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Unused since commit a78a8da51b36
("drm/ttm: replace busy placement with flags v6")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Reviewed-by: Martin Krastev <martin.krastev@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250108201355.2521070-1-ian.forbes@broadcom.com
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Unlock BOs in reverse order.
Add an acquire context so that lockdep doesn't complain.
Fixes: d6667f0ddf46 ("drm/vmwgfx: Fix handling of dumb buffers")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241210195535.2074918-1-ian.forbes@broadcom.com
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The recently introduced hotplug event handler in the HDMI Connector
framework attempts to unconditionally read the EDID data, leading to a
bunch of non-harmful, yet quite annoying DDC/I2C related errors being
reported.
Ensure the operation is done only for connectors having the status
connected or unknown. Additionally, perform an explicit reset of the
connector information when dealing with a disconnected status.
Fixes: ab716b74dc9d ("drm/display/hdmi: implement hotplug functions")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113-hdmi-conn-edid-read-fix-v2-1-d2a0438a44ab@collabora.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Atomic check should succeed when disabling a connector. Add a test
case drm_test_check_disabling_connector() to make sure of this.
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250110084821.3239518-3-victor.liu@nxp.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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It's ok to pass atomic check successfully if an atomic commit tries to
disable the display pipeline which the connector belongs to. That is,
when the crtc or the best_encoder pointers in struct drm_connector_state
are NULL, drm_atomic_helper_connector_hdmi_check() should return 0.
Without the check against the NULL pointers, drm_default_rgb_quant_range()
called by drm_atomic_helper_connector_hdmi_check() would dereference
the NULL pointer to_match in drm_match_cea_mode().
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Call trace:
drm_default_rgb_quant_range+0x0/0x4c (P)
drm_bridge_connector_atomic_check+0x20/0x2c
drm_atomic_helper_check_modeset+0x488/0xc78
drm_atomic_helper_check+0x20/0xa4
drm_atomic_check_only+0x4b8/0x984
drm_atomic_commit+0x48/0xc4
drm_framebuffer_remove+0x44c/0x530
drm_mode_rmfb_work_fn+0x7c/0xa0
process_one_work+0x150/0x294
worker_thread+0x2dc/0x3dc
kthread+0x130/0x204
ret_from_fork+0x10/0x20
Fixes: 8ec116ff21a9 ("drm/display: bridge_connector: provide atomic_check for HDMI bridges")
Fixes: 84e541b1e58e ("drm/sun4i: use drm_atomic_helper_connector_hdmi_check()")
Fixes: 65548c8ff0ab ("drm/rockchip: inno_hdmi: Switch to HDMI connector")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250110084821.3239518-2-victor.liu@nxp.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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FW attestation was disabled on MP0_14_0_{2/3}.
V2:
Move check into is_fw_attestation_support func. (Frank)
Remove DRM_WARN log info. (Alex)
Fix format. (Christian)
Signed-off-by: Gui Chengming <Jack.Gui@amd.com>
Reviewed-by: Frank.Min <Frank.Min@amd.com>
Reviewed-by: Christian König <Christian.Koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 62952a38d9bcf357d5ffc97615c48b12c9cd627c)
Cc: stable@vger.kernel.org # 6.12.x
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That is needed to enforce isolation between contexts.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit def59436fb0d3ca0f211d14873d0273d69ebb405)
Cc: stable@vger.kernel.org
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Disable gfxoff with the compute workload on gfx12. This is a
workaround for the opencl test failure.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2affe2bbc997b3920045c2c434e480c81a5f9707)
Cc: stable@vger.kernel.org # 6.12.x
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This commit addresses a circular locking dependency issue within the GFX
isolation mechanism. The problem was identified by a warning indicating
a potential deadlock due to inconsistent lock acquisition order.
