitor in struct intel_sdvo

Use the information stored in display info.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3e9e1dcd554d470bdf474891a431b15e1880f9a0.1685437500.git.jani.nikula@intel.com

drm/i915/hdmi: stop caching has_hdmi_sink in struct intel_hdmi

Use the information stored in display info.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5cdb4731260b062c0f0ad2f8b64195c9a57bcb76.1685437500.git.jani.nikula@intel.com

drm/i915/hdmi: stop caching has_audio in struct intel_hdmi

Use the information stored in display info.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/710286536d6b07ba8aa068b65b2b2c0c7743220e.1685437500.git.jani.nikula@intel.com

drm/i915/dp: stop caching has_hdmi_sink in struct intel_dp

Use the information stored in display info. Add intel_dp_has_hdmi_sink()
helper to access it.

v2: Rebased

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/748103fda572b3552e5bbdafb300d8508d4eeaf4.1685437500.git.jani.nikula@intel.com

drm/i915/dp: stop caching has_audio in struct intel_dp

Use the information stored in display info.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/695bbe8b5ebee6e492f95a1c818da15691752dc8.1685437500.git.jani.nikula@intel.com

drm/display/dp_mst: drop has_audio from struct drm_dp_mst_port

Caching the has_audio in struct drm_dp_mst_port seems odd, and oddly
placed. Defer audio handling to drivers, and use the info from the
connector display info. i915 was the only one using it anyway.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7d9eefdf150870479c5797f027d4c2b0a19ff583.1685437500.git.jani.nikula@intel.com

drm/edid: parse display info has_audio similar to is_hdmi

Since we already iterate everything that's needed for determining audio,
reduce the need to call drm_detect_monitor_audio() by storing has_audio
to connector info.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/391a93b25c6bcbb39854aaa2813570cfb1580ed9.1685437500.git.jani.nikula@intel.com

drm/i915: use localized __diag_ignore_all() instead of per file

Use localized __diag_push(), __diag_ignore_all() with rationale, and
__diag_pop() for specific initializations instead of blanket disabling
of -Woverride-init across several files.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230525210653.1048972-1-jani.nikula@intel.com

Merge drm/drm-next into drm-intel-next

Sync the drm-intel-gt-next changes back to drm-intel-next via drm-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

drm/i915/hdcp: Rename comp_mutex to hdcp_mutex

Rename comp_mutex to hdcp_mutex as it does not just
protect component related variables which was a terminology
used when hdcp was to be binded as a mei component from MTL
we use gsc cs which does not use the component binding path
for HDCP.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529110740.1522985-4-suraj.kandpal@intel.com

drm/i915/hdcp: Move away from master naming to arbiter

Rename variables to move away from master convention to
arbiter
%s/hdcp.master/hdcp.arbiter
%s/i915_hdcp_master/i915_hdcp_arbiter
%s/comp_master/comp_arbiter

--v2
- delete i915_hdcp_comp_master redundant declaration [Chaitanya]
- use %s/foo/bar/ format in commit message to show changes [Chaitanya]

--v3
- replace i915_hdcp_comp_master declaration with i915_hdcp_arbiter
to avoid any compile fail with old compilers [Chaitanya]

Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529110740.1522985-3-suraj.kandpal@intel.com

drm/i915/hdcp: Rename dev_priv to i915

Rename dev_priv to i915 to keep up with latest code standards.

Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529110740.1522985-2-suraj.kandpal@intel.com

Merge tag 'drm-intel-gt-next-2023-05-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

UAPI Changes:

- New getparam for querying PXP support and load status

Cross-subsystem Changes:

- GSC/MEI proxy driver

Driver Changes:

Fixes/improvements/new stuff:

- Avoid clearing pre-allocated framebuffers with the TTM backend (Nirmoy Das)
- Implement framebuffer mmap support (Nirmoy Das)
- Disable sampler indirect state in bindless heap (Lionel Landwerlin)
- Avoid out-of-bounds access when loading HuC (Lucas De Marchi)
- Actually return an error if GuC version range check fails (John Harrison)
- Get mutex and rpm ref just once in hwm_power_max_write (Ashutosh Dixit)
- Disable PL1 power limit when loading GuC firmware (Ashutosh Dixit)
- Block in hwmon while waiting for GuC reset to complete (Ashutosh Dixit)
- Provide sysfs for SLPC efficient freq (Vinay Belgaumkar)
- Add support for total context runtime for GuC back-end (Umesh Nerlige Ramappa)
- Enable fdinfo for GuC backends (Umesh Nerlige Ramappa)
- Don't capture Gen8 regs on Xe devices (John Harrison)
- Fix error capture for virtual engines (John Harrison)
- Track patch level versions on reduced version firmware files (John Harrison)
- Decode another GuC load failure case (John Harrison)
- GuC loading and firmware table handling fixes (John Harrison)
- Fix confused register capture list creation (John Harrison)
- Dump error capture to kernel log (John Harrison)
- Dump error capture to dmesg on CTB error (John Harrison)
- Disable rps_boost debugfs when SLPC is used (Vinay Belgaumkar)

Future platform enablement:

