cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/bcm47xx/irq.c

/*
 *  Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "bcm47xx_private.h"

#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/setup.h>
#include <asm/irq_cpu.h>
#include <bcm47xx.h>


asmlinkage void plat_irq_dispatch(void) { u32 cause; cause = read_c0_cause() & read_c0_status() & CAUSEF_IP; clear_c0_status(cause); if (cause & CAUSEF_IP7) do_IRQ(7); if (cause & CAUSEF_IP2) do_IRQ(2); if (cause & CAUSEF_IP3) do_IRQ(3); if (cause & CAUSEF_IP4) do_IRQ(4); if (cause & CAUSEF_IP5) do_IRQ(5); if (cause & CAUSEF_IP6) do_IRQ(6); }

Contributors

PersonTokensPropCommitsCommitProp
Aurelien Jarno9198.91%150.00%
Hauke Mehrtens11.09%150.00%
Total92100.00%2100.00%

#define DEFINE_HWx_IRQDISPATCH(x) \ static void bcm47xx_hw ## x ## _irqdispatch(void) \ { \ do_IRQ(x); \ } DEFINE_HWx_IRQDISPATCH(2) DEFINE_HWx_IRQDISPATCH(3) DEFINE_HWx_IRQDISPATCH(4) DEFINE_HWx_IRQDISPATCH(5) DEFINE_HWx_IRQDISPATCH(6) DEFINE_HWx_IRQDISPATCH(7)
void __init arch_init_irq(void) { /* * This is the first arch callback after mm_init (we can use kmalloc), * so let's finish bus initialization now. */ bcm47xx_bus_setup(); #ifdef CONFIG_BCM47XX_BCMA if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) { bcma_write32(bcm47xx_bus.bcma.bus.drv_mips.core, BCMA_MIPS_MIPS74K_INTMASK(5), 1 << 31); /* * the kernel reads the timer irq from some register and thinks * it's #5, but we offset it by 2 and route to #7 */ cp0_compare_irq = 7; } #endif mips_cpu_irq_init(); if (cpu_has_vint) { pr_info("Setting up vectored interrupts\n"); set_vi_handler(2, bcm47xx_hw2_irqdispatch); set_vi_handler(3, bcm47xx_hw3_irqdispatch); set_vi_handler(4, bcm47xx_hw4_irqdispatch); set_vi_handler(5, bcm47xx_hw5_irqdispatch); set_vi_handler(6, bcm47xx_hw6_irqdispatch); set_vi_handler(7, bcm47xx_hw7_irqdispatch); } }

Contributors

PersonTokensPropCommitsCommitProp
Hauke Mehrtens9386.11%250.00%
Aurelien Jarno1110.19%125.00%
Rafał Miłecki43.70%125.00%
Total108100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Hauke Mehrtens13251.97%360.00%
Aurelien Jarno11545.28%120.00%
Rafał Miłecki72.76%120.00%
Total254100.00%5100.00%
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