- The `amdgpu_gfx_enforce_isolation_ring_begin_use` and
`amdgpu_gfx_enforce_isolation_ring_end_use` functions previously
acquired `enforce_isolation_mutex` and called `amdgpu_gfx_kfd_sch_ctrl`,
leading to potential deadlocks. ie., If `amdgpu_gfx_kfd_sch_ctrl` is
called while `enforce_isolation_mutex` is held, and
`amdgpu_gfx_enforce_isolation_handler` is called while `kfd_sch_mutex` is
held, it can create a circular dependency.
By ensuring consistent lock usage, this fix resolves the issue:
[ 606.297333] ======================================================
[ 606.297343] WARNING: possible circular locking dependency detected
[ 606.297353] 6.10.0-amd-mlkd-610-311224-lof #19 Tainted: G OE
[ 606.297365] ------------------------------------------------------
[ 606.297375] kworker/u96:3/3825 is trying to acquire lock:
[ 606.297385] ffff9aa64e431cb8 ((work_completion)(&(&adev->gfx.enforce_isolation[i].work)->work)){+.+.}-{0:0}, at: __flush_work+0x232/0x610
[ 606.297413]
but task is already holding lock:
[ 606.297423] ffff9aa64e432338 (&adev->gfx.kfd_sch_mutex){+.+.}-{3:3}, at: amdgpu_gfx_kfd_sch_ctrl+0x51/0x4d0 [amdgpu]
[ 606.297725]
which lock already depends on the new lock.
[ 606.297738]
the existing dependency chain (in reverse order) is:
[ 606.297749]
-> #2 (&adev->gfx.kfd_sch_mutex){+.+.}-{3:3}:
[ 606.297765] __mutex_lock+0x85/0x930
[ 606.297776] mutex_lock_nested+0x1b/0x30
[ 606.297786] amdgpu_gfx_kfd_sch_ctrl+0x51/0x4d0 [amdgpu]
[ 606.298007] amdgpu_gfx_enforce_isolation_ring_begin_use+0x2a4/0x5d0 [amdgpu]
[ 606.298225] amdgpu_ring_alloc+0x48/0x70 [amdgpu]
[ 606.298412] amdgpu_ib_schedule+0x176/0x8a0 [amdgpu]
[ 606.298603] amdgpu_job_run+0xac/0x1e0 [amdgpu]
[ 606.298866] drm_sched_run_job_work+0x24f/0x430 [gpu_sched]
[ 606.298880] process_one_work+0x21e/0x680
[ 606.298890] worker_thread+0x190/0x350
[ 606.298899] kthread+0xe7/0x120
[ 606.298908] ret_from_fork+0x3c/0x60
[ 606.298919] ret_from_fork_asm+0x1a/0x30
[ 606.298929]
-> #1 (&adev->enforce_isolation_mutex){+.+.}-{3:3}:
[ 606.298947] __mutex_lock+0x85/0x930
[ 606.298956] mutex_lock_nested+0x1b/0x30
[ 606.298966] amdgpu_gfx_enforce_isolation_handler+0x87/0x370 [amdgpu]
[ 606.299190] process_one_work+0x21e/0x680
[ 606.299199] worker_thread+0x190/0x350
[ 606.299208] kthread+0xe7/0x120
[ 606.299217] ret_from_fork+0x3c/0x60
[ 606.299227] ret_from_fork_asm+0x1a/0x30
[ 606.299236]
-> #0 ((work_completion)(&(&adev->gfx.enforce_isolation[i].work)->work)){+.+.}-{0:0}:
[ 606.299257] __lock_acquire+0x16f9/0x2810
[ 606.299267] lock_acquire+0xd1/0x300
[ 606.299276] __flush_work+0x250/0x610
[ 606.299286] cancel_delayed_work_sync+0x71/0x80
[ 606.299296] amdgpu_gfx_kfd_sch_ctrl+0x287/0x4d0 [amdgpu]
[ 606.299509] amdgpu_gfx_enforce_isolation_ring_begin_use+0x2a4/0x5d0 [amdgpu]