- Disable stolen memory backed FB for A0 [mtl] (Nirmoy Das)
- Various refactors for multi-tile enablement (Andi Shyti, Tejas Upadhyay)
- Extend Wa_22011802037 to MTL A-step (Madhumitha Tolakanahalli Pradeep)
- WA to clear RDOP clock gating [mtl] (Haridhar Kalvala)
- Set has_llc=0 [mtl] (Fei Yang)
- Define MOCS and PAT tables for MTL (Madhumitha Tolakanahalli Pradeep)
- Add PTE encode function [mtl] (Fei Yang)
- fix mocs selftest [mtl] (Fei Yang)
- Workaround coherency issue for Media [mtl] (Fei Yang)
- Add workaround 14018778641 [mtl] (Tejas Upadhyay)
- Implement Wa_14019141245 [mtl] (Radhakrishna Sripada)
- Fix the wa number for Wa_22016670082 [mtl] (Radhakrishna Sripada)
- Use correct huge page manager for MTL (Jonathan Cavitt)
- GSC/MEI support for Meteorlake (Alexander Usyskin, Daniele Ceraolo Spurio)
- Define GuC firmware version for MTL (John Harrison)
- Drop FLAT CCS check [mtl] (Pallavi Mishra)
- Add MTL for remapping CCS FBs [mtl] (Clint Taylor)
- Meteorlake PXP enablement (Alan Previn)
- Do not enable render power-gating on MTL (Andrzej Hajda)
- Add MTL performance tuning changes (Radhakrishna Sripada)
- Extend Wa_16014892111 to MTL A-step (Radhakrishna Sripada)
- PMU multi-tile support (Tvrtko Ursulin)
- End support for set caching ioctl [mtl] (Fei Yang)

Driver refactors:

- Use i915 instead of dev_priv insied the file_priv structure (Andi Shyti)
- Use proper parameter naming in for_each_engine() (Andi Shyti)
- Use gt_err for GT info (Tejas Upadhyay)
- Consolidate duplicated capture list code (John Harrison)
- Capture list naming clean up (John Harrison)
- Use kernel-doc -Werror when CONFIG_DRM_I915_WERROR=y (Jani Nikula)
- Preparation for using PAT index (Fei Yang)
- Use pat_index instead of cache_level (Fei Yang)

Miscellaneous:

- Fix memory leaks in i915 selftests (Cong Liu)
- Record GT error for gt failure (Tejas Upadhyay)
- Migrate platform-dependent mock hugepage selftests to live (Jonathan Cavitt)
- Update the SLPC selftest (Vinay Belgaumkar)
- Throw out set() wrapper (Jani Nikula)
- Large driver kernel doc cleanup (Jani Nikula)
- Fix probe injection CI failures after recent change (John Harrison)
- Make unexpected firmware versions an error in debug builds (John Harrison)
- Silence UBSAN uninitialized bool variable warning (Ashutosh Dixit)
- Fix memory leaks in function live_nop_switch (Cong Liu)

Merges:

- Merge drm/drm-next into drm-intel-gt-next (Joonas Lahtinen)

Signed-off-by: Dave Airlie <airlied@redhat.com>
# Conflicts:
# drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZG5SxCWRSkZhTDtY@tursulin-desk

drm/i915: Implement CTM property support for VLV

VLV has a so called "wide gamut color correction" unit (WGC).
What it is is a 3x3 matrix similar to the later CHV CGM
CSC, with less precisions/range. In fact CHV also has the WGC
but using it there doesn't really make sense when you have the
superior CGM CSC around.

Hook up the necessary stuff to expose the WGC as the CTM
crtc property.

One additional crazy idea that came to mind would be to use
the WGC as an output CSC on CHV for YCbCr output. But it
would be incompatible with the legacy LUT usage. In fact
since the WGC lacks post-offsets we'd probably have to
use the legacy LUT to do that final part of the RGB->YCbCr
conversion. Sounds doable, but perhaps not worth the hassle.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413164916.4221-6-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drm/i915: Always enable CGM CSC on CHV

On CHV toggling the CGM CSC on/off while the pipe is running leads
to underruns. Looks like we'd have to do the toggling strictly inside
the start_of_vblank-frame_start window to avoid this, but that window
is less than a scanline so there's no way we can guarantee hitting it.

As a workaround let's just leave the CGM CSC permanently enabled.
Fortunately the CGM gamma/degamma units don't seem to suffer from
this malady.

I also tried turning off CGM unit clock gating, but that did not
help.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413164916.4221-5-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drm/i915: Fix CHV CGM CSC coefficient sign handling

The CHV CGM CSC coefficients are in s4.12 two's complement
format. Fix the CTM->CGM conversion to handle that correctly
instead of pretending that the hw coefficients are also
in some sign-magnitude format.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413164916.4221-4-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drm/i915: Expose crtc CTM property on ilk/snb

The ilk/snb code is internally fully capable of handling the
CTM property, so expose it.

