diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2024-09-17 22:44:36 -0700 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2024-09-18 08:46:24 -0700 |
| commit | 1378c633a3fbfeb344c486ffda0e920a21e62712 (patch) | |
| tree | 890c9af02a398006b5802740e6d6583b277e9bb9 /drivers/gpu/drm/xe/xe_device.c | |
| parent | 17d32430361898932678fc6d77e448f260c8a3a8 (diff) | |
| download | lwn-1378c633a3fbfeb344c486ffda0e920a21e62712.tar.gz lwn-1378c633a3fbfeb344c486ffda0e920a21e62712.zip | |
drm/xe: Convert to USM lock to rwsem
Remove contention from GPU fault path for ASID->VM lookup.
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240918054436.1971839-1-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/xe/xe_device.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_device.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c index 4d3c794f134c..38eade07a004 100644 --- a/drivers/gpu/drm/xe/xe_device.c +++ b/drivers/gpu/drm/xe/xe_device.c @@ -335,9 +335,7 @@ struct xe_device *xe_device_create(struct pci_dev *pdev, init_waitqueue_head(&xe->ufence_wq); - err = drmm_mutex_init(&xe->drm, &xe->usm.lock); - if (err) - goto err; + init_rwsem(&xe->usm.lock); xa_init_flags(&xe->usm.asid_to_vm, XA_FLAGS_ALLOC); |