Defined in 1 files as a prototype:
Defined in 2 files as a function:
- include/linux/dma-mapping.h, line 337 (as a function)
- kernel/dma/mapping.c, line 817 (as a function)
Referenced in 5 files:
- drivers/media/common/videobuf2/videobuf2-dma-contig.c, line 214
- drivers/nvme/host/pci.c, line 2584
- drivers/usb/core/usb.c, line 1071
- kernel/dma/mapping.c, line 841
- sound/core/memalloc.c, line 562
Smatch caller information:
sound/core/memalloc.c snd_dma_noncontig_alloc() -> dma_alloc_noncontiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev->cma_area->available_count | 0-s64max |
| PARAM_VALUE | 0 | dev->cma_area->nranges | s32min-s32max |
| PARAM_VALUE | 0 | dev->dma_io_tlb_mem->for_alloc | 0-1 |
| PARAM_VALUE | 3 | gfp | 27840 |
| PARAM_VALUE | 4 | attrs | 0 |
| DATA_SOURCE | 1 | size | $1 |
| NOSPEC | 1 | size | |
| NOSPEC | 1 | size | |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HOST_DATA | 1 | size | 0,4096-12884905984[c] |
| USER_DATA | 1 | size | 0,4096-4294967296[c] |
| NO_OVERFLOW_SIMPLE | 0 | dev->cma_area->available_count | |
| UNITS | 0 | dev | unit_byte |
drivers/nvme/host/pci.c nvme_alloc_host_mem_single() -> dma_alloc_noncontiguous()
| 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->attach_deferred | 0-1 |
| PARAM_VALUE | 0 | dev->iommu->pci_32bit_workaround | 0-1 |
| PARAM_VALUE | 1 | size | 0-17592186040320 |
| PARAM_VALUE | 2 | dir | 0 |
| PARAM_VALUE | 3 | gfp | 3264 |
| PARAM_VALUE | 4 | attrs | 0 |
| CAPPED_DATA | 1 | size | 1 |
| CAPPED_DATA | 1 | size | 1 |
| DATA_SOURCE | 1 | size | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &of->mutex |
drivers/media/common/videobuf2/videobuf2-dma-contig.c vb2_dc_alloc_non_coherent() -> dma_alloc_noncontiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | dev | 4096-ptr_max |
| PARAM_VALUE | 1 | size | 0,4096-u32max |
| PARAM_VALUE | 3 | gfp | 0,64-u32max |
| BIT_INFO | 1 | size | 0x0,0xfffff000 |
| BIT_INFO | 1 | size | 0x0,0xfffff000 |
| BIT_INFO | 3 | gfp | 0xcc0,0xffffffff |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| UNITS | 1 | size | unit_byte |
drivers/usb/core/usb.c usb_alloc_noncoherent() -> dma_alloc_noncontiguous()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 2 | dir | 1-2 |
| PARAM_VALUE | 3 | gfp | 3072,3264 |
| PARAM_VALUE | 4 | attrs | 0 |
| DATA_SOURCE | 1 | size | $1 |
| DATA_SOURCE | 2 | dir | $4 |
| DATA_SOURCE | 3 | gfp | $2 |
| HARD_MAX | 3 | gfp | 3264 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| UNITS | 0 | dev | unit_byte |
| HALF_LOCKED2 | &dev->v4l_lock |