Documented in 1 files:
Defined in 1 files as a prototype:
Defined in 2 files as a function:
- include/linux/dma-map-ops.h, line 143 (as a function)
- kernel/dma/contiguous.c, line 455 (as a function)
Referenced in 3 files:
Smatch caller information:
kernel/dma/ops_helpers.c dma_common_alloc_pages() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->coherent_dma_mask | 1-u64max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem->can_grow | 0-1 |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->iommu_group->default_domain | 0-s64max |
| PARAM_VALUE | 1 | page | 1-u64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| BUF_SIZE | 1 | page | 0,4096-u64max |
| BUF_SIZE | 1 | page | 0,4096-u64max |
| CAPPED_DATA | 0 | dev->cma_area->nranges | 1 |
| CAPPED_DATA | 2 | size | 1 |
| CAPPED_DATA | 2 | size | 1 |
| DATA_SOURCE | 0 | dev | $0 |
| DATA_SOURCE | 2 | size | $1 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 2 | size | 0,4096-12884905984[c] |
| USER_DATA | 2 | size | 0,4096-4294967296[c] |
| NO_OVERFLOW_SIMPLE | 0 | dev->cma_area->available_count | |
| UNITS | 0 | dev | unit_byte |
| UNITS | 2 | size | unit_byte |
| BYTE_COUNT | 1 | ==page2 | 8050 |
kernel/dma/ops_helpers.c dma_common_free_pages() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->available_count | 0-s64max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->iommu_group->default_domain | 0-s64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| BUF_SIZE | 0 | dev | (-1),1616 |
| BUF_SIZE | 0 | dev | (-1),1616 |
| CAPPED_DATA | 2 | size | 1 |
| CAPPED_DATA | 2 | size | 1 |
| DATA_SOURCE | 0 | dev | $0 |
| DATA_SOURCE | 1 | page | $2 |
| DATA_SOURCE | 2 | size | $1 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 2 | size | 0,4096-u64max[c] |
| USER_DATA | 2 | size | 0,4096-4294967296[c] |
| NO_OVERFLOW_SIMPLE | 0 | dev->cma_area->available_count | |
| UNITS | 0 | dev | unit_byte |
| UNITS | 2 | size | unit_byte |
drivers/iommu/dma-iommu.c __iommu_dma_free() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->iommu_group | 4096-ptr_max |
| PARAM_VALUE | 1 | page | 1-u64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| CAPPED_DATA | 0 | dev | 1 |
| DATA_SOURCE | 0 | dev | $0 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| NOCHECK_CALL | |||
| UNITS | 2 | size | unit_byte |
drivers/iommu/dma-iommu.c iommu_dma_alloc_pages() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->dma_mem | 0 |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 1 | page | 1-u64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| BUF_SIZE | 1 | page | 0,4096-u64max |
| BUF_SIZE | 1 | page | 0,4096-u64max |
| DATA_SOURCE | 0 | dev | $0 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| NOCHECK_CALL |
kernel/dma/direct.c __dma_direct_alloc_pages() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area | 0,4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.dep_map->name | 0-255 |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.first_waiter->list.prev->next | 5159360019465732096 |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.first_waiter->list.prev->prev | 5159360019465732096 |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.osq.tail.counter | 0-s32max |
| PARAM_VALUE | 0 | dev->cma_area->lock.rlock.dep_map->name | 0-255 |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem->for_alloc | 0 |
| PARAM_VALUE | 0 | dev->dma_range_map | 0,4096-ptr_max |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 1 | page | 1-u64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| BUF_SIZE | 1 | page | 0,4096-u64max |
| BUF_SIZE | 1 | page | 0,4096-u64max |
| CAPPED_DATA | 0 | dev->cma_area->nranges | 1 |
| DATA_SOURCE | 0 | dev | $0 |
| DATA_SOURCE | 1 | page | r dma_alloc_contiguous |
| DATA_SOURCE | 2 | size | $1 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 2 | size | 0,4096-12884905984[c] |
| USER_DATA | 2 | size | 0,4096-4294967296[c] |
| NO_OVERFLOW_SIMPLE | 0 | dev->cma_area->available_count | |
| UNITS | 0 | dev | unit_byte |
| UNITS | 2 | size | unit_byte |
| BYTE_COUNT | 1 | ==page2 | 8050 |
kernel/dma/direct.c dma_direct_alloc() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.dep_map->name | 0-255 |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.first_waiter->list.prev->next | 5159360019465732096 |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.first_waiter->list.prev->prev | 5159360019465732096 |
| PARAM_VALUE | 0 | dev->cma_area->alloc_mutex.osq.tail.counter | 0-s32max |
| PARAM_VALUE | 0 | dev->cma_area->lock.rlock.dep_map->name | 0-255 |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->dma_mem | 0 |
| PARAM_VALUE | 0 | dev->dma_range_map | 0,4096-ptr_max |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 1 | page | 1-u64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| BUF_SIZE | 1 | page | s32min-s32max |
| DATA_SOURCE | 0 | dev | $0 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| NOCHECK_CALL |
kernel/dma/direct.c dma_direct_free() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem->for_alloc | 0 |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 1 | page | 1-u64max |
| DATA_SOURCE | 0 | dev | $0 |
| DATA_SOURCE | 1 | page | $2 |
| DATA_SOURCE | 2 | size | $1 |
| NOCHECK_CALL |
kernel/dma/direct.c dma_direct_free() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->dma_range_map | 0,4096-ptr_max |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| DATA_SOURCE | 0 | dev | $0 |
| DATA_SOURCE | 2 | size | $1 |
| NOCHECK_CALL |
kernel/dma/direct.c dma_direct_free_pages() -> dma_free_contiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->cma_area->available_count | 0-s64max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->flags | 4096-ptr_max |
| PARAM_VALUE | 0 | dev->iommu_group->default_domain | 0-s64max |
| PARAM_VALUE | 2 | size | 0,4096-u64max |
| BUF_SIZE | 0 | dev | (-1),1616 |
| BUF_SIZE | 0 | dev | (-1),1616 |
| DATA_SOURCE | 0 | dev | $0 |
| DATA_SOURCE | 1 | page | $2 |
| DATA_SOURCE | 2 | size | $1 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| BIT_INFO | 2 | size | 0x0,0xfffffffffffff000 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 2 | size | 0,4096-u64max[c] |
| USER_DATA | 2 | size | 0,4096-4294967296[c] |
| NO_OVERFLOW_SIMPLE | 0 | dev->cma_area->available_count | |
| UNITS | 0 | dev | unit_byte |
| UNITS | 2 | size | unit_byte |