omx/mm-video/qdsp6/vdec/src/pmem.h

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#ifndef _PMEM_SIMPLE_H_
#define _PMEM_SIMPLE_H_

#define pmem_alloc vdec_pmem_alloc
#define pmem_free vdec_pmem_free

struct pmem {
   void *data;
   int fd;

   unsigned phys;
   unsigned size;
};

int pmem_alloc(struct pmem *out, unsigned sz);
void pmem_free(struct pmem *pmem);

#ifdef USE_PMEM_ADSP_CACHED

//Cache operation to perform on the pmem region
typedef enum {
  PMEM_CACHE_FLUSH = 0,
  PMEM_CACHE_INVALIDATE,
  PMEM_CACHE_FLUSH_INVALIDATE,
  PMEM_CACHE_INVALID_OP
} PMEM_CACHE_OP;

/**
  * This method is used to perform cache operations on the pmem regoin
  * in the decoder.
  *
  * Prerequisite: pmem_alloc should have been called.
  *
  *  @param[in] pmem_id
  *     id of the pmem region to use.
  *
  *  @param[in] addr
  *     The virtual addr of the pmem region
  *
  *  @param[in] size
  *     The size of the region
  *
  *  @param[in] op
  *     Cache operation to perform as defined by PMEM_CACHE_OP
  */
void pmem_cachemaint(int pmem_id, void *addr, unsigned size, PMEM_CACHE_OP op);
#endif
#endif