Commit Graph

1398564 Commits

Author SHA1 Message Date
Michał Winiarski
67df4a5cbc drm/xe/pf: Add data structures and handlers for migration rings
Migration data is queued in a per-GT ptr_ring to decouple the worker
responsible for handling the data transfer from the .read() and .write()
syscalls.
Add the data structures and handlers that will be used in future
commits.

Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-6-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2025-11-13 11:48:19 +01:00
Michał Winiarski
ed46ff0d51 drm/xe/pf: Add save/restore control state stubs and connect to debugfs
The states will be used by upcoming changes to produce (in case of save)
or consume (in case of resume) the VF migration data.

Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-5-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2025-11-13 11:48:18 +01:00
Michał Winiarski
cd0ffc8ddc drm/xe/pf: Convert control state to bitmap
In upcoming changes, the number of states will increase as a result of
introducing SAVE and RESTORE states.
This means that using unsigned long as underlying storage won't work on
32-bit architectures, as we'll run out of bits.
Use bitmap instead.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510231918.XlOqymLC-lkp@intel.com/
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-4-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2025-11-13 11:48:18 +01:00
Michał Winiarski
4a43480ae0 drm/xe: Move migration support to device-level struct
Upcoming changes will allow users to control VF state and obtain its
migration data with a device-level granularity (not tile/gt).
Change the data structures to reflect that and move the GT-level
migration init to happen after device-level init.

Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-3-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2025-11-13 11:48:18 +01:00
Michał Winiarski
baf125849a drm/xe/pf: Remove GuC version check for migration support
Since commit 4eb0aab6e4 ("drm/xe/guc: Bump minimum required GuC
version to v70.29.2"), the minimum GuC version required by the driver
is v70.29.2, which should already include everything that we need for
migration.
Remove the version check.

Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-2-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2025-11-13 11:46:27 +01:00
Jonathan Cavitt
b84befa312 drm/i915/display: Add default case to mipi_exec_send_packet
Add a default case to the switch case statement in mipi_exec_send_packet
to prevent attempts to read an uninitialized ret value.  It's unlikely
the default case will ever occur during regular exeuction, but if more
MIPI DSI Processor-to-Peripheral transaction types are ever added, then
having this in place will be a useful safety guard.

Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Fixes: 23db1577ce ("drm/i915/dsi: log send packet sequence errors")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/20251104164150.16795-2-jonathan.cavitt@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-11-13 12:02:47 +02:00
Jani Nikula
38759cc5ad drm/xe: remove stale runtime_pm member
This has become unused and unnecessary. Remove.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20251112185547.172113-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-11-13 10:27:22 +02:00
Jani Nikula
4341dd24ab drm/i915/ltphy: include intel_display_utils.h instead of i915_utils.h
Display code stopped using i915_utils.h in favour of
intel_display_utils.h. Fix recent additions.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20251112181342.107911-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-11-13 10:27:10 +02:00
Sk Anirban
6b74d0a5e2
drm/xe/guc: Eliminate RPa frequency caching
Remove the cached pc->rpa_freq field and refactor RPA frequency handling
to fetch values directly from hardware registers on each request.

v2: Check graphics version instead of platform (Rodrigo)
v3: Fix graphics version check (Badal)

Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Suggested-by: Badal Nilawar <badal.nilawar@intel.com>
Signed-off-by: Sk Anirban <sk.anirban@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20251112185153.3593145-6-sk.anirban@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-11-12 18:05:52 -05:00
Sk Anirban
2917e17b5f
drm/xe/guc: Eliminate RPe caching for SLPC parameter handling
RPe is runtime-determined by PCODE and caching it caused stale values,
leading to incorrect GuC SLPC parameter settings.
Drop the cached rpe_freq field and query fresh values from hardware
on each use to ensure GuC SLPC parameters reflect current RPe.

