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Reject queries to get current partition modes during reset. Also, don't
accept sysfs interface requests to switch compute partition mode while
in reset.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Added checks for NULL values after retrieving drm_new_conn_state
to prevent dereferencing NULL pointers.
Fixes the below:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:10751 dm_update_crtc_state()
warn: 'drm_new_conn_state' can also be NULL
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c
10672 static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
10673 struct drm_atomic_state *state,
10674 struct drm_crtc *crtc,
10675 struct drm_crtc_state *old_crtc_state,
10676 struct drm_crtc_state *new_crtc_state,
10677 bool enable,
10678 bool *lock_and_validation_needed)
10679 {
10680 struct dm_atomic_state *dm_state = NULL;
10681 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
10682 struct dc_stream_state *new_stream;
10683 int ret = 0;
10684
...
10703
10704 /* TODO This hack should go away */
10705 if (connector && enable) {
10706 /* Make sure fake sink is created in plug-in scenario */
10707 drm_new_conn_state = drm_atomic_get_new_connector_state(state,
10708 connector);
drm_atomic_get_new_connector_state() can't return error pointers, only NULL.
10709 drm_old_conn_state = drm_atomic_get_old_connector_state(state,
10710 connector);
10711
10712 if (IS_ERR(drm_new_conn_state)) {
^^^^^^^^^^^^^^^^^^
10713 ret = PTR_ERR_OR_ZERO(drm_new_conn_state);
Calling PTR_ERR_OR_ZERO() doesn't make sense. It can't be success.
10714 goto fail;
10715 }
10716
...
10748
10749 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
10750
--> 10751 ret = fill_hdr_info_packet(drm_new_conn_state,
^^^^^^^^^^^^^^^^^^ Unchecked dereference
10752 &new_stream->hdr_static_metadata);
10753 if (ret)
10754 goto fail;
10755
v2: Modified the NULL pointer check for drm_new_conn_state in the
dm_update_crtc_state function to include a warning via WARN_ON and
return -EINVAL to indicate an invalid state when the pointer is NULL.
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Explain how to perform front-buffer rendering.
v2: apply Pekka's rewrite
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Simon Ser <contact@emersion.fr>
Link: https://lore.kernel.org/r/20250414085652.43904-1-contact@emersion.fr
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gcc-12 and higher support the -ftrivial-auto-var-init= flag, after
gcc-8 is the minimum version, this is half of the supported ones, and
the vast majority of the versions that users are actually likely to
have, so it seems like a good time to stop having the fallback
plugin implementation
Older toolchains are still able to build kernels normally without
this plugin, but won't be able to use variable initialization..
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Minimum HBlank is programmed to address jitter for high resolutions with
high refresh rates that have small Hblank, specifically where Hblank is
smaller than one MTP.
TODO: Add the min_hblank calculation for hdmi as well.
v2: move from intel_audio.c to intel_dp.c
some correction in link_bpp_x16 (Imre)
v3: min_hblank for 8b/10b MST and 128b/132b SST/MST
handle error for intel_dp_mst_dsc_get_slice_count
reset min_hblank before disabling transcoder (Imre)
v4: compute link_bpp_x16 within compute_min_hblank,
return error in case of compute failure
call compute_min_hblank() before vrr_compute_config (Imre)
v5: readout MIN_HBLAN reg for Xe3+
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250424-hblank-v7-2-8b002f1506cc@intel.com
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Unify the function to calculate the link symbol cycles for both dsc and
non-dsc case and export the function so that it can be used in the
respective platform display drivers for other calculations.
v2: unify the fn for both dsc and non-dsc case (Imre)
v3: rename drm_dp_link_symbol_cycles to drm_dp_link_data_symbol_cycles
retain slice_eoc_cycles as is (Imre)
v4: Expose only drm_dp_link_symbol_cycles() (Imre)
v6: Add slice pixels which was removed unknowingly (Vinod)
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250424-hblank-v7-1-8b002f1506cc@intel.com
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The devm_kzalloc() function returns NULL on failure, not error pointers.
Also printing an error message for kmalloc() failures is against kernel
style so just return -ENOMEM without printing a message. (Kmalloc
already prints a message).
Fixes: 4b35f0f41ee2 ("drm/st7571-i2c: add support for Sitronix ST7571 LCD controller")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/aBHZYgPPPYY-J8Vd@stanley.mountain
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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i915/pch reports a warning on a mini PC which has a CoffeeLake-S GT2
[UHD Graphics 630] [8086:3e92] and an ISA bridge - H110 LPC Controller
[8086:a143].
