개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

dmao_get_size(9f)

dmao_get_size(9F)              Kernel Functions              dmao_get_size(9F)



NAME
       dmao_get_size, dmao_set_size - get and set the size of a DMA object

SYNOPSIS
       # include <sys/ddidmareq.h>

       size_t dmao_get_size(const ddi_dma_obj_t *dp);

       void dmao_set_size(ddi_dma_obj_t *dp, size_t size);

INTERFACE LEVEL
       Solaris DDI specific (Solaris DDI).

PARAMETERS
       dmao_get_size


                        dp    Pointer  to  the ddi_dma_obj_t of the DMA object
                              whose size is to be returned.




       dmao_set_size


                        dp    Pointer to the ddi_dma_obj_t of the  DMA  object
                              whose size is to be set.




       size             Value of size in bytes.



DESCRIPTION
       The  dmao_get_size() function supports getting the size of a DMA object
       from the ddi_dma_req structure.


       The dmao_set_size() supports setting the size of a DMA  object  in  the
       ddi_dma_req structure.

RETURN VALUES
       The  dmao_get_size()  function  returns  the  size of the DMA object in
       bytes.

WARNINGS
       Drivers looking to map DMA objects larger than 4GB in size must use the
       dmao_get_size()  and  dmao_set_size()  interfaces.  Using the dmao_size
       field of the dmar_object structure directly will result  in  an  unsuc‐
       cessful mapping.


       Mixed  operations  are  not  supported,  that  is,  getting  by reading
       dmao_size directly and  setting  by  using  dmao_set_size(),  and  vice
       versa.

SEE ALSO
       ddi_dma_req(9S),     ddi_dma_addr_setup(9F),     ddi_dma_buf_setup(9F),
       ddi_dma_curwin(9F), ddi_dma_free(9F), ddi_dma_movwin(9F),  ddi_dma_set‐
       up(9F), ddi_dma_sync(9F)



Oracle Solaris 11.4               08 Nov 2016                dmao_get_size(9F)