v2: Remove cached RPe frequency field (Rodrigo)
v3: Remove extra variable (Vinay)
    Modify function name (Vinay)
v4: Maintain a separate function for PVC (Rodrigo)
v5: Avoid RPn update while fetching RPe frequency (Rodrigo)
v6: Split platform-specific RPe comments (Vinay)

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5166
Signed-off-by: Sk Anirban <sk.anirban@intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://patch.msgid.link/20251112185153.3593145-5-sk.anirban@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-11-12 18:05:52 -05:00
Ville Syrjälä
7f3719bf14 drm/i915/cursor: Initialize 845 vs 865 cursor size separately
The if+ternary combo used for the max cursor width initialization
on 845/865 is rather cumbersome. Just split this into a straight
up if ladder.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-10-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 23:01:21 +02:00
Ville Syrjälä
aa4cd70b1b drm/i915/cursor: Extract intel_cursor_mode_config_init()
Move the max cursor size initialization into intel_cursor.c
so that all the platform specific details about cursors are
concentrated in one file.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-9-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 23:01:08 +02:00
Ville Syrjälä
3107fc6307 drm/i915: Use mode_config->cursor_width for cursor DDB allocation
Replace the hardcoded 256 with mode_config->cursor_width
when doing the cursor DDB allocation. Currently 256 is correct
for all SKL+, but this might change in the future. One less place
to change should that happen.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 23:00:49 +02:00
Ville Syrjälä
608a7d3f21 drm/i915/wm: Use drm_get_format_info() in SKL+ cursor DDB allocation
Replace the technically inaccurate drm_format_info() with the
accurate drm_get_format_info() in the SKL+ cursor DDB
allocation code.

Since we're only interested in the linear modifier here, the two
functions do actually return the same information. But let's not
use drm_format_info() to avoid setting a bad example.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 23:00:22 +02:00
Ville Syrjälä
f5255f900b drm/i915/fb: Init 'ret' in each error branch in intel_framebuffer_init()
Make the order of things a bit less fragile in
intel_framebuffer_init() by assigning 'ret' in each
error branch instead of depending on some earlier
assignment.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 22:59:58 +02:00
Ville Syrjälä
13fad66ffc drm/i915: Nuke intel_plane_config.tiling
Use intel_fb_modifier_to_tiling() to convert the modifier into
the fence tiling mode during BIOS FB readout, rather than hand
rolling it. With this we can also stop tracking the tiling mode
in the intel_plane_config.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 22:58:59 +02:00
Ville Syrjälä
73206a7519 drm/i915: Populate fb->format accurately in BIOS FB readout
Use drm_get_format_info() instead of drm_format_info() to populate
fb->format during the BIOS FB readout. The difference being that
drm_get_format_info() knows about compressed formats whereas
drm_format_info() doesn't.

This doesn't actually matter in practice since the BIOS FB should
never be compressed, but no reason we shouldn't use the more accurate
function here anyway.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 22:58:46 +02:00
Ville Syrjälä
95357b68b6 drm/i915: Pass drm_format_info into plane->max_stride()
Pass the format info into plane->max_stride() from the
caller instead of doing yet another drm_format_info()
lookup on the spot.

drm_format_info() is both rather expensive, and technically
incorrect since it doesn't return the correct format info
for compressed formats (though that doesn't actually matter
for the current .max_stride() implementations since they
are just interested in the cpp value).

Most callers already have the format info available. The
only exception is intel_dumb_fb_max_stride() where we shall
use the actually correct drm_get_format_info() variant.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 22:57:56 +02:00
Ville Syrjälä
854efdc7ef drm/i915: Introduce intel_dumb_fb_max_stride()
Wrap intel_plane_fb_max_stride() in intel_dumb_fb_max_stride()
for the purposes of dumb fb creation. I want to change
intel_plane_fb_max_stride() to take a 'struct drm_format_info'
instead of the 'u32 pixel_format' so we need an excplicit format
info lookup in the dumb fb path and I don't really want to have
that in i915_gem_dumb_create() directly.

