<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML ><HEAD ><TITLE >pci_pool_alloc</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="The Linux Kernel API" HREF="book1.html"><LINK REL="UP" TITLE="PCI Support Library" HREF="x8182.html"><LINK REL="PREVIOUS" TITLE="pci_pool_destroy" HREF="r9148.html"><LINK REL="NEXT" TITLE="pci_pool_free" HREF="r9214.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >The Linux Kernel API</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="r9148.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="r9214.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="AEN9174" ></A ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >pci_pool_alloc</SPAN ></SPAN ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN9178" ></A ><H2 >Name</H2 >pci_pool_alloc -- get a block of consistent memory </DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN9181" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN9183" ></A ><P ></P ><P ><CODE ><CODE CLASS="FUNCDEF" >void * <TT CLASS="FUNCTION" >pci_pool_alloc </TT ></CODE >(struct pci_pool * <TT CLASS="PARAMETER" ><I >pool</I ></TT >, int <TT CLASS="PARAMETER" ><I >mem_flags</I ></TT >, dma_addr_t * <TT CLASS="PARAMETER" ><I >handle</I ></TT >);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN9193" ></A ><H2 >Arguments</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="PARAMETER" ><I >pool</I ></TT ></DT ><DD ><P > pci pool that will produce the block </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >mem_flags</I ></TT ></DT ><DD ><P > SLAB_KERNEL or SLAB_ATOMIC </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >handle</I ></TT ></DT ><DD ><P > pointer to dma address of block </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN9211" ></A ><H2 >Description</H2 ><P > This returns the kernel virtual address of a currently unused block, and reports its dma address through the handle. If such a memory block can't be allocated, null is returned. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="r9148.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="book1.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="r9214.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >pci_pool_destroy</SPAN ></SPAN ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="x8182.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >pci_pool_free</SPAN ></SPAN ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >