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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2014-02-13 13:02:32 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-03-04 10:41:04 +0100
commit84ec96a6150477b9509664557bc6ad4eaa21f72a (patch)
treec43505c1a361a69e0d9df17c18b8bc4275ea27cc /arch/s390/include
parent2e0210432d34bc7f01644905c2bb2d5d9be5b6ac (diff)
downloadop-kernel-dev-84ec96a6150477b9509664557bc6ad4eaa21f72a.zip
op-kernel-dev-84ec96a6150477b9509664557bc6ad4eaa21f72a.tar.gz
s390/airq: add support for irq ranges
Add airq_iv_alloc and airq_iv_free to allocate and free consecutive ranges of irqs from the interrupt vector. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/airq.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h
index 4bbb595..bd93ff6 100644
--- a/arch/s390/include/asm/airq.h
+++ b/arch/s390/include/asm/airq.h
@@ -44,11 +44,21 @@ struct airq_iv {
struct airq_iv *airq_iv_create(unsigned long bits, unsigned long flags);
void airq_iv_release(struct airq_iv *iv);
-unsigned long airq_iv_alloc_bit(struct airq_iv *iv);
-void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit);
+unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num);
+void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num);
unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start,
unsigned long end);
+static inline unsigned long airq_iv_alloc_bit(struct airq_iv *iv)
+{
+ return airq_iv_alloc(iv, 1);
+}
+
+static inline void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit)
+{
+ airq_iv_free(iv, bit, 1);
+}
+
static inline unsigned long airq_iv_end(struct airq_iv *iv)
{
return iv->end;
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