Note that we still choose not to expose DEGAMMA_LUT though.
The hardware is capable if degamma or gamma, but not both
simultanously due to lack of the split gamma mode. Exposing
both LUTs might encourage userspace to try enabling both
at the same time.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413164916.4221-3-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drm/i915: Fix clang -Wimplicit-fallthrough in intel_async_flip_check_hw()

Clang warns:

  drivers/gpu/drm/i915/display/intel_display.c:6012:3: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
                  case I915_FORMAT_MOD_X_TILED:
                  ^
  drivers/gpu/drm/i915/display/intel_display.c:6012:3: note: insert 'break;' to avoid fall-through
                  case I915_FORMAT_MOD_X_TILED:
                  ^
                  break;
  1 error generated.

Clang is a little more pedantic than GCC, which does not warn when
falling through to a case that is just break or return. Clang's version
is more in line with the kernel's own stance in deprecated.rst, which
states that all switch/case blocks must end in either break,
fallthrough, continue, goto, or return. Add the missing break to silence
the warning.

Fixes: 937859485aef ("drm/i915: Support Async Flip on Linear buffers")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/202305241902.UvHtMoxa-lkp@intel.com/
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Closes: https://lore.kernel.org/CA+G9fYv68V3ewK0Qj-syQj7qX-hQr0H1MFL=QFNuDoE_J2Zu-g@mail.gmail.com/
Reported-by: Tom Rix <trix@redhat.com>
Closes: https://lore.kernel.org/all/20230523125116.1669057-1-trix@redhat.com/
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524-intel_async_flip_check_hw-implicit-fallthrough-v1-1-83de89e376a1@kernel.org

Merge tag 'drm-misc-next-2023-05-24' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.5:

UAPI Changes:

Cross-subsystem Changes:

 * fbdev: Move framebuffer I/O helpers to <asm/fb.h>, fix naming

 * firmware: Init sysfb as early as possible

Core Changes:

 * DRM scheduler: Rename interfaces

 * ttm: Store ttm_device_funcs in .rodata

 * Replace strlcpy() with strscpy() in various places

 * Cleanups

Driver Changes:

 * bridge: analogix: Fix endless probe loop; samsung-dsim: Support
   swapping clock/data polarity; tc358767: Use devm_ Cleanups;

 * gma500: Fix I/O-memory access

 * panel: boe-tv101wum-nl6: Improve initialization;  sharp-ls043t1le001:
  Mode fixes;  simple: Add BOE EV121WXM-N10-1850 plus DT bindings;
  AddS6D7AA0 plus DT bindings;  Cleanups

 * ssd1307x: Style fixes

 * sun4i: Release clocks

 * msm: Fix I/O-memory access

 * nouveau: Cleanups

 * shmobile: Support Renesas; Enable framebuffer console; Various fixes

 * vkms: Fix RGB565 conversion

Signed-off-by: Dave Airlie <airlied@redhat.com>
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# gpg: Signature made Wed 24 May 2023 22:39:13 AEST
# gpg:                using RSA key 7217FBAC8CE9CF6344A168E5680DC11D530B7A23
# gpg: Can't check signature: No public key

# Conflicts:
# MAINTAINERS
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524124237.GA25416@linux-uq9g

drm/i915/display: Move feature test macros to intel_display_device.h

It makes sense to keep the display feature test macros centralized
within the display code.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523195609.73627-7-matthew.d.roper@intel.com

drm/i915/display: Handle GMD_ID identification in display code

For platforms with GMD_ID support (i.e., everything MTL and beyond),
identification of the display IP present should be based on the contents
of the GMD_ID register rather than a PCI devid match.

Note that since GMD_ID readout requires access to the PCI BAR, a slight
change to the driver init sequence is needed --- pci_enable_device() is
now called before i915_driver_create().

v2:
 - Fix use of uninitialized i915 pointer in error path if
   pci_enable_device() fails before the i915 device is created.  (lkp)
 - Use drm_device parameter to intel_display_device_probe.  This goes
   against i915 conventions, but since the primary goal here is to make
   it easy to call this function from other drivers (like Xe) and since
   we don't need anything from the i915 structure, this seems like an
   exception where drm_device is a more natural fit.
v3:
 - Go back do drm_i915_private for intel_display_device_probe.  (Jani)
 - Move forward decl to top of header.  (Jani)

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523195609.73627-6-matthew.d.roper@intel.com

drm/i915/display: Make display responsible for probing its own IP

Rather than selecting the display IP and feature flags at the same time
the general PCI probing happens, move this step into the display code
itself so that it can be more easily re-used outside of i915 (i.e., by
the Xe driver).

v2:
 - Make intel_display_device_probe() always return a non-NULL pointer
   and simplify copying of runtime_defaults.  (Andrzej)
v3:
 - Redefine INTEL_VGA_DEVICE/INTEL_QUANTA_DEVICE to eliminate a cast and
   an include of linux/mod_devicetable.h.  (Jani)
 - Keep explicit memcpy for runtime defaults.  (Jani)

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523195609.73627-5-matthew.d.roper@intel.com

drm/i915/display: Move display runtime info to display structure

Move the runtime info specific to display into display-specific
structures as has already been done with the constant display info.

v2:
 - Rename __runtime to __runtime_defaults for more clarity on the
   purpose.  (Andrzej)
 - Move introduction of DISPLAY_INFO() to previous patch.  (Andrzej)
 - Drop NO_DISPLAY macro.  (Andrzej)
v3:
 - Use "{}" instead of "{ 0 }" for empty struct init.  (Jani)

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523195609.73627-4-matthew.d.roper@intel.com

drm/i915: Convert INTEL_INFO()->display to a pointer

Rather than embeddeding the display's device info within the main device
info structure, just provide a pointer to the display-specific
structure.  This is in preparation for moving the display device info
definitions into the display code itself and for eventually allowing the
pointer to be assigned at runtime on platforms that use GMD_ID for
device identification.

In the future, this will also eventually allow the same display device
info structures to be used outside the current i915 code (e.g., from the
Xe driver).

v2:
 - Move introduction of DISPLAY_INFO() to this patch.  (Andrzej)
v3:
 - Also use DISPLAY_INFO() in intel_display_reg_defs.h.  (Andrzej)
 - Use "{}" instead of "{ 0 }" for empty struct init.  (Jani)

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523195609.73627-3-matthew.d.roper@intel.com

drm/i915/display: Move display device info to header under display/

Moving display-specific substructure definitions will help keep display
more self-contained and make it easier to re-use in other drivers (i.e.,
Xe) in the future.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523195609.73627-2-matthew.d.roper@intel.com

drm/i915: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522155228.2336755-1-azeemshaikh38@gmail.com

drm: shmobile: Make DRM_SHMOBILE visible on Renesas SoC platforms

The LCD Controller supported by the drm-shmob driver is present
on SuperH SH-Mobile SoCs, and on Renesas ARM SH/R-Mobile SoCs.
Unfortunately its config option is not visible on either, so the user
can never enable the support.

Fix this by dropping the dependency on ARM (for SuperH), and by widening
the dependency range to ARCH_RENESAS (for ARM).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/40ac67e0887d833ab4a3f1ec24828dedf0d8e108.1684854992.git.geert+renesas@glider.be

drm: shmobile: Add missing call to drm_fbdev_generic_setup()

Set up generic fbdev emulation, to enable support for the Linux console.

Use 16 as the preferred depth, as that is a good compromise between
colorfulness and resource utilization, and the default of the fbdev
driver.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/c836938112fda21762bc9eb2741ccd0cbf1197ef.1684854992.git.geert+renesas@glider.be

drm: shmobile: Switch to drm_crtc_init_with_planes()

The SH-Mobile DRM driver uses the legacy drm_crtc_init(), which
advertizes only the formats in safe_modeset_formats[] (XR24 and AR24) as
being supported.

Switch to drm_crtc_init_with_planes(), and advertize all supported
(A)RGB modes, so we can use RGB565 as the default mode for the console.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/2098de3d33bc479a8569da7dcbafdb685ff0a13a.1684854992.git.geert+renesas@glider.be

drm: shmobile: Add support for DRM_FORMAT_XRGB8888

DRM_FORMAT_XRGB8888 aka XR24 is the modus francus of DRM, and should be
supported by all drivers.

The handling for DRM_FORMAT_XRGB8888 is similar to DRM_FORMAT_ARGB8888,
just ignore the alpha channel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/888cde6d1f70f1610931c4a89801060bb6765ff2.1684854992.git.geert+renesas@glider.be

drm: shmobile: Use %p4cc to print fourcc codes

Replace the printing of hexadecimal fourcc format codes by
pretty-printed format names, using the "%p4cc" format specifier.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1a63e5afc8a85f7ae10f7f4395c2d065ba1aeb59.1684854992.git.geert+renesas@glider.be

dma-buf/sw_sync: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523021943.2406847-1-azeemshaikh38@gmail.com

drm/panel: samsung-s6d7aa0: use pointer for drm_mode in panel desc struct

Fixes compilation issues with older GCC versions and Clang after
changes introduced in commit 6810bb390282 ("drm/panel: Add Samsung
S6D7AA0 panel controller driver"). Tested with GCC 13.1.1, GCC 6.4.0
and Clang 16.0.3.

Fixes the following errors with Clang:

  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:312:14: error: initializer element is not a compile-time constant
          .drm_mode = s6d7aa0_lsl080al02_mode,
                      ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:415:14: error: initializer element is not a compile-time constant
          .drm_mode = s6d7aa0_lsl080al03_mode,
                      ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:443:14: error: initializer element is not a compile-time constant
          .drm_mode = s6d7aa0_ltl101at01_mode,
                      ^~~~~~~~~~~~~~~~~~~~~~~
  3 errors generated.

Fixes the following errors with GCC:

  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:312:14: error: initializer element is not constant
    .drm_mode = s6d7aa0_lsl080al02_mode,
                ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:312:14: note: (near initialization for 's6d7aa0_lsl080al02_desc.drm_mode')
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:415:14: error: initializer element is not constant
    .drm_mode = s6d7aa0_lsl080al03_mode,
                ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:415:14: note: (near initialization for 's6d7aa0_lsl080al03_desc.drm_mode')
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:443:14: error: initializer element is not constant
    .drm_mode = s6d7aa0_ltl101at01_mode,
                ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:443:14: note: (near initialization for 's6d7aa0_ltl101at01_desc.drm_mode')

