diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/microblaze/kernel/irq.c | |
Diffstat (limited to 'arch/microblaze/kernel/irq.c')
| -rw-r--r-- | arch/microblaze/kernel/irq.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c new file mode 100644 index 00000000..ace700af --- /dev/null +++ b/arch/microblaze/kernel/irq.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> + * Copyright (C) 2007-2009 PetaLogix + * Copyright (C) 2006 Atmark Techno, Inc. + * + * 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. + */ + +#include <linux/init.h> +#include <linux/ftrace.h> +#include <linux/kernel.h> +#include <linux/hardirq.h> +#include <linux/interrupt.h> +#include <linux/irqflags.h> +#include <linux/seq_file.h> +#include <linux/kernel_stat.h> +#include <linux/irq.h> +#include <linux/of_irq.h> +#include <linux/export.h> + +#include <asm/prom.h> + +static u32 concurrent_irq; + +void __irq_entry do_IRQ(struct pt_regs *regs) +{ + unsigned int irq; + struct pt_regs *old_regs = set_irq_regs(regs); + trace_hardirqs_off(); + + irq_enter(); + irq = get_irq(); +next_irq: + BUG_ON(!irq); + generic_handle_irq(irq); + + irq = get_irq(); + if (irq != -1U) { + pr_debug("next irq: %d\n", irq); + ++concurrent_irq; + goto next_irq; + } + + irq_exit(); + set_irq_regs(old_regs); + trace_hardirqs_on(); +} |