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.

hat_getkpfnum(9f)

hat_getkpfnum(9F)              Kernel Functions              hat_getkpfnum(9F)



NAME
       hat_getkpfnum - get page frame number for kernel address

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

       pfn_t hat_getkpfnum(caddr_t addr);

INTERFACE LEVEL
       This  interface  is obsolete. A driver devmap(9E) entry point should be
       provided instead.

PARAMETERS
       addr    The kernel virtual address for which the page frame  number  is
               to be returned.


DESCRIPTION
       hat_getkpfnum() returns the page frame number corresponding to the ker‐
       nel virtual address, addr.


       addr must be a kernel virtual address  which  maps  to  device  memory.
       ddi_map_regs(9F)  can  be  used  to  obtain  this address. For example,
       ddi_map_regs(9F) can be called in the driver's attach(9E) routine.  The
       resulting  kernel  virtual  address  can  be  saved  by the driver (see
       ddi_soft_state(9F))   and   used   in   mmap(9E).   The   corresponding
       ddi_unmap_regs(9F) call can be made in the driver's detach(9E) routine.
       Refer to mmap(9E) for more information.

RETURN VALUES
       The page frame number corresponding to the valid, device-mapped virtual
       address addr. Otherwise the return value is undefined.

CONTEXT
       hat_getkpfnum() can be called only from user or kernel context.

ATTRIBUTES
       See attributes(7) for descriptions 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
       attach(9E),   detach(9E),   devmap(9E),   mmap(9E),   ddi_map_regs(9F),
       ddi_soft_state(9F), ddi_unmap_regs(9F)


       Writing Device Drivers in Oracle Solaris 11.4

NOTES
       For some devices, mapping device memory in the driver's attach(9E) rou‐
       tine and unmapping device memory in the driver's detach(9E) routine  is
       a  sizable  drain  on  system  resources.  This  is especially true for
       devices with a  large  amount  of  physical  address  space.  Refer  to
       mmap(9E) for alternative methods.



Oracle Solaris 11.4               11 May 2021                hat_getkpfnum(9F)