Reported-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/lkml/20230523180212.GA1401867@dev-arch.thelio-3990X
Reported-by: kernelci.org bot <bot@kernelci.org>
Link: https://lore.kernel.org/llvm/646c6def.a70a0220.58c1a.903d@mx.google.com
Fixes: 6810bb390282 ("drm/panel: Add Samsung S6D7AA0 panel controller driver")
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524084324.11840-1-aweber.kernel@gmail.com

drm/i915: Wait for active retire before i915_active_fini()

i915_active_fini() finalizes the debug object, which can occur before
the active retires and deactivates the debug object. Wait for one
final time before calling i915_active_fini();

Closes:: https://gitlab.freedesktop.org/drm/intel/-/issues/8311
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522124205.368-1-nirmoy.das@intel.com

drm/bridge: dw-hdmi: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522155210.2336690-1-azeemshaikh38@gmail.com

drm/bridge: anx7625: Prevent endless probe loop

During probe, the driver registers i2c dummy devices and populates the
aux bus, which registers a device for the panel. After doing that, the
driver can still defer probe if needed. This ordering of operations is
troublesome however, because the deferred probe work will retry probing
all pending devices every time a new device is registered. Therefore, if
modules need to be loaded in order to satisfy the dependencies for this
driver to complete probe, the kernel will stall, since it'll keep trying
to probe the anx7625 driver, but never succeed, given that modules would
only be loaded after the deferred probe work completes.

Two changes are required to avoid this issue:
* Move of_find_mipi_dsi_host_by_node(), which can defer probe, to before
  anx7625_register_i2c_dummy_clients() and
  devm_of_dp_aux_populate_ep_devices(), which register devices.
* Make use of the done_probing callback when populating the aux bus,
  so that the bridge registration is only done after the panel is
  probed. This is required because the panel might need to defer probe,
  but the aux bus population needs the i2c dummy devices working, so
  this call couldn't just be moved to an earlier point in probe.
  One caveat is that if the panel is described outside the aux bus, the
  probe loop issue can still happen, but we don't have a way to avoid
  it in that case since there's no callback available.

With this patch applied, it's possible to boot on
mt8192-asurada-spherion with

CONFIG_DRM_ANALOGIX_ANX7625=y
CONFIG_MTK_MMSYS=m
CONFIG_BACKLIGHT_PWM=y

and also with

CONFIG_DRM_ANALOGIX_ANX7625=y
CONFIG_MTK_MMSYS=y
CONFIG_BACKLIGHT_PWM=m

Fixes: adca62ec370c ("drm/bridge: anx7625: Support reading edid through aux channel")
Fixes: 269332997a16 ("drm/bridge: anx7625: Return -EPROBE_DEFER if the dsi host was not found")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230518193902.891121-1-nfraprado@collabora.com

drm/msm: Use struct fb_info.screen_buffer

The fbdev framebuffer is in system memory. Store the address in
the field 'screen_buffer'. Fixes the following sparse warning.

../drivers/gpu/drm/msm/msm_fbdev.c:124:26: warning: incorrect type in assignment (different address spaces)
../drivers/gpu/drm/msm/msm_fbdev.c:124:26:    expected char [noderef] __iomem *screen_base
../drivers/gpu/drm/msm/msm_fbdev.c:124:26:    got void *

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522191701.13406-1-tzimmermann@suse.de

drm/gma500: Clear fbdev framebuffer with fb_memset_io()

The fbdev framebuffer is I/O memory, so clear it with fb_memset_io().
Fixes the following sparse warning:

../drivers/gpu/drm/gma500/fbdev.c:234:20: warning: incorrect type in argument 1 (different address spaces)
../drivers/gpu/drm/gma500/fbdev.c:234:20:    expected void *s
../drivers/gpu/drm/gma500/fbdev.c:234:20:    got char [noderef] __iomem *screen_base

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522190637.7039-1-tzimmermann@suse.de

drm/i915/mtl: end support for set caching ioctl

The design is to keep Buffer Object's caching policy immutable through
out its life cycle. This patch ends the support for set caching ioctl
from MTL onward. While doing that we also set BO's to be 1-way coherent
at creation time because GPU is no longer automatically snooping CPU
cache. For userspace components needing to fine tune the caching policy
for BO's, a follow up patch will extend the GEM_CREATE uAPI to allow
them specify caching mode at BO creation time.

Signed-off-by: Fei Yang <fei.yang@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519051103.3404990-2-fei.yang@intel.com

drm/i915/pmu: Export counters from all tiles

Start exporting frequency and RC6 counters from all tiles.

Existing counters keep their names and config values and new one use the
namespace added in the previous patch, with the "-gtN" added to their
names.

Interrupts counter is an odd one off. Because it is the global device
counters (not only GT) we choose not to add per tile versions for now.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-8-umesh.nerlige.ramappa@intel.com

drm/i915/pmu: Prepare for multi-tile non-engine counters

Reserve some bits in the counter config namespace which will carry the
tile id and prepare the code to handle this.

