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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2016-06-02 14:57:17 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-06-13 15:58:24 +0200 |
| commit | bb98f396f14477480273a92a75da448af6a9ae85 (patch) | |
| tree | f92e172499b0fdb4ab849d02b20d0b2282b3bd2a /arch/s390/include/asm/irq.h | |
| parent | s390/Documentation: improve sort command for trace buffer (diff) | |
| download | linux-bb98f396f14477480273a92a75da448af6a9ae85.tar.xz linux-bb98f396f14477480273a92a75da448af6a9ae85.zip | |
s390: use SPARSE_IRQ
Use dynamically allocated irq descriptors on s390 which allows
us to get rid of the s390 specific config option PCI_NR_MSI and
exploit more MSI interrupts. Also the size of the kernel image
is reduced by 131K (using performance_defconfig).
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/irq.h')
| -rw-r--r-- | arch/s390/include/asm/irq.h | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index f97b055de76a..70c9bce766f5 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -7,11 +7,8 @@ #define NR_IRQS_BASE 3 -#ifdef CONFIG_PCI_NR_MSI -# define NR_IRQS (NR_IRQS_BASE + CONFIG_PCI_NR_MSI) -#else -# define NR_IRQS NR_IRQS_BASE -#endif +#define NR_IRQS NR_IRQS_BASE +#define NR_IRQS_LEGACY NR_IRQS_BASE /* External interruption codes */ #define EXT_IRQ_INTERRUPT_KEY 0x0040 |