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| author | Ranjan Kumar <[email protected]> | 2025-06-27 19:45:38 +0000 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2025-07-15 00:53:17 +0000 |
| commit | c91e140c82eb58724c435f623702e51cc7896646 (patch) | |
| tree | 97444ef699fbac5af426e16da39ab4b7a8da92bd /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | scsi: mpi3mr: Drop unnecessary volatile from __iomem pointers (diff) | |
| download | kernel-c91e140c82eb58724c435f623702e51cc7896646.tar.gz kernel-c91e140c82eb58724c435f623702e51cc7896646.zip | |
scsi: mpi3mr: Serialize admin queue BAR writes on 32-bit systems
On 32-bit systems, 64-bit BAR writes to admin queue registers are
performed as two 32-bit writes. Without locking, this can cause partial
writes when accessed concurrently.
Updated per-queue spinlocks is used to serialize these writes and prevent
race conditions.
Fixes: 824a156633df ("scsi: mpi3mr: Base driver code")
Cc: [email protected]
Signed-off-by: Ranjan Kumar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
0 files changed, 0 insertions, 0 deletions