No per tile counters have been added yet.

v2:
- Fix checkpatch issues
- Use 4 bits for gt id in non-engine counters. Drop FIXME.
- Set MAX GTs to 4. Drop FIXME.

v3: (Ashutosh, Tvrtko)
- Drop BUG_ON that would never fire
- Make enable u64
- Pull in some code from next patch

v4: Set I915_PMU_MAX_GTS to 2 (Tvrtko)

v5: s/u64/u32 where needed (Ashutosh)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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/20230519154946.3751971-7-umesh.nerlige.ramappa@intel.com

drm/i915/pmu: Add reference counting to the sampling timer

We do not want to have timers per tile and waste CPU cycles and energy via
multiple wake-up sources, for a relatively un-important task of PMU
sampling, so keeping a single timer works well. But we also do not want
the first GT which goes idle to turn off the timer.

Add some reference counting, via a mask of unparked GTs, to solve this.

v2: Drop the check for unparked in i915_sample (Ashutosh)
v3: Revert v2 (Tvrtko)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
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/20230519154946.3751971-6-umesh.nerlige.ramappa@intel.com

drm/i915/pmu: Transform PMU parking code to be GT based

Trivial prep work for full multi-tile enablement later.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-5-umesh.nerlige.ramappa@intel.com

drm/i915/pmu: Skip sampling engines with no enabled counters

As we have more and more engines do not waste time sampling the ones no-
one is monitoring.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-4-umesh.nerlige.ramappa@intel.com

drm/i915/pmu: Support PMU for all engines

Given how the metrics are already exported, we also need to run sampling
over engines from all GTs.

Problem of GT frequencies is left for later.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-3-umesh.nerlige.ramappa@intel.com

drm/i915/pmu: Change bitmask of enabled events to u32

Having it as u64 was a confusing (but harmless) mistake.

Also add some asserts to make sure the internal field does not overflow
in the future.

v2: Fix WARN_ON firing for INTERRUPT event (Umesh)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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/20230519154946.3751971-2-umesh.nerlige.ramappa@intel.com

drm/nouveau/acr/ga102: set variable ga102_gsps storage-class-specifier to static

smatch reports
drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga102.c:49:1: warning: symbol
  'ga102_gsps' was not declared. Should it be static?

This variable is only used in its defining file, so it should be static

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517133112.873856-1-trix@redhat.com

drm/nouveau: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511175443.281970-1-krzysztof.kozlowski@linaro.org

drm/nouveau: dispnv50: fix missing-prototypes warning

nv50_display_create() is declared in another header, along with
a couple of declarations that are now outdated:

drivers/gpu/drm/nouveau/dispnv50/disp.c:2517:1: error: no previous prototype for 'nv50_display_create'

Fixes: ba801ef068c1 ("drm/nouveau/kms: display destroy/init/fini hooks can be static")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417210329.2469722-1-arnd@kernel.org

drm: bridge: samsung-dsim: Implement support for clock/data polarity swap

Implement support for DSI clock and data lane DN/DP polarity swap by
means of decoding 'lane-polarities' DT property. The controller does
support DN/DP swap of clock lane and all data lanes, the controller
does not support polarity swap of individual data lane bundles, add
a check which verifies all data lanes have the same polarity.

This has been validated on an imx8mm board that actually has the MIPI DSI
clock lanes inverted.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230514114625.98372-2-festevam@gmail.com

dt-bindings: samsung,mipi-dsim: Add 'lane-polarities'

The Samsung DSIM IP block allows the inversion of the clock and
data lanes.

Add an optional property called 'lane-polarities' that describes the
polarities of the MIPI DSI clock and data lanes.

This property is useful for properly describing the hardware when the
board designer decided to switch the polarities of the MIPI DSI
clock and/or data lanes.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230514114625.98372-1-festevam@gmail.com

drm/i915: Support Async Flip on Linear buffers

Starting from Gen12 Async Flip is supported on linear buffers.
This patch enables support for async on linear buffer.

UseCase: In Hybrid graphics, for hardware unsupported pixel formats it
will be converted to linear memory and then composed.

v2: Added use case
v3: Added FIXME for ICL indicating the restrictions

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220906041806.4095575-1-arun.r.murthy@intel.com

MAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver

Add myself as maintainer of the Samsung S6D7AA0 panel driver.

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519170354.29610-4-aweber.kernel@gmail.com

drm/panel: Add Samsung S6D7AA0 panel controller driver

Initial driver for S6D7AA0-controlled panels. Currently, the following
panels are supported:

 - S6D7AA0-LSL080AL02 (Samsung Galaxy Tab 3 8.0)
 - S6D7AA0-LSL080AL03 (Samsung Galaxy Tab A 8.0 2015)
 - S6D7AA0-LTL101AT01 (Samsung Galaxy Tab A 9.7 2015)

It should be possible to extend this driver to work with other panels
using this IC.

Tested-by: Nikita Travkin <nikita@trvn.ru> #ltl101at01
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519170354.29610-3-aweber.kernel@gmail.com

dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller

Add bindings for the S6D7AA0 LCD panel controller, including the
S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family
of tablets, and the S6D7AA0-LSL080AL03 and S6D7AA0-LTL101AT01 panels
used in the Samsung Galaxy Tab A 8.0 and 9.7 2015.

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519170354.29610-2-aweber.kernel@gmail.com

drm/i915: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511175446.282041-1-krzysztof.kozlowski@linaro.org

drm/display/dsc: add YCbCr 4:2:2 and 4:2:0 RC parameters

Include RC parameters for YCbCr 4:2:2 and 4:2:0 configurations.

