The xe driver keeps track of whether to probe display, and whether
display hardware is there, using xe->info.probe_display. It gets set to
false if there's no display after intel_display_device_probe(). However,
the display may also be disabled via fuses, detected at a later time in
intel_display_device_info_runtime_init().
In this case, the xe driver does for_each_intel_crtc() on uninitialized
mode config in xe_display_flush_cleanup_work(), leading to a NULL
pointer dereference, and generally calls display code with display info
cleared.
Check for intel_display_device_present() after
intel_display_device_info_runtime_init(), and reset
xe->info.probe_display as necessary. Also do unset_display_features()
for completeness, although display runtime init has already done
that. This will need to be unified across all cases later.
Move intel_display_device_info_runtime_init() call slightly earlier,
similar to i915, to avoid a bunch of unnecessary setup for no display
cases.
Note #1: The xe driver has no business doing low level display plumbing
like for_each_intel_crtc() to begin with. It all needs to happen in
display code.
Note #2: The actual bug is present already in commit 44e694958b
("drm/xe/display: Implement display support"), but the oops was likely
introduced later at commit ddf6492e0e ("drm/xe/display: Make display
suspend/resume work on discrete").
Fixes: 44e694958b ("drm/xe/display: Implement display support")
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/7904
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/6150
Cc: stable@vger.kernel.org # v6.8+
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260515160920.1082842-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
UAPI Changes:
- Update fourcc descriptions of BG(R) floating formats.
- Add deferred mapping support to virtio.
Cross-subsystem Changes:
- Update lontium lt9211 bindings.
Core Changes:
- Bugfixes and cleanups to pagemap, dp/mst.
- Add lockdep annotations to gpu buddy manager.
- Updates to drm/dp for PR + VRR.
- Improve documentation's table of contents.
- Bump fpfn and lpfn in ttm to 64-bits.
Driver Changes:
- Assorted bugfixes, cleanups and updates to panthor, nouveau, qaic,
hisilicon.
- Add support for CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, IVO
R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels.
- More implementation of AIE4 in amdxdna.
- Update panels to use refcounts instead of devm_kzalloc to make
drm_panel_init static.
- Add support for the RCade Display Adapter to gud.
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Merge tag 'drm-misc-next-2026-05-14' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v7.2-rc1:
UAPI Changes:
- Update fourcc descriptions of BG(R) floating formats.
- Add deferred mapping support to virtio.
Cross-subsystem Changes:
- Update lontium lt9211 bindings.
Core Changes:
- Bugfixes and cleanups to pagemap, dp/mst.
- Add lockdep annotations to gpu buddy manager.
- Updates to drm/dp for PR + VRR.
- Improve documentation's table of contents.
- Bump fpfn and lpfn in ttm to 64-bits.
Driver Changes:
- Assorted bugfixes, cleanups and updates to panthor, nouveau, qaic,
hisilicon.
- Add support for CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, IVO
R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels.
- More implementation of AIE4 in amdxdna.
- Update panels to use refcounts instead of devm_kzalloc to make
drm_panel_init static.
- Add support for the RCade Display Adapter to gud.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/98788814-e462-4950-bb2a-ea493c30d0c0@linux.intel.com
If userspace never maps GEM object, then BO wastes hostmem space
because VirtIO-GPU driver maps VRAM BO at the BO's creating time.
Make mappings on-demand by adding new RESOURCE_CREATE_BLOB IOCTL/UAPI
hinting flag telling that host mapping should be deferred until first
mapping is made when the flag is set by userspace.
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Link: https://patch.msgid.link/20260501000043.2483678-1-dmitry.osipenko@collabora.com
We only expect and handle the GT_MI_USER_INTERRUPT from the
engines, there is no point in enabling other interrupts, like
GT_CONTEXT_SWITCH_INTERRUPT, if we don't intent to handle them.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260511172838.2299-3-michal.wajdeczko@intel.com
To workaround some corner case hardware limitations, new programming
note for the memory based interrupt handler suggests to assume that
some status bytes, like GT_MI_USER_INTERRUPT and GUC_INTR_GUC2HOST,
are always set. Update our interrupt handler to follow the new rules.
Bspec: 53672
Fixes: a6581ebe76 ("drm/xe/vf: Introduce Memory Based Interrupts Handler")
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260511172838.2299-2-michal.wajdeczko@intel.com
Use i2c_lock_bus(), i2c_trylock_bus(), and i2c_unlock_bus() instead of
poking at i2c adapter's lock_ops directly.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260513080103.169402-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
fpfn and lpfn in struct ttm_place are 32-bit page numbers. With 4KB page
size this can support up to 44-bit physical addressing. Grow these to
64-bit (uint64_t) to support larger physical addresses.
