132 lines
3.4 KiB
HTML
132 lines
3.4 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of __PPC_YIELD</TITLE>
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</HEAD><BODY>
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<H1>__PPC_YIELD</H1>
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Section: Linux Programmer'sManual (3)<BR>Updated: 2017-09-15<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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__ppc_yield, __ppc_mdoio, __ppc_mdoom -
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Hint the processor to release shared resources
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>#include <<A HREF="file:///usr/include/sys/platform/ppc.h">sys/platform/ppc.h</A>></B>
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<P>
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<B>void __ppc_yield(void);</B>
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<BR>
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<B>void __ppc_mdoio(void);</B>
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<BR>
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<B>void __ppc_mdoom(void);</B>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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These functions
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provide hints about the usage of resources that are shared with other
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processors on the Power architecture.
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They can be used, for example, if a program waiting on a lock intends
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to divert the shared resources to be used by other processors.
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<P>
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<B>__ppc_yield</B>()
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provides a hint that performance will probably be improved if shared
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resources dedicated to the executing processor are released for use by
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other processors.
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<P>
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<B>__ppc_mdoio</B>()
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provides a hint that performance will probably be improved if shared
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resources dedicated to the executing processor are released until all
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outstanding storage accesses to caching-inhibited storage have been
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completed.
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<P>
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<B>__ppc_mdoom</B>()
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provides a hint that performance will probably be improved if shared
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resources dedicated to the executing processor are released until all
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outstanding storage accesses to cacheable storage for which the data
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is not in the cache have been completed.
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<A NAME="lbAE"> </A>
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<H2>VERSIONS</H2>
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These functions first appeared in glibc in version 2.18.
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<A NAME="lbAF"> </A>
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<H2>ATTRIBUTES</H2>
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For an explanation of the terms used in this section, see
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<B><A HREF="/cgi-bin/man/man2html?7+attributes">attributes</A></B>(7).
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<TABLE BORDER>
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<TR VALIGN=top><TD><B>Interface</B></TD><TD><B>Attribute</B></TD><TD><B>Value</B><BR></TD></TR>
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<TR VALIGN=top><TD>
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<B>__ppc_yield</B>(),
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<B>__ppc_mdoio</B>(),
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<B>__ppc_mdoom</B>()
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</TD><TD>Thread safety</TD><TD>MT-Safe<BR></TD></TR>
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</TABLE>
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<A NAME="lbAG"> </A>
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<H2>CONFORMING TO</H2>
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These functions are nonstandard GNU extensions.
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<A NAME="lbAH"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?3+__ppc_set_ppr_med">__ppc_set_ppr_med</A></B>(3)
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<P>
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<I>Power ISA, Book II - Section 3.2 ("or" architecture)</I>
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<A NAME="lbAI"> </A>
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<H2>COLOPHON</H2>
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This page is part of release 5.05 of the Linux
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<I>man-pages</I>
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="4"><A HREF="#lbAE">VERSIONS</A><DD>
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<DT id="5"><A HREF="#lbAF">ATTRIBUTES</A><DD>
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<DT id="6"><A HREF="#lbAG">CONFORMING TO</A><DD>
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<DT id="7"><A HREF="#lbAH">SEE ALSO</A><DD>
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<DT id="8"><A HREF="#lbAI">COLOPHON</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:52 GMT, March 31, 2021
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