drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 -- 2 files changed, 2 insertions(+), 2 deletions(-)
If there is an early failure during amdgpu probe, like missing firmware, it
will end up calling amdgpu_irq_disable_all, which takes irq.lock spinlock
without it being initialized.
Initializing irq.lock earlier at amdgpu_device_init fixes the issue.
[ 79.334079] INFO: trying to register non-static key.
[ 79.334081] The code is fine but needs lockdep annotation, or maybe
[ 79.334083] you didn't initialize this object before use?
[ 79.334084] turning off the locking correctness validator.
[ 79.334088] CPU: 2 UID: 0 PID: 1819 Comm: bash Not tainted 7.1.0-rc5-gfd06300b2348 #96 PREEMPT 8e8f461221633dae3c832d6689eaf0546c0ed4cd
[ 79.334092] Hardware name: Valve Jupiter/Jupiter, BIOS F7A0133 08/05/2024
[ 79.334094] Call Trace:
[ 79.334095] <TASK>
[ 79.334097] dump_stack_lvl+0x5d/0x80
[ 79.334103] register_lock_class+0x7af/0x7c0
[ 79.334109] __lock_acquire+0x416/0x2610
[ 79.334114] lock_acquire+0xcf/0x310
[ 79.334117] ? amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
[ 79.334503] ? _raw_spin_lock_irqsave+0x53/0x60
[ 79.334508] _raw_spin_lock_irqsave+0x3f/0x60
[ 79.334510] ? amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
[ 79.334881] amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
[ 79.335240] amdgpu_device_fini_hw+0x90/0x32c [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
[ 79.335704] amdgpu_driver_load_kms.cold+0x22/0x44 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
[ 79.336159] amdgpu_pci_probe+0x204/0x440 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
[ 79.336494] local_pci_probe+0x3c/0x80
[ 79.336500] pci_call_probe+0x55/0x2e0
[ 79.336505] ? _raw_spin_unlock+0x2d/0x50
[ 79.336508] ? pci_match_device+0x157/0x180
[ 79.336512] pci_device_probe+0x9b/0x170
[ 79.336516] really_probe+0xd5/0x370
[ 79.336521] __driver_probe_device+0x84/0x150
[ 79.336525] device_driver_attach+0x47/0xb0
[ 79.336528] bind_store+0x73/0xc0
[ 79.336531] kernfs_fop_write_iter+0x176/0x250
[ 79.336536] vfs_write+0x24d/0x560
[ 79.336542] ksys_write+0x71/0xe0
[ 79.336546] do_syscall_64+0x122/0x710
[ 79.336550] ? do_syscall_64+0xd1/0x710
[ 79.336553] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 79.336557] RIP: 0033:0x7f92fd675006
[ 79.336561] Code: 5d e8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 75 19 83 e2 39 83 fa 08 75 11 e8 26 ff ff ff 66 0f 1f 44 00 00 48 8b 45 10 0f 05 <48> 8b 5d f8 c9 c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 e5 48 83 ec 08
[ 79.336562] RSP: 002b:00007ffe4fa867a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 79.336565] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f92fd675006
[ 79.336567] RDX: 000000000000000d RSI: 000055b2dfce59b0 RDI: 0000000000000001
[ 79.336568] RBP: 00007ffe4fa867c0 R08: 0000000000000000 R09: 0000000000000000
[ 79.336569] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000d
[ 79.336570] R13: 000055b2dfce59b0 R14: 00007f92fd7ca5c0 R15: 000055b2dfdbaf70
[ 79.336574] </TASK>
Fixes: 9950cda2a018 ("drm/amdgpu: drop the drm irq pre/post/un install callbacks")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 21a3fb574d53..e5a9f6325c4a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3749,6 +3749,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
mutex_init(&adev->gfx.workload_profile_mutex);
mutex_init(&adev->vcn.workload_profile_mutex);
+ spin_lock_init(&adev->irq.lock);
+
amdgpu_device_init_apu_flags(adev);
r = amdgpu_device_check_arguments(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 254a4e983f40..40b8506ac66f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -309,8 +309,6 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
unsigned int irq, flags;
int r;
- spin_lock_init(&adev->irq.lock);
-
/* Enable MSI if not disabled by module parameter */
adev->irq.msi_enabled = false;
---
base-commit: 60dc0946bbad3eef8bc66a5a8b09b98dbc6e09c0
change-id: 20260608-amdgpu-mutex-fix-2-381a3bed81f0
Best regards,
--
Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
On 08/06/2026 20:22, Thadeu Lima de Souza Cascardo wrote:
> If there is an early failure during amdgpu probe, like missing firmware, it
> will end up calling amdgpu_irq_disable_all, which takes irq.lock spinlock
> without it being initialized.
