Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\swiotlb.c Create Date:2022-07-28 10:35:53
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:swiotlb_print_info

Proto:void swiotlb_print_info(void)

Type:void

Parameter:Nothing

167  bytes = The number of IO TLB blocks (in groups of 64) between io_tlb_start and* io_tlb_end. This is command line adjustable via setup_io_tlb_npages. << log of the size of each IO TLB slab. The number of slabs is command line* controllable.
169  If no_iotlb_memory Then
170  pr_warn("No low mem\n")
171  Return
174  pr_info("mapped [mem %#010llx-%#010llx] (%luMB)\n", (unsignedlonglong)Used to do a quick range check in swiotlb_tbl_unmap_single and* swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this* API., (unsignedlonglong)Used to do a quick range check in swiotlb_tbl_unmap_single and* swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this* API., bytes >> 20)
Caller
NameDescribe
swiotlb_init_with_tbl
swiotlb_late_init_with_tbl