tivx_mem.h

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#ifndef TIVX_MEM_H_
#define TIVX_MEM_H_

#include <VX/vx.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum _tivx_mem_heap_region_e
{
    TIVX_MEM_EXTERNAL,

    TIVX_MEM_INTERNAL_L3,

    TIVX_MEM_INTERNAL_L2,

    TIVX_MEM_INTERNAL_L1,

    TIVX_MEM_EXTERNAL_SCRATCH,

    TIVX_MEM_EXTERNAL_PERSISTENT_NON_CACHEABLE,
    TIVX_MEM_EXTERNAL_SCRATCH_NON_CACHEABLE

} tivx_mem_heap_region_e;

typedef enum _tivx_memory_type_e {
    TIVX_MEMORY_TYPE_DMA = VX_ENUM_BASE(VX_ID_TI, VX_ENUM_MEMORY_TYPE) + 0x0,
} tivx_memory_type_e;

typedef struct _tivx_shared_mem_ptr_t {

    volatile uint32_t mem_heap_region;

    volatile int32_t dma_buf_fd;

    volatile uint64_t shared_ptr;

    volatile uint64_t host_ptr;

    volatile uint32_t dma_buf_fd_offset;

    /* Padding to align to 64 bytes */
    volatile uint32_t rsv[1];

} tivx_shared_mem_ptr_t;

typedef struct _tivx_mem_stats_t {

    vx_uint32 mem_size;

    vx_uint32 free_size;

} tivx_mem_stats;

vx_status tivxMemBufferAlloc(tivx_shared_mem_ptr_t *mem_ptr, uint32_t size, vx_enum mem_heap_region);

vx_status tivxMemBufferFree(tivx_shared_mem_ptr_t *mem_ptr, uint32_t size);

vx_status tivxMemBufferMap(void *host_ptr, uint32_t size, vx_enum mem_type, vx_enum maptype);

vx_status tivxMemBufferUnmap(void *host_ptr, uint32_t size, vx_enum mem_type, vx_enum maptype);

uint64_t tivxMemHost2SharedPtr(uint64_t host_ptr, vx_enum mem_heap_region);

void* tivxMemShared2TargetPtr(const tivx_shared_mem_ptr_t *shared_ptr);

uint64_t tivxMemShared2PhysPtr(uint64_t shared_ptr, vx_enum mem_heap_region);

void *tivxMemAlloc(vx_uint32 size, vx_enum mem_heap_region);

void tivxMemFree(void *ptr, vx_uint32 size, vx_enum mem_heap_region);

void tivxMemStats(tivx_mem_stats *stats, vx_enum mem_type);

int32_t tivxMemResetScratchHeap(vx_enum mem_heap_region);

vx_status tivxMemTranslateVirtAddr(const void *virtAddr, uint64_t *fd, void **phyAddr);

vx_status tivxMemTranslateFd(uint64_t dmaBufFd, uint32_t size, void **virtAddr, void **phyAddr);

void tivxEnableL1DandL2CacheWb(void);

#ifdef __cplusplus
}
#endif

#endif