'\" t
.\"     Title: kgdb_roundup_cpus
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Kernel Debugger Internals
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "KGDB_ROUNDUP_CPUS" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Kernel Debugger Internals"
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.SH "NAME"
kgdb_roundup_cpus \- Get other CPUs into a holding pattern
.SH "SYNOPSIS"
.HP \w'void\ kgdb_roundup_cpus('u
.BI "void kgdb_roundup_cpus(unsigned\ long\ " "flags" ");"
.SH "ARGUMENTS"
.PP
\fIflags\fR
.RS 4
Current IRQ state
.RE
.SH "DESCRIPTION"
.PP
On SMP systems, we need to get the attention of the other CPUs and get them into a known state\&. This should do what is needed to get the other CPUs to call
\fBkgdb_wait\fR\&. Note that on some arches, the NMI approach is not used for rounding up all the CPUs\&. For example, in case of MIPS,
\fBsmp_call_function\fR
is used to roundup CPUs\&. In this case, we have to make sure that interrupts are enabled before calling
\fBsmp_call_function\fR\&. The argument to this function is the flags that will be used when restoring the interrupts\&. There is
\fBlocal_irq_save\fR
call before
\fBkgdb_roundup_cpus\fR\&.
.PP
On non\-SMP systems, this is not called\&.
.SH "AUTHOR"
.PP
\fBJason Wessel\fR <\&jason.wessel@windriver.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br