This makes intel_plane_fb_max_stride() internal to the display
code again, and thus we can pass in struct intel_display instead
of struct drm_device.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2025-11-12 22:57:29 +02:00
Timur Tabi
de0d6e19d2 drm/nouveau: fully define nvfw_hs_load_header_v2
Add the missing fields of the nvfw_hs_load_header_v2 struct, so that the
struct matches the actual contents of the firmware images.

nvfw_hs_load_header_v2 is a struct that defines a header for some firmware
images used by Nouveau.  The current structure definition is incomplete;
it omits the last two fields because they are unused.

To maintain consistency between Nouveau, OpenRM, and Nova, and to
make it easier to support possible future images, we should fully define
the struct.  Also add a __counted_by tag for the flex array.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251010223957.1078525-1-ttabi@nvidia.com
2025-11-12 12:53:11 -05:00
Mohamed Ahmed
85ce566b36 drm/nouveau/drm: Bump the driver version to 1.4.1 to report new features
The HW can only do compression on large and huge pages, and enabling it on
4K pages leads to a MMU fault. Compression also needs kernel support for
handling the compressed kinds and managing the compression tags.

This increments the nouveau version number which allows NVK to enable it
only when the kernel actually supports both features and avoid breaking
the system if a newer mesa version is paired with an older kernel version.

For the associated userspace MR, please see !36450:
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36450

Signed-off-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Signed-off-by: Mary Guillemard <mary@mary.zone>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251110-nouveau-compv6-v6-5-83b05475f57c@mary.zone
2025-11-12 12:23:41 -05:00
Ben Skeggs
0ee6a72bb0 drm/nouveau/mmu/tu102: Add support for compressed kinds
Allow compressed PTE kinds to be written into PTEs when GSP-RM is
present, rather than reverting to their non-compressed versions.

Signed-off-by: Ben Skeggs <bskeggs@nvidia.com>
Signed-off-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Signed-off-by: Mary Guillemard <mary@mary.zone>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251110-nouveau-compv6-v6-4-83b05475f57c@mary.zone
2025-11-12 12:23:40 -05:00
Ben Skeggs
a79d3845f9 drm/nouveau/mmu/gp100: Remove unused/broken support for compression
From GP100 onwards it's not possible to initialise comptag RAM without
PMU firmware, which nouveau has no support for.

As such, this code is essentially a no-op and will always revert to the
equivalent non-compressed kind due to comptag allocation failure.  It's
also broken for the needs of VM_BIND/Vulkan.

Remove the code entirely to make way for supporting compression on GPUs
that support GSM-RM.

Signed-off-by: Ben Skeggs <bskeggs@nvidia.com>
Signed-off-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Signed-off-by: Mary Guillemard <mary@mary.zone>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251110-nouveau-compv6-v6-3-83b05475f57c@mary.zone
2025-11-12 12:23:40 -05:00
Mary Guillemard
c488a94e7e drm/nouveau/uvmm: Allow larger pages
Now that everything in UVMM knows about the variable page shift, we can
select larger values.

The proposed approach relies on nouveau_bo::page unless if it would cause
alignment issues (in which case we fall back to searching for an
appropriate shift)

Signed-off-by: Mary Guillemard <mary@mary.zone>
Co-developed-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Signed-off-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251110-nouveau-compv6-v6-2-83b05475f57c@mary.zone
2025-11-12 12:23:39 -05:00
Mary Guillemard
6d13495325 drm/nouveau/uvmm: Prepare for larger pages
Currently memory allocated by VM_BIND uAPI can only have a  granuality
matching PAGE_SIZE (4KiB in common case)

To have a better memory management and to allow big (64KiB) and huge
(2MiB) pages later in the series, we are now passing the page shift all
around the internals of UVMM.

Signed-off-by: Mary Guillemard <mary@mary.zone>
Co-developed-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Signed-off-by: Mohamed Ahmed <mohamedahmedegypt2001@gmail.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251110-nouveau-compv6-v6-1-83b05475f57c@mary.zone
2025-11-12 12:23:38 -05:00
Michal Wajdeczko
387aba39b7 drm/xe/pf: Allow to lockdown the PF using custom guard
Some driver components, like eudebug or ccs-mode, can't be used
when VFs are enabled.  Add functions to allow those components
to block the PF from enabling VFs for the requested duration.

