#include <errno.h>#include <fcntl.h>#include <limits.h>#include <linux/dma-buf.h>#include <pthread.h>#include <stdint.h>#include <stdlib.h>#include <string.h>#include <sys/ioctl.h>#include <sys/mman.h>#include <sys/stat.h>#include <sys/types.h>#include <unistd.h>#include "ion.h"#include "memory_allocator.h"
Include dependency graph for memory_allocator_ion.cpp:
Go to the source code of this file.
Macros | |
| #define | XAIE_128BIT_ALIGN_MASK 0xFF |
Functions | |
| int * | mlir_aie_mem_alloc (struct aie_libxaie_ctx_t *ctx, ext_mem_model_t &handle, int size) |
| This is the memory function to allocate a memory. | |
| void | mlir_aie_sync_mem_cpu (ext_mem_model_t &handle) |
| This is function to attach the allocated memory descriptor to kernel driver. | |
| void | mlir_aie_sync_mem_dev (ext_mem_model_t &handle) |
| This is the memory function to sync the memory for Device. | |
| u64 | mlir_aie_get_device_address (struct aie_libxaie_ctx_t *_xaie, void *VA) |
| Return a device address corresponding to the given host address. | |
Macro Definition Documentation
◆ XAIE_128BIT_ALIGN_MASK
| #define XAIE_128BIT_ALIGN_MASK 0xFF |
Definition at line 35 of file memory_allocator_ion.cpp.
Function Documentation
◆ mlir_aie_get_device_address()
| u64 mlir_aie_get_device_address | ( | aie_libxaie_ctx_t * | _xaie, |
| void * | host_address | ||
| ) |
Return a device address corresponding to the given host address.
- Parameters
-
host_address A host-side pointer returned from mlir_aie_mem_alloc
Definition at line 256 of file memory_allocator_ion.cpp.
◆ mlir_aie_mem_alloc()
| int * mlir_aie_mem_alloc | ( | struct aie_libxaie_ctx_t * | ctx, |
| ext_mem_model_t & | handle, | ||
| int | size | ||
| ) |
This is the memory function to allocate a memory.
Allocate a buffer in device memory.
- Parameters
-
handle Device Instance size Size of the memory
- Returns
- Pointer to the allocated memory instance.
Definition at line 45 of file memory_allocator_ion.cpp.
References ion_heap_query::cnt, aie_libxaie_ctx_t::DevInst, ion_allocation_data::fd, ext_mem_model_t::fd, ion_heap_data::heap_id, ion_allocation_data::heap_id_mask, ion_heap_query::heaps, ION_HEAP_TYPE_SYSTEM_CONTIG, ION_IOC_ALLOC, ION_IOC_HEAP_QUERY, ion_allocation_data::len, ext_mem_model_t::MemInst, ion_heap_data::name, ext_mem_model_t::size, ion_heap_data::type, and ext_mem_model_t::virtualAddr.
◆ mlir_aie_sync_mem_cpu()
| void mlir_aie_sync_mem_cpu | ( | ext_mem_model_t & | handle | ) |
This is function to attach the allocated memory descriptor to kernel driver.
Synchronize the buffer from the device to the host CPU.
- Parameters
-
IOInst Linux IO instance pointer MemInst Linux Memory instance pointer.
- Returns
- XAIE_OK on success, Error code on failure.
- Note
- Internal only. This is the memory function to free the memory
- Parameters
-
MemInst Memory instance pointer.
- Returns
- XAIE_OK on success, Error code on failure.
- Note
- Internal only. This is the memory function to sync the memory for CPU.
- Parameters
-
MemInst Memory instance pointer.
- Returns
- XAIE_OK on success, Error code on failure.
- Note
- Internal only.
Definition at line 213 of file memory_allocator_ion.cpp.
References ext_mem_model_t::fd.
◆ mlir_aie_sync_mem_dev()
| void mlir_aie_sync_mem_dev | ( | ext_mem_model_t & | handle | ) |
This is the memory function to sync the memory for Device.
Synchronize the buffer from the host CPU to the device.
- Parameters
-
MemInst Memory instance pointer.
- Returns
- XAIE_OK on success, Error code on failure.
- Note
- Internal only.
Definition at line 240 of file memory_allocator_ion.cpp.
References ext_mem_model_t::fd.
