[RFC Part2 v1 05/21] x86, hpet: Use new irqdomain interfaces to allocate/free IRQ
From: Jiang Liu <hidden>
Date: 2014-09-11 14:02:35
Also in:
linux-acpi, linux-pci, lkml
Subsystem:
hpet: x86, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Use new irqdomain interfaces to allocate/free IRQ for HPET, so we could kill GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later. Signed-off-by: Jiang Liu <redacted> --- arch/x86/kernel/hpet.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 319bcb9372fe..cb60652f59a3 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c@@ -11,6 +11,7 @@ #include <linux/cpu.h> #include <linux/pm.h> #include <linux/io.h> +#include <linux/irqdomain.h> #include <asm/fixmap.h> #include <asm/hpet.h>
@@ -476,7 +477,7 @@ static int hpet_msi_next_event(unsigned long delta, static int hpet_setup_msi_irq(unsigned int irq) { if (x86_msi.setup_hpet_msi(irq, hpet_blockid)) { - irq_free_hwirq(irq); + irq_domain_free_irqs(irq, 1); return -EINVAL; } return 0;
@@ -484,9 +485,10 @@ static int hpet_setup_msi_irq(unsigned int irq) static int hpet_assign_irq(struct hpet_dev *dev) { - unsigned int irq = irq_alloc_hwirq(-1); + int irq; - if (!irq) + irq = irq_domain_alloc_irqs(NULL, -1, 1, NUMA_NO_NODE, NULL); + if (irq <= 0) return -EINVAL; irq_set_handler_data(irq, dev);
--
1.7.10.4