>
> Initializing irq.lock earlier at amdgpu_device_init fixes the issue.
>
> [ 79.334079] INFO: trying to register non-static key.
> [ 79.334081] The code is fine but needs lockdep annotation, or maybe
> [ 79.334083] you didn't initialize this object before use?
> [ 79.334084] turning off the locking correctness validator.
> [ 79.334088] CPU: 2 UID: 0 PID: 1819 Comm: bash Not tainted 7.1.0-rc5-gfd06300b2348 #96 PREEMPT 8e8f461221633dae3c832d6689eaf0546c0ed4cd
> [ 79.334092] Hardware name: Valve Jupiter/Jupiter, BIOS F7A0133 08/05/2024
> [ 79.334094] Call Trace:
> [ 79.334095] <TASK>
> [ 79.334097] dump_stack_lvl+0x5d/0x80
> [ 79.334103] register_lock_class+0x7af/0x7c0
> [ 79.334109] __lock_acquire+0x416/0x2610
> [ 79.334114] lock_acquire+0xcf/0x310
> [ 79.334117] ? amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> [ 79.334503] ? _raw_spin_lock_irqsave+0x53/0x60
> [ 79.334508] _raw_spin_lock_irqsave+0x3f/0x60
> [ 79.334510] ? amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> [ 79.334881] amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> [ 79.335240] amdgpu_device_fini_hw+0x90/0x32c [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> [ 79.335704] amdgpu_driver_load_kms.cold+0x22/0x44 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> [ 79.336159] amdgpu_pci_probe+0x204/0x440 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> [ 79.336494] local_pci_probe+0x3c/0x80
> [ 79.336500] pci_call_probe+0x55/0x2e0
> [ 79.336505] ? _raw_spin_unlock+0x2d/0x50
> [ 79.336508] ? pci_match_device+0x157/0x180
> [ 79.336512] pci_device_probe+0x9b/0x170
> [ 79.336516] really_probe+0xd5/0x370
> [ 79.336521] __driver_probe_device+0x84/0x150
> [ 79.336525] device_driver_attach+0x47/0xb0
> [ 79.336528] bind_store+0x73/0xc0
> [ 79.336531] kernfs_fop_write_iter+0x176/0x250
> [ 79.336536] vfs_write+0x24d/0x560
> [ 79.336542] ksys_write+0x71/0xe0
> [ 79.336546] do_syscall_64+0x122/0x710
> [ 79.336550] ? do_syscall_64+0xd1/0x710
> [ 79.336553] entry_SYSCALL_64_after_hwframe+0x4b/0x53
> [ 79.336557] RIP: 0033:0x7f92fd675006
> [ 79.336561] Code: 5d e8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 75 19 83 e2 39 83 fa 08 75 11 e8 26 ff ff ff 66 0f 1f 44 00 00 48 8b 45 10 0f 05 <48> 8b 5d f8 c9 c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 e5 48 83 ec 08
> [ 79.336562] RSP: 002b:00007ffe4fa867a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> [ 79.336565] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f92fd675006
> [ 79.336567] RDX: 000000000000000d RSI: 000055b2dfce59b0 RDI: 0000000000000001
> [ 79.336568] RBP: 00007ffe4fa867c0 R08: 0000000000000000 R09: 0000000000000000
> [ 79.336569] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000d
> [ 79.336570] R13: 000055b2dfce59b0 R14: 00007f92fd7ca5c0 R15: 000055b2dfdbaf70
> [ 79.336574] </TASK>
>
> Fixes: 9950cda2a018 ("drm/amdgpu: drop the drm irq pre/post/un install callbacks")
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 --
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 21a3fb574d53..e5a9f6325c4a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -3749,6 +3749,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
> mutex_init(&adev->gfx.workload_profile_mutex);
