Felix Kuehling d760895d55 drm/amdgpu: Use spinlock_irqsave for pasid_lock
This should fix a kernel LOCKDEP warning on Vega10:
[  149.416604] ================================
[  149.420877] WARNING: inconsistent lock state
[  149.425152] 5.11.0-kfd-fkuehlin #517 Not tainted
[  149.429770] --------------------------------
[  149.434053] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
[  149.440059] swapper/3/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
[  149.445198] ffff9ac80e005d68 (&adev->vm_manager.pasid_lock){?.+.}-{2:2}, at: amdgpu_vm_get_task_info+0x25/0x90 [amdgpu]
[  149.456252] {HARDIRQ-ON-W} state was registered at:
[  149.461136]   lock_acquire+0x242/0x390
[  149.464895]   _raw_spin_lock+0x2c/0x40
[  149.468647]   amdgpu_vm_handle_fault+0x44/0x380 [amdgpu]
[  149.474187]   gmc_v9_0_process_interrupt+0xa8/0x410 [amdgpu]
...

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-06-15 17:25:42 -04:00
2021-05-23 11:42:48 -10:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
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Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
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    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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