Introduce trivial counter to allow lockdown or exclusive access
that can be used in the scenarios where we can't follow the strict
owner semantics as required by the rw_semaphore implementation.

Before enabling VFs, the PF will try to arm the "vfs_enabling"
guard for the exclusive access.  This will fail if there are
some lockdown requests already initiated by the other components.

For testing purposes, add debugfs file which will call these new
functions from the file's open/close hooks.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Christoph Manszewski <christoph.manszewski@intel.com>
Reviewed-by: Christoph Manszewski <christoph.manszewski@intel.com>
Link: https://patch.msgid.link/20251109162451.4779-1-michal.wajdeczko@intel.com
2025-11-12 18:15:33 +01:00
Lucas De Marchi
459a0ce8dc drm/xe/pcode: Rework error mapping
The sparse array used for error decoding from is unnecessarily big. It
should be better handled by a switch statement that will also allow us
to more easily improve this code.

Add a CASE_ERR() macro to keep the table compact and use it instead of
the 256-entries array, which saves some space:

	$ bloat-o-meter xe_pcode.o.old xe_pcode.o
	add/remove: 0/1 grow/shrink: 2/0 up/down: 190/-4096 (-3906)
	Function                                     old     new   delta
	__pcode_mailbox_rw                           363     465    +102
	__pcode_mailbox_rw.cold                       58     146     +88
	err_decode                                  4096       -   -4096
	Total: Before=7890, After=3984, chg -49.51%

Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20251110-pcode-errmap-v2-1-cb18c8f54238@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-11-12 08:57:27 -08:00
Kriish Sharma
53361aa64f
drm/xe: fix kernel-doc function name mismatch in xe_pm.c
Documentation build reported:

   WARNING: ./drivers/gpu/drm/xe/xe_pm.c:131 expecting prototype for xe_pm_might_block_on_suspend(). Prototype was for xe_pm_block_on_suspend() instead

The kernel-doc comment for xe_pm_block_on_suspend() incorrectly used
the function name xe_pm_might_block_on_suspend(). Fix the header to
match the actual function prototype.

No functional changes.

Fixes: f73f6dd312 ("drm/xe/pm: Add lockdep annotation for the pm_block completion")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511061736.CiuroL7H-lkp@intel.com/
Signed-off-by: Kriish Sharma <kriish.sharma2006@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20251110184206.2113830-1-kriish.sharma2006@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-11-12 09:43:01 -05:00
Jayesh Choudhary
86db652fc2 drm/tidss: Move OLDI mode validation to OLDI bridge mode_valid hook
After integrating OLDI support[0], it is necessary to identify which VP
instances use OLDI, since the OLDI driver owns the video port clock
(as a serial clock). Clock operations on these VPs must be delegated to
the OLDI driver, not handled by the TIDSS driver. This issue also
emerged in upstream discussions when DSI-related clock management was
attempted in the TIDSS driver[1].

To address this, add an 'is_ext_vp_clk' array to the 'tidss_device'
structure, marking a VP as 'true' during 'tidss_oldi_init()' and as
'false' during 'tidss_oldi_deinit()'. TIDSS then uses 'is_ext_vp_clk'
to skip clock validation checks in 'dispc_vp_mode_valid()' for VPs
under OLDI control.

Since OLDI uses the DSS VP clock directly as a serial interface and
manages its own rate, mode validation should be implemented in the OLDI
bridge's 'mode_valid' hook. This patch adds that logic, ensuring proper
delegation and avoiding spurious clock handling in the TIDSS driver.