> mutex_init(&adev->vcn.workload_profile_mutex);
>
> + spin_lock_init(&adev->irq.lock);
The fix and the Fixes: target look correct to me:
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
The init paths are a bit of a mess though. The driver could use a
systematic cleanup in this area path. Maybe consistent
init/init_hw/init_early for purely software state, or something. It
would be a gargantuan task probably. Some years ago we strived for a
clean design along these lines in i915 and I think without a solid
continuos integration with fault injection it possibly shouldn't be even
attempted.
Regards,
Tvrtko
> +
> amdgpu_device_init_apu_flags(adev);
>
> r = amdgpu_device_check_arguments(adev);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> index 254a4e983f40..40b8506ac66f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> @@ -309,8 +309,6 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
> unsigned int irq, flags;
> int r;
>
> - spin_lock_init(&adev->irq.lock);
> -
> /* Enable MSI if not disabled by module parameter */
> adev->irq.msi_enabled = false;
>
>
> ---
> base-commit: 60dc0946bbad3eef8bc66a5a8b09b98dbc6e09c0
> change-id: 20260608-amdgpu-mutex-fix-2-381a3bed81f0
>
> Best regards,
> --
> Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
>
Applied. Thanks!
On Tue, Jun 9, 2026 at 4:07 AM Tvrtko Ursulin <tvrtko.ursulin@igalia.com> wrote:
>
>
> On 08/06/2026 20:22, Thadeu Lima de Souza Cascardo wrote:
> > If there is an early failure during amdgpu probe, like missing firmware, it
> > will end up calling amdgpu_irq_disable_all, which takes irq.lock spinlock
> > without it being initialized.
> >
> > Initializing irq.lock earlier at amdgpu_device_init fixes the issue.
> >
> > [ 79.334079] INFO: trying to register non-static key.
> > [ 79.334081] The code is fine but needs lockdep annotation, or maybe
> > [ 79.334083] you didn't initialize this object before use?
> > [ 79.334084] turning off the locking correctness validator.
> > [ 79.334088] CPU: 2 UID: 0 PID: 1819 Comm: bash Not tainted 7.1.0-rc5-gfd06300b2348 #96 PREEMPT 8e8f461221633dae3c832d6689eaf0546c0ed4cd
> > [ 79.334092] Hardware name: Valve Jupiter/Jupiter, BIOS F7A0133 08/05/2024
> > [ 79.334094] Call Trace:
> > [ 79.334095] <TASK>
> > [ 79.334097] dump_stack_lvl+0x5d/0x80
> > [ 79.334103] register_lock_class+0x7af/0x7c0
> > [ 79.334109] __lock_acquire+0x416/0x2610
> > [ 79.334114] lock_acquire+0xcf/0x310
> > [ 79.334117] ? amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> > [ 79.334503] ? _raw_spin_lock_irqsave+0x53/0x60
> > [ 79.334508] _raw_spin_lock_irqsave+0x3f/0x60
> > [ 79.334510] ? amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> > [ 79.334881] amdgpu_irq_disable_all+0x3b/0xf0 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> > [ 79.335240] amdgpu_device_fini_hw+0x90/0x32c [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> > [ 79.335704] amdgpu_driver_load_kms.cold+0x22/0x44 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> > [ 79.336159] amdgpu_pci_probe+0x204/0x440 [amdgpu c88bab43d391d519ad0d5c8e5a099b4aceefa180]
> > [ 79.336494] local_pci_probe+0x3c/0x80
> > [ 79.336500] pci_call_probe+0x55/0x2e0
> > [ 79.336505] ? _raw_spin_unlock+0x2d/0x50
> > [ 79.336508] ? pci_match_device+0x157/0x180