[5.608723] i915 0000:00:02.0: [drm] Found coffeelake (device ID 3e92) integrated display version 9.00 stepping N/A
[5.608969] ------------[ cut here ]------------
[5.608972] i915 0000:00:02.0: [drm] drm_WARN_ON(!display->platform.skylake && !display->platform.kabylake)
[5.608995] WARNING: CPU: 3 PID: 440 at drivers/gpu/drm/i915/display/intel_pch.c:126 intel_pch_type+0x1af/0xae0 [i915]
[5.609317] CPU: 3 UID: 0 PID: 440 Comm: (udev-worker) Not tainted 6.15.0-rc3-drm-tip-2fa6469c618d #3 PREEMPT(voluntary)
Signed-off-by: Jiajia Liu <liujiajia@kylinos.cn>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250423073730.585181-1-liujiajia@kylinos.cn
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Sometimes engine reset fails because the engine resumes from an
incorrect RING_HEAD. Engine head failed to set to zero even after
writing into it. This is a timing issue and we experimented
different values and found out that 20ms delay works best based
on testing.
So, add a 20ms delay to let engine resumes from correct RING_HEAD.
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13968
Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Link: https://lore.kernel.org/r/20250416103640.212269-1-nitin.r.gote@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Merge drm-misc-next to get commit Fixes: fec450ca15af ("drm/display:
hdmi: provide central data authority for ACR params").
Signed-off-by: Rob Clark <robdclark@chromium.org>
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The guc_info debugfs attempts to read a bunch of registers that the VFs
doesn't have access to, so fix it by skipping the reads.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4775
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lukasz Laguna <lukasz.laguna@intel.com>
Reviewed-by: Lukasz Laguna <lukasz.laguna@intel.com>
Link: https://lore.kernel.org/r/20250423173908.1571412-1-daniele.ceraolospurio@intel.com
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Now that include/linux/bits.h implements fixed-width GENMASK_U*(), use
them to implement the i915/xe specific macros. Converting each driver
to use the generic macros are left for later, when/if other
driver-specific macros are also generalized.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
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The 'has_dma_mapping' flag should be set once there is a
mapping so it could be unmapped in case of error.
v2:
- Resend for CI
Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250428024752.881292-1-matthew.brost@intel.com
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CSW MNE007QS3-8 EDID:
edid-decode (hex):
00 ff ff ff ff ff ff 00 0e 77 57 14 00 00 00 00
34 22 01 04 a5 1e 13 78 07 ee 95 a3 54 4c 99 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 cd 7c 80 a0 70 b0 50 40 30 20
26 04 2e bc 10 00 00 1a cd 7c 80 a0 70 b0 50 45
30 20 26 04 2e bc 10 00 00 1a 00 00 00 fd 00 1e
78 9a 9a 20 01 0a 20 20 20 20 20 20 00 00 00 fc
00 4d 4e 45 30 30 37 51 53 33 2d 38 0a 20 01 3f
70 20 79 02 00 21 00 1d c8 0b 5d 07 80 07 b0 04
80 3d 8a 54 cd a4 99 66 62 0f 02 45 54 7c 5d 7c
5d 00 43 12 78 2b 00 0c 27 00 1e 77 00 00 27 00
1e 3b 00 00 2e 00 06 00 43 7c 5d 7c 5d 81 00 20
74 1a 00 00 03 01 1e 78 00 00 5a ff 5a ff 78 00
00 00 00 8d 00 e3 05 04 00 e6 06 01 01 5a 5a ff
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 76 90
Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250429092030.8025-4-xiazhengqiao@huaqin.corp-partner.google.com
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BOE NE140WUM-N6S EDID:
edid-decode (hex):
00 ff ff ff ff ff ff 00 09 e5 73 0d 00 00 00 00
32 22 01 04 a5 1e 13 78 07 13 45 a6 54 4d a0 27
0c 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 03 3e 80 a0 70 b0 48 40 30 20
36 00 2e bc 10 00 00 1a 00 00 00 fd 00 1e 78 99
99 20 01 0a 20 20 20 20 20 20 00 00 00 fc 00 4e
45 31 34 30 57 55 4d 2d 4e 36 53 0a 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 45
70 20 79 02 00 22 00 14 33 d8 04 85 7f 07 9f 00
2f 00 1f 00 af 04 47 00 02 00 05 00 81 00 13 72
1a 00 00 03 01 1e 78 00 00 5a 4a 5a 4a 78 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 ad 90
Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250429092030.8025-3-xiazhengqiao@huaqin.corp-partner.google.com
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AUO B140QAN08.H EDID:
edid-decode (hex):
00 ff ff ff ff ff ff 00 06 af b9 fe 00 00 00 00
00 23 01 04 a5 1e 13 78 03 c1 45 a8 55 48 9d 24
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 18 86 40 a0 b0 08 52 70 30 20
65 00 2d bc 10 00 00 18 00 00 00 0f 00 00 00 00
00 00 00 00 00 00 00 00 00 20 00 00 00 fd 00 28
