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e497957fee
Invalidate LMTT immediately after removing VF's LMTT page tables and clearing root PTE in the LMTT PD to avoid any invalid access by the hardware (and VF) due to stale data. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michał Winiarski <michal.winiarski@intel.com> Cc: Piotr Piórkowski <piotr.piorkowski@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250711193316.1920-6-michal.wajdeczko@intel.com
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#ifndef _XE_GT_TLB_INVALIDATION_H_
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#define _XE_GT_TLB_INVALIDATION_H_
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#include <linux/types.h>
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#include "xe_gt_tlb_invalidation_types.h"
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struct xe_gt;
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struct xe_guc;
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struct xe_vm;
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struct xe_vma;
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int xe_gt_tlb_invalidation_init_early(struct xe_gt *gt);
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void xe_gt_tlb_invalidation_reset(struct xe_gt *gt);
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int xe_gt_tlb_invalidation_ggtt(struct xe_gt *gt);
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void xe_gt_tlb_invalidation_vm(struct xe_gt *gt, struct xe_vm *vm);
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int xe_gt_tlb_invalidation_all(struct xe_gt *gt, struct xe_gt_tlb_invalidation_fence *fence);
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int xe_gt_tlb_invalidation_range(struct xe_gt *gt,
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struct xe_gt_tlb_invalidation_fence *fence,
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u64 start, u64 end, u32 asid);
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int xe_guc_tlb_invalidation_done_handler(struct xe_guc *guc, u32 *msg, u32 len);
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void xe_gt_tlb_invalidation_fence_init(struct xe_gt *gt,
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struct xe_gt_tlb_invalidation_fence *fence,
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bool stack);
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void xe_gt_tlb_invalidation_fence_signal(struct xe_gt_tlb_invalidation_fence *fence);
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static inline void
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xe_gt_tlb_invalidation_fence_wait(struct xe_gt_tlb_invalidation_fence *fence)
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{
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dma_fence_wait(&fence->base, false);
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}
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#endif /* _XE_GT_TLB_INVALIDATION_ */
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