[0]: https://lore.kernel.org/all/20250528122544.817829-1-aradhya.bhatia@linux.dev/
[1]: https://lore.kernel.org/all/DA6TT575Z82D.3MPK8HG5GRL8U@kernel.org/

Fixes: 7246e09299 ("drm/tidss: Add OLDI bridge support")
Tested-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Signed-off-by: Swamil Jain <s-jain1@ti.com>
Link: https://patch.msgid.link/20251104151422.307162-3-s-jain1@ti.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patch.msgid.link/ffd5ebe03391b3c01e616c0c844a4b8ddecede36.1762513240.git.jani.nikula@intel.com
2025-11-12 11:54:39 +02:00
Jayesh Choudhary
527e132573 drm/tidss: Remove max_pclk_khz and min_pclk_khz from tidss display features
The TIDSS hardware does not have independent maximum or minimum pixel
clock limits for each video port. Instead, these limits are determined
by the SoC's clock architecture. Previously, this constraint was
modeled using the 'max_pclk_khz' and 'min_pclk_khz' fields in
'dispc_features', but this approach is static and does not account for
the dynamic behavior of PLLs.

This patch removes the 'max_pclk_khz' and 'min_pclk_khz' fields from
'dispc_features'. The correct way to check if a requested mode's pixel
clock is supported is by using 'clk_round_rate()' in the 'mode_valid()'
hook. If the best frequency match for the mode clock falls within the
supported tolerance, it is approved. TIDSS supports a 5% pixel clock
tolerance, which is now reflected in the validation logic.

This change allows existing DSS-compatible drivers to be reused across
SoCs that only differ in their pixel clock characteristics. The
validation uses 'clk_round_rate()' for each mode, which may introduce
additional delay (about 3.5 ms for 30 modes), but this is generally
negligible. Users desiring faster validation may bypass these calls
selectively, for example, checking only the highest resolution mode,
as shown here[1].

[1]: https://lore.kernel.org/all/20250704094851.182131-3-j-choudhary@ti.com/

Tested-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Signed-off-by: Swamil Jain <s-jain1@ti.com>
Link: https://patch.msgid.link/20251104151422.307162-2-s-jain1@ti.com
[Tomi: dropped 'inline' from check_pixel_clock]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
2025-11-12 11:52:40 +02:00
Jernej Skrabec
54c33a4fcf drm/sun4i: Nuke mixer pointer from layer code
It's not used anymore, so remove it. This allows trully independent
layer state from mixer.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-31-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:25 +08:00
Jernej Skrabec
345bca734c drm/sun4i: vi_scaler: Find mixer from crtc
With "floating" planes in DE33, mixer can't be stored in layer structure
anymore. Find mixer using currently bound crtc.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-30-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:25 +08:00
Jernej Skrabec
bb1d2ddee5 drm/sun4i: layer: replace mixer with layer struct
This allows to almost completely decouple layer code from mixer. This is
important for DE33.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-29-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:25 +08:00
Jernej Skrabec
d1fe263942 drm/sun4i: mixer: split out layer config
Later special plane only driver for DE33 will provide separate
configuration. This change will also help layer driver migrate away from
mixer structure.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-28-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:25 +08:00
Jernej Skrabec
5a96ae801f drm/sun4i: mixer: Add quirk for number of VI scalers
On DE2 and DE3, UI scalers are located right after VI scalers. So in
order to calculate proper UI scaler base address, number of VI scalers
must be known. In practice, it is same as number of VI channels, but it
doesn't need to be.

Let's make a quirk for this number. Code for configuring channels and
associated functions won't have access to vi_num quirk anymore after
rework for independent planes.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-27-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:25 +08:00
Jernej Skrabec
a23e3402f6 drm/sun4i: ui_scaler: drop sanity checks
They can't be triggered if mixer configuration is properly specified in
quirks. Additionally, number of VI channels won't be available in future
due to rework for DE33 support.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-26-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:24 +08:00
Jernej Skrabec
7907cf1140 drm/sun4i: mixer: Convert heuristics to quirk
Determination if FCC unit can be used for VI layer alpha depends on
number of VI channels. This info won't be available anymore in future
to VI layer driver because of DE33 way of allocating planes from same
pool to different mixers.