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-9-dmitry.baryshkov@linaro.org
Acked-by: Dave Airlie <airlied@redhat.com>

drm/display/dsc: include the rest of pre-SCR parameters

DSC model contains pre-SCR RC parameters for other bpp/bpc combinations,
include them here for completeness. The values were generated from the
'pre_scr_cfg_files_for_reference' files found in DSC models 20210623.
The same fileset is a part of DSC model 20161212.

Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-8-dmitry.baryshkov@linaro.org
Acked-by: Dave Airlie <airlied@redhat.com>

drm/display/dsc: split DSC 1.2 and DSC 1.1 (pre-SCR) parameters

The array of rc_parameters contains a mixture of parameters from DSC 1.1
and DSC 1.2 standards. Split these tow configuration arrays in
preparation to adding more configuration data.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Suraj Kandpal
Reviewed-by: Suraj Kandpal
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-7-dmitry.baryshkov@linaro.org
Acked-by: Dave Airlie <airlied@redhat.com>

drm/display/dsc: use flat array for rc_parameters lookup

Next commits are going to add support for additional RC parameter lookup
tables. These tables are going to use different bpp/bpc combinations,
thus it makes little sense to keep the 2d array for RC parameters.
Switch to using the flat array.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-6-dmitry.baryshkov@linaro.org
Acked-by: Dave Airlie <airlied@redhat.com>

drm/i915/dsc: stop using interim structure for calculated params

Stop using an interim structure rc_parameters for storing calculated
params and then setting drm_dsc_config using that structure. Instead put
calculated params into the struct drm_dsc_config directly.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-5-dmitry.baryshkov@linaro.org

drm/i915/dsc: move DSC tables to DRM DSC helper

Move DSC RC tables to DRM DSC helper. No additional code changes
and/or cleanups are a part of this commit, it will be cleaned up in the
followup commits.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-4-dmitry.baryshkov@linaro.org
Acked-by: Dave Airlie <airlied@redhat.com>

drm/i915/dsc: move rc_buf_thresh values to common helper

The rc_buf_thresh values are common to all DSC implementations. Move
them to the common helper together with the code to propagate them to
the drm_dsc_config.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-3-dmitry.baryshkov@linaro.org
Acked-by: Dave Airlie <airlied@redhat.com>

drm/i915/dsc: change DSC param tables to follow the DSC model

After cross-checking DSC models (20150914, 20161212, 20210623) change
values in rc_parameters tables to follow config files present inside
the DSC model. Handle two places, where i915 tables diverged from the
model, by patching the rc values in the code.

Note: I left one case uncorrected, 8bpp/10bpc/range_max_qp[0], because
the table in the VESA DSC 1.1 sets it to 4.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-2-dmitry.baryshkov@linaro.org

drm/i915: Fix memory leaks in function live_nop_switch

Be sure to properly free the allocated memory before exiting
the live_nop_switch function.

Signed-off-by: Cong Liu <liucong2@kylinos.cn>
Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517050204.4111874-1-liucong2@kylinos.cn

drm/i915/hdmi: C20 computed PLL frequencies

Use algorithm to generate HDMI C20 PLL clock frequencies.

v2: checkpatch fixes

BSPEC: 64568
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
[mattrope: Wrapped one overly long line]
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515231725.3815199-3-clinton.a.taylor@intel.com

drm/i915: Add 16bit register/mask operators

Add the support macros to define/extract bits as 16bits.

v2: checkpatch fixes
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515231725.3815199-2-clinton.a.taylor@intel.com

drm/sched: Rename to drm_sched_wakeup_if_can_queue()

Rename drm_sched_wakeup() to drm_sched_wakeup_if_canqueue() since the former
is misleading, as it wakes up the GPU scheduler _only if_ more jobs can be
queued to the underlying hardware.

This distinction is important to make, since the wake conditional in the GPU
scheduler thread wakes up when other conditions are also true, e.g. when there
are jobs to be cleaned. For instance, a user might want to wake up the
scheduler only because there are more jobs to clean, but whether we can queue
more jobs is irrelevant.

v2: Separate "canqueue" to "can_queue". (Alex D.)

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://lore.kernel.org/r/20230517233550.377847-2-luben.tuikov@amd.com
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>

drm/sched: Rename to drm_sched_can_queue()

Rename drm_sched_ready() to drm_sched_can_queue(). "ready" can mean many
things and is thus meaningless in this context. Instead, rename to a name
which precisely conveys what is being checked.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Link: https://lore.kernel.org/r/20230517233550.377847-1-luben.tuikov@amd.com

Merge tag 'drm-misc-next-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.5:

UAPI Changes:

Cross-subsystem Changes:
 - arch: Consolidate <asm/fb.h>

Core Changes:
 - aperture: Ignore firmware framebuffers with non-primary devices
 - fbdev: Use fbdev's I/O helpers
 - sysfs: Expose DRM connector ID
 - tests: More tests for drm_rect

