From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/m68k/68360/ints.c | 138 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 kernel/arch/m68k/68360/ints.c (limited to 'kernel/arch/m68k/68360/ints.c') diff --git a/kernel/arch/m68k/68360/ints.c b/kernel/arch/m68k/68360/ints.c new file mode 100644 index 000000000..2360fc046 --- /dev/null +++ b/kernel/arch/m68k/68360/ints.c @@ -0,0 +1,138 @@ +/* + * ints.c - first level interrupt handlers + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Copyright (c) 2000 Michael Leslie + * Copyright (c) 1996 Roman Zippel + * Copyright (c) 1999 D. Jeff Dionne + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* from quicc/commproc.c: */ +extern QUICC *pquicc; +extern void cpm_interrupt_init(void); + +#define INTERNAL_IRQS (96) + +/* assembler routines */ +asmlinkage void system_call(void); +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void bad_interrupt(void); +asmlinkage void inthandler(void); + +static void intc_irq_unmask(struct irq_data *d) +{ + pquicc->intr_cimr |= (1 << d->irq); +} + +static void intc_irq_mask(struct irq_data *d) +{ + pquicc->intr_cimr &= ~(1 << d->irq); +} + +static void intc_irq_ack(struct irq_data *d) +{ + pquicc->intr_cisr = (1 << d->irq); +} + +static struct irq_chip intc_irq_chip = { + .name = "M68K-INTC", + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_ack = intc_irq_ack, +}; + +/* + * This function should be called during kernel startup to initialize + * the vector table. + */ +void __init trap_init(void) +{ + int vba = (CPM_VECTOR_BASE<<4); + + /* set up the vectors */ + _ramvec[2] = buserr; + _ramvec[3] = trap; + _ramvec[4] = trap; + _ramvec[5] = trap; + _ramvec[6] = trap; + _ramvec[7] = trap; + _ramvec[8] = trap; + _ramvec[9] = trap; + _ramvec[10] = trap; + _ramvec[11] = trap; + _ramvec[12] = trap; + _ramvec[13] = trap; + _ramvec[14] = trap; + _ramvec[15] = trap; + + _ramvec[32] = system_call; + _ramvec[33] = trap; + + cpm_interrupt_init(); + + /* set up CICR for vector base address and irq level */ + /* irl = 4, hp = 1f - see MC68360UM p 7-377 */ + pquicc->intr_cicr = 0x00e49f00 | vba; + + /* CPM interrupt vectors: (p 7-376) */ + _ramvec[vba+CPMVEC_ERROR] = bad_interrupt; /* Error */ + _ramvec[vba+CPMVEC_PIO_PC11] = inthandler; /* pio - pc11 */ + _ramvec[vba+CPMVEC_PIO_PC10] = inthandler; /* pio - pc10 */ + _ramvec[vba+CPMVEC_SMC2] = inthandler; /* smc2/pip */ + _ramvec[vba+CPMVEC_SMC1] = inthandler; /* smc1 */ + _ramvec[vba+CPMVEC_SPI] = inthandler; /* spi */ + _ramvec[vba+CPMVEC_PIO_PC9] = inthandler; /* pio - pc9 */ + _ramvec[vba+CPMVEC_TIMER4] = inthandler; /* timer 4 */ + _ramvec[vba+CPMVEC_RESERVED1] = inthandler; /* reserved */ + _ramvec[vba+CPMVEC_PIO_PC8] = inthandler; /* pio - pc8 */ + _ramvec[vba+CPMVEC_PIO_PC7] = inthandler; /* pio - pc7 */ + _ramvec[vba+CPMVEC_PIO_PC6] = inthandler; /* pio - pc6 */ + _ramvec[vba+CPMVEC_TIMER3] = inthandler; /* timer 3 */ + _ramvec[vba+CPMVEC_PIO_PC5] = inthandler; /* pio - pc5 */ + _ramvec[vba+CPMVEC_PIO_PC4] = inthandler; /* pio - pc4 */ + _ramvec[vba+CPMVEC_RESERVED2] = inthandler; /* reserved */ + _ramvec[vba+CPMVEC_RISCTIMER] = inthandler; /* timer table */ + _ramvec[vba+CPMVEC_TIMER2] = inthandler; /* timer 2 */ + _ramvec[vba+CPMVEC_RESERVED3] = inthandler; /* reserved */ + _ramvec[vba+CPMVEC_IDMA2] = inthandler; /* idma 2 */ + _ramvec[vba+CPMVEC_IDMA1] = inthandler; /* idma 1 */ + _ramvec[vba+CPMVEC_SDMA_CB_ERR] = inthandler; /* sdma channel bus error */ + _ramvec[vba+CPMVEC_PIO_PC3] = inthandler; /* pio - pc3 */ + _ramvec[vba+CPMVEC_PIO_PC2] = inthandler; /* pio - pc2 */ + /* _ramvec[vba+CPMVEC_TIMER1] = cpm_isr_timer1; */ /* timer 1 */ + _ramvec[vba+CPMVEC_TIMER1] = inthandler; /* timer 1 */ + _ramvec[vba+CPMVEC_PIO_PC1] = inthandler; /* pio - pc1 */ + _ramvec[vba+CPMVEC_SCC4] = inthandler; /* scc 4 */ + _ramvec[vba+CPMVEC_SCC3] = inthandler; /* scc 3 */ + _ramvec[vba+CPMVEC_SCC2] = inthandler; /* scc 2 */ + _ramvec[vba+CPMVEC_SCC1] = inthandler; /* scc 1 */ + _ramvec[vba+CPMVEC_PIO_PC0] = inthandler; /* pio - pc0 */ + + + /* turn off all CPM interrupts */ + pquicc->intr_cimr = 0x00000000; +} + +void init_IRQ(void) +{ + int i; + + for (i = 0; (i < NR_IRQS); i++) { + irq_set_chip(i, &intc_irq_chip); + irq_set_handler(i, handle_level_irq); + } +} + -- cgit 1.2.3-korg