3c 71 71 22 01 0a 20 20 20 20 20 20 00 00 00 fc
00 42 31 34 30 51 41 4e 30 38 2e 48 20 0a 01 79
70 20 79 02 00 21 01 1d c2 0b 58 07 40 0b 08 07
88 8b fa 54 7e 24 9d 45 12 0f 02 35 54 40 5e 40
5e 00 44 12 78 22 00 14 ef 3c 05 85 3f 0b 9f 00
2f 80 1f 00 07 07 51 00 05 00 04 00 25 01 09 ef
3c 05 ef 3c 05 28 3c 80 2e 00 06 00 44 40 5e 40
5e 81 00 15 74 1a 00 00 03 00 28 3c 00 00 60 ff
60 ff 3c 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 4f 90
Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250429092030.8025-2-xiazhengqiao@huaqin.corp-partner.google.com
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Commit a3707f53eb3f ("drm/panthor: show device-wide list of DRM GEM
objects over DebugFS") causes a build warning and linking error when
built without support for DebugFS, because of a non-inline non-static
function declaration in a header file.
On top of that, the function is only being used inside a single
compilation unit, so there is no point in exposing it as a global
symbol.
This is a follow-up from Arnd Bergmann's first fix.
Also move panthor_gem_debugfs_set_usage_flags() into panthor_gem.c and
declare it static.
Fixes: a3707f53eb3f ("drm/panthor: show device-wide list of DRM GEM objects over DebugFS")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Closes: https://lore.kernel.org/dri-devel/20250424142419.47b9d457@collabora.com/T/#t
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/r/20250424184041.356191-1-adrian.larumbe@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
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On r6x2b6x2g6x2 displays not enough blank data is sent to blank the
entire screen. When support for these displays was added, the dirty
function was updated to handle the different amount of data, but
blanking was not, and remained hardcoded as 2 bytes per pixel.
This change applies almost the same algorithm used in the dirty function
to the blank function, but there is no fb available at that point, and
no concern about having to transform any data, so the dbidev pixel
format is always used for calculating the length.
Fixes: 4aebb79021f3 ("drm/mipi-dbi: Add support for DRM_FORMAT_RGB888")
Signed-off-by: Russell Cloran <rcloran@gmail.com>
Link: https://lore.kernel.org/r/20250415053259.79572-1-rcloran@gmail.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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The drm_gem_shmem_test_get_pages_sgt() gets a scatter-gather table using
the drm_gem_shmem_get_sg_table() function and rightfully calls
sg_free_table() on it. However, it's also supposed to kfree() the
returned sg_table, but doesn't.
This leads to a memory leak, reported by kmemleak. Fix it by adding a
kunit action to kfree the sgt when the test ends.
Reported-by: Philipp Stanner <phasta@mailbox.org>
Closes: https://lore.kernel.org/dri-devel/a7655158a6367ac46194d57f4b7433ef0772a73e.camel@mailbox.org/
Fixes: 93032ae634d4 ("drm/test: add a test suite for GEM objects backed by shmem")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250408140758.1831333-1-mripard@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Following the convention, convert intel_hdmi.c to use an intel_connector
pointer everywhere, calling this pointer connector. If the intel
connector must be casted from a drm_connector, call this pointer
_connector and use this pointer only for the casting.
v2: Use for_each_new_intel_connector_in_state(). (Jani)
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250428134716.3396802-3-imre.deak@intel.com
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Following the convention, convert intel_dp.c to use an intel_connector
pointer everywhere, calling this pointer connector. If the intel
connector must be casted from a drm_connector, call this pointer
_connector and use this pointer only for the casting.
v2: Use for_each_intel_connector_iter(). (Jani)
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250428134716.3396802-2-imre.deak@intel.com
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The appletbdrm driver is exclusively for Touch Bars on x86 Intel Macs.
The M1 Macs have a separate driver. So, lets avoid compiling it for
other architectures.
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://lore.kernel.org/r/PN3PR01MB95970778982F28E4A3751392B8B72@PN3PR01MB9597.INDPRD01.PROD.OUTLOOK.COM
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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LNCF registers report wrong values when XE_FORCEWAKE_GT
only is held. Holding XE_FORCEWAKE_ALL ensures correct
operations on LNCF regs.
