diff options
Diffstat (limited to 'arch/hexagon/kernel/vm_events.c')
| -rw-r--r-- | arch/hexagon/kernel/vm_events.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/arch/hexagon/kernel/vm_events.c b/arch/hexagon/kernel/vm_events.c new file mode 100644 index 00000000000..741aaa917cd --- /dev/null +++ b/arch/hexagon/kernel/vm_events.c @@ -0,0 +1,104 @@ +/* + * Mostly IRQ support for Hexagon + * + * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <linux/kernel.h> +#include <asm/registers.h> +#include <linux/irq.h> +#include <linux/hardirq.h> + +/* + * show_regs - print pt_regs structure + * @regs: pointer to pt_regs + * + * To-do: add all the accessor definitions to registers.h + * + * Will make this routine a lot easier to write. + */ +void show_regs(struct pt_regs *regs) +{ + show_regs_print_info(KERN_EMERG); + + printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n", + regs->restart_r0, regs->syscall_nr); + printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds); + printk(KERN_EMERG "lc0: \t0x%08lx sa0: 0x%08lx m0: 0x%08lx\n", + regs->lc0, regs->sa0, regs->m0); + printk(KERN_EMERG "lc1: \t0x%08lx sa1: 0x%08lx m1: 0x%08lx\n", + regs->lc1, regs->sa1, regs->m1); + printk(KERN_EMERG "gp: \t0x%08lx ugp: 0x%08lx usr: 0x%08lx\n", + regs->gp, regs->ugp, regs->usr); + printk(KERN_EMERG "cs0: \t0x%08lx cs1: 0x%08lx\n", + regs->cs0, regs->cs1); + printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00, + regs->r01, + regs->r02, + regs->r03); + printk(KERN_EMERG "r4: \t0x%08lx %08lx %08lx %08lx\n", regs->r04, + regs->r05, + regs->r06, + regs->r07); + printk(KERN_EMERG "r8: \t0x%08lx %08lx %08lx %08lx\n", regs->r08, + regs->r09, + regs->r10, + regs->r11); + printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12, + regs->r13, + regs->r14, + regs->r15); + printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16, + regs->r17, + regs->r18, + regs->r19); + printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20, + regs->r21, + regs->r22, + regs->r23); + printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24, + regs->r25, + regs->r26, + regs->r27); + printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28, + regs->r29, + regs->r30, + regs->r31); + + printk(KERN_EMERG "elr: \t0x%08lx cause: 0x%08lx user_mode: %d\n", + pt_elr(regs), pt_cause(regs), user_mode(regs)); + printk(KERN_EMERG "psp: \t0x%08lx badva: 0x%08lx int_enabled: %d\n", + pt_psp(regs), pt_badva(regs), ints_enabled(regs)); +} + +void dummy_handler(struct pt_regs *regs) +{ + unsigned int elr = pt_elr(regs); + printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr); +} + + +void arch_do_IRQ(struct pt_regs *regs) +{ + int irq = pt_cause(regs); + struct pt_regs *old_regs = set_irq_regs(regs); + + irq_enter(); + generic_handle_irq(irq); + irq_exit(); + set_irq_regs(old_regs); +} |