[ 606.299723] amdgpu_ring_alloc+0x48/0x70 [amdgpu]
[ 606.299909] amdgpu_ib_schedule+0x176/0x8a0 [amdgpu]
[ 606.300101] amdgpu_job_run+0xac/0x1e0 [amdgpu]
[ 606.300355] drm_sched_run_job_work+0x24f/0x430 [gpu_sched]
[ 606.300369] process_one_work+0x21e/0x680
[ 606.300378] worker_thread+0x190/0x350
[ 606.300387] kthread+0xe7/0x120
[ 606.300396] ret_from_fork+0x3c/0x60
[ 606.300406] ret_from_fork_asm+0x1a/0x30
[ 606.300416]
other info that might help us debug this:
[ 606.300428] Chain exists of:
(work_completion)(&(&adev->gfx.enforce_isolation[i].work)->work) --> &adev->enforce_isolation_mutex --> &adev->gfx.kfd_sch_mutex
[ 606.300458] Possible unsafe locking scenario:
[ 606.300468] CPU0 CPU1
[ 606.300476] ---- ----
[ 606.300484] lock(&adev->gfx.kfd_sch_mutex);
[ 606.300494] lock(&adev->enforce_isolation_mutex);
[ 606.300508] lock(&adev->gfx.kfd_sch_mutex);
[ 606.300521] lock((work_completion)(&(&adev->gfx.enforce_isolation[i].work)->work));
[ 606.300536]
*** DEADLOCK ***
[ 606.300546] 5 locks held by kworker/u96:3/3825:
[ 606.300555] #0: ffff9aa5aa1f5d58 ((wq_completion)comp_1.1.0){+.+.}-{0:0}, at: process_one_work+0x3f5/0x680
[ 606.300577] #1: ffffaa53c3c97e40 ((work_completion)(&sched->work_run_job)){+.+.}-{0:0}, at: process_one_work+0x1d6/0x680
[ 606.300600] #2: ffff9aa64e463c98 (&adev->enforce_isolation_mutex){+.+.}-{3:3}, at: amdgpu_gfx_enforce_isolation_ring_begin_use+0x1c3/0x5d0 [amdgpu]
[ 606.300837] #3: ffff9aa64e432338 (&adev->gfx.kfd_sch_mutex){+.+.}-{3:3}, at: amdgpu_gfx_kfd_sch_ctrl+0x51/0x4d0 [amdgpu]
[ 606.301062] #4: ffffffff8c1a5660 (rcu_read_lock){....}-{1:2}, at: __flush_work+0x70/0x610
[ 606.301083]
stack backtrace:
[ 606.301092] CPU: 14 PID: 3825 Comm: kworker/u96:3 Tainted: G OE 6.10.0-amd-mlkd-610-311224-lof #19
[ 606.301109] Hardware name: Gigabyte Technology Co., Ltd. X570S GAMING X/X570S GAMING X, BIOS F7 03/22/2024
[ 606.301124] Workqueue: comp_1.1.0 drm_sched_run_job_work [gpu_sched]
[ 606.301140] Call Trace:
[ 606.301146] <TASK>
[ 606.301154] dump_stack_lvl+0x9b/0xf0
[ 606.301166] dump_stack+0x10/0x20
[ 606.301175] print_circular_bug+0x26c/0x340
[ 606.301187] check_noncircular+0x157/0x170
[ 606.301197] ? register_lock_class+0x48/0x490
[ 606.301213] __lock_acquire+0x16f9/0x2810
[ 606.301230] lock_acquire+0xd1/0x300
[ 606.301239] ? __flush_work+0x232/0x610
[ 606.301250] ? srso_alias_return_thunk+0x5/0xfbef5
[ 606.301261] ? mark_held_locks+0x54/0x90
[ 606.301274] ? __flush_work+0x232/0x610
[ 606.301284] __flush_work+0x250/0x610
[ 606.301293] ? __flush_work+0x232/0x610
[ 606.301305] ? __pfx_wq_barrier_func+0x10/0x10
[ 606.301318] ? mark_held_locks+0x54/0x90
[ 606.301331] ? srso_alias_return_thunk+0x5/0xfbef5
[ 606.301345] cancel_delayed_work_sync+0x71/0x80
[ 606.301356] amdgpu_gfx_kfd_sch_ctrl+0x287/0x4d0 [amdgpu]
