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08dea76745
Migration primarily focuses on the memory associated with a tile, so it makes more sense to track this at the tile level (especially since the driver was already skipping migration operations on media GTs). Note that the blitter engine used to perform the migration always lives in the tile's primary GT today. In theory that could change if media GTs ever start including blitter engines in the future, but we can extend the design if/when that happens in the future. v2: - Fix kunit test build - Kerneldoc parameter name update v3: - Removed leftover prototype for removed function. (Gustavo) - Remove unrelated / unwanted error handling change. (Gustavo) Cc: Gustavo Sousa <gustavo.sousa@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Gustavo Sousa <gustavo.sousa@intel.com> Link: https://lore.kernel.org/r/20230601215244.678611-15-matthew.d.roper@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2020 Intel Corporation
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*/
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#ifndef _XE_MIGRATE_
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#define _XE_MIGRATE_
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#include <drm/drm_mm.h>
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struct dma_fence;
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struct iosys_map;
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struct ttm_resource;
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struct xe_bo;
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struct xe_gt;
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struct xe_engine;
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struct xe_migrate;
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struct xe_migrate_pt_update;
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struct xe_sync_entry;
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struct xe_pt;
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struct xe_tile;
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struct xe_vm;
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struct xe_vm_pgtable_update;
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struct xe_vma;
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/**
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* struct xe_migrate_pt_update_ops - Callbacks for the
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* xe_migrate_update_pgtables() function.
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*/
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struct xe_migrate_pt_update_ops {
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/**
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* @populate: Populate a command buffer or page-table with ptes.
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* @pt_update: Embeddable callback argument.
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* @tile: The tile for the current operation.
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* @map: struct iosys_map into the memory to be populated.
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* @pos: If @map is NULL, map into the memory to be populated.
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* @ofs: qword offset into @map, unused if @map is NULL.
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* @num_qwords: Number of qwords to write.
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* @update: Information about the PTEs to be inserted.
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*
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* This interface is intended to be used as a callback into the
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* page-table system to populate command buffers or shared
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* page-tables with PTEs.
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*/
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void (*populate)(struct xe_migrate_pt_update *pt_update,
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struct xe_tile *tile, struct iosys_map *map,
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void *pos, u32 ofs, u32 num_qwords,
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const struct xe_vm_pgtable_update *update);
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/**
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* @pre_commit: Callback to be called just before arming the
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* sched_job.
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* @pt_update: Pointer to embeddable callback argument.
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*
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* Return: 0 on success, negative error code on error.
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*/
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int (*pre_commit)(struct xe_migrate_pt_update *pt_update);
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};
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/**
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* struct xe_migrate_pt_update - Argument to the
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* struct xe_migrate_pt_update_ops callbacks.
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*
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* Intended to be subclassed to support additional arguments if necessary.
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*/
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struct xe_migrate_pt_update {
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/** @ops: Pointer to the struct xe_migrate_pt_update_ops callbacks */
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const struct xe_migrate_pt_update_ops *ops;
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/** @vma: The vma we're updating the pagetable for. */
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struct xe_vma *vma;
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};
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struct xe_migrate *xe_migrate_init(struct xe_tile *tile);
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struct dma_fence *xe_migrate_copy(struct xe_migrate *m,
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struct xe_bo *src_bo,
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struct xe_bo *dst_bo,
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struct ttm_resource *src,
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struct ttm_resource *dst);
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struct dma_fence *xe_migrate_clear(struct xe_migrate *m,
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struct xe_bo *bo,
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struct ttm_resource *dst);
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struct xe_vm *xe_migrate_get_vm(struct xe_migrate *m);
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struct dma_fence *
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xe_migrate_update_pgtables(struct xe_migrate *m,
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struct xe_vm *vm,
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struct xe_bo *bo,
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struct xe_engine *eng,
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const struct xe_vm_pgtable_update *updates,
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u32 num_updates,
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struct xe_sync_entry *syncs, u32 num_syncs,
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struct xe_migrate_pt_update *pt_update);
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void xe_migrate_wait(struct xe_migrate *m);
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struct xe_engine *xe_tile_migrate_engine(struct xe_tile *tile);
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#endif
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