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.

ddi_unmap_regs(9f)

ddi_map_regs(9F)               Kernel Functions               ddi_map_regs(9F)

NAME
       ddi_map_regs, ddi_unmap_regs - map or unmap registers

SYNOPSIS
       #include <sys/conf.h>
       #include <sys/ddi.h>
       #include <sys/sunddi.h>

       int ddi_map_regs(dev_info_t *dip, uint_t rnumber, caddr_t *kaddrp,
            off_t offset, off_t len);


       void ddi_unmap_regs(dev_info_t *dip, uint_t rnumber, caddr_t *kaddrp,
            off_t offset, off_t len);

INTERFACE LEVEL
       These  interfaces  are  obsolete. Use ddi_regs_map_setup(9F) instead of
       ddi_map_regs(). Use ddi_regs_map_free(9F) instead of ddi_unmap_regs().

PARAMETERS
   ddi_map_regs()
       dip        Pointer to the device's dev_info structure.


       rnumber    Register set number.


       kaddrp     Pointer to the base kernel address of the mapped region (set
                  on return).


       offset     Offset into register space.


       len        Length to be mapped.


   ddi_unmap_regs()
       dip        Pointer to the device's dev_info structure.


       rnumber    Register set number.


       kaddrp     Pointer to the base kernel address of the region to  be  un‐
                  mapped.


       offset     Offset into register space.


       len        Length to be unmapped.


DESCRIPTION
       The  ddi_map_regs() function maps in the register set given by rnumber.
       The register number determines which register set  will  be  mapped  if
       more  than  one  exists.  The base kernel virtual address of the mapped
       register set is returned in kaddrp.                      offset  speci‐
       fies  an offset into the register space to start from and len indicates
       the size of the area to be mapped. If len is non-zero, it overrides the
       length given in the register set description. If len and offset are  0,
       the entire space is mapped.


       The ddi_unmap_regs() function undoes mappings set up by ddi_map_regs().
       This  is  provided  for drivers preparing to detach themselves from the
       system, allowing them to release allocated mappings. Mappings  must  be
       released  in  the same way they were mapped (a call to ddi_unmap_regs()
       must correspond to a previous call to ddi_map_regs()).  Releasing  por‐
       tions  of  previous  mappings  is not allowed. rnumber determines which
       register set will be unmapped if more than one exists. The kaddrp, off‐
       set and len specify the area to be unmapped. kaddrp is a pointer to the
       address returned from ddi_map_regs(); offset and len should match  what
       ddi_map_regs() was called with.

RETURN VALUES
       The ddi_map_regs() function returns:

       DDI_SUCCESS    On success


CONTEXT
       These functions can be called from user, interrupt, or kernel context.

ATTRIBUTES
       See attributes(7) for a description of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityObsolete


SEE ALSO
       attributes(7), ddi_regs_map_free(9F), ddi_regs_map_setup(9F)


       Writing Device Drivers in Oracle Solaris 11.4

Oracle Solaris 11.4               25 Jan 2017                 ddi_map_regs(9F)