[ 606.301661] amdgpu_gfx_enforce_isolation_ring_begin_use+0x2a4/0x5d0 [amdgpu]
[ 606.302050] ? srso_alias_return_thunk+0x5/0xfbef5
[ 606.302069] amdgpu_ring_alloc+0x48/0x70 [amdgpu]
[ 606.302452] amdgpu_ib_schedule+0x176/0x8a0 [amdgpu]
[ 606.302862] ? drm_sched_entity_error+0x82/0x190 [gpu_sched]
[ 606.302890] amdgpu_job_run+0xac/0x1e0 [amdgpu]
[ 606.303366] drm_sched_run_job_work+0x24f/0x430 [gpu_sched]
[ 606.303388] process_one_work+0x21e/0x680
[ 606.303409] worker_thread+0x190/0x350
[ 606.303424] ? __pfx_worker_thread+0x10/0x10
[ 606.303437] kthread+0xe7/0x120
[ 606.303449] ? __pfx_kthread+0x10/0x10
[ 606.303463] ret_from_fork+0x3c/0x60
[ 606.303476] ? __pfx_kthread+0x10/0x10
[ 606.303489] ret_from_fork_asm+0x1a/0x30
[ 606.303512] </TASK>
v2: Refactor lock handling to resolve circular dependency (Alex)
- Introduced a `sched_work` flag to defer the call to
`amdgpu_gfx_kfd_sch_ctrl` until after releasing
`enforce_isolation_mutex`.
- This change ensures that `amdgpu_gfx_kfd_sch_ctrl` is called outside
the critical section, preventing the circular dependency and deadlock.
- The `sched_work` flag is set within the mutex-protected section if
conditions are met, and the actual function call is made afterward.
- This approach ensures consistent lock acquisition order.
Fixes: afefd6f24502 ("drm/amdgpu: Implement Enforce Isolation Handler for KGD/KFD serialization")
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 0b6b2dd38336d5fd49214f0e4e6495e658e3ab44)
Cc: stable@vger.kernel.org
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The yt2_1380_fc_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.
This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.
Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().
Note, serdev_device_set_baudrate() and serdev_device_set_flow_control()
calls should be after the devm_serdev_device_open() call.
Fixes: b2ed33e8d486 ("platform/x86: Add lenovo-yoga-tab2-pro-1380-fastcharger driver")
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250111180951.2277757-1-chenyuan0y@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.
This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.
Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().
Note, serdev_device_set_baudrate() and serdev_device_set_flow_control()
calls should be after the devm_serdev_device_open() call.
Fixes: 484bae9e4d6a ("platform/x86: Add new Dell UART backlight driver")
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250111180118.2274516-1-chenyuan0y@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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irq_chip functions may be called in raw spinlock context. Therefore, we
must also use a raw spinlock for our own internal locking.
