Skip site navigation (1)Skip section navigation (2) 
Date:      Tue, 27 Sep 2011 11:25:57 +0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Alexander Motin <mav@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: ath / 802.11n performance issues and timer code
Message-ID:  <CAJ-VmonbAgsNjdCstd_Ap6JBqowD1NX0J5rQ=t9ideaiXTXd%2BA@mail.gmail.com>
In-Reply-To: <CAJ-Vmong0dJN=t=Qq4%2BaLyBGxEKAKBd8oX4y9P0goux%2BZAc3yA@mail.gmail.com>
References:  <CAJ-VmomZyDJV62yCQOvG=UB6H4wfz9=3_cWzEL7vWAA14TCyYA@mail.gmail.com> <201109261053.30410.jhb@freebsd.org> <CAJ-VmomyMQpcpHo4ve-_O67_8VVJW-YRqWeb-7exSxzV5rz_pA@mail.gmail.com> <201109261305.57602.jhb@freebsd.org> <CAJ-Vmo=ZBwBu6Mk=XdY1p18s5=kQvmC3qZc1JzPtpppGBs4Z=Q@mail.gmail.com> <CAJ-Vmong0dJN=t=Qq4%2BaLyBGxEKAKBd8oX4y9P0goux%2BZAc3yA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help 
.. erm, sys/mips/mips/machdep.c:

/*
 * call platform specific code to halt (until next interrupt) for the idle loop
 */
void
cpu_idle(int busy)
{
        KASSERT((mips_rd_status() & MIPS_SR_INT_IE) != 0,
                ("interrupts disabled in idle process."));
        KASSERT((mips_rd_status() & MIPS_INT_MASK) != 0,
                ("all interrupts masked in idle process."));

        if (!busy) {
                critical_enter();
                cpu_idleclock();
        }
        __asm __volatile ("wait");
        if (!busy) {
                cpu_activeclock();
                critical_exit();
        }
}

.. does that look right?


Adrian

Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJ-VmonbAgsNjdCstd_Ap6JBqowD1NX0J5rQ=t9ideaiXTXd%2BA>