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authorMatthew Auld <[email protected]>2024-04-12 12:31:46 +0100
committerMatthew Auld <[email protected]>2024-04-17 13:38:32 +0100
commit5b259c0d1d3caa6efc66c2b856840e68993f814e (patch)
treee6d2a845eb28d356d817448034e2db9004ddd628
parent83967c57320d0d01ae512f10e79213f81e4bf594 (diff)
drm/xe/vm: drop vm->destroy_work
Now that we no longer grab the usm.lock mutex (which might sleep) it looks like it should be safe to directly perform xe_vm_free when vm refcount reaches zero, instead of punting that off to some worker. Signed-off-by: Matthew Auld <[email protected]> Cc: Matthew Brost <[email protected]> Reviewed-by: Matthew Brost <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
-rw-r--r--drivers/gpu/drm/xe/xe_vm.c17
-rw-r--r--drivers/gpu/drm/xe/xe_vm_types.h7
2 files changed, 2 insertions, 22 deletions
diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index b31e263ca754..5f24f7802c26 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -1179,8 +1179,6 @@ static const struct xe_pt_ops xelp_pt_ops = {
.pde_encode_bo = xelp_pde_encode_bo,
};
-static void vm_destroy_work_func(struct work_struct *w);
-
/**
* xe_vm_create_scratch() - Setup a scratch memory pagetable tree for the
* given tile and vm.
@@ -1260,8 +1258,6 @@ struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags)
init_rwsem(&vm->userptr.notifier_lock);
spin_lock_init(&vm->userptr.invalidated_lock);
- INIT_WORK(&vm->destroy_work, vm_destroy_work_func);
-
INIT_LIST_HEAD(&vm->preempt.exec_queues);
vm->preempt.min_run_period_ms = 10; /* FIXME: Wire up to uAPI */
@@ -1499,10 +1495,9 @@ void xe_vm_close_and_put(struct xe_vm *vm)
xe_vm_put(vm);
}
-static void vm_destroy_work_func(struct work_struct *w)
+static void xe_vm_free(struct drm_gpuvm *gpuvm)
{
- struct xe_vm *vm =
- container_of(w, struct xe_vm, destroy_work);
+ struct xe_vm *vm = container_of(gpuvm, struct xe_vm, gpuvm);
struct xe_device *xe = vm->xe;
struct xe_tile *tile;
u8 id;
@@ -1522,14 +1517,6 @@ static void vm_destroy_work_func(struct work_struct *w)
kfree(vm);
}
-static void xe_vm_free(struct drm_gpuvm *gpuvm)
-{
- struct xe_vm *vm = container_of(gpuvm, struct xe_vm, gpuvm);
-
- /* To destroy the VM we need to be able to sleep */
- queue_work(system_unbound_wq, &vm->destroy_work);
-}
-
struct xe_vm *xe_vm_lookup(struct xe_file *xef, u32 id)
{
struct xe_vm *vm;
diff --git a/drivers/gpu/drm/xe/xe_vm_types.h b/drivers/gpu/drm/xe/xe_vm_types.h
index badf3945083d..7570c2c6c463 100644
--- a/drivers/gpu/drm/xe/xe_vm_types.h
+++ b/drivers/gpu/drm/xe/xe_vm_types.h
@@ -178,13 +178,6 @@ struct xe_vm {
struct list_head rebind_list;
/**
- * @destroy_work: worker to destroy VM, needed as a dma_fence signaling
- * from an irq context can be last put and the destroy needs to be able
- * to sleep.
- */
- struct work_struct destroy_work;
-
- /**
* @rftree: range fence tree to track updates to page table structure.
* Used to implement conflict tracking between independent bind engines.
*/