This fixes the following lockdep splat:
[ 5.349336] =============================
[ 5.353349] [ BUG: Invalid wait context ]
[ 5.357361] 6.13.0-rc5+ #69 Tainted: G W
[ 5.363031] -----------------------------
[ 5.367045] kworker/u17:1/44 is trying to lock:
[ 5.371587] ffffff88018b02c0 (&chip->gpio_lock){....}-{3:3}, at: xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))
[ 5.380079] other info that might help us debug this:
[ 5.385138] context-{5:5}
[ 5.387762] 5 locks held by kworker/u17:1/44:
[ 5.392123] #0: ffffff8800014958 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3204)
[ 5.402260] #1: ffffffc082fcbdd8 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3205)
[ 5.411528] #2: ffffff880172c900 (&dev->mutex){....}-{4:4}, at: __device_attach (drivers/base/dd.c:1006)
[ 5.419929] #3: ffffff88039c8268 (request_class#2){+.+.}-{4:4}, at: __setup_irq (kernel/irq/internals.h:156 kernel/irq/manage.c:1596)
[ 5.428331] #4: ffffff88039c80c8 (lock_class#2){....}-{2:2}, at: __setup_irq (kernel/irq/manage.c:1614)
[ 5.436472] stack backtrace:
[ 5.439359] CPU: 2 UID: 0 PID: 44 Comm: kworker/u17:1 Tainted: G W 6.13.0-rc5+ #69
[ 5.448690] Tainted: [W]=WARN
[ 5.451656] Hardware name: xlnx,zynqmp (DT)
[ 5.455845] Workqueue: events_unbound deferred_probe_work_func
[ 5.461699] Call trace:
[ 5.464147] show_stack+0x18/0x24 C
[ 5.467821] dump_stack_lvl (lib/dump_stack.c:123)
[ 5.471501] dump_stack (lib/dump_stack.c:130)
[ 5.474824] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)
[ 5.478758] lock_acquire (arch/arm64/include/asm/percpu.h:40 kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851 kernel/locking/lockdep.c:5814)
[ 5.482429] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)
[ 5.486797] xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))
[ 5.490737] irq_enable (kernel/irq/internals.h:236 kernel/irq/chip.c:170 kernel/irq/chip.c:439 kernel/irq/chip.c:432 kernel/irq/chip.c:345)
[ 5.494060] __irq_startup (kernel/irq/internals.h:241 kernel/irq/chip.c:180 kernel/irq/chip.c:250)
[ 5.497645] irq_startup (kernel/irq/chip.c:270)
[ 5.501143] __setup_irq (kernel/irq/manage.c:1807)
[ 5.504728] request_threaded_irq (kernel/irq/manage.c:2208)
Fixes: a32c7caea292 ("gpio: gpio-xilinx: Add interrupt support")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250110163354.2012654-1-sean.anderson@linux.dev
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Remove PSE-specific structures from the ethtool header to improve code
modularity, maintain independent headers, and reduce incremental build
time.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The PI of_node was not assigned in the regulator_config structure, leading
to failures in resolving the correct supply when different power supplies
are assigned to multiple PIs of a PSE controller. This fix ensures that the
of_node is properly set in the regulator_config, allowing accurate supply
resolution for each PI.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Expand PSE callbacks to support the newly introduced
pi_get/set_pw_limit() and pi_get_voltage() functions. These callbacks
allow for power limit configuration in the TPS23881 controller.
Additionally, the patch includes the pi_get_pw_class() the
pi_get_actual_pw(), and the pi_get_pw_limit_ranges') callbacks providing
more comprehensive PoE status reporting.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The is_enabled callback is now redundant as the admin_state can be obtained
directly from the driver and provides the same information.
To simplify functionality, the core will handle this internally, making
the is_enabled callback unnecessary at the driver level. Remove the
callback from all drivers.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The ethtool_get_status callback currently handles all status and PSE
information within a single function. This approach has two key
drawbacks:
1. If the core requires some information for purposes other than
ethtool_get_status, redundant code will be needed to fetch the same
data from the driver (like is_enabled).
2. Drivers currently have access to all information passed to ethtool.
New variables will soon be added to ethtool status, such as PSE ID,
power domain IDs, and budget evaluation strategies, which are meant
to be managed solely by the core. Drivers should not have the ability
to modify these variables.
To resolve these issues, ethtool_get_status has been split into multiple
callbacks, with each handling a specific piece of information required
by ethtool or the core.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The regulator framework uses current limits, but the PSE standard and
known PSE controllers rely on power limits. Instead of converting
current to power within each driver, perform the conversion in the PSE
core. This avoids redundancy in driver implementation and aligns better
with the standard, simplifying driver development.