V2(Himal):
- Use xe_force_wake_ref_has_domain
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1999
Fixes: a6a4ea6d7d37 ("drm/xe: Add mocs kunit")
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250428082357.1730068-1-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
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The newly added driver calls drm_client_setup(), but that is not
always built in:
x86_64-linux-ld: vmlinux.o: in function `st7571_probe':
st7571-i2c.c:(.text+0x7b7119): undefined reference to `drm_client_setup'
Select the appropriate Kconfig symbol.
Fixes: 4b35f0f41ee2 ("drm/st7571-i2c: add support for Sitronix ST7571 LCD controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://lore.kernel.org/r/20250428150752.3970145-1-arnd@kernel.org
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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This is the new API for allocating DRM bridges.
These two drivers are tangled together by the ldb_add_bridge_helper(), so
they are converted at once.
They also have a similar design, each embedding an array of channels in
their main struct, and each channel embeds a drm_bridge. This prevents
dynamic, refcount-based deallocation of the bridges.
To make the new, dynamic bridge allocation possible:
* change the array of channels into an array of channel pointers
* allocate each channel using devm_drm_bridge_alloc()
* adapt ldb_add_bridge_helper() to not set the funcs pointer
(now done by devm_drm_bridge_alloc())
* adapt the code wherever using the channels
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Acked-by: Liu Ying <victor.liu@nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-31-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
This driver already implements refcounting of the struct vc4_dsi, which
embeds struct drm_bridge. Now this is a duplicate of the refcounting
implemented by the DRM bridge core, so convert the vc4_dsi_get/put() calls
into drm_bridge_get/put() calls and get rid of the driver-specific
refcounting implementation.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-27-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-18-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-17-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-16-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-15-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-14-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-13-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-12-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-11-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-7-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-6-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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This is the new API for allocating DRM bridges.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Andy Yan <andyshrk@163.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-3-8f91a404d86b@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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The list of registers to capture on a GPU hang includes some that
require steering. Unfortunately, the flag to say this was being wiped
to due a missing OR on the assignment of the next flag field.
Fix that.
Fixes: b170d696c1e2 ("drm/xe/guc: Add XE_LP steered register lists")
Cc: Zhanjun Dong <zhanjun.dong@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-xe@lists.freedesktop.org
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Zhanjun Dong <zhanjun.dong@intel.com>
Link: https://lore.kernel.org/r/20250417195215.3002210-2-John.C.Harrison@Intel.com
(cherry picked from commit 532da44b54a10d50ebad14a8a02bd0b78ec23e8b)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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xe_svm_range_alloc() returns ERR_PTR(-ENOMEM) on failure and there is a
dereference of "range" after that:
--> range->gpusvm = gpusvm;
In xe_svm_range_alloc(), when memory allocation fails return NULL
instead to handle this situation.
Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/adaef4dd-5866-48ca-bc22-4a1ddef20381@stanley.mountain/
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250323124907.3946370-1-harshit.m.mogalapalli@oracle.com
(cherry picked from commit 7a0322122cfdd9a6f10fc7701023d75c98eb3d22)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Using "depends on" and "select" for the same Kconfig symbol is known to
cause circular dependencies (cmp. "Kconfig recursive dependency
limitations" in Documentation/kbuild/kconfig-language.rst.
DRM drivers are selecting drm helpers so do the same for
DRM_DEBUG_DP_MST_TOPOLOGY_REFS.
Fixes following circular dependency reported on x86 for the downstream
Asahi Linux tree:
error: recursive dependency detected!
