diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2015-08-02 22:38:27 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-08-06 00:14:59 +0200 |
| commit | a782a7e46bb50822fabfeb7271605762a59c86df (patch) | |
| tree | a1b4d1798fc5b87f255716f07a170795cf5d5600 /arch/x86/include/asm/irq.h | |
| parent | genirq: Provide irq_desc_has_action (diff) | |
| download | linux-a782a7e46bb50822fabfeb7271605762a59c86df.tar.xz linux-a782a7e46bb50822fabfeb7271605762a59c86df.zip | |
x86/irq: Store irq descriptor in vector array
We can spare the irq_desc lookup in the interrupt entry code if we
store the descriptor pointer in the vector array instead the interrupt
number.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: http://lkml.kernel.org/r/20150802203609.717724106@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/irq.h')
| -rw-r--r-- | arch/x86/include/asm/irq.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index 8008d06581c7..881b4768644a 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -36,7 +36,9 @@ extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void)); extern void (*x86_platform_ipi_callback)(void); extern void native_init_IRQ(void); -extern bool handle_irq(unsigned irq, struct pt_regs *regs); + +struct irq_desc; +extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs); extern __visible unsigned int do_IRQ(struct pt_regs *regs); |