Remove at the same time the _pse_ethtool_get_status() function which is
not needed anymore.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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When setting the PWOFF register, the controller resets multiple
configuration registers. This patch ensures these registers are
reconfigured as needed following a disable operation.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This driver frequently follows a pattern where two registers are read or
written in a single operation, followed by calculating the bit offset for
a specific channel.
Introduce helpers to streamline this process and reduce code redundancy,
making the codebase cleaner and more maintainable.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Cleaned up several functions in tps23881 by removing redundant checks on
return values at the end of functions. These check has been removed, and
the return statement now directly returns the function result, reducing
the code's complexity and making it more concise.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Kyle Swenson <kyle.swenson@est.tech>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Checking only the current limit is not sufficient. According to the
standard, voltage can reach up to 57V and current up to 1.92A, which
exceeds the power limit described in the standard (99.9W). Add a power
limit check to prevent this.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Setting the max_uA constraint in the regulator API imposes a current
limit during the regulator registration process. This behavior conflicts
with preserving the maximum PI power budget configuration across reboots.
Instead, compare the desired current limit to MAX_PI_CURRENT in the
pse_pi_set_current_limit() function to ensure proper handling of the
power budget.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The configuration of mt7992 iBF has some differences to mt7996, rework
related code to make it work.
Also, most of our chipsets support iBF only on HT and VHT mode, except
mt7992 variant that has 5T on 5GHz band also supports iBF on HE and EHT
mode.
Co-developed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-9-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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When stopping AP, mac80211 frees beacon template before it calls
driver's stop_ap operation. In other words, on the path of stopping
AP, ieee80211_beacon_get_template() must returns NULL in
mt7996_mcu_add_beacon(). In such case mt7996 immediately returns
-EINVAL without telling FW to disable the beacon.
This commit refactors mt7996_mcu_add_beacon() so that FW can be
correctly informed when disabling AP interface.
Co-developed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-8-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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The non-AP interfaces would not use conf->vht_ldpc so they never set
STA_CAP_VHT_LDPC even if peer-station support LDPC.
Check conf->vht_ldpc only for AP interface.
Without this patch, station only uses BCC to transmit packet in VHT mode.
Fixes: dda423dd65c3 ("wifi: mt76: mt7996: remove mt7996_mcu_beacon_check_caps()")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-7-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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For mt7992 chipsets, the definition of TXD.DW6.BIT10~15 has different
interpretations on different frame types. Driver only needs to fill
MSDU_CNT for non-management frames.
Fixes: 408566db8cad ("wifi: mt76: connac: add new definition of tx descriptor")
Co-developed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-6-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Adjust HE and EHT phy capabilities based on the band constraints.
For 2g band, we shall not enable the capabilities above 40MHz.
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-5-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Fix wrong calculation of the channel times due to incorrect
interpretation from the FW event.
Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-4-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Set HE SU PPDU And HE MU PPDU With 4x HE-LTF And 0.8 us GI within HE PHY
Capabilities element as 1 since hardware can support.
Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-3-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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This commit includes two changes. First, enable "EHT MU PPDU With 4x
EHT-LTF And 0.8us GI" in EHT Phy capabilities element since hardware
can support. Second, fix the value of "Maximum number of supported
EHT LTFs" in the same element, where the previous setting of 3 in
Bit 3-4 was incorrect.
Fixes: 348533eb968d ("wifi: mt76: mt7996: add EHT capability init")
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-2-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Set max mpdu len to 11454 according to hardware capability.
Without this patch, the max ampdu length would be 3895 and count not get
expected performance.
Fixes: 348533eb968d ("wifi: mt76: mt7996: add EHT capability init")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250114101026.3587702-1-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Some countries have strict RF restrictions where changing the regulatory
domain dynamically based on the connected AP is not acceptable.
This patch disables Beacon country IE hinting when a valid country code
is set from usersland (e.g., by system using iw or CRDA).
Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Tested-by: David Ruth <druth@chromium.org>
Link: https://patch.msgid.link/20240412085357.13756-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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The mt7925e takes a long time to resume in platform resume
scenarios. This is due to the mt7925 reconfiguring the tx
power for each wifi channel during resume. By streamlining
the process and removing redundant power configurations,
the resume time for the mt7925 can be shortened.
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Link: https://patch.msgid.link/f075d43d87a5eefa5869baf755e9986edf735860.1735910836.git.quan.zhou@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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When the system suspend or resume, the WiFi driver sends
an hif_ctrl command to the firmware and waits for an event.
Due to changes in the event format reported by the chip, the
current mt7925's driver does not account for these changes,
resulting in command timeout. Add flow to handle hif_ctrl
event to avoid command timeout. We also exented API
mt76_connac_mcu_set_hif_suspend for connac3 this time.
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Link: https://patch.msgid.link/3a0844ff5162142c4a9f3cf7104f75076ddd3b87.1735910562.git.quan.zhou@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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When enter suspend/resume while in a connected state, the upper layer
will trigger disconnection before entering suspend, and at the same time,
it will trigger regd_notifier() and update CLC, causing the CLC event to
not be received due to suspend, resulting in a command timeout.
Therefore, the update of CLC is postponed until resume, to ensure data
consistency and avoid the occurrence of command timeout.
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Link: https://patch.msgid.link/bab00a2805d0533fd8beaa059222659858a9dcb5.1735910455.git.quan.zhou@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Before entering suspend, we need to ensure that all MCU command are
completed. In some cases, such as with regd_notifier, there is a
chance that CLC commands, will be executed before suspend.
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Link: https://patch.msgid.link/3af7b4e5bf7437832b016e32743657d1d55b1f9d.1735910288.git.quan.zhou@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Bypass the entry when ofs is equal to dev->reg.map[i].size.
Without this patch, it would get incorrect register mapping when the CR
address is located at the boundary of an entry.
Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Link: https://patch.msgid.link/OSZPR01MB84344FEFF53004B5CF40BCC198132@OSZPR01MB8434.jpnprd01.prod.outlook.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Bypass the entry when ofs is equal to dev->reg.map[i].size.
Without this patch, it would get incorrect register mapping when the CR
address is located at the boundary of an entry.
Fixes: cd4c314a65d3 ("mt76: mt7915: refine register definition")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Link: https://patch.msgid.link/OSZPR01MB843401EAA1DA6BD7AEF356F298132@OSZPR01MB8434.jpnprd01.prod.outlook.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Enable sniffer mode via MCU command in order to properly enable promiscuous
mode on the device.
Link: https://patch.msgid.link/20250102163508.52945-24-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Use generic mt76 chanctx functions and look up phy from vif link.
The driver now uses only a single phy to handle multiple interfaces on
different channels. This is preparation for full MLO support.
Link: https://patch.msgid.link/20250102163508.52945-23-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Preparation for single-wiphy support
Link: https://patch.msgid.link/20250102163508.52945-22-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Rework connac helpers related to rate and phymode.
This is a preliminary patch to add MLO support for mt7996 chipsets.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20250102163508.52945-21-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Pass in struct mt76_vif_link in order to update the correct link.
Link: https://patch.msgid.link/20250102163508.52945-20-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Pass in struct ieee80211_bss_conf in order to use link specific data.
Link: https://patch.msgid.link/20250102163508.52945-19-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Pass in struct ieee80211_bss_conf in order to use link specific data.
Link: https://patch.msgid.link/20250102163508.52945-18-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Pass in struct ieee80211_bss_conf in order to use link specific data.
Link: https://patch.msgid.link/20250102163508.52945-17-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Pass in struct ieee80211_bss_conf.
Link: https://patch.msgid.link/20250102163508.52945-16-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Add extra arguments for struct ieee80211_bss_conf and mt76_vif_link.
Link: https://patch.msgid.link/20250102163508.52945-15-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Preparation for MLO support.
Link: https://patch.msgid.link/20250102163508.52945-14-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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