symbol DRM_KMS_HELPER is selected by DRM_GEM_SHMEM_HELPER
symbol DRM_GEM_SHMEM_HELPER is selected by RUST_DRM_GEM_SHMEM_HELPER
symbol RUST_DRM_GEM_SHMEM_HELPER is selected by DRM_ASAHI
symbol DRM_ASAHI depends on RUST
symbol RUST depends on CALL_PADDING
symbol CALL_PADDING depends on OBJTOOL
symbol OBJTOOL is selected by STACK_VALIDATION
symbol STACK_VALIDATION depends on UNWINDER_FRAME_POINTER
symbol UNWINDER_FRAME_POINTER is part of choice block at arch/x86/Kconfig.debug:224
symbol <choice> unknown is visible depending on UNWINDER_GUESS
symbol UNWINDER_GUESS prompt is visible depending on STACKDEPOT
symbol STACKDEPOT is selected by DRM_DEBUG_DP_MST_TOPOLOGY_REFS
symbol DRM_DEBUG_DP_MST_TOPOLOGY_REFS depends on DRM_KMS_HELPER
Fixes: 12a280c72868 ("drm/dp_mst: Add topology ref history tracking for debugging")
Cc: stable@vger.kernel.org
Signed-off-by: Janne Grunau <j@jannau.net>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250304-drm_debug_dp_mst_topo_kconfig-v1-1-e16fd152f258@jannau.net
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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Interrupt handlers run with interrupts disabled so it is not necessary
to protect them against reentrancy.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20250428-drm_adp_fixes-v2-4-912e081e55d8@jannau.net
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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Calling drm_crtc_vblank_on() drm_crtc_helper_funcs' atomic_enable is
expected to enable vblank interrupts. It may have been avoided here to
due to drm_crtc_vblank_get()'s error behavior after
drm_crtc_vblank_reset(). With that fixed in the preceding change the
driver can call drm_crtc_vblank_on() from adp_crtc_atomic_enable().
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20250428-drm_adp_fixes-v2-3-912e081e55d8@jannau.net
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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drm_crtc_vblank_get() may fail when it's called before
drm_crtc_vblank_on() on a resetted CRTC. This occurs in
drm_crtc_helper_funcs' atomic_flush() calls after
drm_atomic_helper_crtc_reset() for example directly after probe. Send
the vblank event directly in such cases. Avoids following warning in
the subsequent drm_crtc_vblank_put() call from the vblank irq handler as
below:
adp 228200000.display-pipe: [drm] drm_WARN_ON(atomic_read(&vblank->refcount) == 0)
WARNING: CPU: 5 PID: 1206 at drivers/gpu/drm/drm_vblank.c:1247 drm_vblank_put+0x158/0x170
...
Call trace:
drm_vblank_put+0x158/0x170 (P)
drm_crtc_vblank_put+0x24/0x38
adp_fe_irq+0xd8/0xe8 [adpdrm]
__handle_irq_event_percpu+0x94/0x318
handle_irq_event+0x54/0xd0
handle_fasteoi_irq+0xa8/0x240
handle_irq_desc+0x3c/0x68
generic_handle_domain_irq+0x24/0x40
Modifying `crtc->state->event` here is fine as crtc->mutex is locked by
the non-async atomic commit. In retrospect this looks so obvious that it
doesn't warrant a comment in the file.
Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://lore.kernel.org/r/20250428-drm_adp_fixes-v2-2-912e081e55d8@jannau.net
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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The lock is used in the interrupt handler so use spin_lock_irqsave to
disable interrupts and avoid deadlocks with the irq handler.
Fixes: 332122eba628 ("drm: adp: Add Apple Display Pipe driver")
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20250428-drm_adp_fixes-v2-1-912e081e55d8@jannau.net
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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If we unbind a driver from the PCI device with an active DRM client,
subsequent read of the fdinfo data associated with the file descriptor in
question will not end well.
Protect the path with a drm_dev_enter/exit() pair.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Fixes: 3f09a0cd4ea3 ("drm: Add common fdinfo helper")
Cc: <stable@vger.kernel.org> # v6.5+
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250418162512.72324-1-tvrtko.ursulin@igalia.com
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Additional backmerge to avoid excessive diffstats when
sending PR.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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According to Mali manuals, the powerup sequence should be
enable pd, asserting the reset then enabling the clock and
the reverse for powerdown.
Reviewed-by: Steven Price <steven.price@arm.com>
Tested-by: John Williams <porschemad911@gmail.com>
Signed-off-by: Philippe Simons <simons.philippe@gmail.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250403055210.54486-4-simons.philippe@gmail.com
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Tie the Allwinner compatible string to the GPU_PM_RT feature bits that will
toggle the clocks and the reset line whenever the power domain is changing
state.
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Philippe Simons <simons.philippe@gmail.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250403055210.54486-3-simons.philippe@gmail.com
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When the GPU is the only device attached to a single power domain,
core genpd disable and enable it when gpu enter and leave runtime suspend.
Some power-domain requires a sequence before disabled,
and the reverse when enabled.
Add GPU_PM_RT flag, and implement in
panfrost_device_runtime_suspend/resume.
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Philippe Simons <simons.philippe@gmail.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250403055210.54486-2-simons.philippe@gmail.com
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Logical place for PSR workaround needing vblank delay is in
intel_psr_min_vblank_delay. Move it there.
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://lore.kernel.org/r/20250423102704.1368310-2-jouni.hogander@intel.com
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