From 6028f59620927aee2e15a424004012ae05c50684 Mon Sep 17 00:00:00 2001 From: Matthew Brost Date: Fri, 21 Nov 2025 17:25:02 -0800 Subject: [PATCH] drm/xe: Covert return of -EBUSY to -ENOMEM in VM bind IOCTL 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 Reviewed-by: Tejas Upadhyay Link: https://patch.msgid.link/20251122012502.382587-2-matthew.brost@intel.com --- drivers/gpu/drm/xe/xe_vm.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index a70a4a1fa03c..8ab726289583 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -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); -- 2.47.3