UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull irq fix from Ingo Molnar:
 "ARM VIC (Vectored Irq Controller) irqchip driver fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip: vic: Properly chain the cascaded IRQs
This commit is contained in:
Linus Torvalds 2014-04-16 16:36:00 -07:00
parent d99d5917e7 f6da9fe45c
commit 17cf7db27b
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/irqchip/irq-vic.c
View File

@ -24,6 +24,7 @@
#include <linux/list.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_address.h>
@ -228,12 +229,17 @@ static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
static void vic_handle_irq_cascaded(unsigned int irq, struct irq_desc *desc)
{
u32 stat, hwirq;
struct irq_chip *host_chip = irq_desc_get_chip(desc);
struct vic_device *vic = irq_desc_get_handler_data(desc);
chained_irq_enter(host_chip, desc);
while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {
hwirq = ffs(stat) - 1;
generic_handle_irq(irq_find_mapping(vic->domain, hwirq));
}
chained_irq_exit(host_chip, desc);
}
/*