While order is slightly changed, it doesn't affect anything due to
double buffering of registers. New order keeps related registers
together and quirk separate.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-25-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:24 +08:00
Jernej Skrabec
c0cbdda9ab drm/sun4i: vi_scaler: Update DE33 base calculation
Now that channel base calculation is straightforward, let's update VI
scaler base calculation to be simpler. At the same time, also introduce
macro to avoid magic numbers.

Note, reason why current magic value and new macro value isn't the same
is because sun8i_channel_base() already introduces offset to channel
registers. Previous value is just the difference to VI scaler registers.
However, new code calculates scaler base from channel base. This is also
easier to understand when looking into BSP driver. Macro value can be
easily found whereas old diff value was not.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-24-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:24 +08:00
Jernej Skrabec
515441734c drm/sun4i: layers: add physical index arg
This avoids plane mapping in layers code, which allows future
refactoring, when layer code will move away from accessing mixer
structure.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-23-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
0bc7d54dcc drm/sun4i: csc: use layer arg instead of mixer
Layer will be more universal, due to DE33 support.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-22-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
37aba59f5f drm/sun4i: layers: Make regmap for layers configurable
Till DE33, there were no reason to decouple registers from mixer.
However, with future new plane driver, this will be necessary.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-21-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
f54c353cff drm/sun4i: vi_scaler: use layer instead of mixer for args
Layer related peripherals should take layer struct as a input. This
looks cleaner and also necessary for proper DE33 support later.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-20-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
1ebec02bba drm/sun4i: ui_scaler: use layer instead of mixer for args
Layer related peripherals should take layer struct as a input. This
looks cleaner and also necessary for proper DE33 support later.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-19-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
f10a80105e drm/sun4i: vi_layer: use layer struct instead of multiple args
This change is equally a cleanup (less arguments) and preparation for
DE33 separate plane driver. It will introduce additional register space.

No functional changes.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-18-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
7d126c6e80 drm/sun4i: ui_layer: use layer struct instead of multiple args
This change is equally a cleanup (less arguments) and preparation for
DE33 separate plane driver. It will introduce additional register space.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-17-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:23 +08:00
Jernej Skrabec
4fa45b04a4 drm/sun4i: layer: move num of planes calc out of layer code
With DE33, number of planes no longer depends on mixer because layers
are shared between all mixers.

Get this value via parameter, so DE specific code can fill in proper
value.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-16-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:22 +08:00
Jernej Skrabec
32ca21b97f drm/sun4i: ui_layer: Change index meaning
In the pursuit of making UI/VI layer code independent of DE version,
change meaning of UI index to index of the plane within mixer. DE33 can
split amount of VI and UI planes between multiple mixer in whatever way
it deems acceptable, so simple calculation VI num + UI index won't be
meaningful anymore.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-15-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:22 +08:00
Jernej Skrabec
feea4205ef drm/sun4i: de2/de3: Move plane type determination to mixer
Plane type determination logic inside layer init functions doesn't allow
index register to be repurposed to plane sequence, which it almost is.

So move out the logic to mixer, which allows further rework for DE33
support.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-14-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:22 +08:00
Jernej Skrabec
a7febbd455 drm/sun4i: csc: Simplify arguments with taking plane state
Taking plane state directly reduces number of arguments, avoids copying
values and allows making additional decisions. For example, when plane
is disabled, CSC should be turned off.

This is also cleanup for later patches which will move call to another
place.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-13-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:22 +08:00
Jernej Skrabec
870e3cf48c drm/sun4i: de2/de3: Simplify CSC config interface
Merging both function into one lets this one decide on it's own if CSC
should be enabled or not. Currently heuristics for that is pretty simple
- enable it for YUV formats and disable for RGB. DE3 and newer allows
YUV pipeline, which will be easier to implement these way.

Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Tested-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251104180942.61538-12-jernej.skrabec@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-11-12 17:18:22 +08:00