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260513141253.20410-1-felix.kuehling@amd.com
Add display specific helpers for getting the register offset, checking
for equality and validity. Add them as static inlines for increased type
safety.
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/7fe12d4e5465778209ccf29359767a197b031dd9.1777972548.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Add struct intel_error_regs, a display version of struct
i915_error_regs, and use it. The goal is to reduce the dependency on
i915 core types and headers.
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/7f909c6b1f7ae623792b5abc3d31d4a682006e24.1777972548.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Add struct intel_irq_regs, a display version of struct i915_irq_regs,
and use it. The goal is to reduce the dependency on i915 core types and
headers.
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/56118c2e40e171e898034a7bea6c8d14f515f5c1.1777972548.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Add a typedef alias intel_reg_t for i915_reg_t, and use it exclusively
in display code. The goal is to eventually define a distinct type for
display, but for now just use an alias.
In a handful of places include intel_display_reg_defs.h instead of
i915_reg_defs.h to get the definition, and isolate the i915_reg_defs.h
include there.
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/f5bb0122143c39ce7f9ce8a1605a7637e569f7f8.1777972548.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
During recent GGTT refactoring we missed to drop now unused field
from the xe_tile. Drop it now.
Fixes: e904c56ba6 ("drm/xe: Rewrite GGTT VF initialization")
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Link: https://patch.msgid.link/20260510205605.642-1-michal.wajdeczko@intel.com
Some of the GPU documentation pages are quite long, with various levels
of details. Add document internal tables of contents to the larger
documents to make them easier to navigate.
The index.rst in the sub-directories have toctrees, which provide
similar overviews.
Fix one missing newline at the end of drm-uapi.rst while at it,
primarily because rst should have it, and secondarily because my editor
rst mode refuses to save the file without it.
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/e3f9357c0e8198cc48e69e2a3b8ca072c7ab92ca.1778238671.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
The main GPU documentation toctree has no limit to the toctree depth,
which means the main GPU index page recursively includes all the
headings in all of GPU documentation in the single table of
contents. This makes getting any kind of overview of the documentation
really difficult.
Limit the main toctree depth to 2 i.e. show at most two levels of
headings.
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/cddd2d11c104132801510e3ab4e4b9ef3ea9cb6d.1778238671.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
In the past, we use width and height to look up our PLL value.
But actually the actual clock check is also necessnary. There are
some resolutions that width and height same, but its clock different.
Add the clock check when using pll_table to determine the PLL value.
Fixes: da52605eea ("drm/hisilicon/hibmc: Add support for display engine")
Signed-off-by: Lin He <helin52@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260509032302.2057227-5-shiyongbang@huawei.com
If there's no VGA output, this encoder modeset won't be called, which
will cause displaying data from GPU being cut off. It's actually a
common display config for DP and VGA, so move the vdac encoder modeset
to driver load stage.
Removed invalid bit configurations from `hibmc_display_ctrl`
Fixes: 5294967f4a ("drm/hisilicon/hibmc: Add support for VDAC")
Signed-off-by: Lin He <helin52@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260509032302.2057227-4-shiyongbang@huawei.com
Our chip support KVM over IP feature, so hibmc driver need to support
displaying without any connectors plugged in. If no connectors are
connected, the vdac connector status should be set to 'connected' to
ensure proper KVM display functionality. Additionally, for
previous-generation products that may lack hardware link support and
thus cannot detect the monitor, the same approach should be applied
to ensure VGA display functionality.
* Add phys_state in the struct of dp and vdac to check physical outputs.
* The 'epoch_counter' of the vdac connector is incremented when the
physical status changes.
For get_modes: using BMC modes for connector if no display is attached to
phys VGA cable, otherwise use EDID modes by drm_connector_helper_get_modes,
because KVM doesn't provide EDID reads.
The polling mechanism for the KMS helper is enabled.
Fixes: 4c962bc929 ("drm/hisilicon/hibmc: Add vga connector detect functions")
Reported-by: Thomas Zimmermann <tzimmermann@suse.de>
Closes: https://lore.kernel.org/all/0eb5c509-2724-4c57-87ad-74e4270d5a5a@suse.de/
Signed-off-by: Lin He <helin52@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260509032302.2057227-3-shiyongbang@huawei.com
In the past, the link cap is updated in link training at encoder enable
stage, but the hibmc_dp_mode_valid() is called before it, which will use
DP link's rate and lanes. So add the hibmc_dp_update_caps() in
hibmc_dp_update_caps() to avoid some potential risks.
Fixes: 607805abfb ("drm/hisilicon/hibmc: add dp mode valid check")
Signed-off-by: Lin He <helin52@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260509032302.2057227-2-shiyongbang@huawei.com
To perform copy, based on whether the platform supports service copy
engines, either MEM_COPY or XY_FAST_COPY_BLT instruction is used.
Length of both the instructions is same today and so they use a common
define EMIT_COPY_DW.
This is not true for the future platforms. Implement separate functions
which return the length of the instruction to help in preparing for it.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260511123746.616662-8-balasubramani.vivekanandan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Implement a function to return the length of the MEM_SET instruction.
This is to prepare for future platforms where the length of MEM_SET
instruction is expected to change.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260511123746.616662-7-balasubramani.vivekanandan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Implement a function which returns the length of XY_FAST_COLOR_BLT
instruction instead of hardcoding it inside the emit_clear_main_copy.
In future platforms, the length of this instruction is expected to
change and this patch helps in preparing for it.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260511123746.616662-6-balasubramani.vivekanandan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
The FIXME says that xe_engine_snapshot_print.. is accessing persistent
driver data, unlike what the FIXME says that it does. Drop the FIXME
since the current code is not going to access the hardware while
dumping.
More details about this patch:
https://patchwork.freedesktop.org/patch/703884/?series=161407&rev=1
The starting two feedbacks make sense and the original patch is wrong
in adding those changes, but the last feedback is the one which
highlights the point.
Signed-off-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Link: https://patch.msgid.link/20260512055508.1380191-1-shekhar.chauhan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Do not allow SYS_MEM_LAT_MEASURE_EN bit to be set in SYS_MEM_LAT_MEASURE
register. Doing so can cause memory corruption.
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20260430161459.2892545-5-ashutosh.dixit@intel.com
Add val arg to xe_oa_is_valid_config_reg so that register values can also
be verified, in addition to register address. Value verification is needed
to implement MERTOA Wa_14026779378.
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20260430161459.2892545-4-ashutosh.dixit@intel.com
Wa_14026746987 implies that only XE_OAM_FORMAT_MPEC8u32_B8_C8 and not
XE_OAM_FORMAT_MPEC8u64_B8_C8 can be supported for MERTOA unit.
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20260430161459.2892545-3-ashutosh.dixit@intel.com
Consolidate the two-element allocation into a single allocation using a
flexible array member. This reduces memory fragmentation and simplifies
the error path by eliminating the need to check for allocation failure
between the two allocations.
Add __counted_by for runtime bounds checking.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Tested-by: Youssef Samir <youssef.abdulrahman@oss.qualcomm.com>
Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Signed-off-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Link: https://patch.msgid.link/20260401220643.12802-1-rosenp@gmail.com
When copying plane color state in a joiner configuration, use the plane in
the primary joiner pipe since it carries the pipeline number selected by
the user-space.
This assumes that all pipes in the joiner are symmetric in their plane
color capabilities.
Cc: stable@vger.kernel.org # v6.19+
Fixes: a78f1b6baf ("drm/i915/color: Add framework to program CSC")
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260511053213.3122314-2-chaitanya.kumar.borah@intel.com
v1:
Separate DPM clock attribute constraints for Arcturus (9.4.1) and
Aldebaran (9.4.2) ASICs.
- For Aldebaran:
* mclk/socclk: Disable write, only voltage control supported
* fclk/pcie: Mark as unsupported
- Remove 9.4.2 from global pcie check and handle it in ASIC specific case
- Update comments to reflect correct hardware names
v2:
fix some coding logic issue (by asad)
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
gfx_v12_0_init_microcode() always loads RS64 CP ucode but never set
adev->gfx.rs64_enable, so it stayed false and code that branches on it
(e.g. MEC pipe reset) used the legacy CP_MEC_CNTL path incorrectly.
Match GFX11: derive RS64 mode from the PFP firmware header (v2.0) via
amdgpu_ucode_hdr_version(). Log at debug when RS64 is enabled.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch adds support for vpe v2.0.0 with new structs and ip functions
Acked-by: Roy Chan <Roy.Chan@amd.com>
Signed-off-by: Caden Chien <chih-wei.chien@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
New offset and sh/mask are added for vpe v2.0.0
Acked-by: Roy Chan <Roy.Chan@amd.com>
Signed-off-by: Caden Chien <chih-wei.chien@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
A callback function is added to setup doorbell range during vpe hw
queue initialization on nbio 7.11.4.
Signed-off-by: Caden Chien <chih-wei.chien@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
S2A doorbell entry 5 on nbio 7.11.4 is used by vpe 2.0
Signed-off-by: Caden Chien <chih-wei.chien@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When we do a full adapter reset, if we know the timedout fence
mark the fence with -ETIME rather than -ECANCELED so it
gets properly handled by userspace.
v2: rebase
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add the required FRL registers for DCN316.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add the required FRL registers for DCN315.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add all the required registers to support FRL on DCN303.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add the required FRL registers for DCN302.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add all the required registers to support FRL on DCN314.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit add the basic set of FRL registers associated with DCN32.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
