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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/txx9/generic/irq_tx4927.c
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/*

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 * Common tx4927 irq handler

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 *

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 * Author: MontaVista Software, Inc.

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 *         [email protected]

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 *

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 *  under the terms of the GNU General Public License as published by the

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 *  Free Software Foundation; either version 2 of the License, or (at your

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 *  option) any later version.

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 *

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 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED

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 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

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 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

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 *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

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 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

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 *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS

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 *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

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 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR

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 *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE

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 *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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 *

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 *  You should have received a copy of the GNU General Public License along

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 *  with this program; if not, write to the Free Software Foundation, Inc.,

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 *  675 Mass Ave, Cambridge, MA 02139, USA.

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 */

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#include <linux/init.h>

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#include <linux/interrupt.h>

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#include <linux/irq.h>

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#include <asm/irq_cpu.h>

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#include <asm/txx9/tx4927.h>

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void __init tx4927_irq_init(void)

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{

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	int i;

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	mips_cpu_irq_init();

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	txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);

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	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,

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				handle_simple_irq);

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	/* raise priority for errors, timers, SIO */

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	txx9_irq_set_pri(TX4927_IR_ECCERR, 7);

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	txx9_irq_set_pri(TX4927_IR_WTOERR, 7);

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	txx9_irq_set_pri(TX4927_IR_PCIERR, 7);

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	txx9_irq_set_pri(TX4927_IR_PCIPME, 7);

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	for (i = 0; i < TX4927_NUM_IR_TMR; i++)

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		txx9_irq_set_pri(TX4927_IR_TMR(i), 6);

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	for (i = 0; i < TX4927_NUM_IR_SIO; i++)

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		txx9_irq_set_pri(TX4927_IR_SIO(i), 5);

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}

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