From: A C <adrien_chiron@domain.hid>
To: adeos <adeos-main@gna.org>
Subject: [Adeos-main] __ipipe_grab_irq
Date: Thu, 7 Jan 2010 13:48:23 +0000 (GMT) [thread overview]
Message-ID: <449944.37907.qm@domain.hid> (raw)
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Hello,
in the function __ipipe_grab_irq for the NIOS2, there is the following block :
if (likely(irq == __ipipe_hrtimer_irq)) {
__raw_get_cpu_var(__ipipe_tick_regs).estatus = regs->estatus;
__raw_get_cpu_var(__ipipe_tick_regs).ea = regs->ea;
if (!__ipipe_root_domain_p) {
__raw_get_cpu_var(__ipipe_tick_regs).estatus &= ~NIOS2_STATUS_PIE_MSK);
}
}
We do not understand why there is an unusual case for an interruption from the timer. We understand each lines but not the global nature. Any help ?
Cheers
Adrien Chiron & Vincent Vanbesien
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next reply other threads:[~2010-01-07 13:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-07 13:48 A C [this message]
2010-01-07 14:25 ` [Adeos-main] __ipipe_grab_irq Philippe Gerum
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