iommu/vt-d: Introduce batched cache invalidation

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Converts IOTLB and Dev-IOTLB invalidation to a batched model. Cache tag
invalidation requests for a domain are now accumulated in a qi_batch
structure before being flushed in bulk. It replaces the previous per-
request qi_flush approach with a more efficient batching mechanism.

Co-developed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Link: https://lore.kernel.org/r/20240815065221.50328-5-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Tina Zhang 2024-09-02 10:27:24 +08:00 • committed by Joerg Roedel

parent 777cdd8534

commit 705c1cdf1e

1 changed files with 107 additions and 15 deletions

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drivers/iommu/intel/cache.c

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