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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2020 Intel Corporation
*/
#ifndef __XE_MIGRATE__
#define __XE_MIGRATE__
#include <drm/drm_mm.h>
struct dma_fence;
struct iosys_map;
struct ttm_resource;
struct xe_bo;
struct xe_gt;
struct xe_engine;
struct xe_migrate;
struct xe_migrate_pt_update;
struct xe_sync_entry;
struct xe_pt;
struct xe_vm;
struct xe_vm_pgtable_update;
struct xe_vma;
struct xe_migrate_pt_update_ops {
/**
* populate() - Populate a command buffer or page-table with ptes.
* @pt_update: Embeddable callback argument.
* @gt: The gt for the current operation.
* @map: struct iosys_map into the memory to be populated.
* @pos: If @map is NULL, map into the memory to be populated.
* @ofs: qword offset into @map, unused if @map is NULL.
* @num_qwords: Number of qwords to write.
* @update: Information about the PTEs to be inserted.
*
* This interface is intended to be used as a callback into the
* page-table system to populate command buffers or shared
* page-tables with PTEs.
*/
void (*populate)(struct xe_migrate_pt_update *pt_update,
struct xe_gt *gt, struct iosys_map *map,
void *pos, u32 ofs, u32 num_qwords,
const struct xe_vm_pgtable_update *update);
/**
* pre_commit(): Callback to be called just before arming the
* sched_job.
* @pt_update: Pointer to embeddable callback argument.
*
* Return: 0 on success, negative error code on error.
*/
int (*pre_commit)(struct xe_migrate_pt_update *pt_update);
};
struct xe_migrate_pt_update {
const struct xe_migrate_pt_update_ops *ops;
struct xe_vma *vma;
};
struct xe_migrate *xe_migrate_init(struct xe_gt *gt);
struct dma_fence *xe_migrate_copy(struct xe_migrate *m,
struct xe_bo *bo,
struct ttm_resource *src,
struct ttm_resource *dst);
struct dma_fence *xe_migrate_clear(struct xe_migrate *m,
struct xe_bo *bo,
struct ttm_resource *dst,
u32 value);
struct xe_vm *xe_migrate_get_vm(struct xe_migrate *m);
struct dma_fence *
xe_migrate_update_pgtables(struct xe_migrate *m,
struct xe_vm *vm,
struct xe_bo *bo,
struct xe_engine *eng,
const struct xe_vm_pgtable_update *updates,
u32 num_updates,
struct xe_sync_entry *syncs, u32 num_syncs,
struct xe_migrate_pt_update *pt_update);
void xe_migrate_wait(struct xe_migrate *m);
struct xe_engine *xe_gt_migrate_engine(struct xe_gt *gt);
#endif
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