Driver Changes:
 - armada: Implement fbdev emulation as a client
 - bridge:
   - fsl-ldb: Support i.MX6SX
   - lt9211: Remove blanking packets
   - lt9611: Remove blanking packets
   - tc358768: Implement input bus formats reporting, fix various
     timings and clocks settings
   - ti-sn65dsi86: Implement wait_hpd_asserted
 - nouveau: Improve NULL pointer checks before dereference
 - panel:
   - nt36523: Support Lenovo J606F
   - st7703: Support Anbernic RG353V-V2
   - new panels: InnoLux G070ACE-L01
 - sun4i: Fix MIPI-DSI dotclock
 - vc4: RGB Range toggle property, BT601 and BT2020 support for HDMI
 - vkms: Convert to drmm helpers, Add reflection and rotation support

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/2pxmxdzsk2ekjy6xvbpj67zrhtwvkkhfspuvdm5pfm5i54hed6@sooct7yq6z4w

drm/i915/mtl: Extend Wa_16014892111 to MTL A-step

Like DG2, MTL a-step hardware is subject to Wa_16014892111 which
requires that any changes made to the DRAW_WATERMARK register be
done via an INDIRECT_CTX batch buffer rather than through a regular
context workaround.

The bspec gives the same non-default recommended tuning value
for DRAW_WATERMARK as DG2, so we can re-use the INDIRECT_CTX code
to apply that tuning setting on A-step hardware.

Application of the tuning setting on B-step and later does not
need INDIRECT_CTX handling and is already done in
mtl_ctx_workarounds_init() as usual.

v2: Limit the WA for A-step
v3: Update the commit message.
v4: Reorder platform checks and update commit message.

Bspec: 68331
Cc: Haridhar Kalvala <haridhar.kalvala@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@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/20230517233111.297542-2-radhakrishna.sripada@intel.com

drm/i915/mtl: Add MTL performance tuning changes

MTL reuses the tuning parameters for DG2. Extend the dg2
performance tuning parameters to MTL.

v2: Add DRAW_WATERMARK tuning parameter.
v3: Limit DRAW_WATERMARK tuning to non A0 step.
v4: Reorder platform checks.
    Restrict Blend fill caching optimization to Render GT.
v5: Move mtl tuning params to its own function

Bspec: 68331
Cc: Haridhar Kalvala <haridhar.kalvala@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517233111.297542-1-radhakrishna.sripada@intel.com

drm/i915/mtl: do not enable render power-gating on MTL

Multiple CI tests fails with forcewake ack timeouts if render
power gating is enabled.
BSpec 52698 states it should be 0 for MTL, but apparently
this info is outdated. Anyway since the patch makes MTL pass basic
tests added FIXME tag informing this is temporary workaround.

v2: added FIXME tag

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4983
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517-mtl_disable_render_pg-v2-1-0b51180a43f0@intel.com

drm/i915/mtl: Fix expected reg value for Thunderbolt PLL disabling

While disabling Thunderbolt PLL, we request PLL to be stopped and
wait for ACK bit to be cleared. The expected value should be '0'
instead of '~XELPDP_TBT_CLOCK_ACK' or otherwise we incorrectly
receive dmesg warn "PHY PLL not unlocked in 10us".

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512120003.587360-1-mika.kahola@intel.com

fbdev: Rename fb_mem*() helpers

Update the names of the fb_mem*() helpers to be consistent with their
regular counterparts. Hence, fb_memset() now becomes fb_memset_io(),
fb_memcpy_fromfb() now becomes fb_memcpy_fromio() and fb_memcpy_tofb()
becomes fb_memcpy_toio(). No functional changes.

v6:
* update new file fb_io_fops.c

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-8-tzimmermann@suse.de

fbdev: Move framebuffer I/O helpers into <asm/fb.h>

Implement framebuffer I/O helpers, such as fb_read*() and fb_write*(),
in the architecture's <asm/fb.h> header file or the generic one.

The common case has been the use of regular I/O functions, such as
__raw_readb() or memset_io(). A few architectures used plain system-
memory reads and writes. Sparc used helpers for its SBus.

The architectures that used special cases provide the same code in
their __raw_*() I/O helpers. So the patch replaces this code with the
__raw_*() functions and moves it to <asm-generic/fb.h> for all
architectures.

v8:
* remove garbage after commit-message tags
v6:
* fix fb_readq()/fb_writeq() on 64-bit mips (kernel test robot)
v5:
* include <linux/io.h> in <asm-generic/fb>; fix s390 build
v4:
* ia64, loongarch, sparc64: add fb_mem*() to arch headers
  to keep current semantics (Arnd)
v3:
* implement all architectures with generic helpers
* support reordering and native byte order (Geert, Arnd)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-7-tzimmermann@suse.de

fbdev: Include <linux/fb.h> instead of <asm/fb.h>

Replace include statements for <asm/fb.h> with <linux/fb.h>. Fixes
the coding style: if a header is available in asm/ and linux/, it
is preferable to include the header from linux/. This only affects
a few source files, most of which already include <linux/fb.h>.

Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-6-tzimmermann@suse.de

fbdev: Include <linux/io.h> in various drivers

The code uses writel() and similar I/O-memory helpers. Include
the header file to get the declarations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-5-tzimmermann@suse.de

ipu-v3: Include <linux/io.h>

The code uses readl() and writel(). Include the header file to
get the declarations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-4-tzimmermann@suse.de

fbdev/matrox: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-3-tzimmermann@suse.de