diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2026-01-06 13:34:43 -0800 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2026-01-07 09:27:58 -0800 |
| commit | 7c0c19c076ffe84b8bcd5f927eb47452837f2c99 (patch) | |
| tree | 4d7d4e1fd18d2b5aa1bb988bf04c040a9e90974d /drivers | |
| parent | 051114652b6b78c18720dbc6fef36ddb5e1da55b (diff) | |
drm/xe: Validate preferred system memory placement in xe_svm_range_validate
Ensure preferred system memory placement is checked in
xe_svm_range_validate when dpagemap is NULL. Without this check, a
prefetch to system memory may become a no-op because device memory is
considered a valid placement.
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Fixes: 238dbc9d9f4a ("drm/xe: Use the vma attibute drm_pagemap to select where to migrate")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patch.msgid.link/20260106213443.1866797-1-matthew.brost@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_svm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c index fa2ee2c08f31..213f0334518a 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -988,6 +988,8 @@ bool xe_svm_range_validate(struct xe_vm *vm, ret = (range->tile_present & ~range->tile_invalidated & tile_mask) == tile_mask; if (dpagemap) ret = ret && xe_svm_range_has_pagemap_locked(range, dpagemap); + else + ret = ret && !range->base.pages.dpagemap; xe_svm_notifier_unlock(vm); |