Function report |
Source Code:kernel\dma\debug.c |
Create Date:2022-07-28 10:34:29 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Request exclusive access to a hash bucket for a given dma_debug_entry.
Proto:static struct hash_bucket *get_hash_bucket(struct dma_debug_entry *entry, unsigned long *flags)__acquires(&dma_entry_hash[idx].lock)
Type:struct hash_bucket
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct dma_debug_entry * | entry | |
| unsigned long * | flags |
| 246 | idx = Hash related functions* Every DMA-API request is saved into a struct dma_debug_entry. To* have quick access to these structs they are stored into a hash. |
| 249 | spin_lock_irqsave( & lock, __flags) |
| 251 | Return Hash list to save the allocated dma addresses [idx] |
| Name | Describe |
|---|---|
| bucket_find_contain | |
| add_dma_entry | Wrapper function for adding an entry to the hash.* This function takes care of locking itself. |
| check_unmap | |
| check_sync | |
| debug_dma_mapping_error | |
| get_nr_mapped_entries |
| Source code conversion tool public plug-in interface | X |
|---|---|
| Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |