#include <drm_gpuvm.h>
Public Attributes | |
| void(* | vm_free )(struct drm_gpuvm *gpuvm) |
| struct drm_gpuva_op *(* | op_alloc )(void) |
| void(* | op_free )(struct drm_gpuva_op *op) |
| struct drm_gpuvm_bo *(* | vm_bo_alloc )(void) |
| void(* | vm_bo_free )(struct drm_gpuvm_bo *vm_bo) |
| int(* | vm_bo_validate )(struct drm_gpuvm_bo *vm_bo, struct drm_exec *exec) |
| int(* | sm_step_map )(struct drm_gpuva_op *op, void *priv) |
| int(* | sm_step_remap )(struct drm_gpuva_op *op, void *priv) |
| int(* | sm_step_unmap )(struct drm_gpuva_op *op, void *priv) |
Detailed Description
struct drm_gpuvm_ops - callbacks for split/merge steps
This structure defines the callbacks used by &drm_gpuvm_sm_map and &drm_gpuvm_sm_unmap to provide the split/merge steps for map and unmap operations to drivers.
Member Data Documentation
◆ op_alloc
| struct drm_gpuva_op *(* drm_gpuvm_ops::op_alloc) (void) |
@op_alloc: called when the &drm_gpuvm allocates a struct drm_gpuva_op
Some drivers may want to embed struct drm_gpuva_op into driver specific structures. By implementing this callback drivers can allocate memory accordingly.
This callback is optional.
◆ op_free
| void(* drm_gpuvm_ops::op_free) (struct drm_gpuva_op *op) |
@op_free: called when the &drm_gpuvm frees a struct drm_gpuva_op
Some drivers may want to embed struct drm_gpuva_op into driver specific structures. By implementing this callback drivers can free the previously allocated memory accordingly.
This callback is optional.
◆ sm_step_map
| int(* drm_gpuvm_ops::sm_step_map) (struct drm_gpuva_op *op, void *priv) |
@sm_step_map: called from &drm_gpuvm_sm_map to finally insert the mapping once all previous steps were completed
The &priv pointer matches the one the driver passed to &drm_gpuvm_sm_map or &drm_gpuvm_sm_unmap, respectively.
Can be NULL if &drm_gpuvm_sm_map is used.
◆ sm_step_remap
| int(* drm_gpuvm_ops::sm_step_remap) (struct drm_gpuva_op *op, void *priv) |
@sm_step_remap: called from &drm_gpuvm_sm_map and &drm_gpuvm_sm_unmap to split up an existent mapping
This callback is called when existent mapping needs to be split up. This is the case when either a newly requested mapping overlaps or is enclosed by an existent mapping or a partial unmap of an existent mapping is requested.
The &priv pointer matches the one the driver passed to &drm_gpuvm_sm_map or &drm_gpuvm_sm_unmap, respectively.
Can be NULL if neither &drm_gpuvm_sm_map nor &drm_gpuvm_sm_unmap is used.
◆ sm_step_unmap
| int(* drm_gpuvm_ops::sm_step_unmap) (struct drm_gpuva_op *op, void *priv) |
@sm_step_unmap: called from &drm_gpuvm_sm_map and &drm_gpuvm_sm_unmap to unmap an existing mapping
This callback is called when existing mapping needs to be unmapped. This is the case when either a newly requested mapping encloses an existing mapping or an unmap of an existing mapping is requested.
The &priv pointer matches the one the driver passed to &drm_gpuvm_sm_map or &drm_gpuvm_sm_unmap, respectively.
Can be NULL if neither &drm_gpuvm_sm_map nor &drm_gpuvm_sm_unmap is used.
◆ vm_bo_alloc
| struct drm_gpuvm_bo *(* drm_gpuvm_ops::vm_bo_alloc) (void) |
@vm_bo_alloc: called when the &drm_gpuvm allocates a struct drm_gpuvm_bo
Some drivers may want to embed struct drm_gpuvm_bo into driver specific structures. By implementing this callback drivers can allocate memory accordingly.
This callback is optional.
◆ vm_bo_free
| void(* drm_gpuvm_ops::vm_bo_free) (struct drm_gpuvm_bo *vm_bo) |
@vm_bo_free: called when the &drm_gpuvm frees a struct drm_gpuvm_bo
Some drivers may want to embed struct drm_gpuvm_bo into driver specific structures. By implementing this callback drivers can free the previously allocated memory accordingly.
This callback is optional.
◆ vm_bo_validate
| int(* drm_gpuvm_ops::vm_bo_validate) (struct drm_gpuvm_bo *vm_bo, struct drm_exec *exec) |
@vm_bo_validate: called from drm_gpuvm_validate()
Drivers receive this callback for every evicted &drm_gem_object being mapped in the corresponding &drm_gpuvm.
Typically, drivers would call their driver specific variant of ttm_bo_validate() from within this callback.
◆ vm_free
| void(* drm_gpuvm_ops::vm_free) (struct drm_gpuvm *gpuvm) |
@vm_free: called when the last reference of a struct drm_gpuvm is dropped
This callback is mandatory.
The documentation for this struct was generated from the following file:
- XenevaOS/BaseHdr/drm/drm_gpuvm.h
