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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/m68k/apollo/dn_ints.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/m68k/apollo/dn_ints.c')
-rw-r--r-- | kernel/arch/m68k/apollo/dn_ints.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kernel/arch/m68k/apollo/dn_ints.c b/kernel/arch/m68k/apollo/dn_ints.c new file mode 100644 index 000000000..17be1e7e2 --- /dev/null +++ b/kernel/arch/m68k/apollo/dn_ints.c @@ -0,0 +1,47 @@ +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/traps.h> +#include <asm/apollohw.h> + +unsigned int apollo_irq_startup(struct irq_data *data) +{ + unsigned int irq = data->irq; + + if (irq < 8) + *(volatile unsigned char *)(pica+1) &= ~(1 << irq); + else + *(volatile unsigned char *)(picb+1) &= ~(1 << (irq - 8)); + return 0; +} + +void apollo_irq_shutdown(struct irq_data *data) +{ + unsigned int irq = data->irq; + + if (irq < 8) + *(volatile unsigned char *)(pica+1) |= (1 << irq); + else + *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8)); +} + +void apollo_irq_eoi(struct irq_data *data) +{ + *(volatile unsigned char *)(pica) = 0x20; + *(volatile unsigned char *)(picb) = 0x20; +} + +static struct irq_chip apollo_irq_chip = { + .name = "apollo", + .irq_startup = apollo_irq_startup, + .irq_shutdown = apollo_irq_shutdown, + .irq_eoi = apollo_irq_eoi, +}; + + +void __init dn_init_IRQ(void) +{ + m68k_setup_user_interrupt(VEC_USER + 96, 16); + m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq, + IRQ_APOLLO, 16); +} |