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ab498828fa
Add SVM range invalidation vfunc which invalidates PTEs. A new PT layer function which accepts a SVM range is added to support this. In addition, add the basic page fault handler which allocates a SVM range which is used by SVM range invalidation vfunc. v2: - Don't run invalidation if VM is closed - Cycle notifier lock in xe_svm_close - Drop xe_gt_tlb_invalidation_fence_fini v3: - Better commit message (Thomas) - Add lockdep asserts (Thomas) - Add kernel doc (Thomas) - s/change/changed (Thomas) - Use new GPU SVM range / notifier structures - Ensure PTEs are zapped / dma mappings are unmapped on VM close (Thomas) v4: - Fix macro (Checkpatch) v5: - Use range start/end helpers (Thomas) - Use notifier start/end helpers (Thomas) v6: - Use min/max helpers (Himal) - Only compile if CONFIG_DRM_GPUSVM selected (CI, Lucas) Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-13-matthew.brost@intel.com
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#ifndef _XE_PT_H_
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#define _XE_PT_H_
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#include <linux/types.h>
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#include "xe_pt_types.h"
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struct dma_fence;
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struct xe_bo;
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struct xe_device;
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struct xe_exec_queue;
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struct xe_svm_range;
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struct xe_sync_entry;
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struct xe_tile;
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struct xe_vm;
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struct xe_vma;
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struct xe_vma_ops;
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/* Largest huge pte is currently 1GiB. May become device dependent. */
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#define MAX_HUGEPTE_LEVEL 2
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#define xe_pt_write(xe, map, idx, data) \
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xe_map_wr(xe, map, (idx) * sizeof(u64), u64, data)
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unsigned int xe_pt_shift(unsigned int level);
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struct xe_pt *xe_pt_create(struct xe_vm *vm, struct xe_tile *tile,
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unsigned int level);
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void xe_pt_populate_empty(struct xe_tile *tile, struct xe_vm *vm,
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struct xe_pt *pt);
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void xe_pt_destroy(struct xe_pt *pt, u32 flags, struct llist_head *deferred);
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void xe_pt_clear(struct xe_device *xe, struct xe_pt *pt);
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int xe_pt_update_ops_prepare(struct xe_tile *tile, struct xe_vma_ops *vops);
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struct dma_fence *xe_pt_update_ops_run(struct xe_tile *tile,
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struct xe_vma_ops *vops);
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void xe_pt_update_ops_fini(struct xe_tile *tile, struct xe_vma_ops *vops);
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void xe_pt_update_ops_abort(struct xe_tile *tile, struct xe_vma_ops *vops);
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bool xe_pt_zap_ptes(struct xe_tile *tile, struct xe_vma *vma);
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bool xe_pt_zap_ptes_range(struct xe_tile *tile, struct xe_vm *vm,
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struct xe_svm_range *range);
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#endif
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