> > [ 79.336512] pci_device_probe+0x9b/0x170
> > [ 79.336516] really_probe+0xd5/0x370
> > [ 79.336521] __driver_probe_device+0x84/0x150
> > [ 79.336525] device_driver_attach+0x47/0xb0
> > [ 79.336528] bind_store+0x73/0xc0
> > [ 79.336531] kernfs_fop_write_iter+0x176/0x250
> > [ 79.336536] vfs_write+0x24d/0x560
> > [ 79.336542] ksys_write+0x71/0xe0
> > [ 79.336546] do_syscall_64+0x122/0x710
> > [ 79.336550] ? do_syscall_64+0xd1/0x710
> > [ 79.336553] entry_SYSCALL_64_after_hwframe+0x4b/0x53
> > [ 79.336557] RIP: 0033:0x7f92fd675006
> > [ 79.336561] Code: 5d e8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 75 19 83 e2 39 83 fa 08 75 11 e8 26 ff ff ff 66 0f 1f 44 00 00 48 8b 45 10 0f 05 <48> 8b 5d f8 c9 c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 e5 48 83 ec 08
> > [ 79.336562] RSP: 002b:00007ffe4fa867a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > [ 79.336565] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f92fd675006
> > [ 79.336567] RDX: 000000000000000d RSI: 000055b2dfce59b0 RDI: 0000000000000001
> > [ 79.336568] RBP: 00007ffe4fa867c0 R08: 0000000000000000 R09: 0000000000000000
> > [ 79.336569] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000d
> > [ 79.336570] R13: 000055b2dfce59b0 R14: 00007f92fd7ca5c0 R15: 000055b2dfdbaf70
> > [ 79.336574] </TASK>
> >
> > Fixes: 9950cda2a018 ("drm/amdgpu: drop the drm irq pre/post/un install callbacks")
> > Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++
> > drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 2 --
> > 2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > index 21a3fb574d53..e5a9f6325c4a 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > @@ -3749,6 +3749,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
> > mutex_init(&adev->gfx.workload_profile_mutex);
> > mutex_init(&adev->vcn.workload_profile_mutex);
> >
> > + spin_lock_init(&adev->irq.lock);
>
> The fix and the Fixes: target look correct to me:
>
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
>
> The init paths are a bit of a mess though. The driver could use a
> systematic cleanup in this area path. Maybe consistent
> init/init_hw/init_early for purely software state, or something. It
> would be a gargantuan task probably. Some years ago we strived for a
> clean design along these lines in i915 and I think without a solid
> continuos integration with fault injection it possibly shouldn't be even
> attempted.
>
> Regards,
>
> Tvrtko
>
> > +
> > amdgpu_device_init_apu_flags(adev);
> >
> > r = amdgpu_device_check_arguments(adev);
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> > index 254a4e983f40..40b8506ac66f 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> > @@ -309,8 +309,6 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
> > unsigned int irq, flags;
> > int r;
> >
> > - spin_lock_init(&adev->irq.lock);
> > -
> > /* Enable MSI if not disabled by module parameter */
> > adev->irq.msi_enabled = false;
> >
> >
> > ---
> > base-commit: 60dc0946bbad3eef8bc66a5a8b09b98dbc6e09c0
> > change-id: 20260608-amdgpu-mutex-fix-2-381a3bed81f0
> >
> > Best regards,
> > --
> > Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
> >
>
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