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drm/xe: Covert return of -EBUSY to -ENOMEM in VM bind IOCTL

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xe_vma_userptr_pin_pages can return -EBUSY but -EBUSY has special
meaning in VM bind IOCTLs that user fence is pending that is attached to
the VMA. Convert -EBUSY to -ENOMEM in this case as -EBUSY in practice
means we are low or out of memory.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://patch.msgid.link/20251122012502.382587-2-matthew.brost@intel.com
This commit is contained in:
Matthew Brost 2025-11-21 17:25:02 -08:00
parent 9fb1f1256e
commit 6028f59620
1 changed files with 10 additions and 1 deletions
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11
drivers/gpu/drm/xe/xe_vm.c
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@ -2455,8 +2455,17 @@ static struct xe_vma *new_vma(struct xe_vm *vm, struct drm_gpuva_op_map *op,
if (IS_ERR(vma))
return vma;
if (xe_vma_is_userptr(vma))
if (xe_vma_is_userptr(vma)) {
err = xe_vma_userptr_pin_pages(to_userptr_vma(vma));
/*
* -EBUSY has dedicated meaning that a user fence
* attached to the VMA is busy, in practice
* xe_vma_userptr_pin_pages can only fail with -EBUSY if
* we are low on memory so convert this to -ENOMEM.
*/
if (err == -EBUSY)
err = -ENOMEM;
}
}
if (err) {
prep_vma_destroy(vm, vma, false);